sv_main.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // sv_main.c -- server main program
  21
  22 #include "quakedef.h"
  23 #include "sv_demo.h"
  24 #include "libcurl.h"
  25 #include "csprogs.h"
  26
  27 static void SV_SaveEntFile_f(void);
  28 static void SV_StartDownload_f(void);
  29 static void SV_Download_f(void);
  30 static void SV_VM_Setup();
  31
  32 void VM_CustomStats_Clear (void);
  33 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
  34
  35 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
  36 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
  37 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
  38 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
  39 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
  40 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
  41 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
  42 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
  43 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
  44 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
  45 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
  46
  47 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
  48 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
  49 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
  50 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
  51 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
  52 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
  53 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
  54 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
  55 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
  56 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
  57 cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "64", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
  58 cvar_t sv_checkforpacketsduringsleep = {0, "sv_checkforpacketsduringsleep", "0", "uses select() function to wait between frames which can be interrupted by packets being received, instead of Sleep()/usleep()/SDL_Sleep() functions which do not check for packets"};
  59 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
  60 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
  61 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
  62 cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "4", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
  63 cvar_t sv_cullentities_nevercullbmodels = {0, "sv_cullentities_nevercullbmodels", "0", "if enabled the clients are always notified of moving doors and lifts and other submodels of world (warning: eats a lot of network bandwidth on some levels!)"};
  64 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
  65 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
  66 cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "0", "somewhat slow but very tight culling of hidden entities, minimizes network traffic and makes wallhack cheats useless"};
  67 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  68 cvar_t sv_cullentities_trace_delay_players = {0, "sv_cullentities_trace_delay_players", "0.2", "number of seconds until the entity gets actually culled if it is a player entity"};
  69 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  70 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
  71 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
  72 cvar_t sv_cullentities_trace_samples_extra = {0, "sv_cullentities_trace_samples_extra", "2", "number of samples to test for entity culling when the entity affects its surroundings by e.g. dlight"};
  73 cvar_t sv_cullentities_trace_samples_players = {0, "sv_cullentities_trace_samples_players", "8", "number of samples to test for entity culling when the entity is a player entity"};
  74 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
  75 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
  76 cvar_t sv_edgefriction = {0, "edgefriction", "1", "how much you slow down when nearing a ledge you might fall off, multiplier of sv_friction (Quake used 2, QuakeWorld used 1 due to a bug in physics code)"};
  77 cvar_t sv_entpatch = {0, "sv_entpatch", "1", "enables loading of .ent files to override entities in the bsp (for example Threewave CTF server pack contains .ent patch files enabling play of CTF on id1 maps)"};
  78 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "1", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
  79 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
  80 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
  81 cvar_t sv_gameplayfix_blowupfallenzombies = {0, "sv_gameplayfix_blowupfallenzombies", "1", "causes findradius to detect SOLID_NOT entities such as zombies and corpses on the floor, allowing splash damage to apply to them"};
  82 cvar_t sv_gameplayfix_delayprojectiles = {0, "sv_gameplayfix_delayprojectiles", "1", "causes entities to not move on the same frame they are spawned, meaning that projectiles wait until the next frame to perform their first move, giving proper interpolation and rocket trails, but making weapons harder to use at low framerates"};
  83 cvar_t sv_gameplayfix_droptofloorstartsolid = {0, "sv_gameplayfix_droptofloorstartsolid", "1", "prevents items and monsters that start in a solid area from falling out of the level (makes droptofloor treat trace_startsolid as an acceptable outcome)"};
  84 cvar_t sv_gameplayfix_droptofloorstartsolid_nudgetocorrect = {0, "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect", "1", "tries to nudge stuck items and monsters out of walls before droptofloor is performed"};
  85 cvar_t sv_gameplayfix_easierwaterjump = {0, "sv_gameplayfix_easierwaterjump", "1", "changes water jumping to make it easier to get out of water (exactly like in QuakeWorld)"};
  86 cvar_t sv_gameplayfix_findradiusdistancetobox = {0, "sv_gameplayfix_findradiusdistancetobox", "1", "causes findradius to check the distance to the corner of a box rather than the center of the box, makes findradius detect bmodels such as very large doors that would otherwise be unaffected by splash damage"};
  87 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
  88 cvar_t sv_gameplayfix_multiplethinksperframe = {0, "sv_gameplayfix_multiplethinksperframe", "1", "allows entities to think more often than the server framerate, primarily useful for very high fire rate weapons"};
  89 cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
  90 cvar_t sv_gameplayfix_setmodelrealbox = {0, "sv_gameplayfix_setmodelrealbox", "1", "fixes a bug in Quake that made setmodel always set the entity box to ('-16 -16 -16', '16 16 16') rather than properly checking the model box, breaks some poorly coded mods"};
  91 cvar_t sv_gameplayfix_stepdown = {0, "sv_gameplayfix_stepdown", "0", "attempts to step down stairs, not just up them (prevents the familiar thud..thud..thud.. when running down stairs and slopes)"};
  92 cvar_t sv_gameplayfix_stepwhilejumping = {0, "sv_gameplayfix_stepwhilejumping", "1", "applies step-up onto a ledge even while airborn, useful if you would otherwise just-miss the floor when running across small areas with gaps (for instance running across the moving platforms in dm2, or jumping to the megahealth and red armor in dm2 rather than using the bridge)"};
  93 cvar_t sv_gameplayfix_swiminbmodels = {0, "sv_gameplayfix_swiminbmodels", "1", "causes pointcontents (used to determine if you are in a liquid) to check bmodel entities as well as the world model, so you can swim around in (possibly moving) water bmodel entities"};
  94 cvar_t sv_gameplayfix_upwardvelocityclearsongroundflag = {0, "sv_gameplayfix_upwardvelocityclearsongroundflag", "1", "prevents monsters, items, and most other objects from being stuck to the floor when pushed around by damage, and other situations in mods"};
  95 cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
  96 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
  97 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
  98 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
  99 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
 100 cvar_t sv_maxairspeed = {0, "sv_maxairspeed", "30", "maximum speed a player can accelerate to when airborn (note that it is possible to completely stop by moving the opposite direction)"};
 101 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
 102 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
 103 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
 104 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
 105 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
 106 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
 107 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
 108 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
 109 cvar_t sv_random_seed = {0, "sv_random_seed", "", "random seed; when set, on every map start this random seed is used to initialize the random number generator. Don't touch it unless for benchmarking or debugging"};
 110 cvar_t sv_ratelimitlocalplayer = {0, "sv_ratelimitlocalplayer", "0", "whether to apply rate limiting to the local player in a listen server (only useful for testing)"};
 111 cvar_t sv_sound_land = {0, "sv_sound_land", "demon/dland2.wav", "sound to play when MOVETYPE_STEP entity hits the ground at high speed (empty cvar disables the sound)"};
 112 cvar_t sv_sound_watersplash = {0, "sv_sound_watersplash", "misc/h2ohit1.wav", "sound to play when MOVETYPE_FLY/TOSS/BOUNCE/STEP entity enters or leaves water (empty cvar disables the sound)"};
 113 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
 114 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
 115 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
 116 cvar_t sv_wateraccelerate = {0, "sv_wateraccelerate", "-1", "rate at which a player accelerates to sv_maxspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
 117 cvar_t sv_waterfriction = {CVAR_NOTIFY, "sv_waterfriction","-1", "how fast you slow down, if less than 0 the sv_friction variable is used instead"};
 118 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.0138889", "how long a server frame is in seconds, 0.05 is 20fps server rate, 0.1 is 10fps (can not be set higher than 0.1), 0 runs as many server frames as possible (makes games against bots a little smoother, overwhelms network players), 0.0138889 matches QuakeWorld physics"};
 119 cvar_t teamplay = {CVAR_NOTIFY, "teamplay","0", "teamplay mode, values depend on mod but typically 0 = no teams, 1 = no team damage no self damage, 2 = team damage and self damage, some mods support 3 = no team damage but can damage self"};
 120 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
 121
 122 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 123 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 124 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 125 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 126 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 127 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
 128 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
 129 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
 130 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
 131 cvar_t temp1 = {0, "temp1","0", "general cvar for mods to use, in stock id1 this selects which death animation to use on players (0 = random death, other values select specific death scenes)"};
 132
 133 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
 134 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
 135 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
 136 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
 137 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
 138 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
 139 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
 140 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
 141 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
 142 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
 143 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
 144 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
 145 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
 146 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
 147 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
 148 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
 149 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
 150 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
 151 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
 152 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
 153 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 154
 155 cvar_t sv_autodemo_perclient = {CVAR_SAVE, "sv_autodemo_perclient", "0", "set to 1 to enable autorecorded per-client demos (they'll start to record at the beginning of a match); set it to 2 to also record client->server packets (for debugging)"};
 156 cvar_t sv_autodemo_perclient_nameformat = {CVAR_SAVE, "sv_autodemo_perclient_nameformat", "sv_autodemos/%Y-%m-%d_%H-%M", "The format of the sv_autodemo_perclient filename, followed by the map name, the client number and the IP address + port number, separated by underscores" };
 157
 158
 159 server_t sv;
 160 server_static_t svs;
 161
 162 mempool_t *sv_mempool = NULL;
 163
 164 extern cvar_t slowmo;
 165 extern float            scr_centertime_off;
 166
 167 // MUST match effectnameindex_t in client.h
 168 static const char *standardeffectnames[EFFECT_TOTAL] =
 169 {
 170         "",
 171         "TE_GUNSHOT",
 172         "TE_GUNSHOTQUAD",
 173         "TE_SPIKE",
 174         "TE_SPIKEQUAD",
 175         "TE_SUPERSPIKE",
 176         "TE_SUPERSPIKEQUAD",
 177         "TE_WIZSPIKE",
 178         "TE_KNIGHTSPIKE",
 179         "TE_EXPLOSION",
 180         "TE_EXPLOSIONQUAD",
 181         "TE_TAREXPLOSION",
 182         "TE_TELEPORT",
 183         "TE_LAVASPLASH",
 184         "TE_SMALLFLASH",
 185         "TE_FLAMEJET",
 186         "EF_FLAME",
 187         "TE_BLOOD",
 188         "TE_SPARK",
 189         "TE_PLASMABURN",
 190         "TE_TEI_G3",
 191         "TE_TEI_SMOKE",
 192         "TE_TEI_BIGEXPLOSION",
 193         "TE_TEI_PLASMAHIT",
 194         "EF_STARDUST",
 195         "TR_ROCKET",
 196         "TR_GRENADE",
 197         "TR_BLOOD",
 198         "TR_WIZSPIKE",
 199         "TR_SLIGHTBLOOD",
 200         "TR_KNIGHTSPIKE",
 201         "TR_VORESPIKE",
 202         "TR_NEHAHRASMOKE",
 203         "TR_NEXUIZPLASMA",
 204         "TR_GLOWTRAIL",
 205         "SVC_PARTICLE"
 206 };
 207
 208 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
 209
 210 prvm_required_field_t reqfields[] =
 211 {
 212         {ev_entity, "cursor_trace_ent"},
 213         {ev_entity, "drawonlytoclient"},
 214         {ev_entity, "exteriormodeltoclient"},
 215         {ev_entity, "nodrawtoclient"},
 216         {ev_entity, "tag_entity"},
 217         {ev_entity, "viewmodelforclient"},
 218         {ev_float, "SendFlags"},
 219         {ev_float, "Version"},
 220         {ev_float, "alpha"},
 221         {ev_float, "ammo_cells1"},
 222         {ev_float, "ammo_lava_nails"},
 223         {ev_float, "ammo_multi_rockets"},
 224         {ev_float, "ammo_nails1"},
 225         {ev_float, "ammo_plasma"},
 226         {ev_float, "ammo_rockets1"},
 227         {ev_float, "ammo_shells1"},
 228         {ev_float, "button3"},
 229         {ev_float, "button4"},
 230         {ev_float, "button5"},
 231         {ev_float, "button6"},
 232         {ev_float, "button7"},
 233         {ev_float, "button8"},
 234         {ev_float, "button9"},
 235         {ev_float, "button10"},
 236         {ev_float, "button11"},
 237         {ev_float, "button12"},
 238         {ev_float, "button13"},
 239         {ev_float, "button14"},
 240         {ev_float, "button15"},
 241         {ev_float, "button16"},
 242         {ev_float, "buttonchat"},
 243         {ev_float, "buttonuse"},
 244         {ev_float, "clientcolors"},
 245         {ev_float, "cursor_active"},
 246         {ev_float, "disableclientprediction"},
 247         {ev_float, "fullbright"},
 248         {ev_float, "glow_color"},
 249         {ev_float, "glow_size"},
 250         {ev_float, "glow_trail"},
