redesigned csqc shared entity .Version handling, now internally uses a
[xonotic/darkplaces.git] / sv_main.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20 // sv_main.c -- server main program
21
22 #include "quakedef.h"
23 #include "sv_demo.h"
24 #include "libcurl.h"
25 #include "csprogs.h"
26
27 static void SV_SaveEntFile_f(void);
28 static void SV_StartDownload_f(void);
29 static void SV_Download_f(void);
30 static void SV_VM_Setup();
31
32 void VM_CustomStats_Clear (void);
33 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
34 void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int maxsize, int numstates, const entity_state_t *states);
35
36 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
37 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
38 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
39 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
40 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
41 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
42 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
43 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
44 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
45 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
46 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
47
48 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
49 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
50 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
51 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
52 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
53 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
54 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
55 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
56 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
57 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
58 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"};
59 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"};
60 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"};
61 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)"};
62 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)"};
63 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)"};
64 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!)"};
65 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
66 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
67 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"};
68 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
69 cvar_t sv_cullentities_trace_delay_players = {0, "sv_cullentities_trace_delay_players", "0.2", "number of seconds until the entity gets actually culled if it is a player entity"};
70 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
71 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
72 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
73 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"};
74 cvar_t sv_cullentities_trace_samples_players = {0, "sv_cullentities_trace_samples_players", "8", "number of samples to test for entity culling when the entity is a player entity"};
75 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
76 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
77 cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
78 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)"};
79 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)"};
80 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
81 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
82 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"};
83 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"};
84 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)"};
85 cvar_t sv_gameplayfix_droptofloorstartsolid_nudgetocorrect = {0, "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect", "1", "tries to nudge stuck items and monsters out of walls before droptofloor is performed"};
86 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)"};
87 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"};
88 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
89 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"};
90 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"};
91 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"};
92 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)"};
93 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)"};
94 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"};
95 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"};
96 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
97 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
98 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
99 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
100 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)"};
101 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
102 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
103 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
104 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
105 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
106 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
107 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
108 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
109 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"};
110 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)"};
111 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)"};
112 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)"};
113 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
114 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
115 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
116 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"};
117 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"};
118 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"};
119 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"};
120 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
121
122 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
123 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
124 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
125 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
126 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
127 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
128 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
129 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
130 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
131 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)"};
132
133 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
134 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
135 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
136 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
137 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
138 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
139 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
140 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
141 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
142 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
143 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
144 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
145 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
146 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
147 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
148 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
149 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
150 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
151 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
152 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
153 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
154
155 cvar_t sv_autodemo_perclient = {CVAR_SAVE, "sv_autodemo_perclient", "0", "set to 1 to enable autorecorded per-client demos (they'll start to record at the beginning of a match); set it to 2 to also record client->server packets (for debugging)"};
156 cvar_t sv_autodemo_perclient_nameformat = {CVAR_SAVE, "sv_autodemo_perclient_nameformat", "sv_autodemos/%Y-%m-%d_%H-%M", "The format of the sv_autodemo_perclient filename, followed by the map name, the client number and the IP address + port number, separated by underscores" };
157
158
159 server_t sv;
160 server_static_t svs;
161
162 mempool_t *sv_mempool = NULL;
163
164 extern cvar_t slowmo;
165 extern float            scr_centertime_off;
166
167 // MUST match effectnameindex_t in client.h
168 static const char *standardeffectnames[EFFECT_TOTAL] =
169 {
170         "",
171         "TE_GUNSHOT",
172         "TE_GUNSHOTQUAD",
173         "TE_SPIKE",
174         "TE_SPIKEQUAD",
175         "TE_SUPERSPIKE",
176         "TE_SUPERSPIKEQUAD",
177         "TE_WIZSPIKE",
178         "TE_KNIGHTSPIKE",
179         "TE_EXPLOSION",
180         "TE_EXPLOSIONQUAD",
181         "TE_TAREXPLOSION",
182         "TE_TELEPORT",
183         "TE_LAVASPLASH",
184         "TE_SMALLFLASH",
185         "TE_FLAMEJET",
186         "EF_FLAME",
187         "TE_BLOOD",
188         "TE_SPARK",
189         "TE_PLASMABURN",
190         "TE_TEI_G3",
191         "TE_TEI_SMOKE",
192         "TE_TEI_BIGEXPLOSION",
193         "TE_TEI_PLASMAHIT",
194         "EF_STARDUST",
195         "TR_ROCKET",
196         "TR_GRENADE",
197         "TR_BLOOD",
198         "TR_WIZSPIKE",
199         "TR_SLIGHTBLOOD",
200         "TR_KNIGHTSPIKE",
201         "TR_VORESPIKE",
202         "TR_NEHAHRASMOKE",
203         "TR_NEXUIZPLASMA",
204         "TR_GLOWTRAIL",
205         "SVC_PARTICLE"
206 };
207
208 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
209
210 prvm_required_field_t reqfields[] =
211 {
212         {ev_entity, "cursor_trace_ent"},
213         {ev_entity, "drawonlytoclient"},
214         {ev_entity, "exteriormodeltoclient"},
215         {ev_entity, "nodrawtoclient"},
216         {ev_entity, "tag_entity"},
217         {ev_entity, "viewmodelforclient"},
218         {ev_float, "SendFlags"},
219         {ev_float, "Version"},
220         {ev_float, "alpha"},
221         {ev_float, "ammo_cells1"},
222         {ev_float, "ammo_lava_nails"},
223         {ev_float, "ammo_multi_rockets"},
224         {ev_float, "ammo_nails1"},
225         {ev_float, "ammo_plasma"},
226         {ev_float, "ammo_rockets1"},
227         {ev_float, "ammo_shells1"},
228         {ev_float, "button3"},
229         {ev_float, "button4"},
230         {ev_float, "button5"},
231         {ev_float, "button6"},
232         {ev_float, "button7"},
233         {ev_float, "button8"},
234         {ev_float, "button9"},
235         {ev_float, "button10"},
236         {ev_float, "button11"},
237         {ev_float, "button12"},
238         {ev_float, "button13"},
239         {ev_float, "button14"},
240         {ev_float, "button15"},
241         {ev_float, "button16"},
242         {ev_float, "buttonchat"},
243         {ev_float, "buttonuse"},
244         {ev_float, "clientcolors"},
245         {ev_float, "cursor_active"},
246         {ev_float, "disableclientprediction"},
247         {ev_float, "fullbright"},
248         {ev_float, "glow_color"},
249         {ev_float, "glow_size"},
250         {ev_float, "glow_trail"},
251         {ev_float, "gravity"},
252         {ev_float, "idealpitch"},
253         {ev_float, "items2"},
254         {ev_float, "light_lev"},
255         {ev_float, "modelflags"},
256         {ev_float, "pflags"},
257         {ev_float, "ping"},
258         {ev_float, "pitch_speed"},
259         {ev_float, "pmodel"},
260         {ev_float, "renderamt"}, // HalfLife support
261         {ev_float, "rendermode"}, // HalfLife support
262         {ev_float, "scale"},
263         {ev_float, "style"},
264         {ev_float, "tag_index"},
265         {ev_float, "viewzoom"},
266         {ev_function, "SendEntity"},
267         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
268         {ev_function, "customizeentityforclient"},
269         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
270         {ev_string, "netaddress"},
271         {ev_string, "playermodel"},
272         {ev_string, "playerskin"},
273         {ev_vector, "color"},
274         {ev_vector, "colormod"},
275         {ev_vector, "cursor_screen"},
276         {ev_vector, "cursor_trace_endpos"},
277         {ev_vector, "cursor_trace_start"},
278         {ev_vector, "movement"},
279         {ev_vector, "punchvector"},
280 };
281
282
283
284 //============================================================================
285
286 void SV_AreaStats_f(void)
287 {
288         World_PrintAreaStats(&sv.world, "server");
289 }
290
291 /*
292 ===============
293 SV_Init
294 ===============
295 */
296 void SV_Init (void)
297 {
298         // init the csqc progs cvars, since they are updated/used by the server code
299         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
300         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
301         extern cvar_t csqc_progcrc;
302         extern cvar_t csqc_progsize;
303         Cvar_RegisterVariable (&csqc_progname);
304         Cvar_RegisterVariable (&csqc_progcrc);
305         Cvar_RegisterVariable (&csqc_progsize);
306
307         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
308         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
309         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
310         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
311
312         Cvar_RegisterVariable (&coop);
313         Cvar_RegisterVariable (&deathmatch);
314         Cvar_RegisterVariable (&fraglimit);
315         Cvar_RegisterVariable (&gamecfg);
316         Cvar_RegisterVariable (&noexit);
317         Cvar_RegisterVariable (&nomonsters);
318         Cvar_RegisterVariable (&pausable);
319         Cvar_RegisterVariable (&pr_checkextension);
320         Cvar_RegisterVariable (&samelevel);
321         Cvar_RegisterVariable (&skill);
322         Cvar_RegisterVariable (&slowmo);
323         Cvar_RegisterVariable (&sv_accelerate);
324         Cvar_RegisterVariable (&sv_aim);
325         Cvar_RegisterVariable (&sv_airaccel_qw);
326         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
327         Cvar_RegisterVariable (&sv_airaccelerate);
328         Cvar_RegisterVariable (&sv_allowdownloads);
329         Cvar_RegisterVariable (&sv_allowdownloads_archive);
330         Cvar_RegisterVariable (&sv_allowdownloads_config);
331         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
332         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
333         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
334         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
335         Cvar_RegisterVariable (&sv_clmovement_enable);
336         Cvar_RegisterVariable (&sv_clmovement_minping);
337         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
338         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
339         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
340         Cvar_RegisterVariable (&sv_cullentities_pvs);
341         Cvar_RegisterVariable (&sv_cullentities_stats);
342         Cvar_RegisterVariable (&sv_cullentities_trace);
343         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
344         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
345         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
346         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
347         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
348         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
349         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
350         Cvar_RegisterVariable (&sv_debugmove);
351         Cvar_RegisterVariable (&sv_echobprint);
352         Cvar_RegisterVariable (&sv_edgefriction);
353         Cvar_RegisterVariable (&sv_entpatch);
354         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
355         Cvar_RegisterVariable (&sv_freezenonclients);
356         Cvar_RegisterVariable (&sv_friction);
357         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
358         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
359         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
360         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
361         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
362         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
363         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
364         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
365         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
366         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
367         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
368         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
369         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
370         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
371         Cvar_RegisterVariable (&sv_gravity);
372         Cvar_RegisterVariable (&sv_idealpitchscale);
373         Cvar_RegisterVariable (&sv_jumpstep);
374         Cvar_RegisterVariable (&sv_jumpvelocity);
375         Cvar_RegisterVariable (&sv_maxairspeed);
376         Cvar_RegisterVariable (&sv_maxrate);
377         Cvar_RegisterVariable (&sv_maxspeed);
378         Cvar_RegisterVariable (&sv_maxvelocity);
379         Cvar_RegisterVariable (&sv_newflymove);
380         Cvar_RegisterVariable (&sv_nostep);
381         Cvar_RegisterVariable (&sv_playerphysicsqc);
382         Cvar_RegisterVariable (&sv_progs);
383         Cvar_RegisterVariable (&sv_protocolname);
384         Cvar_RegisterVariable (&sv_random_seed);
385         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
386         Cvar_RegisterVariable (&sv_sound_land);
387         Cvar_RegisterVariable (&sv_sound_watersplash);
388         Cvar_RegisterVariable (&sv_stepheight);
389         Cvar_RegisterVariable (&sv_stopspeed);
390         Cvar_RegisterVariable (&sv_wallfriction);
391         Cvar_RegisterVariable (&sv_wateraccelerate);
392         Cvar_RegisterVariable (&sv_waterfriction);
393         Cvar_RegisterVariable (&sys_ticrate);
394         Cvar_RegisterVariable (&teamplay);
395         Cvar_RegisterVariable (&timelimit);
396
397         Cvar_RegisterVariable (&saved1);
398         Cvar_RegisterVariable (&saved2);
399         Cvar_RegisterVariable (&saved3);
400         Cvar_RegisterVariable (&saved4);
401         Cvar_RegisterVariable (&savedgamecfg);
402         Cvar_RegisterVariable (&scratch1);
403         Cvar_RegisterVariable (&scratch2);
404         Cvar_RegisterVariable (&scratch3);
405         Cvar_RegisterVariable (&scratch4);
406         Cvar_RegisterVariable (&temp1);
407
408         // LordHavoc: Nehahra uses these to pass data around cutscene demos
409         if (gamemode == GAME_NEHAHRA)
410         {
411                 Cvar_RegisterVariable (&nehx00);
412                 Cvar_RegisterVariable (&nehx01);
413                 Cvar_RegisterVariable (&nehx02);
414                 Cvar_RegisterVariable (&nehx03);
415                 Cvar_RegisterVariable (&nehx04);
416                 Cvar_RegisterVariable (&nehx05);
417                 Cvar_RegisterVariable (&nehx06);
418                 Cvar_RegisterVariable (&nehx07);
419                 Cvar_RegisterVariable (&nehx08);
420                 Cvar_RegisterVariable (&nehx09);
421                 Cvar_RegisterVariable (&nehx10);
422                 Cvar_RegisterVariable (&nehx11);
423                 Cvar_RegisterVariable (&nehx12);
424                 Cvar_RegisterVariable (&nehx13);
425                 Cvar_RegisterVariable (&nehx14);
426                 Cvar_RegisterVariable (&nehx15);
427                 Cvar_RegisterVariable (&nehx16);
428                 Cvar_RegisterVariable (&nehx17);
429                 Cvar_RegisterVariable (&nehx18);
430                 Cvar_RegisterVariable (&nehx19);
431         }
432         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
433
434         Cvar_RegisterVariable (&sv_autodemo_perclient);
435         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
436
437         // any special defaults for gamemodes go here
438         if (gamemode == GAME_HIPNOTIC)
439         {
440                 // 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.
