add a DEMOMSG_CLIENT_TO_SERVER flag to demos (0x80000000) in the size field; packets...
[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 "sv_demo.h"
24 #include "libcurl.h"
25
26 static void SV_SaveEntFile_f(void);
27 static void SV_StartDownload_f(void);
28 static void SV_Download_f(void);
29 static void SV_VM_Setup();
30
31 void VM_CustomStats_Clear (void);
32 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
33 void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int numstates, const entity_state_t *states);
34
35 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)"};
36 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)"};
37 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
38 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
39 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
40 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
41 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
42 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)"};
43 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
44 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)"};
45 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
46
47 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
48 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"};
49 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
50 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
51 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"};
52 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
53 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
54 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
55 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
56 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
57 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"};
58 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"};
59 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"};
60 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)"};
61 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)"};
62 cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "4", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
63 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!)"};
64 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
65 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
66 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"};
67 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
68 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
69 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
70 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
71 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"};
72 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
73 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
74 cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
75 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)"};
76 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "1", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
77 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
78 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
79 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"};
80 cvar_t sv_gameplayfix_delayprojectiles = {0, "sv_gameplayfix_delayprojectiles", "1", "causes entities to not move on the same frame they are spawned, meaning that projectiles wait until the next frame to perform their first move, giving proper interpolation and rocket trails, but making weapons harder to use at low framerates"};
81 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)"};
82 cvar_t sv_gameplayfix_easierwaterjump = {0, "sv_gameplayfix_easierwaterjump", "1", "changes water jumping to make it easier to get out of water (exactly like in QuakeWorld)"};
83 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"};
84 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
85 cvar_t sv_gameplayfix_multiplethinksperframe = {0, "sv_gameplayfix_multiplethinksperframe", "1", "allows entities to think more often than the server framerate, primarily useful for very high fire rate weapons"};
86 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"};
87 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"};
88 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)"};
89 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)"};
90 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"};
91 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"};
92 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
93 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
94 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
95 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
96 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)"};
97 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
98 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
99 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
100 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
101 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
102 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
103 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
104 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
105 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"};
106 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)"};
107 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)"};
108 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)"};
109 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
110 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
111 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
112 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"};
113 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"};
114 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.0138889", "how long a server frame is in seconds, 0.05 is 20fps server rate, 0.1 is 10fps (can not be set higher than 0.1), 0 runs as many server frames as possible (makes games against bots a little smoother, overwhelms network players), 0.0138889 matches QuakeWorld physics"};
115 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"};
116 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
117
118 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
119 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
120 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
121 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
122 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
123 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
124 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
125 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
126 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
127 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)"};
128
129 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
130 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
131 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
132 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
133 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
134 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
135 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
136 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
137 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
138 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
139 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
140 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
141 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
142 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
143 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
144 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
145 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
146 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
147 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
148 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
149 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
150
151 cvar_t sv_autodemo_perclient = {CVAR_SAVE, "sv_autodemo_perclient", "0", "set to 1 to enable autorecorded per-client demos (they'll start to record at the beginning of a match); set it to 2 to also record client->server packets (for debugging)"};
152 cvar_t sv_autodemo_perclient_nameformat = {CVAR_SAVE, "sv_autodemo_perclient_nameformat", "sv_autodemos/%Y-%m-%d_%H-%M", "The format of the sv_autodemo_perclient filename, followed by the map name, the IP address + port number, and the client number, separated by underscores" };
153
154
155 server_t sv;
156 server_static_t svs;
157
158 mempool_t *sv_mempool = NULL;
159
160 extern cvar_t slowmo;
161 extern float            scr_centertime_off;
162
163 // MUST match effectnameindex_t in client.h
164 static const char *standardeffectnames[EFFECT_TOTAL] =
165 {
166         "",
167         "TE_GUNSHOT",
168         "TE_GUNSHOTQUAD",
169         "TE_SPIKE",
170         "TE_SPIKEQUAD",
171         "TE_SUPERSPIKE",
172         "TE_SUPERSPIKEQUAD",
173         "TE_WIZSPIKE",
174         "TE_KNIGHTSPIKE",
175         "TE_EXPLOSION",
176         "TE_EXPLOSIONQUAD",
177         "TE_TAREXPLOSION",
178         "TE_TELEPORT",
179         "TE_LAVASPLASH",
180         "TE_SMALLFLASH",
181         "TE_FLAMEJET",
182         "EF_FLAME",
183         "TE_BLOOD",
184         "TE_SPARK",
185         "TE_PLASMABURN",
186         "TE_TEI_G3",
187         "TE_TEI_SMOKE",
188         "TE_TEI_BIGEXPLOSION",
189         "TE_TEI_PLASMAHIT",
190         "EF_STARDUST",
191         "TR_ROCKET",
192         "TR_GRENADE",
193         "TR_BLOOD",
194         "TR_WIZSPIKE",
195         "TR_SLIGHTBLOOD",
196         "TR_KNIGHTSPIKE",
197         "TR_VORESPIKE",
198         "TR_NEHAHRASMOKE",
199         "TR_NEXUIZPLASMA",
200         "TR_GLOWTRAIL",
201         "SVC_PARTICLE"
202 };
203
204 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
205
206 prvm_required_field_t reqfields[] =
207 {
208         {ev_entity, "cursor_trace_ent"},
209         {ev_entity, "drawonlytoclient"},
210         {ev_entity, "exteriormodeltoclient"},
211         {ev_entity, "nodrawtoclient"},
212         {ev_entity, "tag_entity"},
213         {ev_entity, "viewmodelforclient"},
214         {ev_float, "Version"},
215         {ev_float, "alpha"},
216         {ev_float, "ammo_cells1"},
217         {ev_float, "ammo_lava_nails"},
218         {ev_float, "ammo_multi_rockets"},
219         {ev_float, "ammo_nails1"},
220         {ev_float, "ammo_plasma"},
221         {ev_float, "ammo_rockets1"},
222         {ev_float, "ammo_shells1"},
223         {ev_float, "button3"},
224         {ev_float, "button4"},
225         {ev_float, "button5"},
226         {ev_float, "button6"},
227         {ev_float, "button7"},
228         {ev_float, "button8"},
229         {ev_float, "button9"},
230         {ev_float, "button10"},
231         {ev_float, "button11"},
232         {ev_float, "button12"},
233         {ev_float, "button13"},
234         {ev_float, "button14"},
235         {ev_float, "button15"},
236         {ev_float, "button16"},
237         {ev_float, "buttonchat"},
238         {ev_float, "buttonuse"},
239         {ev_float, "clientcolors"},
240         {ev_float, "cursor_active"},
241         {ev_float, "disableclientprediction"},
242         {ev_float, "fullbright"},
243         {ev_float, "glow_color"},
244         {ev_float, "glow_size"},
245         {ev_float, "glow_trail"},
246         {ev_float, "gravity"},
247         {ev_float, "idealpitch"},
248         {ev_float, "items2"},
249         {ev_float, "light_lev"},
250         {ev_float, "modelflags"},
251         {ev_float, "pflags"},
252         {ev_float, "ping"},
253         {ev_float, "pitch_speed"},
254         {ev_float, "pmodel"},
255         {ev_float, "renderamt"}, // HalfLife support
256         {ev_float, "rendermode"}, // HalfLife support
257         {ev_float, "scale"},
258         {ev_float, "style"},
259         {ev_float, "tag_index"},
260         {ev_float, "viewzoom"},
261         {ev_function, "SendEntity"},
262         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
263         {ev_function, "customizeentityforclient"},
264         {ev_string, "netaddress"},
265         {ev_string, "playermodel"},
266         {ev_string, "playerskin"},
267         {ev_vector, "color"},
268         {ev_vector, "colormod"},
269         {ev_vector, "cursor_screen"},
270         {ev_vector, "cursor_trace_endpos"},
271         {ev_vector, "cursor_trace_start"},
272         {ev_vector, "movement"},
273         {ev_vector, "punchvector"},
274 };
275
276
277
278 //============================================================================
279
280 void SV_AreaStats_f(void)
281 {
282         World_PrintAreaStats(&sv.world, "server");
283 }
284
285 /*
286 ===============
287 SV_Init
288 ===============
289 */
290 void SV_Init (void)
291 {
292         // init the csqc progs cvars, since they are updated/used by the server code
293         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
294         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
295         extern cvar_t csqc_progcrc;
296         extern cvar_t csqc_progsize;
297         Cvar_RegisterVariable (&csqc_progname);
298         Cvar_RegisterVariable (&csqc_progcrc);
299         Cvar_RegisterVariable (&csqc_progsize);
300
301         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
302         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
303         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
304         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
305
306         Cvar_RegisterVariable (&coop);
307         Cvar_RegisterVariable (&deathmatch);
308         Cvar_RegisterVariable (&fraglimit);
309         Cvar_RegisterVariable (&gamecfg);
310         Cvar_RegisterVariable (&noexit);
311         Cvar_RegisterVariable (&nomonsters);
312         Cvar_RegisterVariable (&pausable);
313         Cvar_RegisterVariable (&pr_checkextension);
314         Cvar_RegisterVariable (&samelevel);
315         Cvar_RegisterVariable (&skill);
316         Cvar_RegisterVariable (&slowmo);
317         Cvar_RegisterVariable (&sv_accelerate);
318         Cvar_RegisterVariable (&sv_aim);
319         Cvar_RegisterVariable (&sv_airaccel_qw);
320         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
321         Cvar_RegisterVariable (&sv_airaccelerate);
322         Cvar_RegisterVariable (&sv_allowdownloads);
323         Cvar_RegisterVariable (&sv_allowdownloads_archive);
324         Cvar_RegisterVariable (&sv_allowdownloads_config);
325         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
326         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
327         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
328         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
329         Cvar_RegisterVariable (&sv_clmovement_enable);
330         Cvar_RegisterVariable (&sv_clmovement_minping);
331         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
332         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
333         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
334         Cvar_RegisterVariable (&sv_cullentities_pvs);
335         Cvar_RegisterVariable (&sv_cullentities_stats);
336         Cvar_RegisterVariable (&sv_cullentities_trace);
337         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
338         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
339         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
340         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
341         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
342         Cvar_RegisterVariable (&sv_debugmove);
343         Cvar_RegisterVariable (&sv_echobprint);
