Add support for a clientcamera sqc field that automatically updates the view entity...
[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)"};
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         }
1785
1786         // obey rate limit by limiting packet frequency if the packet size
1787         // limiting fails
1788         // (usually this is caused by reliable messages)
1789         if (!NetConn_CanSend(client->netconnection))
1790                 return;
1791
1792         // while downloading, limit entity updates to half the packet
1793         // (any leftover space will be used for downloading)
1794         if (host_client->download_file)
1795                 maxsize /= 2;
1796
1797         msg.data = sv_sendclientdatagram_buf;
1798         msg.maxsize = maxsize;
1799         msg.cursize = 0;
1800
1801         if (host_client->spawned)
1802         {
1803                 // the player is in the game
1804                 MSG_WriteByte (&msg, svc_time);
1805                 MSG_WriteFloat (&msg, sv.time);
1806
1807                 // add the client specific data to the datagram
1808                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1809                 // now update the stats[] array using any registered custom fields
1810                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1811                 // set host_client->statsdeltabits
1812                 Protocol_UpdateClientStats (stats);
1813
1814                 // add as many queued unreliable messages (effects) as we can fit
1815                 // limit effects to half of the remaining space
1816                 msg.maxsize -= (msg.maxsize - msg.cursize) / 2;
1817                 if (client->unreliablemsg.cursize)
1818                         SV_WriteUnreliableMessages (client, &msg);
1819
1820                 msg.maxsize = maxsize;
1821
1822                 // now write as many entities as we can fit, and also sends stats
1823                 SV_WriteEntitiesToClient (client, client->edict, &msg);
1824         }
1825         else if (realtime > client->keepalivetime)
1826         {
1827                 // the player isn't totally in the game yet
1828                 // send small keepalive messages if too much time has passed
1829                 // (may also be sending downloads)
1830                 msg.maxsize = maxsize2;
1831                 client->keepalivetime = realtime + 5;
1832                 MSG_WriteChar (&msg, svc_nop);
1833         }
1834
1835         msg.maxsize = maxsize2;
1836
1837         // if a download is active, see if there is room to fit some download data
1838         // in this packet
1839         downloadsize = maxsize * 2 - msg.cursize - 7;
1840         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1841         {
1842                 fs_offset_t downloadstart;
1843                 unsigned char data[1400];
1844                 downloadstart = FS_Tell(host_client->download_file);
1845                 downloadsize = min(downloadsize, (int)sizeof(data));
1846                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1847                 // note this sends empty messages if at the end of the file, which is
1848                 // necessary to keep the packet loss logic working
1849                 // (the last blocks may be lost and need to be re-sent, and that will
1850                 //  only occur if the client acks the empty end messages, revealing
1851                 //  a gap in the download progress, causing the last blocks to be
1852                 //  sent again)
1853                 MSG_WriteChar (&msg, svc_downloaddata);
1854                 MSG_WriteLong (&msg, downloadstart);
1855                 MSG_WriteShort (&msg, downloadsize);
1856                 if (downloadsize > 0)
1857                         SZ_Write (&msg, data, downloadsize);
1858         }
1859
1860         // reliable only if none is in progress
1861         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
1862                 SV_WriteDemoMessage(client, &(client->netconnection->message));
1863         // unreliable
1864         SV_WriteDemoMessage(client, &msg);
1865
1866 // send the datagram
1867         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1868         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1869                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1870 }
1871
1872 /*
1873 =======================
1874 SV_UpdateToReliableMessages
1875 =======================
1876 */
1877 static void SV_UpdateToReliableMessages (void)
1878 {
1879         int i, j;
1880         client_t *client;
1881         prvm_eval_t *val;
1882         const char *name;
1883         const char *model;
1884         const char *skin;
1885
1886 // check for changes to be sent over the reliable streams
1887         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1888         {
1889                 // update the host_client fields we care about according to the entity fields
1890                 host_client->edict = PRVM_EDICT_NUM(i+1);
1891
1892                 // DP_SV_CLIENTNAME
1893                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1894                 if (name == NULL)
1895                         name = "";
1896                 // always point the string back at host_client->name to keep it safe
1897                 strlcpy (host_client->name, name, sizeof (host_client->name));
1898                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1899                 if (strcmp(host_client->old_name, host_client->name))
1900                 {
1901                         if (host_client->spawned)
1902                                 SV_BroadcastPrintf("%s changed name to %s\n", host_client->old_name, host_client->name);
1903                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
1904                         // send notification to all clients
1905                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
1906                         MSG_WriteByte (&sv.reliable_datagram, i);
1907                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
1908                         SV_WriteNetnameIntoDemo(host_client);
1909                 }
1910
1911                 // DP_SV_CLIENTCOLORS
1912                 // this is always found (since it's added by the progs loader)
