properly declare the aircontrol power cvar
[xonotic/darkplaces.git] / sv_main.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20 // sv_main.c -- server main program
21
22 #include "quakedef.h"
23 #include "sv_demo.h"
24 #include "libcurl.h"
25 #include "csprogs.h"
26
27 static void SV_SaveEntFile_f(void);
28 static void SV_StartDownload_f(void);
29 static void SV_Download_f(void);
30 static void SV_VM_Setup(void);
31 extern cvar_t net_connecttimeout;
32
33 void VM_CustomStats_Clear (void);
34 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
35
36 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
37 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
38 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
39 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
40 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
41 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
42 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
43 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
44 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
45 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
46 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
47
48 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
49 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
50 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration; when < 0, the speed is clamped against the maximum allowed forward speed after the move"};
51 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging); when < 0, only so much friction is applied that braking (by accelerating backwards) cannot be stronger"};
52 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
53 cvar_t sv_airstopaccelerate = {0, "sv_airstopaccelerate", "0", "when set, replacement for sv_airaccelerate when moving backwards"};
54 cvar_t sv_airstrafeaccelerate = {0, "sv_airstrafeaccelerate", "0", "when set, replacement for sv_airaccelerate when just strafing"};
55 cvar_t sv_maxairstrafespeed = {0, "sv_maxairstrafespeed", "0", "when set, replacement for sv_maxairspeed when just strafing"};
56 cvar_t sv_aircontrol = {0, "sv_aircontrol", "0", "CPMA-style air control"};
57 cvar_t sv_aircontrol_power = {0, "sv_aircontrol_power", "2", "CPMA-style air control exponent"};
58 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
59 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
60 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
61 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
62 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
63 cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "128", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
64 cvar_t sv_checkforpacketsduringsleep = {0, "sv_checkforpacketsduringsleep", "0", "uses select() function to wait between frames which can be interrupted by packets being received, instead of Sleep()/usleep()/SDL_Sleep() functions which do not check for packets"};
65 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
66 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
67 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
68 cvar_t sv_clmovement_inputtimeout = {0, "sv_clmovement_inputtimeout", "0.2", "when a client does not send input for this many seconds, force them to move anyway (unlike QuakeWorld)"};
69 cvar_t sv_cullentities_nevercullbmodels = {0, "sv_cullentities_nevercullbmodels", "0", "if enabled the clients are always notified of moving doors and lifts and other submodels of world (warning: eats a lot of network bandwidth on some levels!)"};
70 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
71 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
72 cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "0", "somewhat slow but very tight culling of hidden entities, minimizes network traffic and makes wallhack cheats useless"};
73 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
74 cvar_t sv_cullentities_trace_delay_players = {0, "sv_cullentities_trace_delay_players", "0.2", "number of seconds until the entity gets actually culled if it is a player entity"};
75 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
76 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
77 cvar_t sv_cullentities_trace_prediction_time = {0, "sv_cullentities_trace_prediction_time", "0.2", "how many seconds of prediction to use"};
78 cvar_t sv_cullentities_trace_entityocclusion = {0, "sv_cullentities_trace_entityocclusion", "0", "also check if doors and other bsp models are in the way"};
79 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "2", "number of samples to test for entity culling"};
80 cvar_t sv_cullentities_trace_samples_extra = {0, "sv_cullentities_trace_samples_extra", "2", "number of samples to test for entity culling when the entity affects its surroundings by e.g. dlight"};
81 cvar_t sv_cullentities_trace_samples_players = {0, "sv_cullentities_trace_samples_players", "8", "number of samples to test for entity culling when the entity is a player entity"};
82 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
83 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
84 cvar_t sv_edgefriction = {0, "edgefriction", "1", "how much you slow down when nearing a ledge you might fall off, multiplier of sv_friction (Quake used 2, QuakeWorld used 1 due to a bug in physics code)"};
85 cvar_t sv_entpatch = {0, "sv_entpatch", "1", "enables loading of .ent files to override entities in the bsp (for example Threewave CTF server pack contains .ent patch files enabling play of CTF on id1 maps)"};
86 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "1", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
87 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
88 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
89 cvar_t sv_gameplayfix_blowupfallenzombies = {0, "sv_gameplayfix_blowupfallenzombies", "1", "causes findradius to detect SOLID_NOT entities such as zombies and corpses on the floor, allowing splash damage to apply to them"};
90 cvar_t sv_gameplayfix_consistentplayerprethink = {0, "sv_gameplayfix_consistentplayerprethink", "0", "improves fairness in multiplayer by running all PlayerPreThink functions (which fire weapons) before performing physics, then runing all PlayerPostThink functions"};
91 cvar_t sv_gameplayfix_delayprojectiles = {0, "sv_gameplayfix_delayprojectiles", "1", "causes entities to not move on the same frame they are spawned, meaning that projectiles wait until the next frame to perform their first move, giving proper interpolation and rocket trails, but making weapons harder to use at low framerates"};
92 cvar_t sv_gameplayfix_droptofloorstartsolid = {0, "sv_gameplayfix_droptofloorstartsolid", "1", "prevents items and monsters that start in a solid area from falling out of the level (makes droptofloor treat trace_startsolid as an acceptable outcome)"};
93 cvar_t sv_gameplayfix_droptofloorstartsolid_nudgetocorrect = {0, "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect", "1", "tries to nudge stuck items and monsters out of walls before droptofloor is performed"};
94 cvar_t sv_gameplayfix_easierwaterjump = {0, "sv_gameplayfix_easierwaterjump", "1", "changes water jumping to make it easier to get out of water (exactly like in QuakeWorld)"};
95 cvar_t sv_gameplayfix_findradiusdistancetobox = {0, "sv_gameplayfix_findradiusdistancetobox", "1", "causes findradius to check the distance to the corner of a box rather than the center of the box, makes findradius detect bmodels such as very large doors that would otherwise be unaffected by splash damage"};
96 cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
97 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
98 cvar_t sv_gameplayfix_multiplethinksperframe = {0, "sv_gameplayfix_multiplethinksperframe", "1", "allows entities to think more often than the server framerate, primarily useful for very high fire rate weapons"};
99 cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses, items, etc) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
100 cvar_t sv_gameplayfix_noairborncorpse_allowsuspendeditems = {0, "sv_gameplayfix_noairborncorpse_allowsuspendeditems", "1", "causes entities sitting ontop of objects that are instantaneously remove to float in midair (special hack to allow a common level design trick for floating items)"};
101 cvar_t sv_gameplayfix_nudgeoutofsolid = {0, "sv_gameplayfix_nudgeoutofsolid", "1", "attempts to fix physics errors (where an object ended up in solid for some reason)"};
102 cvar_t sv_gameplayfix_nudgeoutofsolid_bias = {0, "sv_gameplayfix_nudgeoutofsolid_bias", "0", "over-correction on nudgeoutofsolid logic, to prevent constant contact"};
103 cvar_t sv_gameplayfix_q2airaccelerate = {0, "sv_gameplayfix_q2airaccelerate", "0", "Quake2-style air acceleration"};
104 cvar_t sv_gameplayfix_nogravityonground = {0, "sv_gameplayfix_nogravityonground", "0", "Quake2-style air acceleration"};
105 cvar_t sv_gameplayfix_setmodelrealbox = {0, "sv_gameplayfix_setmodelrealbox", "1", "fixes a bug in Quake that made setmodel always set the entity box to ('-16 -16 -16', '16 16 16') rather than properly checking the model box, breaks some poorly coded mods"};
106 cvar_t sv_gameplayfix_slidemoveprojectiles = {0, "sv_gameplayfix_slidemoveprojectiles", "1", "allows MOVETYPE_FLY/FLYMISSILE/TOSS/BOUNCE/BOUNCEMISSILE entities to finish their move in a frame even if they hit something, fixes 'gravity accumulation' bug for grenades on steep slopes"};
107 cvar_t sv_gameplayfix_stepdown = {0, "sv_gameplayfix_stepdown", "0", "attempts to step down stairs, not just up them (prevents the familiar thud..thud..thud.. when running down stairs and slopes)"};
108 cvar_t sv_gameplayfix_stepwhilejumping = {0, "sv_gameplayfix_stepwhilejumping", "1", "applies step-up onto a ledge even while airborn, useful if you would otherwise just-miss the floor when running across small areas with gaps (for instance running across the moving platforms in dm2, or jumping to the megahealth and red armor in dm2 rather than using the bridge)"};
109 cvar_t sv_gameplayfix_stepmultipletimes = {0, "sv_gameplayfix_stepmultipletimes", "1", "applies step-up onto a ledge more than once in a single frame, when running quickly up stairs"};
110 cvar_t sv_gameplayfix_swiminbmodels = {0, "sv_gameplayfix_swiminbmodels", "1", "causes pointcontents (used to determine if you are in a liquid) to check bmodel entities as well as the world model, so you can swim around in (possibly moving) water bmodel entities"};
111 cvar_t sv_gameplayfix_upwardvelocityclearsongroundflag = {0, "sv_gameplayfix_upwardvelocityclearsongroundflag", "1", "prevents monsters, items, and most other objects from being stuck to the floor when pushed around by damage, and other situations in mods"};
112 cvar_t sv_gameplayfix_downtracesupportsongroundflag = {0, "sv_gameplayfix_downtracesupportsongroundflag", "1", "prevents very short moves from clearing onground (which may make the player stick to the floor at high netfps)"};
113 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
114 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
115 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
116 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
117 cvar_t sv_maxairspeed = {0, "sv_maxairspeed", "30", "maximum speed a player can accelerate to when airborn (note that it is possible to completely stop by moving the opposite direction)"};
118 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
119 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
120 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
121 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
122 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
123 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
124 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
125 cvar_t sv_random_seed = {0, "sv_random_seed", "", "random seed; when set, on every map start this random seed is used to initialize the random number generator. Don't touch it unless for benchmarking or debugging"};
126 cvar_t sv_ratelimitlocalplayer = {0, "sv_ratelimitlocalplayer", "0", "whether to apply rate limiting to the local player in a listen server (only useful for testing)"};
127 cvar_t sv_sound_land = {0, "sv_sound_land", "demon/dland2.wav", "sound to play when MOVETYPE_STEP entity hits the ground at high speed (empty cvar disables the sound)"};
128 cvar_t sv_sound_watersplash = {0, "sv_sound_watersplash", "misc/h2ohit1.wav", "sound to play when MOVETYPE_FLY/TOSS/BOUNCE/STEP entity enters or leaves water (empty cvar disables the sound)"};
129 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
130 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
131 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
132 cvar_t sv_wateraccelerate = {0, "sv_wateraccelerate", "-1", "rate at which a player accelerates to sv_maxspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
133 cvar_t sv_waterfriction = {CVAR_NOTIFY, "sv_waterfriction","-1", "how fast you slow down, if less than 0 the sv_friction variable is used instead"};
134 cvar_t sv_warsowbunny_airforwardaccel = {0, "sv_warsowbunny_airforwardaccel", "1.00001", "how fast you accelerate until you reach sv_maxspeed"};
135 cvar_t sv_warsowbunny_accel = {0, "sv_warsowbunny_accel", "0.1585", "how fast you accelerate until after reaching sv_maxspeed (it gets harder as you near sv_warsowbunny_topspeed)"};
136 cvar_t sv_warsowbunny_topspeed = {0, "sv_warsowbunny_topspeed", "925", "soft speed limit (can get faster with rjs and on ramps)"};
137 cvar_t sv_warsowbunny_turnaccel = {0, "sv_warsowbunny_turnaccel", "0", "max sharpness of turns (also master switch for the sv_warsowbunny_* mode; set this to 9 to enable)"};
138 cvar_t sv_warsowbunny_backtosideratio = {0, "sv_warsowbunny_backtosideratio", "0.8", "lower values make it easier to change direction without losing speed; the drawback is \"understeering\" in sharp turns"};
139 cvar_t sv_onlycsqcnetworking = {0, "sv_onlycsqcnetworking", "0", "disables legacy entity networking code for higher performance (except on clients, which can still be legacy)"};
140 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.0138889", "how long a server frame is in seconds, 0.05 is 20fps server rate, 0.1 is 10fps (can not be set higher than 0.1), 0 runs as many server frames as possible (makes games against bots a little smoother, overwhelms network players), 0.0138889 matches QuakeWorld physics"};
141 cvar_t teamplay = {CVAR_NOTIFY, "teamplay","0", "teamplay mode, values depend on mod but typically 0 = no teams, 1 = no team damage no self damage, 2 = team damage and self damage, some mods support 3 = no team damage but can damage self"};
142 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
143
144 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
145 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
146 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
147 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
148 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
149 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
150 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
151 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
152 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
153 cvar_t temp1 = {0, "temp1","0", "general cvar for mods to use, in stock id1 this selects which death animation to use on players (0 = random death, other values select specific death scenes)"};
154
155 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
156 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
157 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
158 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
159 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
160 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
161 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
162 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
163 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
164 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
165 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
166 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
167 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
168 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
169 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
170 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
171 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
172 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
173 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
174 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
175 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
176
177 cvar_t sv_autodemo_perclient = {CVAR_SAVE, "sv_autodemo_perclient", "0", "set to 1 to enable autorecorded per-client demos (they'll start to record at the beginning of a match); set it to 2 to also record client->server packets (for debugging)"};
178 cvar_t sv_autodemo_perclient_nameformat = {CVAR_SAVE, "sv_autodemo_perclient_nameformat", "sv_autodemos/%Y-%m-%d_%H-%M", "The format of the sv_autodemo_perclient filename, followed by the map name, the client number and the IP address + port number, separated by underscores (the date is encoded using strftime escapes)" };
179 cvar_t sv_autodemo_perclient_discardable = {CVAR_SAVE, "sv_autodemo_perclient_discardable", "0", "Allow game code to decide whether a demo should be kept or discarded."};
180
181 cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
182
183 server_t sv;
184 server_static_t svs;
185
186 mempool_t *sv_mempool = NULL;
187
188 extern cvar_t slowmo;
189 extern float            scr_centertime_off;
190
191 // MUST match effectnameindex_t in client.h
192 static const char *standardeffectnames[EFFECT_TOTAL] =
193 {
194         "",
195         "TE_GUNSHOT",
196         "TE_GUNSHOTQUAD",
197         "TE_SPIKE",
198         "TE_SPIKEQUAD",
199         "TE_SUPERSPIKE",
200         "TE_SUPERSPIKEQUAD",
201         "TE_WIZSPIKE",
202         "TE_KNIGHTSPIKE",
203         "TE_EXPLOSION",
204         "TE_EXPLOSIONQUAD",
205         "TE_TAREXPLOSION",
206         "TE_TELEPORT",
207         "TE_LAVASPLASH",
208         "TE_SMALLFLASH",
