don't overflow 1024 byte buffer on quake protocol, this often happens
[divverent/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 "libcurl.h"
24
25 static void SV_SaveEntFile_f(void);
26 static void SV_StartDownload_f(void);
27 static void SV_Download_f(void);
28 static void SV_VM_Setup();
29
30 void VM_CustomStats_Clear (void);
31 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
32 void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int numstates, const entity_state_t *states);
33
34 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)"};
35 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)"};
36 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
37 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
38 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
39 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
40 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
41 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)"};
42 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
43 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)"};
44 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
45
46 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
47 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"};
48 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
49 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
50 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"};
51 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
52 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
53 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
54 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
55 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
56 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"};
57 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"};
58 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"};
59 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)"};
60 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)"};
61 cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "16", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
62 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!)"};
63 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
64 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
65 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"};
66 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
67 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
68 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
69 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
70 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"};
71 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
72 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
73 cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
74 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)"};
75 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "0", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
76 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
77 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
78 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"};
79 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)"};
80 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"};
81 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
82 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"};
83 cvar_t sv_gameplayfix_qwplayerphysics = {0, "sv_gameplayfix_qwplayerphysics", "1", "changes water jumping to make it easier to get out of water, and prevents friction on landing when bunnyhopping"};
84 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"};
85 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)"};
86 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)"};
87 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"};
88 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"};
89 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
90 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
91 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
92 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
93 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)"};
94 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
95 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
96 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
97 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
98 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
99 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
100 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
101 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
102 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"};
103 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)"};
104 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)"};
105 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)"};
106 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
107 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
108 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
109 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"};
110 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"};
111 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.05", "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)"};
112 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"};
113 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
114
115 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
116 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
117 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
118 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
119 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
120 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
121 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
122 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
123 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
124 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)"};
125
126 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
127 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
128 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
129 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
130 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
131 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
132 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
133 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
134 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
135 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
136 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
137 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
138 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
139 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
140 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
141 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
142 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
143 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
144 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
145 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
146 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
147
148 server_t sv;
149 server_static_t svs;
150
151 mempool_t *sv_mempool = NULL;
152
153 extern cvar_t slowmo;
154 extern float            scr_centertime_off;
155
156 // MUST match effectnameindex_t in client.h
157 static const char *standardeffectnames[EFFECT_TOTAL] =
158 {
159         "",
160         "TE_GUNSHOT",
161         "TE_GUNSHOTQUAD",
162         "TE_SPIKE",
163         "TE_SPIKEQUAD",
164         "TE_SUPERSPIKE",
165         "TE_SUPERSPIKEQUAD",
166         "TE_WIZSPIKE",
167         "TE_KNIGHTSPIKE",
168         "TE_EXPLOSION",
169         "TE_EXPLOSIONQUAD",
170         "TE_TAREXPLOSION",
171         "TE_TELEPORT",
172         "TE_LAVASPLASH",
173         "TE_SMALLFLASH",
174         "TE_FLAMEJET",
175         "EF_FLAME",
176         "TE_BLOOD",
177         "TE_SPARK",
178         "TE_PLASMABURN",
179         "TE_TEI_G3",
180         "TE_TEI_SMOKE",
181         "TE_TEI_BIGEXPLOSION",
182         "TE_TEI_PLASMAHIT",
183         "EF_STARDUST",
184         "TR_ROCKET",
185         "TR_GRENADE",
186         "TR_BLOOD",
187         "TR_WIZSPIKE",
188         "TR_SLIGHTBLOOD",
189         "TR_KNIGHTSPIKE",
190         "TR_VORESPIKE",
191         "TR_NEHAHRASMOKE",
192         "TR_NEXUIZPLASMA",
193         "TR_GLOWTRAIL",
194         "SVC_PARTICLE"
195 };
196
197 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
198
199 prvm_required_field_t reqfields[] =
200 {
201         {ev_entity, "cursor_trace_ent"},
202         {ev_entity, "drawonlytoclient"},
203         {ev_entity, "exteriormodeltoclient"},
204         {ev_entity, "nodrawtoclient"},
205         {ev_entity, "tag_entity"},
206         {ev_entity, "viewmodelforclient"},
207         {ev_float, "Version"},
208         {ev_float, "alpha"},
209         {ev_float, "ammo_cells1"},
210         {ev_float, "ammo_lava_nails"},
211         {ev_float, "ammo_multi_rockets"},
212         {ev_float, "ammo_nails1"},
213         {ev_float, "ammo_plasma"},
214         {ev_float, "ammo_rockets1"},
215         {ev_float, "ammo_shells1"},
216         {ev_float, "button3"},
217         {ev_float, "button4"},
218         {ev_float, "button5"},
219         {ev_float, "button6"},
220         {ev_float, "button7"},
221         {ev_float, "button8"},
222         {ev_float, "button9"},
223         {ev_float, "button10"},
224         {ev_float, "button11"},
225         {ev_float, "button12"},
226         {ev_float, "button13"},
227         {ev_float, "button14"},
228         {ev_float, "button15"},
229         {ev_float, "button16"},
230         {ev_float, "buttonchat"},
231         {ev_float, "buttonuse"},
232         {ev_float, "clientcolors"},
233         {ev_float, "cursor_active"},
234         {ev_float, "disableclientprediction"},
235         {ev_float, "fullbright"},
236         {ev_float, "glow_color"},
237         {ev_float, "glow_size"},
238         {ev_float, "glow_trail"},
239         {ev_float, "gravity"},
240         {ev_float, "idealpitch"},
241         {ev_float, "items2"},
242         {ev_float, "light_lev"},
243         {ev_float, "modelflags"},
244         {ev_float, "pflags"},
245         {ev_float, "ping"},
246         {ev_float, "pitch_speed"},
247         {ev_float, "pmodel"},
248         {ev_float, "renderamt"}, // HalfLife support
249         {ev_float, "rendermode"}, // HalfLife support
250         {ev_float, "scale"},
251         {ev_float, "style"},
252         {ev_float, "tag_index"},
253         {ev_float, "viewzoom"},
254         {ev_function, "SendEntity"},
255         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
256         {ev_function, "customizeentityforclient"},
257         {ev_string, "netaddress"},
258         {ev_string, "playermodel"},
259         {ev_string, "playerskin"},
260         {ev_vector, "color"},
261         {ev_vector, "colormod"},
262         {ev_vector, "cursor_screen"},
263         {ev_vector, "cursor_trace_endpos"},
264         {ev_vector, "cursor_trace_start"},
265         {ev_vector, "movement"},
266         {ev_vector, "punchvector"},
267 };
268
269
270
271 //============================================================================
272
273 void SV_AreaStats_f(void)
274 {
275         World_PrintAreaStats(&sv.world, "server");
276 }
277
278 /*
279 ===============
280 SV_Init
281 ===============
282 */
283 void SV_Init (void)
284 {
285         // init the csqc progs cvars, since they are updated/used by the server code
286         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
287         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
288         extern cvar_t csqc_progcrc;
289         extern cvar_t csqc_progsize;
290         Cvar_RegisterVariable (&csqc_progname);
291         Cvar_RegisterVariable (&csqc_progcrc);
292         Cvar_RegisterVariable (&csqc_progsize);
293
294         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
295         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
296         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
297         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
298
299         Cvar_RegisterVariable (&coop);
300         Cvar_RegisterVariable (&deathmatch);
301         Cvar_RegisterVariable (&fraglimit);
302         Cvar_RegisterVariable (&gamecfg);
303         Cvar_RegisterVariable (&noexit);
304         Cvar_RegisterVariable (&nomonsters);
305         Cvar_RegisterVariable (&pausable);
306         Cvar_RegisterVariable (&pr_checkextension);
307         Cvar_RegisterVariable (&samelevel);
308         Cvar_RegisterVariable (&skill);
309         Cvar_RegisterVariable (&slowmo);
310         Cvar_RegisterVariable (&sv_accelerate);
311         Cvar_RegisterVariable (&sv_aim);
312         Cvar_RegisterVariable (&sv_airaccel_qw);
313         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
314         Cvar_RegisterVariable (&sv_airaccelerate);
315         Cvar_RegisterVariable (&sv_allowdownloads);
316         Cvar_RegisterVariable (&sv_allowdownloads_archive);
317         Cvar_RegisterVariable (&sv_allowdownloads_config);
318         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
319         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
320         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
321         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
322         Cvar_RegisterVariable (&sv_clmovement_enable);
323         Cvar_RegisterVariable (&sv_clmovement_minping);
324         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
325         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
326         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
327         Cvar_RegisterVariable (&sv_cullentities_pvs);
328         Cvar_RegisterVariable (&sv_cullentities_stats);
329         Cvar_RegisterVariable (&sv_cullentities_trace);
330         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
331         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
332         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
333         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
334         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
335         Cvar_RegisterVariable (&sv_debugmove);
336         Cvar_RegisterVariable (&sv_echobprint);
337         Cvar_RegisterVariable (&sv_edgefriction);
338         Cvar_RegisterVariable (&sv_entpatch);
339         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
340         Cvar_RegisterVariable (&sv_freezenonclients);
341         Cvar_RegisterVariable (&sv_friction);
342         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
343         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
344         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
345         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
346         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
347         Cvar_RegisterVariable (&sv_gameplayfix_qwplayerphysics);
348         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
349         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
350         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
351         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
352         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
353         Cvar_RegisterVariable (&sv_gravity);
354         Cvar_RegisterVariable (&sv_idealpitchscale);
355         Cvar_RegisterVariable (&sv_jumpstep);
356         Cvar_RegisterVariable (&sv_jumpvelocity);
357         Cvar_RegisterVariable (&sv_maxairspeed);
358         Cvar_RegisterVariable (&sv_maxrate);
359         Cvar_RegisterVariable (&sv_maxspeed);
360         Cvar_RegisterVariable (&sv_maxvelocity);
361         Cvar_RegisterVariable (&sv_newflymove);
362         Cvar_RegisterVariable (&sv_nostep);
363         Cvar_RegisterVariable (&sv_playerphysicsqc);
364         Cvar_RegisterVariable (&sv_progs);
365         Cvar_RegisterVariable (&sv_protocolname);
366         Cvar_RegisterVariable (&sv_random_seed);
367         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
368         Cvar_RegisterVariable (&sv_sound_land);
369         Cvar_RegisterVariable (&sv_sound_watersplash);
370         Cvar_RegisterVariable (&sv_stepheight);
371         Cvar_RegisterVariable (&sv_stopspeed);
372         Cvar_RegisterVariable (&sv_wallfriction);
373         Cvar_RegisterVariable (&sv_wateraccelerate);
374         Cvar_RegisterVariable (&sv_waterfriction);
375         Cvar_RegisterVariable (&sys_ticrate);
376         Cvar_RegisterVariable (&teamplay);
377         Cvar_RegisterVariable (&timelimit);
378
379         Cvar_RegisterVariable (&saved1);
380         Cvar_RegisterVariable (&saved2);
381         Cvar_RegisterVariable (&saved3);
382         Cvar_RegisterVariable (&saved4);
383         Cvar_RegisterVariable (&savedgamecfg);
384         Cvar_RegisterVariable (&scratch1);
385         Cvar_RegisterVariable (&scratch2);
386         Cvar_RegisterVariable (&scratch3);
387         Cvar_RegisterVariable (&scratch4);
388         Cvar_RegisterVariable (&temp1);
389
390         // LordHavoc: Nehahra uses these to pass data around cutscene demos
391         if (gamemode == GAME_NEHAHRA)
392         {
393                 Cvar_RegisterVariable (&nehx00);
394                 Cvar_RegisterVariable (&nehx01);
395                 Cvar_RegisterVariable (&nehx02);
396                 Cvar_RegisterVariable (&nehx03);
397                 Cvar_RegisterVariable (&nehx04);
398                 Cvar_RegisterVariable (&nehx05);
399                 Cvar_RegisterVariable (&nehx06);
400                 Cvar_RegisterVariable (&nehx07);
401                 Cvar_RegisterVariable (&nehx08);
402                 Cvar_RegisterVariable (&nehx09);
403                 Cvar_RegisterVariable (&nehx10);
404                 Cvar_RegisterVariable (&nehx11);
405                 Cvar_RegisterVariable (&nehx12);
406                 Cvar_RegisterVariable (&nehx13);
407                 Cvar_RegisterVariable (&nehx14);
408                 Cvar_RegisterVariable (&nehx15);
409                 Cvar_RegisterVariable (&nehx16);
410                 Cvar_RegisterVariable (&nehx17);
411                 Cvar_RegisterVariable (&nehx18);
412                 Cvar_RegisterVariable (&nehx19);
413         }
414         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
415
416         // any special defaults for gamemodes go here
417         if (gamemode == GAME_HIPNOTIC)
418         {
419                 // 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.