 251         {ev_float, "gravity"},
 252         {ev_float, "idealpitch"},
 253         {ev_float, "items2"},
 254         {ev_float, "light_lev"},
 255         {ev_float, "modelflags"},
 256         {ev_float, "pflags"},
 257         {ev_float, "ping"},
 258         {ev_float, "pitch_speed"},
 259         {ev_float, "pmodel"},
 260         {ev_float, "renderamt"}, // HalfLife support
 261         {ev_float, "rendermode"}, // HalfLife support
 262         {ev_float, "scale"},
 263         {ev_float, "style"},
 264         {ev_float, "tag_index"},
 265         {ev_float, "viewzoom"},
 266         {ev_function, "SendEntity"},
 267         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
 268         {ev_function, "customizeentityforclient"},
 269         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
 270         {ev_string, "netaddress"},
 271         {ev_string, "playermodel"},
 272         {ev_string, "playerskin"},
 273         {ev_vector, "color"},
 274         {ev_vector, "colormod"},
 275         {ev_vector, "cursor_screen"},
 276         {ev_vector, "cursor_trace_endpos"},
 277         {ev_vector, "cursor_trace_start"},
 278         {ev_vector, "movement"},
 279         {ev_vector, "punchvector"},
 280 };
 281
 282
 283
 284 //============================================================================
 285
 286 void SV_AreaStats_f(void)
 287 {
 288         World_PrintAreaStats(&sv.world, "server");
 289 }
 290
 291 /*
 292 ===============
 293 SV_Init
 294 ===============
 295 */
 296 void SV_Init (void)
 297 {
 298         // init the csqc progs cvars, since they are updated/used by the server code
 299         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
 300         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
 301         extern cvar_t csqc_progcrc;
 302         extern cvar_t csqc_progsize;
 303         Cvar_RegisterVariable (&csqc_progname);
 304         Cvar_RegisterVariable (&csqc_progcrc);
 305         Cvar_RegisterVariable (&csqc_progsize);
 306
 307         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
 308         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
 309         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
 310         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
 311
 312         Cvar_RegisterVariable (&coop);
 313         Cvar_RegisterVariable (&deathmatch);
 314         Cvar_RegisterVariable (&fraglimit);
 315         Cvar_RegisterVariable (&gamecfg);
 316         Cvar_RegisterVariable (&noexit);
 317         Cvar_RegisterVariable (&nomonsters);
 318         Cvar_RegisterVariable (&pausable);
 319         Cvar_RegisterVariable (&pr_checkextension);
 320         Cvar_RegisterVariable (&samelevel);
 321         Cvar_RegisterVariable (&skill);
 322         Cvar_RegisterVariable (&slowmo);
 323         Cvar_RegisterVariable (&sv_accelerate);
 324         Cvar_RegisterVariable (&sv_aim);
 325         Cvar_RegisterVariable (&sv_airaccel_qw);
 326         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
 327         Cvar_RegisterVariable (&sv_airaccelerate);
 328         Cvar_RegisterVariable (&sv_allowdownloads);
 329         Cvar_RegisterVariable (&sv_allowdownloads_archive);
 330         Cvar_RegisterVariable (&sv_allowdownloads_config);
 331         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
 332         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
 333         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
 334         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
 335         Cvar_RegisterVariable (&sv_clmovement_enable);
 336         Cvar_RegisterVariable (&sv_clmovement_minping);
 337         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
 338         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
 339         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
 340         Cvar_RegisterVariable (&sv_cullentities_pvs);
 341         Cvar_RegisterVariable (&sv_cullentities_stats);
 342         Cvar_RegisterVariable (&sv_cullentities_trace);
 343         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
 344         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
 345         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
 346         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
 347         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
 348         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
 349         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
 350         Cvar_RegisterVariable (&sv_debugmove);
 351         Cvar_RegisterVariable (&sv_echobprint);
 352         Cvar_RegisterVariable (&sv_edgefriction);
 353         Cvar_RegisterVariable (&sv_entpatch);
 354         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
 355         Cvar_RegisterVariable (&sv_freezenonclients);
 356         Cvar_RegisterVariable (&sv_friction);
 357         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
 358         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
 359         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
 360         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
 361         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
 362         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
 363         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
 364         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
 365         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
 366         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
 367         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
 368         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
 369         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
 370         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
 371         Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
 372         Cvar_RegisterVariable (&sv_gravity);
 373         Cvar_RegisterVariable (&sv_idealpitchscale);
 374         Cvar_RegisterVariable (&sv_jumpstep);
 375         Cvar_RegisterVariable (&sv_jumpvelocity);
 376         Cvar_RegisterVariable (&sv_maxairspeed);
 377         Cvar_RegisterVariable (&sv_maxrate);
 378         Cvar_RegisterVariable (&sv_maxspeed);
 379         Cvar_RegisterVariable (&sv_maxvelocity);
 380         Cvar_RegisterVariable (&sv_newflymove);
 381         Cvar_RegisterVariable (&sv_nostep);
 382         Cvar_RegisterVariable (&sv_playerphysicsqc);
 383         Cvar_RegisterVariable (&sv_progs);
 384         Cvar_RegisterVariable (&sv_protocolname);
 385         Cvar_RegisterVariable (&sv_random_seed);
 386         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
 387         Cvar_RegisterVariable (&sv_sound_land);
 388         Cvar_RegisterVariable (&sv_sound_watersplash);
 389         Cvar_RegisterVariable (&sv_stepheight);
 390         Cvar_RegisterVariable (&sv_stopspeed);
 391         Cvar_RegisterVariable (&sv_wallfriction);
 392         Cvar_RegisterVariable (&sv_wateraccelerate);
 393         Cvar_RegisterVariable (&sv_waterfriction);
 394         Cvar_RegisterVariable (&sys_ticrate);
 395         Cvar_RegisterVariable (&teamplay);
 396         Cvar_RegisterVariable (&timelimit);
 397
 398         Cvar_RegisterVariable (&saved1);
 399         Cvar_RegisterVariable (&saved2);
 400         Cvar_RegisterVariable (&saved3);
 401         Cvar_RegisterVariable (&saved4);
 402         Cvar_RegisterVariable (&savedgamecfg);
 403         Cvar_RegisterVariable (&scratch1);
 404         Cvar_RegisterVariable (&scratch2);
 405         Cvar_RegisterVariable (&scratch3);
 406         Cvar_RegisterVariable (&scratch4);
 407         Cvar_RegisterVariable (&temp1);
 408
 409         // LordHavoc: Nehahra uses these to pass data around cutscene demos
 410         if (gamemode == GAME_NEHAHRA)
 411         {
 412                 Cvar_RegisterVariable (&nehx00);
 413                 Cvar_RegisterVariable (&nehx01);
 414                 Cvar_RegisterVariable (&nehx02);
 415                 Cvar_RegisterVariable (&nehx03);
 416                 Cvar_RegisterVariable (&nehx04);
 417                 Cvar_RegisterVariable (&nehx05);
 418                 Cvar_RegisterVariable (&nehx06);
 419                 Cvar_RegisterVariable (&nehx07);
 420                 Cvar_RegisterVariable (&nehx08);
 421                 Cvar_RegisterVariable (&nehx09);
 422                 Cvar_RegisterVariable (&nehx10);
 423                 Cvar_RegisterVariable (&nehx11);
 424                 Cvar_RegisterVariable (&nehx12);
 425                 Cvar_RegisterVariable (&nehx13);
 426                 Cvar_RegisterVariable (&nehx14);
 427                 Cvar_RegisterVariable (&nehx15);
 428                 Cvar_RegisterVariable (&nehx16);
 429                 Cvar_RegisterVariable (&nehx17);
 430                 Cvar_RegisterVariable (&nehx18);
 431                 Cvar_RegisterVariable (&nehx19);
 432         }
 433         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
 434
 435         Cvar_RegisterVariable (&sv_autodemo_perclient);
 436         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
 437
 438         // any special defaults for gamemodes go here
 439         if (gamemode == GAME_HIPNOTIC)
 440         {
 441                 // 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.
 442                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
 443                 // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
 444                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
 445         }
 446         if (gamemode == GAME_ROGUE)
 447         {
 448                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 449                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
 450         }
 451
 452         sv_mempool = Mem_AllocPool("server", 0, NULL);
 453 }
 454
 455 static void SV_SaveEntFile_f(void)
 456 {
 457         char basename[MAX_QPATH];
 458         if (!sv.active || !sv.worldmodel)
 459         {
 460                 Con_Print("Not running a server\n");
 461                 return;
 462         }
 463         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
 464         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
 465 }
 466
 467
 468 /*
 469 =============================================================================
 470
 471 EVENT MESSAGES
 472
 473 =============================================================================
 474 */
 475
 476 /*
 477 ==================
 478 SV_StartParticle
 479
 480 Make sure the event gets sent to all clients
 481 ==================
 482 */
 483 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
 484 {
 485         int i;
 486
 487         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
 488                 return;
 489         MSG_WriteByte (&sv.datagram, svc_particle);
 490         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 491         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 492         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 493         for (i=0 ; i<3 ; i++)
 494                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
 495         MSG_WriteByte (&sv.datagram, count);
 496         MSG_WriteByte (&sv.datagram, color);
 497         SV_FlushBroadcastMessages();
 498 }
 499
 500 /*
 501 ==================
 502 SV_StartEffect
 503
 504 Make sure the event gets sent to all clients
 505 ==================
 506 */
 507 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 508 {
 509         if (modelindex >= 256 || startframe >= 256)
 510         {
 511                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 512                         return;
 513                 MSG_WriteByte (&sv.datagram, svc_effect2);
 514                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 515                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 516                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 517                 MSG_WriteShort (&sv.datagram, modelindex);
 518                 MSG_WriteShort (&sv.datagram, startframe);
 519                 MSG_WriteByte (&sv.datagram, framecount);
 520                 MSG_WriteByte (&sv.datagram, framerate);
 521         }
 522         else
 523         {
 524                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 525                         return;
 526                 MSG_WriteByte (&sv.datagram, svc_effect);
 527                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 528                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 529                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 530                 MSG_WriteByte (&sv.datagram, modelindex);
 531                 MSG_WriteByte (&sv.datagram, startframe);
 532                 MSG_WriteByte (&sv.datagram, framecount);
 533                 MSG_WriteByte (&sv.datagram, framerate);
 534         }
 535         SV_FlushBroadcastMessages();
 536 }
 537
 538 /*
 539 ==================
 540 SV_StartSound
 541
 542 Each entity can have eight independant sound sources, like voice,
 543 weapon, feet, etc.
 544
 545 Channel 0 is an auto-allocate channel, the others override anything
 546 already running on that entity/channel pair.
 547
 548 An attenuation of 0 will play full volume everywhere in the level.
 549 Larger attenuations will drop off.  (max 4 attenuation)
 550
 551 ==================
 552 */
 553 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
 554 {
 555         int sound_num, field_mask, i, ent;
 556
 557         if (volume < 0 || volume > 255)
 558         {
 559                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
 560                 return;
 561         }
 562
 563         if (attenuation < 0 || attenuation > 4)
 564         {
 565                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
 566                 return;
 567         }
 568
 569         if (channel < 0 || channel > 7)
 570         {
 571                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
 572                 return;
 573         }
 574
 575         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 576                 return;
 577
 578 // find precache number for sound
 579         sound_num = SV_SoundIndex(sample, 1);
 580         if (!sound_num)
 581                 return;
 582
 583         ent = PRVM_NUM_FOR_EDICT(entity);
 584
 585         field_mask = 0;
 586         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 587                 field_mask |= SND_VOLUME;
 588         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 589                 field_mask |= SND_ATTENUATION;
 590         if (ent >= 8192)
 591                 field_mask |= SND_LARGEENTITY;
 592         if (sound_num >= 256 || channel >= 8)
 593                 field_mask |= SND_LARGESOUND;
 594
 595 // directed messages go only to the entity they are targeted on
 596         MSG_WriteByte (&sv.datagram, svc_sound);
 597         MSG_WriteByte (&sv.datagram, field_mask);
 598         if (field_mask & SND_VOLUME)
 599                 MSG_WriteByte (&sv.datagram, volume);
 600         if (field_mask & SND_ATTENUATION)
 601                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 602         if (field_mask & SND_LARGEENTITY)
 603         {
 604                 MSG_WriteShort (&sv.datagram, ent);
 605                 MSG_WriteByte (&sv.datagram, channel);
 606         }
 607         else
 608                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 609         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
 610                 MSG_WriteShort (&sv.datagram, sound_num);
 611         else
 612                 MSG_WriteByte (&sv.datagram, sound_num);
 613         for (i = 0;i < 3;i++)
 614                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
 615         SV_FlushBroadcastMessages();
 616 }
 617
 618 /*
 619 ==================
 620 SV_StartPointSound
 621
 622 Nearly the same logic as SV_StartSound, except an origin
 623 instead of an entity is provided and channel is omitted.
