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