209         "TE_FLAMEJET",
210         "EF_FLAME",
211         "TE_BLOOD",
212         "TE_SPARK",
213         "TE_PLASMABURN",
214         "TE_TEI_G3",
215         "TE_TEI_SMOKE",
216         "TE_TEI_BIGEXPLOSION",
217         "TE_TEI_PLASMAHIT",
218         "EF_STARDUST",
219         "TR_ROCKET",
220         "TR_GRENADE",
221         "TR_BLOOD",
222         "TR_WIZSPIKE",
223         "TR_SLIGHTBLOOD",
224         "TR_KNIGHTSPIKE",
225         "TR_VORESPIKE",
226         "TR_NEHAHRASMOKE",
227         "TR_NEXUIZPLASMA",
228         "TR_GLOWTRAIL",
229         "SVC_PARTICLE"
230 };
231
232 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
233
234 prvm_required_field_t reqfields[] =
235 {
236         {ev_entity, "cursor_trace_ent"},
237         {ev_entity, "drawonlytoclient"},
238         {ev_entity, "exteriormodeltoclient"},
239         {ev_entity, "nodrawtoclient"},
240         {ev_entity, "tag_entity"},
241         {ev_entity, "viewmodelforclient"},
242         {ev_float, "SendFlags"},
243         {ev_float, "Version"},
244         {ev_float, "alpha"},
245         {ev_float, "ammo_cells1"},
246         {ev_float, "ammo_lava_nails"},
247         {ev_float, "ammo_multi_rockets"},
248         {ev_float, "ammo_nails1"},
249         {ev_float, "ammo_plasma"},
250         {ev_float, "ammo_rockets1"},
251         {ev_float, "ammo_shells1"},
252         {ev_float, "button3"},
253         {ev_float, "button4"},
254         {ev_float, "button5"},
255         {ev_float, "button6"},
256         {ev_float, "button7"},
257         {ev_float, "button8"},
258         {ev_float, "button9"},
259         {ev_float, "button10"},
260         {ev_float, "button11"},
261         {ev_float, "button12"},
262         {ev_float, "button13"},
263         {ev_float, "button14"},
264         {ev_float, "button15"},
265         {ev_float, "button16"},
266         {ev_float, "buttonchat"},
267         {ev_float, "buttonuse"},
268         {ev_float, "clientcolors"},
269         {ev_float, "cursor_active"},
270         {ev_float, "disableclientprediction"},
271         {ev_float, "fullbright"},
272         {ev_float, "glow_color"},
273         {ev_float, "glow_size"},
274         {ev_float, "glow_trail"},
275         {ev_float, "gravity"},
276         {ev_float, "idealpitch"},
277         {ev_float, "items2"},
278         {ev_float, "light_lev"},
279         {ev_float, "modelflags"},
280         {ev_float, "pflags"},
281         {ev_float, "ping"},
282         {ev_float, "pitch_speed"},
283         {ev_float, "pmodel"},
284         {ev_float, "renderamt"}, // HalfLife support
285         {ev_float, "rendermode"}, // HalfLife support
286         {ev_float, "scale"},
287         {ev_float, "style"},
288         {ev_float, "tag_index"},
289         {ev_float, "viewzoom"},
290         {ev_function, "SendEntity"},
291         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
292         {ev_function, "customizeentityforclient"},
293         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
294         {ev_string, "netaddress"},
295         {ev_string, "playermodel"},
296         {ev_string, "playerskin"},
297         {ev_vector, "color"},
298         {ev_vector, "colormod"},
299         {ev_vector, "cursor_screen"},
300         {ev_vector, "cursor_trace_endpos"},
301         {ev_vector, "cursor_trace_start"},
302         {ev_vector, "glowmod"},
303         {ev_vector, "movement"},
304         {ev_vector, "punchvector"},
305
306         // physics
307         //{ev_float, "solid"},
308         //{ev_float, "movetype"},
309         //{ev_float, "modelindex"},
310         {ev_vector, "mass"},
311         //{ev_vector, "origin"},
312         //{ev_vector, "velocity"},
313         //{ev_vector, "axis_forward"},
314         //{ev_vector, "axis_left"},
315         //{ev_vector, "axis_up"},
316         //{ev_vector, "spinvelocity"},
317         //{ev_vector, "angles"},
318         //{ev_vector, "avelocity"},
319
320 };
321
322
323
324 //============================================================================
325
326 void SV_AreaStats_f(void)
327 {
328         World_PrintAreaStats(&sv.world, "server");
329 }
330
331 /*
332 ===============
333 SV_Init
334 ===============
335 */
336 void SV_Init (void)
337 {
338         // init the csqc progs cvars, since they are updated/used by the server code
339         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
340         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
341         extern cvar_t csqc_progcrc;
342         extern cvar_t csqc_progsize;
343         Cvar_RegisterVariable (&csqc_progname);
344         Cvar_RegisterVariable (&csqc_progcrc);
345         Cvar_RegisterVariable (&csqc_progsize);
346
347         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
348         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
349         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
350         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
351
352         Cvar_RegisterVariable (&coop);
353         Cvar_RegisterVariable (&deathmatch);
354         Cvar_RegisterVariable (&fraglimit);
355         Cvar_RegisterVariable (&gamecfg);
356         Cvar_RegisterVariable (&noexit);
357         Cvar_RegisterVariable (&nomonsters);
358         Cvar_RegisterVariable (&pausable);
359         Cvar_RegisterVariable (&pr_checkextension);
360         Cvar_RegisterVariable (&samelevel);
361         Cvar_RegisterVariable (&skill);
362         Cvar_RegisterVariable (&slowmo);
363         Cvar_RegisterVariable (&sv_accelerate);
364         Cvar_RegisterVariable (&sv_aim);
365         Cvar_RegisterVariable (&sv_airaccel_qw);
366         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
367         Cvar_RegisterVariable (&sv_airaccelerate);
368         Cvar_RegisterVariable (&sv_airstopaccelerate);
369         Cvar_RegisterVariable (&sv_airstrafeaccelerate);
370         Cvar_RegisterVariable (&sv_maxairstrafespeed);
371         Cvar_RegisterVariable (&sv_aircontrol);
372         Cvar_RegisterVariable (&sv_aircontrol_power);
373         Cvar_RegisterVariable (&sv_allowdownloads);
374         Cvar_RegisterVariable (&sv_allowdownloads_archive);
375         Cvar_RegisterVariable (&sv_allowdownloads_config);
376         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
377         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
378         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
379         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
380         Cvar_RegisterVariable (&sv_clmovement_enable);
381         Cvar_RegisterVariable (&sv_clmovement_minping);
382         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
383         Cvar_RegisterVariable (&sv_clmovement_inputtimeout);
384         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
385         Cvar_RegisterVariable (&sv_cullentities_pvs);
386         Cvar_RegisterVariable (&sv_cullentities_stats);
387         Cvar_RegisterVariable (&sv_cullentities_trace);
388         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
389         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
390         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
391         Cvar_RegisterVariable (&sv_cullentities_trace_entityocclusion);
392         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
393         Cvar_RegisterVariable (&sv_cullentities_trace_prediction_time);
394         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
395         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
396         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
397         Cvar_RegisterVariable (&sv_debugmove);
398         Cvar_RegisterVariable (&sv_echobprint);
399         Cvar_RegisterVariable (&sv_edgefriction);
400         Cvar_RegisterVariable (&sv_entpatch);
401         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
402         Cvar_RegisterVariable (&sv_freezenonclients);
403         Cvar_RegisterVariable (&sv_friction);
404         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
405         Cvar_RegisterVariable (&sv_gameplayfix_consistentplayerprethink);
406         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
407         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
408         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
409         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
410         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
411         Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
412         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
413         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
414         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
415         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse_allowsuspendeditems);
416         Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid);
417         Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid_bias);
418         Cvar_RegisterVariable (&sv_gameplayfix_q2airaccelerate);
419         Cvar_RegisterVariable (&sv_gameplayfix_nogravityonground);
420         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
421         Cvar_RegisterVariable (&sv_gameplayfix_slidemoveprojectiles);
422         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
423         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
424         Cvar_RegisterVariable (&sv_gameplayfix_stepmultipletimes);
425         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
426         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
427         Cvar_RegisterVariable (&sv_gameplayfix_downtracesupportsongroundflag);
428         Cvar_RegisterVariable (&sv_gravity);
429         Cvar_RegisterVariable (&sv_idealpitchscale);
430         Cvar_RegisterVariable (&sv_jumpstep);
431         Cvar_RegisterVariable (&sv_jumpvelocity);
432         Cvar_RegisterVariable (&sv_maxairspeed);
433         Cvar_RegisterVariable (&sv_maxrate);
434         Cvar_RegisterVariable (&sv_maxspeed);
435         Cvar_RegisterVariable (&sv_maxvelocity);
436         Cvar_RegisterVariable (&sv_nostep);
437         Cvar_RegisterVariable (&sv_playerphysicsqc);
438         Cvar_RegisterVariable (&sv_progs);
439         Cvar_RegisterVariable (&sv_protocolname);
440         Cvar_RegisterVariable (&sv_random_seed);
441         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
442         Cvar_RegisterVariable (&sv_sound_land);
443         Cvar_RegisterVariable (&sv_sound_watersplash);
444         Cvar_RegisterVariable (&sv_stepheight);
445         Cvar_RegisterVariable (&sv_stopspeed);
446         Cvar_RegisterVariable (&sv_wallfriction);
447         Cvar_RegisterVariable (&sv_wateraccelerate);
448         Cvar_RegisterVariable (&sv_waterfriction);
449         Cvar_RegisterVariable (&sv_warsowbunny_airforwardaccel);
450         Cvar_RegisterVariable (&sv_warsowbunny_accel);
451         Cvar_RegisterVariable (&sv_warsowbunny_topspeed);
452         Cvar_RegisterVariable (&sv_warsowbunny_turnaccel);
453         Cvar_RegisterVariable (&sv_warsowbunny_backtosideratio);
454         Cvar_RegisterVariable (&sv_onlycsqcnetworking);
455         Cvar_RegisterVariable (&sys_ticrate);
456         Cvar_RegisterVariable (&teamplay);
457         Cvar_RegisterVariable (&timelimit);
458
459         Cvar_RegisterVariable (&saved1);
460         Cvar_RegisterVariable (&saved2);
461         Cvar_RegisterVariable (&saved3);
462         Cvar_RegisterVariable (&saved4);
463         Cvar_RegisterVariable (&savedgamecfg);
464         Cvar_RegisterVariable (&scratch1);
465         Cvar_RegisterVariable (&scratch2);
466         Cvar_RegisterVariable (&scratch3);
467         Cvar_RegisterVariable (&scratch4);
468         Cvar_RegisterVariable (&temp1);
469
470         // LordHavoc: Nehahra uses these to pass data around cutscene demos
471         if (gamemode == GAME_NEHAHRA)
472         {
473                 Cvar_RegisterVariable (&nehx00);
474                 Cvar_RegisterVariable (&nehx01);
475                 Cvar_RegisterVariable (&nehx02);
476                 Cvar_RegisterVariable (&nehx03);
477                 Cvar_RegisterVariable (&nehx04);
478                 Cvar_RegisterVariable (&nehx05);
479                 Cvar_RegisterVariable (&nehx06);
480                 Cvar_RegisterVariable (&nehx07);
481                 Cvar_RegisterVariable (&nehx08);
482                 Cvar_RegisterVariable (&nehx09);
483                 Cvar_RegisterVariable (&nehx10);
484                 Cvar_RegisterVariable (&nehx11);
485                 Cvar_RegisterVariable (&nehx12);
486                 Cvar_RegisterVariable (&nehx13);
487                 Cvar_RegisterVariable (&nehx14);
488                 Cvar_RegisterVariable (&nehx15);
489                 Cvar_RegisterVariable (&nehx16);
490                 Cvar_RegisterVariable (&nehx17);
491                 Cvar_RegisterVariable (&nehx18);
492                 Cvar_RegisterVariable (&nehx19);
493         }
494         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
495
496         Cvar_RegisterVariable (&sv_autodemo_perclient);
497         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
498         Cvar_RegisterVariable (&sv_autodemo_perclient_discardable);
499
500         Cvar_RegisterVariable (&halflifebsp);
501
502         // any special defaults for gamemodes go here
503         if (gamemode == GAME_NEHAHRA)
504         {
505                 // Nehahra pushable crates malfunction in some levels if this is on
506                 Cvar_SetValueQuick (&sv_gameplayfix_upwardvelocityclearsongroundflag, 0);
507                 // Nehahra NPC AI is confused by this feature
508                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
509         }
510         if (gamemode == GAME_HIPNOTIC)
511         {
512                 // hipnotic mission pack has issues in their 'friendly monster' ai, which seem to attempt to attack themselves for some reason when findradius() returns non-solid entities.
513                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
514                 // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
515                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
516                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
517                 Cvar_SetValueQuick (&sv_gameplayfix_slidemoveprojectiles, 0);
518         }
519         if (gamemode == GAME_ROGUE)
520         {
521                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
522                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
523         }
524         if (gamemode == GAME_NEXUIZ)
525         {
526                 Cvar_SetValueQuick (&sv_gameplayfix_q2airaccelerate, 1);
527         }
528
529         sv_mempool = Mem_AllocPool("server", 0, NULL);
530 }
531
532 static void SV_SaveEntFile_f(void)
533 {
534         char basename[MAX_QPATH];
535         if (!sv.active || !sv.worldmodel)
536         {
537                 Con_Print("Not running a server\n");
538                 return;
539         }
540         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
541         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
542 }
543
544
545 /*
546 =============================================================================
547
548 EVENT MESSAGES
549
550 =============================================================================
551 */
552
553 /*
554 ==================
555 SV_StartParticle
556
557 Make sure the event gets sent to all clients
558 ==================
559 */
560 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
561 {
562         int i;
563
564         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
565                 return;
566         MSG_WriteByte (&sv.datagram, svc_particle);
567         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
568         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
569         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
570         for (i=0 ; i<3 ; i++)
571                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
572         MSG_WriteByte (&sv.datagram, count);
573         MSG_WriteByte (&sv.datagram, color);
574         SV_FlushBroadcastMessages();
575 }
576
577 /*
578 ==================
579 SV_StartEffect
580
581 Make sure the event gets sent to all clients
582 ==================
583 */
584 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
585 {
586         if (modelindex >= 256 || startframe >= 256)
587         {
588                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
589                         return;
590                 MSG_WriteByte (&sv.datagram, svc_effect2);
591                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
592                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
593                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
594                 MSG_WriteShort (&sv.datagram, modelindex);
595                 MSG_WriteShort (&sv.datagram, startframe);
596                 MSG_WriteByte (&sv.datagram, framecount);
597                 MSG_WriteByte (&sv.datagram, framerate);
598         }
599         else
600         {
601                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
602                         return;
603                 MSG_WriteByte (&sv.datagram, svc_effect);
604                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
605                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
606                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
607                 MSG_WriteByte (&sv.datagram, modelindex);
608                 MSG_WriteByte (&sv.datagram, startframe);
609                 MSG_WriteByte (&sv.datagram, framecount);
610                 MSG_WriteByte (&sv.datagram, framerate);
611         }
612         SV_FlushBroadcastMessages();
613 }
614
615 /*
616 ==================
617 SV_StartSound
618
619 Each entity can have eight independant sound sources, like voice,
620 weapon, feet, etc.
621
622 Channel 0 is an auto-allocate channel, the others override anything
623 already running on that entity/channel pair.
