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
  35 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
  36 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
  37 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
  38 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
  39 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
  40 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
  41 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
  42 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
  43 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
  44 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
  45 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
  46
  47 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
  48 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
  49 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
  50 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
  51 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
  52 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
  53 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
  54 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
  55 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
  56 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
  57 cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "64", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
  58 cvar_t sv_checkforpacketsduringsleep = {0, "sv_checkforpacketsduringsleep", "0", "uses select() function to wait between frames which can be interrupted by packets being received, instead of Sleep()/usleep()/SDL_Sleep() functions which do not check for packets"};
  59 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
  60 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
  61 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
  62 cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "4", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
  63 cvar_t sv_cullentities_nevercullbmodels = {0, "sv_cullentities_nevercullbmodels", "0", "if enabled the clients are always notified of moving doors and lifts and other submodels of world (warning: eats a lot of network bandwidth on some levels!)"};
  64 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
  65 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
  66 cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "0", "somewhat slow but very tight culling of hidden entities, minimizes network traffic and makes wallhack cheats useless"};
  67 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  68 cvar_t sv_cullentities_trace_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"};
  69 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  70 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
  71 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
  72 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"};
  73 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"};
  74 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
  75 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
  76 cvar_t sv_edgefriction = {0, "edgefriction", "1", "how much you slow down when nearing a ledge you might fall off, multiplier of sv_friction (Quake used 2, QuakeWorld used 1 due to a bug in physics code)"};
  77 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)"};
  78 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)"};
  79 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
  80 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
  81 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"};
  82 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"};
  83 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)"};
  84 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"};
  85 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)"};
  86 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"};
  87 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
  88 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"};
  89 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"};
  90 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"};
  91 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)"};
  92 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)"};
  93 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"};
  94 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"};
  95 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
  96 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
  97 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
  98 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
  99 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)"};
 100 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
 101 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
 102 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
 103 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
 104 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
 105 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
 106 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
 107 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
 108 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"};
 109 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)"};
 110 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)"};
 111 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)"};
 112 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
 113 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
 114 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
 115 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"};
 116 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"};
 117 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"};
 118 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"};
 119 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
 120
 121 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 122 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 123 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 124 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 125 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 126 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
 127 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
 128 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
 129 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
 130 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)"};
 131
 132 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
 133 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
 134 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
 135 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
 136 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
 137 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
 138 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
 139 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
 140 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
 141 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
 142 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
 143 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
 144 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
 145 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
 146 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
 147 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
 148 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
 149 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
 150 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
 151 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
 152 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 153
 154 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)"};
 155 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" };
 156
 157
 158 server_t sv;
 159 server_static_t svs;
 160
 161 mempool_t *sv_mempool = NULL;
 162
 163 extern cvar_t slowmo;
 164 extern float            scr_centertime_off;
 165
 166 // MUST match effectnameindex_t in client.h
 167 static const char *standardeffectnames[EFFECT_TOTAL] =
 168 {
 169         "",
 170         "TE_GUNSHOT",
 171         "TE_GUNSHOTQUAD",
 172         "TE_SPIKE",
 173         "TE_SPIKEQUAD",
 174         "TE_SUPERSPIKE",
 175         "TE_SUPERSPIKEQUAD",
 176         "TE_WIZSPIKE",
 177         "TE_KNIGHTSPIKE",
 178         "TE_EXPLOSION",
 179         "TE_EXPLOSIONQUAD",
 180         "TE_TAREXPLOSION",
 181         "TE_TELEPORT",
 182         "TE_LAVASPLASH",
 183         "TE_SMALLFLASH",
 184         "TE_FLAMEJET",
 185         "EF_FLAME",
 186         "TE_BLOOD",
 187         "TE_SPARK",
 188         "TE_PLASMABURN",
 189         "TE_TEI_G3",
 190         "TE_TEI_SMOKE",
 191         "TE_TEI_BIGEXPLOSION",
 192         "TE_TEI_PLASMAHIT",
 193         "EF_STARDUST",
 194         "TR_ROCKET",
 195         "TR_GRENADE",
 196         "TR_BLOOD",
 197         "TR_WIZSPIKE",
 198         "TR_SLIGHTBLOOD",
 199         "TR_KNIGHTSPIKE",
 200         "TR_VORESPIKE",
 201         "TR_NEHAHRASMOKE",
 202         "TR_NEXUIZPLASMA",
 203         "TR_GLOWTRAIL",
 204         "SVC_PARTICLE"
 205 };
 206
 207 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
 208
 209 prvm_required_field_t reqfields[] =
 210 {
 211         {ev_entity, "cursor_trace_ent"},
 212         {ev_entity, "drawonlytoclient"},
 213         {ev_entity, "exteriormodeltoclient"},
 214         {ev_entity, "nodrawtoclient"},
 215         {ev_entity, "tag_entity"},
 216         {ev_entity, "viewmodelforclient"},
 217         {ev_float, "SendFlags"},
 218         {ev_float, "Version"},
 219         {ev_float, "alpha"},
 220         {ev_float, "ammo_cells1"},
 221         {ev_float, "ammo_lava_nails"},
 222         {ev_float, "ammo_multi_rockets"},
 223         {ev_float, "ammo_nails1"},
 224         {ev_float, "ammo_plasma"},
 225         {ev_float, "ammo_rockets1"},
 226         {ev_float, "ammo_shells1"},
 227         {ev_float, "button3"},
 228         {ev_float, "button4"},
 229         {ev_float, "button5"},
 230         {ev_float, "button6"},
 231         {ev_float, "button7"},
 232         {ev_float, "button8"},
 233         {ev_float, "button9"},
 234         {ev_float, "button10"},
 235         {ev_float, "button11"},
 236         {ev_float, "button12"},
 237         {ev_float, "button13"},
 238         {ev_float, "button14"},
 239         {ev_float, "button15"},
 240         {ev_float, "button16"},
 241         {ev_float, "buttonchat"},
 242         {ev_float, "buttonuse"},
 243         {ev_float, "clientcolors"},
 244         {ev_float, "cursor_active"},
 245         {ev_float, "disableclientprediction"},
 246         {ev_float, "fullbright"},
 247         {ev_float, "glow_color"},
 248         {ev_float, "glow_size"},
 249         {ev_float, "glow_trail"},
 250         {ev_float, "gravity"},
 251         {ev_float, "idealpitch"},
 252         {ev_float, "items2"},
 253         {ev_float, "light_lev"},
 254         {ev_float, "modelflags"},
 255         {ev_float, "pflags"},
 256         {ev_float, "ping"},
 257         {ev_float, "pitch_speed"},
 258         {ev_float, "pmodel"},
 259         {ev_float, "renderamt"}, // HalfLife support
 260         {ev_float, "rendermode"}, // HalfLife support
 261         {ev_float, "scale"},
 262         {ev_float, "style"},
 263         {ev_float, "tag_index"},
 264         {ev_float, "viewzoom"},
 265         {ev_function, "SendEntity"},
 266         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
 267         {ev_function, "customizeentityforclient"},
 268         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
 269         {ev_string, "netaddress"},
 270         {ev_string, "playermodel"},
 271         {ev_string, "playerskin"},
 272         {ev_vector, "color"},
 273         {ev_vector, "colormod"},
 274         {ev_vector, "cursor_screen"},
 275         {ev_vector, "cursor_trace_endpos"},
 276         {ev_vector, "cursor_trace_start"},
 277         {ev_vector, "movement"},
 278         {ev_vector, "punchvector"},
 279 };
 280
 281
 282
 283 //============================================================================
 284
 285 void SV_AreaStats_f(void)
 286 {
 287         World_PrintAreaStats(&sv.world, "server");
 288 }
 289
 290 /*
 291 ===============
 292 SV_Init
 293 ===============
 294 */
 295 void SV_Init (void)
 296 {
 297         // init the csqc progs cvars, since they are updated/used by the server code
 298         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
 299         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
 300         extern cvar_t csqc_progcrc;
 301         extern cvar_t csqc_progsize;
 302         Cvar_RegisterVariable (&csqc_progname);
 303         Cvar_RegisterVariable (&csqc_progcrc);
 304         Cvar_RegisterVariable (&csqc_progsize);
 305
 306         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
 307         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
 308         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
 309         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
 310
 311         Cvar_RegisterVariable (&coop);
 312         Cvar_RegisterVariable (&deathmatch);
 313         Cvar_RegisterVariable (&fraglimit);
 314         Cvar_RegisterVariable (&gamecfg);
 315         Cvar_RegisterVariable (&noexit);
 316         Cvar_RegisterVariable (&nomonsters);
 317         Cvar_RegisterVariable (&pausable);
 318         Cvar_RegisterVariable (&pr_checkextension);
 319         Cvar_RegisterVariable (&samelevel);
 320         Cvar_RegisterVariable (&skill);
 321         Cvar_RegisterVariable (&slowmo);
 322         Cvar_RegisterVariable (&sv_accelerate);
 323         Cvar_RegisterVariable (&sv_aim);
 324         Cvar_RegisterVariable (&sv_airaccel_qw);
 325         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
 326         Cvar_RegisterVariable (&sv_airaccelerate);
 327         Cvar_RegisterVariable (&sv_allowdownloads);
 328         Cvar_RegisterVariable (&sv_allowdownloads_archive);
 329         Cvar_RegisterVariable (&sv_allowdownloads_config);
 330         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
 331         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
 332         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
 333         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
 334         Cvar_RegisterVariable (&sv_clmovement_enable);
 335         Cvar_RegisterVariable (&sv_clmovement_minping);
 336         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
 337         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
 338         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
 339         Cvar_RegisterVariable (&sv_cullentities_pvs);
 340         Cvar_RegisterVariable (&sv_cullentities_stats);
 341         Cvar_RegisterVariable (&sv_cullentities_trace);
 342         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
 343         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
 344         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
 345         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
 346         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
 347         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
 348         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
 349         Cvar_RegisterVariable (&sv_debugmove);
 350         Cvar_RegisterVariable (&sv_echobprint);
 351         Cvar_RegisterVariable (&sv_edgefriction);
 352         Cvar_RegisterVariable (&sv_entpatch);
 353         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
 354         Cvar_RegisterVariable (&sv_freezenonclients);
 355         Cvar_RegisterVariable (&sv_friction);
 356         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
 357         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
 358         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
 359         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
 360         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
 361         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
 362         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
 363         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
 364         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
 365         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
 366         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
 367         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
 368         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
 369         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
 370         Cvar_RegisterVariable (&sv_gravity);
 371         Cvar_RegisterVariable (&sv_idealpitchscale);
 372         Cvar_RegisterVariable (&sv_jumpstep);
 373         Cvar_RegisterVariable (&sv_jumpvelocity);
 374         Cvar_RegisterVariable (&sv_maxairspeed);
 375         Cvar_RegisterVariable (&sv_maxrate);
 376         Cvar_RegisterVariable (&sv_maxspeed);
 377         Cvar_RegisterVariable (&sv_maxvelocity);
 378         Cvar_RegisterVariable (&sv_newflymove);
 379         Cvar_RegisterVariable (&sv_nostep);
 380         Cvar_RegisterVariable (&sv_playerphysicsqc);
 381         Cvar_RegisterVariable (&sv_progs);
 382         Cvar_RegisterVariable (&sv_protocolname);
 383         Cvar_RegisterVariable (&sv_random_seed);
 384         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
 385         Cvar_RegisterVariable (&sv_sound_land);
 386         Cvar_RegisterVariable (&sv_sound_watersplash);
 387         Cvar_RegisterVariable (&sv_stepheight);
 388         Cvar_RegisterVariable (&sv_stopspeed);
 389         Cvar_RegisterVariable (&sv_wallfriction);
 390         Cvar_RegisterVariable (&sv_wateraccelerate);
 391         Cvar_RegisterVariable (&sv_waterfriction);
 392         Cvar_RegisterVariable (&sys_ticrate);
 393         Cvar_RegisterVariable (&teamplay);
 394         Cvar_RegisterVariable (&timelimit);
 395
 396         Cvar_RegisterVariable (&saved1);
 397         Cvar_RegisterVariable (&saved2);
 398         Cvar_RegisterVariable (&saved3);
 399         Cvar_RegisterVariable (&saved4);
 400         Cvar_RegisterVariable (&savedgamecfg);
 401         Cvar_RegisterVariable (&scratch1);
 402         Cvar_RegisterVariable (&scratch2);
 403         Cvar_RegisterVariable (&scratch3);
 404         Cvar_RegisterVariable (&scratch4);
 405         Cvar_RegisterVariable (&temp1);
 406
 407         // LordHavoc: Nehahra uses these to pass data around cutscene demos
 408         if (gamemode == GAME_NEHAHRA)
 409         {
 410                 Cvar_RegisterVariable (&nehx00);
 411                 Cvar_RegisterVariable (&nehx01);
 412                 Cvar_RegisterVariable (&nehx02);
 413                 Cvar_RegisterVariable (&nehx03);
 414                 Cvar_RegisterVariable (&nehx04);
 415                 Cvar_RegisterVariable (&nehx05);
 416                 Cvar_RegisterVariable (&nehx06);
 417                 Cvar_RegisterVariable (&nehx07);
 418                 Cvar_RegisterVariable (&nehx08);
 419                 Cvar_RegisterVariable (&nehx09);
 420                 Cvar_RegisterVariable (&nehx10);
 421                 Cvar_RegisterVariable (&nehx11);
 422                 Cvar_RegisterVariable (&nehx12);
 423                 Cvar_RegisterVariable (&nehx13);
 424                 Cvar_RegisterVariable (&nehx14);
 425                 Cvar_RegisterVariable (&nehx15);
 426                 Cvar_RegisterVariable (&nehx16);
 427                 Cvar_RegisterVariable (&nehx17);
 428                 Cvar_RegisterVariable (&nehx18);
 429                 Cvar_RegisterVariable (&nehx19);
 430         }
 431         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
 432
 433         Cvar_RegisterVariable (&sv_autodemo_perclient);
 434         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
 435
 436         // any special defaults for gamemodes go here
 437         if (gamemode == GAME_HIPNOTIC)
 438         {
 439                 // 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.
