sv_main.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // sv_main.c -- server main program
  21
  22 #include "quakedef.h"
  23 #include "libcurl.h"
  24
  25 static void SV_SaveEntFile_f(void);
  26 static void SV_StartDownload_f(void);
  27 static void SV_Download_f(void);
  28 static void SV_VM_Setup();
  29
  30 void VM_CustomStats_Clear (void);
  31 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
  32 void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int numstates, const entity_state_t *states);
  33
  34 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
  35 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
  36 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
  37 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
  38 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
  39 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
  40 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
  41 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
  42 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
  43 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
  44 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
  45
  46 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
  47 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
  48 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
  49 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
  50 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
  51 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
  52 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
  53 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
  54 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
  55 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
  56 cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "64", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
  57 cvar_t sv_checkforpacketsduringsleep = {0, "sv_checkforpacketsduringsleep", "0", "uses select() function to wait between frames which can be interrupted by packets being received, instead of Sleep()/usleep()/SDL_Sleep() functions which do not check for packets"};
  58 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
  59 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
  60 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
  61 cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "16", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
  62 cvar_t sv_cullentities_nevercullbmodels = {0, "sv_cullentities_nevercullbmodels", "0", "if enabled the clients are always notified of moving doors and lifts and other submodels of world (warning: eats a lot of network bandwidth on some levels!)"};
  63 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
  64 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
  65 cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "0", "somewhat slow but very tight culling of hidden entities, minimizes network traffic and makes wallhack cheats useless"};
  66 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  67 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  68 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
  69 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
  70 cvar_t sv_cullentities_trace_samples_extra = {0, "sv_cullentities_trace_samples_extra", "2", "number of samples to test for entity culling when the entity affects its surroundings by e.g. dlight"};
  71 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
  72 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
  73 cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
  74 cvar_t sv_entpatch = {0, "sv_entpatch", "1", "enables loading of .ent files to override entities in the bsp (for example Threewave CTF server pack contains .ent patch files enabling play of CTF on id1 maps)"};
  75 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "0", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
  76 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
  77 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
  78 cvar_t sv_gameplayfix_blowupfallenzombies = {0, "sv_gameplayfix_blowupfallenzombies", "1", "causes findradius to detect SOLID_NOT entities such as zombies and corpses on the floor, allowing splash damage to apply to them"};
  79 cvar_t sv_gameplayfix_droptofloorstartsolid = {0, "sv_gameplayfix_droptofloorstartsolid", "1", "prevents items and monsters that start in a solid area from falling out of the level (makes droptofloor treat trace_startsolid as an acceptable outcome)"};
  80 cvar_t sv_gameplayfix_findradiusdistancetobox = {0, "sv_gameplayfix_findradiusdistancetobox", "1", "causes findradius to check the distance to the corner of a box rather than the center of the box, makes findradius detect bmodels such as very large doors that would otherwise be unaffected by splash damage"};
  81 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
  82 cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
  83 cvar_t sv_gameplayfix_qwplayerphysics = {0, "sv_gameplayfix_qwplayerphysics", "1", "changes water jumping to make it easier to get out of water, and prevents friction on landing when bunnyhopping"};
  84 cvar_t sv_gameplayfix_setmodelrealbox = {0, "sv_gameplayfix_setmodelrealbox", "1", "fixes a bug in Quake that made setmodel always set the entity box to ('-16 -16 -16', '16 16 16') rather than properly checking the model box, breaks some poorly coded mods"};
  85 cvar_t sv_gameplayfix_stepdown = {0, "sv_gameplayfix_stepdown", "0", "attempts to step down stairs, not just up them (prevents the familiar thud..thud..thud.. when running down stairs and slopes)"};
  86 cvar_t sv_gameplayfix_stepwhilejumping = {0, "sv_gameplayfix_stepwhilejumping", "1", "applies step-up onto a ledge even while airborn, useful if you would otherwise just-miss the floor when running across small areas with gaps (for instance running across the moving platforms in dm2, or jumping to the megahealth and red armor in dm2 rather than using the bridge)"};
  87 cvar_t sv_gameplayfix_swiminbmodels = {0, "sv_gameplayfix_swiminbmodels", "1", "causes pointcontents (used to determine if you are in a liquid) to check bmodel entities as well as the world model, so you can swim around in (possibly moving) water bmodel entities"};
  88 cvar_t sv_gameplayfix_upwardvelocityclearsongroundflag = {0, "sv_gameplayfix_upwardvelocityclearsongroundflag", "1", "prevents monsters, items, and most other objects from being stuck to the floor when pushed around by damage, and other situations in mods"};
  89 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
  90 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
  91 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
  92 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
  93 cvar_t sv_maxairspeed = {0, "sv_maxairspeed", "30", "maximum speed a player can accelerate to when airborn (note that it is possible to completely stop by moving the opposite direction)"};
  94 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "10000", "upper limit on client rate cvar, should reflect your network connection quality"};
  95 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
  96 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
  97 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
  98 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
  99 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
 100 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
 101 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
 102 cvar_t sv_random_seed = {0, "sv_random_seed", "", "random seed; when set, on every map start this random seed is used to initialize the random number generator. Don't touch it unless for benchmarking or debugging"};
 103 cvar_t sv_ratelimitlocalplayer = {0, "sv_ratelimitlocalplayer", "0", "whether to apply rate limiting to the local player in a listen server (only useful for testing)"};
 104 cvar_t sv_sound_land = {0, "sv_sound_land", "demon/dland2.wav", "sound to play when MOVETYPE_STEP entity hits the ground at high speed (empty cvar disables the sound)"};
 105 cvar_t sv_sound_watersplash = {0, "sv_sound_watersplash", "misc/h2ohit1.wav", "sound to play when MOVETYPE_FLY/TOSS/BOUNCE/STEP entity enters or leaves water (empty cvar disables the sound)"};
 106 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
 107 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
 108 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
 109 cvar_t sv_wateraccelerate = {0, "sv_wateraccelerate", "-1", "rate at which a player accelerates to sv_maxspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
 110 cvar_t sv_waterfriction = {CVAR_NOTIFY, "sv_waterfriction","-1", "how fast you slow down, if less than 0 the sv_friction variable is used instead"};
 111 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.05", "how long a server frame is in seconds, 0.05 is 20fps server rate, 0.1 is 10fps (can not be set higher than 0.1), 0 runs as many server frames as possible (makes games against bots a little smoother, overwhelms network players)"};
 112 cvar_t teamplay = {CVAR_NOTIFY, "teamplay","0", "teamplay mode, values depend on mod but typically 0 = no teams, 1 = no team damage no self damage, 2 = team damage and self damage, some mods support 3 = no team damage but can damage self"};
 113 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
 114
 115 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 116 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 117 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 118 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 119 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 120 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
 121 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
 122 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
 123 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
 124 cvar_t temp1 = {0, "temp1","0", "general cvar for mods to use, in stock id1 this selects which death animation to use on players (0 = random death, other values select specific death scenes)"};
 125
 126 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
 127 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
 128 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
 129 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
 130 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
 131 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
 132 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
 133 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
 134 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
 135 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
 136 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
 137 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
 138 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
 139 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
 140 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
 141 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
 142 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
 143 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
 144 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
 145 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
 146 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 147
 148 server_t sv;
 149 server_static_t svs;
 150
 151 mempool_t *sv_mempool = NULL;
 152
 153 extern cvar_t slowmo;
 154 extern float            scr_centertime_off;
 155
 156 // MUST match effectnameindex_t in client.h
 157 static const char *standardeffectnames[EFFECT_TOTAL] =
 158 {
 159         "",
 160         "TE_GUNSHOT",
 161         "TE_GUNSHOTQUAD",
 162         "TE_SPIKE",
 163         "TE_SPIKEQUAD",
 164         "TE_SUPERSPIKE",
 165         "TE_SUPERSPIKEQUAD",
 166         "TE_WIZSPIKE",
 167         "TE_KNIGHTSPIKE",
 168         "TE_EXPLOSION",
 169         "TE_EXPLOSIONQUAD",
 170         "TE_TAREXPLOSION",
 171         "TE_TELEPORT",
 172         "TE_LAVASPLASH",
 173         "TE_SMALLFLASH",
 174         "TE_FLAMEJET",
 175         "EF_FLAME",
 176         "TE_BLOOD",
 177         "TE_SPARK",
 178         "TE_PLASMABURN",
 179         "TE_TEI_G3",
 180         "TE_TEI_SMOKE",
 181         "TE_TEI_BIGEXPLOSION",
 182         "TE_TEI_PLASMAHIT",
 183         "EF_STARDUST",
 184         "TR_ROCKET",
 185         "TR_GRENADE",
 186         "TR_BLOOD",
 187         "TR_WIZSPIKE",
 188         "TR_SLIGHTBLOOD",
 189         "TR_KNIGHTSPIKE",
 190         "TR_VORESPIKE",
 191         "TR_NEHAHRASMOKE",
 192         "TR_NEXUIZPLASMA",
 193         "TR_GLOWTRAIL",
 194         "SVC_PARTICLE"
 195 };
 196
 197 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
 198
 199 prvm_required_field_t reqfields[] =
 200 {
 201         {ev_entity, "cursor_trace_ent"},
 202         {ev_entity, "drawonlytoclient"},
 203         {ev_entity, "exteriormodeltoclient"},
 204         {ev_entity, "nodrawtoclient"},
 205         {ev_entity, "tag_entity"},
 206         {ev_entity, "viewmodelforclient"},
 207         {ev_float, "Version"},
 208         {ev_float, "alpha"},
 209         {ev_float, "ammo_cells1"},
 210         {ev_float, "ammo_lava_nails"},
 211         {ev_float, "ammo_multi_rockets"},
 212         {ev_float, "ammo_nails1"},
 213         {ev_float, "ammo_plasma"},