624
625 An attenuation of 0 will play full volume everywhere in the level.
626 Larger attenuations will drop off.  (max 4 attenuation)
627
628 ==================
629 */
630 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
631 {
632         int sound_num, field_mask, i, ent;
633
634         if (volume < 0 || volume > 255)
635         {
636                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
637                 return;
638         }
639
640         if (attenuation < 0 || attenuation > 4)
641         {
642                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
643                 return;
644         }
645
646         if (channel < 0 || channel > 7)
647         {
648                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
649                 return;
650         }
651
652         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
653                 return;
654
655 // find precache number for sound
656         sound_num = SV_SoundIndex(sample, 1);
657         if (!sound_num)
658                 return;
659
660         ent = PRVM_NUM_FOR_EDICT(entity);
661
662         field_mask = 0;
663         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
664                 field_mask |= SND_VOLUME;
665         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
666                 field_mask |= SND_ATTENUATION;
667         if (ent >= 8192)
668                 field_mask |= SND_LARGEENTITY;
669         if (sound_num >= 256 || channel >= 8)
670                 field_mask |= SND_LARGESOUND;
671
672 // directed messages go only to the entity they are targeted on
673         MSG_WriteByte (&sv.datagram, svc_sound);
674         MSG_WriteByte (&sv.datagram, field_mask);
675         if (field_mask & SND_VOLUME)
676                 MSG_WriteByte (&sv.datagram, volume);
677         if (field_mask & SND_ATTENUATION)
678                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
679         if (field_mask & SND_LARGEENTITY)
680         {
681                 MSG_WriteShort (&sv.datagram, ent);
682                 MSG_WriteByte (&sv.datagram, channel);
683         }
684         else
685                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
686         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
687                 MSG_WriteShort (&sv.datagram, sound_num);
688         else
689                 MSG_WriteByte (&sv.datagram, sound_num);
690         for (i = 0;i < 3;i++)
691                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
692         SV_FlushBroadcastMessages();
693 }
694
695 /*
696 ==================
697 SV_StartPointSound
698
699 Nearly the same logic as SV_StartSound, except an origin
700 instead of an entity is provided and channel is omitted.
701
702 The entity sent to the client is 0 (world) and the channel
703 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
704 function, therefore the check for it is omitted.
705
706 ==================
707 */
708 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
709 {
710         int sound_num, field_mask, i;
711
712         if (volume < 0 || volume > 255)
713         {
714                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
715                 return;
716         }
717
718         if (attenuation < 0 || attenuation > 4)
719         {
720                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
721                 return;
722         }
723
724         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
725                 return;
726
727         // find precache number for sound
728         sound_num = SV_SoundIndex(sample, 1);
729         if (!sound_num)
730                 return;
731
732         field_mask = 0;
733         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
734                 field_mask |= SND_VOLUME;
735         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
736                 field_mask |= SND_ATTENUATION;
737         if (sound_num >= 256)
738                 field_mask |= SND_LARGESOUND;
739
740 // directed messages go only to the entity they are targeted on
741         MSG_WriteByte (&sv.datagram, svc_sound);
742         MSG_WriteByte (&sv.datagram, field_mask);
743         if (field_mask & SND_VOLUME)
744                 MSG_WriteByte (&sv.datagram, volume);
745         if (field_mask & SND_ATTENUATION)
746                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
747         // Always write entnum 0 for the world entity
748         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
749         if (field_mask & SND_LARGESOUND)
750                 MSG_WriteShort (&sv.datagram, sound_num);
751         else
752                 MSG_WriteByte (&sv.datagram, sound_num);
753         for (i = 0;i < 3;i++)
754                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
755         SV_FlushBroadcastMessages();
756 }
757
758 /*
759 ==============================================================================
760
761 CLIENT SPAWNING
762
763 ==============================================================================
764 */
765
766 /*
767 ================
768 SV_SendServerinfo
769
770 Sends the first message from the server to a connected client.
771 This will be sent on the initial connection and upon each server load.
772 ================
773 */
774 void SV_SendServerinfo (client_t *client)
775 {
776         int i;
777         char message[128];
778
779         // we know that this client has a netconnection and thus is not a bot
780
781         // edicts get reallocated on level changes, so we need to update it here
782         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
783
784         // clear cached stuff that depends on the level
785         client->weaponmodel[0] = 0;
786         client->weaponmodelindex = 0;
787
788         // LordHavoc: clear entityframe tracking
789         client->latestframenum = 0;
790
791         // initialize the movetime, so a speedhack can't make use of the time before this client joined
792         client->cmd.time = sv.time;
793
794         if (client->entitydatabase)
795                 EntityFrame_FreeDatabase(client->entitydatabase);
796         if (client->entitydatabase4)
797                 EntityFrame4_FreeDatabase(client->entitydatabase4);
798         if (client->entitydatabase5)
799                 EntityFrame5_FreeDatabase(client->entitydatabase5);
800
801         memset(client->stats, 0, sizeof(client->stats));
802         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
803
804         if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
805         {
806                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
807                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
808                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
809                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
810                 else
811                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
812         }
813
814         // reset csqc entity versions
815         for (i = 0;i < prog->max_edicts;i++)
816         {
817                 client->csqcentityscope[i] = 0;
818                 client->csqcentitysendflags[i] = 0xFFFFFF;
819                 client->csqcentityglobalhistory[i] = 0;
820         }
821         for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
822         {
823                 client->csqcentityframehistory[i].num = 0;
824                 client->csqcentityframehistory[i].framenum = -1;
825         }
826         client->csqcnumedicts = 0;
827         client->csqcentityframehistory_next = 0;
828
829         SZ_Clear (&client->netconnection->message);
830         MSG_WriteByte (&client->netconnection->message, svc_print);
831         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)\n", gamename, buildstring, prog->filecrc);
832         MSG_WriteString (&client->netconnection->message,message);
833
834         SV_StopDemoRecording(client); // to split up demos into different files
835         if(sv_autodemo_perclient.integer && client->netconnection)
836         {
837                 char demofile[MAX_OSPATH];
838                 char levelname[MAX_QPATH];
839                 char ipaddress[MAX_QPATH];
840                 size_t i;
841
842                 // start a new demo file
843                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
844                 if (strrchr(levelname, '.'))
845                         *(strrchr(levelname, '.')) = 0;
846
847                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
848                 for(i = 0; ipaddress[i]; ++i)
849                         if(!isalnum(ipaddress[i]))
850                                 ipaddress[i] = '-';
851                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
852
853                 SV_StartDemoRecording(client, demofile, -1);
854         }
855
856         //[515]: init csprogs according to version of svprogs, check the crc, etc.
857         if (sv.csqc_progname[0])
858         {
859                 prvm_eval_t *val;
860                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
861                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
862                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
863                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
864                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
865                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
866                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
867
868                 if(client->sv_demo_file != NULL)
869                 {
870                         int i;
871                         static char buf[NET_MAXMESSAGE];
872                         sizebuf_t sb;
873
874                         sb.data = (unsigned char *) buf;
875                         sb.maxsize = sizeof(buf);
876                         i = 0;
877                         while(MakeDownloadPacket(sv.csqc_progname, svs.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
878                                 SV_WriteDemoMessage(client, &sb, false);
879                 }
880
881                 //[515]: init stufftext string (it is sent before svc_serverinfo)
882                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
883                 if (val)
884                 {
885                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
886                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
887                 }
888         }
889
890         //if (sv_allowdownloads.integer)
891         // always send the info that the server supports the protocol, even if downloads are forbidden
892         // only because of that, the CSQC exception can work
893         {
894                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
895                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
896         }
897
898         // send at this time so it's guaranteed to get executed at the right time
899         {
900                 client_t *save;
901                 save = host_client;
902                 host_client = client;
903                 Curl_SendRequirements();
904                 host_client = save;
905         }
906
907         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
908         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
909         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
910
911         if (!coop.integer && deathmatch.integer)
912                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
913         else
914                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
915
916         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
917
918         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
919                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
920         MSG_WriteByte (&client->netconnection->message, 0);
921
922         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
923                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
924         MSG_WriteByte (&client->netconnection->message, 0);
925
926 // send music
927         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
928         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
929         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
930
931 // set view
932 // store this in clientcamera, too
933         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
934         MSG_WriteByte (&client->netconnection->message, svc_setview);
935         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
936
937         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
938         MSG_WriteByte (&client->netconnection->message, 1);
939
940         client->spawned = false;                // need prespawn, spawn, etc
941         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
942
943         // clear movement info until client enters the new level properly
944         memset(&client->cmd, 0, sizeof(client->cmd));
945         client->movesequence = 0;
946         client->movement_highestsequence_seen = 0;
947         memset(&client->movement_count, 0, sizeof(client->movement_count));
948 #ifdef NUM_PING_TIMES
949         for (i = 0;i < NUM_PING_TIMES;i++)
950                 client->ping_times[i] = 0;
951         client->num_pings = 0;
952 #endif
953         client->ping = 0;
954
955         // allow the client some time to send his keepalives, even if map loading took ages
956         client->netconnection->timeout = realtime + net_connecttimeout.value;
957 }
958
959 /*
960 ================
961 SV_ConnectClient
962
963 Initializes a client_t for a new net connection.  This will only be called
964 once for a player each game, not once for each level change.
965 ================
966 */
967 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
968 {
969         client_t                *client;
970         int                             i;
971         float                   spawn_parms[NUM_SPAWN_PARMS];
972
973         client = svs.clients + clientnum;
974
975 // set up the client_t
976         if (sv.loadgame)
977                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
978         memset (client, 0, sizeof(*client));
979         client->active = true;
980         client->netconnection = netconnection;
981
982         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
983
984         strlcpy(client->name, "unconnected", sizeof(client->name));
985         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
986         client->spawned = false;
987         client->edict = PRVM_EDICT_NUM(clientnum+1);
988         if (client->netconnection)
989                 client->netconnection->message.allowoverflow = true;            // we can catch it
990         // prepare the unreliable message buffer
991         client->unreliablemsg.data = client->unreliablemsg_data;
992         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
993         // updated by receiving "rate" command from client, this is also the default if not using a DP client
994         client->rate = 1000000000;
995         // no limits for local player
996         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
997                 client->rate = 1000000000;
998         client->connecttime = realtime;
999
1000         if (sv.loadgame)
1001                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
1002         else
1003         {
1004                 // call the progs to get default spawn parms for the new client
1005                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
1006                 prog->globals.server->self = 0;
1007                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
1008                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
1009                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
1010
1011                 // set up the entity for this client (including .colormap, .team, etc)
1012                 PRVM_ED_ClearEdict(client->edict);
1013         }
1014
1015         // don't call SendServerinfo for a fresh botclient because its fields have
1016         // not been set up by the qc yet
1017         if (client->netconnection)
1018                 SV_SendServerinfo (client);
1019         else
1020                 client->spawned = true;
1021 }
1022
1023
1024 /*
1025 ===============================================================================
1026
1027 FRAME UPDATES
1028
1029 ===============================================================================
1030 */
1031
1032 /*
1033 =============================================================================
1034
1035 The PVS must include a small area around the client to allow head bobbing
1036 or other small motion on the client side.  Otherwise, a bob might cause an
1037 entity that should be visible to not show up, especially when the bob
1038 crosses a waterline.
1039
1040 =============================================================================
1041 */
1042
1043 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
1044 {
1045         int i;
1046         unsigned int sendflags;
1047         unsigned int version;
1048         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
1049         unsigned int customizeentityforclient;
1050         unsigned int sendentity;
1051         float f;
1052         vec3_t cullmins, cullmaxs;
1053         dp_model_t *model;
1054         prvm_eval_t *val, *val2;
1055
1056         // fast path for games that do not use legacy entity networking
1057         // note: still networks clients even if they are legacy
1058         sendentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity)->function;
1059         if (sv_onlycsqcnetworking.integer && !sendentity && enumber > svs.maxclients)
1060                 return false;
1061
1062         // this 2 billion unit check is actually to detect NAN origins
1063         // (we really don't want to send those)
1064         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
1065                 return false;
1066
1067         // EF_NODRAW prevents sending for any reason except for your own
1068         // client, so we must keep all clients in this superset
1069         effects = (unsigned)ent->fields.server->effects;
1070
1071         // we can omit invisible entities with no effects that are not clients
1072         // LordHavoc: this could kill tags attached to an invisible entity, I
1073         // just hope we never have to support that case
1074         i = (int)ent->fields.server->modelindex;
1075         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model) && sv.models[i]) ? i : 0;
1076
1077         flags = 0;
1078         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
1079         glowsize = (unsigned char)bound(0, i, 255);
1080         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
1081                 flags |= RENDER_GLOWTRAIL;
1082         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
1083                 flags |= RENDER_VIEWMODEL;
1084
1085         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
1086         light[0] = (unsigned short)bound(0, f, 65535);
1087         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
1088         light[1] = (unsigned short)bound(0, f, 65535);
1089         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
1090         light[2] = (unsigned short)bound(0, f, 65535);
1091         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1092         light[3] = (unsigned short)bound(0, f, 65535);
1093         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1094         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1095
1096         if (gamemode == GAME_TENEBRAE)
1097         {
1098                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1099                 if (effects & 16)
1100                 {
1101                         effects &= ~16;
1102                         lightpflags |= PFLAGS_FULLDYNAMIC;
1103                 }
1104                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1105                 if (effects & 32)
1106                 {
1107                         effects &= ~32;
1108                         light[0] = (int)(0.2*256);
1109                         light[1] = (int)(1.0*256);
1110                         light[2] = (int)(0.2*256);
1111                         light[3] = 200;
1112                         lightpflags |= PFLAGS_FULLDYNAMIC;
1113                 }
1114         }
1115
1116         specialvisibilityradius = 0;
1117         if (lightpflags & PFLAGS_FULLDYNAMIC)
1118                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1119         if (glowsize)
1120                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1121         if (flags & RENDER_GLOWTRAIL)
1122                 specialvisibilityradius = max(specialvisibilityradius, 100);
1123         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1124         {
1125                 if (effects & EF_BRIGHTFIELD)
1126                         specialvisibilityradius = max(specialvisibilityradius, 80);
1127                 if (effects & EF_MUZZLEFLASH)
1128                         specialvisibilityradius = max(specialvisibilityradius, 100);
1129                 if (effects & EF_BRIGHTLIGHT)
1130                         specialvisibilityradius = max(specialvisibilityradius, 400);
1131                 if (effects & EF_DIMLIGHT)
1132                         specialvisibilityradius = max(specialvisibilityradius, 200);
1133                 if (effects & EF_RED)
1134                         specialvisibilityradius = max(specialvisibilityradius, 200);
1135                 if (effects & EF_BLUE)
1136                         specialvisibilityradius = max(specialvisibilityradius, 200);
1137                 if (effects & EF_FLAME)
1138                         specialvisibilityradius = max(specialvisibilityradius, 250);
1139                 if (effects & EF_STARDUST)
1140                         specialvisibilityradius = max(specialvisibilityradius, 100);
1141         }
1142
1143         // early culling checks
1144         // (final culling is done by SV_MarkWriteEntityStateToClient)
1145         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1146         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1147                 return false;
1148
1149         *cs = defaultstate;
1150         cs->active = ACTIVE_NETWORK;
1151         cs->number = enumber;
1152         VectorCopy(ent->fields.server->origin, cs->origin);
1153         VectorCopy(ent->fields.server->angles, cs->angles);
1154         cs->flags = flags;
1155         cs->effects = effects;
1156         cs->colormap = (unsigned)ent->fields.server->colormap;
1157         cs->modelindex = modelindex;
1158         cs->skin = (unsigned)ent->fields.server->skin;
1159         cs->frame = (unsigned)ent->fields.server->frame;
1160         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1161         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1162         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1163         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1164         cs->customizeentityforclient = customizeentityforclient;
1165         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1166         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1167         cs->glowsize = glowsize;
1168
1169         // don't need to init cs->colormod because the defaultstate did that for us
1170         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1171         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1172         if (val->vector[0] || val->vector[1] || val->vector[2])
1173         {
1174                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1175                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1176                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1177         }