 440                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
 441                 // 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
 442                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
 443         }
 444         if (gamemode == GAME_ROGUE)
 445         {
 446                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 447                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
 448         }
 449
 450         sv_mempool = Mem_AllocPool("server", 0, NULL);
 451 }
 452
 453 static void SV_SaveEntFile_f(void)
 454 {
 455         char basename[MAX_QPATH];
 456         if (!sv.active || !sv.worldmodel)
 457         {
 458                 Con_Print("Not running a server\n");
 459                 return;
 460         }
 461         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
 462         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
 463 }
 464
 465
 466 /*
 467 =============================================================================
 468
 469 EVENT MESSAGES
 470
 471 =============================================================================
 472 */
 473
 474 /*
 475 ==================
 476 SV_StartParticle
 477
 478 Make sure the event gets sent to all clients
 479 ==================
 480 */
 481 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
 482 {
 483         int i;
 484
 485         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
 486                 return;
 487         MSG_WriteByte (&sv.datagram, svc_particle);
 488         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 489         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 490         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 491         for (i=0 ; i<3 ; i++)
 492                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
 493         MSG_WriteByte (&sv.datagram, count);
 494         MSG_WriteByte (&sv.datagram, color);
 495         SV_FlushBroadcastMessages();
 496 }
 497
 498 /*
 499 ==================
 500 SV_StartEffect
 501
 502 Make sure the event gets sent to all clients
 503 ==================
 504 */
 505 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 506 {
 507         if (modelindex >= 256 || startframe >= 256)
 508         {
 509                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 510                         return;
 511                 MSG_WriteByte (&sv.datagram, svc_effect2);
 512                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 513                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 514                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 515                 MSG_WriteShort (&sv.datagram, modelindex);
 516                 MSG_WriteShort (&sv.datagram, startframe);
 517                 MSG_WriteByte (&sv.datagram, framecount);
 518                 MSG_WriteByte (&sv.datagram, framerate);
 519         }
 520         else
 521         {
 522                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 523                         return;
 524                 MSG_WriteByte (&sv.datagram, svc_effect);
 525                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 526                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 527                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 528                 MSG_WriteByte (&sv.datagram, modelindex);
 529                 MSG_WriteByte (&sv.datagram, startframe);
 530                 MSG_WriteByte (&sv.datagram, framecount);
 531                 MSG_WriteByte (&sv.datagram, framerate);
 532         }
 533         SV_FlushBroadcastMessages();
 534 }
 535
 536 /*
 537 ==================
 538 SV_StartSound
 539
 540 Each entity can have eight independant sound sources, like voice,
 541 weapon, feet, etc.
 542
 543 Channel 0 is an auto-allocate channel, the others override anything
 544 already running on that entity/channel pair.
 545
 546 An attenuation of 0 will play full volume everywhere in the level.
 547 Larger attenuations will drop off.  (max 4 attenuation)
 548
 549 ==================
 550 */
 551 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
 552 {
 553         int sound_num, field_mask, i, ent;
 554
 555         if (volume < 0 || volume > 255)
 556         {
 557                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
 558                 return;
 559         }
 560
 561         if (attenuation < 0 || attenuation > 4)
 562         {
 563                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
 564                 return;
 565         }
 566
 567         if (channel < 0 || channel > 7)
 568         {
 569                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
 570                 return;
 571         }
 572
 573         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 574                 return;
 575
 576 // find precache number for sound
 577         sound_num = SV_SoundIndex(sample, 1);
 578         if (!sound_num)
 579                 return;
 580
 581         ent = PRVM_NUM_FOR_EDICT(entity);
 582
 583         field_mask = 0;
 584         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 585                 field_mask |= SND_VOLUME;
 586         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 587                 field_mask |= SND_ATTENUATION;
 588         if (ent >= 8192)
 589                 field_mask |= SND_LARGEENTITY;
 590         if (sound_num >= 256 || channel >= 8)
 591                 field_mask |= SND_LARGESOUND;
 592
 593 // directed messages go only to the entity they are targeted on
 594         MSG_WriteByte (&sv.datagram, svc_sound);
 595         MSG_WriteByte (&sv.datagram, field_mask);
 596         if (field_mask & SND_VOLUME)
 597                 MSG_WriteByte (&sv.datagram, volume);
 598         if (field_mask & SND_ATTENUATION)
 599                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 600         if (field_mask & SND_LARGEENTITY)
 601         {
 602                 MSG_WriteShort (&sv.datagram, ent);
 603                 MSG_WriteByte (&sv.datagram, channel);
 604         }
 605         else
 606                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 607         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
 608                 MSG_WriteShort (&sv.datagram, sound_num);
 609         else
 610                 MSG_WriteByte (&sv.datagram, sound_num);
 611         for (i = 0;i < 3;i++)
 612                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
 613         SV_FlushBroadcastMessages();
 614 }
 615
 616 /*
 617 ==================
 618 SV_StartPointSound
 619
 620 Nearly the same logic as SV_StartSound, except an origin
 621 instead of an entity is provided and channel is omitted.
 622
 623 The entity sent to the client is 0 (world) and the channel
 624 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
 625 function, therefore the check for it is omitted.
 626
 627 ==================
 628 */
 629 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
 630 {
 631         int sound_num, field_mask, i;
 632
 633         if (volume < 0 || volume > 255)
 634         {
 635                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
 636                 return;
 637         }
 638
 639         if (attenuation < 0 || attenuation > 4)
 640         {
 641                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
 642                 return;
 643         }
 644
 645         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 646                 return;
 647
 648         // find precache number for sound
 649         sound_num = SV_SoundIndex(sample, 1);
 650         if (!sound_num)
 651                 return;
 652
 653         field_mask = 0;
 654         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 655                 field_mask |= SND_VOLUME;
 656         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 657                 field_mask |= SND_ATTENUATION;
 658         if (sound_num >= 256)
 659                 field_mask |= SND_LARGESOUND;
 660
 661 // directed messages go only to the entity they are targeted on
 662         MSG_WriteByte (&sv.datagram, svc_sound);
 663         MSG_WriteByte (&sv.datagram, field_mask);
 664         if (field_mask & SND_VOLUME)
 665                 MSG_WriteByte (&sv.datagram, volume);
 666         if (field_mask & SND_ATTENUATION)
 667                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 668         // Always write entnum 0 for the world entity
 669         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
 670         if (field_mask & SND_LARGESOUND)
 671                 MSG_WriteShort (&sv.datagram, sound_num);
 672         else
 673                 MSG_WriteByte (&sv.datagram, sound_num);
 674         for (i = 0;i < 3;i++)
 675                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
 676         SV_FlushBroadcastMessages();
 677 }
 678
 679 /*
 680 ==============================================================================
 681
 682 CLIENT SPAWNING
 683
 684 ==============================================================================
 685 */
 686
 687 /*
 688 ================
 689 SV_SendServerinfo
 690
 691 Sends the first message from the server to a connected client.
 692 This will be sent on the initial connection and upon each server load.
 693 ================
 694 */
 695 void SV_SendServerinfo (client_t *client)
 696 {
 697         int i;
 698         char message[128];
 699
 700         // we know that this client has a netconnection and thus is not a bot
 701
 702         // edicts get reallocated on level changes, so we need to update it here
 703         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
 704
 705         // clear cached stuff that depends on the level
 706         client->weaponmodel[0] = 0;
 707         client->weaponmodelindex = 0;
 708
 709         // LordHavoc: clear entityframe tracking
 710         client->latestframenum = 0;
 711
 712         // initialize the movetime, so a speedhack can't make use of the time before this client joined
 713         client->cmd.time = sv.time;
 714
 715         if (client->entitydatabase)
 716                 EntityFrame_FreeDatabase(client->entitydatabase);
 717         if (client->entitydatabase4)
 718                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 719         if (client->entitydatabase5)
 720                 EntityFrame5_FreeDatabase(client->entitydatabase5);
 721
 722         memset(client->stats, 0, sizeof(client->stats));
 723         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
 724
 725         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)
 726         {
 727                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
 728                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
 729                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
 730                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
 731                 else
 732                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
 733         }
 734
 735         // reset csqc entity versions
 736         for (i = 0;i < prog->max_edicts;i++)
 737         {
 738                 client->csqcentityscope[i] = 0;
 739                 client->csqcentitysendflags[i] = 0xFFFFFF;
 740                 client->csqcentityglobalhistory[i] = 0;
 741         }
 742         for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
 743         {
 744                 client->csqcentityframehistory[i].num = 0;
 745                 client->csqcentityframehistory[i].framenum = -1;
 746         }
 747         client->csqcnumedicts = 0;
 748         client->csqcentityframehistory_next = 0;
 749
 750         SZ_Clear (&client->netconnection->message);
 751         MSG_WriteByte (&client->netconnection->message, svc_print);
 752         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
 753         MSG_WriteString (&client->netconnection->message,message);
 754
 755         SV_StopDemoRecording(client); // to split up demos into different files
 756         if(sv_autodemo_perclient.integer && client->netconnection)
 757         {
 758                 char demofile[MAX_OSPATH];
 759                 char levelname[MAX_QPATH];
 760                 char ipaddress[MAX_QPATH];
 761                 size_t i;
 762
 763                 // start a new demo file
 764                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
 765                 if (strrchr(levelname, '.'))