 214         {ev_float, "ammo_rockets1"},
 215         {ev_float, "ammo_shells1"},
 216         {ev_float, "button3"},
 217         {ev_float, "button4"},
 218         {ev_float, "button5"},
 219         {ev_float, "button6"},
 220         {ev_float, "button7"},
 221         {ev_float, "button8"},
 222         {ev_float, "button9"},
 223         {ev_float, "button10"},
 224         {ev_float, "button11"},
 225         {ev_float, "button12"},
 226         {ev_float, "button13"},
 227         {ev_float, "button14"},
 228         {ev_float, "button15"},
 229         {ev_float, "button16"},
 230         {ev_float, "buttonchat"},
 231         {ev_float, "buttonuse"},
 232         {ev_float, "clientcolors"},
 233         {ev_float, "cursor_active"},
 234         {ev_float, "disableclientprediction"},
 235         {ev_float, "fullbright"},
 236         {ev_float, "glow_color"},
 237         {ev_float, "glow_size"},
 238         {ev_float, "glow_trail"},
 239         {ev_float, "gravity"},
 240         {ev_float, "idealpitch"},
 241         {ev_float, "items2"},
 242         {ev_float, "light_lev"},
 243         {ev_float, "modelflags"},
 244         {ev_float, "pflags"},
 245         {ev_float, "ping"},
 246         {ev_float, "pitch_speed"},
 247         {ev_float, "pmodel"},
 248         {ev_float, "renderamt"}, // HalfLife support
 249         {ev_float, "rendermode"}, // HalfLife support
 250         {ev_float, "scale"},
 251         {ev_float, "style"},
 252         {ev_float, "tag_index"},
 253         {ev_float, "viewzoom"},
 254         {ev_function, "SendEntity"},
 255         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
 256         {ev_function, "customizeentityforclient"},
 257         {ev_string, "netaddress"},
 258         {ev_string, "playermodel"},
 259         {ev_string, "playerskin"},
 260         {ev_vector, "color"},
 261         {ev_vector, "colormod"},
 262         {ev_vector, "cursor_screen"},
 263         {ev_vector, "cursor_trace_endpos"},
 264         {ev_vector, "cursor_trace_start"},
 265         {ev_vector, "movement"},
 266         {ev_vector, "punchvector"},
 267 };
 268
 269
 270
 271 //============================================================================
 272
 273 void SV_AreaStats_f(void)
 274 {
 275         World_PrintAreaStats(&sv.world, "server");
 276 }
 277
 278 /*
 279 ===============
 280 SV_Init
 281 ===============
 282 */
 283 void SV_Init (void)
 284 {
 285         // init the csqc progs cvars, since they are updated/used by the server code
 286         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
 287         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
 288         extern cvar_t csqc_progcrc;
 289         extern cvar_t csqc_progsize;
 290         Cvar_RegisterVariable (&csqc_progname);
 291         Cvar_RegisterVariable (&csqc_progcrc);
 292         Cvar_RegisterVariable (&csqc_progsize);
 293
 294         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
 295         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
 296         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
 297         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
 298
 299         Cvar_RegisterVariable (&coop);
 300         Cvar_RegisterVariable (&deathmatch);
 301         Cvar_RegisterVariable (&fraglimit);
 302         Cvar_RegisterVariable (&gamecfg);
 303         Cvar_RegisterVariable (&noexit);
 304         Cvar_RegisterVariable (&nomonsters);
 305         Cvar_RegisterVariable (&pausable);
 306         Cvar_RegisterVariable (&pr_checkextension);
 307         Cvar_RegisterVariable (&samelevel);
 308         Cvar_RegisterVariable (&skill);
 309         Cvar_RegisterVariable (&slowmo);
 310         Cvar_RegisterVariable (&sv_accelerate);
 311         Cvar_RegisterVariable (&sv_aim);
 312         Cvar_RegisterVariable (&sv_airaccel_qw);
 313         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
 314         Cvar_RegisterVariable (&sv_airaccelerate);
 315         Cvar_RegisterVariable (&sv_allowdownloads);
 316         Cvar_RegisterVariable (&sv_allowdownloads_archive);
 317         Cvar_RegisterVariable (&sv_allowdownloads_config);
 318         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
 319         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
 320         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
 321         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
 322         Cvar_RegisterVariable (&sv_clmovement_enable);
 323         Cvar_RegisterVariable (&sv_clmovement_minping);
 324         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
 325         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
 326         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
 327         Cvar_RegisterVariable (&sv_cullentities_pvs);
 328         Cvar_RegisterVariable (&sv_cullentities_stats);
 329         Cvar_RegisterVariable (&sv_cullentities_trace);
 330         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
 331         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
 332         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
 333         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
 334         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
 335         Cvar_RegisterVariable (&sv_debugmove);
 336         Cvar_RegisterVariable (&sv_echobprint);
 337         Cvar_RegisterVariable (&sv_edgefriction);
 338         Cvar_RegisterVariable (&sv_entpatch);
 339         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
 340         Cvar_RegisterVariable (&sv_freezenonclients);
 341         Cvar_RegisterVariable (&sv_friction);
 342         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
 343         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
 344         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
 345         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
 346         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
 347         Cvar_RegisterVariable (&sv_gameplayfix_qwplayerphysics);
 348         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
 349         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
 350         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
 351         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
 352         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
 353         Cvar_RegisterVariable (&sv_gravity);
 354         Cvar_RegisterVariable (&sv_idealpitchscale);
 355         Cvar_RegisterVariable (&sv_jumpstep);
 356         Cvar_RegisterVariable (&sv_jumpvelocity);
 357         Cvar_RegisterVariable (&sv_maxairspeed);
 358         Cvar_RegisterVariable (&sv_maxrate);
 359         Cvar_RegisterVariable (&sv_maxspeed);
 360         Cvar_RegisterVariable (&sv_maxvelocity);
 361         Cvar_RegisterVariable (&sv_newflymove);
 362         Cvar_RegisterVariable (&sv_nostep);
 363         Cvar_RegisterVariable (&sv_playerphysicsqc);
 364         Cvar_RegisterVariable (&sv_progs);
 365         Cvar_RegisterVariable (&sv_protocolname);
 366         Cvar_RegisterVariable (&sv_random_seed);
 367         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
 368         Cvar_RegisterVariable (&sv_sound_land);
 369         Cvar_RegisterVariable (&sv_sound_watersplash);
 370         Cvar_RegisterVariable (&sv_stepheight);
 371         Cvar_RegisterVariable (&sv_stopspeed);
 372         Cvar_RegisterVariable (&sv_wallfriction);
 373         Cvar_RegisterVariable (&sv_wateraccelerate);
 374         Cvar_RegisterVariable (&sv_waterfriction);
 375         Cvar_RegisterVariable (&sys_ticrate);
 376         Cvar_RegisterVariable (&teamplay);
 377         Cvar_RegisterVariable (&timelimit);
 378
 379         Cvar_RegisterVariable (&saved1);
 380         Cvar_RegisterVariable (&saved2);
 381         Cvar_RegisterVariable (&saved3);
 382         Cvar_RegisterVariable (&saved4);
 383         Cvar_RegisterVariable (&savedgamecfg);
 384         Cvar_RegisterVariable (&scratch1);
 385         Cvar_RegisterVariable (&scratch2);
 386         Cvar_RegisterVariable (&scratch3);
 387         Cvar_RegisterVariable (&scratch4);
 388         Cvar_RegisterVariable (&temp1);
 389
 390         // LordHavoc: Nehahra uses these to pass data around cutscene demos
 391         if (gamemode == GAME_NEHAHRA)
 392         {
 393                 Cvar_RegisterVariable (&nehx00);
 394                 Cvar_RegisterVariable (&nehx01);
 395                 Cvar_RegisterVariable (&nehx02);
 396                 Cvar_RegisterVariable (&nehx03);
 397                 Cvar_RegisterVariable (&nehx04);
 398                 Cvar_RegisterVariable (&nehx05);
 399                 Cvar_RegisterVariable (&nehx06);
 400                 Cvar_RegisterVariable (&nehx07);
 401                 Cvar_RegisterVariable (&nehx08);
 402                 Cvar_RegisterVariable (&nehx09);
 403                 Cvar_RegisterVariable (&nehx10);
 404                 Cvar_RegisterVariable (&nehx11);
 405                 Cvar_RegisterVariable (&nehx12);
 406                 Cvar_RegisterVariable (&nehx13);
 407                 Cvar_RegisterVariable (&nehx14);
 408                 Cvar_RegisterVariable (&nehx15);
 409                 Cvar_RegisterVariable (&nehx16);
 410                 Cvar_RegisterVariable (&nehx17);
 411                 Cvar_RegisterVariable (&nehx18);
 412                 Cvar_RegisterVariable (&nehx19);
 413         }
 414         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
 415
 416         // any special defaults for gamemodes go here
 417         if (gamemode == GAME_HIPNOTIC)
 418         {
 419                 // hipnotic mission pack has issues in their 'friendly monster' ai, which seem to attempt to attack themselves for some reason when findradius() returns non-solid entities.
 420                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
 421         }
 422
 423         sv_mempool = Mem_AllocPool("server", 0, NULL);
 424 }
 425
 426 static void SV_SaveEntFile_f(void)
 427 {
 428         char basename[MAX_QPATH];
 429         if (!sv.active || !sv.worldmodel)
 430         {
 431                 Con_Print("Not running a server\n");
 432                 return;
 433         }
 434         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
 435         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
 436 }
 437
 438
 439 /*
 440 =============================================================================
 441
 442 EVENT MESSAGES
 443
 444 =============================================================================
 445 */
 446
 447 /*
 448 ==================
 449 SV_StartParticle
 450
 451 Make sure the event gets sent to all clients
 452 ==================
 453 */
 454 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
 455 {
 456         int i;
 457
 458         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
 459                 return;
 460         MSG_WriteByte (&sv.datagram, svc_particle);
 461         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 462         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 463         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 464         for (i=0 ; i<3 ; i++)
 465                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
 466         MSG_WriteByte (&sv.datagram, count);
 467         MSG_WriteByte (&sv.datagram, color);
 468         SV_FlushBroadcastMessages();
 469 }
 470
 471 /*
 472 ==================
 473 SV_StartEffect
 474
 475 Make sure the event gets sent to all clients
 476 ==================
 477 */
 478 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 479 {
 480         if (modelindex >= 256 || startframe >= 256)
 481         {
 482                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 483                         return;
 484                 MSG_WriteByte (&sv.datagram, svc_effect2);
 485                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 486                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 487                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 488                 MSG_WriteShort (&sv.datagram, modelindex);
 489                 MSG_WriteShort (&sv.datagram, startframe);
 490                 MSG_WriteByte (&sv.datagram, framecount);
 491                 MSG_WriteByte (&sv.datagram, framerate);
 492         }
 493         else
 494         {
 495                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 496                         return;
 497                 MSG_WriteByte (&sv.datagram, svc_effect);
 498                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 499                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 500                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 501                 MSG_WriteByte (&sv.datagram, modelindex);
 502                 MSG_WriteByte (&sv.datagram, startframe);
 503                 MSG_WriteByte (&sv.datagram, framecount);
 504                 MSG_WriteByte (&sv.datagram, framerate);
 505         }
 506         SV_FlushBroadcastMessages();
 507 }
 508
 509 /*
 510 ==================
 511 SV_StartSound
 512
 513 Each entity can have eight independant sound sources, like voice,
 514 weapon, feet, etc.
 515
 516 Channel 0 is an auto-allocate channel, the others override anything
 517 already running on that entity/channel pair.