420                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
421         }
422
423         sv_mempool = Mem_AllocPool("server", 0, NULL);
424 }
425
426 static void SV_SaveEntFile_f(void)
427 {
428         char basename[MAX_QPATH];
429         if (!sv.active || !sv.worldmodel)
430         {
431                 Con_Print("Not running a server\n");
432                 return;
433         }
434         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
435         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
436 }
437
438
439 /*
440 =============================================================================
441
442 EVENT MESSAGES
443
444 =============================================================================
445 */
446
447 /*
448 ==================
449 SV_StartParticle
450
451 Make sure the event gets sent to all clients
452 ==================
453 */
454 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
455 {
456         int i;
457
458         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
459                 return;
460         MSG_WriteByte (&sv.datagram, svc_particle);
461         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
462         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
463         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
464         for (i=0 ; i<3 ; i++)
465                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
466         MSG_WriteByte (&sv.datagram, count);
467         MSG_WriteByte (&sv.datagram, color);
468         SV_FlushBroadcastMessages();
469 }
470
471 /*
472 ==================
473 SV_StartEffect
474
475 Make sure the event gets sent to all clients
476 ==================
477 */
478 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
479 {
480         if (modelindex >= 256 || startframe >= 256)
481         {
482                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
483                         return;
484                 MSG_WriteByte (&sv.datagram, svc_effect2);
485                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
486                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
487                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
488                 MSG_WriteShort (&sv.datagram, modelindex);
489                 MSG_WriteShort (&sv.datagram, startframe);
490                 MSG_WriteByte (&sv.datagram, framecount);
491                 MSG_WriteByte (&sv.datagram, framerate);
492         }
493         else
494         {
495                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
496                         return;
497                 MSG_WriteByte (&sv.datagram, svc_effect);
498                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
499                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
500                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
501                 MSG_WriteByte (&sv.datagram, modelindex);
502                 MSG_WriteByte (&sv.datagram, startframe);
503                 MSG_WriteByte (&sv.datagram, framecount);
504                 MSG_WriteByte (&sv.datagram, framerate);
505         }
506         SV_FlushBroadcastMessages();
507 }
508
509 /*
510 ==================
511 SV_StartSound
512
513 Each entity can have eight independant sound sources, like voice,
514 weapon, feet, etc.
515
516 Channel 0 is an auto-allocate channel, the others override anything
517 already running on that entity/channel pair.
518
519 An attenuation of 0 will play full volume everywhere in the level.
520 Larger attenuations will drop off.  (max 4 attenuation)
521
522 ==================
523 */
524 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
525 {
526         int sound_num, field_mask, i, ent;
527
528         if (volume < 0 || volume > 255)
529         {
530                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
531                 return;
532         }
533
534         if (attenuation < 0 || attenuation > 4)
535         {
536                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
537                 return;
538         }
539
540         if (channel < 0 || channel > 7)
541         {
542                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
543                 return;
544         }
545
546         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
547                 return;
548
549 // find precache number for sound
550         sound_num = SV_SoundIndex(sample, 1);
551         if (!sound_num)
552                 return;
553
554         ent = PRVM_NUM_FOR_EDICT(entity);
555
556         field_mask = 0;
557         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
558                 field_mask |= SND_VOLUME;
559         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
560                 field_mask |= SND_ATTENUATION;
561         if (ent >= 8192)
562                 field_mask |= SND_LARGEENTITY;
563         if (sound_num >= 256 || channel >= 8)
564                 field_mask |= SND_LARGESOUND;
565
566 // directed messages go only to the entity they are targeted on
567         MSG_WriteByte (&sv.datagram, svc_sound);
568         MSG_WriteByte (&sv.datagram, field_mask);
569         if (field_mask & SND_VOLUME)
570                 MSG_WriteByte (&sv.datagram, volume);
571         if (field_mask & SND_ATTENUATION)
572                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
573         if (field_mask & SND_LARGEENTITY)
574         {
575                 MSG_WriteShort (&sv.datagram, ent);
576                 MSG_WriteByte (&sv.datagram, channel);
577         }
578         else
579                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
580         if (field_mask & SND_LARGESOUND)
581                 MSG_WriteShort (&sv.datagram, sound_num);
582         else
583                 MSG_WriteByte (&sv.datagram, sound_num);
584         for (i = 0;i < 3;i++)
585                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
586         SV_FlushBroadcastMessages();
587 }
588
589 /*
590 ==============================================================================
591
592 CLIENT SPAWNING
593
594 ==============================================================================
595 */
596
597 /*
598 ================
599 SV_SendServerinfo
600
601 Sends the first message from the server to a connected client.
602 This will be sent on the initial connection and upon each server load.
603 ================
604 */
605 void SV_SendServerinfo (client_t *client)
606 {
607         int i;
608         char message[128];
609
610         // we know that this client has a netconnection and thus is not a bot
611
612         // edicts get reallocated on level changes, so we need to update it here
613         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
614
615         // clear cached stuff that depends on the level
616         client->weaponmodel[0] = 0;
617         client->weaponmodelindex = 0;
618
619         // LordHavoc: clear entityframe tracking
620         client->latestframenum = 0;
621
622         if (client->entitydatabase)
623                 EntityFrame_FreeDatabase(client->entitydatabase);
624         if (client->entitydatabase4)
625                 EntityFrame4_FreeDatabase(client->entitydatabase4);
626         if (client->entitydatabase5)
627                 EntityFrame5_FreeDatabase(client->entitydatabase5);
628
629         memset(client->stats, 0, sizeof(client->stats));
630         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
631
632         if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE)
633         {
634                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
635                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
636                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
637                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
638                 else
639                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
640         }
641
642         // reset csqc entity versions
643         memset(client->csqcentityversion, 0, sizeof(client->csqcentityversion));
644
645         SZ_Clear (&client->netconnection->message);
646         MSG_WriteByte (&client->netconnection->message, svc_print);
647         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
648         MSG_WriteString (&client->netconnection->message,message);
649
650         //[515]: init csprogs according to version of svprogs, check the crc, etc.
651         if (sv.csqc_progname[0])
652         {
653                 prvm_eval_t *val;
654                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
655                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
656                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
657                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
658                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
659                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
660                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
661                 //[515]: init stufftext string (it is sent before svc_serverinfo)
662                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
663                 if (val)
664                 {
665                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
666                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
667                 }
668         }
669
670         if (sv_allowdownloads.integer)
671         {
672                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
673                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1");
674         }
675
676         // send at this time so it's guaranteed to get executed at the right time
677         {
678                 client_t *save;
679                 save = host_client;
680                 host_client = client;
681                 Curl_SendRequirements();
682                 host_client = save;
683         }
684
685         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
686         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
687         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
688
689         if (!coop.integer && deathmatch.integer)
690                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
691         else
692                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
693
694         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
695
696         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
697                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
698         MSG_WriteByte (&client->netconnection->message, 0);
699
700         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
701                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
702         MSG_WriteByte (&client->netconnection->message, 0);
703
704 // send music
705         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
706         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
707         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
708
709 // set view
710         MSG_WriteByte (&client->netconnection->message, svc_setview);
711         MSG_WriteShort (&client->netconnection->message, PRVM_NUM_FOR_EDICT(client->edict));
712
713         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
714         MSG_WriteByte (&client->netconnection->message, 1);
715
716         client->spawned = false;                // need prespawn, spawn, etc
717         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
718
719         // clear movement info until client enters the new level properly
720         memset(&client->cmd, 0, sizeof(client->cmd));
721         client->movesequence = 0;
722 #ifdef NUM_PING_TIMES
723         for (i = 0;i < NUM_PING_TIMES;i++)
724                 client->ping_times[i] = 0;
725         client->num_pings = 0;
726 #endif
727         client->ping = 0;
728 }
729
730 /*
731 ================
732 SV_ConnectClient
733
734 Initializes a client_t for a new net connection.  This will only be called
735 once for a player each game, not once for each level change.