 766                         *(strrchr(levelname, '.')) = 0;
 767
 768                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
 769                 for(i = 0; ipaddress[i]; ++i)
 770                         if(!isalnum(ipaddress[i]))
 771                                 ipaddress[i] = '-';
 772                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
 773
 774                 SV_StartDemoRecording(client, demofile, -1);
 775         }
 776
 777         //[515]: init csprogs according to version of svprogs, check the crc, etc.
 778         if (sv.csqc_progname[0])
 779         {
 780                 prvm_eval_t *val;
 781                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
 782                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 783                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
 784                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 785                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
 786                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 787                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
 788
 789                 if(client->sv_demo_file != NULL)
 790                 {
 791                         void *csqcbuf;
 792                         fs_offset_t csqclen;
 793                         int csqccrc;
 794                         int i;
 795                         char buf[NET_MAXMESSAGE];
 796                         sizebuf_t sb;
 797
 798                         csqcbuf = FS_LoadFile(sv.csqc_progname, tempmempool, true, &csqclen);
 799                         if(csqcbuf)
 800                         {
 801                                 csqccrc = CRC_Block(csqcbuf, csqclen);
 802                                 sb.data = (void *) buf;
 803                                 sb.maxsize = sizeof(buf);
 804                                 i = 0;
 805                                 while(MakeDownloadPacket(sv.csqc_progname, csqcbuf, csqclen, csqccrc, i++, &sb, sv.protocol))
 806                                         SV_WriteDemoMessage(client, &sb, false);
 807                                 Mem_Free(csqcbuf);
 808                         }
 809                 }
 810
 811                 //[515]: init stufftext string (it is sent before svc_serverinfo)
 812                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
 813                 if (val)
 814                 {
 815                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 816                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
 817                 }
 818         }
 819
 820         if (sv_allowdownloads.integer)
 821         {
 822                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 823                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1\n");
 824         }
 825
 826         // send at this time so it's guaranteed to get executed at the right time
 827         {
 828                 client_t *save;
 829                 save = host_client;
 830                 host_client = client;
 831                 Curl_SendRequirements();
 832                 host_client = save;
 833         }
 834
 835         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
 836         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
 837         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
 838
 839         if (!coop.integer && deathmatch.integer)
 840                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
 841         else
 842                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
 843
 844         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
 845
 846         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
 847                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
 848         MSG_WriteByte (&client->netconnection->message, 0);
 849
 850         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
 851                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
 852         MSG_WriteByte (&client->netconnection->message, 0);
 853
 854 // send music
 855         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
 856         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 857         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 858
 859 // set view
 860 // store this in clientcamera, too
 861         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
 862         MSG_WriteByte (&client->netconnection->message, svc_setview);
 863         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
 864
 865         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
 866         MSG_WriteByte (&client->netconnection->message, 1);
 867
 868         client->spawned = false;                // need prespawn, spawn, etc
 869         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
 870
 871         // clear movement info until client enters the new level properly
 872         memset(&client->cmd, 0, sizeof(client->cmd));
 873         client->movesequence = 0;
 874 #ifdef NUM_PING_TIMES
 875         for (i = 0;i < NUM_PING_TIMES;i++)
 876                 client->ping_times[i] = 0;
 877         client->num_pings = 0;
 878 #endif
 879         client->ping = 0;
 880 }
 881
 882 /*
 883 ================
 884 SV_ConnectClient
 885
 886 Initializes a client_t for a new net connection.  This will only be called
 887 once for a player each game, not once for each level change.
 888 ================
 889 */
 890 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 891 {
 892         client_t                *client;
 893         int                             i;
 894         float                   spawn_parms[NUM_SPAWN_PARMS];
 895
 896         client = svs.clients + clientnum;
 897
 898 // set up the client_t
 899         if (sv.loadgame)
 900                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 901         memset (client, 0, sizeof(*client));
 902         client->active = true;
 903         client->netconnection = netconnection;
 904
 905         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
 906
 907         strlcpy(client->name, "unconnected", sizeof(client->name));
 908         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
 909         client->spawned = false;
 910         client->edict = PRVM_EDICT_NUM(clientnum+1);
 911         if (client->netconnection)
 912                 client->netconnection->message.allowoverflow = true;            // we can catch it
 913         // prepare the unreliable message buffer
 914         client->unreliablemsg.data = client->unreliablemsg_data;
 915         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
 916         // updated by receiving "rate" command from client, this is also the default if not using a DP client
 917         client->rate = 1000000000;
 918         // no limits for local player
 919         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
 920                 client->rate = 1000000000;
 921         client->connecttime = realtime;
 922
 923         if (sv.loadgame)
 924                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 925         else
 926         {
 927                 // call the progs to get default spawn parms for the new client
 928                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
 929                 prog->globals.server->self = 0;
 930                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
 931                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 932                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
 933
 934                 // set up the entity for this client (including .colormap, .team, etc)
 935                 PRVM_ED_ClearEdict(client->edict);
 936         }
 937
 938         // don't call SendServerinfo for a fresh botclient because its fields have
 939         // not been set up by the qc yet
 940         if (client->netconnection)
 941                 SV_SendServerinfo (client);
 942         else
 943                 client->spawned = true;
 944 }
 945
 946
 947 /*
 948 ===============================================================================
 949
 950 FRAME UPDATES
 951
 952 ===============================================================================
 953 */
 954
 955 /*
 956 =============================================================================
 957
 958 The PVS must include a small area around the client to allow head bobbing
 959 or other small motion on the client side.  Otherwise, a bob might cause an
 960 entity that should be visible to not show up, especially when the bob
 961 crosses a waterline.
 962
 963 =============================================================================
 964 */
 965
 966 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
 967 {
 968         int i;
 969         unsigned int sendflags;
 970         unsigned int version;
 971         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
 972         unsigned int customizeentityforclient;
 973         float f;
 974         vec3_t cullmins, cullmaxs;
 975         dp_model_t *model;
 976         prvm_eval_t *val, *val2;
 977
 978         // this 2 billion unit check is actually to detect NAN origins
 979         // (we really don't want to send those)
 980         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
 981                 return false;
 982
 983         // EF_NODRAW prevents sending for any reason except for your own
 984         // client, so we must keep all clients in this superset
 985         effects = (unsigned)ent->fields.server->effects;
 986
 987         // we can omit invisible entities with no effects that are not clients
 988         // LordHavoc: this could kill tags attached to an invisible entity, I
 989         // just hope we never have to support that case
 990         i = (int)ent->fields.server->modelindex;
 991         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
 992
 993         flags = 0;
 994         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
 995         glowsize = (unsigned char)bound(0, i, 255);
 996         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
 997                 flags |= RENDER_GLOWTRAIL;
 998         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
 999                 flags |= RENDER_VIEWMODEL;
1000
1001         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
1002         light[0] = (unsigned short)bound(0, f, 65535);
1003         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
1004         light[1] = (unsigned short)bound(0, f, 65535);
1005         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
1006         light[2] = (unsigned short)bound(0, f, 65535);
1007         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1008         light[3] = (unsigned short)bound(0, f, 65535);
1009         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1010         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1011
1012         if (gamemode == GAME_TENEBRAE)
1013         {
1014                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1015                 if (effects & 16)
1016                 {
1017                         effects &= ~16;
1018                         lightpflags |= PFLAGS_FULLDYNAMIC;
1019                 }
1020                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1021                 if (effects & 32)
1022                 {
1023                         effects &= ~32;
1024                         light[0] = (int)(0.2*256);
1025                         light[1] = (int)(1.0*256);
1026                         light[2] = (int)(0.2*256);
1027                         light[3] = 200;
1028                         lightpflags |= PFLAGS_FULLDYNAMIC;
1029                 }
1030         }
1031
1032         specialvisibilityradius = 0;
1033         if (lightpflags & PFLAGS_FULLDYNAMIC)
1034                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1035         if (glowsize)
1036                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1037         if (flags & RENDER_GLOWTRAIL)
1038                 specialvisibilityradius = max(specialvisibilityradius, 100);
1039         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1040         {
1041                 if (effects & EF_BRIGHTFIELD)
1042                         specialvisibilityradius = max(specialvisibilityradius, 80);
1043                 if (effects & EF_MUZZLEFLASH)
1044                         specialvisibilityradius = max(specialvisibilityradius, 100);
1045                 if (effects & EF_BRIGHTLIGHT)
1046                         specialvisibilityradius = max(specialvisibilityradius, 400);
1047                 if (effects & EF_DIMLIGHT)
1048                         specialvisibilityradius = max(specialvisibilityradius, 200);
1049                 if (effects & EF_RED)
1050                         specialvisibilityradius = max(specialvisibilityradius, 200);
1051                 if (effects & EF_BLUE)
1052                         specialvisibilityradius = max(specialvisibilityradius, 200);
1053                 if (effects & EF_FLAME)
1054                         specialvisibilityradius = max(specialvisibilityradius, 250);
1055                 if (effects & EF_STARDUST)
1056                         specialvisibilityradius = max(specialvisibilityradius, 100);
1057         }
1058
1059         // early culling checks
1060         // (final culling is done by SV_MarkWriteEntityStateToClient)
1061         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1062         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1063                 return false;
1064
1065         *cs = defaultstate;
1066         cs->active = true;
1067         cs->number = enumber;
1068         VectorCopy(ent->fields.server->origin, cs->origin);
1069         VectorCopy(ent->fields.server->angles, cs->angles);
1070         cs->flags = flags;
1071         cs->effects = effects;
1072         cs->colormap = (unsigned)ent->fields.server->colormap;
1073         cs->modelindex = modelindex;
1074         cs->skin = (unsigned)ent->fields.server->skin;
1075         cs->frame = (unsigned)ent->fields.server->frame;
1076         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1077         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1078         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1079         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1080         cs->customizeentityforclient = customizeentityforclient;
1081         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1082         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1083         cs->glowsize = glowsize;
1084
1085         // don't need to init cs->colormod because the defaultstate did that for us
1086         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1087         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1088         if (val->vector[0] || val->vector[1] || val->vector[2])
1089         {
1090                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1091                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1092                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1093         }
1094
1095         cs->modelindex = modelindex;
1096
1097         cs->alpha = 255;
1098         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1099         if (f)
1100         {
1101                 i = (int)f;
1102                 cs->alpha = (unsigned char)bound(0, i, 255);
1103         }
1104         // halflife
1105         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1106         if (f)
1107         {
1108                 i = (int)f;
1109                 cs->alpha = (unsigned char)bound(0, i, 255);
1110         }
1111
1112         cs->scale = 16;
1113         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1114         if (f)
1115         {
1116                 i = (int)f;
1117                 cs->scale = (unsigned char)bound(0, i, 255);
1118         }
1119
1120         cs->glowcolor = 254;
1121         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1122         if (f)
1123                 cs->glowcolor = (int)f;
1124
1125         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1126                 cs->effects |= EF_FULLBRIGHT;
1127
1128         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1129         if (val && val->_float)
1130                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1131
1132         if (ent->fields.server->movetype == MOVETYPE_STEP)
1133                 cs->flags |= RENDER_STEP;
1134         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)
1135                 cs->flags |= RENDER_LOWPRECISION;
1136         if (ent->fields.server->colormap >= 1024)
1137                 cs->flags |= RENDER_COLORMAPPED;
1138         if (cs->viewmodelforclient)
1139                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1140
1141         cs->light[0] = light[0];
1142         cs->light[1] = light[1];
1143         cs->light[2] = light[2];
1144         cs->light[3] = light[3];
1145         cs->lightstyle = lightstyle;
1146         cs->lightpflags = lightpflags;
1147
1148         cs->specialvisibilityradius = specialvisibilityradius;
1149
1150         // calculate the visible box of this entity (don't use the physics box
1151         // as that is often smaller than a model, and would not count
1152         // specialvisibilityradius)
1153         if ((model = sv.models[modelindex]))
1154         {
1155                 float scale = cs->scale * (1.0f / 16.0f);
1156                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1157                 {
1158                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1159                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1160                 }
1161                 else if (cs->angles[1])