344         Cvar_RegisterVariable (&sv_edgefriction);
345         Cvar_RegisterVariable (&sv_entpatch);
346         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
347         Cvar_RegisterVariable (&sv_freezenonclients);
348         Cvar_RegisterVariable (&sv_friction);
349         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
350         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
351         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
352         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
353         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
354         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
355         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
356         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
357         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
358         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
359         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
360         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
361         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
362         Cvar_RegisterVariable (&sv_gravity);
363         Cvar_RegisterVariable (&sv_idealpitchscale);
364         Cvar_RegisterVariable (&sv_jumpstep);
365         Cvar_RegisterVariable (&sv_jumpvelocity);
366         Cvar_RegisterVariable (&sv_maxairspeed);
367         Cvar_RegisterVariable (&sv_maxrate);
368         Cvar_RegisterVariable (&sv_maxspeed);
369         Cvar_RegisterVariable (&sv_maxvelocity);
370         Cvar_RegisterVariable (&sv_newflymove);
371         Cvar_RegisterVariable (&sv_nostep);
372         Cvar_RegisterVariable (&sv_playerphysicsqc);
373         Cvar_RegisterVariable (&sv_progs);
374         Cvar_RegisterVariable (&sv_protocolname);
375         Cvar_RegisterVariable (&sv_random_seed);
376         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
377         Cvar_RegisterVariable (&sv_sound_land);
378         Cvar_RegisterVariable (&sv_sound_watersplash);
379         Cvar_RegisterVariable (&sv_stepheight);
380         Cvar_RegisterVariable (&sv_stopspeed);
381         Cvar_RegisterVariable (&sv_wallfriction);
382         Cvar_RegisterVariable (&sv_wateraccelerate);
383         Cvar_RegisterVariable (&sv_waterfriction);
384         Cvar_RegisterVariable (&sys_ticrate);
385         Cvar_RegisterVariable (&teamplay);
386         Cvar_RegisterVariable (&timelimit);
387
388         Cvar_RegisterVariable (&saved1);
389         Cvar_RegisterVariable (&saved2);
390         Cvar_RegisterVariable (&saved3);
391         Cvar_RegisterVariable (&saved4);
392         Cvar_RegisterVariable (&savedgamecfg);
393         Cvar_RegisterVariable (&scratch1);
394         Cvar_RegisterVariable (&scratch2);
395         Cvar_RegisterVariable (&scratch3);
396         Cvar_RegisterVariable (&scratch4);
397         Cvar_RegisterVariable (&temp1);
398
399         // LordHavoc: Nehahra uses these to pass data around cutscene demos
400         if (gamemode == GAME_NEHAHRA)
401         {
402                 Cvar_RegisterVariable (&nehx00);
403                 Cvar_RegisterVariable (&nehx01);
404                 Cvar_RegisterVariable (&nehx02);
405                 Cvar_RegisterVariable (&nehx03);
406                 Cvar_RegisterVariable (&nehx04);
407                 Cvar_RegisterVariable (&nehx05);
408                 Cvar_RegisterVariable (&nehx06);
409                 Cvar_RegisterVariable (&nehx07);
410                 Cvar_RegisterVariable (&nehx08);
411                 Cvar_RegisterVariable (&nehx09);
412                 Cvar_RegisterVariable (&nehx10);
413                 Cvar_RegisterVariable (&nehx11);
414                 Cvar_RegisterVariable (&nehx12);
415                 Cvar_RegisterVariable (&nehx13);
416                 Cvar_RegisterVariable (&nehx14);
417                 Cvar_RegisterVariable (&nehx15);
418                 Cvar_RegisterVariable (&nehx16);
419                 Cvar_RegisterVariable (&nehx17);
420                 Cvar_RegisterVariable (&nehx18);
421                 Cvar_RegisterVariable (&nehx19);
422         }
423         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
424
425         Cvar_RegisterVariable (&sv_autodemo_perclient);
426         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
427
428         // any special defaults for gamemodes go here
429         if (gamemode == GAME_HIPNOTIC)
430         {
431                 // 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.
432                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
433         }
434         if (gamemode == GAME_ROGUE)
435         {
436                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
437                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
438         }
439
440         sv_mempool = Mem_AllocPool("server", 0, NULL);
441 }
442
443 static void SV_SaveEntFile_f(void)
444 {
445         char basename[MAX_QPATH];
446         if (!sv.active || !sv.worldmodel)
447         {
448                 Con_Print("Not running a server\n");
449                 return;
450         }
451         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
452         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
453 }
454
455
456 /*
457 =============================================================================
458
459 EVENT MESSAGES
460
461 =============================================================================
462 */
463
464 /*
465 ==================
466 SV_StartParticle
467
468 Make sure the event gets sent to all clients
469 ==================
470 */
471 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
472 {
473         int i;
474
475         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
476                 return;
477         MSG_WriteByte (&sv.datagram, svc_particle);
478         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
479         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
480         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
481         for (i=0 ; i<3 ; i++)
482                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
483         MSG_WriteByte (&sv.datagram, count);
484         MSG_WriteByte (&sv.datagram, color);
485         SV_FlushBroadcastMessages();
486 }
487
488 /*
489 ==================
490 SV_StartEffect
491
492 Make sure the event gets sent to all clients
493 ==================
494 */
495 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
496 {
497         if (modelindex >= 256 || startframe >= 256)
498         {
499                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
500                         return;
501                 MSG_WriteByte (&sv.datagram, svc_effect2);
502                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
503                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
504                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
505                 MSG_WriteShort (&sv.datagram, modelindex);
506                 MSG_WriteShort (&sv.datagram, startframe);
507                 MSG_WriteByte (&sv.datagram, framecount);
508                 MSG_WriteByte (&sv.datagram, framerate);
509         }
510         else
511         {
512                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
513                         return;
514                 MSG_WriteByte (&sv.datagram, svc_effect);
515                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
516                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
517                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
518                 MSG_WriteByte (&sv.datagram, modelindex);
519                 MSG_WriteByte (&sv.datagram, startframe);
520                 MSG_WriteByte (&sv.datagram, framecount);
521                 MSG_WriteByte (&sv.datagram, framerate);
522         }
523         SV_FlushBroadcastMessages();
524 }
525
526 /*
527 ==================
528 SV_StartSound
529
530 Each entity can have eight independant sound sources, like voice,
531 weapon, feet, etc.
532
533 Channel 0 is an auto-allocate channel, the others override anything
534 already running on that entity/channel pair.
535
536 An attenuation of 0 will play full volume everywhere in the level.
537 Larger attenuations will drop off.  (max 4 attenuation)
538
539 ==================
540 */
541 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
542 {
543         int sound_num, field_mask, i, ent;
544
545         if (volume < 0 || volume > 255)
546         {
547                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
548                 return;
549         }
550
551         if (attenuation < 0 || attenuation > 4)
552         {
553                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
554                 return;
555         }
556
557         if (channel < 0 || channel > 7)
558         {
559                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
560                 return;
561         }
562
563         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
564                 return;
565
566 // find precache number for sound
567         sound_num = SV_SoundIndex(sample, 1);
568         if (!sound_num)
569                 return;
570
571         ent = PRVM_NUM_FOR_EDICT(entity);
572
573         field_mask = 0;
574         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
575                 field_mask |= SND_VOLUME;
576         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
577                 field_mask |= SND_ATTENUATION;
578         if (ent >= 8192)
579                 field_mask |= SND_LARGEENTITY;
580         if (sound_num >= 256 || channel >= 8)
581                 field_mask |= SND_LARGESOUND;
582
583 // directed messages go only to the entity they are targeted on
584         MSG_WriteByte (&sv.datagram, svc_sound);
585         MSG_WriteByte (&sv.datagram, field_mask);
586         if (field_mask & SND_VOLUME)
587                 MSG_WriteByte (&sv.datagram, volume);
588         if (field_mask & SND_ATTENUATION)
589                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
590         if (field_mask & SND_LARGEENTITY)
591         {
592                 MSG_WriteShort (&sv.datagram, ent);
593                 MSG_WriteByte (&sv.datagram, channel);
594         }
595         else
596                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
597         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
598                 MSG_WriteShort (&sv.datagram, sound_num);
599         else
600                 MSG_WriteByte (&sv.datagram, sound_num);
601         for (i = 0;i < 3;i++)
602                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
603         SV_FlushBroadcastMessages();
604 }
605
606 /*
607 ==================
608 SV_StartPointSound
609
610 Nearly the same logic as SV_StartSound, except an origin
611 instead of an entity is provided and channel is omitted.
612
613 The entity sent to the client is 0 (world) and the channel
614 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
615 function, therefore the check for it is omitted.
616
617 ==================
618 */
619 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
620 {
621         int sound_num, field_mask, i;
622
623         if (volume < 0 || volume > 255)
624         {
625                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
626                 return;
627         }
628
629         if (attenuation < 0 || attenuation > 4)
630         {
631                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
632                 return;
633         }
634
635         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
636                 return;
637
638         // find precache number for sound
639         sound_num = SV_SoundIndex(sample, 1);
640         if (!sound_num)
641                 return;
642
643         field_mask = 0;
644         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
645                 field_mask |= SND_VOLUME;
646         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
647                 field_mask |= SND_ATTENUATION;
648         if (sound_num >= 256)
649                 field_mask |= SND_LARGESOUND;
650
651 // directed messages go only to the entity they are targeted on
652         MSG_WriteByte (&sv.datagram, svc_sound);
653         MSG_WriteByte (&sv.datagram, field_mask);
654         if (field_mask & SND_VOLUME)
655                 MSG_WriteByte (&sv.datagram, volume);
656         if (field_mask & SND_ATTENUATION)
657                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
658         // Always write entnum 0 for the world entity
659         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
660         if (field_mask & SND_LARGESOUND)
661                 MSG_WriteShort (&sv.datagram, sound_num);
662         else
663                 MSG_WriteByte (&sv.datagram, sound_num);
664         for (i = 0;i < 3;i++)
665                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
666         SV_FlushBroadcastMessages();
667 }
668
669 /*
670 ==============================================================================
671
672 CLIENT SPAWNING
673
674 ==============================================================================
675 */
676
677 /*
678 ================
679 SV_SendServerinfo
680
681 Sends the first message from the server to a connected client.
682 This will be sent on the initial connection and upon each server load.
683 ================
684 */
685 void SV_SendServerinfo (client_t *client)
686 {
687         int i;
688         char message[128];
689
690         // we know that this client has a netconnection and thus is not a bot
691
692         // edicts get reallocated on level changes, so we need to update it here
693         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
694
695         // clear cached stuff that depends on the level
696         client->weaponmodel[0] = 0;
697         client->weaponmodelindex = 0;
698
699         // LordHavoc: clear entityframe tracking
700         client->latestframenum = 0;
701
702         // initialize the movetime, so a speedhack can't make use of the time before this client joined
703         client->cmd.time = sv.time;
704
705         if (client->entitydatabase)
706                 EntityFrame_FreeDatabase(client->entitydatabase);
707         if (client->entitydatabase4)
708                 EntityFrame4_FreeDatabase(client->entitydatabase4);
709         if (client->entitydatabase5)
710                 EntityFrame5_FreeDatabase(client->entitydatabase5);
711
712         memset(client->stats, 0, sizeof(client->stats));
713         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
714
715         if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
716         {
717                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
718                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
719                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
720                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
721                 else
722                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
723         }
724
725         // reset csqc entity versions
726         memset(client->csqcentityversion, 0, sizeof(client->csqcentityversion));
727
728         SZ_Clear (&client->netconnection->message);
729         MSG_WriteByte (&client->netconnection->message, svc_print);
730         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
731         MSG_WriteString (&client->netconnection->message,message);
732
733         //[515]: init csprogs according to version of svprogs, check the crc, etc.