 518
 519 An attenuation of 0 will play full volume everywhere in the level.
 520 Larger attenuations will drop off.  (max 4 attenuation)
 521
 522 ==================
 523 */
 524 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
 525 {
 526         int sound_num, field_mask, i, ent;
 527
 528         if (volume < 0 || volume > 255)
 529         {
 530                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
 531                 return;
 532         }
 533
 534         if (attenuation < 0 || attenuation > 4)
 535         {
 536                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
 537                 return;
 538         }
 539
 540         if (channel < 0 || channel > 7)
 541         {
 542                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
 543                 return;
 544         }
 545
 546         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 547                 return;
 548
 549 // find precache number for sound
 550         sound_num = SV_SoundIndex(sample, 1);
 551         if (!sound_num)
 552                 return;
 553
 554         ent = PRVM_NUM_FOR_EDICT(entity);
 555
 556         field_mask = 0;
 557         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 558                 field_mask |= SND_VOLUME;
 559         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 560                 field_mask |= SND_ATTENUATION;
 561         if (ent >= 8192)
 562                 field_mask |= SND_LARGEENTITY;
 563         if (sound_num >= 256 || channel >= 8)
 564                 field_mask |= SND_LARGESOUND;
 565
 566 // directed messages go only to the entity they are targeted on
 567         MSG_WriteByte (&sv.datagram, svc_sound);
 568         MSG_WriteByte (&sv.datagram, field_mask);
 569         if (field_mask & SND_VOLUME)
 570                 MSG_WriteByte (&sv.datagram, volume);
 571         if (field_mask & SND_ATTENUATION)
 572                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 573         if (field_mask & SND_LARGEENTITY)
 574         {
 575                 MSG_WriteShort (&sv.datagram, ent);
 576                 MSG_WriteByte (&sv.datagram, channel);
 577         }
 578         else
 579                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 580         if (field_mask & SND_LARGESOUND)
 581                 MSG_WriteShort (&sv.datagram, sound_num);
 582         else
 583                 MSG_WriteByte (&sv.datagram, sound_num);
 584         for (i = 0;i < 3;i++)
 585                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
 586         SV_FlushBroadcastMessages();
 587 }
 588
 589 /*
 590 ==============================================================================
 591
 592 CLIENT SPAWNING
 593
 594 ==============================================================================
 595 */
 596
 597 /*
 598 ================
 599 SV_SendServerinfo
 600
 601 Sends the first message from the server to a connected client.
 602 This will be sent on the initial connection and upon each server load.
 603 ================
 604 */
 605 void SV_SendServerinfo (client_t *client)
 606 {
 607         int i;
 608         char message[128];
 609
 610         // we know that this client has a netconnection and thus is not a bot
 611
 612         // edicts get reallocated on level changes, so we need to update it here
 613         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
 614
 615         // clear cached stuff that depends on the level
 616         client->weaponmodel[0] = 0;
 617         client->weaponmodelindex = 0;
 618
 619         // LordHavoc: clear entityframe tracking
 620         client->latestframenum = 0;
 621
 622         if (client->entitydatabase)
 623                 EntityFrame_FreeDatabase(client->entitydatabase);
 624         if (client->entitydatabase4)
 625                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 626         if (client->entitydatabase5)
 627                 EntityFrame5_FreeDatabase(client->entitydatabase5);
 628
 629         memset(client->stats, 0, sizeof(client->stats));
 630         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
 631
 632         if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE)
 633         {
 634                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
 635                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
 636                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
 637                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
 638                 else
 639                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
 640         }
 641
 642         // reset csqc entity versions
 643         memset(client->csqcentityversion, 0, sizeof(client->csqcentityversion));
 644
 645         SZ_Clear (&client->netconnection->message);
 646         MSG_WriteByte (&client->netconnection->message, svc_print);
 647         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
 648         MSG_WriteString (&client->netconnection->message,message);
 649
 650         //[515]: init csprogs according to version of svprogs, check the crc, etc.
 651         if (sv.csqc_progname[0])
 652         {
 653                 prvm_eval_t *val;
 654                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
 655                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 656                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
 657                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 658                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
 659                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 660                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
 661                 //[515]: init stufftext string (it is sent before svc_serverinfo)
 662                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
 663                 if (val)
 664                 {
 665                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 666                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
 667                 }
 668         }
 669
 670         if (sv_allowdownloads.integer)
 671         {
 672                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 673                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1");
 674         }
 675
 676         // send at this time so it's guaranteed to get executed at the right time
 677         {
 678                 client_t *save;
 679                 save = host_client;
 680                 host_client = client;
 681                 Curl_SendRequirements();
 682                 host_client = save;
 683         }
 684
 685         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
 686         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
 687         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
 688
 689         if (!coop.integer && deathmatch.integer)
 690                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
 691         else
 692                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
 693
 694         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
 695
 696         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
 697                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
 698         MSG_WriteByte (&client->netconnection->message, 0);
 699
 700         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
 701                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
 702         MSG_WriteByte (&client->netconnection->message, 0);
 703
 704 // send music
 705         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
 706         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 707         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 708
 709 // set view
 710         MSG_WriteByte (&client->netconnection->message, svc_setview);
 711         MSG_WriteShort (&client->netconnection->message, PRVM_NUM_FOR_EDICT(client->edict));
 712
 713         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
 714         MSG_WriteByte (&client->netconnection->message, 1);
 715
 716         client->spawned = false;                // need prespawn, spawn, etc
 717
 718         // clear movement info until client enters the new level properly
 719         memset(&client->cmd, 0, sizeof(client->cmd));
 720         client->movesequence = 0;
 721 #ifdef NUM_PING_TIMES
 722         for (i = 0;i < NUM_PING_TIMES;i++)
 723                 client->ping_times[i] = 0;
 724         client->num_pings = 0;
 725 #endif
 726         client->ping = 0;
 727 }
 728
 729 /*
 730 ================
 731 SV_ConnectClient
 732
 733 Initializes a client_t for a new net connection.  This will only be called
 734 once for a player each game, not once for each level change.
 735 ================
 736 */
 737 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 738 {
 739         client_t                *client;
 740         int                             i;
 741         float                   spawn_parms[NUM_SPAWN_PARMS];
 742
 743         client = svs.clients + clientnum;
 744
 745 // set up the client_t
 746         if (sv.loadgame)
 747                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 748         memset (client, 0, sizeof(*client));
 749         client->active = true;
 750         client->netconnection = netconnection;
 751
 752         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
 753
 754         strlcpy(client->name, "unconnected", sizeof(client->name));
 755         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
 756         client->spawned = false;
 757         client->edict = PRVM_EDICT_NUM(clientnum+1);
 758         if (client->netconnection)
 759                 client->netconnection->message.allowoverflow = true;            // we can catch it
 760         // prepare the unreliable message buffer
 761         client->unreliablemsg.data = client->unreliablemsg_data;
 762         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
 763         // updated by receiving "rate" command from client, this is also the default if not using a DP client
 764         client->rate = 1000000000;
 765         // no limits for local player
 766         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
 767                 client->rate = 1000000000;
 768         client->connecttime = realtime;
 769
 770         if (sv.loadgame)
 771                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 772         else
 773         {
 774                 // call the progs to get default spawn parms for the new client
 775                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
 776                 prog->globals.server->self = 0;
 777                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
 778                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 779                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
 780
 781                 // set up the entity for this client (including .colormap, .team, etc)
 782                 PRVM_ED_ClearEdict(client->edict);
 783         }
 784
 785         // don't call SendServerinfo for a fresh botclient because its fields have
 786         // not been set up by the qc yet
 787         if (client->netconnection)
 788                 SV_SendServerinfo (client);
 789         else
 790                 client->spawned = true;
 791 }
 792
 793
 794 /*
 795 ===============================================================================
 796
 797 FRAME UPDATES
 798
 799 ===============================================================================
 800 */
 801
 802 /*
 803 =============================================================================
 804
 805 The PVS must include a small area around the client to allow head bobbing
 806 or other small motion on the client side.  Otherwise, a bob might cause an
 807 entity that should be visible to not show up, especially when the bob
 808 crosses a waterline.
 809
 810 =============================================================================
 811 */
 812
 813 static qboolean SV_BuildEntityState (entity_state_t *cs, prvm_edict_t *ent, int enumber)
 814 {
 815         int i;
 816         unsigned int tagentity;
 817         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
 818         unsigned int customizeentityforclient;
 819         float f;
 820         vec3_t cullmins, cullmaxs, netcenter;
 821         model_t *model;
 822         prvm_eval_t *val;
 823
 824         // see if the customizeentityforclient extension is used by this entity
 825         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
 826         if (customizeentityforclient)
 827         {
 828                 prog->globals.server->self = enumber;
 829                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
 830                 PRVM_ExecuteProgram(customizeentityforclient, "customizeentityforclient: NULL function");
 831                 // customizeentityforclient can return false to reject the entity
 832                 if (!PRVM_G_FLOAT(OFS_RETURN))
 833                         return false;
 834         }
 835
 836         // this 2 billion unit check is actually to detect NAN origins
 837         // (we really don't want to send those)
 838         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
 839                 return false;
 840
 841         // EF_NODRAW prevents sending for any reason except for your own
 842         // client, so we must keep all clients in this superset
 843         effects = (unsigned)ent->fields.server->effects;
 844
 845         // we can omit invisible entities with no effects that are not clients
 846         // LordHavoc: this could kill tags attached to an invisible entity, I
 847         // just hope we never have to support that case
 848         i = (int)ent->fields.server->modelindex;
 849         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
 850
 851         flags = 0;
 852         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
 853         glowsize = (unsigned char)bound(0, i, 255);
 854         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
 855                 flags |= RENDER_GLOWTRAIL;
 856         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
 857                 flags |= RENDER_VIEWMODEL;
 858
 859         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
 860         light[0] = (unsigned short)bound(0, f, 65535);
 861         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
 862         light[1] = (unsigned short)bound(0, f, 65535);
 863         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
 864         light[2] = (unsigned short)bound(0, f, 65535);
 865         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
 866         light[3] = (unsigned short)bound(0, f, 65535);
 867         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
 868         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
 869
 870         if (gamemode == GAME_TENEBRAE)
 871         {
 872                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
 873                 if (effects & 16)
 874                 {
 875                         effects &= ~16;
 876                         lightpflags |= PFLAGS_FULLDYNAMIC;
 877                 }
 878                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
 879                 if (effects & 32)
 880                 {
 881                         effects &= ~32;
 882                         light[0] = (int)(0.2*256);
 883                         light[1] = (int)(1.0*256);
 884                         light[2] = (int)(0.2*256);
 885                         light[3] = 200;
 886                         lightpflags |= PFLAGS_FULLDYNAMIC;
 887                 }
 888         }
 889
 890         specialvisibilityradius = 0;
 891         if (lightpflags & PFLAGS_FULLDYNAMIC)
 892                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
 893         if (glowsize)
 894                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
 895         if (flags & RENDER_GLOWTRAIL)
 896                 specialvisibilityradius = max(specialvisibilityradius, 100);
 897         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
 898         {
 899                 if (effects & EF_BRIGHTFIELD)
 900                         specialvisibilityradius = max(specialvisibilityradius, 80);
 901                 if (effects & EF_MUZZLEFLASH)
 902                         specialvisibilityradius = max(specialvisibilityradius, 100);
 903                 if (effects & EF_BRIGHTLIGHT)
 904                         specialvisibilityradius = max(specialvisibilityradius, 400);
 905                 if (effects & EF_DIMLIGHT)
 906                         specialvisibilityradius = max(specialvisibilityradius, 200);
 907                 if (effects & EF_RED)
 908                         specialvisibilityradius = max(specialvisibilityradius, 200);
 909                 if (effects & EF_BLUE)
 910                         specialvisibilityradius = max(specialvisibilityradius, 200);
 911                 if (effects & EF_FLAME)
 912                         specialvisibilityradius = max(specialvisibilityradius, 250);
 913                 if (effects & EF_STARDUST)
 914                         specialvisibilityradius = max(specialvisibilityradius, 100);
 915         }
 916
 917         // don't send uninteresting entities
 918         if (enumber != sv.writeentitiestoclient_cliententitynumber)
 919         {
 920                 if (!modelindex && !specialvisibilityradius)
 921                         return false;
 922                 if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict == sv.writeentitiestoclient_cliententitynumber)
 923                         return false;
 924                 if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict != sv.writeentitiestoclient_cliententitynumber)
 925                         return false;
 926                 if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict != sv.writeentitiestoclient_cliententitynumber)
 927                         return false;
 928                 if (flags & RENDER_VIEWMODEL && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict != sv.writeentitiestoclient_cliententitynumber)
 929                         return false;
 930                 if (effects & EF_NODRAW)
 931                         return false;
 932         }
 933
 934         // don't send child if parent was rejected
 935         // FIXME: it would be better to force the parent to send...