1162                 {
1163                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1164                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1165                 }
1166                 else
1167                 {
1168                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1169                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1170                 }
1171         }
1172         else
1173         {
1174                 // if there is no model (or it could not be loaded), use the physics box
1175                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1176                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1177         }
1178         if (specialvisibilityradius)
1179         {
1180                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1181                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1182                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1183                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1184                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1185                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1186         }
1187
1188         // calculate center of bbox for network prioritization purposes
1189         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1190
1191         // if culling box has moved, update pvs cluster links
1192         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1193         {
1194                 VectorCopy(cullmins, ent->priv.server->cullmins);
1195                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1196                 // a value of -1 for pvs_numclusters indicates that the links are not
1197                 // cached, and should be re-tested each time, this is the case if the
1198                 // culling box touches too many pvs clusters to store, or if the world
1199                 // model does not support FindBoxClusters
1200                 ent->priv.server->pvs_numclusters = -1;
1201                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1202                 {
1203                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1204                         if (i <= MAX_ENTITYCLUSTERS)
1205                                 ent->priv.server->pvs_numclusters = i;
1206                 }
1207         }
1208
1209         // we need to do some csqc entity upkeep here
1210         // get self.SendFlags and clear them
1211         // (to let the QC know that they've been read)
1212         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity);
1213         if (val->function)
1214         {
1215                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1216                 sendflags = (unsigned int)val->_float;
1217                 val->_float = 0;
1218                 // legacy self.Version system
1219                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1220                 if (val2->_float)
1221                 {
1222                         version = (unsigned int)val2->_float;
1223                         if (sv.csqcentityversion[enumber] != version)
1224                                 sendflags = 0xFFFFFF;
1225                         sv.csqcentityversion[enumber] = version;
1226                 }
1227                 // move sendflags into the per-client sendflags
1228                 if (sendflags)
1229                         for (i = 0;i < svs.maxclients;i++)
1230                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1231         }
1232
1233         return true;
1234 }
1235
1236 void SV_PrepareEntitiesForSending(void)
1237 {
1238         int e;
1239         prvm_edict_t *ent;
1240         // send all entities that touch the pvs
1241         sv.numsendentities = 0;
1242         sv.sendentitiesindex[0] = NULL;
1243         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1244         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1245         {
1246                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1247                 {
1248                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1249                         sv.numsendentities++;
1250                 }
1251         }
1252 }
1253
1254 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1255 {
1256         int isbmodel;
1257         dp_model_t *model;
1258         prvm_edict_t *ed;
1259         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1260                 return;
1261         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1262         sv.writeentitiestoclient_stats_totalentities++;
1263
1264         if (s->customizeentityforclient)
1265         {
1266                 prog->globals.server->self = s->number;
1267                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1268                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1269                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1270                         return;
1271         }
1272
1273         // never reject player
1274         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1275         {
1276                 // check various rejection conditions
1277                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1278                         return;
1279                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1280                         return;
1281                 if (s->effects & EF_NODRAW)
1282                         return;
1283                 // LordHavoc: only send entities with a model or important effects
1284                 if (!s->modelindex && s->specialvisibilityradius == 0)
1285                         return;
1286
1287                 isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
1288                 // viewmodels don't have visibility checking
1289                 if (s->viewmodelforclient)
1290                 {
1291                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1292                                 return;
1293                 }
1294                 else if (s->tagentity)
1295                 {
1296                         // tag attached entities simply check their parent
1297                         if (!sv.sendentitiesindex[s->tagentity])
1298                                 return;
1299                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1300                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1301                                 return;
1302                 }
1303                 // always send world submodels in newer protocols because they don't
1304                 // generate much traffic (in old protocols they hog bandwidth)
1305                 // but only if sv_cullentities_nevercullbmodels is off
1306                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1307                 {
1308                         // entity has survived every check so far, check if visible
1309                         ed = PRVM_EDICT_NUM(s->number);
1310
1311                         // if not touching a visible leaf
1312                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1313                         {
1314                                 if (ed->priv.server->pvs_numclusters < 0)
1315                                 {
1316                                         // entity too big for clusters list
1317                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1318                                         {
1319                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1320                                                 return;
1321                                         }
1322                                 }
1323                                 else
1324                                 {
1325                                         int i;
1326                                         // check cached clusters list
1327                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1328                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1329                                                         break;
1330                                         if (i == ed->priv.server->pvs_numclusters)
1331                                         {
1332                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1333                                                 return;
1334                                         }
1335                                 }
1336                         }
1337
1338                         // or not seen by random tracelines
1339                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1340                         {
1341                                 int samples =
1342                                         s->number <= svs.maxclients
1343                                                 ? sv_cullentities_trace_samples_players.integer
1344                                                 :
1345                                         s->specialvisibilityradius
1346                                                 ? sv_cullentities_trace_samples_extra.integer
1347                                                 : sv_cullentities_trace_samples.integer;
1348                                 float enlarge = sv_cullentities_trace_enlarge.value;
1349
1350                                 qboolean visible = TRUE;
1351
1352                                 if(samples > 0)
1353                                 {
1354                                         do
1355                                         {
1356                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1357                                                         break; // directly visible from the server's view
1358
1359                                                 if(sv_cullentities_trace_prediction.integer)
1360                                                 {
1361                                                         vec3_t predeye;
1362
1363                                                         // get player velocity
1364                                                         float predtime = bound(0, host_client->ping, 0.2); // / 2
1365                                                                 // sorry, no wallhacking by high ping please, and at 200ms
1366                                                                 // ping a FPS is annoying to play anyway and a player is
1367                                                                 // likely to have changed his direction
1368                                                         VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1369                                                         if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1370                                                         {
1371                                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1372                                                                         break; // directly visible from the predicted view
1373                                                         }
1374                                                         else
1375                                                         {
1376                                                                 //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1377                                                         }
1378                                                 }
1379
1380                                                 // when we get here, we can't see the entity
1381                                                 visible = false;
1382                                         }
1383                                         while(0);
1384
1385                                         if(visible)
1386                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1387                                                         realtime + (
1388                                                                 s->number <= svs.maxclients
1389                                                                         ? sv_cullentities_trace_delay_players.value
1390                                                                         : sv_cullentities_trace_delay.value
1391                                                         );
1392                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1393                                         {
1394                                                 sv.writeentitiestoclient_stats_culled_trace++;
1395                                                 return;
1396                                         }
1397                                 }
1398                         }
1399                 }
1400         }
1401
1402         // this just marks it for sending
1403         // FIXME: it would be more efficient to send here, but the entity
1404         // compressor isn't that flexible
1405         sv.writeentitiestoclient_stats_visibleentities++;
1406         sv.sententities[s->number] = sv.sententitiesmark;
1407 }
1408
1409 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1410 {
1411         int i, numsendstates;
1412         entity_state_t *s;
1413         prvm_edict_t *camera;
1414
1415         // if there isn't enough space to accomplish anything, skip it
1416         if (msg->cursize + 25 > maxsize)
1417                 return;
1418
1419         sv.writeentitiestoclient_msg = msg;
1420         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1421
1422         sv.writeentitiestoclient_stats_culled_pvs = 0;
1423         sv.writeentitiestoclient_stats_culled_trace = 0;
1424         sv.writeentitiestoclient_stats_visibleentities = 0;
1425         sv.writeentitiestoclient_stats_totalentities = 0;
1426
1427 // find the client's PVS
1428         // the real place being tested from
1429         camera = PRVM_EDICT_NUM( client->clientcamera );
1430         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1431         sv.writeentitiestoclient_pvsbytes = 0;
1432         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1433                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
1434
1435         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1436
1437         sv.sententitiesmark++;
1438
1439         for (i = 0;i < sv.numsendentities;i++)
1440                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1441
1442         numsendstates = 0;
1443         for (i = 0;i < sv.numsendentities;i++)
1444         {
1445                 if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
1446                 {
1447                         s = &sv.writeentitiestoclient_sendstates[numsendstates++];
1448                         *s = sv.sendentities[i];
1449                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1450                                 s->flags |= RENDER_EXTERIORMODEL;
1451                 }
1452         }
1453
1454         if (sv_cullentities_stats.integer)
1455                 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);
1456
1457         if(client->entitydatabase5)
1458                 EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, client->entitydatabase5->latestframenum + 1);
1459         else
1460                 EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, 0);
1461
1462         if (client->entitydatabase5)
1463                 EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence);
1464         else if (client->entitydatabase4)
1465         {
1466                 EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1467                 Protocol_WriteStatsReliable();
1468         }
1469         else if (client->entitydatabase)
1470         {
1471                 EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1472                 Protocol_WriteStatsReliable();
1473         }
1474         else
1475         {
1476                 EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1477                 Protocol_WriteStatsReliable();
1478         }
1479 }
1480
1481 /*
1482 =============
1483 SV_CleanupEnts
1484
1485 =============
1486 */
1487 static void SV_CleanupEnts (void)
1488 {
1489         int             e;
1490         prvm_edict_t    *ent;
1491
1492         ent = PRVM_NEXT_EDICT(prog->edicts);
1493         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1494                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1495 }
1496
1497 /*
1498 ==================
1499 SV_WriteClientdataToMessage
1500
1501 ==================
1502 */
1503 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1504 {
1505         int             bits;
1506         int             i;
1507         prvm_edict_t    *other;
1508         int             items;
1509         prvm_eval_t     *val;
1510         vec3_t  punchvector;
1511         int             viewzoom;
1512         const char *s;
1513         float   *statsf = (float *)stats;
1514
1515 //
1516 // send a damage message
1517 //
1518         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1519         {
1520                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1521                 MSG_WriteByte (msg, svc_damage);
1522                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1523                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1524                 for (i=0 ; i<3 ; i++)
1525                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1526
1527                 ent->fields.server->dmg_take = 0;
1528                 ent->fields.server->dmg_save = 0;
1529         }
1530
1531 //
1532 // send the current viewpos offset from the view entity
1533 //
1534         SV_SetIdealPitch ();            // how much to look up / down ideally
1535
1536 // a fixangle might get lost in a dropped packet.  Oh well.