734         if (sv.csqc_progname[0])
735         {
736                 prvm_eval_t *val;
737                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
738                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
739                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
740                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
741                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
742                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
743                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
744                 //[515]: init stufftext string (it is sent before svc_serverinfo)
745                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
746                 if (val)
747                 {
748                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
749                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
750                 }
751         }
752
753         if (sv_allowdownloads.integer)
754         {
755                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
756                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1\n");
757         }
758
759         // send at this time so it's guaranteed to get executed at the right time
760         {
761                 client_t *save;
762                 save = host_client;
763                 host_client = client;
764                 Curl_SendRequirements();
765                 host_client = save;
766         }
767
768         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
769         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
770         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
771
772         if (!coop.integer && deathmatch.integer)
773                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
774         else
775                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
776
777         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
778
779         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
780                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
781         MSG_WriteByte (&client->netconnection->message, 0);
782
783         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
784                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
785         MSG_WriteByte (&client->netconnection->message, 0);
786
787 // send music
788         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
789         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
790         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
791
792 // set view
793 // store this in clientcamera, too
794         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
795         MSG_WriteByte (&client->netconnection->message, svc_setview);
796         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
797         
798         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
799         MSG_WriteByte (&client->netconnection->message, 1);
800
801         client->spawned = false;                // need prespawn, spawn, etc
802         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
803
804         // clear movement info until client enters the new level properly
805         memset(&client->cmd, 0, sizeof(client->cmd));
806         client->movesequence = 0;
807 #ifdef NUM_PING_TIMES
808         for (i = 0;i < NUM_PING_TIMES;i++)
809                 client->ping_times[i] = 0;
810         client->num_pings = 0;
811 #endif
812         client->ping = 0;
813
814         SV_StopDemoRecording(client); // to split up demos into different files
815         if(sv_autodemo_perclient.integer && client->netconnection)
816         {
817                 char demofile[MAX_OSPATH];
818                 char levelname[MAX_QPATH];
819                 char ipaddress[MAX_QPATH];
820                 size_t i;
821
822                 // start a new demo file
823                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
824                 if (strrchr(levelname, '.'))
825                         *(strrchr(levelname, '.')) = 0;
826
827                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
828                 for(i = 0; ipaddress[i]; ++i)
829                         if(!isalnum(ipaddress[i]))
830                                 ipaddress[i] = '-';
831                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%s_%d.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, ipaddress, PRVM_NUM_FOR_EDICT(client->edict));
832
833                 SV_StartDemoRecording(client, demofile, -1);
834         }
835 }
836
837 /*
838 ================
839 SV_ConnectClient
840
841 Initializes a client_t for a new net connection.  This will only be called
842 once for a player each game, not once for each level change.
843 ================
844 */
845 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
846 {
847         client_t                *client;
848         int                             i;
849         float                   spawn_parms[NUM_SPAWN_PARMS];
850
851         client = svs.clients + clientnum;
852
853 // set up the client_t
854         if (sv.loadgame)
855                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
856         memset (client, 0, sizeof(*client));
857         client->active = true;
858         client->netconnection = netconnection;
859
860         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
861
862         strlcpy(client->name, "unconnected", sizeof(client->name));
863         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
864         client->spawned = false;
865         client->edict = PRVM_EDICT_NUM(clientnum+1);
866         if (client->netconnection)
867                 client->netconnection->message.allowoverflow = true;            // we can catch it
868         // prepare the unreliable message buffer
869         client->unreliablemsg.data = client->unreliablemsg_data;
870         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
871         // updated by receiving "rate" command from client, this is also the default if not using a DP client
872         client->rate = 1000000000;
873         // no limits for local player
874         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
875                 client->rate = 1000000000;
876         client->connecttime = realtime;
877
878         if (sv.loadgame)
879                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
880         else
881         {
882                 // call the progs to get default spawn parms for the new client
883                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
884                 prog->globals.server->self = 0;
885                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
886                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
887                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
888
889                 // set up the entity for this client (including .colormap, .team, etc)
890                 PRVM_ED_ClearEdict(client->edict);
891         }
892
893         // don't call SendServerinfo for a fresh botclient because its fields have
894         // not been set up by the qc yet
895         if (client->netconnection)
896                 SV_SendServerinfo (client);
897         else
898                 client->spawned = true;
899 }
900
901
902 /*
903 ===============================================================================
904
905 FRAME UPDATES
906
907 ===============================================================================
908 */
909
910 /*
911 =============================================================================
912
913 The PVS must include a small area around the client to allow head bobbing
914 or other small motion on the client side.  Otherwise, a bob might cause an
915 entity that should be visible to not show up, especially when the bob
916 crosses a waterline.
917
918 =============================================================================
919 */
920
921 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
922 {
923         int i;
924         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
925         unsigned int customizeentityforclient;
926         float f;
927         vec3_t cullmins, cullmaxs;
928         model_t *model;
929         prvm_eval_t *val;
930
931         // this 2 billion unit check is actually to detect NAN origins
932         // (we really don't want to send those)
933         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
934                 return false;
935
936         // EF_NODRAW prevents sending for any reason except for your own
937         // client, so we must keep all clients in this superset
938         effects = (unsigned)ent->fields.server->effects;
939
940         // we can omit invisible entities with no effects that are not clients
941         // LordHavoc: this could kill tags attached to an invisible entity, I
942         // just hope we never have to support that case
943         i = (int)ent->fields.server->modelindex;
944         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
945
946         flags = 0;
947         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
948         glowsize = (unsigned char)bound(0, i, 255);
949         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
950                 flags |= RENDER_GLOWTRAIL;
951         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
952                 flags |= RENDER_VIEWMODEL;
953
954         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
955         light[0] = (unsigned short)bound(0, f, 65535);
956         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
957         light[1] = (unsigned short)bound(0, f, 65535);
958         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
959         light[2] = (unsigned short)bound(0, f, 65535);
960         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
961         light[3] = (unsigned short)bound(0, f, 65535);
962         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
963         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
964
965         if (gamemode == GAME_TENEBRAE)
966         {
967                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
968                 if (effects & 16)
969                 {
970                         effects &= ~16;
971                         lightpflags |= PFLAGS_FULLDYNAMIC;
972                 }
973                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
974                 if (effects & 32)
975                 {
976                         effects &= ~32;
977                         light[0] = (int)(0.2*256);
978                         light[1] = (int)(1.0*256);
979                         light[2] = (int)(0.2*256);
980                         light[3] = 200;
981                         lightpflags |= PFLAGS_FULLDYNAMIC;
982                 }
983         }
984
985         specialvisibilityradius = 0;
986         if (lightpflags & PFLAGS_FULLDYNAMIC)
987                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
988         if (glowsize)
989                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
990         if (flags & RENDER_GLOWTRAIL)
991                 specialvisibilityradius = max(specialvisibilityradius, 100);
992         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
993         {
994                 if (effects & EF_BRIGHTFIELD)
995                         specialvisibilityradius = max(specialvisibilityradius, 80);
996                 if (effects & EF_MUZZLEFLASH)
997                         specialvisibilityradius = max(specialvisibilityradius, 100);
998                 if (effects & EF_BRIGHTLIGHT)
999                         specialvisibilityradius = max(specialvisibilityradius, 400);
1000                 if (effects & EF_DIMLIGHT)
1001                         specialvisibilityradius = max(specialvisibilityradius, 200);
1002                 if (effects & EF_RED)
1003                         specialvisibilityradius = max(specialvisibilityradius, 200);
1004                 if (effects & EF_BLUE)
1005                         specialvisibilityradius = max(specialvisibilityradius, 200);
1006                 if (effects & EF_FLAME)
1007                         specialvisibilityradius = max(specialvisibilityradius, 250);
1008                 if (effects & EF_STARDUST)
1009                         specialvisibilityradius = max(specialvisibilityradius, 100);
1010         }
1011
1012         // early culling checks
1013         // (final culling is done by SV_MarkWriteEntityStateToClient)
1014         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1015         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1016                 return false;
1017
1018         *cs = defaultstate;
1019         cs->active = true;
1020         cs->number = enumber;
1021         VectorCopy(ent->fields.server->origin, cs->origin);
1022         VectorCopy(ent->fields.server->angles, cs->angles);
1023         cs->flags = flags;
1024         cs->effects = effects;
1025         cs->colormap = (unsigned)ent->fields.server->colormap;
1026         cs->modelindex = modelindex;
1027         cs->skin = (unsigned)ent->fields.server->skin;
1028         cs->frame = (unsigned)ent->fields.server->frame;
1029         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1030         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1031         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1032         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1033         cs->customizeentityforclient = customizeentityforclient;
1034         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1035         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1036         cs->glowsize = glowsize;
1037
1038         // don't need to init cs->colormod because the defaultstate did that for us
1039         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1040         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1041         if (val->vector[0] || val->vector[1] || val->vector[2])
1042         {
1043                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1044                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1045                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1046         }
1047
1048         cs->modelindex = modelindex;
1049
1050         cs->alpha = 255;
1051         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1052         if (f)
1053         {
1054                 i = (int)f;
1055                 cs->alpha = (unsigned char)bound(0, i, 255);
1056         }
1057         // halflife
1058         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1059         if (f)
1060         {
1061                 i = (int)f;
1062                 cs->alpha = (unsigned char)bound(0, i, 255);
1063         }
1064
1065         cs->scale = 16;
1066         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1067         if (f)
1068         {
1069                 i = (int)f;
1070                 cs->scale = (unsigned char)bound(0, i, 255);
1071         }
1072
1073         cs->glowcolor = 254;
1074         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1075         if (f)
1076                 cs->glowcolor = (int)f;
1077
1078         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1079                 cs->effects |= EF_FULLBRIGHT;
1080
1081         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1082         if (val && val->_float)
1083                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1084
1085         if (ent->fields.server->movetype == MOVETYPE_STEP)
1086                 cs->flags |= RENDER_STEP;
1087         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)
1088                 cs->flags |= RENDER_LOWPRECISION;
1089         if (ent->fields.server->colormap >= 1024)
1090                 cs->flags |= RENDER_COLORMAPPED;
1091         if (cs->viewmodelforclient)
1092                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1093
1094         cs->light[0] = light[0];
1095         cs->light[1] = light[1];
1096         cs->light[2] = light[2];
1097         cs->light[3] = light[3];
1098         cs->lightstyle = lightstyle;