 936         tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
 937         if (tagentity && !SV_BuildEntityState(NULL, PRVM_EDICT_NUM(tagentity), tagentity))
 938                 return false;
 939
 940         // calculate the visible box of this entity (don't use the physics box
 941         // as that is often smaller than a model, and would not count
 942         // specialvisibilityradius)
 943         if ((model = sv.models[modelindex]))
 944         {
 945                 float scale = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float;
 946                 if (scale)
 947                         scale *= (1.0f / 16.0f);
 948                 else
 949                         scale = 1;
 950                 if (ent->fields.server->angles[0] || ent->fields.server->angles[2]) // pitch and roll
 951                 {
 952                         VectorMA(ent->fields.server->origin, scale, model->rotatedmins, cullmins);
 953                         VectorMA(ent->fields.server->origin, scale, model->rotatedmaxs, cullmaxs);
 954                 }
 955                 else if (ent->fields.server->angles[1])
 956                 {
 957                         VectorMA(ent->fields.server->origin, scale, model->yawmins, cullmins);
 958                         VectorMA(ent->fields.server->origin, scale, model->yawmaxs, cullmaxs);
 959                 }
 960                 else
 961                 {
 962                         VectorMA(ent->fields.server->origin, scale, model->normalmins, cullmins);
 963                         VectorMA(ent->fields.server->origin, scale, model->normalmaxs, cullmaxs);
 964                 }
 965         }
 966         else
 967         {
 968                 // if there is no model (or it could not be loaded), use the physics box
 969                 VectorAdd(ent->fields.server->origin, ent->fields.server->mins, cullmins);
 970                 VectorAdd(ent->fields.server->origin, ent->fields.server->maxs, cullmaxs);
 971         }
 972         if (specialvisibilityradius)
 973         {
 974                 cullmins[0] = min(cullmins[0], ent->fields.server->origin[0] - specialvisibilityradius);
 975                 cullmins[1] = min(cullmins[1], ent->fields.server->origin[1] - specialvisibilityradius);
 976                 cullmins[2] = min(cullmins[2], ent->fields.server->origin[2] - specialvisibilityradius);
 977                 cullmaxs[0] = max(cullmaxs[0], ent->fields.server->origin[0] + specialvisibilityradius);
 978                 cullmaxs[1] = max(cullmaxs[1], ent->fields.server->origin[1] + specialvisibilityradius);
 979                 cullmaxs[2] = max(cullmaxs[2], ent->fields.server->origin[2] + specialvisibilityradius);
 980         }
 981
 982         // calculate center of bbox for network prioritization purposes
 983         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, netcenter);
 984
 985         // if culling box has moved, update pvs cluster links
 986         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
 987         {
 988                 VectorCopy(cullmins, ent->priv.server->cullmins);
 989                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
 990                 // a value of -1 for pvs_numclusters indicates that the links are not
 991                 // cached, and should be re-tested each time, this is the case if the
 992                 // culling box touches too many pvs clusters to store, or if the world
 993                 // model does not support FindBoxClusters
 994                 ent->priv.server->pvs_numclusters = -1;
 995                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
 996                 {
 997                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
 998                         if (i <= MAX_ENTITYCLUSTERS)
 999                                 ent->priv.server->pvs_numclusters = i;
1000                 }
1001         }
1002
1003         if (enumber != sv.writeentitiestoclient_cliententitynumber && !(effects & EF_NODEPTHTEST) && !(flags & RENDER_VIEWMODEL) && !tagentity)
1004         {
1005                 qboolean isbmodel = (model = sv.models[modelindex]) != NULL && model->name[0] == '*';
1006                 if (!isbmodel || !sv_cullentities_nevercullbmodels.integer)
1007                 {
1008                         // cull based on visibility
1009
1010                         // if not touching a visible leaf
1011                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1012                         {
1013                                 if (ent->priv.server->pvs_numclusters < 0)
1014                                 {
1015                                         // entity too big for clusters list
1016                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, cullmins, cullmaxs))
1017                                         {
1018                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1019                                                 return false;
1020                                         }
1021                                 }
1022                                 else
1023                                 {
1024                                         int i;
1025                                         // check cached clusters list
1026                                         for (i = 0;i < ent->priv.server->pvs_numclusters;i++)
1027                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ent->priv.server->pvs_clusterlist[i]))
1028                                                         break;
1029                                         if (i == ent->priv.server->pvs_numclusters)
1030                                         {
1031                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1032                                                 return false;
1033                                         }
1034                                 }
1035                         }
1036
1037                         // or not seen by random tracelines
1038                         if (sv_cullentities_trace.integer && !isbmodel)
1039                         {
1040                                 int samples = specialvisibilityradius ? sv_cullentities_trace_samples_extra.integer : sv_cullentities_trace_samples.integer;
1041                                 float enlarge = sv_cullentities_trace_enlarge.value;
1042
1043                                 qboolean visible = true;
1044
1045                                 do
1046                                 {
1047                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, cullmins, cullmaxs))
1048                                                 break; // directly visible from the server's view
1049
1050                                         if(sv_cullentities_trace_prediction.integer)
1051                                         {
1052                                                 vec3_t predeye;
1053
1054                                                 // get player velocity
1055                                                 float predtime = bound(0, host_client->ping, 0.2); // / 2
1056                                                         // sorry, no wallhacking by high ping please, and at 200ms
1057                                                         // ping a FPS is annoying to play anyway and a player is
1058                                                         // likely to have changed his direction
1059                                                 VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1060                                                 if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1061                                                 {
1062                                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, cullmins, cullmaxs))
1063                                                                 break; // directly visible from the predicted view
1064                                                 }
1065                                                 else
1066                                                 {
1067                                                         //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1068                                                 }
1069                                         }
1070
1071                                         // when we get here, we can't see the entity
1072                                         visible = false;
1073                                 }
1074                                 while(0);
1075
1076                                 if(visible)
1077                                         svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[enumber] = realtime + sv_cullentities_trace_delay.value;
1078                                 else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[enumber])
1079                                 {
1080                                         sv.writeentitiestoclient_stats_culled_trace++;
1081                                         return false;
1082                                 }
1083                         }
1084                 }
1085         }
1086
1087         // if the caller was just checking...  return true
1088         if (!cs)
1089                 return true;
1090
1091         *cs = defaultstate;
1092         cs->active = true;
1093         cs->number = enumber;
1094         VectorCopy(netcenter, cs->netcenter);
1095         VectorCopy(ent->fields.server->origin, cs->origin);
1096         VectorCopy(ent->fields.server->angles, cs->angles);
1097         cs->flags = flags;
1098         cs->effects = effects;
1099         cs->colormap = (unsigned)ent->fields.server->colormap;
1100         cs->modelindex = modelindex;
1101         cs->skin = (unsigned)ent->fields.server->skin;
1102         cs->frame = (unsigned)ent->fields.server->frame;
1103         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1104         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1105         cs->glowsize = glowsize;
1106
1107         // don't need to init cs->colormod because the defaultstate did that for us
1108         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1109         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1110         if (val->vector[0] || val->vector[1] || val->vector[2])
1111         {
1112                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1113                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1114                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1115         }
1116
1117         cs->modelindex = modelindex;
1118
1119         cs->alpha = 255;
1120         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1121         if (f)
1122         {
1123                 i = (int)f;
1124                 cs->alpha = (unsigned char)bound(0, i, 255);
1125         }
1126         // halflife
1127         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1128         if (f)
1129         {
1130                 i = (int)f;
1131                 cs->alpha = (unsigned char)bound(0, i, 255);
1132         }
1133
1134         cs->scale = 16;
1135         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1136         if (f)
1137         {
1138                 i = (int)f;
1139                 cs->scale = (unsigned char)bound(0, i, 255);
1140         }
1141
1142         cs->glowcolor = 254;
1143         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1144         if (f)
1145                 cs->glowcolor = (int)f;
1146
1147         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1148                 cs->effects |= EF_FULLBRIGHT;
1149
1150         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1151         if (val && val->_float)
1152                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1153
1154         if (ent->fields.server->movetype == MOVETYPE_STEP)
1155                 cs->flags |= RENDER_STEP;
1156         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)
1157                 cs->flags |= RENDER_LOWPRECISION;
1158         if (ent->fields.server->colormap >= 1024)
1159                 cs->flags |= RENDER_COLORMAPPED;
1160         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->edict && PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->edict == sv.writeentitiestoclient_cliententitynumber)
1161                 cs->flags |= RENDER_EXTERIORMODEL;
1162
1163         cs->light[0] = light[0];
1164         cs->light[1] = light[1];
1165         cs->light[2] = light[2];
1166         cs->light[3] = light[3];
1167         cs->lightstyle = lightstyle;
1168         cs->lightpflags = lightpflags;
1169
1170         return true;
1171 }
1172
1173 static void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg)
1174 {
1175         int i;
1176         int numsendstates;
1177         prvm_edict_t *ent;
1178
1179         // if there isn't enough space to accomplish anything, skip it
1180         if (msg->cursize + 25 > msg->maxsize)
1181                 return;
1182
1183         sv.writeentitiestoclient_msg = msg;
1184         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1185
1186         sv.writeentitiestoclient_stats_culled_pvs = 0;
1187         sv.writeentitiestoclient_stats_culled_trace = 0;
1188         sv.writeentitiestoclient_stats_visibleentities = 0;
1189         sv.writeentitiestoclient_stats_totalentities = 0;
1190
1191 // find the client's PVS
1192         // the real place being tested from
1193         VectorAdd(clent->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1194         sv.writeentitiestoclient_pvsbytes = 0;
1195         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1196                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs));
1197
1198         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1199
1200         // send all entities that touch the pvs
1201         numsendstates = 0;
1202         for (i = 1, ent = PRVM_NEXT_EDICT(prog->edicts);i < prog->num_edicts;i++, ent = PRVM_NEXT_EDICT(ent))
1203                 if (!ent->priv.server->free && SV_BuildEntityState(sv.writeentitiestoclient_sendstates + numsendstates, ent, i))
1204                         numsendstates++;
1205
1206         if (sv_cullentities_stats.integer)
1207                 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);
1208
1209         EntityFrameCSQC_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
1210
1211         if (client->entitydatabase5)
1212                 EntityFrame5_WriteFrame(msg, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence);
1213         else if (client->entitydatabase4)
1214         {
1215                 EntityFrame4_WriteFrame(msg, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1216                 Protocol_WriteStatsReliable();
1217         }
1218         else if (client->entitydatabase)
1219         {
1220                 EntityFrame_WriteFrame(msg, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1221                 Protocol_WriteStatsReliable();
1222         }
1223         else
1224         {
1225                 EntityFrameQuake_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
1226                 Protocol_WriteStatsReliable();
1227         }
1228 }
1229
1230 /*
1231 =============
1232 SV_CleanupEnts
1233
1234 =============
1235 */
1236 static void SV_CleanupEnts (void)
1237 {
1238         int             e;
1239         prvm_edict_t    *ent;
1240
1241         ent = PRVM_NEXT_EDICT(prog->edicts);
1242         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1243                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1244 }
1245
1246 /*
1247 ==================
1248 SV_WriteClientdataToMessage
1249
1250 ==================
1251 */
1252 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1253 {
1254         int             bits;
1255         int             i;
1256         prvm_edict_t    *other;
1257         int             items;
1258         prvm_eval_t     *val;
1259         vec3_t  punchvector;
1260         int             viewzoom;
1261         const char *s;
1262         float   *statsf = (float *)stats;
1263
1264 //
1265 // send a damage message
1266 //
1267         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1268         {
1269                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1270                 MSG_WriteByte (msg, svc_damage);
1271                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1272                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1273                 for (i=0 ; i<3 ; i++)
1274                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1275
1276                 ent->fields.server->dmg_take = 0;
1277                 ent->fields.server->dmg_save = 0;
1278         }
1279
1280 //
1281 // send the current viewpos offset from the view entity
1282 //
1283         SV_SetIdealPitch ();            // how much to look up / down ideally
1284
1285 // a fixangle might get lost in a dropped packet.  Oh well.