1537         if(ent->fields.server->fixangle)
1538         {
1539                 // angle fixing was requested by global thinking code...
1540                 // so store the current angles for later use
1541                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1542                 host_client->fixangle_angles_set = TRUE;
1543
1544                 // and clear fixangle for the next frame
1545                 ent->fields.server->fixangle = 0;
1546         }
1547
1548         if (host_client->fixangle_angles_set)
1549         {
1550                 MSG_WriteByte (msg, svc_setangle);
1551                 for (i=0 ; i < 3 ; i++)
1552                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1553                 host_client->fixangle_angles_set = FALSE;
1554         }
1555
1556         // stuff the sigil bits into the high bits of items for sbar, or else
1557         // mix in items2
1558         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1559         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1560                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1561         else
1562                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1563
1564         VectorClear(punchvector);
1565         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1566                 VectorCopy(val->vector, punchvector);
1567
1568         // cache weapon model name and index in client struct to save time
1569         // (this search can be almost 1% of cpu time!)
1570         s = PRVM_GetString(ent->fields.server->weaponmodel);
1571         if (strcmp(s, client->weaponmodel))
1572         {
1573                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1574                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1575         }
1576
1577         viewzoom = 255;
1578         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1579                 viewzoom = (int)(val->_float * 255.0f);
1580         if (viewzoom == 0)
1581                 viewzoom = 255;
1582
1583         bits = 0;
1584
1585         if ((int)ent->fields.server->flags & FL_ONGROUND)
1586                 bits |= SU_ONGROUND;
1587         if (ent->fields.server->waterlevel >= 2)
1588                 bits |= SU_INWATER;
1589         if (ent->fields.server->idealpitch)
1590                 bits |= SU_IDEALPITCH;
1591
1592         for (i=0 ; i<3 ; i++)
1593         {
1594                 if (ent->fields.server->punchangle[i])
1595                         bits |= (SU_PUNCH1<<i);
1596                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
1597                         if (punchvector[i])
1598                                 bits |= (SU_PUNCHVEC1<<i);
1599                 if (ent->fields.server->velocity[i])
1600                         bits |= (SU_VELOCITY1<<i);
1601         }
1602
1603         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1604         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1605         stats[STAT_ITEMS] = items;
1606         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1607         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1608         stats[STAT_WEAPON] = client->weaponmodelindex;
1609         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1610         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1611         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1612         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1613         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1614         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1615         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1616         stats[STAT_VIEWZOOM] = viewzoom;
1617         stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
1618         stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
1619         // the QC bumps these itself by sending svc_'s, so we have to keep them
1620         // zero or they'll be corrected by the engine
1621         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1622         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1623
1624         // movement settings for prediction
1625         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1626         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1627         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1628         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1629         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1630         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1631         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1632         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1633         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1634         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1635         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1636         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1637         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1638         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1639         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1640         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1641         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1642         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1643         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1644         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1645         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1646         statsf[STAT_TIMELIMIT] = timelimit.value;
1647
1648         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)
1649         {
1650                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1651                 bits |= SU_ITEMS;
1652                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1653                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1654                 bits |= SU_WEAPON;
1655                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1656                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1657                         if (viewzoom != 255)
1658                                 bits |= SU_VIEWZOOM;
1659         }
1660
1661         if (bits >= 65536)
1662                 bits |= SU_EXTEND1;
1663         if (bits >= 16777216)
1664                 bits |= SU_EXTEND2;
1665
1666         // send the data
1667         MSG_WriteByte (msg, svc_clientdata);
1668         MSG_WriteShort (msg, bits);
1669         if (bits & SU_EXTEND1)
1670                 MSG_WriteByte(msg, bits >> 16);
1671         if (bits & SU_EXTEND2)
1672                 MSG_WriteByte(msg, bits >> 24);
1673
1674         if (bits & SU_VIEWHEIGHT)
1675                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1676
1677         if (bits & SU_IDEALPITCH)
1678                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1679
1680         for (i=0 ; i<3 ; i++)
1681         {
1682                 if (bits & (SU_PUNCH1<<i))
1683                 {
1684                         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)
1685                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1686                         else
1687                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1688                 }
1689                 if (bits & (SU_PUNCHVEC1<<i))
1690                 {
1691                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1692                                 MSG_WriteCoord16i(msg, punchvector[i]);
1693                         else
1694                                 MSG_WriteCoord32f(msg, punchvector[i]);
1695                 }
1696                 if (bits & (SU_VELOCITY1<<i))
1697                 {
1698                         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)
1699                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1700                         else
1701                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1702                 }
1703         }
1704
1705         if (bits & SU_ITEMS)
1706                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1707
1708         if (sv.protocol == PROTOCOL_DARKPLACES5)
1709         {
1710                 if (bits & SU_WEAPONFRAME)
1711                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1712                 if (bits & SU_ARMOR)
1713                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1714                 if (bits & SU_WEAPON)
1715                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1716                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1717                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1718                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1719                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1720                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1721                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1722                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1723                 if (bits & SU_VIEWZOOM)
1724                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1725         }
1726         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)
1727         {
1728                 if (bits & SU_WEAPONFRAME)
1729                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1730                 if (bits & SU_ARMOR)
1731                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1732                 if (bits & SU_WEAPON)
1733                 {
1734                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1735                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
1736                         else
1737                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
1738                 }
1739                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1740                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1741                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1742                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1743                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1744                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1745                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1746                 {
1747                         for (i = 0;i < 32;i++)
1748                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1749                                         break;
1750                         MSG_WriteByte (msg, i);
1751                 }
1752                 else
1753                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1754                 if (bits & SU_VIEWZOOM)
1755                 {
1756                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1757                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1758                         else
1759                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1760                 }
1761         }
1762 }
1763
1764 void SV_FlushBroadcastMessages(void)
1765 {
1766         int i;
1767         client_t *client;
1768         if (sv.datagram.cursize <= 0)
1769                 return;
1770         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1771         {
1772                 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])))
1773                         continue;
1774                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1775                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1776         }
1777         SZ_Clear(&sv.datagram);
1778 }
1779
1780 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize)
1781 {
1782         // scan the splitpoints to find out how many we can fit in
1783         int numsegments, j, split;
1784         if (!client->unreliablemsg_splitpoints)
1785                 return;
1786         // always accept the first one if it's within 1024 bytes, this ensures
1787         // that very big datagrams which are over the rate limit still get
1788         // through, just to keep it working
1789         j = msg->cursize + client->unreliablemsg_splitpoint[0];
1790         if (maxsize < 1024 && j > maxsize && j <= 1024)
1791         {
1792                 numsegments = 1;
1793                 maxsize = 1024;
1794         }
1795         else
1796                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1797                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
1798                                 break;
1799         if (numsegments > 0)
1800         {
1801                 // some will fit, so add the ones that will fit
1802                 split = client->unreliablemsg_splitpoint[numsegments-1];
1803                 // note this discards ones that were accepted by the segments scan but
1804                 // can not fit, such as a really huge first one that will never ever
1805                 // fit in a packet...