441                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
442                 // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
443                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
444         }
445         if (gamemode == GAME_ROGUE)
446         {
447                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
448                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
449         }
450
451         sv_mempool = Mem_AllocPool("server", 0, NULL);
452 }
453
454 static void SV_SaveEntFile_f(void)
455 {
456         char basename[MAX_QPATH];
457         if (!sv.active || !sv.worldmodel)
458         {
459                 Con_Print("Not running a server\n");
460                 return;
461         }
462         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
463         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
464 }
465
466
467 /*
468 =============================================================================
469
470 EVENT MESSAGES
471
472 =============================================================================
473 */
474
475 /*
476 ==================
477 SV_StartParticle
478
479 Make sure the event gets sent to all clients
480 ==================
481 */
482 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
483 {
484         int i;
485
486         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
487                 return;
488         MSG_WriteByte (&sv.datagram, svc_particle);
489         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
490         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
491         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
492         for (i=0 ; i<3 ; i++)
493                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
494         MSG_WriteByte (&sv.datagram, count);
495         MSG_WriteByte (&sv.datagram, color);
496         SV_FlushBroadcastMessages();
497 }
498
499 /*
500 ==================
501 SV_StartEffect
502
503 Make sure the event gets sent to all clients
504 ==================
505 */
506 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
507 {
508         if (modelindex >= 256 || startframe >= 256)
509         {
510                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
511                         return;
512                 MSG_WriteByte (&sv.datagram, svc_effect2);
513                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
514                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
515                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
516                 MSG_WriteShort (&sv.datagram, modelindex);
517                 MSG_WriteShort (&sv.datagram, startframe);
518                 MSG_WriteByte (&sv.datagram, framecount);
519                 MSG_WriteByte (&sv.datagram, framerate);
520         }
521         else
522         {
523                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
524                         return;
525                 MSG_WriteByte (&sv.datagram, svc_effect);
526                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
527                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
528                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
529                 MSG_WriteByte (&sv.datagram, modelindex);
530                 MSG_WriteByte (&sv.datagram, startframe);
531                 MSG_WriteByte (&sv.datagram, framecount);
532                 MSG_WriteByte (&sv.datagram, framerate);
533         }
534         SV_FlushBroadcastMessages();
535 }
536
537 /*
538 ==================
539 SV_StartSound
540
541 Each entity can have eight independant sound sources, like voice,
542 weapon, feet, etc.
543
544 Channel 0 is an auto-allocate channel, the others override anything
545 already running on that entity/channel pair.
546
547 An attenuation of 0 will play full volume everywhere in the level.
548 Larger attenuations will drop off.  (max 4 attenuation)
549
550 ==================
551 */
552 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
553 {
554         int sound_num, field_mask, i, ent;
555
556         if (volume < 0 || volume > 255)
557         {
558                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
559                 return;
560         }
561
562         if (attenuation < 0 || attenuation > 4)
563         {
564                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
565                 return;
566         }
567
568         if (channel < 0 || channel > 7)
569         {
570                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
571                 return;
572         }
573
574         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
575                 return;
576
577 // find precache number for sound
578         sound_num = SV_SoundIndex(sample, 1);
579         if (!sound_num)
580                 return;
581
582         ent = PRVM_NUM_FOR_EDICT(entity);
583
584         field_mask = 0;
585         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
586                 field_mask |= SND_VOLUME;
587         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
588                 field_mask |= SND_ATTENUATION;
589         if (ent >= 8192)
590                 field_mask |= SND_LARGEENTITY;
591         if (sound_num >= 256 || channel >= 8)
592                 field_mask |= SND_LARGESOUND;
593
594 // directed messages go only to the entity they are targeted on
595         MSG_WriteByte (&sv.datagram, svc_sound);
596         MSG_WriteByte (&sv.datagram, field_mask);
597         if (field_mask & SND_VOLUME)
598                 MSG_WriteByte (&sv.datagram, volume);
599         if (field_mask & SND_ATTENUATION)
600                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
601         if (field_mask & SND_LARGEENTITY)
602         {
603                 MSG_WriteShort (&sv.datagram, ent);
604                 MSG_WriteByte (&sv.datagram, channel);
605         }
606         else
607                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
608         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
609                 MSG_WriteShort (&sv.datagram, sound_num);
610         else
611                 MSG_WriteByte (&sv.datagram, sound_num);
612         for (i = 0;i < 3;i++)
613                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
614         SV_FlushBroadcastMessages();
615 }
616
617 /*
618 ==================
619 SV_StartPointSound
620
621 Nearly the same logic as SV_StartSound, except an origin
622 instead of an entity is provided and channel is omitted.
623
624 The entity sent to the client is 0 (world) and the channel
625 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
626 function, therefore the check for it is omitted.
627
628 ==================
629 */
630 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
631 {
632         int sound_num, field_mask, i;
633
634         if (volume < 0 || volume > 255)
635         {
636                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
637                 return;
638         }
639
640         if (attenuation < 0 || attenuation > 4)
641         {
642                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
643                 return;
644         }
645
646         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
647                 return;
648
649         // find precache number for sound
650         sound_num = SV_SoundIndex(sample, 1);
651         if (!sound_num)
652                 return;
653
654         field_mask = 0;
655         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
656                 field_mask |= SND_VOLUME;
657         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
658                 field_mask |= SND_ATTENUATION;
659         if (sound_num >= 256)
660                 field_mask |= SND_LARGESOUND;
661
662 // directed messages go only to the entity they are targeted on
663         MSG_WriteByte (&sv.datagram, svc_sound);
664         MSG_WriteByte (&sv.datagram, field_mask);
665         if (field_mask & SND_VOLUME)
666                 MSG_WriteByte (&sv.datagram, volume);
667         if (field_mask & SND_ATTENUATION)
668                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
669         // Always write entnum 0 for the world entity
670         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
671         if (field_mask & SND_LARGESOUND)
672                 MSG_WriteShort (&sv.datagram, sound_num);
673         else
674                 MSG_WriteByte (&sv.datagram, sound_num);
675         for (i = 0;i < 3;i++)
676                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
677         SV_FlushBroadcastMessages();
678 }
679
680 /*
681 ==============================================================================
682
683 CLIENT SPAWNING
684
685 ==============================================================================
686 */
687
688 /*
689 ================
690 SV_SendServerinfo
691
692 Sends the first message from the server to a connected client.
693 This will be sent on the initial connection and upon each server load.
694 ================
695 */
696 void SV_SendServerinfo (client_t *client)
697 {
698         int i;
699         char message[128];
700
701         // we know that this client has a netconnection and thus is not a bot
702
703         // edicts get reallocated on level changes, so we need to update it here
704         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
705
706         // clear cached stuff that depends on the level
707         client->weaponmodel[0] = 0;
708         client->weaponmodelindex = 0;
709
710         // LordHavoc: clear entityframe tracking
711         client->latestframenum = 0;
712
713         // initialize the movetime, so a speedhack can't make use of the time before this client joined
714         client->cmd.time = sv.time;
715
716         if (client->entitydatabase)
717                 EntityFrame_FreeDatabase(client->entitydatabase);
718         if (client->entitydatabase4)
719                 EntityFrame4_FreeDatabase(client->entitydatabase4);
720         if (client->entitydatabase5)
721                 EntityFrame5_FreeDatabase(client->entitydatabase5);
722
723         memset(client->stats, 0, sizeof(client->stats));
724         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
725
726         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)
727         {
728                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
729                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
730                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
731                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
732                 else
733                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
734         }
735
736         // reset csqc entity versions
737         for (i = 0;i < prog->max_edicts;i++)
738         {
739                 client->csqcentityscope[i] = 0;
740                 client->csqcentitysendflags[i] = 0xFFFFFF;
741         }
742
743         SZ_Clear (&client->netconnection->message);
744         MSG_WriteByte (&client->netconnection->message, svc_print);
745         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
746         MSG_WriteString (&client->netconnection->message,message);
747
748         SV_StopDemoRecording(client); // to split up demos into different files
749         if(sv_autodemo_perclient.integer && client->netconnection)
750         {
751                 char demofile[MAX_OSPATH];
752                 char levelname[MAX_QPATH];
753                 char ipaddress[MAX_QPATH];
754                 size_t i;
755
756                 // start a new demo file
757                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
758                 if (strrchr(levelname, '.'))