736 ================
737 */
738 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
739 {
740         client_t                *client;
741         int                             i;
742         float                   spawn_parms[NUM_SPAWN_PARMS];
743
744         client = svs.clients + clientnum;
745
746 // set up the client_t
747         if (sv.loadgame)
748                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
749         memset (client, 0, sizeof(*client));
750         client->active = true;
751         client->netconnection = netconnection;
752
753         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
754
755         strlcpy(client->name, "unconnected", sizeof(client->name));
756         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
757         client->spawned = false;
758         client->edict = PRVM_EDICT_NUM(clientnum+1);
759         if (client->netconnection)
760                 client->netconnection->message.allowoverflow = true;            // we can catch it
761         // prepare the unreliable message buffer
762         client->unreliablemsg.data = client->unreliablemsg_data;
763         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
764         // updated by receiving "rate" command from client, this is also the default if not using a DP client
765         client->rate = 1000000000;
766         // no limits for local player
767         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
768                 client->rate = 1000000000;
769         client->connecttime = realtime;
770
771         if (sv.loadgame)
772                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
773         else
774         {
775                 // call the progs to get default spawn parms for the new client
776                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
777                 prog->globals.server->self = 0;
778                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
779                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
780                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
781
782                 // set up the entity for this client (including .colormap, .team, etc)
783                 PRVM_ED_ClearEdict(client->edict);
784         }
785
786         // don't call SendServerinfo for a fresh botclient because its fields have
787         // not been set up by the qc yet
788         if (client->netconnection)
789                 SV_SendServerinfo (client);
790         else
791                 client->spawned = true;
792 }
793
794
795 /*
796 ===============================================================================
797
798 FRAME UPDATES
799
800 ===============================================================================
801 */
802
803 /*
804 =============================================================================
805
806 The PVS must include a small area around the client to allow head bobbing
807 or other small motion on the client side.  Otherwise, a bob might cause an
808 entity that should be visible to not show up, especially when the bob
809 crosses a waterline.
810
811 =============================================================================
812 */
813
814 static qboolean SV_BuildEntityState (entity_state_t *cs, prvm_edict_t *ent, int enumber)
815 {
816         int i;
817         unsigned int tagentity;
818         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
819         unsigned int customizeentityforclient;
820         float f;
821         vec3_t cullmins, cullmaxs, netcenter;
822         model_t *model;
823         prvm_eval_t *val;
824
825         // see if the customizeentityforclient extension is used by this entity
826         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
827         if (customizeentityforclient)
828         {
829                 prog->globals.server->self = enumber;
830                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
831                 PRVM_ExecuteProgram(customizeentityforclient, "customizeentityforclient: NULL function");
832                 // customizeentityforclient can return false to reject the entity
833                 if (!PRVM_G_FLOAT(OFS_RETURN))
834                         return false;
835         }
836
837         // this 2 billion unit check is actually to detect NAN origins
838         // (we really don't want to send those)
839         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
840                 return false;
841
842         // EF_NODRAW prevents sending for any reason except for your own
843         // client, so we must keep all clients in this superset
844         effects = (unsigned)ent->fields.server->effects;
845
846         // we can omit invisible entities with no effects that are not clients
847         // LordHavoc: this could kill tags attached to an invisible entity, I
848         // just hope we never have to support that case
849         i = (int)ent->fields.server->modelindex;
850         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
851
852         flags = 0;
853         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
854         glowsize = (unsigned char)bound(0, i, 255);
855         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
856                 flags |= RENDER_GLOWTRAIL;
857         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
858                 flags |= RENDER_VIEWMODEL;
859
860         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
861         light[0] = (unsigned short)bound(0, f, 65535);
862         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
863         light[1] = (unsigned short)bound(0, f, 65535);
864         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
865         light[2] = (unsigned short)bound(0, f, 65535);
866         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
867         light[3] = (unsigned short)bound(0, f, 65535);
868         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
869         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
870
871         if (gamemode == GAME_TENEBRAE)
872         {
873                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
874                 if (effects & 16)
875                 {
876                         effects &= ~16;
877                         lightpflags |= PFLAGS_FULLDYNAMIC;
878                 }
879                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
880                 if (effects & 32)
881                 {
882                         effects &= ~32;
883                         light[0] = (int)(0.2*256);
884                         light[1] = (int)(1.0*256);
885                         light[2] = (int)(0.2*256);
886                         light[3] = 200;
887                         lightpflags |= PFLAGS_FULLDYNAMIC;
888                 }
889         }
890
891         specialvisibilityradius = 0;
892         if (lightpflags & PFLAGS_FULLDYNAMIC)
893                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
894         if (glowsize)
895                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
896         if (flags & RENDER_GLOWTRAIL)
897                 specialvisibilityradius = max(specialvisibilityradius, 100);
898         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
899         {
900                 if (effects & EF_BRIGHTFIELD)
901                         specialvisibilityradius = max(specialvisibilityradius, 80);
902                 if (effects & EF_MUZZLEFLASH)
903                         specialvisibilityradius = max(specialvisibilityradius, 100);
904                 if (effects & EF_BRIGHTLIGHT)
905                         specialvisibilityradius = max(specialvisibilityradius, 400);
906                 if (effects & EF_DIMLIGHT)
907                         specialvisibilityradius = max(specialvisibilityradius, 200);
908                 if (effects & EF_RED)
909                         specialvisibilityradius = max(specialvisibilityradius, 200);
910                 if (effects & EF_BLUE)
911                         specialvisibilityradius = max(specialvisibilityradius, 200);
912                 if (effects & EF_FLAME)
913                         specialvisibilityradius = max(specialvisibilityradius, 250);
914                 if (effects & EF_STARDUST)
915                         specialvisibilityradius = max(specialvisibilityradius, 100);
916         }
917
918         // don't send uninteresting entities
919         if (enumber != sv.writeentitiestoclient_cliententitynumber)
920         {
921                 if (!modelindex && !specialvisibilityradius)
922                         return false;
923                 if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict == sv.writeentitiestoclient_cliententitynumber)
924                         return false;
925                 if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict != sv.writeentitiestoclient_cliententitynumber)
926                         return false;
927                 if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict != sv.writeentitiestoclient_cliententitynumber)
928                         return false;
929                 if (flags & RENDER_VIEWMODEL && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict != sv.writeentitiestoclient_cliententitynumber)
930                         return false;
931                 if (effects & EF_NODRAW)
932                         return false;
933         }
934
935         // don't send child if parent was rejected
936         // FIXME: it would be better to force the parent to send...