1806                 if (msg->cursize + split <= maxsize)
1807                         SZ_Write(msg, client->unreliablemsg.data, split);
1808                 // remove the part we sent, keeping any remaining data
1809                 client->unreliablemsg.cursize -= split;
1810                 if (client->unreliablemsg.cursize > 0)
1811                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1812                 // adjust remaining splitpoints
1813                 client->unreliablemsg_splitpoints -= numsegments;
1814                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1815                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1816         }
1817 }
1818
1819 /*
1820 =======================
1821 SV_SendClientDatagram
1822 =======================
1823 */
1824 static void SV_SendClientDatagram (client_t *client)
1825 {
1826         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1827         sizebuf_t msg;
1828         int stats[MAX_CL_STATS];
1829         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1830
1831         // obey rate limit by limiting packet frequency if the packet size
1832         // limiting fails
1833         // (usually this is caused by reliable messages)
1834         if (!NetConn_CanSend(client->netconnection))
1835                 return;
1836
1837         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1838         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1839         if (sv_maxrate.integer != maxrate)
1840                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1841
1842         // clientrate determines the 'cleartime' of a packet
1843         // (how long to wait before sending another, based on this packet's size)
1844         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1845
1846         switch (sv.protocol)
1847         {
1848         case PROTOCOL_QUAKE:
1849         case PROTOCOL_QUAKEDP:
1850         case PROTOCOL_NEHAHRAMOVIE:
1851         case PROTOCOL_NEHAHRABJP:
1852         case PROTOCOL_NEHAHRABJP2:
1853         case PROTOCOL_NEHAHRABJP3:
1854         case PROTOCOL_QUAKEWORLD:
1855                 // no packet size limit support on Quake protocols because it just
1856                 // causes missing entities/effects
1857                 // packets are simply sent less often to obey the rate limit
1858                 maxsize = 1024;
1859                 maxsize2 = 1024;
1860                 break;
1861         case PROTOCOL_DARKPLACES1:
1862         case PROTOCOL_DARKPLACES2:
1863         case PROTOCOL_DARKPLACES3:
1864         case PROTOCOL_DARKPLACES4:
1865                 // no packet size limit support on DP1-4 protocols because they kick
1866                 // the client off if they overflow, and miss effects
1867                 // packets are simply sent less often to obey the rate limit
1868                 maxsize = sizeof(sv_sendclientdatagram_buf);
1869                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1870                 break;
1871         default:
1872                 // DP5 and later protocols support packet size limiting which is a
1873                 // better method than limiting packet frequency as QW does
1874                 //
1875                 // at very low rates (or very small sys_ticrate) the packet size is
1876                 // not reduced below 128, but packets may be sent less often
1877                 maxsize = (int)(clientrate * sys_ticrate.value);
1878                 maxsize = bound(128, maxsize, 1400);
1879                 maxsize2 = 1400;
1880                 // csqc entities can easily exceed 128 bytes, so disable throttling in
1881                 // mods that use csqc (they are likely to use less bandwidth anyway)
1882                 if (sv.csqc_progsize > 0)
1883                         maxsize = maxsize2;
1884                 break;
1885         }
1886
1887         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1888         {
1889                 // for good singleplayer, send huge packets
1890                 maxsize = sizeof(sv_sendclientdatagram_buf);
1891                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1892                 // never limit frequency in singleplayer
1893                 clientrate = 1000000000;
1894         }
1895
1896         // while downloading, limit entity updates to half the packet
1897         // (any leftover space will be used for downloading)
1898         if (host_client->download_file)
1899                 maxsize /= 2;
1900
1901         msg.data = sv_sendclientdatagram_buf;
1902         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1903         msg.cursize = 0;
1904         msg.allowoverflow = false;
1905
1906         if (host_client->spawned)
1907         {
1908                 // the player is in the game
1909                 MSG_WriteByte (&msg, svc_time);
1910                 MSG_WriteFloat (&msg, sv.time);
1911
1912                 // add the client specific data to the datagram
1913                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1914                 // now update the stats[] array using any registered custom fields
1915                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1916                 // set host_client->statsdeltabits
1917                 Protocol_UpdateClientStats (stats);
1918
1919                 // add as many queued unreliable messages (effects) as we can fit
1920                 // limit effects to half of the remaining space
1921                 if (client->unreliablemsg.cursize)
1922                         SV_WriteUnreliableMessages (client, &msg, (msg.cursize + maxsize) / 2);
1923
1924                 // now write as many entities as we can fit, and also sends stats
1925                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
1926         }
1927         else if (realtime > client->keepalivetime)
1928         {
1929                 // the player isn't totally in the game yet
1930                 // send small keepalive messages if too much time has passed
1931                 // (may also be sending downloads)
1932                 client->keepalivetime = realtime + 5;
1933                 MSG_WriteChar (&msg, svc_nop);
1934         }
1935
1936         // if a download is active, see if there is room to fit some download data
1937         // in this packet
1938         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
1939         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1940         {
1941                 fs_offset_t downloadstart;
1942                 unsigned char data[1400];
1943                 downloadstart = FS_Tell(host_client->download_file);
1944                 downloadsize = min(downloadsize, (int)sizeof(data));
1945                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1946                 // note this sends empty messages if at the end of the file, which is
1947                 // necessary to keep the packet loss logic working
1948                 // (the last blocks may be lost and need to be re-sent, and that will
1949                 //  only occur if the client acks the empty end messages, revealing
1950                 //  a gap in the download progress, causing the last blocks to be
1951                 //  sent again)
1952                 MSG_WriteChar (&msg, svc_downloaddata);
1953                 MSG_WriteLong (&msg, downloadstart);
1954                 MSG_WriteShort (&msg, downloadsize);
1955                 if (downloadsize > 0)
1956                         SZ_Write (&msg, data, downloadsize);
1957         }
1958
1959         // reliable only if none is in progress
1960         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
1961                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
1962         // unreliable
1963         SV_WriteDemoMessage(client, &msg, false);
1964
1965 // send the datagram
1966         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1967         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1968                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1969 }
1970
1971 /*
1972 =======================
1973 SV_UpdateToReliableMessages
1974 =======================
1975 */
1976 static void SV_UpdateToReliableMessages (void)
1977 {
1978         int i, j;
1979         client_t *client;
1980         prvm_eval_t *val;
1981         const char *name;
1982         const char *model;
1983         const char *skin;
1984
1985 // check for changes to be sent over the reliable streams
1986         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1987         {
1988                 // update the host_client fields we care about according to the entity fields
1989                 host_client->edict = PRVM_EDICT_NUM(i+1);
1990
1991                 // DP_SV_CLIENTNAME
1992                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1993                 if (name == NULL)
1994                         name = "";
1995                 // always point the string back at host_client->name to keep it safe
1996                 strlcpy (host_client->name, name, sizeof (host_client->name));
1997                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1998                 if (strcmp(host_client->old_name, host_client->name))
1999                 {
2000                         if (host_client->spawned)
2001                                 SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
2002                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
2003                         // send notification to all clients
2004                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
2005                         MSG_WriteByte (&sv.reliable_datagram, i);
2006                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
2007                         SV_WriteNetnameIntoDemo(host_client);
2008                 }
2009
2010                 // DP_SV_CLIENTCOLORS
2011                 // this is always found (since it's added by the progs loader)
2012                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2013                         host_client->colors = (int)val->_float;
2014                 if (host_client->old_colors != host_client->colors)
2015                 {
2016                         host_client->old_colors = host_client->colors;
2017                         // send notification to all clients
2018                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2019                         MSG_WriteByte (&sv.reliable_datagram, i);
2020                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2021                 }
2022
2023                 // NEXUIZ_PLAYERMODEL
2024                 if( prog->fieldoffsets.playermodel >= 0 ) {
2025                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2026                         if (model == NULL)
2027                                 model = "";
2028                         // always point the string back at host_client->name to keep it safe
2029                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2030                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2031                 }
2032
2033                 // NEXUIZ_PLAYERSKIN
2034                 if( prog->fieldoffsets.playerskin >= 0 ) {
2035                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2036                         if (skin == NULL)
2037                                 skin = "";
2038                         // always point the string back at host_client->name to keep it safe
2039                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2040                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2041                 }
2042
2043                 // TODO: add an extension name for this [1/17/2008 Black]
2044                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2045                         int oldclientcamera = host_client->clientcamera;
2046                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2047                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2048                         } else {
2049                                 host_client->clientcamera = val->edict;
2050                         }
2051
2052                         if( oldclientcamera != host_client->clientcamera ) {
2053                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
2054                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2055                         }
2056                 }
2057
2058                 // frags
2059                 host_client->frags = (int)host_client->edict->fields.server->frags;
2060                 if(gamemode == GAME_NEXUIZ)
2061                         if(!host_client->spawned && host_client->netconnection)
2062                                 host_client->frags = -666;
2063                 if (host_client->old_frags != host_client->frags)
2064                 {
2065                         host_client->old_frags = host_client->frags;
2066                         // send notification to all clients
2067                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2068                         MSG_WriteByte (&sv.reliable_datagram, i);
2069                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2070                 }
2071         }
2072
2073         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2074                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2075                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2076
2077         SZ_Clear (&sv.reliable_datagram);
2078 }
2079
2080
2081 /*
2082 =======================
2083 SV_SendClientMessages
2084 =======================
2085 */
2086 void SV_SendClientMessages (void)
2087 {
2088         int i, prepared = false;
2089
2090         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2091                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2092
2093         SV_FlushBroadcastMessages();
2094
2095 // update frags, names, etc
2096         SV_UpdateToReliableMessages();
2097
2098 // build individual updates
2099         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2100         {
2101                 if (!host_client->active)
2102                         continue;
2103                 if (!host_client->netconnection)
2104                         continue;
2105
2106                 if (host_client->netconnection->message.overflowed)
2107                 {
2108                         SV_DropClient (true);   // if the message couldn't send, kick off
2109                         continue;
2110                 }
2111
2112                 if (!prepared)
2113                 {
2114                         prepared = true;
2115                         // only prepare entities once per frame
2116                         SV_PrepareEntitiesForSending();
2117                 }
2118                 SV_SendClientDatagram (host_client);
2119         }
2120
2121 // clear muzzle flashes
2122         SV_CleanupEnts();
2123 }
2124
2125 static void SV_StartDownload_f(void)
2126 {
2127         if (host_client->download_file)
2128                 host_client->download_started = true;
2129 }
2130
2131 static void SV_Download_f(void)
2132 {
2133         const char *whichpack, *whichpack2, *extension;
2134
2135         if (Cmd_Argc() != 2)
2136         {
2137                 SV_ClientPrintf("usage: download <filename>\n");
2138                 return;
2139         }
2140
2141         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2142         {
2143                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2144                 return;
2145         }
2146
2147         if (host_client->download_file)
2148         {
2149                 // at this point we'll assume the previous download should be aborted
2150                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2151                 Host_ClientCommands("\nstopdownload\n");
2152
2153                 // close the file and reset variables
2154                 FS_Close(host_client->download_file);
2155                 host_client->download_file = NULL;
2156                 host_client->download_name[0] = 0;
2157                 host_client->download_expectedposition = 0;
2158                 host_client->download_started = false;
2159         }
2160
2161         if (!sv_allowdownloads.integer)
2162         {
2163                 SV_ClientPrintf("Downloads are disabled on this server\n");
2164                 Host_ClientCommands("\nstopdownload\n");
2165                 return;
2166         }
2167
2168         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2169         extension = FS_FileExtension(host_client->download_name);
2170
2171         // host_client is asking to download a specified file
2172         if (developer.integer >= 100)
2173                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2174
2175         if (!FS_FileExists(host_client->download_name))
2176         {
2177                 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);
2178                 Host_ClientCommands("\nstopdownload\n");
2179                 return;
2180         }
2181
2182         // check if the user is trying to download part of registered Quake(r)
2183         whichpack = FS_WhichPack(host_client->download_name);
2184         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2185         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2186         {
2187                 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);
2188                 Host_ClientCommands("\nstopdownload\n");
2189                 return;
2190         }
2191
2192         // check if the server has forbidden archive downloads entirely
2193         if (!sv_allowdownloads_inarchive.integer)
2194         {
2195                 whichpack = FS_WhichPack(host_client->download_name);
2196                 if (whichpack)
2197                 {
2198                         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);
