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