1178
1179         // don't need to init cs->glowmod because the defaultstate did that for us
1180         //cs->glowmod[0] = cs->glowmod[1] = cs->glowmod[2] = 32;
1181         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glowmod);
1182         if (val->vector[0] || val->vector[1] || val->vector[2])
1183         {
1184                 i = (int)(val->vector[0] * 32.0f);cs->glowmod[0] = bound(0, i, 255);
1185                 i = (int)(val->vector[1] * 32.0f);cs->glowmod[1] = bound(0, i, 255);
1186                 i = (int)(val->vector[2] * 32.0f);cs->glowmod[2] = bound(0, i, 255);
1187         }
1188
1189         cs->modelindex = modelindex;
1190
1191         cs->alpha = 255;
1192         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1193         if (f)
1194         {
1195                 i = (int)f;
1196                 cs->alpha = (unsigned char)bound(0, i, 255);
1197         }
1198         // halflife
1199         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1200         if (f)
1201         {
1202                 i = (int)f;
1203                 cs->alpha = (unsigned char)bound(0, i, 255);
1204         }
1205
1206         cs->scale = 16;
1207         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1208         if (f)
1209         {
1210                 i = (int)f;
1211                 cs->scale = (unsigned char)bound(0, i, 255);
1212         }
1213
1214         cs->glowcolor = 254;
1215         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1216         if (f)
1217                 cs->glowcolor = (int)f;
1218
1219         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1220                 cs->effects |= EF_FULLBRIGHT;
1221
1222         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1223         if (val && val->_float)
1224                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1225
1226         if (ent->fields.server->movetype == MOVETYPE_STEP)
1227                 cs->flags |= RENDER_STEP;
1228         if (cs->number != sv.writeentitiestoclient_cliententitynumber && (cs->effects & EF_LOWPRECISION) && cs->origin[0] >= -32768 && cs->origin[1] >= -32768 && cs->origin[2] >= -32768 && cs->origin[0] <= 32767 && cs->origin[1] <= 32767 && cs->origin[2] <= 32767)
1229                 cs->flags |= RENDER_LOWPRECISION;
1230         if (ent->fields.server->colormap >= 1024)
1231                 cs->flags |= RENDER_COLORMAPPED;
1232         if (cs->viewmodelforclient)
1233                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1234
1235         cs->light[0] = light[0];
1236         cs->light[1] = light[1];
1237         cs->light[2] = light[2];
1238         cs->light[3] = light[3];
1239         cs->lightstyle = lightstyle;
1240         cs->lightpflags = lightpflags;
1241
1242         cs->specialvisibilityradius = specialvisibilityradius;
1243
1244         // calculate the visible box of this entity (don't use the physics box
1245         // as that is often smaller than a model, and would not count
1246         // specialvisibilityradius)
1247         if ((model = SV_GetModelByIndex(modelindex)) && (model->type != mod_null))
1248         {
1249                 float scale = cs->scale * (1.0f / 16.0f);
1250                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1251                 {
1252                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1253                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1254                 }
1255                 else if (cs->angles[1] || ((effects | model->effects) & EF_ROTATE))
1256                 {
1257                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1258                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1259                 }
1260                 else
1261                 {
1262                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1263                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1264                 }
1265         }
1266         else
1267         {
1268                 // if there is no model (or it could not be loaded), use the physics box
1269                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1270                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1271         }
1272         if (specialvisibilityradius)
1273         {
1274                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1275                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1276                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1277                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1278                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1279                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1280         }
1281
1282         // calculate center of bbox for network prioritization purposes
1283         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1284
1285         // if culling box has moved, update pvs cluster links
1286         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1287         {
1288                 VectorCopy(cullmins, ent->priv.server->cullmins);
1289                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1290                 // a value of -1 for pvs_numclusters indicates that the links are not
1291                 // cached, and should be re-tested each time, this is the case if the
1292                 // culling box touches too many pvs clusters to store, or if the world
1293                 // model does not support FindBoxClusters
1294                 ent->priv.server->pvs_numclusters = -1;
1295                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1296                 {
1297                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1298                         if (i <= MAX_ENTITYCLUSTERS)
1299                                 ent->priv.server->pvs_numclusters = i;
1300                 }
1301         }
1302
1303         // we need to do some csqc entity upkeep here
1304         // get self.SendFlags and clear them
1305         // (to let the QC know that they've been read)
1306         if (sendentity)
1307         {
1308                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1309                 sendflags = (unsigned int)val->_float;
1310                 val->_float = 0;
1311                 // legacy self.Version system
1312                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1313                 if (val2->_float)
1314                 {
1315                         version = (unsigned int)val2->_float;
1316                         if (sv.csqcentityversion[enumber] != version)
1317                                 sendflags = 0xFFFFFF;
1318                         sv.csqcentityversion[enumber] = version;
1319                 }
1320                 // move sendflags into the per-client sendflags
1321                 if (sendflags)
1322                         for (i = 0;i < svs.maxclients;i++)
1323                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1324                 // mark it as inactive for non-csqc networking
1325                 cs->active = ACTIVE_SHARED;
1326         }
1327
1328         return true;
1329 }
1330
1331 void SV_PrepareEntitiesForSending(void)
1332 {
1333         int e;
1334         prvm_edict_t *ent;
1335         // send all entities that touch the pvs
1336         sv.numsendentities = 0;
1337         sv.sendentitiesindex[0] = NULL;
1338         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1339         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1340         {
1341                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1342                 {
1343                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1344                         sv.numsendentities++;
1345                 }
1346         }
1347 }
1348
1349 #define MAX_LINEOFSIGHTTRACES 64
1350
1351 qboolean SV_CanSeeBox(int numtraces, vec_t enlarge, vec3_t eye, vec3_t entboxmins, vec3_t entboxmaxs)
1352 {
1353         float pitchsign;
1354         float alpha;
1355         float starttransformed[3], endtransformed[3];
1356         int blocked = 0;
1357         int traceindex;
1358         int originalnumtouchedicts;
1359         int numtouchedicts = 0;
1360         int touchindex;
1361         matrix4x4_t matrix, imatrix;
1362         dp_model_t *model;
1363         prvm_edict_t *touch;
1364         static prvm_edict_t *touchedicts[MAX_EDICTS];
1365         vec3_t boxmins, boxmaxs;
1366         vec3_t clipboxmins, clipboxmaxs;
1367         vec3_t endpoints[MAX_LINEOFSIGHTTRACES];
1368
1369         numtraces = min(numtraces, MAX_LINEOFSIGHTTRACES);
1370
1371         // expand the box a little
1372         boxmins[0] = (enlarge+1) * entboxmins[0] - enlarge * entboxmaxs[0];
1373         boxmaxs[0] = (enlarge+1) * entboxmaxs[0] - enlarge * entboxmins[0];
1374         boxmins[1] = (enlarge+1) * entboxmins[1] - enlarge * entboxmaxs[1];
1375         boxmaxs[1] = (enlarge+1) * entboxmaxs[1] - enlarge * entboxmins[1];
1376         boxmins[2] = (enlarge+1) * entboxmins[2] - enlarge * entboxmaxs[2];
1377         boxmaxs[2] = (enlarge+1) * entboxmaxs[2] - enlarge * entboxmins[2];
1378
1379         VectorMAM(0.5f, boxmins, 0.5f, boxmaxs, endpoints[0]);
1380         for (traceindex = 1;traceindex < numtraces;traceindex++)
1381                 VectorSet(endpoints[traceindex], lhrandom(boxmins[0], boxmaxs[0]), lhrandom(boxmins[1], boxmaxs[1]), lhrandom(boxmins[2], boxmaxs[2]));
1382
1383         // calculate sweep box for the entire swarm of traces
1384         VectorCopy(eye, clipboxmins);
1385         VectorCopy(eye, clipboxmaxs);
1386         for (traceindex = 0;traceindex < numtraces;traceindex++)
1387         {
1388                 clipboxmins[0] = min(clipboxmins[0], endpoints[traceindex][0]);
1389                 clipboxmins[1] = min(clipboxmins[1], endpoints[traceindex][1]);
1390                 clipboxmins[2] = min(clipboxmins[2], endpoints[traceindex][2]);
1391                 clipboxmaxs[0] = max(clipboxmaxs[0], endpoints[traceindex][0]);
1392                 clipboxmaxs[1] = max(clipboxmaxs[1], endpoints[traceindex][1]);
1393                 clipboxmaxs[2] = max(clipboxmaxs[2], endpoints[traceindex][2]);
1394         }
1395
1396         // get the list of entities in the sweep box
1397         if (sv_cullentities_trace_entityocclusion.integer)
1398                 numtouchedicts = World_EntitiesInBox(&sv.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
1399         if (numtouchedicts > MAX_EDICTS)
1400         {
1401                 // this never happens
1402                 Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
1403                 numtouchedicts = MAX_EDICTS;
1404         }
1405         // iterate the entities found in the sweep box and filter them
1406         originalnumtouchedicts = numtouchedicts;
1407         numtouchedicts = 0;
1408         for (touchindex = 0;touchindex < originalnumtouchedicts;touchindex++)
1409         {
1410                 touch = touchedicts[touchindex];
1411                 if (touch->fields.server->solid != SOLID_BSP)
1412                         continue;
1413                 model = SV_GetModelFromEdict(touch);
1414                 if (!model || !model->brush.TraceLineOfSight)
1415                         continue;
1416                 // skip obviously transparent entities
1417                 alpha = PRVM_EDICTFIELDVALUE(touch, prog->fieldoffsets.alpha)->_float;
1418                 if (alpha && alpha < 1)
1419                         continue;
1420                 if ((int)touch->fields.server->effects & EF_ADDITIVE)
1421                         continue;
1422                 touchedicts[numtouchedicts++] = touch;
1423         }
1424
1425         // now that we have a filtered list of "interesting" entities, fire each
1426         // ray against all of them, this gives us an early-out case when something
1427         // is visible (which it often is)
1428
1429         for (traceindex = 0;traceindex < numtraces;traceindex++)
1430         {
1431                 // check world occlusion
1432                 if (sv.worldmodel && sv.worldmodel->brush.TraceLineOfSight)
1433                         if (!sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, eye, endpoints[traceindex]))
1434                                 continue;
1435                 for (touchindex = 0;touchindex < numtouchedicts;touchindex++)
1436                 {
1437                         touch = touchedicts[touchindex];
1438                         model = SV_GetModelFromEdict(touch);
1439                         if(model && model->brush.TraceLineOfSight)
1440                         {
1441                                 // get the entity matrix
1442                                 pitchsign = SV_GetPitchSign(touch);
1443                                 Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2], pitchsign * touch->fields.server->angles[0], touch->fields.server->angles[1], touch->fields.server->angles[2], 1);
1444                                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
1445                                 // see if the ray hits this entity
1446                                 Matrix4x4_Transform(&imatrix, eye, starttransformed);
1447                                 Matrix4x4_Transform(&imatrix, endpoints[traceindex], endtransformed);
1448                                 if (!model->brush.TraceLineOfSight(model, starttransformed, endtransformed))
1449                                 {
1450                                         blocked++;
1451                                         break;
1452                                 }
1453                         }
1454                 }
1455                 // check if the ray was blocked
1456                 if (touchindex < numtouchedicts)
1457                         continue;
1458                 // return if the ray was not blocked
1459                 return true;
1460         }
1461
1462         // no rays survived
1463         return false;
1464 }
1465
1466 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1467 {
1468         int isbmodel;
1469         dp_model_t *model;
1470         prvm_edict_t *ed;
1471         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1472                 return;
1473         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1474         sv.writeentitiestoclient_stats_totalentities++;
1475
1476         if (s->customizeentityforclient)
1477         {
1478                 prog->globals.server->self = s->number;
1479                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1480                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1481                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1482                         return;
1483         }
1484
1485         // never reject player
1486         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1487         {
1488                 // check various rejection conditions
1489                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1490                         return;
1491                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1492                         return;
1493                 if (s->effects & EF_NODRAW)
1494                         return;
1495                 // LordHavoc: only send entities with a model or important effects
1496                 if (!s->modelindex && s->specialvisibilityradius == 0)
1497                         return;
1498
1499                 isbmodel = (model = SV_GetModelByIndex(s->modelindex)) != NULL && model->name[0] == '*';
1500                 // viewmodels don't have visibility checking
1501                 if (s->viewmodelforclient)
1502                 {
1503                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1504                                 return;
1505                 }
1506                 else if (s->tagentity)
1507                 {
1508                         // tag attached entities simply check their parent
1509                         if (!sv.sendentitiesindex[s->tagentity])
1510                                 return;
1511                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1512                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1513                                 return;
1514                 }
1515                 // always send world submodels in newer protocols because they don't
1516                 // generate much traffic (in old protocols they hog bandwidth)
1517                 // but only if sv_cullentities_nevercullbmodels is off
1518                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1519                 {
1520                         // entity has survived every check so far, check if visible
1521                         ed = PRVM_EDICT_NUM(s->number);
1522
1523                         // if not touching a visible leaf
1524                         if (sv_cullentities_pvs.integer && !r_novis.integer && sv.writeentitiestoclient_pvsbytes)
1525                         {
1526                                 if (ed->priv.server->pvs_numclusters < 0)
1527                                 {
1528                                         // entity too big for clusters list
1529                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1530                                         {
1531                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1532                                                 return;
1533                                         }
1534                                 }
1535                                 else
1536                                 {
1537                                         int i;
1538                                         // check cached clusters list
1539                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1540                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1541                                                         break;
1542                                         if (i == ed->priv.server->pvs_numclusters)
1543                                         {
1544                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1545                                                 return;
1546                                         }
1547                                 }
1548                         }
1549
1550                         // or not seen by random tracelines
1551                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1552                         {
1553                                 int samples =
1554                                         s->number <= svs.maxclients
1555                                                 ? sv_cullentities_trace_samples_players.integer
1556                                                 :
1557                                         s->specialvisibilityradius
1558                                                 ? sv_cullentities_trace_samples_extra.integer
1559                                                 : sv_cullentities_trace_samples.integer;
1560                                 float enlarge = sv_cullentities_trace_enlarge.value;
1561
1562                                 if(samples > 0)
1563                                 {
1564                                         int eyeindex;
1565                                         for (eyeindex = 0;eyeindex < sv.writeentitiestoclient_numeyes;eyeindex++)
1566                                                 if(SV_CanSeeBox(samples, enlarge, sv.writeentitiestoclient_eyes[eyeindex], ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1567                                                         break;
1568                                         if(eyeindex < sv.writeentitiestoclient_numeyes)
1569                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1570                                                         realtime + (
1571                                                                 s->number <= svs.maxclients
1572                                                                         ? sv_cullentities_trace_delay_players.value
1573                                                                         : sv_cullentities_trace_delay.value
1574                                                         );
1575                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1576                                         {
1577                                                 sv.writeentitiestoclient_stats_culled_trace++;
1578                                                 return;
1579                                         }
1580                                 }
1581                         }
1582                 }
1583         }
1584
1585         // this just marks it for sending
1586         // FIXME: it would be more efficient to send here, but the entity
1587         // compressor isn't that flexible
1588         sv.writeentitiestoclient_stats_visibleentities++;
1589         sv.sententities[s->number] = sv.sententitiesmark;
1590 }
1591
1592 #if MAX_LEVELNETWORKEYES > 0
1593 #define MAX_EYE_RECURSION 1 // increase if recursion gets supported by portals
1594 void SV_AddCameraEyes(void)
1595 {
1596         int e, i, j, k;
1597         prvm_edict_t *ed;
1598         int cameras[MAX_LEVELNETWORKEYES];
1599         vec3_t camera_origins[MAX_LEVELNETWORKEYES];
1600         int eye_levels[MAX_CLIENTNETWORKEYES];
1601         int n_cameras = 0;
1602         vec3_t mi, ma;
1603         prvm_eval_t *valendpos, *val;
1604
1605         if(!prog->fieldoffsets.camera_transform)
1606                 return;
1607         valendpos = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_endpos);
1608         if(!valendpos)
1609                 return;
1610
1611         for(i = 0; i < sv.writeentitiestoclient_numeyes; ++i)
1612                 eye_levels[i] = 0;
1613
1614         // check line of sight to portal entities and add them to PVS
1615         for (e = 1, ed = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ed = PRVM_NEXT_EDICT(ed))
1616         {
1617                 if (!ed->priv.server->free)
1618                 {
1619                         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.camera_transform)) && val->function)
1620                         {
1621                                 prog->globals.server->self = e;
1622                                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1623                                 VectorCopy(sv.writeentitiestoclient_eyes[0], valendpos->vector);
1624                                 VectorCopy(sv.writeentitiestoclient_eyes[0], PRVM_G_VECTOR(OFS_PARM0));
1625                                 VectorClear(PRVM_G_VECTOR(OFS_PARM1));
1626                                 PRVM_ExecuteProgram(val->function, "QC function e.camera_transform is missing");
1627                                 if(!VectorCompare(valendpos->vector, sv.writeentitiestoclient_eyes[0]))
1628                                         VectorCopy(valendpos->vector, camera_origins[n_cameras]);
1629                                 cameras[n_cameras] = e;
1630                                 ++n_cameras;
1631                                 if(n_cameras >= MAX_LEVELNETWORKEYES)
1632                                         break;
1633                         }
1634                 }
1635         }
1636
1637         if(!n_cameras)
1638                 return;
1639
1640         // i is loop counter, is reset to 0 when an eye got added
1641         // j is camera index to check
1642         for(i = 0, j = 0; sv.writeentitiestoclient_numeyes < MAX_CLIENTNETWORKEYES && i < n_cameras; ++i, ++j, j %= n_cameras)
1643         {
1644                 if(!cameras[j])