1913                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
1914                         host_client->colors = (int)val->_float;
1915                 if (host_client->old_colors != host_client->colors)
1916                 {
1917                         host_client->old_colors = host_client->colors;
1918                         // send notification to all clients
1919                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
1920                         MSG_WriteByte (&sv.reliable_datagram, i);
1921                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
1922                 }
1923
1924                 // NEXUIZ_PLAYERMODEL
1925                 if( prog->fieldoffsets.playermodel >= 0 ) {
1926                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
1927                         if (model == NULL)
1928                                 model = "";
1929                         // always point the string back at host_client->name to keep it safe
1930                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
1931                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
1932                 }
1933
1934                 // NEXUIZ_PLAYERSKIN
1935                 if( prog->fieldoffsets.playerskin >= 0 ) {
1936                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
1937                         if (skin == NULL)
1938                                 skin = "";
1939                         // always point the string back at host_client->name to keep it safe
1940                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
1941                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
1942                 }
1943
1944                 // TODO: add an extension name for this [1/17/2008 Black]
1945                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
1946                         int oldclientcamera = host_client->clientcamera;
1947                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
1948                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
1949                         } else {
1950                                 host_client->clientcamera = val->edict;
1951                         }
1952
1953                         if( oldclientcamera != host_client->clientcamera ) {
1954                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
1955                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
1956                         }
1957                 }
1958
1959                 // frags
1960                 host_client->frags = (int)host_client->edict->fields.server->frags;
1961                 if(gamemode == GAME_NEXUIZ)
1962                         if(!host_client->spawned && host_client->netconnection)
1963                                 host_client->frags = -666;
1964                 if (host_client->old_frags != host_client->frags)
1965                 {
1966                         host_client->old_frags = host_client->frags;
1967                         // send notification to all clients
1968                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
1969                         MSG_WriteByte (&sv.reliable_datagram, i);
1970                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
1971                 }
1972         }
1973
1974         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
1975                 if (client->netconnection)
1976                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1977
1978         SZ_Clear (&sv.reliable_datagram);
1979 }
1980
1981
1982 /*
1983 =======================
1984 SV_SendClientMessages
1985 =======================
1986 */
1987 void SV_SendClientMessages (void)
1988 {
1989         int i, prepared = false;
1990
1991         if (sv.protocol == PROTOCOL_QUAKEWORLD)
1992                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
1993
1994         SV_FlushBroadcastMessages();
1995
1996 // update frags, names, etc
1997         SV_UpdateToReliableMessages();
1998
1999 // build individual updates
2000         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2001         {
2002                 if (!host_client->active)
2003                         continue;
2004                 if (!host_client->netconnection)
2005                         continue;
2006
2007                 if (host_client->netconnection->message.overflowed)
2008                 {
2009                         SV_DropClient (true);   // if the message couldn't send, kick off
2010                         continue;
2011                 }
2012
2013                 if (!prepared)
2014                 {
2015                         prepared = true;
2016                         // only prepare entities once per frame
2017                         SV_PrepareEntitiesForSending();
2018                 }
2019                 SV_SendClientDatagram (host_client);
2020         }
2021
2022 // clear muzzle flashes
2023         SV_CleanupEnts();
2024 }
2025
2026 static void SV_StartDownload_f(void)
2027 {
2028         if (host_client->download_file)
2029                 host_client->download_started = true;
2030 }
2031
2032 static void SV_Download_f(void)
2033 {
2034         const char *whichpack, *whichpack2, *extension;
2035
2036         if (Cmd_Argc() != 2)
2037         {
2038                 SV_ClientPrintf("usage: download <filename>\n");
2039                 return;
2040         }
2041
2042         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2043         {
2044                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2045                 return;
2046         }
2047
2048         if (host_client->download_file)
2049         {
2050                 // at this point we'll assume the previous download should be aborted
2051                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2052                 Host_ClientCommands("\nstopdownload\n");
2053
2054                 // close the file and reset variables
2055                 FS_Close(host_client->download_file);
2056                 host_client->download_file = NULL;
2057                 host_client->download_name[0] = 0;
2058                 host_client->download_expectedposition = 0;
2059                 host_client->download_started = false;
2060         }
2061
2062         if (!sv_allowdownloads.integer)
2063         {