759                         *(strrchr(levelname, '.')) = 0;
760
761                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
762                 for(i = 0; ipaddress[i]; ++i)
763                         if(!isalnum(ipaddress[i]))
764                                 ipaddress[i] = '-';
765                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
766
767                 SV_StartDemoRecording(client, demofile, -1);
768         }
769
770         //[515]: init csprogs according to version of svprogs, check the crc, etc.
771         if (sv.csqc_progname[0])
772         {
773                 prvm_eval_t *val;
774                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
775                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
776                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
777                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
778                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
779                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
780                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
781
782                 if(client->sv_demo_file != NULL)
783                 {
784                         void *csqcbuf;
785                         fs_offset_t csqclen;
786                         int csqccrc;
787                         int i;
788                         char buf[NET_MAXMESSAGE];
789                         sizebuf_t sb;
790
791                         csqcbuf = FS_LoadFile(sv.csqc_progname, tempmempool, true, &csqclen);
792                         if(csqcbuf)
793                         {
794                                 csqccrc = CRC_Block(csqcbuf, csqclen);
795                                 sb.data = (void *) buf;
796                                 sb.maxsize = sizeof(buf);
797                                 i = 0;
798                                 while(MakeDownloadPacket(sv.csqc_progname, csqcbuf, csqclen, csqccrc, i++, &sb, sv.protocol))
799                                         SV_WriteDemoMessage(client, &sb, false);
800                                 Mem_Free(csqcbuf);
801                         }
802                 }
803
804                 //[515]: init stufftext string (it is sent before svc_serverinfo)
805                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
806                 if (val)
807                 {
808                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
809                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
810                 }
811         }
812
813         if (sv_allowdownloads.integer)
814         {
815                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
816                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1\n");
817         }
818
819         // send at this time so it's guaranteed to get executed at the right time
820         {
821                 client_t *save;
822                 save = host_client;
823                 host_client = client;
824                 Curl_SendRequirements();
825                 host_client = save;
826         }
827
828         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
829         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
830         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
831
832         if (!coop.integer && deathmatch.integer)
833                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
834         else
835                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
836
837         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
838
839         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
840                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
841         MSG_WriteByte (&client->netconnection->message, 0);
842
843         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
844                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
845         MSG_WriteByte (&client->netconnection->message, 0);
846
847 // send music
848         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
849         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
850         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
851
852 // set view
853 // store this in clientcamera, too
854         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
855         MSG_WriteByte (&client->netconnection->message, svc_setview);
856         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
857
858         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
859         MSG_WriteByte (&client->netconnection->message, 1);
860
861         client->spawned = false;                // need prespawn, spawn, etc
862         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
863
864         // clear movement info until client enters the new level properly
865         memset(&client->cmd, 0, sizeof(client->cmd));
866         client->movesequence = 0;
867 #ifdef NUM_PING_TIMES
868         for (i = 0;i < NUM_PING_TIMES;i++)
869                 client->ping_times[i] = 0;
870         client->num_pings = 0;
871 #endif
872         client->ping = 0;
873 }
874
875 /*
876 ================
877 SV_ConnectClient
878
879 Initializes a client_t for a new net connection.  This will only be called
880 once for a player each game, not once for each level change.
881 ================
882 */
883 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
884 {
885         client_t                *client;
886         int                             i;
887         float                   spawn_parms[NUM_SPAWN_PARMS];
888
889         client = svs.clients + clientnum;
890
891 // set up the client_t
892         if (sv.loadgame)
893                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
894         memset (client, 0, sizeof(*client));
895         client->active = true;
896         client->netconnection = netconnection;
897
898         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
899
900         strlcpy(client->name, "unconnected", sizeof(client->name));
901         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
902         client->spawned = false;
903         client->edict = PRVM_EDICT_NUM(clientnum+1);
904         if (client->netconnection)
905                 client->netconnection->message.allowoverflow = true;            // we can catch it
906         // prepare the unreliable message buffer
907         client->unreliablemsg.data = client->unreliablemsg_data;
908         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
909         // updated by receiving "rate" command from client, this is also the default if not using a DP client
910         client->rate = 1000000000;
911         // no limits for local player
912         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
913                 client->rate = 1000000000;
914         client->connecttime = realtime;
915
916         if (sv.loadgame)
917                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
918         else
919         {
920                 // call the progs to get default spawn parms for the new client
921                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
922                 prog->globals.server->self = 0;
923                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
924                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
925                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
926
927                 // set up the entity for this client (including .colormap, .team, etc)
928                 PRVM_ED_ClearEdict(client->edict);
929         }
930
931         // don't call SendServerinfo for a fresh botclient because its fields have
932         // not been set up by the qc yet
933         if (client->netconnection)
934                 SV_SendServerinfo (client);
935         else
936                 client->spawned = true;
937 }
938
939
940 /*
941 ===============================================================================
942
943 FRAME UPDATES
944
945 ===============================================================================
946 */
947
948 /*
949 =============================================================================
950
951 The PVS must include a small area around the client to allow head bobbing
952 or other small motion on the client side.  Otherwise, a bob might cause an
953 entity that should be visible to not show up, especially when the bob
954 crosses a waterline.
955
956 =============================================================================
957 */
958
959 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
960 {
961         int i;
962         unsigned int sendflags;
963         unsigned int version;
964         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
965         unsigned int customizeentityforclient;
966         float f;
967         vec3_t cullmins, cullmaxs;
968         dp_model_t *model;
969         prvm_eval_t *val, *val2;
970
971         // this 2 billion unit check is actually to detect NAN origins
972         // (we really don't want to send those)
973         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
974                 return false;
975
976         // EF_NODRAW prevents sending for any reason except for your own
977         // client, so we must keep all clients in this superset
978         effects = (unsigned)ent->fields.server->effects;
979
980         // we can omit invisible entities with no effects that are not clients
981         // LordHavoc: this could kill tags attached to an invisible entity, I
982         // just hope we never have to support that case
983         i = (int)ent->fields.server->modelindex;
984         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
985
986         flags = 0;
987         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
988         glowsize = (unsigned char)bound(0, i, 255);
989         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
990                 flags |= RENDER_GLOWTRAIL;
991         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
992                 flags |= RENDER_VIEWMODEL;
993
994         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
995         light[0] = (unsigned short)bound(0, f, 65535);
996         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
997         light[1] = (unsigned short)bound(0, f, 65535);
998         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
999         light[2] = (unsigned short)bound(0, f, 65535);
1000         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1001         light[3] = (unsigned short)bound(0, f, 65535);
1002         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1003         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1004
1005         if (gamemode == GAME_TENEBRAE)
1006         {
1007                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1008                 if (effects & 16)
1009                 {
1010                         effects &= ~16;
1011                         lightpflags |= PFLAGS_FULLDYNAMIC;
1012                 }
1013                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1014                 if (effects & 32)
1015                 {
1016                         effects &= ~32;
1017                         light[0] = (int)(0.2*256);
1018                         light[1] = (int)(1.0*256);
1019                         light[2] = (int)(0.2*256);
1020                         light[3] = 200;
1021                         lightpflags |= PFLAGS_FULLDYNAMIC;
1022                 }
1023         }
1024
1025         specialvisibilityradius = 0;
1026         if (lightpflags & PFLAGS_FULLDYNAMIC)
1027                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1028         if (glowsize)
1029                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1030         if (flags & RENDER_GLOWTRAIL)
1031                 specialvisibilityradius = max(specialvisibilityradius, 100);
1032         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1033         {
1034                 if (effects & EF_BRIGHTFIELD)
1035                         specialvisibilityradius = max(specialvisibilityradius, 80);
1036                 if (effects & EF_MUZZLEFLASH)
1037                         specialvisibilityradius = max(specialvisibilityradius, 100);
1038                 if (effects & EF_BRIGHTLIGHT)
1039                         specialvisibilityradius = max(specialvisibilityradius, 400);
1040                 if (effects & EF_DIMLIGHT)
1041                         specialvisibilityradius = max(specialvisibilityradius, 200);
1042                 if (effects & EF_RED)
1043                         specialvisibilityradius = max(specialvisibilityradius, 200);
1044                 if (effects & EF_BLUE)
1045                         specialvisibilityradius = max(specialvisibilityradius, 200);
1046                 if (effects & EF_FLAME)
1047                         specialvisibilityradius = max(specialvisibilityradius, 250);
1048                 if (effects & EF_STARDUST)
1049                         specialvisibilityradius = max(specialvisibilityradius, 100);
1050         }
1051
1052         // early culling checks
1053         // (final culling is done by SV_MarkWriteEntityStateToClient)
1054         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1055         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1056                 return false;
1057
1058         *cs = defaultstate;
1059         cs->active = true;
1060         cs->number = enumber;
1061         VectorCopy(ent->fields.server->origin, cs->origin);
1062         VectorCopy(ent->fields.server->angles, cs->angles);
1063         cs->flags = flags;
1064         cs->effects = effects;
1065         cs->colormap = (unsigned)ent->fields.server->colormap;
1066         cs->modelindex = modelindex;
1067         cs->skin = (unsigned)ent->fields.server->skin;
1068         cs->frame = (unsigned)ent->fields.server->frame;
1069         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1070         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1071         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1072         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1073         cs->customizeentityforclient = customizeentityforclient;
1074         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1075         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1076         cs->glowsize = glowsize;
1077
1078         // don't need to init cs->colormod because the defaultstate did that for us
1079         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1080         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1081         if (val->vector[0] || val->vector[1] || val->vector[2])
1082         {
1083                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1084                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1085                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1086         }
1087
1088         cs->modelindex = modelindex;
1089
1090         cs->alpha = 255;
1091         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1092         if (f)
1093         {
1094                 i = (int)f;
1095                 cs->alpha = (unsigned char)bound(0, i, 255);
1096         }
1097         // halflife
1098         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1099         if (f)
1100         {
1101                 i = (int)f;
1102                 cs->alpha = (unsigned char)bound(0, i, 255);
1103         }
1104
1105         cs->scale = 16;
1106         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1107         if (f)
1108         {
1109                 i = (int)f;
1110                 cs->scale = (unsigned char)bound(0, i, 255);
1111         }
1112
1113         cs->glowcolor = 254;
1114         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1115         if (f)
1116                 cs->glowcolor = (int)f;
1117
1118         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1119                 cs->effects |= EF_FULLBRIGHT;
1120
1121         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1122         if (val && val->_float)
1123                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1124
1125         if (ent->fields.server->movetype == MOVETYPE_STEP)
1126                 cs->flags |= RENDER_STEP;
1127         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)
1128                 cs->flags |= RENDER_LOWPRECISION;
1129         if (ent->fields.server->colormap >= 1024)
1130                 cs->flags |= RENDER_COLORMAPPED;
1131         if (cs->viewmodelforclient)
1132                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1133
1134         cs->light[0] = light[0];
1135         cs->light[1] = light[1];
1136         cs->light[2] = light[2];
1137         cs->light[3] = light[3];
1138         cs->lightstyle = lightstyle;
1139         cs->lightpflags = lightpflags;
1140
1141         cs->specialvisibilityradius = specialvisibilityradius;
1142
1143         // calculate the visible box of this entity (don't use the physics box
1144         // as that is often smaller than a model, and would not count
1145         // specialvisibilityradius)
1146         if ((model = sv.models[modelindex]))
1147         {
1148                 float scale = cs->scale * (1.0f / 16.0f);
1149                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1150                 {
1151                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1152                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1153                 }
1154                 else if (cs->angles[1])