1645                         continue;
1646                 ed = PRVM_EDICT_NUM(cameras[j]);
1647                 VectorAdd(ed->fields.server->origin, ed->fields.server->mins, mi);
1648                 VectorAdd(ed->fields.server->origin, ed->fields.server->maxs, ma);
1649                 for(k = 0; k < sv.writeentitiestoclient_numeyes; ++k)
1650                 if(eye_levels[k] <= MAX_EYE_RECURSION)
1651                 {
1652                         if(SV_CanSeeBox(sv_cullentities_trace_samples.integer, sv_cullentities_trace_enlarge.value, sv.writeentitiestoclient_eyes[k], mi, ma))
1653                         {
1654                                 eye_levels[sv.writeentitiestoclient_numeyes] = eye_levels[k] + 1;
1655                                 VectorCopy(camera_origins[j], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1656                                 // Con_Printf("added eye %d: %f %f %f because we can see %f %f %f .. %f %f %f from eye %d\n", j, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][0], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][1], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][2], mi[0], mi[1], mi[2], ma[0], ma[1], ma[2], k);
1657                                 sv.writeentitiestoclient_numeyes++;
1658                                 cameras[j] = 0;
1659                                 i = 0;
1660                                 break;
1661                         }
1662                 }
1663         }
1664 }
1665 #else
1666 void SV_AddCameraEyes(void)
1667 {
1668 }
1669 #endif
1670
1671 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1672 {
1673         qboolean need_empty = false;
1674         int i, numsendstates, numcsqcsendstates;
1675         entity_state_t *s;
1676         prvm_edict_t *camera;
1677         qboolean success;
1678         vec3_t eye;
1679
1680         // if there isn't enough space to accomplish anything, skip it
1681         if (msg->cursize + 25 > maxsize)
1682                 return;
1683
1684         sv.writeentitiestoclient_msg = msg;
1685         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1686
1687         sv.writeentitiestoclient_stats_culled_pvs = 0;
1688         sv.writeentitiestoclient_stats_culled_trace = 0;
1689         sv.writeentitiestoclient_stats_visibleentities = 0;
1690         sv.writeentitiestoclient_stats_totalentities = 0;
1691         sv.writeentitiestoclient_numeyes = 0;
1692
1693         // get eye location
1694         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1695         camera = PRVM_EDICT_NUM( client->clientcamera );
1696         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, eye);
1697         sv.writeentitiestoclient_pvsbytes = 0;
1698         // get the PVS values for the eye location, later FatPVS calls will merge
1699         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1700                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, eye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), sv.writeentitiestoclient_pvsbytes != 0);
1701
1702         // add the eye to a list for SV_CanSeeBox tests
1703         VectorCopy(eye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1704         sv.writeentitiestoclient_numeyes++;
1705
1706         // calculate predicted eye origin for SV_CanSeeBox tests
1707         if (sv_cullentities_trace_prediction.integer)
1708         {
1709                 vec_t predtime = bound(0, host_client->ping, sv_cullentities_trace_prediction_time.value);
1710                 vec3_t predeye;
1711                 VectorMA(eye, predtime, camera->fields.server->velocity, predeye);
1712                 if (SV_CanSeeBox(1, 0, eye, predeye, predeye))
1713                 {
1714                         VectorCopy(predeye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1715                         sv.writeentitiestoclient_numeyes++;
1716                 }
1717                 //if (!sv.writeentitiestoclient_useprediction)
1718                 //      Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1719         }
1720
1721         SV_AddCameraEyes();
1722
1723         // build PVS from the new eyes
1724         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1725                 for(i = 1; i < sv.writeentitiestoclient_numeyes; ++i)
1726                         sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_eyes[i], 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), sv.writeentitiestoclient_pvsbytes != 0);
1727
1728         sv.sententitiesmark++;
1729
1730         for (i = 0;i < sv.numsendentities;i++)
1731                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1732
1733         numsendstates = 0;
1734         numcsqcsendstates = 0;
1735         for (i = 0;i < sv.numsendentities;i++)
1736         {
1737                 s = &sv.sendentities[i];
1738                 if (sv.sententities[s->number] == sv.sententitiesmark)
1739                 {
1740                         if(s->active == ACTIVE_NETWORK)
1741                         {
1742                                 if (s->exteriormodelforclient)
1743                                 {
1744                                         if (s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1745                                                 s->flags |= RENDER_EXTERIORMODEL;
1746                                         else
1747                                                 s->flags &= ~RENDER_EXTERIORMODEL;
1748                                 }
1749                                 sv.writeentitiestoclient_sendstates[numsendstates++] = s;
1750                         }
1751                         else if(sv.sendentities[i].active == ACTIVE_SHARED)
1752                                 sv.writeentitiestoclient_csqcsendstates[numcsqcsendstates++] = s->number;
1753                         else
1754                                 Con_Printf("entity %d is in sv.sendentities and marked, but not active, please breakpoint me\n", s->number);
1755                 }
1756         }
1757
1758         if (sv_cullentities_stats.integer)
1759                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d trace\n", client->name, sv.writeentitiestoclient_stats_totalentities, sv.writeentitiestoclient_stats_visibleentities, sv.writeentitiestoclient_stats_culled_pvs + sv.writeentitiestoclient_stats_culled_trace, sv.writeentitiestoclient_stats_culled_pvs, sv.writeentitiestoclient_stats_culled_trace);
1760
1761         if(client->entitydatabase5)
1762                 need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, client->entitydatabase5->latestframenum + 1);
1763         else
1764                 EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, 0);
1765
1766         if(client->num_skippedentityframes >= 10)
1767                 need_empty = true; // force every 10th frame to be not empty (or cl_movement replay takes too long)
1768
1769         if (client->entitydatabase5)
1770                 success = EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
1771         else if (client->entitydatabase4)
1772         {
1773                 success = EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1774                 Protocol_WriteStatsReliable();
1775         }
1776         else if (client->entitydatabase)
1777         {
1778                 success = EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1779                 Protocol_WriteStatsReliable();
1780         }
1781         else
1782         {
1783                 success = EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1784                 Protocol_WriteStatsReliable();
1785         }
1786
1787         if(success)
1788                 client->num_skippedentityframes = 0;
1789         else
1790                 ++client->num_skippedentityframes;
1791 }
1792
1793 /*
1794 =============
1795 SV_CleanupEnts
1796
1797 =============
1798 */
1799 static void SV_CleanupEnts (void)
1800 {
1801         int             e;
1802         prvm_edict_t    *ent;
1803
1804         ent = PRVM_NEXT_EDICT(prog->edicts);
1805         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1806                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1807 }
1808
1809 /*
1810 ==================
1811 SV_WriteClientdataToMessage
1812
1813 ==================
1814 */
1815 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1816 {
1817         int             bits;
1818         int             i;
1819         prvm_edict_t    *other;
1820         int             items;
1821         prvm_eval_t     *val;
1822         vec3_t  punchvector;
1823         int             viewzoom;
1824         const char *s;
1825         float   *statsf = (float *)stats;
1826
1827 //
1828 // send a damage message
1829 //
1830         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1831         {
1832                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1833                 MSG_WriteByte (msg, svc_damage);
1834                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1835                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1836                 for (i=0 ; i<3 ; i++)
1837                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1838
1839                 ent->fields.server->dmg_take = 0;
1840                 ent->fields.server->dmg_save = 0;
1841         }
1842
1843 //
1844 // send the current viewpos offset from the view entity
1845 //
1846         SV_SetIdealPitch ();            // how much to look up / down ideally
1847
1848 // a fixangle might get lost in a dropped packet.  Oh well.
1849         if(ent->fields.server->fixangle)
1850         {
1851                 // angle fixing was requested by global thinking code...
1852                 // so store the current angles for later use
1853                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1854                 host_client->fixangle_angles_set = TRUE;
1855
1856                 // and clear fixangle for the next frame
1857                 ent->fields.server->fixangle = 0;
1858         }
1859
1860         if (host_client->fixangle_angles_set)
1861         {
1862                 MSG_WriteByte (msg, svc_setangle);
1863                 for (i=0 ; i < 3 ; i++)
1864                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1865                 host_client->fixangle_angles_set = FALSE;
1866         }
1867
1868         // stuff the sigil bits into the high bits of items for sbar, or else
1869         // mix in items2
1870         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1871         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1872                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1873         else
1874                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1875
1876         VectorClear(punchvector);
1877         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1878                 VectorCopy(val->vector, punchvector);
1879
1880         // cache weapon model name and index in client struct to save time
1881         // (this search can be almost 1% of cpu time!)
1882         s = PRVM_GetString(ent->fields.server->weaponmodel);
1883         if (strcmp(s, client->weaponmodel))
1884         {
1885                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1886                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1887         }
1888
1889         viewzoom = 255;
1890         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1891                 viewzoom = (int)(val->_float * 255.0f);
1892         if (viewzoom == 0)
1893                 viewzoom = 255;
1894
1895         bits = 0;
1896
1897         if ((int)ent->fields.server->flags & FL_ONGROUND)
1898                 bits |= SU_ONGROUND;
1899         if (ent->fields.server->waterlevel >= 2)
1900                 bits |= SU_INWATER;
1901         if (ent->fields.server->idealpitch)
1902                 bits |= SU_IDEALPITCH;
1903
1904         for (i=0 ; i<3 ; i++)
1905         {
1906                 if (ent->fields.server->punchangle[i])
1907                         bits |= (SU_PUNCH1<<i);
1908                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
1909                         if (punchvector[i])
1910                                 bits |= (SU_PUNCHVEC1<<i);
1911                 if (ent->fields.server->velocity[i])
1912                         bits |= (SU_VELOCITY1<<i);
1913         }
1914
1915         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1916         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1917         stats[STAT_ITEMS] = items;
1918         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1919         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1920         stats[STAT_WEAPON] = client->weaponmodelindex;
1921         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1922         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1923         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1924         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1925         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1926         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1927         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1928         stats[STAT_VIEWZOOM] = viewzoom;
1929         stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
1930         stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
1931         // the QC bumps these itself by sending svc_'s, so we have to keep them
1932         // zero or they'll be corrected by the engine
1933         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1934         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1935
1936         // movement settings for prediction
1937         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1938         stats[STAT_MOVEFLAGS] = MOVEFLAG_VALID
1939                 | (sv_gameplayfix_q2airaccelerate.integer ? MOVEFLAG_Q2AIRACCELERATE : 0)
1940                 | (sv_gameplayfix_nogravityonground.integer ? MOVEFLAG_NOGRAVITYONGROUND : 0)
1941                 | (sv_gameplayfix_gravityunaffectedbyticrate.integer ? MOVEFLAG_GRAVITYUNAFFECTEDBYTICRATE : 0)
1942         ;
1943         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1944         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1945         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1946         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1947         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1948         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1949         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1950         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1951         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1952         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1953         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1954         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1955         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1956         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1957         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1958         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1959         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1960         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1961         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1962         statsf[STAT_MOVEVARS_AIRSTOPACCELERATE] = sv_airstopaccelerate.value;
1963         statsf[STAT_MOVEVARS_AIRSTRAFEACCELERATE] = sv_airstrafeaccelerate.value;
1964         statsf[STAT_MOVEVARS_MAXAIRSTRAFESPEED] = sv_maxairstrafespeed.value;
1965         statsf[STAT_MOVEVARS_AIRCONTROL] = sv_aircontrol.value;
1966         statsf[STAT_MOVEVARS_AIRCONTROL_POWER] = sv_aircontrol_power.value;
1967         statsf[STAT_MOVEVARS_WARSOWBUNNY_AIRFORWARDACCEL] = sv_warsowbunny_airforwardaccel.value;
1968         statsf[STAT_MOVEVARS_WARSOWBUNNY_ACCEL] = sv_warsowbunny_accel.value;
1969         statsf[STAT_MOVEVARS_WARSOWBUNNY_TOPSPEED] = sv_warsowbunny_topspeed.value;
1970         statsf[STAT_MOVEVARS_WARSOWBUNNY_TURNACCEL] = sv_warsowbunny_turnaccel.value;
1971         statsf[STAT_MOVEVARS_WARSOWBUNNY_BACKTOSIDERATIO] = sv_warsowbunny_backtosideratio.value;
1972         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1973         statsf[STAT_TIMELIMIT] = timelimit.value;
1974
1975         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1976         {
1977                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1978                 bits |= SU_ITEMS;
1979                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1980                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1981                 bits |= SU_WEAPON;
1982                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1983                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1984                         if (viewzoom != 255)
1985                                 bits |= SU_VIEWZOOM;
1986         }
1987
1988         if (bits >= 65536)
1989                 bits |= SU_EXTEND1;
1990         if (bits >= 16777216)
1991                 bits |= SU_EXTEND2;
1992
1993         // send the data
1994         MSG_WriteByte (msg, svc_clientdata);
1995         MSG_WriteShort (msg, bits);
1996         if (bits & SU_EXTEND1)
1997                 MSG_WriteByte(msg, bits >> 16);
1998         if (bits & SU_EXTEND2)
1999                 MSG_WriteByte(msg, bits >> 24);
2000
2001         if (bits & SU_VIEWHEIGHT)
2002                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
2003
2004         if (bits & SU_IDEALPITCH)
2005                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
2006
2007         for (i=0 ; i<3 ; i++)
2008         {
2009                 if (bits & (SU_PUNCH1<<i))
2010                 {
2011                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2012                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
2013                         else
2014                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
2015                 }
2016                 if (bits & (SU_PUNCHVEC1<<i))
2017                 {
2018                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2019                                 MSG_WriteCoord16i(msg, punchvector[i]);
2020                         else
2021                                 MSG_WriteCoord32f(msg, punchvector[i]);
2022                 }
2023                 if (bits & (SU_VELOCITY1<<i))
2024                 {
2025                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2026                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
2027                         else
2028                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
2029                 }
2030         }
2031
2032         if (bits & SU_ITEMS)
2033                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
2034
2035         if (sv.protocol == PROTOCOL_DARKPLACES5)
2036         {
2037                 if (bits & SU_WEAPONFRAME)
2038                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
2039                 if (bits & SU_ARMOR)
2040                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
2041                 if (bits & SU_WEAPON)
2042                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
2043                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
2044                 MSG_WriteShort (msg, stats[STAT_AMMO]);
2045                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
2046                 MSG_WriteShort (msg, stats[STAT_NAILS]);
2047                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
2048                 MSG_WriteShort (msg, stats[STAT_CELLS]);
2049                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
2050                 if (bits & SU_VIEWZOOM)
2051                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
2052         }
2053         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2054         {
2055                 if (bits & SU_WEAPONFRAME)
2056                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
2057                 if (bits & SU_ARMOR)
2058                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
2059                 if (bits & SU_WEAPON)
2060                 {
2061                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2062                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
2063                         else
2064                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
2065                 }
2066                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
2067                 MSG_WriteByte (msg, stats[STAT_AMMO]);
2068                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
2069                 MSG_WriteByte (msg, stats[STAT_NAILS]);
2070                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
2071                 MSG_WriteByte (msg, stats[STAT_CELLS]);
2072                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
2073                 {
2074                         for (i = 0;i < 32;i++)
2075                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
2076                                         break;
2077                         MSG_WriteByte (msg, i);
2078                 }
2079                 else
2080                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
2081                 if (bits & SU_VIEWZOOM)
2082                 {
2083                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2084                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
2085                         else
2086                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
2087                 }
2088         }
2089 }
2090
2091 void SV_FlushBroadcastMessages(void)
2092 {
2093         int i;
2094         client_t *client;
2095         if (sv.datagram.cursize <= 0)
2096                 return;
2097         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2098         {
2099                 if (!client->spawned || !client->netconnection || client->unreliablemsg.cursize + sv.datagram.cursize > client->unreliablemsg.maxsize || client->unreliablemsg_splitpoints >= (int)(sizeof(client->unreliablemsg_splitpoint)/sizeof(client->unreliablemsg_splitpoint[0])))
2100                         continue;
2101                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
2102                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
2103         }
2104         SZ_Clear(&sv.datagram);
2105 }
2106
2107 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize, int maxsize2)
2108 {
2109         // scan the splitpoints to find out how many we can fit in
2110         int numsegments, j, split;
2111         if (!client->unreliablemsg_splitpoints)
2112                 return;
2113         // always accept the first one if it's within 1024 bytes, this ensures
2114         // that very big datagrams which are over the rate limit still get
2115         // through, just to keep it working
2116         for (numsegments = 1;numsegments < client->unreliablemsg_splitpoints;numsegments++)
2117                 if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
2118                         break;
2119         // the first segment gets an exemption from the rate limiting, otherwise
2120         // it could get dropped consistently due to a low rate limit
2121         if (numsegments == 1)
2122                 maxsize = maxsize2;
2123         // some will fit, so add the ones that will fit
2124         split = client->unreliablemsg_splitpoint[numsegments-1];
2125         // note this discards ones that were accepted by the segments scan but
2126         // can not fit, such as a really huge first one that will never ever
2127         // fit in a packet...