2064                 SV_ClientPrintf("Downloads are disabled on this server\n");
2065                 Host_ClientCommands("\nstopdownload\n");
2066                 return;
2067         }
2068
2069         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2070         extension = FS_FileExtension(host_client->download_name);
2071
2072         // host_client is asking to download a specified file
2073         if (developer.integer >= 100)
2074                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2075
2076         if (!FS_FileExists(host_client->download_name))
2077         {
2078                 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);
2079                 Host_ClientCommands("\nstopdownload\n");
2080                 return;
2081         }
2082
2083         // check if the user is trying to download part of registered Quake(r)
2084         whichpack = FS_WhichPack(host_client->download_name);
2085         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2086         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2087         {
2088                 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);
2089                 Host_ClientCommands("\nstopdownload\n");
2090                 return;
2091         }
2092
2093         // check if the server has forbidden archive downloads entirely
2094         if (!sv_allowdownloads_inarchive.integer)
2095         {
2096                 whichpack = FS_WhichPack(host_client->download_name);
2097                 if (whichpack)
2098                 {
2099                         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);
2100                         Host_ClientCommands("\nstopdownload\n");
2101                         return;
2102                 }
2103         }
2104
2105         if (!sv_allowdownloads_config.integer)
2106         {
2107                 if (!strcasecmp(extension, "cfg"))
2108                 {
2109                         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);
2110                         Host_ClientCommands("\nstopdownload\n");
2111                         return;
2112                 }
2113         }
2114
2115         if (!sv_allowdownloads_dlcache.integer)
2116         {
2117                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2118                 {
2119                         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);
2120                         Host_ClientCommands("\nstopdownload\n");
2121                         return;
2122                 }
2123         }
2124
2125         if (!sv_allowdownloads_archive.integer)
2126         {
2127                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2128                 {
2129                         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);
2130                         Host_ClientCommands("\nstopdownload\n");
2131                         return;
2132                 }
2133         }
2134
2135         host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
2136         if (!host_client->download_file)
2137         {
2138                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2139                 Host_ClientCommands("\nstopdownload\n");
2140                 return;
2141         }
2142
2143         if (FS_FileSize(host_client->download_file) > 1<<30)
2144         {
2145                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2146                 Host_ClientCommands("\nstopdownload\n");
2147                 FS_Close(host_client->download_file);
2148                 host_client->download_file = NULL;
2149                 return;
2150         }
2151
2152         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2153
2154         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2155
2156         host_client->download_expectedposition = 0;
2157         host_client->download_started = false;
2158         host_client->sendsignon = true; // make sure this message is sent
2159
2160         // the rest of the download process is handled in SV_SendClientDatagram
2161         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2162         //
2163         // no svc_downloaddata messages will be sent until sv_startdownload is
2164         // sent by the client
2165 }
2166
2167 /*
2168 ==============================================================================
2169
2170 SERVER SPAWNING
2171
2172 ==============================================================================
2173 */
2174
2175 /*
2176 ================
2177 SV_ModelIndex
2178
2179 ================
2180 */
2181 int SV_ModelIndex(const char *s, int precachemode)
2182 {
2183         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);
2184         char filename[MAX_QPATH];
2185         if (!s || !*s)
2186                 return 0;
2187         // testing
2188         //if (precachemode == 2)
2189         //      return 0;
2190         strlcpy(filename, s, sizeof(filename));
2191         for (i = 2;i < limit;i++)
2192         {
2193                 if (!sv.model_precache[i][0])
2194                 {
2195                         if (precachemode)
2196                         {
2197                                 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))
2198                                 {
2199                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2200                                         return 0;
2201                                 }
2202                                 if (precachemode == 1)
2203                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2204                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2205                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2206                                 if (sv.state != ss_loading)
2207                                 {
2208                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2209                                         MSG_WriteShort(&sv.reliable_datagram, i);
2210                                         MSG_WriteString(&sv.reliable_datagram, filename);
2211                                 }
2212                                 return i;
2213                         }
2214                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2215                         return 0;
2216                 }
2217                 if (!strcmp(sv.model_precache[i], filename))