937         tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
938         if (tagentity && !SV_BuildEntityState(NULL, PRVM_EDICT_NUM(tagentity), tagentity))
939                 return false;
940
941         // calculate the visible box of this entity (don't use the physics box
942         // as that is often smaller than a model, and would not count
943         // specialvisibilityradius)
944         if ((model = sv.models[modelindex]))
945         {
946                 float scale = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float;
947                 if (scale)
948                         scale *= (1.0f / 16.0f);
949                 else
950                         scale = 1;
951                 if (ent->fields.server->angles[0] || ent->fields.server->angles[2]) // pitch and roll
952                 {
953                         VectorMA(ent->fields.server->origin, scale, model->rotatedmins, cullmins);
954                         VectorMA(ent->fields.server->origin, scale, model->rotatedmaxs, cullmaxs);
955                 }
956                 else if (ent->fields.server->angles[1])
957                 {
958                         VectorMA(ent->fields.server->origin, scale, model->yawmins, cullmins);
959                         VectorMA(ent->fields.server->origin, scale, model->yawmaxs, cullmaxs);
960                 }
961                 else
962                 {
963                         VectorMA(ent->fields.server->origin, scale, model->normalmins, cullmins);
964                         VectorMA(ent->fields.server->origin, scale, model->normalmaxs, cullmaxs);
965                 }
966         }
967         else
968         {
969                 // if there is no model (or it could not be loaded), use the physics box
970                 VectorAdd(ent->fields.server->origin, ent->fields.server->mins, cullmins);
971                 VectorAdd(ent->fields.server->origin, ent->fields.server->maxs, cullmaxs);
972         }
973         if (specialvisibilityradius)
974         {
975                 cullmins[0] = min(cullmins[0], ent->fields.server->origin[0] - specialvisibilityradius);
976                 cullmins[1] = min(cullmins[1], ent->fields.server->origin[1] - specialvisibilityradius);
977                 cullmins[2] = min(cullmins[2], ent->fields.server->origin[2] - specialvisibilityradius);
978                 cullmaxs[0] = max(cullmaxs[0], ent->fields.server->origin[0] + specialvisibilityradius);
979                 cullmaxs[1] = max(cullmaxs[1], ent->fields.server->origin[1] + specialvisibilityradius);
980                 cullmaxs[2] = max(cullmaxs[2], ent->fields.server->origin[2] + specialvisibilityradius);
981         }
982
983         // calculate center of bbox for network prioritization purposes
984         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, netcenter);
985
986         // if culling box has moved, update pvs cluster links
987         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
988         {
989                 VectorCopy(cullmins, ent->priv.server->cullmins);
990                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
991                 // a value of -1 for pvs_numclusters indicates that the links are not
992                 // cached, and should be re-tested each time, this is the case if the
993                 // culling box touches too many pvs clusters to store, or if the world
994                 // model does not support FindBoxClusters
995                 ent->priv.server->pvs_numclusters = -1;
996                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
997                 {
998                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
999                         if (i <= MAX_ENTITYCLUSTERS)
1000                                 ent->priv.server->pvs_numclusters = i;
1001                 }
1002         }
1003
1004         if (enumber != sv.writeentitiestoclient_cliententitynumber && !(effects & EF_NODEPTHTEST) && !(flags & RENDER_VIEWMODEL) && !tagentity)
1005         {
1006                 qboolean isbmodel = (model = sv.models[modelindex]) != NULL && model->name[0] == '*';
1007                 if (!isbmodel || !sv_cullentities_nevercullbmodels.integer)
1008                 {
1009                         // cull based on visibility
1010
1011                         // if not touching a visible leaf
1012                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1013                         {
1014                                 if (ent->priv.server->pvs_numclusters < 0)
1015                                 {
1016                                         // entity too big for clusters list
1017                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, cullmins, cullmaxs))
1018                                         {
1019                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1020                                                 return false;
1021                                         }
1022                                 }
1023                                 else
1024                                 {
1025                                         int i;
1026                                         // check cached clusters list
1027                                         for (i = 0;i < ent->priv.server->pvs_numclusters;i++)
1028                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ent->priv.server->pvs_clusterlist[i]))
1029                                                         break;
1030                                         if (i == ent->priv.server->pvs_numclusters)
1031                                         {
1032                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1033                                                 return false;
1034                                         }
1035                                 }
1036                         }
1037
1038                         // or not seen by random tracelines
1039                         if (sv_cullentities_trace.integer && !isbmodel)
1040                         {
1041                                 int samples = specialvisibilityradius ? sv_cullentities_trace_samples_extra.integer : sv_cullentities_trace_samples.integer;
1042                                 float enlarge = sv_cullentities_trace_enlarge.value;
1043
1044                                 qboolean visible = true;
1045
1046                                 do
1047                                 {
1048                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, cullmins, cullmaxs))
1049                                                 break; // directly visible from the server's view
1050
1051                                         if(sv_cullentities_trace_prediction.integer)
1052                                         {
1053                                                 vec3_t predeye;
1054
1055                                                 // get player velocity
1056                                                 float predtime = bound(0, host_client->ping, 0.2); // / 2
1057                                                         // sorry, no wallhacking by high ping please, and at 200ms
1058                                                         // ping a FPS is annoying to play anyway and a player is
1059                                                         // likely to have changed his direction
1060                                                 VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1061                                                 if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1062                                                 {
1063                                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, cullmins, cullmaxs))
1064                                                                 break; // directly visible from the predicted view
1065                                                 }
1066                                                 else
1067                                                 {
1068                                                         //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1069                                                 }
1070                                         }
1071
1072                                         // when we get here, we can't see the entity
1073                                         visible = false;
1074                                 }
1075                                 while(0);
1076
1077                                 if(visible)
1078                                         svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[enumber] = realtime + sv_cullentities_trace_delay.value;
1079                                 else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[enumber])
1080                                 {
1081                                         sv.writeentitiestoclient_stats_culled_trace++;
1082                                         return false;
1083                                 }
1084                         }
1085                 }
1086         }
1087
1088         // if the caller was just checking...  return true
1089         if (!cs)
1090                 return true;
1091
1092         *cs = defaultstate;
1093         cs->active = true;
1094         cs->number = enumber;
1095         VectorCopy(netcenter, cs->netcenter);
1096         VectorCopy(ent->fields.server->origin, cs->origin);
1097         VectorCopy(ent->fields.server->angles, cs->angles);
1098         cs->flags = flags;
1099         cs->effects = effects;
1100         cs->colormap = (unsigned)ent->fields.server->colormap;
1101         cs->modelindex = modelindex;
1102         cs->skin = (unsigned)ent->fields.server->skin;
1103         cs->frame = (unsigned)ent->fields.server->frame;
1104         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1105         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1106         cs->glowsize = glowsize;
1107
1108         // don't need to init cs->colormod because the defaultstate did that for us
1109         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1110         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1111         if (val->vector[0] || val->vector[1] || val->vector[2])
1112         {
1113                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1114                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1115                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1116         }
1117
1118         cs->modelindex = modelindex;
1119
1120         cs->alpha = 255;
1121         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1122         if (f)
1123         {
1124                 i = (int)f;
1125                 cs->alpha = (unsigned char)bound(0, i, 255);
1126         }
1127         // halflife
1128         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1129         if (f)
1130         {
1131                 i = (int)f;
1132                 cs->alpha = (unsigned char)bound(0, i, 255);
1133         }
1134
1135         cs->scale = 16;
1136         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1137         if (f)
1138         {
1139                 i = (int)f;
1140                 cs->scale = (unsigned char)bound(0, i, 255);
1141         }
1142
1143         cs->glowcolor = 254;
1144         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1145         if (f)
1146                 cs->glowcolor = (int)f;
1147
1148         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1149                 cs->effects |= EF_FULLBRIGHT;
1150
1151         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1152         if (val && val->_float)
1153                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1154
1155         if (ent->fields.server->movetype == MOVETYPE_STEP)
1156                 cs->flags |= RENDER_STEP;
1157         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)
1158                 cs->flags |= RENDER_LOWPRECISION;
1159         if (ent->fields.server->colormap >= 1024)
1160                 cs->flags |= RENDER_COLORMAPPED;
1161         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->edict && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->edict == sv.writeentitiestoclient_cliententitynumber)
1162                 cs->flags |= RENDER_EXTERIORMODEL;
1163
1164         cs->light[0] = light[0];
1165         cs->light[1] = light[1];
1166         cs->light[2] = light[2];
1167         cs->light[3] = light[3];
1168         cs->lightstyle = lightstyle;
1169         cs->lightpflags = lightpflags;
1170
1171         return true;
1172 }
1173
1174 static void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg)
1175 {
1176         int i;
1177         int numsendstates;
1178         prvm_edict_t *ent;
1179
1180         // if there isn't enough space to accomplish anything, skip it
1181         if (msg->cursize + 25 > msg->maxsize)
1182                 return;
1183
1184         sv.writeentitiestoclient_msg = msg;
1185         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1186
1187         sv.writeentitiestoclient_stats_culled_pvs = 0;
1188         sv.writeentitiestoclient_stats_culled_trace = 0;
1189         sv.writeentitiestoclient_stats_visibleentities = 0;
1190         sv.writeentitiestoclient_stats_totalentities = 0;
1191
1192 // find the client's PVS
1193         // the real place being tested from
1194         VectorAdd(clent->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1195         sv.writeentitiestoclient_pvsbytes = 0;
1196         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1197                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs));
1198
1199         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1200
1201         // send all entities that touch the pvs
1202         numsendstates = 0;
1203         for (i = 1, ent = PRVM_NEXT_EDICT(prog->edicts);i < prog->num_edicts;i++, ent = PRVM_NEXT_EDICT(ent))
1204                 if (!ent->priv.server->free && SV_BuildEntityState(sv.writeentitiestoclient_sendstates + numsendstates, ent, i))
1205                         numsendstates++;
1206
1207         if (sv_cullentities_stats.integer)
1208                 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);
1209
1210         EntityFrameCSQC_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
1211
1212         if (client->entitydatabase5)
1213                 EntityFrame5_WriteFrame(msg, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence);
1214         else if (client->entitydatabase4)
1215         {
1216                 EntityFrame4_WriteFrame(msg, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1217                 Protocol_WriteStatsReliable();
1218         }
1219         else if (client->entitydatabase)
1220         {
1221                 EntityFrame_WriteFrame(msg, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1222                 Protocol_WriteStatsReliable();
1223         }
1224         else
1225         {
1226                 EntityFrameQuake_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
1227                 Protocol_WriteStatsReliable();
1228         }
1229 }
1230
1231 /*
1232 =============
1233 SV_CleanupEnts
1234
1235 =============
1236 */
1237 static void SV_CleanupEnts (void)
1238 {
1239         int             e;
1240         prvm_edict_t    *ent;
1241
1242         ent = PRVM_NEXT_EDICT(prog->edicts);
1243         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1244                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1245 }
1246
1247 /*
1248 ==================
1249 SV_WriteClientdataToMessage
1250
1251 ==================
1252 */
1253 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1254 {
1255         int             bits;
1256         int             i;
1257         prvm_edict_t    *other;
1258         int             items;
1259         prvm_eval_t     *val;
1260         vec3_t  punchvector;
1261         int             viewzoom;
1262         const char *s;
1263         float   *statsf = (float *)stats;
1264
1265 //
1266 // send a damage message
1267 //
1268         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1269         {
1270                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1271                 MSG_WriteByte (msg, svc_damage);
1272                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1273                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1274                 for (i=0 ; i<3 ; i++)
1275                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1276
1277                 ent->fields.server->dmg_take = 0;
1278                 ent->fields.server->dmg_save = 0;
1279         }
1280
1281 //
1282 // send the current viewpos offset from the view entity
1283 //
1284         SV_SetIdealPitch ();            // how much to look up / down ideally
1285
1286 // a fixangle might get lost in a dropped packet.  Oh well.
1287         if(ent->fields.server->fixangle)
1288         {
1289                 // angle fixing was requested by global thinking code...
1290                 // so store the current angles for later use
1291                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1292                 host_client->fixangle_angles_set = TRUE;
1293
1294                 // and clear fixangle for the next frame
1295                 ent->fields.server->fixangle = 0;
1296         }
1297
1298         if (host_client->fixangle_angles_set)
1299         {
1300                 MSG_WriteByte (msg, svc_setangle);
1301                 for (i=0 ; i < 3 ; i++)
1302                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1303                 host_client->fixangle_angles_set = FALSE;
1304         }
1305
1306         // stuff the sigil bits into the high bits of items for sbar, or else
1307         // mix in items2
1308         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1309         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1310                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1311         else
1312                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1313
1314         VectorClear(punchvector);
1315         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1316                 VectorCopy(val->vector, punchvector);
1317
1318         // cache weapon model name and index in client struct to save time
1319         // (this search can be almost 1% of cpu time!)