1155                 {
1156                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1157                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1158                 }
1159                 else
1160                 {
1161                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1162                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1163                 }
1164         }
1165         else
1166         {
1167                 // if there is no model (or it could not be loaded), use the physics box
1168                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1169                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1170         }
1171         if (specialvisibilityradius)
1172         {
1173                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1174                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1175                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1176                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1177                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1178                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1179         }
1180
1181         // calculate center of bbox for network prioritization purposes
1182         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1183
1184         // if culling box has moved, update pvs cluster links
1185         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1186         {
1187                 VectorCopy(cullmins, ent->priv.server->cullmins);
1188                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1189                 // a value of -1 for pvs_numclusters indicates that the links are not
1190                 // cached, and should be re-tested each time, this is the case if the
1191                 // culling box touches too many pvs clusters to store, or if the world
1192                 // model does not support FindBoxClusters
1193                 ent->priv.server->pvs_numclusters = -1;
1194                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1195                 {
1196                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1197                         if (i <= MAX_ENTITYCLUSTERS)
1198                                 ent->priv.server->pvs_numclusters = i;
1199                 }
1200         }
1201
1202         // we need to do some csqc entity upkeep here
1203         // get self.SendFlags and clear them
1204         // (to let the QC know that they've been read)
1205         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity);
1206         if (val->function)
1207         {
1208                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1209                 sendflags = (unsigned int)val->_float;
1210                 val->_float = 0;
1211                 // legacy self.Version system
1212                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1213                 if (val2->_float)
1214                 {
1215                         version = (unsigned int)val2->_float;
1216                         if (sv.csqcentityversion[enumber] != version)
1217                                 sendflags = 0xFFFFFF;
1218                         sv.csqcentityversion[enumber] = version;
1219                 }
1220                 // move sendflags into the per-client sendflags
1221                 if (sendflags)
1222                         for (i = 0;i < svs.maxclients;i++)
1223                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1224         }
1225
1226         return true;
1227 }
1228
1229 void SV_PrepareEntitiesForSending(void)
1230 {
1231         int e;
1232         prvm_edict_t *ent;
1233         // send all entities that touch the pvs
1234         sv.numsendentities = 0;
1235         sv.sendentitiesindex[0] = NULL;
1236         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1237         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1238         {
1239                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1240                 {
1241                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1242                         sv.numsendentities++;
1243                 }
1244         }
1245 }
1246
1247 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1248 {
1249         int isbmodel;
1250         dp_model_t *model;
1251         prvm_edict_t *ed;
1252         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1253                 return;
1254         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1255         sv.writeentitiestoclient_stats_totalentities++;
1256
1257         if (s->customizeentityforclient)
1258         {
1259                 prog->globals.server->self = s->number;
1260                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1261                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1262                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1263                         return;
1264         }
1265
1266         // never reject player
1267         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1268         {
1269                 // check various rejection conditions
1270                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1271                         return;
1272                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1273                         return;
1274                 if (s->effects & EF_NODRAW)
1275                         return;
1276                 // LordHavoc: only send entities with a model or important effects
1277                 if (!s->modelindex && s->specialvisibilityradius == 0)
1278                         return;
1279
1280                 isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
1281                 // viewmodels don't have visibility checking
1282                 if (s->viewmodelforclient)
1283                 {
1284                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1285                                 return;
1286                 }
1287                 else if (s->tagentity)
1288                 {
1289                         // tag attached entities simply check their parent
1290                         if (!sv.sendentitiesindex[s->tagentity])
1291                                 return;
1292                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1293                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1294                                 return;
1295                 }
1296                 // always send world submodels in newer protocols because they don't
1297                 // generate much traffic (in old protocols they hog bandwidth)
1298                 // but only if sv_cullentities_nevercullbmodels is off
1299                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1300                 {
1301                         // entity has survived every check so far, check if visible
1302                         ed = PRVM_EDICT_NUM(s->number);
1303
1304                         // if not touching a visible leaf
1305                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1306                         {
1307                                 if (ed->priv.server->pvs_numclusters < 0)
1308                                 {
1309                                         // entity too big for clusters list
1310                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1311                                         {
1312                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1313                                                 return;
1314                                         }
1315                                 }
1316                                 else
1317                                 {
1318                                         int i;
1319                                         // check cached clusters list
1320                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1321                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1322                                                         break;
1323                                         if (i == ed->priv.server->pvs_numclusters)
1324                                         {
1325                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1326                                                 return;
1327                                         }
1328                                 }
1329                         }
1330
1331                         // or not seen by random tracelines
1332                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1333                         {
1334                                 int samples =
1335                                         s->number <= svs.maxclients
1336                                                 ? sv_cullentities_trace_samples_players.integer
1337                                                 :
1338                                         s->specialvisibilityradius
1339                                                 ? sv_cullentities_trace_samples_extra.integer
1340                                                 : sv_cullentities_trace_samples.integer;
1341                                 float enlarge = sv_cullentities_trace_enlarge.value;
1342
1343                                 qboolean visible = TRUE;
1344
1345                                 if(samples > 0)
1346                                 {
1347                                         do
1348                                         {
1349                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1350                                                         break; // directly visible from the server's view
1351
1352                                                 if(sv_cullentities_trace_prediction.integer)
1353                                                 {
1354                                                         vec3_t predeye;
1355
1356                                                         // get player velocity
1357                                                         float predtime = bound(0, host_client->ping, 0.2); // / 2
1358                                                                 // sorry, no wallhacking by high ping please, and at 200ms
1359                                                                 // ping a FPS is annoying to play anyway and a player is
1360                                                                 // likely to have changed his direction
1361                                                         VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1362                                                         if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1363                                                         {
1364                                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1365                                                                         break; // directly visible from the predicted view
1366                                                         }
1367                                                         else
1368                                                         {
1369                                                                 //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1370                                                         }
1371                                                 }
1372
1373                                                 // when we get here, we can't see the entity
1374                                                 visible = false;
1375                                         }
1376                                         while(0);
1377
1378                                         if(visible)
1379                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1380                                                         realtime + (
1381                                                                 s->number <= svs.maxclients
1382                                                                         ? sv_cullentities_trace_delay_players.value
1383                                                                         : sv_cullentities_trace_delay.value
1384                                                         );
1385                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1386                                         {
1387                                                 sv.writeentitiestoclient_stats_culled_trace++;
1388                                                 return;
1389                                         }
1390                                 }
1391                         }
1392                 }
1393         }
1394
1395         // this just marks it for sending
1396         // FIXME: it would be more efficient to send here, but the entity
1397         // compressor isn't that flexible
1398         sv.writeentitiestoclient_stats_visibleentities++;
1399         sv.sententities[s->number] = sv.sententitiesmark;
1400 }
1401
1402 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1403 {
1404         int i, numsendstates;
1405         entity_state_t *s;
1406         prvm_edict_t *camera;
1407
1408         // if there isn't enough space to accomplish anything, skip it
1409         if (msg->cursize + 25 > maxsize)
1410                 return;
1411
1412         sv.writeentitiestoclient_msg = msg;
1413         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1414
1415         sv.writeentitiestoclient_stats_culled_pvs = 0;
1416         sv.writeentitiestoclient_stats_culled_trace = 0;
1417         sv.writeentitiestoclient_stats_visibleentities = 0;
1418         sv.writeentitiestoclient_stats_totalentities = 0;
1419
1420 // find the client's PVS
1421         // the real place being tested from
1422         camera = PRVM_EDICT_NUM( client->clientcamera );
1423         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1424         sv.writeentitiestoclient_pvsbytes = 0;
1425         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1426                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
1427
1428         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1429
1430         sv.sententitiesmark++;
1431
1432         for (i = 0;i < sv.numsendentities;i++)
1433                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1434
1435         numsendstates = 0;
1436         for (i = 0;i < sv.numsendentities;i++)
1437         {
1438                 if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
1439                 {
1440                         s = &sv.writeentitiestoclient_sendstates[numsendstates++];
1441                         *s = sv.sendentities[i];
1442                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1443                                 s->flags |= RENDER_EXTERIORMODEL;
1444                 }
1445         }
1446
1447         if (sv_cullentities_stats.integer)
1448                 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);
1449
1450         EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1451
1452         if (client->entitydatabase5)
1453                 EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence);
1454         else if (client->entitydatabase4)
1455         {
1456                 EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1457                 Protocol_WriteStatsReliable();
1458         }
1459         else if (client->entitydatabase)
1460         {
1461                 EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1462                 Protocol_WriteStatsReliable();
1463         }
1464         else
1465         {
1466                 EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1467                 Protocol_WriteStatsReliable();
1468         }
1469 }
1470
1471 /*
1472 =============
1473 SV_CleanupEnts
1474
1475 =============
1476 */
1477 static void SV_CleanupEnts (void)
1478 {
1479         int             e;
1480         prvm_edict_t    *ent;
1481
1482         ent = PRVM_NEXT_EDICT(prog->edicts);
1483         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1484                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1485 }
1486
1487 /*
1488 ==================
1489 SV_WriteClientdataToMessage
1490
1491 ==================
1492 */
1493 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1494 {
1495         int             bits;
1496         int             i;
1497         prvm_edict_t    *other;
1498         int             items;
1499         prvm_eval_t     *val;
1500         vec3_t  punchvector;
1501         int             viewzoom;
1502         const char *s;
1503         float   *statsf = (float *)stats;
1504
1505 //
1506 // send a damage message
1507 //
1508         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1509         {
1510                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1511                 MSG_WriteByte (msg, svc_damage);
1512                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1513                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1514                 for (i=0 ; i<3 ; i++)
1515                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1516
1517                 ent->fields.server->dmg_take = 0;
1518                 ent->fields.server->dmg_save = 0;
1519         }
1520
1521 //
1522 // send the current viewpos offset from the view entity
1523 //
1524         SV_SetIdealPitch ();            // how much to look up / down ideally
1525
1526 // a fixangle might get lost in a dropped packet.  Oh well.