2218                         return i;
2219         }
2220         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2221         return 0;
2222 }
2223
2224 /*
2225 ================
2226 SV_SoundIndex
2227
2228 ================
2229 */
2230 int SV_SoundIndex(const char *s, int precachemode)
2231 {
2232         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);
2233         char filename[MAX_QPATH];
2234         if (!s || !*s)
2235                 return 0;
2236         // testing
2237         //if (precachemode == 2)
2238         //      return 0;
2239         strlcpy(filename, s, sizeof(filename));
2240         for (i = 1;i < limit;i++)
2241         {
2242                 if (!sv.sound_precache[i][0])
2243                 {
2244                         if (precachemode)
2245                         {
2246                                 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))
2247                                 {
2248                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2249                                         return 0;
2250                                 }
2251                                 if (precachemode == 1)
2252                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2253                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2254                                 if (sv.state != ss_loading)
2255                                 {
2256                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2257                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2258                                         MSG_WriteString(&sv.reliable_datagram, filename);
2259                                 }
2260                                 return i;
2261                         }
2262                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2263                         return 0;
2264                 }
2265                 if (!strcmp(sv.sound_precache[i], filename))
2266                         return i;
2267         }
2268         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2269         return 0;
2270 }
2271
2272 /*
2273 ================
2274 SV_ParticleEffectIndex
2275
2276 ================
2277 */
2278 int SV_ParticleEffectIndex(const char *name)
2279 {
2280         int i, argc, linenumber, effectnameindex;
2281         fs_offset_t filesize;
2282         unsigned char *filedata;
2283         const char *text, *textstart, *textend;
2284         char argv[16][1024];
2285         if (!sv.particleeffectnamesloaded)
2286         {
2287                 sv.particleeffectnamesloaded = true;
2288                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2289                 for (i = 0;i < EFFECT_TOTAL;i++)
2290                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2291                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2292                 if (filedata)
2293                 {
2294                         textstart = (const char *)filedata;
2295                         textend = (const char *)filedata + filesize;
2296                         text = textstart;
2297                         for (linenumber = 1;;linenumber++)
2298                         {
2299                                 argc = 0;
2300                                 for (;;)
2301                                 {
2302                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2303                                                 break;
2304                                         if (argc < 16)
2305                                         {
2306                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2307                                                 argc++;
2308                                         }
2309                                 }
2310                                 if (com_token[0] == 0)
2311                                         break; // if the loop exited and it's not a \n, it's EOF
2312                                 if (argc < 1)
2313                                         continue;
2314                                 if (!strcmp(argv[0], "effect"))
2315                                 {
2316                                         if (argc == 2)
2317                                         {
2318                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2319                                                 {
2320                                                         if (sv.particleeffectname[effectnameindex][0])
2321                                                         {
2322                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2323                                                                         break;
2324                                                         }
2325                                                         else
2326                                                         {
2327                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2328                                                                 break;
2329                                                         }
2330                                                 }
2331                                                 // if we run out of names, abort
2332                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2333                                                 {
2334                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2335                                                         break;
2336                                                 }
2337                                         }
2338                                 }
2339                         }
2340                         Mem_Free(filedata);
2341                 }
2342         }
2343         // search for the name
2344         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2345                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2346                         return effectnameindex;
2347         // return 0 if we couldn't find it
2348         return 0;
2349 }
2350
2351 /*
2352 ================
2353 SV_CreateBaseline
2354
2355 ================
2356 */
2357 static void SV_CreateBaseline (void)
2358 {
2359         int i, entnum, large;
2360         prvm_edict_t *svent;
2361