1320         s = PRVM_GetString(ent->fields.server->weaponmodel);
1321         if (strcmp(s, client->weaponmodel))
1322         {
1323                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1324                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1325         }
1326
1327         viewzoom = 255;
1328         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1329                 viewzoom = (int)(val->_float * 255.0f);
1330         if (viewzoom == 0)
1331                 viewzoom = 255;
1332
1333         bits = 0;
1334
1335         if ((int)ent->fields.server->flags & FL_ONGROUND)
1336                 bits |= SU_ONGROUND;
1337         if (ent->fields.server->waterlevel >= 2)
1338                 bits |= SU_INWATER;
1339         if (ent->fields.server->idealpitch)
1340                 bits |= SU_IDEALPITCH;
1341
1342         for (i=0 ; i<3 ; i++)
1343         {
1344                 if (ent->fields.server->punchangle[i])
1345                         bits |= (SU_PUNCH1<<i);
1346                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE)
1347                         if (punchvector[i])
1348                                 bits |= (SU_PUNCHVEC1<<i);
1349                 if (ent->fields.server->velocity[i])
1350                         bits |= (SU_VELOCITY1<<i);
1351         }
1352
1353         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1354         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1355         stats[STAT_ITEMS] = items;
1356         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1357         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1358         stats[STAT_WEAPON] = client->weaponmodelindex;
1359         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1360         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1361         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1362         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1363         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1364         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1365         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1366         stats[STAT_VIEWZOOM] = viewzoom;
1367         stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
1368         stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
1369         // the QC bumps these itself by sending svc_'s, so we have to keep them
1370         // zero or they'll be corrected by the engine
1371         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1372         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1373
1374         // movement settings for prediction
1375         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1376         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1377         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1378         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1379         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1380         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1381         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1382         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1383         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1384         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1385         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1386         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1387         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1388         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1389         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1390         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1391         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1392         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1393         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1394         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1395         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1396         statsf[STAT_TIMELIMIT] = timelimit.value;
1397
1398         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1399         {
1400                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1401                 bits |= SU_ITEMS;
1402                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1403                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1404                 bits |= SU_WEAPON;
1405                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1406                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1407                         if (viewzoom != 255)
1408                                 bits |= SU_VIEWZOOM;
1409         }
1410
1411         if (bits >= 65536)
1412                 bits |= SU_EXTEND1;
1413         if (bits >= 16777216)
1414                 bits |= SU_EXTEND2;
1415
1416         // send the data
1417         MSG_WriteByte (msg, svc_clientdata);
1418         MSG_WriteShort (msg, bits);
1419         if (bits & SU_EXTEND1)
1420                 MSG_WriteByte(msg, bits >> 16);
1421         if (bits & SU_EXTEND2)
1422                 MSG_WriteByte(msg, bits >> 24);
1423
1424         if (bits & SU_VIEWHEIGHT)
1425                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1426
1427         if (bits & SU_IDEALPITCH)
1428                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1429
1430         for (i=0 ; i<3 ; i++)
1431         {
1432                 if (bits & (SU_PUNCH1<<i))
1433                 {
1434                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
1435                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1436                         else
1437                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1438                 }
1439                 if (bits & (SU_PUNCHVEC1<<i))
1440                 {
1441                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1442                                 MSG_WriteCoord16i(msg, punchvector[i]);
1443                         else
1444                                 MSG_WriteCoord32f(msg, punchvector[i]);
1445                 }
1446                 if (bits & (SU_VELOCITY1<<i))
1447                 {
1448                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1449                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1450                         else
1451                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1452                 }
1453         }
1454
1455         if (bits & SU_ITEMS)
1456                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1457
1458         if (sv.protocol == PROTOCOL_DARKPLACES5)
1459         {
1460                 if (bits & SU_WEAPONFRAME)
1461                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1462                 if (bits & SU_ARMOR)
1463                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1464                 if (bits & SU_WEAPON)
1465                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1466                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1467                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1468                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1469                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1470                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1471                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1472                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1473                 if (bits & SU_VIEWZOOM)
1474                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1475         }
1476         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1477         {
1478                 if (bits & SU_WEAPONFRAME)
1479                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1480                 if (bits & SU_ARMOR)
1481                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1482                 if (bits & SU_WEAPON)
1483                         MSG_WriteByte (msg, stats[STAT_WEAPON]);
1484                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1485                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1486                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1487                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1488                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1489                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1490                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1491                 {
1492                         for (i = 0;i < 32;i++)
1493                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1494                                         break;
1495                         MSG_WriteByte (msg, i);
1496                 }
1497                 else
1498                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1499                 if (bits & SU_VIEWZOOM)
1500                 {
1501                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1502                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1503                         else
1504                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1505                 }
1506         }
1507 }
1508
1509 void SV_FlushBroadcastMessages(void)
1510 {
1511         int i;
1512         client_t *client;
1513         if (sv.datagram.cursize <= 0)
1514                 return;
1515         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1516         {
1517                 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])))
1518                         continue;
1519                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1520                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1521         }
1522         SZ_Clear(&sv.datagram);
1523 }
1524
1525 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg)
1526 {
1527         // scan the splitpoints to find out how many we can fit in
1528         int numsegments, j, split;
1529         if (!client->unreliablemsg_splitpoints)
1530                 return;
1531         // always accept the first one if it's within 1400 bytes, this ensures
1532         // that very big datagrams which are over the rate limit still get
1533         // through, just to keep it working
1534         if (msg->cursize + client->unreliablemsg_splitpoint[0] > msg->maxsize && msg->maxsize < 1400)
1535         {
1536                 numsegments = 1;
1537                 msg->maxsize = 1400;
1538         }
1539         else
1540                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1541                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > msg->maxsize)
1542                                 break;
1543         if (numsegments > 0)
1544         {
1545                 // some will fit, so add the ones that will fit
1546                 split = client->unreliablemsg_splitpoint[numsegments-1];
1547                 // note this discards ones that were accepted by the segments scan but
1548                 // can not fit, such as a really huge first one that will never ever
1549                 // fit in a packet...
1550                 if (msg->cursize + split <= msg->maxsize)
1551                         SZ_Write(msg, client->unreliablemsg.data, split);
1552                 // remove the part we sent, keeping any remaining data
1553                 client->unreliablemsg.cursize -= split;
1554                 if (client->unreliablemsg.cursize > 0)
1555                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1556                 // adjust remaining splitpoints
1557                 client->unreliablemsg_splitpoints -= numsegments;
1558                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1559                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1560         }
1561 }
1562
1563 /*
1564 =======================
1565 SV_SendClientDatagram
1566 =======================
1567 */
1568 static void SV_SendClientDatagram (client_t *client)
1569 {
1570         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1571         sizebuf_t msg;
1572         int stats[MAX_CL_STATS];
1573         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1574
1575         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1576         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1577         if (sv_maxrate.integer != maxrate)
1578                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1579         // clientrate determines the 'cleartime' of a packet
1580         // (how long to wait before sending another, based on this packet's size)
1581         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1582
1583         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1584         {
1585                 // for good singleplayer, send huge packets and never limit frequency
1586                 clientrate = 1000000000;
1587                 maxsize = sizeof(sv_sendclientdatagram_buf);
1588                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1589         }
1590         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1591         {
1592                 // no packet size limit support on older protocols because DP1-4 kick
1593                 // the client off if they overflow, and quake protocol shows less than
1594                 // the full entity set if rate limited
1595                 clientrate = max(NET_MINRATE, client->rate);
1596                 maxsize = 1024;
1597                 maxsize2 = 1024;
1598         }
1599         else
1600         {
1601                 // DP5 and later protocols support packet size limiting which is a
1602                 // better method than limiting packet frequency as QW does
1603                 //
1604                 // this rate limiting does not understand sys_ticrate 0
1605                 // (but no one should be running that on a server!)