 624
 625 The entity sent to the client is 0 (world) and the channel
 626 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
 627 function, therefore the check for it is omitted.
 628
 629 ==================
 630 */
 631 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
 632 {
 633         int sound_num, field_mask, i;
 634
 635         if (volume < 0 || volume > 255)
 636         {
 637                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
 638                 return;
 639         }
 640
 641         if (attenuation < 0 || attenuation > 4)
 642         {
 643                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
 644                 return;
 645         }
 646
 647         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 648                 return;
 649
 650         // find precache number for sound
 651         sound_num = SV_SoundIndex(sample, 1);
 652         if (!sound_num)
 653                 return;
 654
 655         field_mask = 0;
 656         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 657                 field_mask |= SND_VOLUME;
 658         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 659                 field_mask |= SND_ATTENUATION;
 660         if (sound_num >= 256)
 661                 field_mask |= SND_LARGESOUND;
 662
 663 // directed messages go only to the entity they are targeted on
 664         MSG_WriteByte (&sv.datagram, svc_sound);
 665         MSG_WriteByte (&sv.datagram, field_mask);
 666         if (field_mask & SND_VOLUME)
 667                 MSG_WriteByte (&sv.datagram, volume);
 668         if (field_mask & SND_ATTENUATION)
 669                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 670         // Always write entnum 0 for the world entity
 671         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
 672         if (field_mask & SND_LARGESOUND)
 673                 MSG_WriteShort (&sv.datagram, sound_num);
 674         else
 675                 MSG_WriteByte (&sv.datagram, sound_num);
 676         for (i = 0;i < 3;i++)
 677                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
 678         SV_FlushBroadcastMessages();
 679 }
 680
 681 /*
 682 ==============================================================================
 683
 684 CLIENT SPAWNING
 685
 686 ==============================================================================
 687 */
 688
 689 /*
 690 ================
 691 SV_SendServerinfo
 692
 693 Sends the first message from the server to a connected client.
 694 This will be sent on the initial connection and upon each server load.
 695 ================
 696 */
 697 void SV_SendServerinfo (client_t *client)
 698 {
 699         int i;
 700         char message[128];
 701
 702         // we know that this client has a netconnection and thus is not a bot
 703
 704         // edicts get reallocated on level changes, so we need to update it here
 705         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
 706
 707         // clear cached stuff that depends on the level
 708         client->weaponmodel[0] = 0;
 709         client->weaponmodelindex = 0;
 710
 711         // LordHavoc: clear entityframe tracking
 712         client->latestframenum = 0;
 713
 714         // initialize the movetime, so a speedhack can't make use of the time before this client joined
 715         client->cmd.time = sv.time;
 716
 717         if (client->entitydatabase)
 718                 EntityFrame_FreeDatabase(client->entitydatabase);
 719         if (client->entitydatabase4)
 720                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 721         if (client->entitydatabase5)
 722                 EntityFrame5_FreeDatabase(client->entitydatabase5);
 723
 724         memset(client->stats, 0, sizeof(client->stats));
 725         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
 726
 727         if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
 728         {
 729                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
 730                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
 731                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
 732                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
 733                 else
 734                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
 735         }
 736
 737         // reset csqc entity versions
 738         for (i = 0;i < prog->max_edicts;i++)
 739         {
 740                 client->csqcentityscope[i] = 0;
 741                 client->csqcentitysendflags[i] = 0xFFFFFF;
 742                 client->csqcentityglobalhistory[i] = 0;
 743         }
 744         for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
 745         {
 746                 client->csqcentityframehistory[i].num = 0;
 747                 client->csqcentityframehistory[i].framenum = -1;
 748         }
 749         client->csqcnumedicts = 0;
 750         client->csqcentityframehistory_next = 0;
 751
 752         SZ_Clear (&client->netconnection->message);
 753         MSG_WriteByte (&client->netconnection->message, svc_print);
 754         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
 755         MSG_WriteString (&client->netconnection->message,message);
 756
 757         SV_StopDemoRecording(client); // to split up demos into different files
 758         if(sv_autodemo_perclient.integer && client->netconnection)
 759         {
 760                 char demofile[MAX_OSPATH];
 761                 char levelname[MAX_QPATH];
 762                 char ipaddress[MAX_QPATH];
 763                 size_t i;
 764
 765                 // start a new demo file
 766                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
 767                 if (strrchr(levelname, '.'))
 768                         *(strrchr(levelname, '.')) = 0;
 769
 770                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
 771                 for(i = 0; ipaddress[i]; ++i)
 772                         if(!isalnum(ipaddress[i]))
 773                                 ipaddress[i] = '-';
 774                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
 775
 776                 SV_StartDemoRecording(client, demofile, -1);
 777         }
 778
 779         //[515]: init csprogs according to version of svprogs, check the crc, etc.
 780         if (sv.csqc_progname[0])
 781         {
 782                 prvm_eval_t *val;
 783                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
 784                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 785                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
 786                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 787                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
 788                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 789                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
 790
 791                 if(client->sv_demo_file != NULL)
 792                 {
 793                         int i;
 794                         char buf[NET_MAXMESSAGE];
 795                         sizebuf_t sb;
 796
 797                         sb.data = (unsigned char *) buf;
 798                         sb.maxsize = sizeof(buf);
 799                         i = 0;
 800                         while(MakeDownloadPacket(sv.csqc_progname, sv.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
 801                                 SV_WriteDemoMessage(client, &sb, false);
 802                 }
 803
 804                 //[515]: init stufftext string (it is sent before svc_serverinfo)
 805                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
 806                 if (val)
 807                 {
 808                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 809                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
 810                 }
 811         }
 812
 813         //if (sv_allowdownloads.integer)
 814         // always send the info that the server supports the protocol, even if downloads are forbidden
 815         // only because of that, the CSQC exception can work
 816         {
 817                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 818                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
 819         }
 820
 821         // send at this time so it's guaranteed to get executed at the right time
 822         {
 823                 client_t *save;
 824                 save = host_client;
 825                 host_client = client;
 826                 Curl_SendRequirements();
 827                 host_client = save;
 828         }
 829
 830         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
 831         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
 832         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
 833
 834         if (!coop.integer && deathmatch.integer)
 835                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
 836         else
 837                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
 838
 839         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
 840
 841         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
 842                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
 843         MSG_WriteByte (&client->netconnection->message, 0);
 844
 845         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
 846                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
 847         MSG_WriteByte (&client->netconnection->message, 0);
 848
 849 // send music
 850         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
 851         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 852         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 853
 854 // set view
 855 // store this in clientcamera, too
 856         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
 857         MSG_WriteByte (&client->netconnection->message, svc_setview);
 858         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
 859
 860         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
 861         MSG_WriteByte (&client->netconnection->message, 1);
 862
 863         client->spawned = false;                // need prespawn, spawn, etc
 864         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
 865
 866         // clear movement info until client enters the new level properly
 867         memset(&client->cmd, 0, sizeof(client->cmd));
 868         client->movesequence = 0;
 869 #ifdef NUM_PING_TIMES
 870         for (i = 0;i < NUM_PING_TIMES;i++)
 871                 client->ping_times[i] = 0;
 872         client->num_pings = 0;
 873 #endif
 874         client->ping = 0;
 875 }
 876
 877 /*
 878 ================
 879 SV_ConnectClient
 880
 881 Initializes a client_t for a new net connection.  This will only be called
 882 once for a player each game, not once for each level change.
 883 ================
 884 */
 885 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 886 {
 887         client_t                *client;
 888         int                             i;
 889         float                   spawn_parms[NUM_SPAWN_PARMS];
 890
 891         client = svs.clients + clientnum;
 892
 893 // set up the client_t
 894         if (sv.loadgame)
 895                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 896         memset (client, 0, sizeof(*client));
 897         client->active = true;
 898         client->netconnection = netconnection;
 899
 900         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
 901
 902         strlcpy(client->name, "unconnected", sizeof(client->name));
 903         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
 904         client->spawned = false;
 905         client->edict = PRVM_EDICT_NUM(clientnum+1);
 906         if (client->netconnection)
 907                 client->netconnection->message.allowoverflow = true;            // we can catch it
 908         // prepare the unreliable message buffer
 909         client->unreliablemsg.data = client->unreliablemsg_data;
 910         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
 911         // updated by receiving "rate" command from client, this is also the default if not using a DP client
 912         client->rate = 1000000000;
 913         // no limits for local player
 914         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
 915                 client->rate = 1000000000;
 916         client->connecttime = realtime;
 917
 918         if (sv.loadgame)
 919                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 920         else
 921         {
 922                 // call the progs to get default spawn parms for the new client
 923                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
 924                 prog->globals.server->self = 0;
 925                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
 926                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 927                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
 928
 929                 // set up the entity for this client (including .colormap, .team, etc)
 930                 PRVM_ED_ClearEdict(client->edict);
 931         }
 932
 933         // don't call SendServerinfo for a fresh botclient because its fields have
 934         // not been set up by the qc yet
 935         if (client->netconnection)
 936                 SV_SendServerinfo (client);
 937         else
 938                 client->spawned = true;
 939 }
 940
 941
 942 /*
 943 ===============================================================================
 944
 945 FRAME UPDATES
 946
 947 ===============================================================================
 948 */
 949
 950 /*
 951 =============================================================================
 952
 953 The PVS must include a small area around the client to allow head bobbing
 954 or other small motion on the client side.  Otherwise, a bob might cause an
 955 entity that should be visible to not show up, especially when the bob
 956 crosses a waterline.