2362         // LordHavoc: clear *all* states (note just active ones)
2363         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2364         {
2365                 // get the current server version
2366                 svent = PRVM_EDICT_NUM(entnum);
2367
2368                 // LordHavoc: always clear state values, whether the entity is in use or not
2369                 svent->priv.server->baseline = defaultstate;
2370
2371                 if (svent->priv.server->free)
2372                         continue;
2373                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2374                         continue;
2375
2376                 // create entity baseline
2377                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2378                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2379                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2380                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2381                 if (entnum > 0 && entnum <= svs.maxclients)
2382                 {
2383                         svent->priv.server->baseline.colormap = entnum;
2384                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2385                 }
2386                 else
2387                 {
2388                         svent->priv.server->baseline.colormap = 0;
2389                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2390                 }
2391
2392                 large = false;
2393                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2394                 {
2395                         large = true;
2396                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2397                                 large = false;
2398                 }
2399
2400                 // add to the message
2401                 if (large)
2402                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2403                 else
2404                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2405                 MSG_WriteShort (&sv.signon, entnum);
2406
2407                 if (large)
2408                 {
2409                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2410                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2411                 }
2412                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2413                 {
2414                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2415                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2416                 }
2417                 else
2418                 {
2419                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2420                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2421                 }
2422                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2423                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2424                 for (i=0 ; i<3 ; i++)
2425                 {
2426                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2427                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2428                 }
2429         }
2430 }
2431
2432
2433 /*
2434 ================
2435 SV_SaveSpawnparms
2436
2437 Grabs the current state of each client for saving across the
2438 transition to another level
2439 ================
2440 */
2441 void SV_SaveSpawnparms (void)
2442 {
2443         int             i, j;
2444
2445         svs.serverflags = (int)prog->globals.server->serverflags;
2446
2447         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2448         {
2449                 if (!host_client->active)
2450                         continue;
2451
2452         // call the progs to get default spawn parms for the new client
2453                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2454                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2455                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2456                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2457         }
2458 }
2459
2460 /*
2461 ================
2462 SV_SpawnServer
2463
2464 This is called at the start of each level
2465 ================
2466 */
2467
2468 void SV_SpawnServer (const char *server)
2469 {
2470         prvm_edict_t *ent;
2471         int i;
2472         char *entities;
2473         model_t *worldmodel;
2474         char modelname[sizeof(sv.modelname)];
2475
2476         Con_DPrintf("SpawnServer: %s\n", server);
2477
2478         if (cls.state != ca_dedicated)
2479         {
2480                 SCR_BeginLoadingPlaque();
2481                 S_StopAllSounds();
2482         }
2483
2484         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2485         worldmodel = Mod_ForName(modelname, false, true, true);
2486         if (!worldmodel || !worldmodel->TraceBox)
2487         {
2488                 Con_Printf("Couldn't load map %s\n", modelname);
2489                 return;
2490         }
2491
2492         // let's not have any servers with no name
2493         if (hostname.string[0] == 0)
2494                 Cvar_Set ("hostname", "UNNAMED");
2495         scr_centertime_off = 0;
2496
2497         svs.changelevel_issued = false;         // now safe to issue another
2498
2499         // make the map a required file for clients
2500         Curl_ClearRequirements();
2501         Curl_RequireFile(modelname);
2502
2503 //
2504 // tell all connected clients that we are going to a new level
2505 //
2506         if (sv.active)
2507         {
2508                 client_t *client;
2509                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2510                 {
2511                         if (client->netconnection)
2512                         {
2513                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2514                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2515                         }
2516                 }
2517         }
2518         else
2519         {
2520                 // open server port
2521                 NetConn_OpenServerPorts(true);
2522         }
2523
2524 //
2525 // make cvars consistant
2526 //
2527         if (coop.integer)
2528                 Cvar_SetValue ("deathmatch", 0);
2529         // LordHavoc: it can be useful to have skills outside the range 0-3...