1527         if(ent->fields.server->fixangle)
1528         {
1529                 // angle fixing was requested by global thinking code...
1530                 // so store the current angles for later use
1531                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1532                 host_client->fixangle_angles_set = TRUE;
1533
1534                 // and clear fixangle for the next frame
1535                 ent->fields.server->fixangle = 0;
1536         }
1537
1538         if (host_client->fixangle_angles_set)
1539         {
1540                 MSG_WriteByte (msg, svc_setangle);
1541                 for (i=0 ; i < 3 ; i++)
1542                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1543                 host_client->fixangle_angles_set = FALSE;
1544         }
1545
1546         // stuff the sigil bits into the high bits of items for sbar, or else
1547         // mix in items2
1548         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1549         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1550                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1551         else
1552                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1553
1554         VectorClear(punchvector);
1555         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1556                 VectorCopy(val->vector, punchvector);
1557
1558         // cache weapon model name and index in client struct to save time
1559         // (this search can be almost 1% of cpu time!)
1560         s = PRVM_GetString(ent->fields.server->weaponmodel);
1561         if (strcmp(s, client->weaponmodel))
1562         {
1563                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1564                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1565         }
1566
1567         viewzoom = 255;
1568         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1569                 viewzoom = (int)(val->_float * 255.0f);
1570         if (viewzoom == 0)
1571                 viewzoom = 255;
1572
1573         bits = 0;
1574
1575         if ((int)ent->fields.server->flags & FL_ONGROUND)
1576                 bits |= SU_ONGROUND;
1577         if (ent->fields.server->waterlevel >= 2)
1578                 bits |= SU_INWATER;
1579         if (ent->fields.server->idealpitch)
1580                 bits |= SU_IDEALPITCH;
1581
1582         for (i=0 ; i<3 ; i++)
1583         {
1584                 if (ent->fields.server->punchangle[i])
1585                         bits |= (SU_PUNCH1<<i);
1586                 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)
1587                         if (punchvector[i])
1588                                 bits |= (SU_PUNCHVEC1<<i);
1589                 if (ent->fields.server->velocity[i])
1590                         bits |= (SU_VELOCITY1<<i);
1591         }
1592
1593         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1594         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1595         stats[STAT_ITEMS] = items;
1596         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1597         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1598         stats[STAT_WEAPON] = client->weaponmodelindex;
1599         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1600         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1601         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1602         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1603         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1604         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1605         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1606         stats[STAT_VIEWZOOM] = viewzoom;
1607         stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
1608         stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
1609         // the QC bumps these itself by sending svc_'s, so we have to keep them
1610         // zero or they'll be corrected by the engine
1611         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1612         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1613
1614         // movement settings for prediction
1615         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1616         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1617         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1618         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1619         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1620         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1621         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1622         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1623         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1624         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1625         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1626         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1627         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1628         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1629         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1630         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1631         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1632         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1633         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1634         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1635         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1636         statsf[STAT_TIMELIMIT] = timelimit.value;
1637
1638         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)
1639         {
1640                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1641                 bits |= SU_ITEMS;
1642                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1643                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1644                 bits |= SU_WEAPON;
1645                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1646                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1647                         if (viewzoom != 255)
1648                                 bits |= SU_VIEWZOOM;
1649         }
1650
1651         if (bits >= 65536)
1652                 bits |= SU_EXTEND1;
1653         if (bits >= 16777216)
1654                 bits |= SU_EXTEND2;
1655
1656         // send the data
1657         MSG_WriteByte (msg, svc_clientdata);
1658         MSG_WriteShort (msg, bits);
1659         if (bits & SU_EXTEND1)
1660                 MSG_WriteByte(msg, bits >> 16);
1661         if (bits & SU_EXTEND2)
1662                 MSG_WriteByte(msg, bits >> 24);
1663
1664         if (bits & SU_VIEWHEIGHT)
1665                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1666
1667         if (bits & SU_IDEALPITCH)
1668                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1669
1670         for (i=0 ; i<3 ; i++)
1671         {
1672                 if (bits & (SU_PUNCH1<<i))
1673                 {
1674                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1675                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1676                         else
1677                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1678                 }
1679                 if (bits & (SU_PUNCHVEC1<<i))
1680                 {
1681                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1682                                 MSG_WriteCoord16i(msg, punchvector[i]);
1683                         else
1684                                 MSG_WriteCoord32f(msg, punchvector[i]);
1685                 }
1686                 if (bits & (SU_VELOCITY1<<i))
1687                 {
1688                         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)
1689                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1690                         else
1691                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1692                 }
1693         }
1694
1695         if (bits & SU_ITEMS)
1696                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1697
1698         if (sv.protocol == PROTOCOL_DARKPLACES5)
1699         {
1700                 if (bits & SU_WEAPONFRAME)
1701                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1702                 if (bits & SU_ARMOR)
1703                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1704                 if (bits & SU_WEAPON)
1705                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1706                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1707                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1708                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1709                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1710                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1711                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1712                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1713                 if (bits & SU_VIEWZOOM)
1714                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1715         }
1716         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)
1717         {
1718                 if (bits & SU_WEAPONFRAME)
1719                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1720                 if (bits & SU_ARMOR)
1721                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1722                 if (bits & SU_WEAPON)
1723                 {
1724                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1725                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
1726                         else
1727                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
1728                 }
1729                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1730                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1731                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1732                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1733                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1734                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1735                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1736                 {
1737                         for (i = 0;i < 32;i++)
1738                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1739                                         break;
1740                         MSG_WriteByte (msg, i);
1741                 }
1742                 else
1743                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1744                 if (bits & SU_VIEWZOOM)
1745                 {
1746                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1747                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1748                         else
1749                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1750                 }
1751         }
1752 }
1753
1754 void SV_FlushBroadcastMessages(void)
1755 {
1756         int i;
1757         client_t *client;
1758         if (sv.datagram.cursize <= 0)
1759                 return;
1760         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1761         {
1762                 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])))
1763                         continue;
1764                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1765                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1766         }
1767         SZ_Clear(&sv.datagram);
1768 }
1769
1770 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize)
1771 {
1772         // scan the splitpoints to find out how many we can fit in
1773         int numsegments, j, split;
1774         if (!client->unreliablemsg_splitpoints)
1775                 return;
1776         // always accept the first one if it's within 1024 bytes, this ensures
1777         // that very big datagrams which are over the rate limit still get
1778         // through, just to keep it working
1779         j = msg->cursize + client->unreliablemsg_splitpoint[0];
1780         if (maxsize < 1024 && j > maxsize && j <= 1024)
1781         {
1782                 numsegments = 1;
1783                 maxsize = 1024;
1784         }
1785         else
1786                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1787                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
1788                                 break;
1789         if (numsegments > 0)
1790         {
1791                 // some will fit, so add the ones that will fit
1792                 split = client->unreliablemsg_splitpoint[numsegments-1];
1793                 // note this discards ones that were accepted by the segments scan but
1794                 // can not fit, such as a really huge first one that will never ever
1795                 // fit in a packet...