1286         if(ent->fields.server->fixangle)
1287         {
1288                 // angle fixing was requested by global thinking code...
1289                 // so store the current angles for later use
1290                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1291                 host_client->fixangle_angles_set = TRUE;
1292
1293                 // and clear fixangle for the next frame
1294                 ent->fields.server->fixangle = 0;
1295         }
1296
1297         if (host_client->fixangle_angles_set)
1298         {
1299                 MSG_WriteByte (msg, svc_setangle);
1300                 for (i=0 ; i < 3 ; i++)
1301                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1302                 host_client->fixangle_angles_set = FALSE;
1303         }
1304
1305         // stuff the sigil bits into the high bits of items for sbar, or else
1306         // mix in items2
1307         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1308         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1309                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1310         else
1311                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1312
1313         VectorClear(punchvector);
1314         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1315                 VectorCopy(val->vector, punchvector);
1316
1317         // cache weapon model name and index in client struct to save time
1318         // (this search can be almost 1% of cpu time!)
1319         s = PRVM_GetString(ent->fields.server->weaponmodel);
1320         if (strcmp(s, client->weaponmodel))
1321         {
1322                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1323                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1324         }
1325
1326         viewzoom = 255;
1327         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1328                 viewzoom = (int)(val->_float * 255.0f);
1329         if (viewzoom == 0)
1330                 viewzoom = 255;
1331
1332         bits = 0;
1333
1334         if ((int)ent->fields.server->flags & FL_ONGROUND)
1335                 bits |= SU_ONGROUND;
1336         if (ent->fields.server->waterlevel >= 2)
1337                 bits |= SU_INWATER;
1338         if (ent->fields.server->idealpitch)
1339                 bits |= SU_IDEALPITCH;
1340
1341         for (i=0 ; i<3 ; i++)
1342         {
1343                 if (ent->fields.server->punchangle[i])
1344                         bits |= (SU_PUNCH1<<i);
1345                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE)
1346                         if (punchvector[i])
1347                                 bits |= (SU_PUNCHVEC1<<i);
1348                 if (ent->fields.server->velocity[i])
1349                         bits |= (SU_VELOCITY1<<i);
1350         }
1351
1352         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1353         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1354         stats[STAT_ITEMS] = items;
1355         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1356         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1357         stats[STAT_WEAPON] = client->weaponmodelindex;
1358         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1359         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1360         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1361         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1362         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1363         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1364         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1365         stats[STAT_VIEWZOOM] = viewzoom;
1366         stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
1367         stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
1368         // the QC bumps these itself by sending svc_'s, so we have to keep them
1369         // zero or they'll be corrected by the engine
1370         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1371         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1372
1373         // movement settings for prediction
1374         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1375         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1376         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1377         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1378         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1379         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1380         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1381         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1382         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1383         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1384         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1385         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1386         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1387         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1388         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1389         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1390         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1391         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1392         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1393         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1394
1395         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1396         {
1397                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1398                 bits |= SU_ITEMS;
1399                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1400                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1401                 bits |= SU_WEAPON;
1402                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1403                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1404                         if (viewzoom != 255)
1405                                 bits |= SU_VIEWZOOM;
1406         }
1407
1408         if (bits >= 65536)
1409                 bits |= SU_EXTEND1;
1410         if (bits >= 16777216)
1411                 bits |= SU_EXTEND2;
1412
1413         // send the data
1414         MSG_WriteByte (msg, svc_clientdata);
1415         MSG_WriteShort (msg, bits);
1416         if (bits & SU_EXTEND1)
1417                 MSG_WriteByte(msg, bits >> 16);
1418         if (bits & SU_EXTEND2)
1419                 MSG_WriteByte(msg, bits >> 24);
1420
1421         if (bits & SU_VIEWHEIGHT)
1422                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1423
1424         if (bits & SU_IDEALPITCH)
1425                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1426
1427         for (i=0 ; i<3 ; i++)
1428         {
1429                 if (bits & (SU_PUNCH1<<i))
1430                 {
1431                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
1432                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1433                         else
1434                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1435                 }
1436                 if (bits & (SU_PUNCHVEC1<<i))
1437                 {
1438                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1439                                 MSG_WriteCoord16i(msg, punchvector[i]);
1440                         else
1441                                 MSG_WriteCoord32f(msg, punchvector[i]);
1442                 }
1443                 if (bits & (SU_VELOCITY1<<i))
1444                 {
1445                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1446                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1447                         else
1448                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1449                 }
1450         }
1451
1452         if (bits & SU_ITEMS)
1453                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1454
1455         if (sv.protocol == PROTOCOL_DARKPLACES5)
1456         {
1457                 if (bits & SU_WEAPONFRAME)
1458                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1459                 if (bits & SU_ARMOR)
1460                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1461                 if (bits & SU_WEAPON)
1462                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1463                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1464                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1465                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1466                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1467                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1468                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1469                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1470                 if (bits & SU_VIEWZOOM)
1471                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1472         }
1473         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1474         {
1475                 if (bits & SU_WEAPONFRAME)
1476                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1477                 if (bits & SU_ARMOR)
1478                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1479                 if (bits & SU_WEAPON)
1480                         MSG_WriteByte (msg, stats[STAT_WEAPON]);
1481                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1482                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1483                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1484                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1485                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1486                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1487                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1488                 {
1489                         for (i = 0;i < 32;i++)
1490                                 if (stats[STAT_WEAPON] & (1<<i))
1491                                         break;
1492                         MSG_WriteByte (msg, i);
1493                 }
1494                 else
1495                         MSG_WriteByte (msg, stats[STAT_WEAPON]);
1496                 if (bits & SU_VIEWZOOM)
1497                 {
1498                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1499                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1500                         else
1501                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1502                 }
1503         }
1504 }
1505
1506 void SV_FlushBroadcastMessages(void)
1507 {
1508         int i;
1509         client_t *client;
1510         if (sv.datagram.cursize <= 0)
1511                 return;
1512         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1513         {
1514                 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])))
1515                         continue;
1516                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1517                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1518         }
1519         SZ_Clear(&sv.datagram);
1520 }
1521
1522 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg)
1523 {
1524         // scan the splitpoints to find out how many we can fit in
1525         int numsegments, j, split;
1526         if (!client->unreliablemsg_splitpoints)
1527                 return;
1528         // always accept the first one if it's within 1400 bytes, this ensures
1529         // that very big datagrams which are over the rate limit still get
1530         // through, just to keep it working
1531         if (msg->cursize + client->unreliablemsg_splitpoint[0] > msg->maxsize && msg->maxsize < 1400)
1532         {
1533                 numsegments = 1;
1534                 msg->maxsize = 1400;
1535         }
1536         else
1537                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1538                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > msg->maxsize)
1539                                 break;
1540         if (numsegments > 0)
1541         {
1542                 // some will fit, so add the ones that will fit
1543                 split = client->unreliablemsg_splitpoint[numsegments-1];
1544                 // note this discards ones that were accepted by the segments scan but
1545                 // can not fit, such as a really huge first one that will never ever
1546                 // fit in a packet...