 957
 958 =============================================================================
 959 */
 960
 961 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
 962 {
 963         int i;
 964         unsigned int sendflags;
 965         unsigned int version;
 966         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
 967         unsigned int customizeentityforclient;
 968         float f;
 969         vec3_t cullmins, cullmaxs;
 970         dp_model_t *model;
 971         prvm_eval_t *val, *val2;
 972
 973         // this 2 billion unit check is actually to detect NAN origins
 974         // (we really don't want to send those)
 975         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
 976                 return false;
 977
 978         // EF_NODRAW prevents sending for any reason except for your own
 979         // client, so we must keep all clients in this superset
 980         effects = (unsigned)ent->fields.server->effects;
 981
 982         // we can omit invisible entities with no effects that are not clients
 983         // LordHavoc: this could kill tags attached to an invisible entity, I
 984         // just hope we never have to support that case
 985         i = (int)ent->fields.server->modelindex;
 986         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
 987
 988         flags = 0;
 989         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
 990         glowsize = (unsigned char)bound(0, i, 255);
 991         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
 992                 flags |= RENDER_GLOWTRAIL;
 993         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
 994                 flags |= RENDER_VIEWMODEL;
 995
 996         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
 997         light[0] = (unsigned short)bound(0, f, 65535);
 998         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
 999         light[1] = (unsigned short)bound(0, f, 65535);
1000         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
1001         light[2] = (unsigned short)bound(0, f, 65535);
1002         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1003         light[3] = (unsigned short)bound(0, f, 65535);
1004         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1005         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1006
1007         if (gamemode == GAME_TENEBRAE)
1008         {
1009                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1010                 if (effects & 16)
1011                 {
1012                         effects &= ~16;
1013                         lightpflags |= PFLAGS_FULLDYNAMIC;
1014                 }
1015                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1016                 if (effects & 32)
1017                 {
1018                         effects &= ~32;
1019                         light[0] = (int)(0.2*256);
1020                         light[1] = (int)(1.0*256);
1021                         light[2] = (int)(0.2*256);
1022                         light[3] = 200;
1023                         lightpflags |= PFLAGS_FULLDYNAMIC;
1024                 }
1025         }
1026
1027         specialvisibilityradius = 0;
1028         if (lightpflags & PFLAGS_FULLDYNAMIC)
1029                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1030         if (glowsize)
1031                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1032         if (flags & RENDER_GLOWTRAIL)
1033                 specialvisibilityradius = max(specialvisibilityradius, 100);
1034         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1035         {
1036                 if (effects & EF_BRIGHTFIELD)
1037                         specialvisibilityradius = max(specialvisibilityradius, 80);
1038                 if (effects & EF_MUZZLEFLASH)
1039                         specialvisibilityradius = max(specialvisibilityradius, 100);
1040                 if (effects & EF_BRIGHTLIGHT)
1041                         specialvisibilityradius = max(specialvisibilityradius, 400);
1042                 if (effects & EF_DIMLIGHT)
1043                         specialvisibilityradius = max(specialvisibilityradius, 200);
1044                 if (effects & EF_RED)
1045                         specialvisibilityradius = max(specialvisibilityradius, 200);
1046                 if (effects & EF_BLUE)
1047                         specialvisibilityradius = max(specialvisibilityradius, 200);
1048                 if (effects & EF_FLAME)
1049                         specialvisibilityradius = max(specialvisibilityradius, 250);
1050                 if (effects & EF_STARDUST)
1051                         specialvisibilityradius = max(specialvisibilityradius, 100);
1052         }
1053
1054         // early culling checks
1055         // (final culling is done by SV_MarkWriteEntityStateToClient)
1056         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1057         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1058                 return false;
1059
1060         *cs = defaultstate;
1061         cs->active = true;
1062         cs->number = enumber;
1063         VectorCopy(ent->fields.server->origin, cs->origin);
1064         VectorCopy(ent->fields.server->angles, cs->angles);
1065         cs->flags = flags;
1066         cs->effects = effects;
1067         cs->colormap = (unsigned)ent->fields.server->colormap;
1068         cs->modelindex = modelindex;
1069         cs->skin = (unsigned)ent->fields.server->skin;
1070         cs->frame = (unsigned)ent->fields.server->frame;
1071         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1072         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1073         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1074         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1075         cs->customizeentityforclient = customizeentityforclient;
1076         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1077         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1078         cs->glowsize = glowsize;
1079
1080         // don't need to init cs->colormod because the defaultstate did that for us
1081         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1082         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1083         if (val->vector[0] || val->vector[1] || val->vector[2])
1084         {
1085                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1086                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1087                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1088         }
1089
1090         cs->modelindex = modelindex;
1091
1092         cs->alpha = 255;
1093         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1094         if (f)
1095         {
1096                 i = (int)f;
1097                 cs->alpha = (unsigned char)bound(0, i, 255);
1098         }
1099         // halflife
1100         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1101         if (f)
1102         {
1103                 i = (int)f;
1104                 cs->alpha = (unsigned char)bound(0, i, 255);
1105         }
1106
1107         cs->scale = 16;
1108         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1109         if (f)
1110         {
1111                 i = (int)f;
1112                 cs->scale = (unsigned char)bound(0, i, 255);
1113         }
1114
1115         cs->glowcolor = 254;
1116         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1117         if (f)
1118                 cs->glowcolor = (int)f;
1119
1120         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1121                 cs->effects |= EF_FULLBRIGHT;
1122
1123         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1124         if (val && val->_float)
1125                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1126
1127         if (ent->fields.server->movetype == MOVETYPE_STEP)
1128                 cs->flags |= RENDER_STEP;
1129         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)
1130                 cs->flags |= RENDER_LOWPRECISION;
1131         if (ent->fields.server->colormap >= 1024)
1132                 cs->flags |= RENDER_COLORMAPPED;
1133         if (cs->viewmodelforclient)
1134                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1135
1136         cs->light[0] = light[0];
1137         cs->light[1] = light[1];
1138         cs->light[2] = light[2];
1139         cs->light[3] = light[3];
1140         cs->lightstyle = lightstyle;
1141         cs->lightpflags = lightpflags;
1142
1143         cs->specialvisibilityradius = specialvisibilityradius;
1144
1145         // calculate the visible box of this entity (don't use the physics box
1146         // as that is often smaller than a model, and would not count
1147         // specialvisibilityradius)
1148         if ((model = sv.models[modelindex]) && (model->type != mod_null))
1149         {
1150                 float scale = cs->scale * (1.0f / 16.0f);
1151                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1152                 {
1153                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1154                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1155                 }
1156                 else if (cs->angles[1])
1157                 {
1158                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1159                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1160                 }
1161                 else
1162                 {
1163                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1164                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1165                 }
1166         }
1167         else
1168         {
1169                 // if there is no model (or it could not be loaded), use the physics box
1170                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1171                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1172         }
1173         if (specialvisibilityradius)
1174         {
1175                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1176                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1177                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1178                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1179                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1180                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1181         }
1182
1183         // calculate center of bbox for network prioritization purposes
1184         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1185
1186         // if culling box has moved, update pvs cluster links
1187         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1188         {
1189                 VectorCopy(cullmins, ent->priv.server->cullmins);
1190                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1191                 // a value of -1 for pvs_numclusters indicates that the links are not
1192                 // cached, and should be re-tested each time, this is the case if the
1193                 // culling box touches too many pvs clusters to store, or if the world
1194                 // model does not support FindBoxClusters
1195                 ent->priv.server->pvs_numclusters = -1;
1196                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1197                 {
1198                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1199                         if (i <= MAX_ENTITYCLUSTERS)
1200                                 ent->priv.server->pvs_numclusters = i;
1201                 }
1202         }
1203
1204         // we need to do some csqc entity upkeep here
1205         // get self.SendFlags and clear them
1206         // (to let the QC know that they've been read)
1207         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity);
1208         if (val->function)
1209         {
1210                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1211                 sendflags = (unsigned int)val->_float;
1212                 val->_float = 0;
1213                 // legacy self.Version system
1214                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1215                 if (val2->_float)
1216                 {
1217                         version = (unsigned int)val2->_float;
1218                         if (sv.csqcentityversion[enumber] != version)
1219                                 sendflags = 0xFFFFFF;
1220                         sv.csqcentityversion[enumber] = version;
1221                 }
1222                 // move sendflags into the per-client sendflags
1223                 if (sendflags)
1224                         for (i = 0;i < svs.maxclients;i++)
1225                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1226         }
1227
1228         return true;
1229 }
1230
1231 void SV_PrepareEntitiesForSending(void)
1232 {
1233         int e;
1234         prvm_edict_t *ent;
1235         // send all entities that touch the pvs
1236         sv.numsendentities = 0;
1237         sv.sendentitiesindex[0] = NULL;
1238         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1239         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1240         {
1241                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1242                 {
1243                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1244                         sv.numsendentities++;
1245                 }
1246         }
1247 }
1248
1249 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1250 {
1251         int isbmodel;
1252         dp_model_t *model;
1253         prvm_edict_t *ed;
1254         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1255                 return;
1256         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1257         sv.writeentitiestoclient_stats_totalentities++;
1258
1259         if (s->customizeentityforclient)
1260         {
1261                 prog->globals.server->self = s->number;
1262                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1263                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1264                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1265                         return;
1266         }
1267
1268         // never reject player
1269         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1270         {
1271                 // check various rejection conditions
1272                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1273                         return;
1274                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1275                         return;
1276                 if (s->effects & EF_NODRAW)
1277                         return;
1278                 // LordHavoc: only send entities with a model or important effects
1279                 if (!s->modelindex && s->specialvisibilityradius == 0)
1280                         return;
1281
1282                 isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
1283                 // viewmodels don't have visibility checking
1284                 if (s->viewmodelforclient)
1285                 {
1286                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1287                                 return;
1288                 }
1289                 else if (s->tagentity)
1290                 {
1291                         // tag attached entities simply check their parent
1292                         if (!sv.sendentitiesindex[s->tagentity])
1293                                 return;
1294                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1295                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1296                                 return;
1297                 }
1298                 // always send world submodels in newer protocols because they don't
1299                 // generate much traffic (in old protocols they hog bandwidth)
1300                 // but only if sv_cullentities_nevercullbmodels is off
1301                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1302                 {
1303                         // entity has survived every check so far, check if visible
1304                         ed = PRVM_EDICT_NUM(s->number);
1305
1306                         // if not touching a visible leaf
1307                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1308                         {
1309                                 if (ed->priv.server->pvs_numclusters < 0)
1310                                 {
1311                                         // entity too big for clusters list
1312                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1313                                         {
1314                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1315                                                 return;
1316                                         }
1317                                 }
1318                                 else
1319                                 {
1320                                         int i;
1321                                         // check cached clusters list
1322                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1323                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1324                                                         break;
1325                                         if (i == ed->priv.server->pvs_numclusters)
1326                                         {
1327                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1328                                                 return;
1329                                         }
1330                                 }
1331                         }
1332
1333                         // or not seen by random tracelines
1334                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1335                         {
1336                                 int samples =
1337                                         s->number <= svs.maxclients
1338                                                 ? sv_cullentities_trace_samples_players.integer
1339                                                 :
1340                                         s->specialvisibilityradius
1341                                                 ? sv_cullentities_trace_samples_extra.integer
1342                                                 : sv_cullentities_trace_samples.integer;
1343                                 float enlarge = sv_cullentities_trace_enlarge.value;
1344
1345                                 qboolean visible = TRUE;
1346
1347                                 if(samples > 0)
1348                                 {
1349                                         do
1350                                         {
1351                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1352                                                         break; // directly visible from the server's view
1353
1354                                                 if(sv_cullentities_trace_prediction.integer)
1355                                                 {
1356                                                         vec3_t predeye;
1357
1358                                                         // get player velocity
1359                                                         float predtime = bound(0, host_client->ping, 0.2); // / 2
1360                                                                 // sorry, no wallhacking by high ping please, and at 200ms
1361                                                                 // ping a FPS is annoying to play anyway and a player is
1362                                                                 // likely to have changed his direction
1363                                                         VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1364                                                         if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1365                                                         {
1366                                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1367                                                                         break; // directly visible from the predicted view
1368                                                         }
1369                                                         else
1370                                                         {
1371                                                                 //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1372                                                         }
1373                                                 }
1374
1375                                                 // when we get here, we can't see the entity
1376                                                 visible = false;
1377                                         }
1378                                         while(0);
1379
1380                                         if(visible)
1381                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1382                                                         realtime + (
1383                                                                 s->number <= svs.maxclients
1384                                                                         ? sv_cullentities_trace_delay_players.value
1385                                                                         : sv_cullentities_trace_delay.value
1386                                                         );
1387                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1388                                         {
1389                                                 sv.writeentitiestoclient_stats_culled_trace++;
1390                                                 return;
1391                                         }
1392                                 }
1393                         }
1394                 }
1395         }
1396
1397         // this just marks it for sending
1398         // FIXME: it would be more efficient to send here, but the entity
1399         // compressor isn't that flexible
1400         sv.writeentitiestoclient_stats_visibleentities++;
1401         sv.sententities[s->number] = sv.sententitiesmark;
1402 }
1403
1404 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1405 {
1406         qboolean need_empty = false;
1407         int i, numsendstates;
1408         entity_state_t *s;
1409         prvm_edict_t *camera;
1410
1411         // if there isn't enough space to accomplish anything, skip it
1412         if (msg->cursize + 25 > maxsize)
1413                 return;
1414
1415         sv.writeentitiestoclient_msg = msg;
1416         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1417
1418         sv.writeentitiestoclient_stats_culled_pvs = 0;
1419         sv.writeentitiestoclient_stats_culled_trace = 0;
1420         sv.writeentitiestoclient_stats_visibleentities = 0;
1421         sv.writeentitiestoclient_stats_totalentities = 0;
1422
1423 // find the client's PVS
1424         // the real place being tested from
1425         camera = PRVM_EDICT_NUM( client->clientcamera );
1426         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1427         sv.writeentitiestoclient_pvsbytes = 0;
1428         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1429                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
1430
1431         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1432
1433         sv.sententitiesmark++;
1434
1435         for (i = 0;i < sv.numsendentities;i++)
1436                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1437
1438         numsendstates = 0;
1439         for (i = 0;i < sv.numsendentities;i++)
1440         {
1441                 if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
1442                 {
1443                         s = &sv.writeentitiestoclient_sendstates[numsendstates++];
1444                         *s = sv.sendentities[i];
1445                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1446                                 s->flags |= RENDER_EXTERIORMODEL;
1447                 }
1448         }
1449
1450         if (sv_cullentities_stats.integer)
1451                 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);
1452
1453         if(client->entitydatabase5)
1454                 need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, client->entitydatabase5->latestframenum + 1);
1455         else
1456                 EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, 0);
1457
1458         if (client->entitydatabase5)
1459                 EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
1460         else if (client->entitydatabase4)
1461         {
1462                 EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1463                 Protocol_WriteStatsReliable();
1464         }
1465         else if (client->entitydatabase)
1466         {
1467                 EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1468                 Protocol_WriteStatsReliable();
1469         }
1470         else
1471         {
1472                 EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1473                 Protocol_WriteStatsReliable();
1474         }
1475 }
1476
1477 /*
1478 =============
1479 SV_CleanupEnts
1480
1481 =============
1482 */
1483 static void SV_CleanupEnts (void)
1484 {
1485         int             e;
1486         prvm_edict_t    *ent;
1487
1488         ent = PRVM_NEXT_EDICT(prog->edicts);
1489         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1490                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1491 }
1492
1493 /*
1494 ==================
1495 SV_WriteClientdataToMessage
1496
1497 ==================
1498 */
1499 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1500 {
1501         int             bits;
1502         int             i;
1503         prvm_edict_t    *other;
1504         int             items;
1505         prvm_eval_t     *val;
1506         vec3_t  punchvector;
1507         int             viewzoom;
1508         const char *s;
1509         float   *statsf = (float *)stats;
1510
1511 //
1512 // send a damage message
1513 //
1514         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1515         {
1516                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1517                 MSG_WriteByte (msg, svc_damage);
1518                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1519                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1520                 for (i=0 ; i<3 ; i++)
1521                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1522
1523                 ent->fields.server->dmg_take = 0;
1524                 ent->fields.server->dmg_save = 0;
1525         }
1526
1527 //
1528 // send the current viewpos offset from the view entity
1529 //
1530         SV_SetIdealPitch ();            // how much to look up / down ideally
1531
1532 // a fixangle might get lost in a dropped packet.  Oh well.