1796                 if (msg->cursize + split <= maxsize)
1797                         SZ_Write(msg, client->unreliablemsg.data, split);
1798                 // remove the part we sent, keeping any remaining data
1799                 client->unreliablemsg.cursize -= split;
1800                 if (client->unreliablemsg.cursize > 0)
1801                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1802                 // adjust remaining splitpoints
1803                 client->unreliablemsg_splitpoints -= numsegments;
1804                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1805                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1806         }
1807 }
1808
1809 /*
1810 =======================
1811 SV_SendClientDatagram
1812 =======================
1813 */
1814 static void SV_SendClientDatagram (client_t *client)
1815 {
1816         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1817         sizebuf_t msg;
1818         int stats[MAX_CL_STATS];
1819         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1820
1821         // obey rate limit by limiting packet frequency if the packet size
1822         // limiting fails
1823         // (usually this is caused by reliable messages)
1824         if (!NetConn_CanSend(client->netconnection))
1825                 return;
1826
1827         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1828         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1829         if (sv_maxrate.integer != maxrate)
1830                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1831
1832         // clientrate determines the 'cleartime' of a packet
1833         // (how long to wait before sending another, based on this packet's size)
1834         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1835
1836         switch (sv.protocol)
1837         {
1838         case PROTOCOL_QUAKE:
1839         case PROTOCOL_QUAKEDP:
1840         case PROTOCOL_NEHAHRAMOVIE:
1841         case PROTOCOL_NEHAHRABJP:
1842         case PROTOCOL_NEHAHRABJP2:
1843         case PROTOCOL_NEHAHRABJP3:
1844         case PROTOCOL_QUAKEWORLD:
1845                 // no packet size limit support on Quake protocols because it just
1846                 // causes missing entities/effects
1847                 // packets are simply sent less often to obey the rate limit
1848                 maxsize = 1024;
1849                 maxsize2 = 1024;
1850                 break;
1851         case PROTOCOL_DARKPLACES1:
1852         case PROTOCOL_DARKPLACES2:
1853         case PROTOCOL_DARKPLACES3:
1854         case PROTOCOL_DARKPLACES4:
1855                 // no packet size limit support on DP1-4 protocols because they kick
1856                 // the client off if they overflow, and miss effects
1857                 // packets are simply sent less often to obey the rate limit
1858                 maxsize = sizeof(sv_sendclientdatagram_buf);
1859                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1860                 break;
1861         default:
1862                 // DP5 and later protocols support packet size limiting which is a
1863                 // better method than limiting packet frequency as QW does
1864                 //
1865                 // at very low rates (or very small sys_ticrate) the packet size is
1866                 // not reduced below 128, but packets may be sent less often
1867                 maxsize = (int)(clientrate * sys_ticrate.value);
1868                 maxsize = bound(128, maxsize, 1400);
1869                 maxsize2 = 1400;
1870                 // csqc entities can easily exceed 128 bytes, so disable throttling in
1871                 // mods that use csqc (they are likely to use less bandwidth anyway)
1872                 if (sv.csqc_progsize > 0)
1873                         maxsize = maxsize2;
1874                 break;
1875         }
1876
1877         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1878         {
1879                 // for good singleplayer, send huge packets
1880                 maxsize = sizeof(sv_sendclientdatagram_buf);
1881                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1882                 // never limit frequency in singleplayer
1883                 clientrate = 1000000000;
1884         }
1885
1886         // while downloading, limit entity updates to half the packet
1887         // (any leftover space will be used for downloading)
1888         if (host_client->download_file)
1889                 maxsize /= 2;
1890
1891         msg.data = sv_sendclientdatagram_buf;
1892         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1893         msg.cursize = 0;
1894         msg.allowoverflow = false;
1895
1896         if (host_client->spawned)
1897         {
1898                 // the player is in the game
1899                 MSG_WriteByte (&msg, svc_time);
1900                 MSG_WriteFloat (&msg, sv.time);
1901
1902                 // add the client specific data to the datagram
1903                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1904                 // now update the stats[] array using any registered custom fields
1905                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1906                 // set host_client->statsdeltabits
1907                 Protocol_UpdateClientStats (stats);
1908
1909                 // add as many queued unreliable messages (effects) as we can fit
1910                 // limit effects to half of the remaining space
1911                 if (client->unreliablemsg.cursize)
1912                         SV_WriteUnreliableMessages (client, &msg, (msg.cursize + maxsize) / 2);
1913
1914                 // now write as many entities as we can fit, and also sends stats
1915                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
1916         }
1917         else if (realtime > client->keepalivetime)
1918         {
1919                 // the player isn't totally in the game yet
1920                 // send small keepalive messages if too much time has passed
1921                 // (may also be sending downloads)
1922                 client->keepalivetime = realtime + 5;
1923                 MSG_WriteChar (&msg, svc_nop);
1924         }
1925
1926         // if a download is active, see if there is room to fit some download data
1927         // in this packet
1928         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
1929         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1930         {
1931                 fs_offset_t downloadstart;
1932                 unsigned char data[1400];
1933                 downloadstart = FS_Tell(host_client->download_file);
1934                 downloadsize = min(downloadsize, (int)sizeof(data));
1935                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1936                 // note this sends empty messages if at the end of the file, which is
1937                 // necessary to keep the packet loss logic working
1938                 // (the last blocks may be lost and need to be re-sent, and that will
1939                 //  only occur if the client acks the empty end messages, revealing
1940                 //  a gap in the download progress, causing the last blocks to be
1941                 //  sent again)
1942                 MSG_WriteChar (&msg, svc_downloaddata);
1943                 MSG_WriteLong (&msg, downloadstart);
1944                 MSG_WriteShort (&msg, downloadsize);
1945                 if (downloadsize > 0)
1946                         SZ_Write (&msg, data, downloadsize);
1947         }
1948
1949         // reliable only if none is in progress
1950         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
1951                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
1952         // unreliable
1953         SV_WriteDemoMessage(client, &msg, false);
1954
1955 // send the datagram
1956         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1957         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1958                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1959 }
1960
1961 /*
1962 =======================
1963 SV_UpdateToReliableMessages
1964 =======================
1965 */
1966 static void SV_UpdateToReliableMessages (void)
1967 {
1968         int i, j;
1969         client_t *client;
1970         prvm_eval_t *val;
1971         const char *name;
1972         const char *model;
1973         const char *skin;
1974
1975 // check for changes to be sent over the reliable streams
1976         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1977         {
1978                 // update the host_client fields we care about according to the entity fields
1979                 host_client->edict = PRVM_EDICT_NUM(i+1);
1980
1981                 // DP_SV_CLIENTNAME
1982                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1983                 if (name == NULL)
1984                         name = "";
1985                 // always point the string back at host_client->name to keep it safe
1986                 strlcpy (host_client->name, name, sizeof (host_client->name));
1987                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1988                 if (strcmp(host_client->old_name, host_client->name))
1989                 {
1990                         if (host_client->spawned)
1991                                 SV_BroadcastPrintf("%s changed name to %s\n", host_client->old_name, host_client->name);
1992                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
1993                         // send notification to all clients
1994                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
1995                         MSG_WriteByte (&sv.reliable_datagram, i);
1996                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
1997                         SV_WriteNetnameIntoDemo(host_client);
1998                 }
1999
2000                 // DP_SV_CLIENTCOLORS
2001                 // this is always found (since it's added by the progs loader)
2002                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2003                         host_client->colors = (int)val->_float;
2004                 if (host_client->old_colors != host_client->colors)
2005                 {
2006                         host_client->old_colors = host_client->colors;
2007                         // send notification to all clients
2008                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2009                         MSG_WriteByte (&sv.reliable_datagram, i);
2010                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2011                 }
2012
2013                 // NEXUIZ_PLAYERMODEL
2014                 if( prog->fieldoffsets.playermodel >= 0 ) {
2015                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2016                         if (model == NULL)
2017                                 model = "";
2018                         // always point the string back at host_client->name to keep it safe
2019                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2020                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2021                 }
2022
2023                 // NEXUIZ_PLAYERSKIN
2024                 if( prog->fieldoffsets.playerskin >= 0 ) {
2025                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2026                         if (skin == NULL)
2027                                 skin = "";
2028                         // always point the string back at host_client->name to keep it safe
2029                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2030                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2031                 }
2032
2033                 // TODO: add an extension name for this [1/17/2008 Black]
2034                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2035                         int oldclientcamera = host_client->clientcamera;
2036                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2037                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2038                         } else {
2039                                 host_client->clientcamera = val->edict;
2040                         }
2041
2042                         if( oldclientcamera != host_client->clientcamera ) {
2043                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
2044                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2045                         }
2046                 }
2047
2048                 // frags
2049                 host_client->frags = (int)host_client->edict->fields.server->frags;
2050                 if(gamemode == GAME_NEXUIZ)
2051                         if(!host_client->spawned && host_client->netconnection)
2052                                 host_client->frags = -666;
2053                 if (host_client->old_frags != host_client->frags)
2054                 {
2055                         host_client->old_frags = host_client->frags;
2056                         // send notification to all clients
2057                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2058                         MSG_WriteByte (&sv.reliable_datagram, i);
2059                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2060                 }
2061         }
2062
2063         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2064                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2065                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2066
2067         SZ_Clear (&sv.reliable_datagram);
2068 }
2069
2070
2071 /*
2072 =======================
2073 SV_SendClientMessages
2074 =======================
2075 */
2076 void SV_SendClientMessages (void)
2077 {
2078         int i, prepared = false;
2079
2080         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2081                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2082
2083         SV_FlushBroadcastMessages();
2084
2085 // update frags, names, etc
2086         SV_UpdateToReliableMessages();
2087
2088 // build individual updates
2089         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2090         {
2091                 if (!host_client->active)
2092                         continue;
2093                 if (!host_client->netconnection)
2094                         continue;
2095
2096                 if (host_client->netconnection->message.overflowed)
2097                 {
2098                         SV_DropClient (true);   // if the message couldn't send, kick off
2099                         continue;
2100                 }
2101
2102                 if (!prepared)
2103                 {
2104                         prepared = true;
2105                         // only prepare entities once per frame
2106                         SV_PrepareEntitiesForSending();
2107                 }
2108                 SV_SendClientDatagram (host_client);
2109         }
2110
2111 // clear muzzle flashes
2112         SV_CleanupEnts();
2113 }
2114
2115 static void SV_StartDownload_f(void)
2116 {
2117         if (host_client->download_file)
2118                 host_client->download_started = true;
2119 }
2120
2121 static void SV_Download_f(void)
2122 {
2123         const char *whichpack, *whichpack2, *extension;
2124
2125         if (Cmd_Argc() != 2)
2126         {
2127                 SV_ClientPrintf("usage: download <filename>\n");
2128                 return;
2129         }
2130
2131         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2132         {
2133                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2134                 return;
2135         }
2136
2137         if (host_client->download_file)
2138         {
2139                 // at this point we'll assume the previous download should be aborted
2140                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2141                 Host_ClientCommands("\nstopdownload\n");
2142
2143                 // close the file and reset variables
2144                 FS_Close(host_client->download_file);
2145                 host_client->download_file = NULL;
2146                 host_client->download_name[0] = 0;
2147                 host_client->download_expectedposition = 0;
2148                 host_client->download_started = false;
2149         }
2150
2151         if (!sv_allowdownloads.integer)
2152         {
2153                 SV_ClientPrintf("Downloads are disabled on this server\n");
2154                 Host_ClientCommands("\nstopdownload\n");
2155                 return;
2156         }
2157
2158         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2159         extension = FS_FileExtension(host_client->download_name);
2160
2161         // host_client is asking to download a specified file
2162         if (developer.integer >= 100)
2163                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2164
2165         if (!FS_FileExists(host_client->download_name))
2166         {
2167                 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);
2168                 Host_ClientCommands("\nstopdownload\n");
2169                 return;
2170         }
2171
2172         // check if the user is trying to download part of registered Quake(r)
2173         whichpack = FS_WhichPack(host_client->download_name);
2174         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2175         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2176         {
2177                 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);
2178                 Host_ClientCommands("\nstopdownload\n");
2179                 return;
2180         }
2181
2182         // check if the server has forbidden archive downloads entirely
2183         if (!sv_allowdownloads_inarchive.integer)
2184         {
2185                 whichpack = FS_WhichPack(host_client->download_name);
2186                 if (whichpack)
2187                 {
2188                         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);