1547                 if (msg->cursize + split <= msg->maxsize)
1548                         SZ_Write(msg, client->unreliablemsg.data, split);
1549                 // remove the part we sent, keeping any remaining data
1550                 client->unreliablemsg.cursize -= split;
1551                 if (client->unreliablemsg.cursize > 0)
1552                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1553                 // adjust remaining splitpoints
1554                 client->unreliablemsg_splitpoints -= numsegments;
1555                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1556                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1557         }
1558 }
1559
1560 /*
1561 =======================
1562 SV_SendClientDatagram
1563 =======================
1564 */
1565 static void SV_SendClientDatagram (client_t *client)
1566 {
1567         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1568         sizebuf_t msg;
1569         int stats[MAX_CL_STATS];
1570         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1571
1572         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1573         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1574         if (sv_maxrate.integer != maxrate)
1575                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1576         // clientrate determines the 'cleartime' of a packet
1577         // (how long to wait before sending another, based on this packet's size)
1578         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1579
1580         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1581         {
1582                 // for good singleplayer, send huge packets and never limit frequency
1583                 clientrate = 1000000000;
1584                 maxsize = sizeof(sv_sendclientdatagram_buf);
1585                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1586         }
1587         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1588         {
1589                 // no packet size limit support on older protocols because DP1-4 kick
1590                 // the client off if they overflow, and quake protocol shows less than
1591                 // the full entity set if rate limited
1592                 clientrate = 1000000000;
1593                 maxsize = 1400;
1594                 maxsize2 = 1400;
1595         }
1596         else
1597         {
1598                 // DP5 and later protocols support packet size limiting which is a
1599                 // better method than limiting packet frequency as QW does
1600                 //
1601                 // this rate limiting does not understand sys_ticrate 0
1602                 // (but no one should be running that on a server!)
1603                 maxsize = (int)(clientrate * sys_ticrate.value);
1604                 maxsize = bound(100, maxsize, 1400);
1605                 maxsize2 = 1400;
1606         }
1607
1608         // while downloading, limit entity updates to half the packet
1609         // (any leftover space will be used for downloading)
1610         if (host_client->download_file)
1611                 maxsize /= 2;
1612
1613         msg.data = sv_sendclientdatagram_buf;
1614         msg.maxsize = maxsize;
1615         msg.cursize = 0;
1616
1617         // obey rate limit by limiting packet frequency if the packet size
1618         // limiting fails
1619         // (usually this is caused by reliable messages)
1620         if (!NetConn_CanSend(client->netconnection))
1621         {
1622                 // send the datagram
1623                 //NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate);
1624                 return;
1625         }
1626         else if (host_client->spawned)
1627         {
1628                 MSG_WriteByte (&msg, svc_time);
1629                 MSG_WriteFloat (&msg, sv.time);
1630
1631                 // add the client specific data to the datagram
1632                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1633                 // now update the stats[] array using any registered custom fields
1634                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1635                 // set host_client->statsdeltabits
1636                 Protocol_UpdateClientStats (stats);
1637
1638                 // add as many queued unreliable messages (effects) as we can fit
1639                 // limit effects to half of the remaining space
1640                 msg.maxsize -= (msg.maxsize - msg.cursize) / 2;
1641                 if (client->unreliablemsg.cursize)
1642                         SV_WriteUnreliableMessages (client, &msg);
1643
1644                 msg.maxsize = maxsize;
1645
1646                 // now write as many entities as we can fit, and also sends stats
1647                 SV_WriteEntitiesToClient (client, client->edict, &msg);
1648         }
1649         else if (realtime > client->keepalivetime)
1650         {
1651                 // the player isn't totally in the game yet
1652                 // send small keepalive messages if too much time has passed
1653                 msg.maxsize = maxsize2;
1654                 client->keepalivetime = realtime + 5;
1655                 MSG_WriteChar (&msg, svc_nop);
1656         }
1657
1658         msg.maxsize = maxsize2;
1659
1660         // if a download is active, see if there is room to fit some download data
1661         // in this packet
1662         downloadsize = maxsize * 2 - msg.cursize - 7;
1663         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1664         {
1665                 fs_offset_t downloadstart;
1666                 unsigned char data[1400];
1667                 downloadstart = FS_Tell(host_client->download_file);
1668                 downloadsize = min(downloadsize, (int)sizeof(data));
1669                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1670                 // note this sends empty messages if at the end of the file, which is
1671                 // necessary to keep the packet loss logic working
1672                 // (the last blocks may be lost and need to be re-sent, and that will
1673                 //  only occur if the client acks the empty end messages, revealing
1674                 //  a gap in the download progress, causing the last blocks to be
1675                 //  sent again)
1676                 MSG_WriteChar (&msg, svc_downloaddata);
1677                 MSG_WriteLong (&msg, downloadstart);
1678                 MSG_WriteShort (&msg, downloadsize);
1679                 if (downloadsize > 0)
1680                         SZ_Write (&msg, data, downloadsize);
1681         }
1682
1683 // send the datagram
1684         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate);
1685 }
1686
1687 /*
1688 =======================
1689 SV_UpdateToReliableMessages
1690 =======================
1691 */
1692 static void SV_UpdateToReliableMessages (void)
1693 {
1694         int i, j;
1695         client_t *client;
1696         prvm_eval_t *val;
1697         const char *name;
1698         const char *model;
1699         const char *skin;
1700
1701 // check for changes to be sent over the reliable streams
1702         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1703         {
1704                 // update the host_client fields we care about according to the entity fields
1705                 host_client->edict = PRVM_EDICT_NUM(i+1);
1706
1707                 // DP_SV_CLIENTNAME
1708                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1709                 if (name == NULL)
1710                         name = "";
1711                 // always point the string back at host_client->name to keep it safe
1712                 strlcpy (host_client->name, name, sizeof (host_client->name));
1713                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1714                 if (strcmp(host_client->old_name, host_client->name))
1715                 {
1716                         if (host_client->spawned)
1717                                 SV_BroadcastPrintf("%s^%i changed name to %s\n", host_client->old_name, STRING_COLOR_DEFAULT, host_client->name);
1718                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
1719                         // send notification to all clients
1720                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
1721                         MSG_WriteByte (&sv.reliable_datagram, i);
1722                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
1723                 }
1724
1725                 // DP_SV_CLIENTCOLORS
1726                 // this is always found (since it's added by the progs loader)
1727                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
1728                         host_client->colors = (int)val->_float;
1729                 if (host_client->old_colors != host_client->colors)
1730                 {
1731                         host_client->old_colors = host_client->colors;
1732                         // send notification to all clients
1733                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
1734                         MSG_WriteByte (&sv.reliable_datagram, i);
1735                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
1736                 }
1737
1738                 // NEXUIZ_PLAYERMODEL
1739                 if( prog->fieldoffsets.playermodel >= 0 ) {
1740                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
1741                         if (model == NULL)
1742                                 model = "";
1743                         // always point the string back at host_client->name to keep it safe
1744                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
1745                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
1746                 }
1747
1748                 // NEXUIZ_PLAYERSKIN
1749                 if( prog->fieldoffsets.playerskin >= 0 ) {
1750                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
1751                         if (skin == NULL)
1752                                 skin = "";
1753                         // always point the string back at host_client->name to keep it safe
1754                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
1755                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
1756                 }
1757
1758                 // frags
1759                 host_client->frags = (int)host_client->edict->fields.server->frags;
1760                 if (host_client->old_frags != host_client->frags)
1761                 {
1762                         host_client->old_frags = host_client->frags;
1763                         // send notification to all clients
1764                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
1765                         MSG_WriteByte (&sv.reliable_datagram, i);
1766                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
1767                 }
1768         }
1769
1770         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
1771                 if (client->netconnection)
1772                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1773
1774         SZ_Clear (&sv.reliable_datagram);
1775 }
1776
1777
1778 /*
1779 =======================
1780 SV_SendClientMessages
1781 =======================
1782 */
1783 void SV_SendClientMessages (void)
1784 {
1785         int i;
1786
1787         if (sv.protocol == PROTOCOL_QUAKEWORLD)
1788                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
1789
1790         SV_FlushBroadcastMessages();
1791
1792 // update frags, names, etc
1793         SV_UpdateToReliableMessages();
1794
1795 // build individual updates
1796         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1797         {
1798                 if (!host_client->active)
1799                         continue;
1800                 if (!host_client->netconnection)
1801                         continue;
1802
1803                 if (host_client->netconnection->message.overflowed)
1804                 {
1805                         SV_DropClient (true);   // if the message couldn't send, kick off
1806                         continue;
1807                 }
1808
1809                 SV_SendClientDatagram (host_client);
1810         }
1811
1812 // clear muzzle flashes
1813         SV_CleanupEnts();
1814 }
1815
1816 static void SV_StartDownload_f(void)
1817 {
1818         if (host_client->download_file)
1819                 host_client->download_started = true;
1820 }
1821
1822 static void SV_Download_f(void)
1823 {
1824         const char *whichpack, *whichpack2, *extension;
1825
1826         if (Cmd_Argc() != 2)
1827         {
1828                 SV_ClientPrintf("usage: download <filename>\n");
1829                 return;
1830         }
1831
1832         if (FS_CheckNastyPath(Cmd_Argv(1), false))
1833         {
1834                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
1835                 return;
1836         }
1837
1838         if (host_client->download_file)
1839         {
1840                 // at this point we'll assume the previous download should be aborted
1841                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
1842                 Host_ClientCommands("\nstopdownload\n");
1843
1844                 // close the file and reset variables
1845                 FS_Close(host_client->download_file);
1846                 host_client->download_file = NULL;
1847                 host_client->download_name[0] = 0;
1848                 host_client->download_expectedposition = 0;
1849                 host_client->download_started = false;
1850         }
1851
1852         if (!sv_allowdownloads.integer)
1853         {
1854                 SV_ClientPrintf("Downloads are disabled on this server\n");
1855                 Host_ClientCommands("\nstopdownload\n");
1856                 return;
1857         }
1858
1859         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
1860         extension = FS_FileExtension(host_client->download_name);
1861
1862         // host_client is asking to download a specified file
1863         if (developer.integer >= 100)
1864                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
1865
1866         if (!FS_FileExists(host_client->download_name))
1867         {
1868                 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);
1869                 Host_ClientCommands("\nstopdownload\n");
1870                 return;
1871         }
1872
1873         // check if the user is trying to download part of registered Quake(r)
1874         whichpack = FS_WhichPack(host_client->download_name);
1875         whichpack2 = FS_WhichPack("gfx/pop.lmp");
1876         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
1877         {
1878                 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);
1879                 Host_ClientCommands("\nstopdownload\n");
1880                 return;
1881         }
1882
1883         // check if the server has forbidden archive downloads entirely
1884         if (!sv_allowdownloads_inarchive.integer)
1885         {
1886                 whichpack = FS_WhichPack(host_client->download_name);
1887                 if (whichpack)
1888                 {
1889                         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);
1890                         Host_ClientCommands("\nstopdownload\n");
1891                         return;
1892                 }
1893         }
1894
1895         if (!sv_allowdownloads_config.integer)
1896         {
1897                 if (!strcasecmp(extension, "cfg"))
1898                 {
1899                         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);
1900                         Host_ClientCommands("\nstopdownload\n");
1901                         return;
1902                 }
1903         }
1904
1905         if (!sv_allowdownloads_dlcache.integer)
1906         {
1907                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
1908                 {
1909                         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);