1533         if(ent->fields.server->fixangle)
1534         {
1535                 // angle fixing was requested by global thinking code...
1536                 // so store the current angles for later use
1537                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1538                 host_client->fixangle_angles_set = TRUE;
1539
1540                 // and clear fixangle for the next frame
1541                 ent->fields.server->fixangle = 0;
1542         }
1543
1544         if (host_client->fixangle_angles_set)
1545         {
1546                 MSG_WriteByte (msg, svc_setangle);
1547                 for (i=0 ; i < 3 ; i++)
1548                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1549                 host_client->fixangle_angles_set = FALSE;
1550         }
1551
1552         // stuff the sigil bits into the high bits of items for sbar, or else
1553         // mix in items2
1554         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1555         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1556                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1557         else
1558                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1559
1560         VectorClear(punchvector);
1561         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1562                 VectorCopy(val->vector, punchvector);
1563
1564         // cache weapon model name and index in client struct to save time
1565         // (this search can be almost 1% of cpu time!)
1566         s = PRVM_GetString(ent->fields.server->weaponmodel);
1567         if (strcmp(s, client->weaponmodel))
1568         {
1569                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1570                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1571         }
1572
1573         viewzoom = 255;
1574         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1575                 viewzoom = (int)(val->_float * 255.0f);
1576         if (viewzoom == 0)
1577                 viewzoom = 255;
1578
1579         bits = 0;
1580
1581         if ((int)ent->fields.server->flags & FL_ONGROUND)
1582                 bits |= SU_ONGROUND;
1583         if (ent->fields.server->waterlevel >= 2)
1584                 bits |= SU_INWATER;
1585         if (ent->fields.server->idealpitch)
1586                 bits |= SU_IDEALPITCH;
1587
1588         for (i=0 ; i<3 ; i++)
1589         {
1590                 if (ent->fields.server->punchangle[i])
1591                         bits |= (SU_PUNCH1<<i);
1592                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
1593                         if (punchvector[i])
1594                                 bits |= (SU_PUNCHVEC1<<i);
1595                 if (ent->fields.server->velocity[i])
1596                         bits |= (SU_VELOCITY1<<i);
1597         }
1598
1599         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1600         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1601         stats[STAT_ITEMS] = items;
1602         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1603         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1604         stats[STAT_WEAPON] = client->weaponmodelindex;
1605         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1606         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1607         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1608         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1609         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1610         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1611         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1612         stats[STAT_VIEWZOOM] = viewzoom;
1613         stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
1614         stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
1615         // the QC bumps these itself by sending svc_'s, so we have to keep them
1616         // zero or they'll be corrected by the engine
1617         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1618         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1619
1620         // movement settings for prediction
1621         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1622         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1623         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1624         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1625         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1626         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1627         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1628         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1629         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1630         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1631         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1632         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1633         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1634         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1635         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1636         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1637         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1638         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1639         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1640         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1641         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1642         statsf[STAT_TIMELIMIT] = timelimit.value;
1643
1644         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1645         {
1646                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1647                 bits |= SU_ITEMS;
1648                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1649                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1650                 bits |= SU_WEAPON;
1651                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1652                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1653                         if (viewzoom != 255)
1654                                 bits |= SU_VIEWZOOM;
1655         }
1656
1657         if (bits >= 65536)
1658                 bits |= SU_EXTEND1;
1659         if (bits >= 16777216)
1660                 bits |= SU_EXTEND2;
1661
1662         // send the data
1663         MSG_WriteByte (msg, svc_clientdata);
1664         MSG_WriteShort (msg, bits);
1665         if (bits & SU_EXTEND1)
1666                 MSG_WriteByte(msg, bits >> 16);
1667         if (bits & SU_EXTEND2)
1668                 MSG_WriteByte(msg, bits >> 24);
1669
1670         if (bits & SU_VIEWHEIGHT)
1671                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1672
1673         if (bits & SU_IDEALPITCH)
1674                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1675
1676         for (i=0 ; i<3 ; i++)
1677         {
1678                 if (bits & (SU_PUNCH1<<i))
1679                 {
1680                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1681                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1682                         else
1683                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1684                 }
1685                 if (bits & (SU_PUNCHVEC1<<i))
1686                 {
1687                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1688                                 MSG_WriteCoord16i(msg, punchvector[i]);
1689                         else
1690                                 MSG_WriteCoord32f(msg, punchvector[i]);
1691                 }
1692                 if (bits & (SU_VELOCITY1<<i))
1693                 {
1694                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1695                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1696                         else
1697                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1698                 }
1699         }
1700
1701         if (bits & SU_ITEMS)
1702                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1703
1704         if (sv.protocol == PROTOCOL_DARKPLACES5)
1705         {
1706                 if (bits & SU_WEAPONFRAME)
1707                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1708                 if (bits & SU_ARMOR)
1709                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1710                 if (bits & SU_WEAPON)
1711                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1712                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1713                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1714                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1715                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1716                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1717                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1718                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1719                 if (bits & SU_VIEWZOOM)
1720                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1721         }
1722         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1723         {
1724                 if (bits & SU_WEAPONFRAME)
1725                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1726                 if (bits & SU_ARMOR)
1727                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1728                 if (bits & SU_WEAPON)
1729                 {
1730                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1731                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
1732                         else
1733                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
1734                 }
1735                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1736                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1737                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1738                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1739                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1740                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1741                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1742                 {
1743                         for (i = 0;i < 32;i++)
1744                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1745                                         break;
1746                         MSG_WriteByte (msg, i);
1747                 }
1748                 else
1749                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1750                 if (bits & SU_VIEWZOOM)
1751                 {
1752                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1753                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1754                         else
1755                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1756                 }
1757         }
1758 }
1759
1760 void SV_FlushBroadcastMessages(void)
1761 {
1762         int i;
1763         client_t *client;
1764         if (sv.datagram.cursize <= 0)
1765                 return;
1766         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1767         {
1768                 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])))
1769                         continue;
1770                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1771                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1772         }
1773         SZ_Clear(&sv.datagram);
1774 }
1775
1776 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize)
1777 {
1778         // scan the splitpoints to find out how many we can fit in
1779         int numsegments, j, split;
1780         if (!client->unreliablemsg_splitpoints)
1781                 return;
1782         // always accept the first one if it's within 1024 bytes, this ensures
1783         // that very big datagrams which are over the rate limit still get
1784         // through, just to keep it working
1785         j = msg->cursize + client->unreliablemsg_splitpoint[0];
1786         if (maxsize < 1024 && j > maxsize && j <= 1024)
1787         {
1788                 numsegments = 1;
1789                 maxsize = 1024;
1790         }
1791         else
1792                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1793                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
1794                                 break;
1795         if (numsegments > 0)
1796         {
1797                 // some will fit, so add the ones that will fit
1798                 split = client->unreliablemsg_splitpoint[numsegments-1];
1799                 // note this discards ones that were accepted by the segments scan but
1800                 // can not fit, such as a really huge first one that will never ever
1801                 // fit in a packet...