1606                 maxsize = (int)(clientrate * sys_ticrate.value);
1607                 maxsize = bound(100, maxsize, 1400);
1608                 maxsize2 = 1400;
1609         }
1610
1611         // while downloading, limit entity updates to half the packet
1612         // (any leftover space will be used for downloading)
1613         if (host_client->download_file)
1614                 maxsize /= 2;
1615
1616         msg.data = sv_sendclientdatagram_buf;
1617         msg.maxsize = maxsize;
1618         msg.cursize = 0;
1619
1620         // obey rate limit by limiting packet frequency if the packet size
1621         // limiting fails
1622         // (usually this is caused by reliable messages)
1623         if (!NetConn_CanSend(client->netconnection))
1624         {
1625                 // send the datagram
1626                 //NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, true);
1627                 return;
1628         }
1629         else if (host_client->spawned)
1630         {
1631                 MSG_WriteByte (&msg, svc_time);
1632                 MSG_WriteFloat (&msg, sv.time);
1633
1634                 // add the client specific data to the datagram
1635                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1636                 // now update the stats[] array using any registered custom fields
1637                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1638                 // set host_client->statsdeltabits
1639                 Protocol_UpdateClientStats (stats);
1640
1641                 // add as many queued unreliable messages (effects) as we can fit
1642                 // limit effects to half of the remaining space
1643                 msg.maxsize -= (msg.maxsize - msg.cursize) / 2;
1644                 if (client->unreliablemsg.cursize)
1645                         SV_WriteUnreliableMessages (client, &msg);
1646
1647                 msg.maxsize = maxsize;
1648
1649                 // now write as many entities as we can fit, and also sends stats
1650                 SV_WriteEntitiesToClient (client, client->edict, &msg);
1651         }
1652         else if (realtime > client->keepalivetime)
1653         {
1654                 // the player isn't totally in the game yet
1655                 // send small keepalive messages if too much time has passed
1656                 msg.maxsize = maxsize2;
1657                 client->keepalivetime = realtime + 5;
1658                 MSG_WriteChar (&msg, svc_nop);
1659         }
1660
1661         msg.maxsize = maxsize2;
1662
1663         // if a download is active, see if there is room to fit some download data
1664         // in this packet
1665         downloadsize = maxsize * 2 - msg.cursize - 7;
1666         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1667         {
1668                 fs_offset_t downloadstart;
1669                 unsigned char data[1400];
1670                 downloadstart = FS_Tell(host_client->download_file);
1671                 downloadsize = min(downloadsize, (int)sizeof(data));
1672                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1673                 // note this sends empty messages if at the end of the file, which is
1674                 // necessary to keep the packet loss logic working
1675                 // (the last blocks may be lost and need to be re-sent, and that will
1676                 //  only occur if the client acks the empty end messages, revealing
1677                 //  a gap in the download progress, causing the last blocks to be
1678                 //  sent again)
1679                 MSG_WriteChar (&msg, svc_downloaddata);
1680                 MSG_WriteLong (&msg, downloadstart);
1681                 MSG_WriteShort (&msg, downloadsize);
1682                 if (downloadsize > 0)
1683                         SZ_Write (&msg, data, downloadsize);
1684         }
1685
1686 // send the datagram
1687         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1688         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1689                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1690 }
1691
1692 /*
1693 =======================
1694 SV_UpdateToReliableMessages
1695 =======================
1696 */
1697 static void SV_UpdateToReliableMessages (void)
1698 {
1699         int i, j;
1700         client_t *client;
1701         prvm_eval_t *val;
1702         const char *name;
1703         const char *model;
1704         const char *skin;
1705
1706 // check for changes to be sent over the reliable streams
1707         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1708         {
1709                 // update the host_client fields we care about according to the entity fields
1710                 host_client->edict = PRVM_EDICT_NUM(i+1);
1711
1712                 // DP_SV_CLIENTNAME
1713                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1714                 if (name == NULL)
1715                         name = "";
1716                 // always point the string back at host_client->name to keep it safe
1717                 strlcpy (host_client->name, name, sizeof (host_client->name));
1718                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1719                 if (strcmp(host_client->old_name, host_client->name))
1720                 {
1721                         if (host_client->spawned)
1722                                 SV_BroadcastPrintf("%s changed name to %s\n", host_client->old_name, host_client->name);
1723                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
1724                         // send notification to all clients
1725                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
1726                         MSG_WriteByte (&sv.reliable_datagram, i);
1727                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
1728                 }
1729
1730                 // DP_SV_CLIENTCOLORS
1731                 // this is always found (since it's added by the progs loader)
1732                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
1733                         host_client->colors = (int)val->_float;
1734                 if (host_client->old_colors != host_client->colors)
1735                 {
1736                         host_client->old_colors = host_client->colors;
1737                         // send notification to all clients
1738                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
1739                         MSG_WriteByte (&sv.reliable_datagram, i);
1740                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
1741                 }
1742
1743                 // NEXUIZ_PLAYERMODEL
1744                 if( prog->fieldoffsets.playermodel >= 0 ) {
1745                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
1746                         if (model == NULL)
1747                                 model = "";
1748                         // always point the string back at host_client->name to keep it safe
1749                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
1750                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
1751                 }
1752
1753                 // NEXUIZ_PLAYERSKIN
1754                 if( prog->fieldoffsets.playerskin >= 0 ) {
1755                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
1756                         if (skin == NULL)
1757                                 skin = "";
1758                         // always point the string back at host_client->name to keep it safe
1759                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
1760                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
1761                 }
1762
1763                 // frags
1764                 host_client->frags = (int)host_client->edict->fields.server->frags;
1765                 if (host_client->old_frags != host_client->frags)
1766                 {
1767                         host_client->old_frags = host_client->frags;
1768                         // send notification to all clients
1769                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
1770                         MSG_WriteByte (&sv.reliable_datagram, i);
1771                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
1772                 }
1773         }
1774
1775         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
1776                 if (client->netconnection)
1777                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1778
1779         SZ_Clear (&sv.reliable_datagram);
1780 }
1781
1782
1783 /*
1784 =======================
1785 SV_SendClientMessages
1786 =======================
1787 */
1788 void SV_SendClientMessages (void)
1789 {
1790         int i;
1791
1792         if (sv.protocol == PROTOCOL_QUAKEWORLD)
1793                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
1794
1795         SV_FlushBroadcastMessages();
1796
1797 // update frags, names, etc
1798         SV_UpdateToReliableMessages();
1799
1800 // build individual updates
1801         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1802         {
1803                 if (!host_client->active)
1804                         continue;
1805                 if (!host_client->netconnection)
1806                         continue;
1807
1808                 if (host_client->netconnection->message.overflowed)
1809                 {
1810                         SV_DropClient (true);   // if the message couldn't send, kick off
1811                         continue;
1812                 }
1813
1814                 SV_SendClientDatagram (host_client);
1815         }
1816
1817 // clear muzzle flashes
1818         SV_CleanupEnts();
1819 }
1820
1821 static void SV_StartDownload_f(void)
1822 {
1823         if (host_client->download_file)
1824                 host_client->download_started = true;
1825 }
1826
1827 static void SV_Download_f(void)
1828 {
1829         const char *whichpack, *whichpack2, *extension;
1830
1831         if (Cmd_Argc() != 2)
1832         {
1833                 SV_ClientPrintf("usage: download <filename>\n");
1834                 return;
1835         }
1836
1837         if (FS_CheckNastyPath(Cmd_Argv(1), false))
1838         {
1839                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
1840                 return;
1841         }
1842
1843         if (host_client->download_file)
1844         {
1845                 // at this point we'll assume the previous download should be aborted
1846                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
1847                 Host_ClientCommands("\nstopdownload\n");
1848
1849                 // close the file and reset variables
1850                 FS_Close(host_client->download_file);
1851                 host_client->download_file = NULL;
1852                 host_client->download_name[0] = 0;
1853                 host_client->download_expectedposition = 0;
1854                 host_client->download_started = false;
1855         }
1856
1857         if (!sv_allowdownloads.integer)
1858         {
1859                 SV_ClientPrintf("Downloads are disabled on this server\n");
1860                 Host_ClientCommands("\nstopdownload\n");
1861                 return;
1862         }
1863
1864         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
1865         extension = FS_FileExtension(host_client->download_name);
1866
1867         // host_client is asking to download a specified file
1868         if (developer.integer >= 100)
1869                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
1870
1871         if (!FS_FileExists(host_client->download_name))
1872         {
1873                 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);
1874                 Host_ClientCommands("\nstopdownload\n");
1875                 return;
1876         }
1877
1878         // check if the user is trying to download part of registered Quake(r)
1879         whichpack = FS_WhichPack(host_client->download_name);
1880         whichpack2 = FS_WhichPack("gfx/pop.lmp");
1881         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
1882         {
1883                 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);
1884                 Host_ClientCommands("\nstopdownload\n");
1885                 return;
1886         }
1887
1888         // check if the server has forbidden archive downloads entirely
1889         if (!sv_allowdownloads_inarchive.integer)
1890         {
1891                 whichpack = FS_WhichPack(host_client->download_name);
1892                 if (whichpack)
1893                 {
1894                         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);
1895                         Host_ClientCommands("\nstopdownload\n");
1896                         return;
1897                 }
1898         }
1899
1900         if (!sv_allowdownloads_config.integer)
1901         {
1902                 if (!strcasecmp(extension, "cfg"))
1903                 {
1904                         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);
1905                         Host_ClientCommands("\nstopdownload\n");
1906                         return;
1907                 }
1908         }
1909
1910         if (!sv_allowdownloads_dlcache.integer)
1911         {
1912                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
1913                 {
1914                         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);
1915                         Host_ClientCommands("\nstopdownload\n");
1916                         return;
1917                 }
1918         }
1919
1920         if (!sv_allowdownloads_archive.integer)
1921         {
1922                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
1923                 {
1924                         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);
1925                         Host_ClientCommands("\nstopdownload\n");
1926                         return;
1927                 }
1928         }
1929
1930         host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
1931         if (!host_client->download_file)
1932         {
1933                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
1934                 Host_ClientCommands("\nstopdownload\n");
1935                 return;
1936         }
1937
1938         if (FS_FileSize(host_client->download_file) > 1<<30)
1939         {
1940                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
1941                 Host_ClientCommands("\nstopdownload\n");
1942                 FS_Close(host_client->download_file);
1943                 host_client->download_file = NULL;
1944                 return;
1945         }
1946
1947         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
1948
1949         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