2530         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2531         //Cvar_SetValue ("skill", (float)current_skill);
2532         current_skill = (int)(skill.value + 0.5);
2533
2534 //
2535 // set up the new server
2536 //
2537         memset (&sv, 0, sizeof(sv));
2538         // if running a local client, make sure it doesn't try to access the last
2539         // level's data which is no longer valiud
2540         cls.signon = 0;
2541
2542         if(*sv_random_seed.string)
2543         {
2544                 srand(sv_random_seed.integer);
2545                 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);
2546         }
2547
2548         SV_VM_Setup();
2549
2550         sv.active = true;
2551
2552         strlcpy (sv.name, server, sizeof (sv.name));
2553
2554         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2555         if (sv.protocol == PROTOCOL_UNKNOWN)
2556         {
2557                 char buffer[1024];
2558                 Protocol_Names(buffer, sizeof(buffer));
2559                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2560                 sv.protocol = PROTOCOL_QUAKE;
2561         }
2562
2563         SV_VM_Begin();
2564
2565 // load progs to get entity field count
2566         //PR_LoadProgs ( sv_progs.string );
2567
2568         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2569         sv.datagram.cursize = 0;
2570         sv.datagram.data = sv.datagram_buf;
2571
2572         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2573         sv.reliable_datagram.cursize = 0;
2574         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2575
2576         sv.signon.maxsize = sizeof(sv.signon_buf);
2577         sv.signon.cursize = 0;
2578         sv.signon.data = sv.signon_buf;
2579
2580 // leave slots at start for clients only
2581         //prog->num_edicts = svs.maxclients+1;
2582
2583         sv.state = ss_loading;
2584         prog->allowworldwrites = true;
2585         sv.paused = false;
2586
2587         prog->globals.server->time = sv.time = 1.0;
2588
2589         Mod_ClearUsed();
2590         worldmodel->used = true;
2591
2592         strlcpy (sv.name, server, sizeof (sv.name));
2593         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2594         sv.worldmodel = worldmodel;
2595         sv.models[1] = sv.worldmodel;
2596
2597 //
2598 // clear world interaction links
2599 //
2600         VectorCopy(sv.worldmodel->normalmins, sv.world.areagrid_mins);
2601         VectorCopy(sv.worldmodel->normalmaxs, sv.world.areagrid_maxs);
2602         World_Clear(&sv.world);
2603
2604         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2605
2606         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2607         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2608         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2609         {
2610                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2611                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2612         }
2613
2614 //
2615 // load the rest of the entities
2616 //
2617         // AK possible hack since num_edicts is still 0
2618         ent = PRVM_EDICT_NUM(0);
2619         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2620         ent->priv.server->free = false;
2621         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2622         ent->fields.server->modelindex = 1;             // world model
2623         ent->fields.server->solid = SOLID_BSP;
2624         ent->fields.server->movetype = MOVETYPE_PUSH;
2625         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->mins);
2626         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->maxs);
2627         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->absmin);
2628         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->absmax);
2629
2630         if (coop.value)
2631                 prog->globals.server->coop = coop.integer;
2632         else
2633                 prog->globals.server->deathmatch = deathmatch.integer;
2634
2635         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2636
2637 // serverflags are for cross level information (sigils)
2638         prog->globals.server->serverflags = svs.serverflags;
2639
2640         // we need to reset the spawned flag on all connected clients here so that
2641         // their thinks don't run during startup (before PutClientInServer)
2642         // we also need to set up the client entities now
2643         // and we need to set the ->edict pointers to point into the progs edicts
2644         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2645         {
2646                 host_client->spawned = false;
2647                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2648                 PRVM_ED_ClearEdict(host_client->edict);
2649         }
2650
2651         // load replacement entity file if found
2652         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2653         {
2654                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2655                 PRVM_ED_LoadFromFile (entities);
2656                 Mem_Free(entities);
2657         }
2658         else
2659                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2660
2661
2662         // LordHavoc: clear world angles (to fix e3m3.bsp)
2663         VectorClear(prog->edicts->fields.server->angles);
2664
2665 // all setup is completed, any further precache statements are errors
2666         sv.state = ss_active;
2667         prog->allowworldwrites = false;
2668
2669 // run two frames to allow everything to settle
2670         for (i = 0;i < 2;i++)
2671         {
2672                 sv.frametime = 0.1;
2673                 SV_Physics ();
2674         }
2675
2676         Mod_PurgeUnused();
2677
2678 // create a baseline for more efficient communications
2679         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)