1802                 if (msg->cursize + split <= maxsize)
1803                         SZ_Write(msg, client->unreliablemsg.data, split);
1804                 // remove the part we sent, keeping any remaining data
1805                 client->unreliablemsg.cursize -= split;
1806                 if (client->unreliablemsg.cursize > 0)
1807                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1808                 // adjust remaining splitpoints
1809                 client->unreliablemsg_splitpoints -= numsegments;
1810                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1811                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1812         }
1813 }
1814
1815 /*
1816 =======================
1817 SV_SendClientDatagram
1818 =======================
1819 */
1820 static void SV_SendClientDatagram (client_t *client)
1821 {
1822         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1823         sizebuf_t msg;
1824         int stats[MAX_CL_STATS];
1825         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1826
1827         // obey rate limit by limiting packet frequency if the packet size
1828         // limiting fails
1829         // (usually this is caused by reliable messages)
1830         if (!NetConn_CanSend(client->netconnection))
1831                 return;
1832
1833         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1834         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1835         if (sv_maxrate.integer != maxrate)
1836                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1837
1838         // clientrate determines the 'cleartime' of a packet
1839         // (how long to wait before sending another, based on this packet's size)
1840         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1841
1842         switch (sv.protocol)
1843         {
1844         case PROTOCOL_QUAKE:
1845         case PROTOCOL_QUAKEDP:
1846         case PROTOCOL_NEHAHRAMOVIE:
1847         case PROTOCOL_NEHAHRABJP:
1848         case PROTOCOL_NEHAHRABJP2:
1849         case PROTOCOL_NEHAHRABJP3:
1850         case PROTOCOL_QUAKEWORLD:
1851                 // no packet size limit support on Quake protocols because it just
1852                 // causes missing entities/effects
1853                 // packets are simply sent less often to obey the rate limit
1854                 maxsize = 1024;
1855                 maxsize2 = 1024;
1856                 break;
1857         case PROTOCOL_DARKPLACES1:
1858         case PROTOCOL_DARKPLACES2:
1859         case PROTOCOL_DARKPLACES3:
1860         case PROTOCOL_DARKPLACES4:
1861                 // no packet size limit support on DP1-4 protocols because they kick
1862                 // the client off if they overflow, and miss effects
1863                 // packets are simply sent less often to obey the rate limit
1864                 maxsize = sizeof(sv_sendclientdatagram_buf);
1865                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1866                 break;
1867         default:
1868                 // DP5 and later protocols support packet size limiting which is a
1869                 // better method than limiting packet frequency as QW does
1870                 //
1871                 // at very low rates (or very small sys_ticrate) the packet size is
1872                 // not reduced below 128, but packets may be sent less often
1873                 maxsize = (int)(clientrate * sys_ticrate.value);
1874                 maxsize = bound(128, maxsize, 1400);
1875                 maxsize2 = 1400;
1876                 // csqc entities can easily exceed 128 bytes, so disable throttling in
1877                 // mods that use csqc (they are likely to use less bandwidth anyway)
1878                 if (sv.csqc_progsize > 0)
1879                         maxsize = maxsize2;
1880                 break;
1881         }
1882
1883         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1884         {
1885                 // for good singleplayer, send huge packets
1886                 maxsize = sizeof(sv_sendclientdatagram_buf);
1887                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1888                 // never limit frequency in singleplayer
1889                 clientrate = 1000000000;
1890         }
1891
1892         // while downloading, limit entity updates to half the packet
1893         // (any leftover space will be used for downloading)
1894         if (host_client->download_file)
1895                 maxsize /= 2;
1896
1897         msg.data = sv_sendclientdatagram_buf;
1898         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1899         msg.cursize = 0;
1900         msg.allowoverflow = false;
1901
1902         if (host_client->spawned)
1903         {
1904                 // the player is in the game
1905                 MSG_WriteByte (&msg, svc_time);
1906                 MSG_WriteFloat (&msg, sv.time);
1907
1908                 // add the client specific data to the datagram
1909                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1910                 // now update the stats[] array using any registered custom fields
1911                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1912                 // set host_client->statsdeltabits
1913                 Protocol_UpdateClientStats (stats);
1914
1915                 // add as many queued unreliable messages (effects) as we can fit
1916                 // limit effects to half of the remaining space
1917                 if (client->unreliablemsg.cursize)
1918                         SV_WriteUnreliableMessages (client, &msg, (msg.cursize + maxsize) / 2);
1919
1920                 // now write as many entities as we can fit, and also sends stats
1921                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
1922         }
1923         else if (realtime > client->keepalivetime)
1924         {
1925                 // the player isn't totally in the game yet
1926                 // send small keepalive messages if too much time has passed
1927                 // (may also be sending downloads)
1928                 client->keepalivetime = realtime + 5;
1929                 MSG_WriteChar (&msg, svc_nop);
1930         }
1931
1932         // if a download is active, see if there is room to fit some download data
1933         // in this packet
1934         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
1935         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1936         {
1937                 fs_offset_t downloadstart;
1938                 unsigned char data[1400];
1939                 downloadstart = FS_Tell(host_client->download_file);
1940                 downloadsize = min(downloadsize, (int)sizeof(data));
1941                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1942                 // note this sends empty messages if at the end of the file, which is
1943                 // necessary to keep the packet loss logic working
1944                 // (the last blocks may be lost and need to be re-sent, and that will
1945                 //  only occur if the client acks the empty end messages, revealing
1946                 //  a gap in the download progress, causing the last blocks to be
1947                 //  sent again)
1948                 MSG_WriteChar (&msg, svc_downloaddata);
1949                 MSG_WriteLong (&msg, downloadstart);
1950                 MSG_WriteShort (&msg, downloadsize);
1951                 if (downloadsize > 0)
1952                         SZ_Write (&msg, data, downloadsize);
1953         }
1954
1955         // reliable only if none is in progress
1956         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
1957                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
1958         // unreliable
1959         SV_WriteDemoMessage(client, &msg, false);
1960
1961 // send the datagram
1962         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1963         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1964                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1965 }
1966
1967 /*
1968 =======================
1969 SV_UpdateToReliableMessages
1970 =======================
1971 */
1972 static void SV_UpdateToReliableMessages (void)
1973 {
1974         int i, j;
1975         client_t *client;
1976         prvm_eval_t *val;
1977         const char *name;
1978         const char *model;
1979         const char *skin;
1980
1981 // check for changes to be sent over the reliable streams
1982         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1983         {
1984                 // update the host_client fields we care about according to the entity fields
1985                 host_client->edict = PRVM_EDICT_NUM(i+1);
1986
1987                 // DP_SV_CLIENTNAME
1988                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1989                 if (name == NULL)
1990                         name = "";
1991                 // always point the string back at host_client->name to keep it safe
1992                 strlcpy (host_client->name, name, sizeof (host_client->name));
1993                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1994                 if (strcmp(host_client->old_name, host_client->name))
1995                 {
1996                         if (host_client->spawned)
1997                                 SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
1998                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
1999                         // send notification to all clients
2000                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
2001                         MSG_WriteByte (&sv.reliable_datagram, i);
2002                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
2003                         SV_WriteNetnameIntoDemo(host_client);
2004                 }
2005
2006                 // DP_SV_CLIENTCOLORS
2007                 // this is always found (since it's added by the progs loader)
2008                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2009                         host_client->colors = (int)val->_float;
2010                 if (host_client->old_colors != host_client->colors)
2011                 {
2012                         host_client->old_colors = host_client->colors;
2013                         // send notification to all clients
2014                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2015                         MSG_WriteByte (&sv.reliable_datagram, i);
2016                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2017                 }
2018
2019                 // NEXUIZ_PLAYERMODEL
2020                 if( prog->fieldoffsets.playermodel >= 0 ) {
2021                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2022                         if (model == NULL)
2023                                 model = "";
2024                         // always point the string back at host_client->name to keep it safe
2025                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2026                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2027                 }
2028
2029                 // NEXUIZ_PLAYERSKIN
2030                 if( prog->fieldoffsets.playerskin >= 0 ) {
2031                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2032                         if (skin == NULL)
2033                                 skin = "";
2034                         // always point the string back at host_client->name to keep it safe
2035                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2036                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2037                 }
2038
2039                 // TODO: add an extension name for this [1/17/2008 Black]
2040                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2041                         int oldclientcamera = host_client->clientcamera;
2042                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2043                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2044                         } else {
2045                                 host_client->clientcamera = val->edict;
2046                         }
2047
2048                         if( oldclientcamera != host_client->clientcamera ) {
2049                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
2050                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2051                         }
2052                 }
2053
2054                 // frags
2055                 host_client->frags = (int)host_client->edict->fields.server->frags;
2056                 if(gamemode == GAME_NEXUIZ)
2057                         if(!host_client->spawned && host_client->netconnection)
2058                                 host_client->frags = -666;
2059                 if (host_client->old_frags != host_client->frags)
2060                 {
2061                         host_client->old_frags = host_client->frags;
2062                         // send notification to all clients
2063                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2064                         MSG_WriteByte (&sv.reliable_datagram, i);
2065                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2066                 }
2067         }
2068
2069         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2070                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2071                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2072
2073         SZ_Clear (&sv.reliable_datagram);
2074 }
2075
2076
2077 /*
2078 =======================
2079 SV_SendClientMessages
2080 =======================
2081 */
2082 void SV_SendClientMessages (void)
2083 {
2084         int i, prepared = false;
2085
2086         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2087                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2088
2089         SV_FlushBroadcastMessages();
2090
2091 // update frags, names, etc
2092         SV_UpdateToReliableMessages();
2093
2094 // build individual updates
2095         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2096         {
2097                 if (!host_client->active)
2098                         continue;
2099                 if (!host_client->netconnection)
2100                         continue;
2101
2102                 if (host_client->netconnection->message.overflowed)
2103                 {
2104                         SV_DropClient (true);   // if the message couldn't send, kick off
2105                         continue;
2106                 }
2107
2108                 if (!prepared)
2109                 {
2110                         prepared = true;
2111                         // only prepare entities once per frame
2112                         SV_PrepareEntitiesForSending();
2113                 }
2114                 SV_SendClientDatagram (host_client);
2115         }
2116
2117 // clear muzzle flashes
2118         SV_CleanupEnts();
2119 }
2120
2121 static void SV_StartDownload_f(void)
2122 {
2123         if (host_client->download_file)
2124                 host_client->download_started = true;
2125 }
2126
2127 /*
2128  * Compression extension negotiation:
2129  *
2130  * Server to client:
2131  *   cl_serverextension_download 2
2132  *
2133  * Client to server:
2134  *   download <filename> <list of zero or more suppported compressions in order of preference>
2135  * e.g.
2136  *   download maps/map1.bsp lzo deflate huffman
2137  *
2138  * Server to client:
2139  *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
2140  * e.g.
2141  *   cl_downloadbegin 123456 maps/map1.bsp deflate
2142  *
2143  * The server may choose not to compress the file by sending no compression name, like:
2144  *   cl_downloadbegin 345678 maps/map1.bsp
2145  *
2146  * NOTE: the "download" command may only specify compression algorithms if
2147  *       cl_serverextension_download is 2!
2148  *       If cl_serverextension_download has a different value, the client must
2149  *       assume this extension is not supported!
2150  */
2151
2152 static void Download_CheckExtensions(void)
2153 {
2154         int i;
2155         int argc = Cmd_Argc();
2156
2157         // first reset them all
2158         host_client->download_deflate = false;
2159
2160         for(i = 2; i < argc; ++i)
2161         {
2162                 if(!strcmp(Cmd_Argv(i), "deflate"))
2163                 {
2164                         host_client->download_deflate = true;
2165                         break;
2166                 }
2167         }
2168 }
2169
2170 static void SV_Download_f(void)
2171 {
2172         const char *whichpack, *whichpack2, *extension;
2173         qboolean is_csqc; // so we need to check only once
2174
2175         if (Cmd_Argc() < 2)
2176         {
2177                 SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
2178                 SV_ClientPrintf("       supported extensions: deflate\n");
2179                 return;
2180         }
2181
2182         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2183         {
2184                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2185                 return;
2186         }
2187
2188         if (host_client->download_file)
2189         {
2190                 // at this point we'll assume the previous download should be aborted
2191                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2192                 Host_ClientCommands("\nstopdownload\n");
2193
2194                 // close the file and reset variables
2195                 FS_Close(host_client->download_file);
2196                 host_client->download_file = NULL;
2197                 host_client->download_name[0] = 0;
2198                 host_client->download_expectedposition = 0;
2199                 host_client->download_started = false;
2200         }
2201
2202         is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
2203
2204         if (!sv_allowdownloads.integer && !is_csqc)
2205         {
2206                 SV_ClientPrintf("Downloads are disabled on this server\n");
2207                 Host_ClientCommands("\nstopdownload\n");
2208                 return;
2209         }
2210
2211         Download_CheckExtensions();
2212
2213         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2214         extension = FS_FileExtension(host_client->download_name);
2215
2216         // host_client is asking to download a specified file
2217         if (developer.integer >= 100)
2218                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2219
2220         if(is_csqc)
2221         {
2222                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2223                 extensions[0] = '\0';
2224
2225                 if(host_client->download_deflate)
2226                         strlcat(extensions, " deflate", sizeof(extensions));
2227
2228                 Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2229
2230                 if(host_client->download_deflate)
2231                         host_client->download_file = FS_FileFromData(sv.csqc_progdata_deflated, sv.csqc_progsize_deflated, true);
2232                 else
2233                         host_client->download_file = FS_FileFromData(sv.csqc_progdata, sv.csqc_progsize, true);
2234
2235                 // no, no space is needed between %s and %s :P
2236                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2237
2238                 host_client->download_expectedposition = 0;
2239                 host_client->download_started = false;
2240                 host_client->sendsignon = true; // make sure this message is sent
2241                 return;
2242         }
2243
2244         if (!FS_FileExists(host_client->download_name))
2245         {
2246                 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);
2247                 Host_ClientCommands("\nstopdownload\n");
2248                 return;
2249         }
2250
2251         // check if the user is trying to download part of registered Quake(r)
2252         whichpack = FS_WhichPack(host_client->download_name);
2253         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2254         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2255         {
2256                 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);
2257                 Host_ClientCommands("\nstopdownload\n");
2258                 return;
2259         }
2260
2261         // check if the server has forbidden archive downloads entirely
2262         if (!sv_allowdownloads_inarchive.integer)
2263         {
2264                 whichpack = FS_WhichPack(host_client->download_name);
2265                 if (whichpack)
2266                 {
2267                         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);
2268                         Host_ClientCommands("\nstopdownload\n");
2269                         return;
2270                 }
2271         }
2272
2273         if (!sv_allowdownloads_config.integer)
2274         {
2275                 if (!strcasecmp(extension, "cfg"))
2276                 {
2277                         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);
2278                         Host_ClientCommands("\nstopdownload\n");
2279                         return;
2280                 }
2281         }
2282
2283         if (!sv_allowdownloads_dlcache.integer)
2284         {
2285                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2286                 {
2287                         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);
2288                         Host_ClientCommands("\nstopdownload\n");
2289                         return;
2290                 }
2291         }
2292
2293         if (!sv_allowdownloads_archive.integer)
2294         {
2295                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2296                 {
2297                         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);
2298                         Host_ClientCommands("\nstopdownload\n");
2299                         return;
2300                 }
2301         }
2302
2303         host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
2304         if (!host_client->download_file)
2305         {
2306                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2307                 Host_ClientCommands("\nstopdownload\n");
2308                 return;
2309         }
2310
2311         if (FS_FileSize(host_client->download_file) > 1<<30)
2312         {
2313                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2314                 Host_ClientCommands("\nstopdownload\n");
2315                 FS_Close(host_client->download_file);
2316                 host_client->download_file = NULL;
2317                 return;
2318         }
2319
2320         if (FS_FileSize(host_client->download_file) < 0)
2321         {
2322                 SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
2323                 Host_ClientCommands("\nstopdownload\n");
2324                 FS_Close(host_client->download_file);
2325                 host_client->download_file = NULL;
2326                 return;
2327         }
2328
2329         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2330
2331         /*
2332          * we can only do this if we would actually deflate on the fly
2333          * which we do not (yet)!