1950
1951         host_client->download_expectedposition = 0;
1952         host_client->download_started = false;
1953         host_client->sendsignon = true; // make sure this message is sent
1954
1955         // the rest of the download process is handled in SV_SendClientDatagram
1956         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
1957         //
1958         // no svc_downloaddata messages will be sent until sv_startdownload is
1959         // sent by the client
1960 }
1961
1962 /*
1963 ==============================================================================
1964
1965 SERVER SPAWNING
1966
1967 ==============================================================================
1968 */
1969
1970 /*
1971 ================
1972 SV_ModelIndex
1973
1974 ================
1975 */
1976 int SV_ModelIndex(const char *s, int precachemode)
1977 {
1978         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE) ? 256 : MAX_MODELS);
1979         char filename[MAX_QPATH];
1980         if (!s || !*s)
1981                 return 0;
1982         // testing
1983         //if (precachemode == 2)
1984         //      return 0;
1985         strlcpy(filename, s, sizeof(filename));
1986         for (i = 2;i < limit;i++)
1987         {
1988                 if (!sv.model_precache[i][0])
1989                 {
1990                         if (precachemode)
1991                         {
1992                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
1993                                 {
1994                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
1995                                         return 0;
1996                                 }
1997                                 if (precachemode == 1)
1998                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
1999                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2000                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2001                                 if (sv.state != ss_loading)
2002                                 {
2003                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2004                                         MSG_WriteShort(&sv.reliable_datagram, i);
2005                                         MSG_WriteString(&sv.reliable_datagram, filename);
2006                                 }
2007                                 return i;
2008                         }
2009                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2010                         return 0;
2011                 }
2012                 if (!strcmp(sv.model_precache[i], filename))
2013                         return i;
2014         }
2015         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2016         return 0;
2017 }
2018
2019 /*
2020 ================
2021 SV_SoundIndex
2022
2023 ================
2024 */
2025 int SV_SoundIndex(const char *s, int precachemode)
2026 {
2027         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE) ? 256 : MAX_SOUNDS);
2028         char filename[MAX_QPATH];
2029         if (!s || !*s)
2030                 return 0;
2031         // testing
2032         //if (precachemode == 2)
2033         //      return 0;
2034         strlcpy(filename, s, sizeof(filename));
2035         for (i = 1;i < limit;i++)
2036         {
2037                 if (!sv.sound_precache[i][0])
2038                 {
2039                         if (precachemode)
2040                         {
2041                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2042                                 {
2043                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2044                                         return 0;
2045                                 }
2046                                 if (precachemode == 1)
2047                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2048                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2049                                 if (sv.state != ss_loading)
2050                                 {
2051                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2052                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2053                                         MSG_WriteString(&sv.reliable_datagram, filename);
2054                                 }
2055                                 return i;
2056                         }
2057                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2058                         return 0;
2059                 }
2060                 if (!strcmp(sv.sound_precache[i], filename))
2061                         return i;
2062         }
2063         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2064         return 0;
2065 }
2066
2067 /*
2068 ================
2069 SV_ParticleEffectIndex
2070
2071 ================
2072 */
2073 int SV_ParticleEffectIndex(const char *name)
2074 {
2075         int i, argc, linenumber, effectnameindex;
2076         fs_offset_t filesize;
2077         unsigned char *filedata;
2078         const char *text, *textstart, *textend;
2079         char argv[16][1024];
2080         if (!sv.particleeffectnamesloaded)
2081         {
2082                 sv.particleeffectnamesloaded = true;
2083                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2084                 for (i = 0;i < EFFECT_TOTAL;i++)
2085                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2086                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2087                 if (filedata)
2088                 {
2089                         textstart = (const char *)filedata;
2090                         textend = (const char *)filedata + filesize;
2091                         text = textstart;
2092                         for (linenumber = 1;;linenumber++)
2093                         {
2094                                 argc = 0;
2095                                 for (;;)
2096                                 {
2097                                         if (!COM_ParseToken_Simple(&text, true) || !strcmp(com_token, "\n"))
2098                                                 break;
2099                                         if (argc < 16)
2100                                         {
2101                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2102                                                 argc++;
2103                                         }
2104                                 }
2105                                 if (com_token[0] == 0)
2106                                         break; // if the loop exited and it's not a \n, it's EOF
2107                                 if (argc < 1)
2108                                         continue;
2109                                 if (!strcmp(argv[0], "effect"))
2110                                 {
2111                                         if (argc == 2)
2112                                         {
2113                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2114                                                 {
2115                                                         if (sv.particleeffectname[effectnameindex][0])
2116                                                         {
2117                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2118                                                                         break;
2119                                                         }
2120                                                         else
2121                                                         {
2122                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2123                                                                 break;
2124                                                         }
2125                                                 }
2126                                                 // if we run out of names, abort
2127                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2128                                                 {
2129                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2130                                                         break;
2131                                                 }
2132                                         }
2133                                 }
2134                         }
2135                         Mem_Free(filedata);
2136                 }
2137         }
2138         // search for the name
2139         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2140                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2141                         return effectnameindex;
2142         // return 0 if we couldn't find it
2143         return 0;
2144 }
2145
2146 /*
2147 ================
2148 SV_CreateBaseline
2149
2150 ================
2151 */
2152 static void SV_CreateBaseline (void)
2153 {
2154         int i, entnum, large;
2155         prvm_edict_t *svent;
2156
2157         // LordHavoc: clear *all* states (note just active ones)
2158         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2159         {
2160                 // get the current server version
2161                 svent = PRVM_EDICT_NUM(entnum);
2162
2163                 // LordHavoc: always clear state values, whether the entity is in use or not
2164                 svent->priv.server->baseline = defaultstate;
2165
2166                 if (svent->priv.server->free)
2167                         continue;
2168                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2169                         continue;
2170
2171                 // create entity baseline
2172                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2173                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2174                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2175                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2176                 if (entnum > 0 && entnum <= svs.maxclients)
2177                 {
2178                         svent->priv.server->baseline.colormap = entnum;
2179                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2180                 }
2181                 else
2182                 {
2183                         svent->priv.server->baseline.colormap = 0;
2184                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2185                 }
2186
2187                 large = false;
2188                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2189                         large = true;
2190
2191                 // add to the message
2192                 if (large)
2193                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2194                 else
2195                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2196                 MSG_WriteShort (&sv.signon, entnum);
2197
2198                 if (large)
2199                 {
2200                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2201                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2202                 }
2203                 else
2204                 {
2205                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2206                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2207                 }
2208                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2209                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2210                 for (i=0 ; i<3 ; i++)
2211                 {
2212                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2213                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2214                 }
2215         }
2216 }
2217
2218
2219 /*
2220 ================
2221 SV_SaveSpawnparms
2222
2223 Grabs the current state of each client for saving across the
2224 transition to another level
2225 ================
2226 */
2227 void SV_SaveSpawnparms (void)
2228 {
2229         int             i, j;
2230
2231         svs.serverflags = (int)prog->globals.server->serverflags;
2232
2233         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2234         {
2235                 if (!host_client->active)
2236                         continue;
2237
2238         // call the progs to get default spawn parms for the new client
2239                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2240                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2241                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2242                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2243         }
2244 }
2245
2246 /*
2247 ================
2248 SV_SpawnServer
2249
2250 This is called at the start of each level
2251 ================
2252 */
2253
2254 void SV_SpawnServer (const char *server)
2255 {
2256         prvm_edict_t *ent;
2257         int i;
2258         char *entities;
2259         model_t *worldmodel;
2260         char modelname[sizeof(sv.modelname)];
2261
2262         Con_DPrintf("SpawnServer: %s\n", server);
2263
2264         if (cls.state != ca_dedicated)
2265                 SCR_BeginLoadingPlaque();
2266
2267         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2268         worldmodel = Mod_ForName(modelname, false, true, true);
2269         if (!worldmodel || !worldmodel->TraceBox)
2270         {
2271                 Con_Printf("Couldn't load map %s\n", modelname);
2272                 return;
2273         }
2274
2275         // let's not have any servers with no name
2276         if (hostname.string[0] == 0)
2277                 Cvar_Set ("hostname", "UNNAMED");
2278         scr_centertime_off = 0;
2279
2280         svs.changelevel_issued = false;         // now safe to issue another
2281
2282         // make the map a required file for clients
2283         Curl_ClearRequirements();
2284         Curl_RequireFile(modelname);
2285
2286 //
2287 // tell all connected clients that we are going to a new level
2288 //
2289         if (sv.active)
2290         {
2291                 client_t *client;
2292                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2293                 {
2294                         if (client->netconnection)
2295                         {
2296                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2297                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2298                         }
2299                 }
2300         }
2301         else
2302         {
2303                 // open server port
2304                 NetConn_OpenServerPorts(true);
2305         }
2306
2307 //
2308 // make cvars consistant
2309 //
2310         if (coop.integer)
2311                 Cvar_SetValue ("deathmatch", 0);
2312         // LordHavoc: it can be useful to have skills outside the range 0-3...