2189                         Host_ClientCommands("\nstopdownload\n");
2190                         return;
2191                 }
2192         }
2193
2194         if (!sv_allowdownloads_config.integer)
2195         {
2196                 if (!strcasecmp(extension, "cfg"))
2197                 {
2198                         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);
2199                         Host_ClientCommands("\nstopdownload\n");
2200                         return;
2201                 }
2202         }
2203
2204         if (!sv_allowdownloads_dlcache.integer)
2205         {
2206                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2207                 {
2208                         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);
2209                         Host_ClientCommands("\nstopdownload\n");
2210                         return;
2211                 }
2212         }
2213
2214         if (!sv_allowdownloads_archive.integer)
2215         {
2216                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2217                 {
2218                         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);
2219                         Host_ClientCommands("\nstopdownload\n");
2220                         return;
2221                 }
2222         }
2223
2224         host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
2225         if (!host_client->download_file)
2226         {
2227                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2228                 Host_ClientCommands("\nstopdownload\n");
2229                 return;
2230         }
2231
2232         if (FS_FileSize(host_client->download_file) > 1<<30)
2233         {
2234                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2235                 Host_ClientCommands("\nstopdownload\n");
2236                 FS_Close(host_client->download_file);
2237                 host_client->download_file = NULL;
2238                 return;
2239         }
2240
2241         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2242
2243         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2244
2245         host_client->download_expectedposition = 0;
2246         host_client->download_started = false;
2247         host_client->sendsignon = true; // make sure this message is sent
2248
2249         // the rest of the download process is handled in SV_SendClientDatagram
2250         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2251         //
2252         // no svc_downloaddata messages will be sent until sv_startdownload is
2253         // sent by the client
2254 }
2255
2256 /*
2257 ==============================================================================
2258
2259 SERVER SPAWNING
2260
2261 ==============================================================================
2262 */
2263
2264 /*
2265 ================
2266 SV_ModelIndex
2267
2268 ================
2269 */
2270 int SV_ModelIndex(const char *s, int precachemode)
2271 {
2272         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);
2273         char filename[MAX_QPATH];
2274         if (!s || !*s)
2275                 return 0;
2276         // testing
2277         //if (precachemode == 2)
2278         //      return 0;
2279         strlcpy(filename, s, sizeof(filename));
2280         for (i = 2;i < limit;i++)
2281         {
2282                 if (!sv.model_precache[i][0])
2283                 {
2284                         if (precachemode)
2285                         {
2286                                 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))
2287                                 {
2288                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2289                                         return 0;
2290                                 }
2291                                 if (precachemode == 1)
2292                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2293                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2294                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2295                                 if (sv.state != ss_loading)
2296                                 {
2297                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2298                                         MSG_WriteShort(&sv.reliable_datagram, i);
2299                                         MSG_WriteString(&sv.reliable_datagram, filename);
2300                                 }
2301                                 return i;
2302                         }
2303                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2304                         return 0;
2305                 }
2306                 if (!strcmp(sv.model_precache[i], filename))
2307                         return i;
2308         }
2309         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2310         return 0;
2311 }
2312
2313 /*
2314 ================
2315 SV_SoundIndex
2316
2317 ================
2318 */
2319 int SV_SoundIndex(const char *s, int precachemode)
2320 {
2321         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);
2322         char filename[MAX_QPATH];
2323         if (!s || !*s)
2324                 return 0;
2325         // testing
2326         //if (precachemode == 2)
2327         //      return 0;
2328         strlcpy(filename, s, sizeof(filename));
2329         for (i = 1;i < limit;i++)
2330         {
2331                 if (!sv.sound_precache[i][0])
2332                 {
2333                         if (precachemode)
2334                         {
2335                                 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))
2336                                 {
2337                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2338                                         return 0;
2339                                 }
2340                                 if (precachemode == 1)
2341                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2342                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2343                                 if (sv.state != ss_loading)
2344                                 {
2345                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2346                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2347                                         MSG_WriteString(&sv.reliable_datagram, filename);
2348                                 }
2349                                 return i;
2350                         }
2351                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2352                         return 0;
2353                 }
2354                 if (!strcmp(sv.sound_precache[i], filename))
2355                         return i;
2356         }
2357         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2358         return 0;
2359 }
2360
2361 /*
2362 ================
2363 SV_ParticleEffectIndex
2364
2365 ================
2366 */
2367 int SV_ParticleEffectIndex(const char *name)
2368 {
2369         int i, argc, linenumber, effectnameindex;
2370         fs_offset_t filesize;
2371         unsigned char *filedata;
2372         const char *text, *textstart, *textend;
2373         char argv[16][1024];
2374         if (!sv.particleeffectnamesloaded)
2375         {
2376                 sv.particleeffectnamesloaded = true;
2377                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2378                 for (i = 0;i < EFFECT_TOTAL;i++)
2379                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2380                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2381                 if (filedata)
2382                 {
2383                         textstart = (const char *)filedata;
2384                         textend = (const char *)filedata + filesize;
2385                         text = textstart;
2386                         for (linenumber = 1;;linenumber++)
2387                         {
2388                                 argc = 0;
2389                                 for (;;)
2390                                 {
2391                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2392                                                 break;
2393                                         if (argc < 16)
2394                                         {
2395                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2396                                                 argc++;
2397                                         }
2398                                 }
2399                                 if (com_token[0] == 0)
2400                                         break; // if the loop exited and it's not a \n, it's EOF
2401                                 if (argc < 1)
2402                                         continue;
2403                                 if (!strcmp(argv[0], "effect"))
2404                                 {
2405                                         if (argc == 2)
2406                                         {
2407                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2408                                                 {
2409                                                         if (sv.particleeffectname[effectnameindex][0])
2410                                                         {
2411                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2412                                                                         break;
2413                                                         }
2414                                                         else
2415                                                         {
2416                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2417                                                                 break;
2418                                                         }
2419                                                 }
2420                                                 // if we run out of names, abort
2421                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2422                                                 {
2423                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2424                                                         break;
2425                                                 }
2426                                         }
2427                                 }
2428                         }
2429                         Mem_Free(filedata);
2430                 }
2431         }
2432         // search for the name
2433         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2434                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2435                         return effectnameindex;
2436         // return 0 if we couldn't find it
2437         return 0;
2438 }
2439
2440 /*
2441 ================
2442 SV_CreateBaseline
2443
2444 ================
2445 */
2446 static void SV_CreateBaseline (void)
2447 {
2448         int i, entnum, large;
2449         prvm_edict_t *svent;
2450
2451         // LordHavoc: clear *all* states (note just active ones)
2452         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2453         {
2454                 // get the current server version
2455                 svent = PRVM_EDICT_NUM(entnum);
2456
2457                 // LordHavoc: always clear state values, whether the entity is in use or not
2458                 svent->priv.server->baseline = defaultstate;
2459
2460                 if (svent->priv.server->free)
2461                         continue;
2462                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2463                         continue;
2464
2465                 // create entity baseline
2466                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2467                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2468                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2469                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2470                 if (entnum > 0 && entnum <= svs.maxclients)
2471                 {
2472                         svent->priv.server->baseline.colormap = entnum;
2473                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2474                 }
2475                 else
2476                 {
2477                         svent->priv.server->baseline.colormap = 0;
2478                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2479                 }
2480
2481                 large = false;
2482                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2483                 {
2484                         large = true;
2485                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2486                                 large = false;
2487                 }
2488
2489                 // add to the message
2490                 if (large)
2491                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2492                 else
2493                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2494                 MSG_WriteShort (&sv.signon, entnum);
2495
2496                 if (large)
2497                 {
2498                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2499                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2500                 }
2501                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2502                 {
2503                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2504                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2505                 }
2506                 else
2507                 {
2508                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2509                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2510                 }
2511                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2512                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2513                 for (i=0 ; i<3 ; i++)
2514                 {
2515                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2516                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2517                 }
2518         }
2519 }
2520
2521
2522 /*
2523 ================
2524 SV_SaveSpawnparms
2525
2526 Grabs the current state of each client for saving across the
2527 transition to another level
2528 ================
2529 */
2530 void SV_SaveSpawnparms (void)
2531 {
2532         int             i, j;
2533
2534         svs.serverflags = (int)prog->globals.server->serverflags;
2535
2536         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2537         {
2538                 if (!host_client->active)
2539                         continue;
2540
2541         // call the progs to get default spawn parms for the new client
2542                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2543                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2544                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2545                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2546         }
2547 }
2548
2549 /*
2550 ================
2551 SV_SpawnServer
2552
2553 This is called at the start of each level
2554 ================
2555 */
2556
2557 void SV_SpawnServer (const char *server)
2558 {
2559         prvm_edict_t *ent;
2560         int i;
2561         char *entities;
2562         dp_model_t *worldmodel;
2563         char modelname[sizeof(sv.modelname)];
2564
2565         Con_DPrintf("SpawnServer: %s\n", server);
2566
2567         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2568
2569         if (!FS_FileExists(modelname))
2570         {
2571                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
2572                 return;
2573         }
2574
2575         if (cls.state != ca_dedicated)
2576         {
2577                 SCR_BeginLoadingPlaque();
2578                 S_StopAllSounds();
2579         }
2580
2581         if(sv.active)
2582         {
2583                 SV_VM_Begin();
2584                 if(prog->funcoffsets.SV_Shutdown)
2585                 {
2586                         func_t s = prog->funcoffsets.SV_Shutdown;
2587                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
2588                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
2589                 }
2590                 SV_VM_End();
2591         }
2592
2593         worldmodel = Mod_ForName(modelname, false, true, true);
2594         if (!worldmodel || !worldmodel->TraceBox)
2595         {
2596                 Con_Printf("Couldn't load map %s\n", modelname);
2597                 return;
2598         }
2599
2600         // let's not have any servers with no name
2601         if (hostname.string[0] == 0)
2602                 Cvar_Set ("hostname", "UNNAMED");
2603         scr_centertime_off = 0;
2604
2605         svs.changelevel_issued = false;         // now safe to issue another
2606
2607         // make the map a required file for clients
2608         Curl_ClearRequirements();
2609         Curl_RequireFile(modelname);
2610
2611 //
2612 // tell all connected clients that we are going to a new level
2613 //
2614         if (sv.active)
2615         {
2616                 client_t *client;
2617                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2618                 {
2619                         if (client->netconnection)
2620                         {
2621                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2622                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2623                         }
2624                 }
2625         }
2626         else
2627         {
2628                 // open server port
2629                 NetConn_OpenServerPorts(true);
2630         }
2631
2632 //
2633 // make cvars consistant
2634 //
2635         if (coop.integer)
2636                 Cvar_SetValue ("deathmatch", 0);
2637         // LordHavoc: it can be useful to have skills outside the range 0-3...