2334         {
2335                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2336                 extensions[0] = '\0';
2337
2338                 if(host_client->download_deflate)
2339                         strlcat(extensions, " deflate", sizeof(extensions));
2340
2341                 // no, no space is needed between %s and %s :P
2342                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2343         }
2344         */
2345         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2346
2347         host_client->download_expectedposition = 0;
2348         host_client->download_started = false;
2349         host_client->sendsignon = true; // make sure this message is sent
2350
2351         // the rest of the download process is handled in SV_SendClientDatagram
2352         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2353         //
2354         // no svc_downloaddata messages will be sent until sv_startdownload is
2355         // sent by the client
2356 }
2357
2358 /*
2359 ==============================================================================
2360
2361 SERVER SPAWNING
2362
2363 ==============================================================================
2364 */
2365
2366 /*
2367 ================
2368 SV_ModelIndex
2369
2370 ================
2371 */
2372 int SV_ModelIndex(const char *s, int precachemode)
2373 {
2374         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_MODELS);
2375         char filename[MAX_QPATH];
2376         if (!s || !*s)
2377                 return 0;
2378         // testing
2379         //if (precachemode == 2)
2380         //      return 0;
2381         strlcpy(filename, s, sizeof(filename));
2382         for (i = 2;i < limit;i++)
2383         {
2384                 if (!sv.model_precache[i][0])
2385                 {
2386                         if (precachemode)
2387                         {
2388                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2389                                 {
2390                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2391                                         return 0;
2392                                 }
2393                                 if (precachemode == 1)
2394                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2395                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2396                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2397                                 if (sv.state != ss_loading)
2398                                 {
2399                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2400                                         MSG_WriteShort(&sv.reliable_datagram, i);
2401                                         MSG_WriteString(&sv.reliable_datagram, filename);
2402                                 }
2403                                 return i;
2404                         }
2405                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2406                         return 0;
2407                 }
2408                 if (!strcmp(sv.model_precache[i], filename))
2409                         return i;
2410         }
2411         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2412         return 0;
2413 }
2414
2415 /*
2416 ================
2417 SV_SoundIndex
2418
2419 ================
2420 */
2421 int SV_SoundIndex(const char *s, int precachemode)
2422 {
2423         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_SOUNDS);
2424         char filename[MAX_QPATH];
2425         if (!s || !*s)
2426                 return 0;
2427         // testing
2428         //if (precachemode == 2)
2429         //      return 0;
2430         strlcpy(filename, s, sizeof(filename));
2431         for (i = 1;i < limit;i++)
2432         {
2433                 if (!sv.sound_precache[i][0])
2434                 {
2435                         if (precachemode)
2436                         {
2437                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2438                                 {
2439                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2440                                         return 0;
2441                                 }
2442                                 if (precachemode == 1)
2443                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2444                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2445                                 if (sv.state != ss_loading)
2446                                 {
2447                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2448                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2449                                         MSG_WriteString(&sv.reliable_datagram, filename);
2450                                 }
2451                                 return i;
2452                         }
2453                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2454                         return 0;
2455                 }
2456                 if (!strcmp(sv.sound_precache[i], filename))
2457                         return i;
2458         }
2459         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2460         return 0;
2461 }
2462
2463 /*
2464 ================
2465 SV_ParticleEffectIndex
2466
2467 ================
2468 */
2469 int SV_ParticleEffectIndex(const char *name)
2470 {
2471         int i, argc, linenumber, effectnameindex;
2472         fs_offset_t filesize;
2473         unsigned char *filedata;
2474         const char *text, *textstart, *textend;
2475         char argv[16][1024];
2476         if (!sv.particleeffectnamesloaded)
2477         {
2478                 sv.particleeffectnamesloaded = true;
2479                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2480                 for (i = 0;i < EFFECT_TOTAL;i++)
2481                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2482                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2483                 if (filedata)
2484                 {
2485                         textstart = (const char *)filedata;
2486                         textend = (const char *)filedata + filesize;
2487                         text = textstart;
2488                         for (linenumber = 1;;linenumber++)
2489                         {
2490                                 argc = 0;
2491                                 for (;;)
2492                                 {
2493                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2494                                                 break;
2495                                         if (argc < 16)
2496                                         {
2497                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2498                                                 argc++;
2499                                         }
2500                                 }
2501                                 if (com_token[0] == 0)
2502                                         break; // if the loop exited and it's not a \n, it's EOF
2503                                 if (argc < 1)
2504                                         continue;
2505                                 if (!strcmp(argv[0], "effect"))
2506                                 {
2507                                         if (argc == 2)
2508                                         {
2509                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2510                                                 {
2511                                                         if (sv.particleeffectname[effectnameindex][0])
2512                                                         {
2513                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2514                                                                         break;
2515                                                         }
2516                                                         else
2517                                                         {
2518                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2519                                                                 break;
2520                                                         }
2521                                                 }
2522                                                 // if we run out of names, abort
2523                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2524                                                 {
2525                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2526                                                         break;
2527                                                 }
2528                                         }
2529                                 }
2530                         }
2531                         Mem_Free(filedata);
2532                 }
2533         }
2534         // search for the name
2535         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2536                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2537                         return effectnameindex;
2538         // return 0 if we couldn't find it
2539         return 0;
2540 }
2541
2542 /*
2543 ================
2544 SV_CreateBaseline
2545
2546 ================
2547 */
2548 static void SV_CreateBaseline (void)
2549 {
2550         int i, entnum, large;
2551         prvm_edict_t *svent;
2552
2553         // LordHavoc: clear *all* states (note just active ones)
2554         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2555         {
2556                 // get the current server version
2557                 svent = PRVM_EDICT_NUM(entnum);
2558
2559                 // LordHavoc: always clear state values, whether the entity is in use or not
2560                 svent->priv.server->baseline = defaultstate;
2561
2562                 if (svent->priv.server->free)
2563                         continue;
2564                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2565                         continue;
2566
2567                 // create entity baseline
2568                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2569                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2570                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2571                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2572                 if (entnum > 0 && entnum <= svs.maxclients)
2573                 {
2574                         svent->priv.server->baseline.colormap = entnum;
2575                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2576                 }
2577                 else
2578                 {
2579                         svent->priv.server->baseline.colormap = 0;
2580                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2581                 }
2582
2583                 large = false;
2584                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2585                 {
2586                         large = true;
2587                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2588                                 large = false;
2589                 }
2590
2591                 // add to the message
2592                 if (large)
2593                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2594                 else
2595                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2596                 MSG_WriteShort (&sv.signon, entnum);
2597
2598                 if (large)
2599                 {
2600                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2601                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2602                 }
2603                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2604                 {
2605                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2606                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2607                 }
2608                 else
2609                 {
2610                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2611                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2612                 }
2613                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2614                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2615                 for (i=0 ; i<3 ; i++)
2616                 {
2617                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2618                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2619                 }
2620         }
2621 }
2622
2623 /*
2624 ================
2625 SV_Prepare_CSQC
2626
2627 Load csprogs.dat and comperss it so it doesn't need to be
2628 reloaded on request.
2629 ================
2630 */
2631 void SV_Prepare_CSQC(void)
2632 {
2633         fs_offset_t progsize;
2634
2635         if(sv.csqc_progdata)
2636         {
2637                 Con_DPrintf("Unloading old CSQC data.\n");
2638                 Mem_Free(sv.csqc_progdata);
2639                 if(sv.csqc_progdata_deflated)
2640                         Mem_Free(sv.csqc_progdata_deflated);
2641         }
2642
2643         sv.csqc_progdata = NULL;
2644         sv.csqc_progdata_deflated = NULL;
2645
2646         Con_Print("Loading csprogs.dat\n");
2647
2648         sv.csqc_progname[0] = 0;
2649         sv.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
2650
2651         if(progsize > 0)
2652         {
2653                 size_t deflated_size;
2654
2655                 sv.csqc_progsize = (int)progsize;
2656                 sv.csqc_progcrc = CRC_Block(sv.csqc_progdata, progsize);
2657                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2658                 Con_Printf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2659
2660                 Con_Print("Compressing csprogs.dat\n");
2661                 //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
2662                 sv.csqc_progdata_deflated = FS_Deflate(sv.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
2663                 sv.csqc_progsize_deflated = (int)deflated_size;
2664                 Con_Printf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
2665                 Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)sv.csqc_progsize_deflated);
2666         }
2667 }
2668
2669 /*
2670 ================
2671 SV_SaveSpawnparms
2672
2673 Grabs the current state of each client for saving across the
2674 transition to another level
2675 ================
2676 */
2677 void SV_SaveSpawnparms (void)
2678 {
2679         int             i, j;
2680
2681         svs.serverflags = (int)prog->globals.server->serverflags;
2682
2683         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2684         {
2685                 if (!host_client->active)
2686                         continue;
2687
2688         // call the progs to get default spawn parms for the new client
2689                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2690                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2691                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2692                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2693         }
2694 }
2695
2696 /*
2697 ================
2698 SV_SpawnServer
2699
2700 This is called at the start of each level
2701 ================
2702 */
2703
2704 void SV_SpawnServer (const char *server)
2705 {
2706         prvm_edict_t *ent;
2707         int i;
2708         char *entities;
2709         dp_model_t *worldmodel;
2710         char modelname[sizeof(sv.modelname)];
2711
2712         Con_DPrintf("SpawnServer: %s\n", server);
2713
2714         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2715
2716         if (!FS_FileExists(modelname))
2717         {
2718                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
2719                 return;
2720         }
2721
2722         if (cls.state != ca_dedicated)
2723         {
2724                 SCR_BeginLoadingPlaque();
2725                 S_StopAllSounds();
2726         }
2727
2728         if(sv.active)
2729         {
2730                 SV_VM_Begin();
2731                 if(prog->funcoffsets.SV_Shutdown)
2732                 {
2733                         func_t s = prog->funcoffsets.SV_Shutdown;
2734                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
2735                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
2736                 }
2737                 SV_VM_End();
2738         }
2739
2740         worldmodel = Mod_ForName(modelname, false, true, true);
2741         if (!worldmodel || !worldmodel->TraceBox)
2742         {
2743                 Con_Printf("Couldn't load map %s\n", modelname);
2744                 return;
2745         }
2746
2747         // let's not have any servers with no name
2748         if (hostname.string[0] == 0)
2749                 Cvar_Set ("hostname", "UNNAMED");
2750         scr_centertime_off = 0;
2751
2752         svs.changelevel_issued = false;         // now safe to issue another
2753
2754         // make the map a required file for clients
2755         Curl_ClearRequirements();
2756         Curl_RequireFile(modelname);
2757
2758 //
2759 // tell all connected clients that we are going to a new level
2760 //
2761         if (sv.active)
2762         {
2763                 client_t *client;
2764                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2765                 {
2766                         if (client->netconnection)
2767                         {
2768                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2769                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2770                         }
2771                 }
2772         }
2773         else
2774         {
2775                 // open server port
2776                 NetConn_OpenServerPorts(true);
2777         }
2778
2779 //
2780 // make cvars consistant
2781 //
2782         if (coop.integer)
2783                 Cvar_SetValue ("deathmatch", 0);
2784         // LordHavoc: it can be useful to have skills outside the range 0-3...