2313         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2314         //Cvar_SetValue ("skill", (float)current_skill);
2315         current_skill = (int)(skill.value + 0.5);
2316
2317 //
2318 // set up the new server
2319 //
2320         memset (&sv, 0, sizeof(sv));
2321         // if running a local client, make sure it doesn't try to access the last
2322         // level's data which is no longer valiud
2323         cls.signon = 0;
2324
2325         if(*sv_random_seed.string)
2326         {
2327                 srand(sv_random_seed.integer);
2328                 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);
2329         }
2330
2331         SV_VM_Setup();
2332
2333         sv.active = true;
2334
2335         strlcpy (sv.name, server, sizeof (sv.name));
2336
2337         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2338         if (sv.protocol == PROTOCOL_UNKNOWN)
2339         {
2340                 char buffer[1024];
2341                 Protocol_Names(buffer, sizeof(buffer));
2342                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2343                 sv.protocol = PROTOCOL_QUAKE;
2344         }
2345
2346         SV_VM_Begin();
2347
2348 // load progs to get entity field count
2349         //PR_LoadProgs ( sv_progs.string );
2350
2351         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2352         sv.datagram.cursize = 0;
2353         sv.datagram.data = sv.datagram_buf;
2354
2355         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2356         sv.reliable_datagram.cursize = 0;
2357         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2358
2359         sv.signon.maxsize = sizeof(sv.signon_buf);
2360         sv.signon.cursize = 0;
2361         sv.signon.data = sv.signon_buf;
2362
2363 // leave slots at start for clients only
2364         //prog->num_edicts = svs.maxclients+1;
2365
2366         sv.state = ss_loading;
2367         prog->allowworldwrites = true;
2368         sv.paused = false;
2369
2370         prog->globals.server->time = sv.time = 1.0;
2371
2372         Mod_ClearUsed();
2373         worldmodel->used = true;
2374
2375         strlcpy (sv.name, server, sizeof (sv.name));
2376         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2377         sv.worldmodel = worldmodel;
2378         sv.models[1] = sv.worldmodel;
2379
2380 //
2381 // clear world interaction links
2382 //
2383         VectorCopy(sv.worldmodel->normalmins, sv.world.areagrid_mins);
2384         VectorCopy(sv.worldmodel->normalmaxs, sv.world.areagrid_maxs);
2385         World_Clear(&sv.world);
2386
2387         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2388
2389         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2390         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2391         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2392         {
2393                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2394                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2395         }
2396
2397 //
2398 // load the rest of the entities
2399 //
2400         // AK possible hack since num_edicts is still 0
2401         ent = PRVM_EDICT_NUM(0);
2402         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2403         ent->priv.server->free = false;
2404         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2405         ent->fields.server->modelindex = 1;             // world model
2406         ent->fields.server->solid = SOLID_BSP;
2407         ent->fields.server->movetype = MOVETYPE_PUSH;
2408         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->mins);
2409         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->maxs);
2410         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->absmin);
2411         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->absmax);
2412
2413         if (coop.value)
2414                 prog->globals.server->coop = coop.integer;
2415         else
2416                 prog->globals.server->deathmatch = deathmatch.integer;
2417
2418         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2419
2420 // serverflags are for cross level information (sigils)
2421         prog->globals.server->serverflags = svs.serverflags;
2422
2423         // we need to reset the spawned flag on all connected clients here so that
2424         // their thinks don't run during startup (before PutClientInServer)
2425         // we also need to set up the client entities now
2426         // and we need to set the ->edict pointers to point into the progs edicts
2427         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2428         {
2429                 host_client->spawned = false;
2430                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2431                 PRVM_ED_ClearEdict(host_client->edict);
2432         }
2433
2434         // load replacement entity file if found
2435         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2436         {
2437                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2438                 PRVM_ED_LoadFromFile (entities);
2439                 Mem_Free(entities);
2440         }
2441         else
2442                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2443
2444
2445         // LordHavoc: clear world angles (to fix e3m3.bsp)
2446         VectorClear(prog->edicts->fields.server->angles);
2447
2448 // all setup is completed, any further precache statements are errors
2449         sv.state = ss_active;
2450         prog->allowworldwrites = false;
2451
2452 // run two frames to allow everything to settle
2453         for (i = 0;i < 2;i++)
2454         {
2455                 sv.frametime = 0.1;
2456                 SV_Physics ();
2457         }
2458
2459         Mod_PurgeUnused();
2460
2461 // create a baseline for more efficient communications
2462         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2463                 SV_CreateBaseline ();
2464
2465 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2466         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2467         {
2468                 if (!host_client->active)
2469                         continue;
2470                 if (host_client->netconnection)
2471                         SV_SendServerinfo(host_client);
2472                 else
2473                 {
2474                         int j;
2475                         // if client is a botclient coming from a level change, we need to
2476                         // set up client info that normally requires networking
2477
2478                         // copy spawn parms out of the client_t
2479                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2480                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2481
2482                         // call the spawn function
2483                         host_client->clientconnectcalled = true;
2484                         prog->globals.server->time = sv.time;
2485                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2486                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2487                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2488                         host_client->spawned = true;
2489                 }
2490         }
2491
2492         Con_DPrint("Server spawned.\n");
2493         NetConn_Heartbeat (2);
2494
2495         SV_VM_End();
2496 }
2497
2498 /////////////////////////////////////////////////////
2499 // SV VM stuff
2500
2501 static void SV_VM_CB_BeginIncreaseEdicts(void)
2502 {
2503         int i;
2504         prvm_edict_t *ent;
2505
2506         // links don't survive the transition, so unlink everything
2507         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2508         {
2509                 if (!ent->priv.server->free)
2510                         World_UnlinkEdict(prog->edicts + i);
2511                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
2512         }
2513         World_Clear(&sv.world);
2514 }
2515
2516 static void SV_VM_CB_EndIncreaseEdicts(void)
2517 {
2518         int i;
2519         prvm_edict_t *ent;
2520
2521         // link every entity except world
2522         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2523                 if (!ent->priv.server->free)
2524                         SV_LinkEdict(ent, false);
2525 }
2526
2527 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2528 {
2529         // LordHavoc: for consistency set these here
2530         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2531
2532         e->priv.server->move = false; // don't move on first frame
2533
2534         if (num >= 0 && num < svs.maxclients)
2535         {
2536                 prvm_eval_t *val;
2537                 // set colormap and team on newly created player entity
2538                 e->fields.server->colormap = num + 1;
2539                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
2540                 // set netname/clientcolors back to client values so that
2541                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
2542                 // reset them
2543                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
2544                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
2545                         val->_float = svs.clients[num].colors;
2546                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
2547                 if( prog->fieldoffsets.playermodel >= 0 )
2548                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
2549                 if( prog->fieldoffsets.playerskin >= 0 )
2550                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
2551                 // Assign netaddress (IP Address, etc)
2552                 if(prog->fieldoffsets.netaddress >= 0)
2553                 { // Valid Field; Process
2554                         if(svs.clients[num].netconnection != NULL)
2555                         {// Valid Address; Assign
2556                                 // Acquire Readable Address
2557                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
2558                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
2559                         }
2560                         else
2561                                 // Invalid / Bot
2562                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
2563                 }
2564         }
2565 }
2566
2567 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
2568 {
2569         World_UnlinkEdict(ed);          // unlink from world bsp
2570
2571         ed->fields.server->model = 0;
2572         ed->fields.server->takedamage = 0;
2573         ed->fields.server->modelindex = 0;
2574         ed->fields.server->colormap = 0;
2575         ed->fields.server->skin = 0;
2576         ed->fields.server->frame = 0;
2577         VectorClear(ed->fields.server->origin);
2578         VectorClear(ed->fields.server->angles);
2579         ed->fields.server->nextthink = -1;
2580         ed->fields.server->solid = 0;
2581 }
2582
2583 static void SV_VM_CB_CountEdicts(void)
2584 {
2585         int             i;
2586         prvm_edict_t    *ent;
2587         int             active, models, solid, step;
2588
2589         active = models = solid = step = 0;
2590         for (i=0 ; i<prog->num_edicts ; i++)
2591         {
2592                 ent = PRVM_EDICT_NUM(i);
2593                 if (ent->priv.server->free)
2594                         continue;
2595                 active++;
2596                 if (ent->fields.server->solid)
2597                         solid++;
2598                 if (ent->fields.server->model)
2599                         models++;
2600                 if (ent->fields.server->movetype == MOVETYPE_STEP)
2601                         step++;
2602         }
2603
2604         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
2605         Con_Printf("active    :%3i\n", active);
2606         Con_Printf("view      :%3i\n", models);
2607         Con_Printf("touch     :%3i\n", solid);
2608         Con_Printf("step      :%3i\n", step);
2609 }
2610
2611 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
2612 {
2613         // remove things from different skill levels or deathmatch
2614         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
2615         {
2616                 if (deathmatch.integer)
2617                 {
2618                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
2619                         {
2620                                 return false;
2621                         }
2622                 }
2623                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
2624                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
2625                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
2626                 {
2627                         return false;
2628                 }
2629         }
2630         return true;
2631 }
2632
2633 static void SV_VM_Setup(void)
2634 {
2635         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
2636         extern cvar_t csqc_progcrc;
2637         extern cvar_t csqc_progsize;
2638         size_t csprogsdatasize;
2639         PRVM_Begin;
2640         PRVM_InitProg( PRVM_SERVERPROG );
2641
2642         // allocate the mempools
2643         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
2644         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
2645         prog->builtins = vm_sv_builtins;
2646         prog->numbuiltins = vm_sv_numbuiltins;
2647         prog->headercrc = PROGHEADER_CRC;
2648         prog->max_edicts = 512;
2649         if (sv.protocol == PROTOCOL_QUAKE)
2650                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
2651         else if (sv.protocol == PROTOCOL_QUAKEDP)
2652                 prog->limit_edicts = 2048; // guessing
2653         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2654                 prog->limit_edicts = 2048; // guessing!
2655         else
2656                 prog->limit_edicts = MAX_EDICTS;
2657         prog->reserved_edicts = svs.maxclients;
2658         prog->edictprivate_size = sizeof(edict_engineprivate_t);
2659         prog->name = "server";
2660         prog->extensionstring = vm_sv_extensions;
2661         prog->loadintoworld = true;
2662
2663         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
2664         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
2665         prog->init_edict = SV_VM_CB_InitEdict;
2666         prog->free_edict = SV_VM_CB_FreeEdict;
2667         prog->count_edicts = SV_VM_CB_CountEdicts;
2668         prog->load_edict = SV_VM_CB_LoadEdict;
2669         prog->init_cmd = VM_SV_Cmd_Init;
2670         prog->reset_cmd = VM_SV_Cmd_Reset;
2671         prog->error_cmd = Host_Error;
2672
2673         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
2674         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
2675
2676         // some mods compiled with scrambling compilers lack certain critical
2677         // global names and field names such as "self" and "time" and "nextthink"
2678         // so we have to set these offsets manually, matching the entvars_t
2679         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
2680         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
2681         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
2682         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
2683         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
2684         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
2685         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
2686         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
2687         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
2688         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
2689         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
2690         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
2691         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
2692         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
2693         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
2694         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
2695         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
2696         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
2697         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
2698         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
2699         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
2700         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
2701         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
2702         // OP_STATE is always supported on server (due to entvars_t)
2703         prog->flag |= PRVM_OP_STATE;
2704
2705         VM_CustomStats_Clear();//[515]: csqc
2706
2707         PRVM_End;
2708
2709         // see if there is a csprogs.dat installed, and if so, set the csqc_progcrc accordingly, this will be sent to connecting clients to tell them to only load a matching csprogs.dat file
2710         sv.csqc_progname[0] = 0;
2711         sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
2712         sv.csqc_progsize = csprogsdatasize;
2713         if (sv.csqc_progsize > 0)
2714         {
2715                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2716                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2717         }
2718 }
2719
2720 void SV_VM_Begin(void)
2721 {
2722         PRVM_Begin;
2723         PRVM_SetProg( PRVM_SERVERPROG );
2724
2725         prog->globals.server->time = (float) sv.time;
2726 }
2727
2728 void SV_VM_End(void)
2729 {
2730         PRVM_End;
2731 }