2680                 SV_CreateBaseline ();
2681
2682 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2683         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2684         {
2685                 if (!host_client->active)
2686                         continue;
2687                 if (host_client->netconnection)
2688                         SV_SendServerinfo(host_client);
2689                 else
2690                 {
2691                         int j;
2692                         // if client is a botclient coming from a level change, we need to
2693                         // set up client info that normally requires networking
2694
2695                         // copy spawn parms out of the client_t
2696                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2697                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2698
2699                         // call the spawn function
2700                         host_client->clientconnectcalled = true;
2701                         prog->globals.server->time = sv.time;
2702                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2703                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2704                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2705                         host_client->spawned = true;
2706                 }
2707         }
2708
2709         Con_DPrint("Server spawned.\n");
2710         NetConn_Heartbeat (2);
2711
2712         SV_VM_End();
2713 }
2714
2715 /////////////////////////////////////////////////////
2716 // SV VM stuff
2717
2718 static void SV_VM_CB_BeginIncreaseEdicts(void)
2719 {
2720         int i;
2721         prvm_edict_t *ent;
2722
2723         // links don't survive the transition, so unlink everything
2724         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2725         {
2726                 if (!ent->priv.server->free)
2727                         World_UnlinkEdict(prog->edicts + i);
2728                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
2729         }
2730         World_Clear(&sv.world);
2731 }
2732
2733 static void SV_VM_CB_EndIncreaseEdicts(void)
2734 {
2735         int i;
2736         prvm_edict_t *ent;
2737
2738         // link every entity except world
2739         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2740                 if (!ent->priv.server->free)
2741                         SV_LinkEdict(ent, false);
2742 }
2743
2744 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2745 {
2746         // LordHavoc: for consistency set these here
2747         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2748
2749         e->priv.server->move = false; // don't move on first frame
2750
2751         if (num >= 0 && num < svs.maxclients)
2752         {
2753                 prvm_eval_t *val;
2754                 // set colormap and team on newly created player entity
2755                 e->fields.server->colormap = num + 1;
2756                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
2757                 // set netname/clientcolors back to client values so that
2758                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
2759                 // reset them
2760                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
2761                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
2762                         val->_float = svs.clients[num].colors;
2763                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
2764                 if( prog->fieldoffsets.playermodel >= 0 )
2765                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
2766                 if( prog->fieldoffsets.playerskin >= 0 )
2767                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
2768                 // Assign netaddress (IP Address, etc)
2769                 if(prog->fieldoffsets.netaddress >= 0)
2770                 { // Valid Field; Process
2771                         if(svs.clients[num].netconnection != NULL)
2772                         {// Valid Address; Assign
2773                                 // Acquire Readable Address
2774                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
2775                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
2776                         }
2777                         else
2778                                 // Invalid / Bot
2779                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
2780                 }
2781         }
2782 }
2783
2784 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
2785 {
2786         World_UnlinkEdict(ed);          // unlink from world bsp
2787
2788         ed->fields.server->model = 0;
2789         ed->fields.server->takedamage = 0;
2790         ed->fields.server->modelindex = 0;
2791         ed->fields.server->colormap = 0;
2792         ed->fields.server->skin = 0;
2793         ed->fields.server->frame = 0;
2794         VectorClear(ed->fields.server->origin);
2795         VectorClear(ed->fields.server->angles);
2796         ed->fields.server->nextthink = -1;
2797         ed->fields.server->solid = 0;
2798 }
2799
2800 static void SV_VM_CB_CountEdicts(void)
2801 {
2802         int             i;
2803         prvm_edict_t    *ent;
2804         int             active, models, solid, step;
2805
2806         active = models = solid = step = 0;
2807         for (i=0 ; i<prog->num_edicts ; i++)
2808         {
2809                 ent = PRVM_EDICT_NUM(i);
2810                 if (ent->priv.server->free)
2811                         continue;
2812                 active++;
2813                 if (ent->fields.server->solid)
2814                         solid++;
2815                 if (ent->fields.server->model)
2816                         models++;
2817                 if (ent->fields.server->movetype == MOVETYPE_STEP)
2818                         step++;
2819         }
2820