2785         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2786         //Cvar_SetValue ("skill", (float)current_skill);
2787         current_skill = (int)(skill.value + 0.5);
2788
2789 //
2790 // set up the new server
2791 //
2792         memset (&sv, 0, sizeof(sv));
2793         // if running a local client, make sure it doesn't try to access the last
2794         // level's data which is no longer valiud
2795         cls.signon = 0;
2796
2797         if(*sv_random_seed.string)
2798         {
2799                 srand(sv_random_seed.integer);
2800                 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);
2801         }
2802
2803         SV_VM_Setup();
2804
2805         sv.active = true;
2806
2807         strlcpy (sv.name, server, sizeof (sv.name));
2808
2809         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2810         if (sv.protocol == PROTOCOL_UNKNOWN)
2811         {
2812                 char buffer[1024];
2813                 Protocol_Names(buffer, sizeof(buffer));
2814                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2815                 sv.protocol = PROTOCOL_QUAKE;
2816         }
2817
2818         SV_VM_Begin();
2819
2820 // load progs to get entity field count
2821         //PR_LoadProgs ( sv_progs.string );
2822
2823         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2824         sv.datagram.cursize = 0;
2825         sv.datagram.data = sv.datagram_buf;
2826
2827         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2828         sv.reliable_datagram.cursize = 0;
2829         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2830
2831         sv.signon.maxsize = sizeof(sv.signon_buf);
2832         sv.signon.cursize = 0;
2833         sv.signon.data = sv.signon_buf;
2834
2835 // leave slots at start for clients only
2836         //prog->num_edicts = svs.maxclients+1;
2837
2838         sv.state = ss_loading;
2839         prog->allowworldwrites = true;
2840         sv.paused = false;
2841
2842         prog->globals.server->time = sv.time = 1.0;
2843
2844         Mod_ClearUsed();
2845         worldmodel->used = true;
2846
2847         strlcpy (sv.name, server, sizeof (sv.name));
2848         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2849         sv.worldmodel = worldmodel;
2850         sv.models[1] = sv.worldmodel;
2851
2852 //
2853 // clear world interaction links
2854 //
2855         World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
2856
2857         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2858
2859         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2860         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2861         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2862         {
2863                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2864                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2865         }
2866
2867 //
2868 // load the rest of the entities
2869 //
2870         // AK possible hack since num_edicts is still 0
2871         ent = PRVM_EDICT_NUM(0);
2872         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2873         ent->priv.server->free = false;
2874         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2875         ent->fields.server->modelindex = 1;             // world model
2876         ent->fields.server->solid = SOLID_BSP;
2877         ent->fields.server->movetype = MOVETYPE_PUSH;
2878         VectorCopy(sv.world.mins, ent->fields.server->mins);
2879         VectorCopy(sv.world.maxs, ent->fields.server->maxs);
2880         VectorCopy(sv.world.mins, ent->fields.server->absmin);
2881         VectorCopy(sv.world.maxs, ent->fields.server->absmax);
2882
2883         if (coop.value)
2884                 prog->globals.server->coop = coop.integer;
2885         else
2886                 prog->globals.server->deathmatch = deathmatch.integer;
2887
2888         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2889
2890 // serverflags are for cross level information (sigils)
2891         prog->globals.server->serverflags = svs.serverflags;
2892
2893         // we need to reset the spawned flag on all connected clients here so that
2894         // their thinks don't run during startup (before PutClientInServer)
2895         // we also need to set up the client entities now
2896         // and we need to set the ->edict pointers to point into the progs edicts
2897         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2898         {
2899                 host_client->spawned = false;
2900                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2901                 PRVM_ED_ClearEdict(host_client->edict);
2902         }
2903
2904         // load replacement entity file if found
2905         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2906         {
2907                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2908                 PRVM_ED_LoadFromFile (entities);
2909                 Mem_Free(entities);
2910         }
2911         else
2912                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2913
2914
2915         // LordHavoc: clear world angles (to fix e3m3.bsp)
2916         VectorClear(prog->edicts->fields.server->angles);
2917
2918 // all setup is completed, any further precache statements are errors
2919         sv.state = ss_active;
2920         prog->allowworldwrites = false;
2921
2922 // run two frames to allow everything to settle
2923         for (i = 0;i < 2;i++)
2924         {
2925                 sv.frametime = 0.1;
2926                 SV_Physics ();
2927         }
2928
2929         Mod_PurgeUnused();
2930
2931 // create a baseline for more efficient communications
2932         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2933                 SV_CreateBaseline ();
2934
2935 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2936         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2937         {
2938                 host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
2939                 if (!host_client->active)
2940                         continue;
2941                 if (host_client->netconnection)
2942                         SV_SendServerinfo(host_client);
2943                 else
2944                 {
2945                         int j;
2946                         // if client is a botclient coming from a level change, we need to
2947                         // set up client info that normally requires networking
2948
2949                         // copy spawn parms out of the client_t
2950                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2951                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2952
2953                         // call the spawn function
2954                         host_client->clientconnectcalled = true;
2955                         prog->globals.server->time = sv.time;
2956                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2957                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2958                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2959                         host_client->spawned = true;
2960                 }
2961         }
2962
2963         Con_DPrint("Server spawned.\n");
2964         NetConn_Heartbeat (2);
2965
2966         SV_VM_End();
2967 }
2968
2969 /////////////////////////////////////////////////////
2970 // SV VM stuff
2971
2972 static void SV_VM_CB_BeginIncreaseEdicts(void)
2973 {
2974         // links don't survive the transition, so unlink everything
2975         World_UnlinkAll(&sv.world);
2976 }
2977
2978 static void SV_VM_CB_EndIncreaseEdicts(void)
2979 {
2980         int i;
2981         prvm_edict_t *ent;
2982
2983         // link every entity except world
2984         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2985                 if (!ent->priv.server->free)
2986                         SV_LinkEdict(ent, false);
2987 }
2988
2989 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2990 {
2991         // LordHavoc: for consistency set these here
2992         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2993
2994         e->priv.server->move = false; // don't move on first frame
2995
2996         if (num >= 0 && num < svs.maxclients)
2997         {
2998                 prvm_eval_t *val;
2999                 // set colormap and team on newly created player entity
3000                 e->fields.server->colormap = num + 1;
3001                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
3002                 // set netname/clientcolors back to client values so that
3003                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
3004                 // reset them
3005                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
3006                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
3007                         val->_float = svs.clients[num].colors;
3008                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
3009                 if( prog->fieldoffsets.playermodel >= 0 )
3010                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
3011                 if( prog->fieldoffsets.playerskin >= 0 )
3012                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
3013                 // Assign netaddress (IP Address, etc)
3014                 if(prog->fieldoffsets.netaddress >= 0)
3015                 { // Valid Field; Process
3016                         if(svs.clients[num].netconnection != NULL)
3017                         {// Valid Address; Assign
3018                                 // Acquire Readable Address
3019                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
3020                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
3021                         }
3022                         else
3023                                 // Invalid / Bot
3024                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
3025                 }
3026         }
3027 }
3028
3029 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
3030 {
3031         int i;
3032         int e;
3033
3034         World_UnlinkEdict(ed);          // unlink from world bsp
3035
3036         ed->fields.server->model = 0;
3037         ed->fields.server->takedamage = 0;
3038         ed->fields.server->modelindex = 0;
3039         ed->fields.server->colormap = 0;
3040         ed->fields.server->skin = 0;
3041         ed->fields.server->frame = 0;
3042         VectorClear(ed->fields.server->origin);
3043         VectorClear(ed->fields.server->angles);
3044         ed->fields.server->nextthink = -1;
3045         ed->fields.server->solid = 0;
3046
3047         // make sure csqc networking is aware of the removed entity
3048         e = PRVM_NUM_FOR_EDICT(ed);
3049         sv.csqcentityversion[e] = 0;
3050         for (i = 0;i < svs.maxclients;i++)
3051         {
3052                 if (svs.clients[i].csqcentityscope[e])
3053                         svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
3054                 svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
3055         }
3056 }
3057
3058 static void SV_VM_CB_CountEdicts(void)
3059 {
3060         int             i;
3061         prvm_edict_t    *ent;
3062         int             active, models, solid, step;
3063
3064         active = models = solid = step = 0;
3065         for (i=0 ; i<prog->num_edicts ; i++)
3066         {
3067                 ent = PRVM_EDICT_NUM(i);
3068                 if (ent->priv.server->free)
3069                         continue;
3070                 active++;
3071                 if (ent->fields.server->solid)
3072                         solid++;
3073                 if (ent->fields.server->model)
3074                         models++;
3075                 if (ent->fields.server->movetype == MOVETYPE_STEP)
3076                         step++;
3077         }
3078
3079         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
3080         Con_Printf("active    :%3i\n", active);
3081         Con_Printf("view      :%3i\n", models);
3082         Con_Printf("touch     :%3i\n", solid);
3083         Con_Printf("step      :%3i\n", step);
3084 }
3085
3086 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
3087 {
3088         // remove things from different skill levels or deathmatch
3089         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
3090         {
3091                 if (deathmatch.integer)
3092                 {
3093                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
3094                         {
3095                                 return false;
3096                         }
3097                 }
3098                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
3099                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
3100                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
3101                 {
3102                         return false;
3103                 }
3104         }
3105         return true;
3106 }
3107
3108 static void SV_VM_Setup(void)
3109 {
3110         PRVM_Begin;
3111         PRVM_InitProg( PRVM_SERVERPROG );
3112
3113         // allocate the mempools
3114         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
3115         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
3116         prog->builtins = vm_sv_builtins;
3117         prog->numbuiltins = vm_sv_numbuiltins;
3118         prog->headercrc = PROGHEADER_CRC;
3119         prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
3120         prog->max_edicts = 512;
3121         if (sv.protocol == PROTOCOL_QUAKE)
3122                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
3123         else if (sv.protocol == PROTOCOL_QUAKEDP)
3124                 prog->limit_edicts = 2048; // guessing
3125         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
3126                 prog->limit_edicts = 2048; // guessing!
3127         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
3128                 prog->limit_edicts = 4096; // guessing!
3129         else
3130                 prog->limit_edicts = MAX_EDICTS;
3131         prog->reserved_edicts = svs.maxclients;
3132         prog->edictprivate_size = sizeof(edict_engineprivate_t);
3133         prog->name = "server";
3134         prog->extensionstring = vm_sv_extensions;
3135         prog->loadintoworld = true;
3136
3137         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
3138         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
3139         prog->init_edict = SV_VM_CB_InitEdict;
3140         prog->free_edict = SV_VM_CB_FreeEdict;
3141         prog->count_edicts = SV_VM_CB_CountEdicts;
3142         prog->load_edict = SV_VM_CB_LoadEdict;
3143         prog->init_cmd = VM_SV_Cmd_Init;
3144         prog->reset_cmd = VM_SV_Cmd_Reset;
3145         prog->error_cmd = Host_Error;
3146
3147         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
3148         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
3149
3150         // some mods compiled with scrambling compilers lack certain critical
3151         // global names and field names such as "self" and "time" and "nextthink"
3152         // so we have to set these offsets manually, matching the entvars_t
3153         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
3154         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
3155         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
3156         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
3157         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
3158         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
3159         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
3160         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
3161         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
3162         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
3163         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
3164         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
3165         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
3166         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
3167         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
3168         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
3169         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
3170         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
3171         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
3172         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
3173         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
3174         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
3175         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
3176         // OP_STATE is always supported on server (due to entvars_t)
3177         prog->flag |= PRVM_OP_STATE;
3178
3179         VM_CustomStats_Clear();//[515]: csqc
3180
3181         PRVM_End;
3182
3183         SV_Prepare_CSQC();
3184 }
3185
3186 void SV_VM_Begin(void)
3187 {
3188         PRVM_Begin;
3189         PRVM_SetProg( PRVM_SERVERPROG );
3190
3191         prog->globals.server->time = (float) sv.time;
3192 }
3193
3194 void SV_VM_End(void)
3195 {
3196         PRVM_End;
3197 }