1910                         Host_ClientCommands("\nstopdownload\n");
1911                         return;
1912                 }
1913         }
1914
1915         if (!sv_allowdownloads_archive.integer)
1916         {
1917                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
1918                 {
1919                         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);
1920                         Host_ClientCommands("\nstopdownload\n");
1921                         return;
1922                 }
1923         }
1924
1925         host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
1926         if (!host_client->download_file)
1927         {
1928                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
1929                 Host_ClientCommands("\nstopdownload\n");
1930                 return;
1931         }
1932
1933         if (FS_FileSize(host_client->download_file) > 1<<30)
1934         {
1935                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
1936                 Host_ClientCommands("\nstopdownload\n");
1937                 FS_Close(host_client->download_file);
1938                 host_client->download_file = NULL;
1939                 return;
1940         }
1941
1942         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
1943
1944         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
1945
1946         host_client->download_expectedposition = 0;
1947         host_client->download_started = false;
1948
1949         // the rest of the download process is handled in SV_SendClientDatagram
1950         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
1951         //
1952         // no svc_downloaddata messages will be sent until sv_startdownload is
1953         // sent by the client
1954 }
1955
1956 /*
1957 ==============================================================================
1958
1959 SERVER SPAWNING
1960
1961 ==============================================================================
1962 */
1963
1964 /*
1965 ================
1966 SV_ModelIndex
1967
1968 ================
1969 */
1970 int SV_ModelIndex(const char *s, int precachemode)
1971 {
1972         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE) ? 256 : MAX_MODELS);
1973         char filename[MAX_QPATH];
1974         if (!s || !*s)
1975                 return 0;
1976         // testing
1977         //if (precachemode == 2)
1978         //      return 0;
1979         strlcpy(filename, s, sizeof(filename));
1980         for (i = 2;i < limit;i++)
1981         {
1982                 if (!sv.model_precache[i][0])
1983                 {
1984                         if (precachemode)
1985                         {
1986                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
1987                                 {
1988                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
1989                                         return 0;
1990                                 }
1991                                 if (precachemode == 1)
1992                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
1993                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
1994                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
1995                                 if (sv.state != ss_loading)
1996                                 {
1997                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
1998                                         MSG_WriteShort(&sv.reliable_datagram, i);
1999                                         MSG_WriteString(&sv.reliable_datagram, filename);
2000                                 }
2001                                 return i;
2002                         }
2003                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2004                         return 0;
2005                 }
2006                 if (!strcmp(sv.model_precache[i], filename))
2007                         return i;
2008         }
2009         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2010         return 0;
2011 }
2012
2013 /*
2014 ================
2015 SV_SoundIndex
2016
2017 ================
2018 */
2019 int SV_SoundIndex(const char *s, int precachemode)
2020 {
2021         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE) ? 256 : MAX_SOUNDS);
2022         char filename[MAX_QPATH];
2023         if (!s || !*s)
2024                 return 0;
2025         // testing
2026         //if (precachemode == 2)
2027         //      return 0;
2028         strlcpy(filename, s, sizeof(filename));
2029         for (i = 1;i < limit;i++)
2030         {
2031                 if (!sv.sound_precache[i][0])
2032                 {
2033                         if (precachemode)
2034                         {
2035                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2036                                 {
2037                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2038                                         return 0;
2039                                 }
2040                                 if (precachemode == 1)
2041                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2042                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2043                                 if (sv.state != ss_loading)
2044                                 {
2045                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2046                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2047                                         MSG_WriteString(&sv.reliable_datagram, filename);
2048                                 }
2049                                 return i;
2050                         }
2051                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2052                         return 0;
2053                 }
2054                 if (!strcmp(sv.sound_precache[i], filename))
2055                         return i;
2056         }
2057         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2058         return 0;
2059 }
2060
2061 /*
2062 ================
2063 SV_ParticleEffectIndex
2064
2065 ================
2066 */
2067 int SV_ParticleEffectIndex(const char *name)
2068 {
2069         int i, argc, linenumber, effectnameindex;
2070         fs_offset_t filesize;
2071         unsigned char *filedata;
2072         const char *text, *textstart, *textend;
2073         char argv[16][1024];
2074         if (!sv.particleeffectnamesloaded)
2075         {
2076                 sv.particleeffectnamesloaded = true;
2077                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2078                 for (i = 0;i < EFFECT_TOTAL;i++)
2079                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2080                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2081                 if (filedata)
2082                 {
2083                         textstart = (const char *)filedata;
2084                         textend = (const char *)filedata + filesize;
2085                         text = textstart;
2086                         for (linenumber = 1;;linenumber++)
2087                         {
2088                                 argc = 0;
2089                                 for (;;)
2090                                 {
2091                                         if (!COM_ParseToken_Simple(&text, true) || !strcmp(com_token, "\n"))
2092                                                 break;
2093                                         if (argc < 16)
2094                                         {
2095                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2096                                                 argc++;
2097                                         }
2098                                 }
2099                                 if (com_token[0] == 0)
2100                                         break; // if the loop exited and it's not a \n, it's EOF
2101                                 if (argc < 1)
2102                                         continue;
2103                                 if (!strcmp(argv[0], "effect"))
2104                                 {
2105                                         if (argc == 2)
2106                                         {
2107                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2108                                                 {
2109                                                         if (sv.particleeffectname[effectnameindex][0])
2110                                                         {
2111                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2112                                                                         break;
2113                                                         }
2114                                                         else
2115                                                         {
2116                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2117                                                                 break;
2118                                                         }
2119                                                 }
2120                                                 // if we run out of names, abort
2121                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2122                                                 {
2123                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2124                                                         break;
2125                                                 }
2126                                         }
2127                                 }
2128                         }
2129                         Mem_Free(filedata);
2130                 }
2131         }
2132         // search for the name
2133         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2134                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2135                         return effectnameindex;
2136         // return 0 if we couldn't find it
2137         return 0;
2138 }
2139
2140 /*
2141 ================
2142 SV_CreateBaseline
2143
2144 ================
2145 */
2146 static void SV_CreateBaseline (void)
2147 {
2148         int i, entnum, large;
2149         prvm_edict_t *svent;
2150
2151         // LordHavoc: clear *all* states (note just active ones)
2152         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2153         {
2154                 // get the current server version
2155                 svent = PRVM_EDICT_NUM(entnum);
2156
2157                 // LordHavoc: always clear state values, whether the entity is in use or not
2158                 svent->priv.server->baseline = defaultstate;
2159
2160                 if (svent->priv.server->free)
2161                         continue;
2162                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2163                         continue;
2164
2165                 // create entity baseline
2166                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2167                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2168                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2169                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2170                 if (entnum > 0 && entnum <= svs.maxclients)
2171                 {
2172                         svent->priv.server->baseline.colormap = entnum;
2173                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2174                 }
2175                 else
2176                 {
2177                         svent->priv.server->baseline.colormap = 0;
2178                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2179                 }
2180
2181                 large = false;
2182                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2183                         large = true;
2184
2185                 // add to the message
2186                 if (large)
2187                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2188                 else
2189                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2190                 MSG_WriteShort (&sv.signon, entnum);
2191
2192                 if (large)
2193                 {
2194                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2195                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2196                 }
2197                 else
2198                 {
2199                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2200                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2201                 }
2202                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2203                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2204                 for (i=0 ; i<3 ; i++)
2205                 {
2206                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2207                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2208                 }
2209         }
2210 }
2211
2212
2213 /*
2214 ================
2215 SV_SaveSpawnparms
2216
2217 Grabs the current state of each client for saving across the
2218 transition to another level
2219 ================
2220 */
2221 void SV_SaveSpawnparms (void)
2222 {
2223         int             i, j;
2224
2225         svs.serverflags = (int)prog->globals.server->serverflags;
2226
2227         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2228         {
2229                 if (!host_client->active)
2230                         continue;
2231
2232         // call the progs to get default spawn parms for the new client
2233                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2234                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2235                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2236                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2237         }
2238 }
2239
2240 /*
2241 ================
2242 SV_SpawnServer
2243
2244 This is called at the start of each level
2245 ================
2246 */
2247
2248 void SV_SpawnServer (const char *server)
2249 {
2250         prvm_edict_t *ent;
2251         int i;
2252         char *entities;
2253         model_t *worldmodel;
2254         char modelname[sizeof(sv.modelname)];
2255
2256         Con_DPrintf("SpawnServer: %s\n", server);
2257
2258         if (cls.state != ca_dedicated)
2259                 SCR_BeginLoadingPlaque();
2260
2261         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2262         worldmodel = Mod_ForName(modelname, false, true, true);
2263         if (!worldmodel || !worldmodel->TraceBox)
2264         {
2265                 Con_Printf("Couldn't load map %s\n", modelname);
2266                 return;
2267         }
2268
2269         // let's not have any servers with no name
2270         if (hostname.string[0] == 0)
2271                 Cvar_Set ("hostname", "UNNAMED");
2272         scr_centertime_off = 0;
2273
2274         svs.changelevel_issued = false;         // now safe to issue another
2275
2276         // make the map a required file for clients
2277         Curl_ClearRequirements();
2278         Curl_RequireFile(modelname);
2279
2280 //
2281 // tell all connected clients that we are going to a new level
2282 //
2283         if (sv.active)
2284         {
2285                 client_t *client;
2286                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2287                 {
2288                         if (client->netconnection)
2289                         {
2290                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2291                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2292                         }
2293                 }
2294         }
2295         else
2296         {
2297                 // open server port
2298                 NetConn_OpenServerPorts(true);
2299         }
2300
2301 //
2302 // make cvars consistant
2303 //
2304         if (coop.integer)
2305                 Cvar_SetValue ("deathmatch", 0);
2306         // LordHavoc: it can be useful to have skills outside the range 0-3...