1099         cs->lightpflags = lightpflags;
1100
1101         cs->specialvisibilityradius = specialvisibilityradius;
1102
1103         // calculate the visible box of this entity (don't use the physics box
1104         // as that is often smaller than a model, and would not count
1105         // specialvisibilityradius)
1106         if ((model = sv.models[modelindex]))
1107         {
1108                 float scale = cs->scale * (1.0f / 16.0f);
1109                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1110                 {
1111                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1112                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1113                 }
1114                 else if (cs->angles[1])
1115                 {
1116                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1117                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1118                 }
1119                 else
1120                 {
1121                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1122                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1123                 }
1124         }
1125         else
1126         {
1127                 // if there is no model (or it could not be loaded), use the physics box
1128                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1129                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1130         }
1131         if (specialvisibilityradius)
1132         {
1133                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1134                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1135                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1136                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1137                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1138                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1139         }
1140
1141         // calculate center of bbox for network prioritization purposes
1142         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1143
1144         // if culling box has moved, update pvs cluster links
1145         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1146         {
1147                 VectorCopy(cullmins, ent->priv.server->cullmins);
1148                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1149                 // a value of -1 for pvs_numclusters indicates that the links are not
1150                 // cached, and should be re-tested each time, this is the case if the
1151                 // culling box touches too many pvs clusters to store, or if the world
1152                 // model does not support FindBoxClusters
1153                 ent->priv.server->pvs_numclusters = -1;
1154                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1155                 {
1156                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1157                         if (i <= MAX_ENTITYCLUSTERS)
1158                                 ent->priv.server->pvs_numclusters = i;
1159                 }
1160         }
1161
1162         return true;
1163 }
1164
1165 void SV_PrepareEntitiesForSending(void)
1166 {
1167         int e;
1168         prvm_edict_t *ent;
1169         // send all entities that touch the pvs
1170         sv.numsendentities = 0;
1171         sv.sendentitiesindex[0] = NULL;
1172         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1173         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1174         {
1175                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1176                 {
1177                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1178                         sv.numsendentities++;
1179                 }
1180         }
1181 }
1182
1183 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1184 {
1185         int isbmodel;
1186         model_t *model;
1187         prvm_edict_t *ed;
1188         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1189                 return;
1190         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1191         sv.writeentitiestoclient_stats_totalentities++;
1192
1193         if (s->customizeentityforclient)
1194         {
1195                 prog->globals.server->self = s->number;
1196                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1197                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1198                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1199                         return;
1200         }
1201
1202         // never reject player
1203         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1204         {
1205                 // check various rejection conditions
1206                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1207                         return;
1208                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1209                         return;
1210                 if (s->effects & EF_NODRAW)
1211                         return;
1212                 // LordHavoc: only send entities with a model or important effects
1213                 if (!s->modelindex && s->specialvisibilityradius == 0)
1214                         return;
1215
1216                 isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
1217                 // viewmodels don't have visibility checking
1218                 if (s->viewmodelforclient)
1219                 {
1220                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1221                                 return;
1222                 }
1223                 else if (s->tagentity)
1224                 {
1225                         // tag attached entities simply check their parent
1226                         if (!sv.sendentitiesindex[s->tagentity])
1227                                 return;
1228                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1229                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1230                                 return;
1231                 }
1232                 // always send world submodels in newer protocols because they don't
1233                 // generate much traffic (in old protocols they hog bandwidth)
1234                 // but only if sv_cullentities_nevercullbmodels is off
1235                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1236                 {
1237                         // entity has survived every check so far, check if visible
1238                         ed = PRVM_EDICT_NUM(s->number);
1239
1240                         // if not touching a visible leaf
1241                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1242                         {
1243                                 if (ed->priv.server->pvs_numclusters < 0)
1244                                 {
1245                                         // entity too big for clusters list
1246                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1247                                         {
1248                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1249                                                 return;
1250                                         }
1251                                 }
1252                                 else
1253                                 {
1254                                         int i;
1255                                         // check cached clusters list
1256                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1257                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1258                                                         break;
1259                                         if (i == ed->priv.server->pvs_numclusters)
1260                                         {
1261                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1262                                                 return;
1263                                         }
1264                                 }
1265                         }
1266
1267                         // or not seen by random tracelines
1268                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1269                         {
1270                                 int samples = s->specialvisibilityradius ? sv_cullentities_trace_samples_extra.integer : sv_cullentities_trace_samples.integer;
1271                                 float enlarge = sv_cullentities_trace_enlarge.value;
1272
1273                                 qboolean visible = TRUE;
1274
1275                                 do
1276                                 {
1277                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1278                                                 break; // directly visible from the server's view
1279
1280                                         if(sv_cullentities_trace_prediction.integer)
1281                                         {
1282                                                 vec3_t predeye;
1283
1284                                                 // get player velocity
1285                                                 float predtime = bound(0, host_client->ping, 0.2); // / 2
1286                                                         // sorry, no wallhacking by high ping please, and at 200ms
1287                                                         // ping a FPS is annoying to play anyway and a player is
1288                                                         // likely to have changed his direction
1289                                                 VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1290                                                 if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1291                                                 {
1292                                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1293                                                                 break; // directly visible from the predicted view
1294                                                 }
1295                                                 else
1296                                                 {
1297                                                         //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1298                                                 }
1299                                         }
1300
1301                                         // when we get here, we can't see the entity
1302                                         visible = false;
1303                                 }
1304                                 while(0);
1305
1306                                 if(visible)
1307                                         svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] = realtime + sv_cullentities_trace_delay.value;
1308                                 else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1309                                 {
1310                                         sv.writeentitiestoclient_stats_culled_trace++;
1311                                         return;
1312                                 }
1313                         }
1314                 }
1315         }
1316
1317         // this just marks it for sending
1318         // FIXME: it would be more efficient to send here, but the entity
1319         // compressor isn't that flexible
1320         sv.writeentitiestoclient_stats_visibleentities++;
1321         sv.sententities[s->number] = sv.sententitiesmark;
1322 }
1323
1324 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg)
1325 {
1326         int i, numsendstates;
1327         entity_state_t *s;
1328         prvm_edict_t *camera;
1329
1330         // if there isn't enough space to accomplish anything, skip it
1331         if (msg->cursize + 25 > msg->maxsize)
1332                 return;
1333
1334         sv.writeentitiestoclient_msg = msg;
1335         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1336
1337         sv.writeentitiestoclient_stats_culled_pvs = 0;
1338         sv.writeentitiestoclient_stats_culled_trace = 0;
1339         sv.writeentitiestoclient_stats_visibleentities = 0;
1340         sv.writeentitiestoclient_stats_totalentities = 0;
1341
1342 // find the client's PVS
1343         // the real place being tested from
1344         camera = PRVM_EDICT_NUM( client->clientcamera );
1345         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1346         sv.writeentitiestoclient_pvsbytes = 0;
1347         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1348                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
1349
1350         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1351
1352         sv.sententitiesmark++;
1353
1354         for (i = 0;i < sv.numsendentities;i++)
1355                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1356
1357         numsendstates = 0;
1358         for (i = 0;i < sv.numsendentities;i++)
1359         {
1360                 if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
1361                 {
1362                         s = &sv.writeentitiestoclient_sendstates[numsendstates++];
1363                         *s = sv.sendentities[i];
1364                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1365                                 s->flags |= RENDER_EXTERIORMODEL;
1366                 }
1367         }
1368
1369         if (sv_cullentities_stats.integer)
1370                 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);
1371
1372         EntityFrameCSQC_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
1373
1374         if (client->entitydatabase5)
1375                 EntityFrame5_WriteFrame(msg, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence);
1376         else if (client->entitydatabase4)
1377         {
1378                 EntityFrame4_WriteFrame(msg, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1379                 Protocol_WriteStatsReliable();
1380         }
1381         else if (client->entitydatabase)
1382         {
1383                 EntityFrame_WriteFrame(msg, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1384                 Protocol_WriteStatsReliable();
1385         }
1386         else
1387         {
1388                 EntityFrameQuake_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
1389                 Protocol_WriteStatsReliable();
1390         }
1391 }
1392
1393 /*
1394 =============
1395 SV_CleanupEnts
1396
1397 =============
1398 */
1399 static void SV_CleanupEnts (void)
1400 {
1401         int             e;
1402         prvm_edict_t    *ent;
1403
1404         ent = PRVM_NEXT_EDICT(prog->edicts);
1405         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1406                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1407 }
1408
1409 /*
1410 ==================
1411 SV_WriteClientdataToMessage
1412
1413 ==================
1414 */
1415 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1416 {
1417         int             bits;
1418         int             i;
1419         prvm_edict_t    *other;
1420         int             items;
1421         prvm_eval_t     *val;
1422         vec3_t  punchvector;
1423         int             viewzoom;
1424         const char *s;
1425         float   *statsf = (float *)stats;
1426
1427 //
1428 // send a damage message
1429 //
1430         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1431         {
1432                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1433                 MSG_WriteByte (msg, svc_damage);
1434                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1435                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1436                 for (i=0 ; i<3 ; i++)
1437                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1438
1439                 ent->fields.server->dmg_take = 0;
1440                 ent->fields.server->dmg_save = 0;
1441         }
1442
1443 //
1444 // send the current viewpos offset from the view entity
1445 //
1446         SV_SetIdealPitch ();            // how much to look up / down ideally
1447
1448 // a fixangle might get lost in a dropped packet.  Oh well.