2128         if (msg->cursize + split <= maxsize)
2129                 SZ_Write(msg, client->unreliablemsg.data, split);
2130         // remove the part we sent, keeping any remaining data
2131         client->unreliablemsg.cursize -= split;
2132         if (client->unreliablemsg.cursize > 0)
2133                 memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
2134         // adjust remaining splitpoints
2135         client->unreliablemsg_splitpoints -= numsegments;
2136         for (j = 0;j < client->unreliablemsg_splitpoints;j++)
2137                 client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
2138 }
2139
2140 /*
2141 =======================
2142 SV_SendClientDatagram
2143 =======================
2144 */
2145 static void SV_SendClientDatagram (client_t *client)
2146 {
2147         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
2148         sizebuf_t msg;
2149         int stats[MAX_CL_STATS];
2150         static unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
2151
2152         // obey rate limit by limiting packet frequency if the packet size
2153         // limiting fails
2154         // (usually this is caused by reliable messages)
2155         if (!NetConn_CanSend(client->netconnection))
2156                 return;
2157
2158         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
2159         maxrate = max(NET_MINRATE, sv_maxrate.integer);
2160         if (sv_maxrate.integer != maxrate)
2161                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
2162
2163         // clientrate determines the 'cleartime' of a packet
2164         // (how long to wait before sending another, based on this packet's size)
2165         clientrate = bound(NET_MINRATE, client->rate, maxrate);
2166
2167         switch (sv.protocol)
2168         {
2169         case PROTOCOL_QUAKE:
2170         case PROTOCOL_QUAKEDP:
2171         case PROTOCOL_NEHAHRAMOVIE:
2172         case PROTOCOL_NEHAHRABJP:
2173         case PROTOCOL_NEHAHRABJP2:
2174         case PROTOCOL_NEHAHRABJP3:
2175         case PROTOCOL_QUAKEWORLD:
2176                 // no packet size limit support on Quake protocols because it just
2177                 // causes missing entities/effects
2178                 // packets are simply sent less often to obey the rate limit
2179                 maxsize = 1024;
2180                 maxsize2 = 1024;
2181                 break;
2182         case PROTOCOL_DARKPLACES1:
2183         case PROTOCOL_DARKPLACES2:
2184         case PROTOCOL_DARKPLACES3:
2185         case PROTOCOL_DARKPLACES4:
2186                 // no packet size limit support on DP1-4 protocols because they kick
2187                 // the client off if they overflow, and miss effects
2188                 // packets are simply sent less often to obey the rate limit
2189                 maxsize = sizeof(sv_sendclientdatagram_buf);
2190                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
2191                 break;
2192         default:
2193                 // DP5 and later protocols support packet size limiting which is a
2194                 // better method than limiting packet frequency as QW does
2195                 //
2196                 // at very low rates (or very small sys_ticrate) the packet size is
2197                 // not reduced below 128, but packets may be sent less often
2198                 maxsize = (int)(clientrate * sys_ticrate.value);
2199                 maxsize = bound(128, maxsize, 1400);
2200                 maxsize2 = 1400;
2201                 // csqc entities can easily exceed 128 bytes, so disable throttling in
2202                 // mods that use csqc (they are likely to use less bandwidth anyway)
2203                 if (sv.csqc_progsize > 0)
2204                         maxsize = maxsize2;
2205                 break;
2206         }
2207
2208         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
2209         {
2210                 // for good singleplayer, send huge packets
2211                 maxsize = sizeof(sv_sendclientdatagram_buf);
2212                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
2213                 // never limit frequency in singleplayer
2214                 clientrate = 1000000000;
2215         }
2216
2217         // while downloading, limit entity updates to half the packet
2218         // (any leftover space will be used for downloading)
2219         if (host_client->download_file)
2220                 maxsize /= 2;
2221
2222         msg.data = sv_sendclientdatagram_buf;
2223         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
2224         msg.cursize = 0;
2225         msg.allowoverflow = false;
2226
2227         if (host_client->spawned)
2228         {
2229                 // the player is in the game
2230                 MSG_WriteByte (&msg, svc_time);
2231                 MSG_WriteFloat (&msg, sv.time);
2232
2233                 // add the client specific data to the datagram
2234                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
2235                 // now update the stats[] array using any registered custom fields
2236                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
2237                 // set host_client->statsdeltabits
2238                 Protocol_UpdateClientStats (stats);
2239
2240                 // add as many queued unreliable messages (effects) as we can fit
2241                 // limit effects to half of the remaining space
2242                 if (client->unreliablemsg.cursize)
2243                         SV_WriteUnreliableMessages (client, &msg, maxsize/2, maxsize2);
2244
2245                 // now write as many entities as we can fit, and also sends stats
2246                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
2247         }
2248         else if (realtime > client->keepalivetime)
2249         {
2250                 // the player isn't totally in the game yet
2251                 // send small keepalive messages if too much time has passed
2252                 // (may also be sending downloads)
2253                 client->keepalivetime = realtime + 5;
2254                 MSG_WriteChar (&msg, svc_nop);
2255         }
2256
2257         // if a download is active, see if there is room to fit some download data
2258         // in this packet
2259         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
2260         if (host_client->download_file && host_client->download_started && downloadsize > 0)
2261         {
2262                 fs_offset_t downloadstart;
2263                 unsigned char data[1400];
2264                 downloadstart = FS_Tell(host_client->download_file);
2265                 downloadsize = min(downloadsize, (int)sizeof(data));
2266                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
2267                 // note this sends empty messages if at the end of the file, which is
2268                 // necessary to keep the packet loss logic working
2269                 // (the last blocks may be lost and need to be re-sent, and that will
2270                 //  only occur if the client acks the empty end messages, revealing
2271                 //  a gap in the download progress, causing the last blocks to be
2272                 //  sent again)
2273                 MSG_WriteChar (&msg, svc_downloaddata);
2274                 MSG_WriteLong (&msg, downloadstart);
2275                 MSG_WriteShort (&msg, downloadsize);
2276                 if (downloadsize > 0)
2277                         SZ_Write (&msg, data, downloadsize);
2278         }
2279
2280         // reliable only if none is in progress
2281         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
2282                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
2283         // unreliable
2284         SV_WriteDemoMessage(client, &msg, false);
2285
2286 // send the datagram
2287         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
2288         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
2289                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
2290 }
2291
2292 /*
2293 =======================
2294 SV_UpdateToReliableMessages
2295 =======================
2296 */
2297 static void SV_UpdateToReliableMessages (void)
2298 {
2299         int i, j;
2300         client_t *client;
2301         prvm_eval_t *val;
2302         const char *name;
2303         const char *model;
2304         const char *skin;
2305
2306 // check for changes to be sent over the reliable streams
2307         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2308         {
2309                 // update the host_client fields we care about according to the entity fields
2310                 host_client->edict = PRVM_EDICT_NUM(i+1);
2311
2312                 // DP_SV_CLIENTNAME
2313                 name = PRVM_GetString(host_client->edict->fields.server->netname);
2314                 if (name == NULL)
2315                         name = "";
2316                 // always point the string back at host_client->name to keep it safe
2317                 strlcpy (host_client->name, name, sizeof (host_client->name));
2318                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
2319                 if (strcmp(host_client->old_name, host_client->name))
2320                 {
2321                         if (host_client->spawned)
2322                                 SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
2323                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
2324                         // send notification to all clients
2325                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
2326                         MSG_WriteByte (&sv.reliable_datagram, i);
2327                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
2328                         SV_WriteNetnameIntoDemo(host_client);
2329                 }
2330
2331                 // DP_SV_CLIENTCOLORS
2332                 // this is always found (since it's added by the progs loader)
2333                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2334                         host_client->colors = (int)val->_float;
2335                 if (host_client->old_colors != host_client->colors)
2336                 {
2337                         host_client->old_colors = host_client->colors;
2338                         // send notification to all clients
2339                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2340                         MSG_WriteByte (&sv.reliable_datagram, i);
2341                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2342                 }
2343
2344                 // NEXUIZ_PLAYERMODEL
2345                 if( prog->fieldoffsets.playermodel >= 0 ) {
2346                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2347                         if (model == NULL)
2348                                 model = "";
2349                         // always point the string back at host_client->name to keep it safe
2350                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2351                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2352                 }
2353
2354                 // NEXUIZ_PLAYERSKIN
2355                 if( prog->fieldoffsets.playerskin >= 0 ) {
2356                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2357                         if (skin == NULL)
2358                                 skin = "";
2359                         // always point the string back at host_client->name to keep it safe
2360                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2361                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2362                 }
2363
2364                 // TODO: add an extension name for this [1/17/2008 Black]
2365                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2366                         int oldclientcamera = host_client->clientcamera;
2367                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2368                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2369                         } else {
2370                                 host_client->clientcamera = val->edict;
2371                         }
2372
2373                         if( oldclientcamera != host_client->clientcamera ) {
2374                                 MSG_WriteByte (&host_client->netconnection->message, svc_setview );
2375                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2376                         }
2377                 }
2378
2379                 // frags
2380                 host_client->frags = (int)host_client->edict->fields.server->frags;
2381                 if(gamemode == GAME_NEXUIZ)
2382                         if(!host_client->spawned && host_client->netconnection)
2383                                 host_client->frags = -666;
2384                 if (host_client->old_frags != host_client->frags)
2385                 {
2386                         host_client->old_frags = host_client->frags;
2387                         // send notification to all clients
2388                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2389                         MSG_WriteByte (&sv.reliable_datagram, i);
2390                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2391                 }
2392         }
2393
2394         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2395                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2396                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2397
2398         SZ_Clear (&sv.reliable_datagram);
2399 }
2400
2401
2402 /*
2403 =======================
2404 SV_SendClientMessages
2405 =======================
2406 */
2407 void SV_SendClientMessages (void)
2408 {
2409         int i, prepared = false;
2410
2411         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2412                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2413
2414         SV_FlushBroadcastMessages();
2415
2416 // update frags, names, etc
2417         SV_UpdateToReliableMessages();
2418
2419 // build individual updates
2420         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2421         {
2422                 if (!host_client->active)
2423                         continue;
2424                 if (!host_client->netconnection)
2425                         continue;
2426
2427                 if (host_client->netconnection->message.overflowed)
2428                 {
2429                         SV_DropClient (true);   // if the message couldn't send, kick off
2430                         continue;
2431                 }
2432
2433                 if (!prepared)
2434                 {
2435                         prepared = true;
2436                         // only prepare entities once per frame
2437                         SV_PrepareEntitiesForSending();
2438                 }
2439                 SV_SendClientDatagram (host_client);
2440         }
2441
2442 // clear muzzle flashes
2443         SV_CleanupEnts();
2444 }
2445
2446 static void SV_StartDownload_f(void)
2447 {
2448         if (host_client->download_file)
2449                 host_client->download_started = true;
2450 }
2451
2452 /*
2453  * Compression extension negotiation:
2454  *
2455  * Server to client:
2456  *   cl_serverextension_download 2
2457  *
2458  * Client to server:
2459  *   download <filename> <list of zero or more suppported compressions in order of preference>
2460  * e.g.
2461  *   download maps/map1.bsp lzo deflate huffman
2462  *
2463  * Server to client:
2464  *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
2465  * e.g.
2466  *   cl_downloadbegin 123456 maps/map1.bsp deflate
2467  *
2468  * The server may choose not to compress the file by sending no compression name, like:
2469  *   cl_downloadbegin 345678 maps/map1.bsp
2470  *
2471  * NOTE: the "download" command may only specify compression algorithms if
2472  *       cl_serverextension_download is 2!
2473  *       If cl_serverextension_download has a different value, the client must
2474  *       assume this extension is not supported!