2638         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2639         //Cvar_SetValue ("skill", (float)current_skill);
2640         current_skill = (int)(skill.value + 0.5);
2641
2642 //
2643 // set up the new server
2644 //
2645         memset (&sv, 0, sizeof(sv));
2646         // if running a local client, make sure it doesn't try to access the last
2647         // level's data which is no longer valiud
2648         cls.signon = 0;
2649
2650         if(*sv_random_seed.string)
2651         {
2652                 srand(sv_random_seed.integer);
2653                 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);
2654         }
2655
2656         SV_VM_Setup();
2657
2658         sv.active = true;
2659
2660         strlcpy (sv.name, server, sizeof (sv.name));
2661
2662         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2663         if (sv.protocol == PROTOCOL_UNKNOWN)
2664         {
2665                 char buffer[1024];
2666                 Protocol_Names(buffer, sizeof(buffer));
2667                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2668                 sv.protocol = PROTOCOL_QUAKE;
2669         }
2670
2671         SV_VM_Begin();
2672
2673 // load progs to get entity field count
2674         //PR_LoadProgs ( sv_progs.string );
2675
2676         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2677         sv.datagram.cursize = 0;
2678         sv.datagram.data = sv.datagram_buf;
2679
2680         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2681         sv.reliable_datagram.cursize = 0;
2682         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2683
2684         sv.signon.maxsize = sizeof(sv.signon_buf);
2685         sv.signon.cursize = 0;
2686         sv.signon.data = sv.signon_buf;
2687
2688 // leave slots at start for clients only
2689         //prog->num_edicts = svs.maxclients+1;
2690
2691         sv.state = ss_loading;
2692         prog->allowworldwrites = true;
2693         sv.paused = false;
2694
2695         prog->globals.server->time = sv.time = 1.0;
2696
2697         Mod_ClearUsed();
2698         worldmodel->used = true;
2699
2700         strlcpy (sv.name, server, sizeof (sv.name));
2701         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2702         sv.worldmodel = worldmodel;
2703         sv.models[1] = sv.worldmodel;
2704
2705 //
2706 // clear world interaction links
2707 //
2708         World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
2709
2710         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2711
2712         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2713         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2714         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2715         {
2716                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2717                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2718         }
2719
2720 //
2721 // load the rest of the entities
2722 //
2723         // AK possible hack since num_edicts is still 0
2724         ent = PRVM_EDICT_NUM(0);
2725         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2726         ent->priv.server->free = false;
2727         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2728         ent->fields.server->modelindex = 1;             // world model
2729         ent->fields.server->solid = SOLID_BSP;
2730         ent->fields.server->movetype = MOVETYPE_PUSH;
2731         VectorCopy(sv.world.mins, ent->fields.server->mins);
2732         VectorCopy(sv.world.maxs, ent->fields.server->maxs);
2733         VectorCopy(sv.world.mins, ent->fields.server->absmin);
2734         VectorCopy(sv.world.maxs, ent->fields.server->absmax);
2735
2736         if (coop.value)
2737                 prog->globals.server->coop = coop.integer;
2738         else
2739                 prog->globals.server->deathmatch = deathmatch.integer;
2740
2741         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2742
2743 // serverflags are for cross level information (sigils)
2744         prog->globals.server->serverflags = svs.serverflags;
2745
2746         // we need to reset the spawned flag on all connected clients here so that
2747         // their thinks don't run during startup (before PutClientInServer)
2748         // we also need to set up the client entities now
2749         // and we need to set the ->edict pointers to point into the progs edicts
2750         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2751         {
2752                 host_client->spawned = false;
2753                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2754                 PRVM_ED_ClearEdict(host_client->edict);
2755         }
2756
2757         // load replacement entity file if found
2758         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2759         {
2760                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2761                 PRVM_ED_LoadFromFile (entities);
2762                 Mem_Free(entities);
2763         }
2764         else
2765                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2766
2767
2768         // LordHavoc: clear world angles (to fix e3m3.bsp)
2769         VectorClear(prog->edicts->fields.server->angles);
2770
2771 // all setup is completed, any further precache statements are errors
2772         sv.state = ss_active;
2773         prog->allowworldwrites = false;
2774
2775 // run two frames to allow everything to settle
2776         for (i = 0;i < 2;i++)
2777         {
2778                 sv.frametime = 0.1;
2779                 SV_Physics ();
2780         }
2781
2782         Mod_PurgeUnused();
2783
2784 // create a baseline for more efficient communications
2785         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)
2786                 SV_CreateBaseline ();
2787
2788 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2789         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2790         {
2791                 host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
2792                 if (!host_client->active)
2793                         continue;
2794                 if (host_client->netconnection)
2795                         SV_SendServerinfo(host_client);
2796                 else
2797                 {
2798                         int j;
2799                         // if client is a botclient coming from a level change, we need to
2800                         // set up client info that normally requires networking
2801
2802                         // copy spawn parms out of the client_t
2803                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2804                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2805
2806                         // call the spawn function
2807                         host_client->clientconnectcalled = true;
2808                         prog->globals.server->time = sv.time;
2809                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2810                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2811                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2812                         host_client->spawned = true;
2813                 }
2814         }
2815
2816         Con_DPrint("Server spawned.\n");
2817         NetConn_Heartbeat (2);
2818
2819         SV_VM_End();
2820 }
2821
2822 /////////////////////////////////////////////////////
2823 // SV VM stuff
2824
2825 static void SV_VM_CB_BeginIncreaseEdicts(void)
2826 {
2827         // links don't survive the transition, so unlink everything
2828         World_UnlinkAll(&sv.world);
2829 }
2830
2831 static void SV_VM_CB_EndIncreaseEdicts(void)
2832 {
2833         int i;
2834         prvm_edict_t *ent;
2835
2836         // link every entity except world
2837         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2838                 if (!ent->priv.server->free)
2839                         SV_LinkEdict(ent, false);
2840 }
2841
2842 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2843 {
2844         // LordHavoc: for consistency set these here
2845         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2846
2847         e->priv.server->move = false; // don't move on first frame
2848
2849         if (num >= 0 && num < svs.maxclients)
2850         {
2851                 prvm_eval_t *val;
2852                 // set colormap and team on newly created player entity
2853                 e->fields.server->colormap = num + 1;
2854                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
2855                 // set netname/clientcolors back to client values so that
2856                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
2857                 // reset them
2858                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
2859                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
2860                         val->_float = svs.clients[num].colors;
2861                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
2862                 if( prog->fieldoffsets.playermodel >= 0 )
2863                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
2864                 if( prog->fieldoffsets.playerskin >= 0 )
2865                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
2866                 // Assign netaddress (IP Address, etc)
2867                 if(prog->fieldoffsets.netaddress >= 0)
2868                 { // Valid Field; Process
2869                         if(svs.clients[num].netconnection != NULL)
2870                         {// Valid Address; Assign
2871                                 // Acquire Readable Address
2872                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
2873                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
2874                         }
2875                         else
2876                                 // Invalid / Bot
2877                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
2878                 }
2879         }
2880 }
2881
2882 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
2883 {
2884         int i;
2885         int e;
2886
2887         World_UnlinkEdict(ed);          // unlink from world bsp
2888
2889         ed->fields.server->model = 0;
2890         ed->fields.server->takedamage = 0;
2891         ed->fields.server->modelindex = 0;
2892         ed->fields.server->colormap = 0;
2893         ed->fields.server->skin = 0;
2894         ed->fields.server->frame = 0;
2895         VectorClear(ed->fields.server->origin);
2896         VectorClear(ed->fields.server->angles);
2897         ed->fields.server->nextthink = -1;
2898         ed->fields.server->solid = 0;
2899
2900         // make sure csqc networking is aware of the removed entity
2901         e = PRVM_NUM_FOR_EDICT(ed);
2902         sv.csqcentityversion[e] = 0;
2903         for (i = 0;i < svs.maxclients;i++)
2904         {
2905                 if (svs.clients[i].csqcentityscope[e])
2906                         svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
2907                 svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
2908         }
2909 }
2910
2911 static void SV_VM_CB_CountEdicts(void)
2912 {
2913         int             i;
2914         prvm_edict_t    *ent;
2915         int             active, models, solid, step;
2916
2917         active = models = solid = step = 0;
2918         for (i=0 ; i<prog->num_edicts ; i++)
2919         {
2920                 ent = PRVM_EDICT_NUM(i);
2921                 if (ent->priv.server->free)
2922                         continue;
2923                 active++;
2924                 if (ent->fields.server->solid)
2925                         solid++;
2926                 if (ent->fields.server->model)
2927                         models++;
2928                 if (ent->fields.server->movetype == MOVETYPE_STEP)
2929                         step++;
2930         }
2931
2932         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
2933         Con_Printf("active    :%3i\n", active);
2934         Con_Printf("view      :%3i\n", models);
2935         Con_Printf("touch     :%3i\n", solid);
2936         Con_Printf("step      :%3i\n", step);
2937 }
2938
2939 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
2940 {
2941         // remove things from different skill levels or deathmatch
2942         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
2943         {
2944                 if (deathmatch.integer)
2945                 {
2946                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
2947                         {
2948                                 return false;
2949                         }
2950                 }
2951                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
2952                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
2953                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
2954                 {
2955                         return false;
2956                 }
2957         }
2958         return true;
2959 }
2960
2961 static void SV_VM_Setup(void)
2962 {
2963         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
2964         size_t csprogsdatasize;
2965         PRVM_Begin;
2966         PRVM_InitProg( PRVM_SERVERPROG );
2967
2968         // allocate the mempools
2969         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
2970         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
2971         prog->builtins = vm_sv_builtins;
2972         prog->numbuiltins = vm_sv_numbuiltins;
2973         prog->headercrc = PROGHEADER_CRC;
2974         prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
2975         prog->max_edicts = 512;
2976         if (sv.protocol == PROTOCOL_QUAKE)
2977                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
2978         else if (sv.protocol == PROTOCOL_QUAKEDP)
2979                 prog->limit_edicts = 2048; // guessing
2980         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2981                 prog->limit_edicts = 2048; // guessing!
2982         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2983                 prog->limit_edicts = 4096; // guessing!
2984         else
2985                 prog->limit_edicts = MAX_EDICTS;
2986         prog->reserved_edicts = svs.maxclients;
2987         prog->edictprivate_size = sizeof(edict_engineprivate_t);
2988         prog->name = "server";
2989         prog->extensionstring = vm_sv_extensions;
2990         prog->loadintoworld = true;
2991
2992         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
2993         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
2994         prog->init_edict = SV_VM_CB_InitEdict;
2995         prog->free_edict = SV_VM_CB_FreeEdict;
2996         prog->count_edicts = SV_VM_CB_CountEdicts;
2997         prog->load_edict = SV_VM_CB_LoadEdict;
2998         prog->init_cmd = VM_SV_Cmd_Init;
2999         prog->reset_cmd = VM_SV_Cmd_Reset;
3000         prog->error_cmd = Host_Error;
3001
3002         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
3003         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
3004
3005         // some mods compiled with scrambling compilers lack certain critical
3006         // global names and field names such as "self" and "time" and "nextthink"
3007         // so we have to set these offsets manually, matching the entvars_t
3008         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
3009         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
3010         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
3011         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
3012         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
3013         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
3014         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
3015         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
3016         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
3017         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
3018         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
3019         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
3020         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
3021         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
3022         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
3023         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
3024         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
3025         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
3026         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
3027         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
3028         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
3029         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
3030         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
3031         // OP_STATE is always supported on server (due to entvars_t)
3032         prog->flag |= PRVM_OP_STATE;
3033
3034         VM_CustomStats_Clear();//[515]: csqc
3035
3036         PRVM_End;
3037
3038         // 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
3039         sv.csqc_progname[0] = 0;
3040         sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
3041         sv.csqc_progsize = csprogsdatasize;
3042         if (sv.csqc_progsize > 0)
3043         {
3044                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
3045                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
3046         }
3047 }
3048
3049 void SV_VM_Begin(void)
3050 {
3051         PRVM_Begin;
3052         PRVM_SetProg( PRVM_SERVERPROG );
3053
3054         prog->globals.server->time = (float) sv.time;
3055 }
3056
3057 void SV_VM_End(void)
3058 {
3059         PRVM_End;
3060 }