1449         if(ent->fields.server->fixangle)
1450         {
1451                 // angle fixing was requested by global thinking code...
1452                 // so store the current angles for later use
1453                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1454                 host_client->fixangle_angles_set = TRUE;
1455
1456                 // and clear fixangle for the next frame
1457                 ent->fields.server->fixangle = 0;
1458         }
1459
1460         if (host_client->fixangle_angles_set)
1461         {
1462                 MSG_WriteByte (msg, svc_setangle);
1463                 for (i=0 ; i < 3 ; i++)
1464                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1465                 host_client->fixangle_angles_set = FALSE;
1466         }
1467
1468         // stuff the sigil bits into the high bits of items for sbar, or else
1469         // mix in items2
1470         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1471         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1472                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1473         else
1474                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1475
1476         VectorClear(punchvector);
1477         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1478                 VectorCopy(val->vector, punchvector);
1479
1480         // cache weapon model name and index in client struct to save time
1481         // (this search can be almost 1% of cpu time!)
1482         s = PRVM_GetString(ent->fields.server->weaponmodel);
1483         if (strcmp(s, client->weaponmodel))
1484         {
1485                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1486                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1487         }
1488
1489         viewzoom = 255;
1490         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1491                 viewzoom = (int)(val->_float * 255.0f);
1492         if (viewzoom == 0)
1493                 viewzoom = 255;
1494
1495         bits = 0;
1496
1497         if ((int)ent->fields.server->flags & FL_ONGROUND)
1498                 bits |= SU_ONGROUND;
1499         if (ent->fields.server->waterlevel >= 2)
1500                 bits |= SU_INWATER;
1501         if (ent->fields.server->idealpitch)
1502                 bits |= SU_IDEALPITCH;
1503
1504         for (i=0 ; i<3 ; i++)
1505         {
1506                 if (ent->fields.server->punchangle[i])
1507                         bits |= (SU_PUNCH1<<i);
1508                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
1509                         if (punchvector[i])
1510                                 bits |= (SU_PUNCHVEC1<<i);
1511                 if (ent->fields.server->velocity[i])
1512                         bits |= (SU_VELOCITY1<<i);
1513         }
1514
1515         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1516         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1517         stats[STAT_ITEMS] = items;
1518         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1519         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1520         stats[STAT_WEAPON] = client->weaponmodelindex;
1521         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1522         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1523         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1524         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1525         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1526         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1527         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1528         stats[STAT_VIEWZOOM] = viewzoom;
1529         stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
1530         stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
1531         // the QC bumps these itself by sending svc_'s, so we have to keep them
1532         // zero or they'll be corrected by the engine
1533         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1534         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1535
1536         // movement settings for prediction
1537         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1538         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1539         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1540         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1541         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1542         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1543         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1544         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1545         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1546         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1547         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1548         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1549         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1550         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1551         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1552         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1553         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1554         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1555         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1556         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1557         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1558         statsf[STAT_TIMELIMIT] = timelimit.value;
1559
1560         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1561         {
1562                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1563                 bits |= SU_ITEMS;
1564                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1565                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1566                 bits |= SU_WEAPON;
1567                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1568                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1569                         if (viewzoom != 255)
1570                                 bits |= SU_VIEWZOOM;
1571         }
1572
1573         if (bits >= 65536)
1574                 bits |= SU_EXTEND1;
1575         if (bits >= 16777216)
1576                 bits |= SU_EXTEND2;
1577
1578         // send the data
1579         MSG_WriteByte (msg, svc_clientdata);
1580         MSG_WriteShort (msg, bits);
1581         if (bits & SU_EXTEND1)
1582                 MSG_WriteByte(msg, bits >> 16);
1583         if (bits & SU_EXTEND2)
1584                 MSG_WriteByte(msg, bits >> 24);
1585
1586         if (bits & SU_VIEWHEIGHT)
1587                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1588
1589         if (bits & SU_IDEALPITCH)
1590                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1591
1592         for (i=0 ; i<3 ; i++)
1593         {
1594                 if (bits & (SU_PUNCH1<<i))
1595                 {
1596                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1597                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1598                         else
1599                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1600                 }
1601                 if (bits & (SU_PUNCHVEC1<<i))
1602                 {
1603                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1604                                 MSG_WriteCoord16i(msg, punchvector[i]);
1605                         else
1606                                 MSG_WriteCoord32f(msg, punchvector[i]);
1607                 }
1608                 if (bits & (SU_VELOCITY1<<i))
1609                 {
1610                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1611                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1612                         else
1613                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1614                 }
1615         }
1616
1617         if (bits & SU_ITEMS)
1618                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1619
1620         if (sv.protocol == PROTOCOL_DARKPLACES5)
1621         {
1622                 if (bits & SU_WEAPONFRAME)
1623                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1624                 if (bits & SU_ARMOR)
1625                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1626                 if (bits & SU_WEAPON)
1627                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1628                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1629                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1630                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1631                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1632                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1633                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1634                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1635                 if (bits & SU_VIEWZOOM)
1636                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1637         }
1638         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1639         {
1640                 if (bits & SU_WEAPONFRAME)
1641                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1642                 if (bits & SU_ARMOR)
1643                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1644                 if (bits & SU_WEAPON)
1645                 {
1646                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1647                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
1648                         else
1649                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
1650                 }
1651                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1652                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1653                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1654                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1655                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1656                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1657                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1658                 {
1659                         for (i = 0;i < 32;i++)
1660                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1661                                         break;
1662                         MSG_WriteByte (msg, i);
1663                 }
1664                 else
1665                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1666                 if (bits & SU_VIEWZOOM)
1667                 {
1668                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1669                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1670                         else
1671                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1672                 }
1673         }
1674 }
1675
1676 void SV_FlushBroadcastMessages(void)
1677 {
1678         int i;
1679         client_t *client;
1680         if (sv.datagram.cursize <= 0)
1681                 return;
1682         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1683         {
1684                 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])))
1685                         continue;
1686                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1687                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1688         }
1689         SZ_Clear(&sv.datagram);
1690 }
1691
1692 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg)
1693 {
1694         // scan the splitpoints to find out how many we can fit in
1695         int numsegments, j, split;
1696         if (!client->unreliablemsg_splitpoints)
1697                 return;
1698         // always accept the first one if it's within 1400 bytes, this ensures
1699         // that very big datagrams which are over the rate limit still get
1700         // through, just to keep it working
1701         if (msg->cursize + client->unreliablemsg_splitpoint[0] > msg->maxsize && msg->maxsize < 1400)
1702         {
1703                 numsegments = 1;
1704                 msg->maxsize = 1400;
1705         }
1706         else
1707                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1708                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > msg->maxsize)
1709                                 break;
1710         if (numsegments > 0)
1711         {
1712                 // some will fit, so add the ones that will fit
1713                 split = client->unreliablemsg_splitpoint[numsegments-1];
1714                 // note this discards ones that were accepted by the segments scan but
1715                 // can not fit, such as a really huge first one that will never ever
1716                 // fit in a packet...
1717                 if (msg->cursize + split <= msg->maxsize)
1718                         SZ_Write(msg, client->unreliablemsg.data, split);
1719                 // remove the part we sent, keeping any remaining data
1720                 client->unreliablemsg.cursize -= split;
1721                 if (client->unreliablemsg.cursize > 0)
1722                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1723                 // adjust remaining splitpoints
1724                 client->unreliablemsg_splitpoints -= numsegments;
1725                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1726                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1727         }
1728 }
1729
1730 /*
1731 =======================
1732 SV_SendClientDatagram
1733 =======================
1734 */
1735 static void SV_SendClientDatagram (client_t *client)
1736 {
1737         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1738         sizebuf_t msg;
1739         int stats[MAX_CL_STATS];
1740         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1741
1742         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1743         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1744         if (sv_maxrate.integer != maxrate)
1745                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1746         // clientrate determines the 'cleartime' of a packet
1747         // (how long to wait before sending another, based on this packet's size)
1748         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1749
1750         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1751         {
1752                 // for good singleplayer, send huge packets
1753                 maxsize = sizeof(sv_sendclientdatagram_buf);
1754                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1755                 // never limit frequency in singleplayer
1756                 clientrate = 1000000000;
1757         }
1758         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_QUAKEWORLD)
1759         {
1760                 // no packet size limit support on Quake protocols because it just
1761                 // causes missing entities/effects
1762                 // packets are simply sent less often to obey the rate limit
1763                 maxsize = 1024;
1764                 maxsize2 = 1024;
1765         }
1766         else if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1767         {
1768                 // no packet size limit support on DP1-4 protocols because they kick
1769                 // the client off if they overflow, and miss effects
1770                 // packets are simply sent less often to obey the rate limit
1771                 maxsize = sizeof(sv_sendclientdatagram_buf);
1772                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1773         }
1774         else
1775         {
1776                 // DP5 and later protocols support packet size limiting which is a
1777                 // better method than limiting packet frequency as QW does
1778                 //