2821         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
2822         Con_Printf("active    :%3i\n", active);
2823         Con_Printf("view      :%3i\n", models);
2824         Con_Printf("touch     :%3i\n", solid);
2825         Con_Printf("step      :%3i\n", step);
2826 }
2827
2828 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
2829 {
2830         // remove things from different skill levels or deathmatch
2831         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
2832         {
2833                 if (deathmatch.integer)
2834                 {
2835                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
2836                         {
2837                                 return false;
2838                         }
2839                 }
2840                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
2841                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
2842                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
2843                 {
2844                         return false;
2845                 }
2846         }
2847         return true;
2848 }
2849
2850 static void SV_VM_Setup(void)
2851 {
2852         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
2853         extern cvar_t csqc_progcrc;
2854         extern cvar_t csqc_progsize;
2855         size_t csprogsdatasize;
2856         PRVM_Begin;
2857         PRVM_InitProg( PRVM_SERVERPROG );
2858
2859         // allocate the mempools
2860         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
2861         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
2862         prog->builtins = vm_sv_builtins;
2863         prog->numbuiltins = vm_sv_numbuiltins;
2864         prog->headercrc = PROGHEADER_CRC;
2865         prog->max_edicts = 512;
2866         if (sv.protocol == PROTOCOL_QUAKE)
2867                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
2868         else if (sv.protocol == PROTOCOL_QUAKEDP)
2869                 prog->limit_edicts = 2048; // guessing
2870         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2871                 prog->limit_edicts = 2048; // guessing!
2872         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2873                 prog->limit_edicts = 4096; // guessing!
2874         else
2875                 prog->limit_edicts = MAX_EDICTS;
2876         prog->reserved_edicts = svs.maxclients;
2877         prog->edictprivate_size = sizeof(edict_engineprivate_t);
2878         prog->name = "server";
2879         prog->extensionstring = vm_sv_extensions;
2880         prog->loadintoworld = true;
2881
2882         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
2883         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
2884         prog->init_edict = SV_VM_CB_InitEdict;
2885         prog->free_edict = SV_VM_CB_FreeEdict;
2886         prog->count_edicts = SV_VM_CB_CountEdicts;
2887         prog->load_edict = SV_VM_CB_LoadEdict;
2888         prog->init_cmd = VM_SV_Cmd_Init;
2889         prog->reset_cmd = VM_SV_Cmd_Reset;
2890         prog->error_cmd = Host_Error;
2891
2892         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
2893         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
2894
2895         // some mods compiled with scrambling compilers lack certain critical
2896         // global names and field names such as "self" and "time" and "nextthink"
2897         // so we have to set these offsets manually, matching the entvars_t
2898         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
2899         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
2900         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
2901         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
2902         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
2903         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
2904         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
2905         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
2906         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
2907         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
2908         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
2909         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
2910         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
2911         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
2912         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
2913         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
2914         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
2915         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
2916         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
2917         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
2918         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
2919         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
2920         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
2921         // OP_STATE is always supported on server (due to entvars_t)
2922         prog->flag |= PRVM_OP_STATE;
2923
2924         VM_CustomStats_Clear();//[515]: csqc
2925
2926         PRVM_End;
2927
2928         // 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
2929         sv.csqc_progname[0] = 0;
2930         sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
2931         sv.csqc_progsize = csprogsdatasize;
2932         if (sv.csqc_progsize > 0)
2933         {
2934                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2935                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2936         }
2937 }
2938
2939 void SV_VM_Begin(void)
2940 {
2941         PRVM_Begin;
2942         PRVM_SetProg( PRVM_SERVERPROG );
2943
2944         prog->globals.server->time = (float) sv.time;
2945 }
2946
2947 void SV_VM_End(void)
2948 {
2949         PRVM_End;
2950 }