2475  */
2476
2477 static void Download_CheckExtensions(void)
2478 {
2479         int i;
2480         int argc = Cmd_Argc();
2481
2482         // first reset them all
2483         host_client->download_deflate = false;
2484         
2485         for(i = 2; i < argc; ++i)
2486         {
2487                 if(!strcmp(Cmd_Argv(i), "deflate"))
2488                 {
2489                         host_client->download_deflate = true;
2490                         break;
2491                 }
2492         }
2493 }
2494
2495 static void SV_Download_f(void)
2496 {
2497         const char *whichpack, *whichpack2, *extension;
2498         qboolean is_csqc; // so we need to check only once
2499
2500         if (Cmd_Argc() < 2)
2501         {
2502                 SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
2503                 SV_ClientPrintf("       supported extensions: deflate\n");
2504                 return;
2505         }
2506
2507         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2508         {
2509                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2510                 return;
2511         }
2512
2513         if (host_client->download_file)
2514         {
2515                 // at this point we'll assume the previous download should be aborted
2516                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2517                 Host_ClientCommands("\nstopdownload\n");
2518
2519                 // close the file and reset variables
2520                 FS_Close(host_client->download_file);
2521                 host_client->download_file = NULL;
2522                 host_client->download_name[0] = 0;
2523                 host_client->download_expectedposition = 0;
2524                 host_client->download_started = false;
2525         }
2526
2527         is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
2528         
2529         if (!sv_allowdownloads.integer && !is_csqc)
2530         {
2531                 SV_ClientPrintf("Downloads are disabled on this server\n");
2532                 Host_ClientCommands("\nstopdownload\n");
2533                 return;
2534         }
2535
2536         Download_CheckExtensions();
2537
2538         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2539         extension = FS_FileExtension(host_client->download_name);
2540
2541         // host_client is asking to download a specified file
2542         if (developer_extra.integer)
2543                 Con_DPrintf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2544
2545         if(is_csqc)
2546         {
2547                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2548                 extensions[0] = '\0';
2549                 
2550                 if(host_client->download_deflate)
2551                         strlcat(extensions, " deflate", sizeof(extensions));
2552                 
2553                 Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2554
2555                 if(host_client->download_deflate && svs.csqc_progdata_deflated)
2556                         host_client->download_file = FS_FileFromData(svs.csqc_progdata_deflated, svs.csqc_progsize_deflated, true);
2557                 else
2558                         host_client->download_file = FS_FileFromData(svs.csqc_progdata, sv.csqc_progsize, true);
2559                 
2560                 // no, no space is needed between %s and %s :P
2561                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2562
2563                 host_client->download_expectedposition = 0;
2564                 host_client->download_started = false;
2565                 host_client->sendsignon = true; // make sure this message is sent
2566                 return;
2567         }
2568
2569         if (!FS_FileExists(host_client->download_name))
2570         {
2571                 SV_ClientPrintf("Download rejected: server does not have the file \"%s\"\nYou may need to separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
2572                 Host_ClientCommands("\nstopdownload\n");
2573                 return;
2574         }
2575
2576         // check if the user is trying to download part of registered Quake(r)
2577         whichpack = FS_WhichPack(host_client->download_name);
2578         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2579         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2580         {
2581                 SV_ClientPrintf("Download rejected: file \"%s\" is part of registered Quake(r)\nYou must purchase Quake(r) from id Software or a retailer to get this file\nPlease go to http://www.idsoftware.com/games/quake/quake/index.php?game_section=buy\n", host_client->download_name);
2582                 Host_ClientCommands("\nstopdownload\n");
2583                 return;
2584         }
2585
2586         // check if the server has forbidden archive downloads entirely
2587         if (!sv_allowdownloads_inarchive.integer)
2588         {
2589                 whichpack = FS_WhichPack(host_client->download_name);
2590                 if (whichpack)
2591                 {
2592                         SV_ClientPrintf("Download rejected: file \"%s\" is in an archive (\"%s\")\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name, whichpack);
2593                         Host_ClientCommands("\nstopdownload\n");
2594                         return;
2595                 }
2596         }
2597
2598         if (!sv_allowdownloads_config.integer)
2599         {
2600                 if (!strcasecmp(extension, "cfg"))
2601                 {
2602                         SV_ClientPrintf("Download rejected: file \"%s\" is a .cfg file which is forbidden for security reasons\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
2603                         Host_ClientCommands("\nstopdownload\n");
2604                         return;
2605                 }
2606         }
2607
2608         if (!sv_allowdownloads_dlcache.integer)
2609         {
2610                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2611                 {
2612                         SV_ClientPrintf("Download rejected: file \"%s\" is in the dlcache/ directory which is forbidden for security reasons\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
2613                         Host_ClientCommands("\nstopdownload\n");
2614                         return;
2615                 }
2616         }
2617
2618         if (!sv_allowdownloads_archive.integer)
2619         {
2620                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2621                 {
2622                         SV_ClientPrintf("Download rejected: file \"%s\" is an archive\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
2623                         Host_ClientCommands("\nstopdownload\n");
2624                         return;
2625                 }
2626         }
2627
2628         host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
2629         if (!host_client->download_file)
2630         {
2631                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2632                 Host_ClientCommands("\nstopdownload\n");
2633                 return;
2634         }
2635
2636         if (FS_FileSize(host_client->download_file) > 1<<30)
2637         {
2638                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2639                 Host_ClientCommands("\nstopdownload\n");
2640                 FS_Close(host_client->download_file);
2641                 host_client->download_file = NULL;
2642                 return;
2643         }
2644
2645         if (FS_FileSize(host_client->download_file) < 0)
2646         {
2647                 SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
2648                 Host_ClientCommands("\nstopdownload\n");
2649                 FS_Close(host_client->download_file);
2650                 host_client->download_file = NULL;
2651                 return;
2652         }
2653
2654         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2655
2656         /*
2657          * we can only do this if we would actually deflate on the fly
2658          * which we do not (yet)!
2659         {
2660                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2661                 extensions[0] = '\0';
2662                 
2663                 if(host_client->download_deflate)
2664                         strlcat(extensions, " deflate", sizeof(extensions));
2665
2666                 // no, no space is needed between %s and %s :P
2667                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2668         }
2669         */
2670         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2671
2672         host_client->download_expectedposition = 0;
2673         host_client->download_started = false;
2674         host_client->sendsignon = true; // make sure this message is sent
2675
2676         // the rest of the download process is handled in SV_SendClientDatagram
2677         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2678         //
2679         // no svc_downloaddata messages will be sent until sv_startdownload is
2680         // sent by the client
2681 }
2682
2683 /*
2684 ==============================================================================
2685
2686 SERVER SPAWNING
2687
2688 ==============================================================================
2689 */
2690
2691 /*
2692 ================
2693 SV_ModelIndex
2694
2695 ================
2696 */
2697 int SV_ModelIndex(const char *s, int precachemode)
2698 {
2699         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_MODELS);
2700         char filename[MAX_QPATH];
2701         if (!s || !*s)
2702                 return 0;
2703         // testing
2704         //if (precachemode == 2)
2705         //      return 0;
2706         strlcpy(filename, s, sizeof(filename));
2707         for (i = 2;i < limit;i++)
2708         {
2709                 if (!sv.model_precache[i][0])
2710                 {
2711                         if (precachemode)
2712                         {
2713                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2714                                 {
2715                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2716                                         return 0;
2717                                 }
2718                                 if (precachemode == 1)
2719                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2720                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2721                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, s[0] == '*' ? sv.modelname : NULL);
2722                                 if (sv.state != ss_loading)
2723                                 {
2724                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2725                                         MSG_WriteShort(&sv.reliable_datagram, i);
2726                                         MSG_WriteString(&sv.reliable_datagram, filename);
2727                                 }
2728                                 return i;
2729                         }
2730                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2731                         return 0;
2732                 }
2733                 if (!strcmp(sv.model_precache[i], filename))
2734                         return i;
2735         }
2736         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2737         return 0;
2738 }
2739
2740 /*
2741 ================
2742 SV_SoundIndex
2743
2744 ================
2745 */
2746 int SV_SoundIndex(const char *s, int precachemode)
2747 {
2748         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_SOUNDS);
2749         char filename[MAX_QPATH];
2750         if (!s || !*s)
2751                 return 0;
2752         // testing
2753         //if (precachemode == 2)
2754         //      return 0;
2755         strlcpy(filename, s, sizeof(filename));
2756         for (i = 1;i < limit;i++)
2757         {
2758                 if (!sv.sound_precache[i][0])
2759                 {
2760                         if (precachemode)
2761                         {
2762                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2763                                 {
2764                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2765                                         return 0;
2766                                 }
2767                                 if (precachemode == 1)
2768                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2769                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2770                                 if (sv.state != ss_loading)
2771                                 {
2772                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2773                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2774                                         MSG_WriteString(&sv.reliable_datagram, filename);
2775                                 }
2776                                 return i;
2777                         }
2778                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2779                         return 0;
2780                 }
2781                 if (!strcmp(sv.sound_precache[i], filename))
2782                         return i;
2783         }
2784         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2785         return 0;
2786 }
2787
2788 /*
2789 ================
2790 SV_ParticleEffectIndex
2791
2792 ================
2793 */
2794 int SV_ParticleEffectIndex(const char *name)
2795 {
2796         int i, argc, linenumber, effectnameindex;
2797         int filepass;
2798         fs_offset_t filesize;
2799         unsigned char *filedata;
2800         const char *text;
2801         const char *textstart;
2802         //const char *textend;
2803         char argv[16][1024];
2804         char filename[MAX_QPATH];
2805         if (!sv.particleeffectnamesloaded)
2806         {
2807                 sv.particleeffectnamesloaded = true;
2808                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2809                 for (i = 0;i < EFFECT_TOTAL;i++)
2810                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2811                 for (filepass = 0;;filepass++)
2812                 {
2813                         if (filepass == 0)
2814                                 dpsnprintf(filename, sizeof(filename), "effectinfo.txt");
2815                         else if (filepass == 1)
2816                                 dpsnprintf(filename, sizeof(filename), "maps/%s_effectinfo.txt", sv.name);
2817                         else
2818                                 break;
2819                         filedata = FS_LoadFile(filename, tempmempool, true, &filesize);
2820                         if (!filedata)
2821                                 continue;
2822                         textstart = (const char *)filedata;
2823                         //textend = (const char *)filedata + filesize;
2824                         text = textstart;
2825                         for (linenumber = 1;;linenumber++)
2826                         {
2827                                 argc = 0;
2828                                 for (;;)
2829                                 {
2830                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2831                                                 break;
2832                                         if (argc < 16)
2833                                         {
2834                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2835                                                 argc++;
2836                                         }
2837                                 }
2838                                 if (com_token[0] == 0)
2839                                         break; // if the loop exited and it's not a \n, it's EOF
2840                                 if (argc < 1)
2841                                         continue;
2842                                 if (!strcmp(argv[0], "effect"))
2843                                 {
2844                                         if (argc == 2)
2845                                         {
2846                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2847                                                 {
2848                                                         if (sv.particleeffectname[effectnameindex][0])
2849                                                         {
2850                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2851                                                                         break;
2852                                                         }
2853                                                         else
2854                                                         {
2855                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2856                                                                 break;
2857                                                         }
2858                                                 }
2859                                                 // if we run out of names, abort
2860                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2861                                                 {
2862                                                         Con_Printf("%s:%i: too many effects!\n", filename, linenumber);
2863                                                         break;
2864                                                 }
2865                                         }
2866                                 }
2867                         }
2868                         Mem_Free(filedata);
2869                 }
2870         }
2871         // search for the name
2872         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2873                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2874                         return effectnameindex;
2875         // return 0 if we couldn't find it
2876         return 0;
2877 }
2878
2879 dp_model_t *SV_GetModelByIndex(int modelindex)
2880 {
2881         return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
2882 }
2883
2884 dp_model_t *SV_GetModelFromEdict(prvm_edict_t *ed)
2885 {
2886         int modelindex;
2887         if (!ed || ed->priv.server->free)
2888                 return NULL;
2889         modelindex = (int)ed->fields.server->modelindex;
2890         return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
2891 }
2892
2893 /*
2894 ================
2895 SV_CreateBaseline
2896
2897 ================
2898 */
2899 static void SV_CreateBaseline (void)
2900 {
2901         int i, entnum, large;
2902         prvm_edict_t *svent;
2903
2904         // LordHavoc: clear *all* states (note just active ones)
2905         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2906         {
2907                 // get the current server version
2908                 svent = PRVM_EDICT_NUM(entnum);
2909
2910                 // LordHavoc: always clear state values, whether the entity is in use or not
2911                 svent->priv.server->baseline = defaultstate;
2912
2913                 if (svent->priv.server->free)
2914                         continue;
2915                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2916                         continue;
2917
2918                 // create entity baseline
2919                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2920                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2921                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2922                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2923                 if (entnum > 0 && entnum <= svs.maxclients)
2924                 {
2925                         svent->priv.server->baseline.colormap = entnum;
2926                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2927                 }
2928                 else
2929                 {
2930                         svent->priv.server->baseline.colormap = 0;
2931                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2932                 }
2933
2934                 large = false;
2935                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2936                 {
2937                         large = true;
2938                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2939                                 large = false;
2940                 }
2941
2942                 // add to the message
2943                 if (large)
2944                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2945                 else
2946                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2947                 MSG_WriteShort (&sv.signon, entnum);
2948
2949                 if (large)
2950                 {
2951                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2952                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2953                 }
2954                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2955                 {
2956                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2957                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2958                 }
2959                 else
2960                 {
2961                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2962                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2963                 }
2964                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2965                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2966                 for (i=0 ; i<3 ; i++)
2967                 {
2968                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2969                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2970                 }
2971         }
2972 }
2973
2974 /*
2975 ================
2976 SV_Prepare_CSQC
2977
2978 Load csprogs.dat and comperss it so it doesn't need to be
2979 reloaded on request.
2980 ================
2981 */
2982 void SV_Prepare_CSQC(void)
2983 {
2984         fs_offset_t progsize;
2985
2986         if(svs.csqc_progdata)
2987         {
2988                 Con_DPrintf("Unloading old CSQC data.\n");
2989                 Mem_Free(svs.csqc_progdata);
2990                 if(svs.csqc_progdata_deflated)
2991                         Mem_Free(svs.csqc_progdata_deflated);
2992         }
2993
2994         svs.csqc_progdata = NULL;
2995         svs.csqc_progdata_deflated = NULL;
2996         
2997         sv.csqc_progname[0] = 0;
2998         svs.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
2999
3000         if(progsize > 0)
3001         {
3002                 size_t deflated_size;
3003
3004                 sv.csqc_progsize = (int)progsize;
3005                 sv.csqc_progcrc = CRC_Block(svs.csqc_progdata, progsize);
3006                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
3007                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
3008
3009                 Con_DPrint("Compressing csprogs.dat\n");
3010                 //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
3011                 svs.csqc_progdata_deflated = FS_Deflate(svs.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
3012                 svs.csqc_progsize_deflated = (int)deflated_size;
3013                 if(svs.csqc_progdata_deflated)
3014                 {
3015                         Con_DPrintf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
3016                         Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)svs.csqc_progsize_deflated);
3017                 }
3018                 else
3019                         Con_DPrintf("Cannot compress - need zlib for this. Using uncompressed progs only.\n");
3020         }
3021 }
3022
3023 /*
3024 ================
3025 SV_SaveSpawnparms
3026
3027 Grabs the current state of each client for saving across the
3028 transition to another level
3029 ================
3030 */
3031 void SV_SaveSpawnparms (void)
3032 {
3033         int             i, j;
3034
3035         svs.serverflags = (int)prog->globals.server->serverflags;
3036
3037         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3038         {
3039                 if (!host_client->active)
3040                         continue;
3041
3042         // call the progs to get default spawn parms for the new client
3043                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
3044                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
3045                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
3046                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
3047         }
3048 }
3049
3050 /*
3051 ================
3052 SV_SpawnServer
3053
3054 This is called at the start of each level
3055 ================
3056 */
3057
3058 void SV_SpawnServer (const char *server)
3059 {
3060         prvm_edict_t *ent;
3061         int i;
3062         char *entities;
3063         dp_model_t *worldmodel;
3064         char modelname[sizeof(sv.modelname)];
3065
3066         Con_DPrintf("SpawnServer: %s\n", server);
3067
3068         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
3069
3070         if (!FS_FileExists(modelname))
3071         {
3072                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
3073                 return;
3074         }
3075
3076         if (cls.state != ca_dedicated)
3077         {
3078                 SCR_BeginLoadingPlaque();
3079                 S_StopAllSounds();
3080         }
3081
3082         if(sv.active)
3083         {
3084                 SV_VM_Begin();
3085                 World_End(&sv.world);
3086                 if(prog->funcoffsets.SV_Shutdown)
3087                 {
3088                         func_t s = prog->funcoffsets.SV_Shutdown;
3089                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
3090                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
3091                 }
3092                 SV_VM_End();
3093         }
3094
3095         // free q3 shaders so that any newly downloaded shaders will be active
3096         Mod_FreeQ3Shaders();
3097
3098         worldmodel = Mod_ForName(modelname, false, developer.integer > 0, NULL);
3099         if (!worldmodel || !worldmodel->TraceBox)
3100         {
3101                 Con_Printf("Couldn't load map %s\n", modelname);
3102                 return;
3103         }
3104
3105         // let's not have any servers with no name
3106         if (hostname.string[0] == 0)
3107                 Cvar_Set ("hostname", "UNNAMED");
3108         scr_centertime_off = 0;
3109
3110         svs.changelevel_issued = false;         // now safe to issue another
3111
3112         // make the map a required file for clients
3113         Curl_ClearRequirements();
3114         Curl_RequireFile(modelname);
3115
3116 //
3117 // tell all connected clients that we are going to a new level
3118 //
3119         if (sv.active)
3120         {
3121                 client_t *client;
3122                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
3123                 {
3124                         if (client->netconnection)
3125                         {
3126                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
3127                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
3128                         }
3129                 }
3130         }
3131         else
3132         {
3133                 // open server port
3134                 NetConn_OpenServerPorts(true);
3135         }
3136
3137 //
3138 // make cvars consistant
3139 //
3140         if (coop.integer)
3141                 Cvar_SetValue ("deathmatch", 0);
3142         // LordHavoc: it can be useful to have skills outside the range 0-3...