1779                 // at very low rates (or very small sys_ticrate) the packet size is
1780                 // not reduced below 128, but packets may be sent less often
1781                 maxsize = (int)(clientrate * sys_ticrate.value);
1782                 maxsize = bound(128, maxsize, 1400);
1783                 maxsize2 = 1400;
1784                 // csqc entities can easily exceed 128 bytes, so disable throttling in
1785                 // mods that use csqc (they are likely to use less bandwidth anyway)
1786                 if (sv.csqc_progsize > 0)
1787                         maxsize = maxsize2;
1788         }
1789
1790         // obey rate limit by limiting packet frequency if the packet size
1791         // limiting fails
1792         // (usually this is caused by reliable messages)
1793         if (!NetConn_CanSend(client->netconnection))
1794                 return;
1795
1796         // while downloading, limit entity updates to half the packet
1797         // (any leftover space will be used for downloading)
1798         if (host_client->download_file)
1799                 maxsize /= 2;
1800
1801         msg.data = sv_sendclientdatagram_buf;
1802         msg.maxsize = maxsize;
1803         msg.cursize = 0;
1804         msg.allowoverflow = false;
1805
1806         if (host_client->spawned)
1807         {
1808                 // the player is in the game
1809                 MSG_WriteByte (&msg, svc_time);
1810                 MSG_WriteFloat (&msg, sv.time);
1811
1812                 // add the client specific data to the datagram
1813                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1814                 // now update the stats[] array using any registered custom fields
1815                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1816                 // set host_client->statsdeltabits
1817                 Protocol_UpdateClientStats (stats);
1818
1819                 // add as many queued unreliable messages (effects) as we can fit
1820                 // limit effects to half of the remaining space
1821                 msg.maxsize -= (msg.maxsize - msg.cursize) / 2;
1822                 if (client->unreliablemsg.cursize)
1823                         SV_WriteUnreliableMessages (client, &msg);
1824
1825                 msg.maxsize = maxsize;
1826
1827                 // now write as many entities as we can fit, and also sends stats
1828                 SV_WriteEntitiesToClient (client, client->edict, &msg);
1829         }
1830         else if (realtime > client->keepalivetime)
1831         {
1832                 // the player isn't totally in the game yet
1833                 // send small keepalive messages if too much time has passed
1834                 // (may also be sending downloads)
1835                 msg.maxsize = maxsize2;
1836                 client->keepalivetime = realtime + 5;
1837                 MSG_WriteChar (&msg, svc_nop);
1838         }
1839
1840         msg.maxsize = maxsize2;
1841
1842         // if a download is active, see if there is room to fit some download data
1843         // in this packet
1844         downloadsize = maxsize * 2 - msg.cursize - 7;
1845         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1846         {
1847                 fs_offset_t downloadstart;
1848                 unsigned char data[1400];
1849                 downloadstart = FS_Tell(host_client->download_file);
1850                 downloadsize = min(downloadsize, (int)sizeof(data));
1851                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1852                 // note this sends empty messages if at the end of the file, which is
1853                 // necessary to keep the packet loss logic working
1854                 // (the last blocks may be lost and need to be re-sent, and that will
1855                 //  only occur if the client acks the empty end messages, revealing
1856                 //  a gap in the download progress, causing the last blocks to be
1857                 //  sent again)
1858                 MSG_WriteChar (&msg, svc_downloaddata);
1859                 MSG_WriteLong (&msg, downloadstart);
1860                 MSG_WriteShort (&msg, downloadsize);
1861                 if (downloadsize > 0)
1862                         SZ_Write (&msg, data, downloadsize);
1863         }
1864
1865         // reliable only if none is in progress
1866         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
1867                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
1868         // unreliable
1869         SV_WriteDemoMessage(client, &msg, false);
1870
1871 // send the datagram
1872         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1873         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1874                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1875 }
1876
1877 /*
1878 =======================
1879 SV_UpdateToReliableMessages
1880 =======================
1881 */
1882 static void SV_UpdateToReliableMessages (void)
1883 {
1884         int i, j;
1885         client_t *client;
1886         prvm_eval_t *val;
1887         const char *name;
1888         const char *model;
1889         const char *skin;
1890
1891 // check for changes to be sent over the reliable streams
1892         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1893         {
1894                 // update the host_client fields we care about according to the entity fields
1895                 host_client->edict = PRVM_EDICT_NUM(i+1);
1896
1897                 // DP_SV_CLIENTNAME
1898                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1899                 if (name == NULL)
1900                         name = "";
1901                 // always point the string back at host_client->name to keep it safe
1902                 strlcpy (host_client->name, name, sizeof (host_client->name));
1903                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1904                 if (strcmp(host_client->old_name, host_client->name))
1905                 {
1906                         if (host_client->spawned)
1907                                 SV_BroadcastPrintf("%s changed name to %s\n", host_client->old_name, host_client->name);
1908                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
1909                         // send notification to all clients
1910                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
1911                         MSG_WriteByte (&sv.reliable_datagram, i);
1912                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
1913                         SV_WriteNetnameIntoDemo(host_client);
1914                 }
1915
1916                 // DP_SV_CLIENTCOLORS
1917                 // this is always found (since it's added by the progs loader)
1918                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
1919                         host_client->colors = (int)val->_float;
1920                 if (host_client->old_colors != host_client->colors)
1921                 {
1922                         host_client->old_colors = host_client->colors;
1923                         // send notification to all clients
1924                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
1925                         MSG_WriteByte (&sv.reliable_datagram, i);
1926                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
1927                 }
1928
1929                 // NEXUIZ_PLAYERMODEL
1930                 if( prog->fieldoffsets.playermodel >= 0 ) {
1931                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
1932                         if (model == NULL)
1933                                 model = "";
1934                         // always point the string back at host_client->name to keep it safe
1935                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
1936                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
1937                 }
1938
1939                 // NEXUIZ_PLAYERSKIN
1940                 if( prog->fieldoffsets.playerskin >= 0 ) {
1941                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
1942                         if (skin == NULL)
1943                                 skin = "";
1944                         // always point the string back at host_client->name to keep it safe
1945                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
1946                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
1947                 }
1948
1949                 // TODO: add an extension name for this [1/17/2008 Black]
1950                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
1951                         int oldclientcamera = host_client->clientcamera;
1952                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
1953                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
1954                         } else {
1955                                 host_client->clientcamera = val->edict;
1956                         }
1957
1958                         if( oldclientcamera != host_client->clientcamera ) {
1959                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
1960                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
1961                         }
1962                 }
1963
1964                 // frags
1965                 host_client->frags = (int)host_client->edict->fields.server->frags;
1966                 if(gamemode == GAME_NEXUIZ)
1967                         if(!host_client->spawned && host_client->netconnection)
1968                                 host_client->frags = -666;
1969                 if (host_client->old_frags != host_client->frags)
1970                 {
1971                         host_client->old_frags = host_client->frags;
1972                         // send notification to all clients
1973                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
1974                         MSG_WriteByte (&sv.reliable_datagram, i);
1975                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
1976                 }
1977         }
1978
1979         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
1980                 if (client->netconnection)
1981                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1982
1983         SZ_Clear (&sv.reliable_datagram);
1984 }
1985
1986
1987 /*
1988 =======================
1989 SV_SendClientMessages
1990 =======================
1991 */
1992 void SV_SendClientMessages (void)
1993 {
1994         int i, prepared = false;
1995
1996         if (sv.protocol == PROTOCOL_QUAKEWORLD)
1997                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
1998
1999         SV_FlushBroadcastMessages();
2000
2001 // update frags, names, etc
2002         SV_UpdateToReliableMessages();
2003
2004 // build individual updates
2005         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2006         {
2007                 if (!host_client->active)
2008                         continue;
2009                 if (!host_client->netconnection)
2010                         continue;
2011
2012                 if (host_client->netconnection->message.overflowed)
2013                 {
2014                         SV_DropClient (true);   // if the message couldn't send, kick off
2015                         continue;
2016                 }
2017
2018                 if (!prepared)
2019                 {
2020                         prepared = true;
2021                         // only prepare entities once per frame
2022                         SV_PrepareEntitiesForSending();
2023                 }
2024                 SV_SendClientDatagram (host_client);
2025         }
2026
2027 // clear muzzle flashes
2028         SV_CleanupEnts();
2029 }
2030
2031 static void SV_StartDownload_f(void)
2032 {
2033         if (host_client->download_file)
2034                 host_client->download_started = true;
2035 }
2036
2037 static void SV_Download_f(void)
2038 {
2039         const char *whichpack, *whichpack2, *extension;
2040
2041         if (Cmd_Argc() != 2)
2042         {
2043                 SV_ClientPrintf("usage: download <filename>\n");
2044                 return;
2045         }
2046
2047         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2048         {
2049                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2050                 return;
2051         }
2052
2053         if (host_client->download_file)
2054         {
2055                 // at this point we'll assume the previous download should be aborted
2056                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2057                 Host_ClientCommands("\nstopdownload\n");
2058
2059                 // close the file and reset variables
2060                 FS_Close(host_client->download_file);
2061                 host_client->download_file = NULL;
2062                 host_client->download_name[0] = 0;
2063                 host_client->download_expectedposition = 0;
2064                 host_client->download_started = false;
2065         }
2066
2067         if (!sv_allowdownloads.integer)
2068         {
2069                 SV_ClientPrintf("Downloads are disabled on this server\n");
2070                 Host_ClientCommands("\nstopdownload\n");
2071                 return;
2072         }
2073
2074         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2075         extension = FS_FileExtension(host_client->download_name);
2076
2077         // host_client is asking to download a specified file
2078         if (developer.integer >= 100)
2079                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2080
2081         if (!FS_FileExists(host_client->download_name))
2082         {
2083                 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);
2084                 Host_ClientCommands("\nstopdownload\n");
2085                 return;
2086         }
2087
2088         // check if the user is trying to download part of registered Quake(r)
2089         whichpack = FS_WhichPack(host_client->download_name);
2090         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2091         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2092         {
2093                 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);
2094                 Host_ClientCommands("\nstopdownload\n");
2095                 return;
2096         }
2097
2098         // check if the server has forbidden archive downloads entirely
2099         if (!sv_allowdownloads_inarchive.integer)
2100         {
2101                 whichpack = FS_WhichPack(host_client->download_name);
2102                 if (whichpack)
2103                 {
2104                         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);
2105                         Host_ClientCommands("\nstopdownload\n");
2106                         return;
2107                 }
2108         }
2109
2110         if (!sv_allowdownloads_config.integer)
2111         {
2112                 if (!strcasecmp(extension, "cfg"))
2113                 {
2114                         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);
2115                         Host_ClientCommands("\nstopdownload\n");
2116                         return;
2117                 }
2118         }
2119
2120         if (!sv_allowdownloads_dlcache.integer)
2121         {
2122                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2123                 {
2124                         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);
2125                         Host_ClientCommands("\nstopdownload\n");
2126                         return;
2127                 }
2128         }
2129
2130         if (!sv_allowdownloads_archive.integer)
2131         {
2132                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2133                 {
2134                         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);
2135                         Host_ClientCommands("\nstopdownload\n");
2136                         return;
2137                 }
2138         }