2199                         Host_ClientCommands("\nstopdownload\n");
2200                         return;
2201                 }
2202         }
2203
2204         if (!sv_allowdownloads_config.integer)
2205         {
2206                 if (!strcasecmp(extension, "cfg"))
2207                 {
2208                         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);
2209                         Host_ClientCommands("\nstopdownload\n");
2210                         return;
2211                 }
2212         }
2213
2214         if (!sv_allowdownloads_dlcache.integer)
2215         {
2216                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2217                 {
2218                         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);
2219                         Host_ClientCommands("\nstopdownload\n");
2220                         return;
2221                 }
2222         }
2223
2224         if (!sv_allowdownloads_archive.integer)
2225         {
2226                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2227                 {
2228                         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);
2229                         Host_ClientCommands("\nstopdownload\n");
2230                         return;
2231                 }
2232         }
2233
2234         host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
2235         if (!host_client->download_file)
2236         {
2237                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2238                 Host_ClientCommands("\nstopdownload\n");
2239                 return;
2240         }
2241
2242         if (FS_FileSize(host_client->download_file) > 1<<30)
2243         {
2244                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2245                 Host_ClientCommands("\nstopdownload\n");
2246                 FS_Close(host_client->download_file);
2247                 host_client->download_file = NULL;
2248                 return;
2249         }
2250
2251         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2252
2253         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2254
2255         host_client->download_expectedposition = 0;
2256         host_client->download_started = false;
2257         host_client->sendsignon = true; // make sure this message is sent
2258
2259         // the rest of the download process is handled in SV_SendClientDatagram
2260         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2261         //
2262         // no svc_downloaddata messages will be sent until sv_startdownload is
2263         // sent by the client
2264 }
2265
2266 /*
2267 ==============================================================================
2268
2269 SERVER SPAWNING
2270
2271 ==============================================================================
2272 */
2273
2274 /*
2275 ================
2276 SV_ModelIndex
2277
2278 ================
2279 */
2280 int SV_ModelIndex(const char *s, int precachemode)
2281 {
2282         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);
2283         char filename[MAX_QPATH];
2284         if (!s || !*s)
2285                 return 0;
2286         // testing
2287         //if (precachemode == 2)
2288         //      return 0;
2289         strlcpy(filename, s, sizeof(filename));
2290         for (i = 2;i < limit;i++)
2291         {
2292                 if (!sv.model_precache[i][0])
2293                 {
2294                         if (precachemode)
2295                         {
2296                                 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))
2297                                 {
2298                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2299                                         return 0;
2300                                 }
2301                                 if (precachemode == 1)
2302                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2303                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2304                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2305                                 if (sv.state != ss_loading)
2306                                 {
2307                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2308                                         MSG_WriteShort(&sv.reliable_datagram, i);
2309                                         MSG_WriteString(&sv.reliable_datagram, filename);
2310                                 }
2311                                 return i;
2312                         }
2313                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2314                         return 0;
2315                 }
2316                 if (!strcmp(sv.model_precache[i], filename))
2317                         return i;
2318         }
2319         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2320         return 0;
2321 }
2322
2323 /*
2324 ================
2325 SV_SoundIndex
2326
2327 ================
2328 */
2329 int SV_SoundIndex(const char *s, int precachemode)
2330 {
2331         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);
2332         char filename[MAX_QPATH];
2333         if (!s || !*s)
2334                 return 0;
2335         // testing
2336         //if (precachemode == 2)
2337         //      return 0;
2338         strlcpy(filename, s, sizeof(filename));
2339         for (i = 1;i < limit;i++)
2340         {
2341                 if (!sv.sound_precache[i][0])
2342                 {
2343                         if (precachemode)
2344                         {
2345                                 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))
2346                                 {
2347                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2348                                         return 0;
2349                                 }
2350                                 if (precachemode == 1)
2351                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2352                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2353                                 if (sv.state != ss_loading)
2354                                 {
2355                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2356                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2357                                         MSG_WriteString(&sv.reliable_datagram, filename);
2358                                 }
2359                                 return i;
2360                         }
2361                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2362                         return 0;
2363                 }
2364                 if (!strcmp(sv.sound_precache[i], filename))
2365                         return i;
2366         }
2367         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2368         return 0;
2369 }
2370
2371 /*
2372 ================
2373 SV_ParticleEffectIndex
2374
2375 ================
2376 */
2377 int SV_ParticleEffectIndex(const char *name)
2378 {
2379         int i, argc, linenumber, effectnameindex;
2380         fs_offset_t filesize;
2381         unsigned char *filedata;
2382         const char *text, *textstart, *textend;
2383         char argv[16][1024];
2384         if (!sv.particleeffectnamesloaded)
2385         {
2386                 sv.particleeffectnamesloaded = true;
2387                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2388                 for (i = 0;i < EFFECT_TOTAL;i++)
2389                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2390                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2391                 if (filedata)
2392                 {
2393                         textstart = (const char *)filedata;
2394                         textend = (const char *)filedata + filesize;
2395                         text = textstart;
2396                         for (linenumber = 1;;linenumber++)
2397                         {
2398                                 argc = 0;
2399                                 for (;;)
2400                                 {
2401                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2402                                                 break;
2403                                         if (argc < 16)
2404                                         {
2405                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2406                                                 argc++;
2407                                         }
2408                                 }
2409                                 if (com_token[0] == 0)
2410                                         break; // if the loop exited and it's not a \n, it's EOF
2411                                 if (argc < 1)
2412                                         continue;
2413                                 if (!strcmp(argv[0], "effect"))
2414                                 {
2415                                         if (argc == 2)
2416                                         {
2417                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2418                                                 {
2419                                                         if (sv.particleeffectname[effectnameindex][0])
2420                                                         {
2421                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2422                                                                         break;
2423                                                         }
2424                                                         else
2425                                                         {
2426                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2427                                                                 break;
2428                                                         }
2429                                                 }
2430                                                 // if we run out of names, abort
2431                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2432                                                 {
2433                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2434                                                         break;
2435                                                 }
2436                                         }
2437                                 }
2438                         }
2439                         Mem_Free(filedata);
2440                 }
2441         }
2442         // search for the name
2443         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2444                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2445                         return effectnameindex;
2446         // return 0 if we couldn't find it
2447         return 0;
2448 }
2449
2450 /*
2451 ================
2452 SV_CreateBaseline
2453
2454 ================
2455 */
2456 static void SV_CreateBaseline (void)
2457 {
2458         int i, entnum, large;
2459         prvm_edict_t *svent;
2460
2461         // LordHavoc: clear *all* states (note just active ones)
2462         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2463         {
2464                 // get the current server version
2465                 svent = PRVM_EDICT_NUM(entnum);
2466
2467                 // LordHavoc: always clear state values, whether the entity is in use or not
2468                 svent->priv.server->baseline = defaultstate;
2469
2470                 if (svent->priv.server->free)
2471                         continue;
2472                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2473                         continue;
2474
2475                 // create entity baseline
2476                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2477                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2478                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2479                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2480                 if (entnum > 0 && entnum <= svs.maxclients)
2481                 {
2482                         svent->priv.server->baseline.colormap = entnum;
2483                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2484                 }
2485                 else
2486                 {
2487                         svent->priv.server->baseline.colormap = 0;
2488                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2489                 }
2490
2491                 large = false;
2492                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2493                 {
2494                         large = true;
2495                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2496                                 large = false;
2497                 }
2498
2499                 // add to the message
2500                 if (large)
2501                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2502                 else
2503                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2504                 MSG_WriteShort (&sv.signon, entnum);
2505
2506                 if (large)
2507                 {
2508                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2509                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2510                 }
2511                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2512                 {
2513                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2514                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2515                 }
2516                 else
2517                 {
2518                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2519                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2520                 }
2521                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2522                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2523                 for (i=0 ; i<3 ; i++)
2524                 {
2525                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2526                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2527                 }
2528         }
2529 }
2530
2531
2532 /*
2533 ================
2534 SV_SaveSpawnparms
2535
2536 Grabs the current state of each client for saving across the
2537 transition to another level
2538 ================
2539 */
2540 void SV_SaveSpawnparms (void)
2541 {
2542         int             i, j;
2543
2544         svs.serverflags = (int)prog->globals.server->serverflags;
2545
2546         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2547         {
2548                 if (!host_client->active)
2549                         continue;
2550
2551         // call the progs to get default spawn parms for the new client
2552                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2553                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2554                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2555                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2556         }
2557 }
2558
2559 /*
2560 ================
2561 SV_SpawnServer
2562
2563 This is called at the start of each level
2564 ================
2565 */
2566
2567 void SV_SpawnServer (const char *server)
2568 {
2569         prvm_edict_t *ent;
2570         int i;
2571         char *entities;
2572         dp_model_t *worldmodel;
2573         char modelname[sizeof(sv.modelname)];
2574
2575         Con_DPrintf("SpawnServer: %s\n", server);
2576
2577         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2578
2579         if (!FS_FileExists(modelname))
2580         {
2581                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
2582                 return;
2583         }
2584
2585         if (cls.state != ca_dedicated)
2586         {
2587                 SCR_BeginLoadingPlaque();
2588                 S_StopAllSounds();
2589         }
2590
2591         if(sv.active)
2592         {
2593                 SV_VM_Begin();
2594                 if(prog->funcoffsets.SV_Shutdown)
2595                 {
2596                         func_t s = prog->funcoffsets.SV_Shutdown;
2597                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
2598                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
2599                 }
2600                 SV_VM_End();
2601         }
2602
2603         worldmodel = Mod_ForName(modelname, false, true, true);
2604         if (!worldmodel || !worldmodel->TraceBox)
2605         {
2606                 Con_Printf("Couldn't load map %s\n", modelname);
2607                 return;
2608         }
2609
2610         // let's not have any servers with no name
2611         if (hostname.string[0] == 0)
2612                 Cvar_Set ("hostname", "UNNAMED");
2613         scr_centertime_off = 0;
2614
2615         svs.changelevel_issued = false;         // now safe to issue another
2616
2617         // make the map a required file for clients
2618         Curl_ClearRequirements();
2619         Curl_RequireFile(modelname);
2620
2621 //
2622 // tell all connected clients that we are going to a new level
2623 //
2624         if (sv.active)
2625         {
2626                 client_t *client;
2627                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2628                 {
2629                         if (client->netconnection)
2630                         {
2631                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2632                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2633                         }
2634                 }
2635         }
2636         else
2637         {
2638                 // open server port
2639                 NetConn_OpenServerPorts(true);
2640         }
2641
2642 //
2643 // make cvars consistant
2644 //
2645         if (coop.integer)
2646                 Cvar_SetValue ("deathmatch", 0);
2647         // LordHavoc: it can be useful to have skills outside the range 0-3...