3143         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
3144         //Cvar_SetValue ("skill", (float)current_skill);
3145         current_skill = (int)(skill.value + 0.5);
3146
3147 //
3148 // set up the new server
3149 //
3150         memset (&sv, 0, sizeof(sv));
3151         // if running a local client, make sure it doesn't try to access the last
3152         // level's data which is no longer valiud
3153         cls.signon = 0;
3154
3155         Cvar_SetValue("halflifebsp", worldmodel->brush.ishlbsp);
3156
3157         if(*sv_random_seed.string)
3158         {
3159                 srand(sv_random_seed.integer);
3160                 Con_Printf("NOTE: random seed is %d; use for debugging/benchmarking only!\nUnset sv_random_seed to get real random numbers again.\n", sv_random_seed.integer);
3161         }
3162
3163         SV_VM_Setup();
3164
3165         sv.active = true;
3166
3167         strlcpy (sv.name, server, sizeof (sv.name));
3168
3169         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
3170         if (sv.protocol == PROTOCOL_UNKNOWN)
3171         {
3172                 char buffer[1024];
3173                 Protocol_Names(buffer, sizeof(buffer));
3174                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
3175                 sv.protocol = PROTOCOL_QUAKE;
3176         }
3177
3178         SV_VM_Begin();
3179
3180 // load progs to get entity field count
3181         //PR_LoadProgs ( sv_progs.string );
3182
3183         sv.datagram.maxsize = sizeof(sv.datagram_buf);
3184         sv.datagram.cursize = 0;
3185         sv.datagram.data = sv.datagram_buf;
3186
3187         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
3188         sv.reliable_datagram.cursize = 0;
3189         sv.reliable_datagram.data = sv.reliable_datagram_buf;
3190
3191         sv.signon.maxsize = sizeof(sv.signon_buf);
3192         sv.signon.cursize = 0;
3193         sv.signon.data = sv.signon_buf;
3194
3195 // leave slots at start for clients only
3196         //prog->num_edicts = svs.maxclients+1;
3197
3198         sv.state = ss_loading;
3199         prog->allowworldwrites = true;
3200         sv.paused = false;
3201
3202         prog->globals.server->time = sv.time = 1.0;
3203
3204         Mod_ClearUsed();
3205         worldmodel->used = true;
3206
3207         strlcpy (sv.name, server, sizeof (sv.name));
3208         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
3209         sv.worldmodel = worldmodel;
3210         sv.models[1] = sv.worldmodel;
3211
3212 //
3213 // clear world interaction links
3214 //
3215         World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
3216         World_Start(&sv.world);
3217
3218         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
3219
3220         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
3221         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
3222         for (i = 1;i < sv.worldmodel->brush.numsubmodels && i+1 < MAX_MODELS;i++)
3223         {
3224                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
3225                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, sv.modelname);
3226         }
3227         if(i < sv.worldmodel->brush.numsubmodels)
3228                 Con_Printf("Too many submodels (MAX_MODELS is %i)\n", MAX_MODELS);
3229
3230 //
3231 // load the rest of the entities
3232 //
3233         // AK possible hack since num_edicts is still 0
3234         ent = PRVM_EDICT_NUM(0);
3235         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
3236         ent->priv.server->free = false;
3237         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
3238         ent->fields.server->modelindex = 1;             // world model
3239         ent->fields.server->solid = SOLID_BSP;
3240         ent->fields.server->movetype = MOVETYPE_PUSH;
3241         VectorCopy(sv.world.mins, ent->fields.server->mins);
3242         VectorCopy(sv.world.maxs, ent->fields.server->maxs);
3243         VectorCopy(sv.world.mins, ent->fields.server->absmin);
3244         VectorCopy(sv.world.maxs, ent->fields.server->absmax);
3245
3246         if (coop.value)
3247                 prog->globals.server->coop = coop.integer;
3248         else
3249                 prog->globals.server->deathmatch = deathmatch.integer;
3250
3251         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
3252
3253 // serverflags are for cross level information (sigils)
3254         prog->globals.server->serverflags = svs.serverflags;
3255
3256         // we need to reset the spawned flag on all connected clients here so that
3257         // their thinks don't run during startup (before PutClientInServer)
3258         // we also need to set up the client entities now
3259         // and we need to set the ->edict pointers to point into the progs edicts
3260         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3261         {
3262                 host_client->spawned = false;
3263                 host_client->edict = PRVM_EDICT_NUM(i + 1);
3264                 PRVM_ED_ClearEdict(host_client->edict);
3265         }
3266
3267         // load replacement entity file if found
3268         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
3269         {
3270                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
3271                 PRVM_ED_LoadFromFile (entities);
3272                 Mem_Free(entities);
3273         }
3274         else
3275                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
3276
3277
3278         // LordHavoc: clear world angles (to fix e3m3.bsp)
3279         VectorClear(prog->edicts->fields.server->angles);
3280
3281 // all setup is completed, any further precache statements are errors
3282 //      sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
3283         prog->allowworldwrites = false;
3284
3285 // run two frames to allow everything to settle
3286         prog->globals.server->time = sv.time = 1.0001;
3287         for (i = 0;i < 2;i++)
3288         {
3289                 sv.frametime = 0.1;
3290                 SV_Physics ();
3291         }
3292
3293         if (cls.state == ca_dedicated)
3294                 Mod_PurgeUnused();
3295
3296 // create a baseline for more efficient communications
3297         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
3298                 SV_CreateBaseline ();
3299
3300         sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
3301
3302         // to prevent network timeouts
3303         realtime = Sys_DoubleTime();
3304         
3305 // send serverinfo to all connected clients, and set up botclients coming back from a level change
3306         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3307         {
3308                 host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
3309                 if (!host_client->active)
3310                         continue;
3311                 if (host_client->netconnection)
3312                         SV_SendServerinfo(host_client);
3313                 else
3314                 {
3315                         int j;
3316                         // if client is a botclient coming from a level change, we need to
3317                         // set up client info that normally requires networking
3318
3319                         // copy spawn parms out of the client_t
3320                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
3321                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
3322
3323                         // call the spawn function
3324                         host_client->clientconnectcalled = true;
3325                         prog->globals.server->time = sv.time;
3326                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
3327                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
3328                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
3329                         host_client->spawned = true;
3330                 }
3331         }
3332
3333         Con_DPrint("Server spawned.\n");
3334         NetConn_Heartbeat (2);
3335
3336         SV_VM_End();
3337 }
3338
3339 /////////////////////////////////////////////////////
3340 // SV VM stuff
3341
3342 static void SV_VM_CB_BeginIncreaseEdicts(void)
3343 {
3344         // links don't survive the transition, so unlink everything
3345         World_UnlinkAll(&sv.world);
3346 }
3347
3348 static void SV_VM_CB_EndIncreaseEdicts(void)
3349 {
3350         int i;
3351         prvm_edict_t *ent;
3352
3353         // link every entity except world
3354         for (i = 1, ent = prog->edicts;i < prog->num_edicts;i++, ent++)
3355                 if (!ent->priv.server->free)
3356                         SV_LinkEdict(ent);
3357 }
3358
3359 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
3360 {
3361         // LordHavoc: for consistency set these here
3362         int num = PRVM_NUM_FOR_EDICT(e) - 1;
3363
3364         e->priv.server->move = false; // don't move on first frame
3365
3366         if (num >= 0 && num < svs.maxclients)
3367         {
3368                 prvm_eval_t *val;
3369                 // set colormap and team on newly created player entity
3370                 e->fields.server->colormap = num + 1;
3371                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
3372                 // set netname/clientcolors back to client values so that
3373                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
3374                 // reset them
3375                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
3376                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
3377                         val->_float = svs.clients[num].colors;
3378                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
3379                 if( prog->fieldoffsets.playermodel >= 0 )
3380                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
3381                 if( prog->fieldoffsets.playerskin >= 0 )
3382                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
3383                 // Assign netaddress (IP Address, etc)
3384                 if(prog->fieldoffsets.netaddress >= 0)
3385                 { // Valid Field; Process
3386                         if(svs.clients[num].netconnection != NULL)
3387                         {// Valid Address; Assign
3388                                 // Acquire Readable Address
3389                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
3390                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
3391                         }
3392                         else
3393                                 // Invalid / Bot
3394                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
3395                 }
3396         }
3397 }
3398
3399 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
3400 {
3401         int i;
3402         int e;
3403
3404         World_UnlinkEdict(ed);          // unlink from world bsp
3405
3406         ed->fields.server->model = 0;
3407         ed->fields.server->takedamage = 0;
3408         ed->fields.server->modelindex = 0;
3409         ed->fields.server->colormap = 0;
3410         ed->fields.server->skin = 0;
3411         ed->fields.server->frame = 0;
3412         VectorClear(ed->fields.server->origin);
3413         VectorClear(ed->fields.server->angles);
3414         ed->fields.server->nextthink = -1;
3415         ed->fields.server->solid = 0;
3416
3417         VM_RemoveEdictSkeleton(ed);
3418         World_Physics_RemoveFromEntity(&sv.world, ed);
3419         World_Physics_RemoveJointFromEntity(&sv.world, ed);
3420
3421         // make sure csqc networking is aware of the removed entity
3422         e = PRVM_NUM_FOR_EDICT(ed);
3423         sv.csqcentityversion[e] = 0;
3424         for (i = 0;i < svs.maxclients;i++)
3425         {
3426                 if (svs.clients[i].csqcentityscope[e])
3427                         svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
3428                 svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
3429         }
3430 }
3431
3432 static void SV_VM_CB_CountEdicts(void)
3433 {
3434         int             i;
3435         prvm_edict_t    *ent;
3436         int             active, models, solid, step;
3437
3438         active = models = solid = step = 0;
3439         for (i=0 ; i<prog->num_edicts ; i++)
3440         {
3441                 ent = PRVM_EDICT_NUM(i);
3442                 if (ent->priv.server->free)
3443                         continue;
3444                 active++;
3445                 if (ent->fields.server->solid)
3446                         solid++;
3447                 if (ent->fields.server->model)
3448                         models++;
3449                 if (ent->fields.server->movetype == MOVETYPE_STEP)
3450                         step++;
3451         }
3452
3453         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
3454         Con_Printf("active    :%3i\n", active);
3455         Con_Printf("view      :%3i\n", models);
3456         Con_Printf("touch     :%3i\n", solid);
3457         Con_Printf("step      :%3i\n", step);
3458 }
3459
3460 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
3461 {
3462         // remove things from different skill levels or deathmatch
3463         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
3464         {
3465                 if (deathmatch.integer)
3466                 {
3467                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
3468                         {
3469                                 return false;
3470                         }
3471                 }
3472                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
3473                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
3474                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
3475                 {
3476                         return false;
3477                 }
3478         }
3479         return true;
3480 }
3481
3482 static void SV_VM_Setup(void)
3483 {
3484         PRVM_Begin;
3485         PRVM_InitProg( PRVM_SERVERPROG );
3486
3487         // allocate the mempools
3488         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
3489         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
3490         prog->builtins = vm_sv_builtins;
3491         prog->numbuiltins = vm_sv_numbuiltins;
3492         prog->headercrc = PROGHEADER_CRC;
3493         prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
3494         prog->max_edicts = 512;
3495         if (sv.protocol == PROTOCOL_QUAKE)
3496                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
3497         else if (sv.protocol == PROTOCOL_QUAKEDP)
3498                 prog->limit_edicts = 2048; // guessing
3499         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
3500                 prog->limit_edicts = 2048; // guessing!
3501         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
3502                 prog->limit_edicts = 4096; // guessing!
3503         else
3504                 prog->limit_edicts = MAX_EDICTS;
3505         prog->reserved_edicts = svs.maxclients;
3506         prog->edictprivate_size = sizeof(edict_engineprivate_t);
3507         prog->name = "server";
3508         prog->extensionstring = vm_sv_extensions;
3509         prog->loadintoworld = true;
3510
3511         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
3512         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
3513         prog->init_edict = SV_VM_CB_InitEdict;
3514         prog->free_edict = SV_VM_CB_FreeEdict;
3515         prog->count_edicts = SV_VM_CB_CountEdicts;
3516         prog->load_edict = SV_VM_CB_LoadEdict;
3517         prog->init_cmd = VM_SV_Cmd_Init;
3518         prog->reset_cmd = VM_SV_Cmd_Reset;
3519         prog->error_cmd = Host_Error;
3520         prog->ExecuteProgram = SVVM_ExecuteProgram;
3521
3522         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
3523         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
3524
3525         // some mods compiled with scrambling compilers lack certain critical
3526         // global names and field names such as "self" and "time" and "nextthink"
3527         // so we have to set these offsets manually, matching the entvars_t
3528         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
3529         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
3530         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
3531         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
3532         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
3533         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
3534         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
3535         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
3536         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
3537         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
3538         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
3539         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
3540         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
3541         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
3542         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
3543         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
3544         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
3545         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
3546         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
3547         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
3548         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
3549         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
3550         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
3551         // OP_STATE is always supported on server (due to entvars_t)
3552         prog->flag |= PRVM_OP_STATE;
3553
3554         VM_CustomStats_Clear();//[515]: csqc
3555
3556         PRVM_End;
3557
3558         SV_Prepare_CSQC();
3559 }
3560
3561 void SV_VM_Begin(void)
3562 {
3563         PRVM_Begin;
3564         PRVM_SetProg( PRVM_SERVERPROG );
3565
3566         prog->globals.server->time = (float) sv.time;
3567 }
3568
3569 void SV_VM_End(void)
3570 {
3571         PRVM_End;
3572 }