2139
2140         host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
2141         if (!host_client->download_file)
2142         {
2143                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2144                 Host_ClientCommands("\nstopdownload\n");
2145                 return;
2146         }
2147
2148         if (FS_FileSize(host_client->download_file) > 1<<30)
2149         {
2150                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2151                 Host_ClientCommands("\nstopdownload\n");
2152                 FS_Close(host_client->download_file);
2153                 host_client->download_file = NULL;
2154                 return;
2155         }
2156
2157         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2158
2159         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2160
2161         host_client->download_expectedposition = 0;
2162         host_client->download_started = false;
2163         host_client->sendsignon = true; // make sure this message is sent
2164
2165         // the rest of the download process is handled in SV_SendClientDatagram
2166         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2167         //
2168         // no svc_downloaddata messages will be sent until sv_startdownload is
2169         // sent by the client
2170 }
2171
2172 /*
2173 ==============================================================================
2174
2175 SERVER SPAWNING
2176
2177 ==============================================================================
2178 */
2179
2180 /*
2181 ================
2182 SV_ModelIndex
2183
2184 ================
2185 */
2186 int SV_ModelIndex(const char *s, int precachemode)
2187 {
2188         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_MODELS);
2189         char filename[MAX_QPATH];
2190         if (!s || !*s)
2191                 return 0;
2192         // testing
2193         //if (precachemode == 2)
2194         //      return 0;
2195         strlcpy(filename, s, sizeof(filename));
2196         for (i = 2;i < limit;i++)
2197         {
2198                 if (!sv.model_precache[i][0])
2199                 {
2200                         if (precachemode)
2201                         {
2202                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2203                                 {
2204                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2205                                         return 0;
2206                                 }
2207                                 if (precachemode == 1)
2208                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2209                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2210                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2211                                 if (sv.state != ss_loading)
2212                                 {
2213                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2214                                         MSG_WriteShort(&sv.reliable_datagram, i);
2215                                         MSG_WriteString(&sv.reliable_datagram, filename);
2216                                 }
2217                                 return i;
2218                         }
2219                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2220                         return 0;
2221                 }
2222                 if (!strcmp(sv.model_precache[i], filename))
2223                         return i;
2224         }
2225         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2226         return 0;
2227 }
2228
2229 /*
2230 ================
2231 SV_SoundIndex
2232
2233 ================
2234 */
2235 int SV_SoundIndex(const char *s, int precachemode)
2236 {
2237         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_SOUNDS);
2238         char filename[MAX_QPATH];
2239         if (!s || !*s)
2240                 return 0;
2241         // testing
2242         //if (precachemode == 2)
2243         //      return 0;
2244         strlcpy(filename, s, sizeof(filename));
2245         for (i = 1;i < limit;i++)
2246         {
2247                 if (!sv.sound_precache[i][0])
2248                 {
2249                         if (precachemode)
2250                         {
2251                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2252                                 {
2253                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2254                                         return 0;
2255                                 }
2256                                 if (precachemode == 1)
2257                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2258                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2259                                 if (sv.state != ss_loading)
2260                                 {
2261                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2262                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2263                                         MSG_WriteString(&sv.reliable_datagram, filename);
2264                                 }
2265                                 return i;
2266                         }
2267                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2268                         return 0;
2269                 }
2270                 if (!strcmp(sv.sound_precache[i], filename))
2271                         return i;
2272         }
2273         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2274         return 0;
2275 }
2276
2277 /*
2278 ================
2279 SV_ParticleEffectIndex
2280
2281 ================
2282 */
2283 int SV_ParticleEffectIndex(const char *name)
2284 {
2285         int i, argc, linenumber, effectnameindex;
2286         fs_offset_t filesize;
2287         unsigned char *filedata;
2288         const char *text, *textstart, *textend;
2289         char argv[16][1024];
2290         if (!sv.particleeffectnamesloaded)
2291         {
2292                 sv.particleeffectnamesloaded = true;
2293                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2294                 for (i = 0;i < EFFECT_TOTAL;i++)
2295                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2296                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2297                 if (filedata)
2298                 {
2299                         textstart = (const char *)filedata;
2300                         textend = (const char *)filedata + filesize;
2301                         text = textstart;
2302                         for (linenumber = 1;;linenumber++)
2303                         {
2304                                 argc = 0;
2305                                 for (;;)
2306                                 {
2307                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2308                                                 break;
2309                                         if (argc < 16)
2310                                         {
2311                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2312                                                 argc++;
2313                                         }
2314                                 }
2315                                 if (com_token[0] == 0)
2316                                         break; // if the loop exited and it's not a \n, it's EOF
2317                                 if (argc < 1)
2318                                         continue;
2319                                 if (!strcmp(argv[0], "effect"))
2320                                 {
2321                                         if (argc == 2)
2322                                         {
2323                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2324                                                 {
2325                                                         if (sv.particleeffectname[effectnameindex][0])
2326                                                         {
2327                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2328                                                                         break;
2329                                                         }
2330                                                         else
2331                                                         {
2332                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2333                                                                 break;
2334                                                         }
2335                                                 }
2336                                                 // if we run out of names, abort
2337                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2338                                                 {
2339                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2340                                                         break;
2341                                                 }
2342                                         }
2343                                 }
2344                         }
2345                         Mem_Free(filedata);
2346                 }
2347         }
2348         // search for the name
2349         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2350                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2351                         return effectnameindex;
2352         // return 0 if we couldn't find it
2353         return 0;
2354 }
2355
2356 /*
2357 ================
2358 SV_CreateBaseline
2359
2360 ================
2361 */
2362 static void SV_CreateBaseline (void)
2363 {
2364         int i, entnum, large;
2365         prvm_edict_t *svent;
2366
2367         // LordHavoc: clear *all* states (note just active ones)
2368         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2369         {
2370                 // get the current server version
2371                 svent = PRVM_EDICT_NUM(entnum);
2372
2373                 // LordHavoc: always clear state values, whether the entity is in use or not
2374                 svent->priv.server->baseline = defaultstate;
2375
2376                 if (svent->priv.server->free)
2377                         continue;
2378                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2379                         continue;
2380
2381                 // create entity baseline
2382                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2383                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2384                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2385                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2386                 if (entnum > 0 && entnum <= svs.maxclients)
2387                 {
2388                         svent->priv.server->baseline.colormap = entnum;
2389                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2390                 }
2391                 else
2392                 {
2393                         svent->priv.server->baseline.colormap = 0;
2394                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2395                 }
2396
2397                 large = false;
2398                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2399                 {
2400                         large = true;
2401                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2402                                 large = false;
2403                 }
2404
2405                 // add to the message
2406                 if (large)
2407                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2408                 else
2409                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2410                 MSG_WriteShort (&sv.signon, entnum);
2411
2412                 if (large)
2413                 {
2414                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2415                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2416                 }
2417                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2418                 {
2419                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2420                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2421                 }
2422                 else
2423                 {
2424                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2425                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2426                 }
2427                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2428                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2429                 for (i=0 ; i<3 ; i++)
2430                 {
2431                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2432                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2433                 }
2434         }
2435 }
2436
2437
2438 /*
2439 ================
2440 SV_SaveSpawnparms
2441
2442 Grabs the current state of each client for saving across the
2443 transition to another level
2444 ================
2445 */
2446 void SV_SaveSpawnparms (void)
2447 {
2448         int             i, j;
2449
2450         svs.serverflags = (int)prog->globals.server->serverflags;
2451
2452         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2453         {
2454                 if (!host_client->active)
2455                         continue;
2456
2457         // call the progs to get default spawn parms for the new client
2458                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2459                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2460                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2461                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2462         }
2463 }
2464
2465 /*
2466 ================
2467 SV_SpawnServer
2468
2469 This is called at the start of each level
2470 ================
2471 */
2472
2473 void SV_SpawnServer (const char *server)
2474 {
2475         prvm_edict_t *ent;
2476         int i;
2477         char *entities;
2478         model_t *worldmodel;
2479         char modelname[sizeof(sv.modelname)];
2480
2481         Con_DPrintf("SpawnServer: %s\n", server);
2482
2483         if (cls.state != ca_dedicated)
2484         {
2485                 SCR_BeginLoadingPlaque();
2486                 S_StopAllSounds();
2487         }
2488
2489         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2490         worldmodel = Mod_ForName(modelname, false, true, true);
2491         if (!worldmodel || !worldmodel->TraceBox)
2492         {
2493                 Con_Printf("Couldn't load map %s\n", modelname);
2494                 return;
2495         }
2496
2497         // let's not have any servers with no name
2498         if (hostname.string[0] == 0)
2499                 Cvar_Set ("hostname", "UNNAMED");
2500         scr_centertime_off = 0;
2501
2502         svs.changelevel_issued = false;         // now safe to issue another
2503
2504         // make the map a required file for clients
2505         Curl_ClearRequirements();
2506         Curl_RequireFile(modelname);
2507
2508 //
2509 // tell all connected clients that we are going to a new level
2510 //
2511         if (sv.active)
2512         {
2513                 client_t *client;
2514                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2515                 {
2516                         if (client->netconnection)
2517                         {
2518                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2519                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2520                         }
2521                 }
2522         }
2523         else
2524         {
2525                 // open server port
2526                 NetConn_OpenServerPorts(true);
2527         }
2528
2529 //
2530 // make cvars consistant
2531 //
2532         if (coop.integer)
2533                 Cvar_SetValue ("deathmatch", 0);
2534         // LordHavoc: it can be useful to have skills outside the range 0-3...