2648         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2649         //Cvar_SetValue ("skill", (float)current_skill);
2650         current_skill = (int)(skill.value + 0.5);
2651
2652 //
2653 // set up the new server
2654 //
2655         memset (&sv, 0, sizeof(sv));
2656         // if running a local client, make sure it doesn't try to access the last
2657         // level's data which is no longer valiud
2658         cls.signon = 0;
2659
2660         if(*sv_random_seed.string)
2661         {
2662                 srand(sv_random_seed.integer);
2663                 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);
2664         }
2665
2666         SV_VM_Setup();
2667
2668         sv.active = true;
2669
2670         strlcpy (sv.name, server, sizeof (sv.name));
2671
2672         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2673         if (sv.protocol == PROTOCOL_UNKNOWN)
2674         {
2675                 char buffer[1024];
2676                 Protocol_Names(buffer, sizeof(buffer));
2677                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2678                 sv.protocol = PROTOCOL_QUAKE;
2679         }
2680
2681         SV_VM_Begin();
2682
2683 // load progs to get entity field count
2684         //PR_LoadProgs ( sv_progs.string );
2685
2686         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2687         sv.datagram.cursize = 0;
2688         sv.datagram.data = sv.datagram_buf;
2689
2690         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2691         sv.reliable_datagram.cursize = 0;
2692         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2693
2694         sv.signon.maxsize = sizeof(sv.signon_buf);
2695         sv.signon.cursize = 0;
2696         sv.signon.data = sv.signon_buf;
2697
2698 // leave slots at start for clients only
2699         //prog->num_edicts = svs.maxclients+1;
2700
2701         sv.state = ss_loading;
2702         prog->allowworldwrites = true;
2703         sv.paused = false;
2704
2705         prog->globals.server->time = sv.time = 1.0;
2706
2707         Mod_ClearUsed();
2708         worldmodel->used = true;
2709
2710         strlcpy (sv.name, server, sizeof (sv.name));
2711         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2712         sv.worldmodel = worldmodel;
2713         sv.models[1] = sv.worldmodel;
2714
2715 //
2716 // clear world interaction links
2717 //
2718         World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
2719
2720         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2721
2722         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2723         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2724         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2725         {
2726                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2727                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2728         }
2729
2730 //
2731 // load the rest of the entities
2732 //
2733         // AK possible hack since num_edicts is still 0
2734         ent = PRVM_EDICT_NUM(0);
2735         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2736         ent->priv.server->free = false;
2737         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2738         ent->fields.server->modelindex = 1;             // world model
2739         ent->fields.server->solid = SOLID_BSP;
2740         ent->fields.server->movetype = MOVETYPE_PUSH;
2741         VectorCopy(sv.world.mins, ent->fields.server->mins);
2742         VectorCopy(sv.world.maxs, ent->fields.server->maxs);
2743         VectorCopy(sv.world.mins, ent->fields.server->absmin);
2744         VectorCopy(sv.world.maxs, ent->fields.server->absmax);
2745
2746         if (coop.value)
2747                 prog->globals.server->coop = coop.integer;
2748         else
2749                 prog->globals.server->deathmatch = deathmatch.integer;
2750
2751         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2752
2753 // serverflags are for cross level information (sigils)
2754         prog->globals.server->serverflags = svs.serverflags;
2755
2756         // we need to reset the spawned flag on all connected clients here so that
2757         // their thinks don't run during startup (before PutClientInServer)
2758         // we also need to set up the client entities now
2759         // and we need to set the ->edict pointers to point into the progs edicts
2760         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2761         {
2762                 host_client->spawned = false;
2763                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2764                 PRVM_ED_ClearEdict(host_client->edict);
2765         }
2766
2767         // load replacement entity file if found
2768         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2769         {
2770                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2771                 PRVM_ED_LoadFromFile (entities);
2772                 Mem_Free(entities);
2773         }
2774         else
2775                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2776
2777
2778         // LordHavoc: clear world angles (to fix e3m3.bsp)
2779         VectorClear(prog->edicts->fields.server->angles);
2780
2781 // all setup is completed, any further precache statements are errors
2782         sv.state = ss_active;
2783         prog->allowworldwrites = false;
2784
2785 // run two frames to allow everything to settle
2786         for (i = 0;i < 2;i++)
2787         {
2788                 sv.frametime = 0.1;
2789                 SV_Physics ();
2790         }
2791
2792         Mod_PurgeUnused();
2793
2794 // create a baseline for more efficient communications
2795         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)
2796                 SV_CreateBaseline ();
2797
2798 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2799         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2800         {
2801                 host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
2802                 if (!host_client->active)
2803                         continue;
2804                 if (host_client->netconnection)
2805                         SV_SendServerinfo(host_client);
2806                 else
2807                 {
2808                         int j;
2809                         // if client is a botclient coming from a level change, we need to
2810                         // set up client info that normally requires networking
2811
2812                         // copy spawn parms out of the client_t
2813                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2814                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2815
2816                         // call the spawn function
2817                         host_client->clientconnectcalled = true;
2818                         prog->globals.server->time = sv.time;
2819                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2820                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2821                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2822                         host_client->spawned = true;
2823                 }
2824         }
2825
2826         Con_DPrint("Server spawned.\n");
2827         NetConn_Heartbeat (2);
2828
2829         SV_VM_End();
2830 }
2831
2832 /////////////////////////////////////////////////////
2833 // SV VM stuff
2834
2835 static void SV_VM_CB_BeginIncreaseEdicts(void)
2836 {
2837         // links don't survive the transition, so unlink everything
2838         World_UnlinkAll(&sv.world);
2839 }
2840
2841 static void SV_VM_CB_EndIncreaseEdicts(void)
2842 {
2843         int i;
2844         prvm_edict_t *ent;
2845
2846         // link every entity except world
2847         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2848                 if (!ent->priv.server->free)
2849                         SV_LinkEdict(ent, false);
2850 }
2851
2852 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2853 {
2854         // LordHavoc: for consistency set these here
2855         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2856
2857         e->priv.server->move = false; // don't move on first frame
2858
2859         if (num >= 0 && num < svs.maxclients)
2860         {
2861                 prvm_eval_t *val;
2862                 // set colormap and team on newly created player entity
2863                 e->fields.server->colormap = num + 1;
2864                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
2865                 // set netname/clientcolors back to client values so that
2866                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
2867                 // reset them
2868                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
2869                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
2870                         val->_float = svs.clients[num].colors;
2871                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
2872                 if( prog->fieldoffsets.playermodel >= 0 )
2873                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
2874                 if( prog->fieldoffsets.playerskin >= 0 )
2875                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
2876                 // Assign netaddress (IP Address, etc)
2877                 if(prog->fieldoffsets.netaddress >= 0)
2878                 { // Valid Field; Process
2879                         if(svs.clients[num].netconnection != NULL)
2880                         {// Valid Address; Assign
2881                                 // Acquire Readable Address
2882                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
2883                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
2884                         }
2885                         else
2886                                 // Invalid / Bot
2887                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
2888                 }
2889         }
2890 }
2891
2892 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
2893 {
2894         int i;
2895         int e;
2896
2897         World_UnlinkEdict(ed);          // unlink from world bsp
2898
2899         ed->fields.server->model = 0;
2900         ed->fields.server->takedamage = 0;
2901         ed->fields.server->modelindex = 0;
2902         ed->fields.server->colormap = 0;
2903         ed->fields.server->skin = 0;
2904         ed->fields.server->frame = 0;
2905         VectorClear(ed->fields.server->origin);
2906         VectorClear(ed->fields.server->angles);
2907         ed->fields.server->nextthink = -1;
2908         ed->fields.server->solid = 0;
2909
2910         // make sure csqc networking is aware of the removed entity
2911         e = PRVM_NUM_FOR_EDICT(ed);
2912         sv.csqcentityversion[e] = 0;
2913         for (i = 0;i < svs.maxclients;i++)
2914         {
2915                 if (svs.clients[i].csqcentityscope[e])
2916                         svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
2917                 svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
2918         }
2919 }
2920
2921 static void SV_VM_CB_CountEdicts(void)
2922 {
2923         int             i;
2924         prvm_edict_t    *ent;
2925         int             active, models, solid, step;
2926
2927         active = models = solid = step = 0;
2928         for (i=0 ; i<prog->num_edicts ; i++)
2929         {
2930                 ent = PRVM_EDICT_NUM(i);
2931                 if (ent->priv.server->free)
2932                         continue;
2933                 active++;
2934                 if (ent->fields.server->solid)
2935                         solid++;
2936                 if (ent->fields.server->model)
2937                         models++;
2938                 if (ent->fields.server->movetype == MOVETYPE_STEP)
2939                         step++;
2940         }
2941
2942         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
2943         Con_Printf("active    :%3i\n", active);
2944         Con_Printf("view      :%3i\n", models);
2945         Con_Printf("touch     :%3i\n", solid);
2946         Con_Printf("step      :%3i\n", step);
2947 }
2948
2949 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
2950 {
2951         // remove things from different skill levels or deathmatch
2952         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
2953         {
2954                 if (deathmatch.integer)
2955                 {
2956                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
2957                         {
2958                                 return false;
2959                         }
2960                 }
2961                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
2962                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
2963                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
2964                 {
2965                         return false;
2966                 }
2967         }
2968         return true;
2969 }
2970
2971 static void SV_VM_Setup(void)
2972 {
2973         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
2974         size_t csprogsdatasize;
2975         PRVM_Begin;
2976         PRVM_InitProg( PRVM_SERVERPROG );
2977
2978         // allocate the mempools
2979         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
2980         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
2981         prog->builtins = vm_sv_builtins;
2982         prog->numbuiltins = vm_sv_numbuiltins;
2983         prog->headercrc = PROGHEADER_CRC;
2984         prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
2985         prog->max_edicts = 512;
2986         if (sv.protocol == PROTOCOL_QUAKE)
2987                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
2988         else if (sv.protocol == PROTOCOL_QUAKEDP)
2989                 prog->limit_edicts = 2048; // guessing
2990         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2991                 prog->limit_edicts = 2048; // guessing!
2992         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2993                 prog->limit_edicts = 4096; // guessing!
2994         else
2995                 prog->limit_edicts = MAX_EDICTS;
2996         prog->reserved_edicts = svs.maxclients;
2997         prog->edictprivate_size = sizeof(edict_engineprivate_t);
2998         prog->name = "server";
2999         prog->extensionstring = vm_sv_extensions;
3000         prog->loadintoworld = true;
3001
3002         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
3003         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
3004         prog->init_edict = SV_VM_CB_InitEdict;
3005         prog->free_edict = SV_VM_CB_FreeEdict;
3006         prog->count_edicts = SV_VM_CB_CountEdicts;
3007         prog->load_edict = SV_VM_CB_LoadEdict;
3008         prog->init_cmd = VM_SV_Cmd_Init;
3009         prog->reset_cmd = VM_SV_Cmd_Reset;
3010         prog->error_cmd = Host_Error;
3011
3012         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
3013         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
3014
3015         // some mods compiled with scrambling compilers lack certain critical
3016         // global names and field names such as "self" and "time" and "nextthink"
3017         // so we have to set these offsets manually, matching the entvars_t
3018         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
3019         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
3020         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
3021         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
3022         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
3023         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
3024         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
3025         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
3026         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
3027         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
3028         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
3029         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
3030         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
3031         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
3032         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
3033         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
3034         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
3035         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
3036         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
3037         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
3038         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
3039         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
3040         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
3041         // OP_STATE is always supported on server (due to entvars_t)
3042         prog->flag |= PRVM_OP_STATE;
3043
3044         VM_CustomStats_Clear();//[515]: csqc
3045
3046         PRVM_End;
3047
3048         // 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
3049         sv.csqc_progname[0] = 0;
3050         sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
3051         sv.csqc_progsize = csprogsdatasize;
3052         if (sv.csqc_progsize > 0)
3053         {
3054                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
3055                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
3056         }
3057 }
3058
3059 void SV_VM_Begin(void)
3060 {
3061         PRVM_Begin;
3062         PRVM_SetProg( PRVM_SERVERPROG );
3063
3064         prog->globals.server->time = (float) sv.time;
3065 }
3066
3067 void SV_VM_End(void)
3068 {
3069         PRVM_End;
3070 }