2307         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2308         //Cvar_SetValue ("skill", (float)current_skill);
2309         current_skill = (int)(skill.value + 0.5);
2310
2311 //
2312 // set up the new server
2313 //
2314         memset (&sv, 0, sizeof(sv));
2315         // if running a local client, make sure it doesn't try to access the last
2316         // level's data which is no longer valiud
2317         cls.signon = 0;
2318
2319         if(*sv_random_seed.string)
2320         {
2321                 srand(sv_random_seed.integer);
2322                 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);
2323         }
2324
2325         SV_VM_Setup();
2326
2327         sv.active = true;
2328
2329         strlcpy (sv.name, server, sizeof (sv.name));
2330
2331         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2332         if (sv.protocol == PROTOCOL_UNKNOWN)
2333         {
2334                 char buffer[1024];
2335                 Protocol_Names(buffer, sizeof(buffer));
2336                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2337                 sv.protocol = PROTOCOL_QUAKE;
2338         }
2339
2340         SV_VM_Begin();
2341
2342 // load progs to get entity field count
2343         //PR_LoadProgs ( sv_progs.string );
2344
2345         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2346         sv.datagram.cursize = 0;
2347         sv.datagram.data = sv.datagram_buf;
2348
2349         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2350         sv.reliable_datagram.cursize = 0;
2351         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2352
2353         sv.signon.maxsize = sizeof(sv.signon_buf);
2354         sv.signon.cursize = 0;
2355         sv.signon.data = sv.signon_buf;
2356
2357 // leave slots at start for clients only
2358         //prog->num_edicts = svs.maxclients+1;
2359
2360         sv.state = ss_loading;
2361         prog->allowworldwrites = true;
2362         sv.paused = false;
2363
2364         prog->globals.server->time = sv.time = 1.0;
2365
2366         Mod_ClearUsed();
2367         worldmodel->used = true;
2368
2369         strlcpy (sv.name, server, sizeof (sv.name));
2370         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2371         sv.worldmodel = worldmodel;
2372         sv.models[1] = sv.worldmodel;
2373
2374 //
2375 // clear world interaction links
2376 //
2377         VectorCopy(sv.worldmodel->normalmins, sv.world.areagrid_mins);
2378         VectorCopy(sv.worldmodel->normalmaxs, sv.world.areagrid_maxs);
2379         World_Clear(&sv.world);
2380
2381         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2382
2383         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2384         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2385         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2386         {
2387                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2388                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2389         }
2390
2391 //
2392 // load the rest of the entities
2393 //
2394         // AK possible hack since num_edicts is still 0
2395         ent = PRVM_EDICT_NUM(0);
2396         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2397         ent->priv.server->free = false;
2398         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2399         ent->fields.server->modelindex = 1;             // world model
2400         ent->fields.server->solid = SOLID_BSP;
2401         ent->fields.server->movetype = MOVETYPE_PUSH;
2402         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->mins);
2403         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->maxs);
2404         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->absmin);
2405         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->absmax);
2406
2407         if (coop.value)
2408                 prog->globals.server->coop = coop.integer;
2409         else
2410                 prog->globals.server->deathmatch = deathmatch.integer;
2411
2412         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2413
2414 // serverflags are for cross level information (sigils)
2415         prog->globals.server->serverflags = svs.serverflags;
2416
2417         // we need to reset the spawned flag on all connected clients here so that
2418         // their thinks don't run during startup (before PutClientInServer)
2419         // we also need to set up the client entities now
2420         // and we need to set the ->edict pointers to point into the progs edicts
2421         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2422         {
2423                 host_client->spawned = false;
2424                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2425                 PRVM_ED_ClearEdict(host_client->edict);
2426         }
2427
2428         // load replacement entity file if found
2429         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2430         {
2431                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2432                 PRVM_ED_LoadFromFile (entities);
2433                 Mem_Free(entities);
2434         }
2435         else
2436                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2437
2438
2439         // LordHavoc: clear world angles (to fix e3m3.bsp)
2440         VectorClear(prog->edicts->fields.server->angles);
2441
2442 // all setup is completed, any further precache statements are errors
2443         sv.state = ss_active;
2444         prog->allowworldwrites = false;
2445
2446 // run two frames to allow everything to settle
2447         for (i = 0;i < 2;i++)
2448         {
2449                 sv.frametime = 0.1;
2450                 SV_Physics ();
2451         }
2452
2453         Mod_PurgeUnused();
2454
2455 // create a baseline for more efficient communications
2456         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2457                 SV_CreateBaseline ();
2458
2459 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2460         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2461         {
2462                 if (!host_client->active)
2463                         continue;
2464                 if (host_client->netconnection)
2465                         SV_SendServerinfo(host_client);
2466                 else
2467                 {
2468                         int j;
2469                         // if client is a botclient coming from a level change, we need to
2470                         // set up client info that normally requires networking
2471
2472                         // copy spawn parms out of the client_t
2473                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2474                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2475
2476                         // call the spawn function
2477                         host_client->clientconnectcalled = true;
2478                         prog->globals.server->time = sv.time;
2479                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2480                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2481                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2482                         host_client->spawned = true;
2483                 }
2484         }
2485
2486         Con_DPrint("Server spawned.\n");
2487         NetConn_Heartbeat (2);
2488
2489         SV_VM_End();
2490 }
2491
2492 /////////////////////////////////////////////////////
2493 // SV VM stuff
2494
2495 static void SV_VM_CB_BeginIncreaseEdicts(void)
2496 {
2497         int i;
2498         prvm_edict_t *ent;
2499
2500         // links don't survive the transition, so unlink everything
2501         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2502         {
2503                 if (!ent->priv.server->free)
2504                         World_UnlinkEdict(prog->edicts + i);
2505                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
2506         }
2507         World_Clear(&sv.world);
2508 }
2509
2510 static void SV_VM_CB_EndIncreaseEdicts(void)
2511 {
2512         int i;
2513         prvm_edict_t *ent;
2514
2515         // link every entity except world
2516         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2517                 if (!ent->priv.server->free)
2518                         SV_LinkEdict(ent, false);
2519 }
2520
2521 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2522 {
2523         // LordHavoc: for consistency set these here
2524         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2525
2526         e->priv.server->move = false; // don't move on first frame
2527
2528         if (num >= 0 && num < svs.maxclients)
2529         {
2530                 prvm_eval_t *val;
2531                 // set colormap and team on newly created player entity
2532                 e->fields.server->colormap = num + 1;
2533                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
2534                 // set netname/clientcolors back to client values so that
2535                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
2536                 // reset them
2537                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
2538                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
2539                         val->_float = svs.clients[num].colors;
2540                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
2541                 if( prog->fieldoffsets.playermodel >= 0 )
2542                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
2543                 if( prog->fieldoffsets.playerskin >= 0 )
2544                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
2545                 // Assign netaddress (IP Address, etc)
2546                 if(prog->fieldoffsets.netaddress >= 0)
2547                 { // Valid Field; Process
2548                         if(svs.clients[num].netconnection != NULL)
2549                         {// Valid Address; Assign
2550                                 // Acquire Readable Address
2551                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
2552                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
2553                         }
2554                         else
2555                                 // Invalid / Bot
2556                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
2557                 }
2558         }
2559 }
2560
2561 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
2562 {
2563         World_UnlinkEdict(ed);          // unlink from world bsp
2564
2565         ed->fields.server->model = 0;
2566         ed->fields.server->takedamage = 0;
2567         ed->fields.server->modelindex = 0;
2568         ed->fields.server->colormap = 0;
2569         ed->fields.server->skin = 0;
2570         ed->fields.server->frame = 0;
2571         VectorClear(ed->fields.server->origin);
2572         VectorClear(ed->fields.server->angles);
2573         ed->fields.server->nextthink = -1;
2574         ed->fields.server->solid = 0;
2575 }
2576
2577 static void SV_VM_CB_CountEdicts(void)
2578 {
2579         int             i;
2580         prvm_edict_t    *ent;
2581         int             active, models, solid, step;
2582
2583         active = models = solid = step = 0;
2584         for (i=0 ; i<prog->num_edicts ; i++)
2585         {
2586                 ent = PRVM_EDICT_NUM(i);
2587                 if (ent->priv.server->free)
2588                         continue;
2589                 active++;
2590                 if (ent->fields.server->solid)
2591                         solid++;
2592                 if (ent->fields.server->model)
2593                         models++;
2594                 if (ent->fields.server->movetype == MOVETYPE_STEP)
2595                         step++;
2596         }
2597
2598         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
2599         Con_Printf("active    :%3i\n", active);
2600         Con_Printf("view      :%3i\n", models);
2601         Con_Printf("touch     :%3i\n", solid);
2602         Con_Printf("step      :%3i\n", step);
2603 }
2604
2605 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
2606 {
2607         // remove things from different skill levels or deathmatch
2608         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
2609         {
2610                 if (deathmatch.integer)
2611                 {
2612                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
2613                         {
2614                                 return false;
2615                         }
2616                 }
2617                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
2618                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
2619                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
2620                 {
2621                         return false;
2622                 }
2623         }
2624         return true;
2625 }
2626
2627 static void SV_VM_Setup(void)
2628 {
2629         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
2630         extern cvar_t csqc_progcrc;
2631         extern cvar_t csqc_progsize;
2632         size_t csprogsdatasize;
2633         PRVM_Begin;
2634         PRVM_InitProg( PRVM_SERVERPROG );
2635
2636         // allocate the mempools
2637         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
2638         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
2639         prog->builtins = vm_sv_builtins;
2640         prog->numbuiltins = vm_sv_numbuiltins;
2641         prog->headercrc = PROGHEADER_CRC;
2642         prog->max_edicts = 512;
2643         prog->limit_edicts = MAX_EDICTS;
2644         prog->reserved_edicts = svs.maxclients;
2645         prog->edictprivate_size = sizeof(edict_engineprivate_t);
2646         prog->name = "server";
2647         prog->extensionstring = vm_sv_extensions;
2648         prog->loadintoworld = true;
2649
2650         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
2651         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
2652         prog->init_edict = SV_VM_CB_InitEdict;
2653         prog->free_edict = SV_VM_CB_FreeEdict;
2654         prog->count_edicts = SV_VM_CB_CountEdicts;
2655         prog->load_edict = SV_VM_CB_LoadEdict;
2656         prog->init_cmd = VM_SV_Cmd_Init;
2657         prog->reset_cmd = VM_SV_Cmd_Reset;
2658         prog->error_cmd = Host_Error;
2659
2660         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
2661         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
2662
2663         // some mods compiled with scrambling compilers lack certain critical
2664         // global names and field names such as "self" and "time" and "nextthink"
2665         // so we have to set these offsets manually, matching the entvars_t
2666         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
2667         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
2668         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
2669         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
2670         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
2671         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
2672         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
2673         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
2674         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
2675         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
2676         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
2677         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
2678         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
2679         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
2680         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
2681         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
2682         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
2683         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
2684         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
2685         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
2686         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
2687         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
2688         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
2689         // OP_STATE is always supported on server (due to entvars_t)
2690         prog->flag |= PRVM_OP_STATE;
2691
2692         VM_CustomStats_Clear();//[515]: csqc
2693
2694         PRVM_End;
2695
2696         // 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
2697         sv.csqc_progname[0] = 0;
2698         sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
2699         sv.csqc_progsize = csprogsdatasize;
2700         if (sv.csqc_progsize > 0)
2701         {
2702                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2703                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2704         }
2705 }
2706
2707 void SV_VM_Begin(void)
2708 {
2709         PRVM_Begin;
2710         PRVM_SetProg( PRVM_SERVERPROG );
2711
2712         prog->globals.server->time = (float) sv.time;
2713 }
2714
2715 void SV_VM_End(void)
2716 {
2717         PRVM_End;
2718 }