2535         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2536         //Cvar_SetValue ("skill", (float)current_skill);
2537         current_skill = (int)(skill.value + 0.5);
2538
2539 //
2540 // set up the new server
2541 //
2542         memset (&sv, 0, sizeof(sv));
2543         // if running a local client, make sure it doesn't try to access the last
2544         // level's data which is no longer valiud
2545         cls.signon = 0;
2546
2547         if(*sv_random_seed.string)
2548         {
2549                 srand(sv_random_seed.integer);
2550                 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);
2551         }
2552
2553         SV_VM_Setup();
2554
2555         sv.active = true;
2556
2557         strlcpy (sv.name, server, sizeof (sv.name));
2558
2559         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2560         if (sv.protocol == PROTOCOL_UNKNOWN)
2561         {
2562                 char buffer[1024];
2563                 Protocol_Names(buffer, sizeof(buffer));
2564                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2565                 sv.protocol = PROTOCOL_QUAKE;
2566         }
2567
2568         SV_VM_Begin();
2569
2570 // load progs to get entity field count
2571         //PR_LoadProgs ( sv_progs.string );
2572
2573         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2574         sv.datagram.cursize = 0;
2575         sv.datagram.data = sv.datagram_buf;
2576
2577         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2578         sv.reliable_datagram.cursize = 0;
2579         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2580
2581         sv.signon.maxsize = sizeof(sv.signon_buf);
2582         sv.signon.cursize = 0;
2583         sv.signon.data = sv.signon_buf;
2584
2585 // leave slots at start for clients only
2586         //prog->num_edicts = svs.maxclients+1;
2587
2588         sv.state = ss_loading;
2589         prog->allowworldwrites = true;
2590         sv.paused = false;
2591
2592         prog->globals.server->time = sv.time = 1.0;
2593
2594         Mod_ClearUsed();
2595         worldmodel->used = true;
2596
2597         strlcpy (sv.name, server, sizeof (sv.name));
2598         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2599         sv.worldmodel = worldmodel;
2600         sv.models[1] = sv.worldmodel;
2601
2602 //
2603 // clear world interaction links
2604 //
2605         VectorCopy(sv.worldmodel->normalmins, sv.world.areagrid_mins);
2606         VectorCopy(sv.worldmodel->normalmaxs, sv.world.areagrid_maxs);
2607         World_Clear(&sv.world);
2608
2609         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2610
2611         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2612         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2613         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2614         {
2615                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2616                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2617         }
2618
2619 //
2620 // load the rest of the entities
2621 //
2622         // AK possible hack since num_edicts is still 0
2623         ent = PRVM_EDICT_NUM(0);
2624         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2625         ent->priv.server->free = false;
2626         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2627         ent->fields.server->modelindex = 1;             // world model
2628         ent->fields.server->solid = SOLID_BSP;
2629         ent->fields.server->movetype = MOVETYPE_PUSH;
2630         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->mins);
2631         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->maxs);
2632         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->absmin);
2633         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->absmax);
2634
2635         if (coop.value)
2636                 prog->globals.server->coop = coop.integer;
2637         else
2638                 prog->globals.server->deathmatch = deathmatch.integer;
2639
2640         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2641
2642 // serverflags are for cross level information (sigils)
2643         prog->globals.server->serverflags = svs.serverflags;
2644
2645         // we need to reset the spawned flag on all connected clients here so that
2646         // their thinks don't run during startup (before PutClientInServer)
2647         // we also need to set up the client entities now
2648         // and we need to set the ->edict pointers to point into the progs edicts
2649         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2650         {
2651                 host_client->spawned = false;
2652                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2653                 PRVM_ED_ClearEdict(host_client->edict);
2654         }
2655
2656         // load replacement entity file if found
2657         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2658         {
2659                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2660                 PRVM_ED_LoadFromFile (entities);
2661                 Mem_Free(entities);
2662         }
2663         else
2664                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2665
2666
2667         // LordHavoc: clear world angles (to fix e3m3.bsp)
2668         VectorClear(prog->edicts->fields.server->angles);
2669
2670 // all setup is completed, any further precache statements are errors
2671         sv.state = ss_active;
2672         prog->allowworldwrites = false;
2673
2674 // run two frames to allow everything to settle
2675         for (i = 0;i < 2;i++)
2676         {
2677                 sv.frametime = 0.1;
2678                 SV_Physics ();
2679         }
2680
2681         Mod_PurgeUnused();
2682
2683 // create a baseline for more efficient communications
2684         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2685                 SV_CreateBaseline ();
2686
2687 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2688         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2689         {
2690                 if (!host_client->active)
2691                         continue;
2692                 if (host_client->netconnection)
2693                         SV_SendServerinfo(host_client);
2694                 else
2695                 {
2696                         int j;
2697                         // if client is a botclient coming from a level change, we need to
2698                         // set up client info that normally requires networking
2699
2700                         // copy spawn parms out of the client_t
2701                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2702                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2703
2704                         // call the spawn function
2705                         host_client->clientconnectcalled = true;
2706                         prog->globals.server->time = sv.time;
2707                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2708                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2709                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2710                         host_client->spawned = true;
2711                 }
2712         }
2713
2714         Con_DPrint("Server spawned.\n");
2715         NetConn_Heartbeat (2);
2716
2717         SV_VM_End();
2718 }
2719
2720 /////////////////////////////////////////////////////
2721 // SV VM stuff
2722
2723 static void SV_VM_CB_BeginIncreaseEdicts(void)
2724 {
2725         int i;
2726         prvm_edict_t *ent;
2727
2728         // links don't survive the transition, so unlink everything
2729         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2730         {
2731                 if (!ent->priv.server->free)
2732                         World_UnlinkEdict(prog->edicts + i);
2733                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
2734         }
2735         World_Clear(&sv.world);
2736 }
2737
2738 static void SV_VM_CB_EndIncreaseEdicts(void)
2739 {
2740         int i;
2741         prvm_edict_t *ent;
2742
2743         // link every entity except world
2744         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2745                 if (!ent->priv.server->free)
2746                         SV_LinkEdict(ent, false);
2747 }
2748
2749 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2750 {
2751         // LordHavoc: for consistency set these here
2752         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2753
2754         e->priv.server->move = false; // don't move on first frame
2755
2756         if (num >= 0 && num < svs.maxclients)
2757         {
2758                 prvm_eval_t *val;
2759                 // set colormap and team on newly created player entity
2760                 e->fields.server->colormap = num + 1;
2761                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
2762                 // set netname/clientcolors back to client values so that
2763                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
2764                 // reset them
2765                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
2766                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
2767                         val->_float = svs.clients[num].colors;
2768                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
2769                 if( prog->fieldoffsets.playermodel >= 0 )
2770                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
2771                 if( prog->fieldoffsets.playerskin >= 0 )
2772                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
2773                 // Assign netaddress (IP Address, etc)
2774                 if(prog->fieldoffsets.netaddress >= 0)
2775                 { // Valid Field; Process
2776                         if(svs.clients[num].netconnection != NULL)
2777                         {// Valid Address; Assign
2778                                 // Acquire Readable Address
2779                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
2780                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
2781                         }
2782                         else
2783                                 // Invalid / Bot
2784                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
2785                 }
2786         }
2787 }
2788
2789 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
2790 {
2791         World_UnlinkEdict(ed);          // unlink from world bsp
2792
2793         ed->fields.server->model = 0;
2794         ed->fields.server->takedamage = 0;
2795         ed->fields.server->modelindex = 0;
2796         ed->fields.server->colormap = 0;
2797         ed->fields.server->skin = 0;
2798         ed->fields.server->frame = 0;
2799         VectorClear(ed->fields.server->origin);
2800         VectorClear(ed->fields.server->angles);
2801         ed->fields.server->nextthink = -1;
2802         ed->fields.server->solid = 0;
2803 }
2804
2805 static void SV_VM_CB_CountEdicts(void)
2806 {
2807         int             i;
2808         prvm_edict_t    *ent;
2809         int             active, models, solid, step;
2810
2811         active = models = solid = step = 0;
2812         for (i=0 ; i<prog->num_edicts ; i++)
2813         {
2814                 ent = PRVM_EDICT_NUM(i);
2815                 if (ent->priv.server->free)
2816                         continue;
2817                 active++;
2818                 if (ent->fields.server->solid)
2819                         solid++;
2820                 if (ent->fields.server->model)
2821                         models++;
2822                 if (ent->fields.server->movetype == MOVETYPE_STEP)
2823                         step++;
2824         }
2825
2826         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
2827         Con_Printf("active    :%3i\n", active);
2828         Con_Printf("view      :%3i\n", models);
2829         Con_Printf("touch     :%3i\n", solid);
2830         Con_Printf("step      :%3i\n", step);
2831 }
2832
2833 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
2834 {
2835         // remove things from different skill levels or deathmatch
2836         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
2837         {
2838                 if (deathmatch.integer)
2839                 {
2840                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
2841                         {
2842                                 return false;
2843                         }
2844                 }
2845                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
2846                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
2847                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
2848                 {
2849                         return false;
2850                 }
2851         }
2852         return true;
2853 }
2854
2855 static void SV_VM_Setup(void)
2856 {
2857         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
2858         extern cvar_t csqc_progcrc;
2859         extern cvar_t csqc_progsize;
2860         size_t csprogsdatasize;
2861         PRVM_Begin;
2862         PRVM_InitProg( PRVM_SERVERPROG );
2863
2864         // allocate the mempools
2865         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
2866         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
2867         prog->builtins = vm_sv_builtins;
2868         prog->numbuiltins = vm_sv_numbuiltins;
2869         prog->headercrc = PROGHEADER_CRC;
2870         prog->max_edicts = 512;
2871         if (sv.protocol == PROTOCOL_QUAKE)
2872                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
2873         else if (sv.protocol == PROTOCOL_QUAKEDP)
2874                 prog->limit_edicts = 2048; // guessing
2875         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2876                 prog->limit_edicts = 2048; // guessing!
2877         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2878                 prog->limit_edicts = 4096; // guessing!
2879         else
2880                 prog->limit_edicts = MAX_EDICTS;
2881         prog->reserved_edicts = svs.maxclients;
2882         prog->edictprivate_size = sizeof(edict_engineprivate_t);
2883         prog->name = "server";
2884         prog->extensionstring = vm_sv_extensions;
2885         prog->loadintoworld = true;
2886
2887         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
2888         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
2889         prog->init_edict = SV_VM_CB_InitEdict;
2890         prog->free_edict = SV_VM_CB_FreeEdict;
2891         prog->count_edicts = SV_VM_CB_CountEdicts;
2892         prog->load_edict = SV_VM_CB_LoadEdict;
2893         prog->init_cmd = VM_SV_Cmd_Init;
2894         prog->reset_cmd = VM_SV_Cmd_Reset;
2895         prog->error_cmd = Host_Error;
2896
2897         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
2898         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
2899
2900         // some mods compiled with scrambling compilers lack certain critical
2901         // global names and field names such as "self" and "time" and "nextthink"
2902         // so we have to set these offsets manually, matching the entvars_t
2903         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
2904         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
2905         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
2906         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
2907         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
2908         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
2909         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
2910         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
2911         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
2912         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
2913         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
2914         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
2915         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
2916         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
2917         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
2918         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
2919         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
2920         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
2921         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
2922         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
2923         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
2924         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
2925         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
2926         // OP_STATE is always supported on server (due to entvars_t)
2927         prog->flag |= PRVM_OP_STATE;
2928
2929         VM_CustomStats_Clear();//[515]: csqc
2930
2931         PRVM_End;
2932
2933         // 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
2934         sv.csqc_progname[0] = 0;
2935         sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
2936         sv.csqc_progsize = csprogsdatasize;
2937         if (sv.csqc_progsize > 0)
2938         {
2939                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2940                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2941         }
2942 }
2943
2944 void SV_VM_Begin(void)
2945 {
2946         PRVM_Begin;
2947         PRVM_SetProg( PRVM_SERVERPROG );
2948
2949         prog->globals.server->time = (float) sv.time;
2950 }
2951
2952 void SV_VM_End(void)
2953 {
2954         PRVM_End;
2955 }