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 extern cvar_t net_connecttimeout;
  32
  33 void VM_CustomStats_Clear (void);
  34 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
  35
  36 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
  37 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
  38 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
  39 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
  40 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
  41 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
  42 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
  43 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
  44 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
  45 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
  46 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
  47
  48 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
  49 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
  50 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
  51 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
  52 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
  53 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
  54 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
  55 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
  56 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
  57 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
  58 cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "64", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
  59 cvar_t sv_checkforpacketsduringsleep = {0, "sv_checkforpacketsduringsleep", "0", "uses select() function to wait between frames which can be interrupted by packets being received, instead of Sleep()/usleep()/SDL_Sleep() functions which do not check for packets"};
  60 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
  61 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
  62 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
  63 cvar_t sv_clmovement_inputtimeout = {0, "sv_clmovement_inputtimeout", "0.2", "when a client does not send input for this many seconds, force them to move anyway (unlike QuakeWorld)"};
  64 cvar_t sv_cullentities_nevercullbmodels = {0, "sv_cullentities_nevercullbmodels", "0", "if enabled the clients are always notified of moving doors and lifts and other submodels of world (warning: eats a lot of network bandwidth on some levels!)"};
  65 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
  66 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
  67 cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "0", "somewhat slow but very tight culling of hidden entities, minimizes network traffic and makes wallhack cheats useless"};
  68 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  69 cvar_t sv_cullentities_trace_delay_players = {0, "sv_cullentities_trace_delay_players", "0.2", "number of seconds until the entity gets actually culled if it is a player entity"};
  70 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  71 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
  72 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
  73 cvar_t sv_cullentities_trace_samples_extra = {0, "sv_cullentities_trace_samples_extra", "2", "number of samples to test for entity culling when the entity affects its surroundings by e.g. dlight"};
  74 cvar_t sv_cullentities_trace_samples_players = {0, "sv_cullentities_trace_samples_players", "8", "number of samples to test for entity culling when the entity is a player entity"};
  75 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
  76 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
  77 cvar_t sv_edgefriction = {0, "edgefriction", "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)"};
  78 cvar_t sv_entpatch = {0, "sv_entpatch", "1", "enables loading of .ent files to override entities in the bsp (for example Threewave CTF server pack contains .ent patch files enabling play of CTF on id1 maps)"};
  79 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "1", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
  80 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
  81 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
  82 cvar_t sv_gameplayfix_blowupfallenzombies = {0, "sv_gameplayfix_blowupfallenzombies", "1", "causes findradius to detect SOLID_NOT entities such as zombies and corpses on the floor, allowing splash damage to apply to them"};
  83 cvar_t sv_gameplayfix_delayprojectiles = {0, "sv_gameplayfix_delayprojectiles", "1", "causes entities to not move on the same frame they are spawned, meaning that projectiles wait until the next frame to perform their first move, giving proper interpolation and rocket trails, but making weapons harder to use at low framerates"};
  84 cvar_t sv_gameplayfix_droptofloorstartsolid = {0, "sv_gameplayfix_droptofloorstartsolid", "1", "prevents items and monsters that start in a solid area from falling out of the level (makes droptofloor treat trace_startsolid as an acceptable outcome)"};
  85 cvar_t sv_gameplayfix_droptofloorstartsolid_nudgetocorrect = {0, "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect", "1", "tries to nudge stuck items and monsters out of walls before droptofloor is performed"};
  86 cvar_t sv_gameplayfix_easierwaterjump = {0, "sv_gameplayfix_easierwaterjump", "1", "changes water jumping to make it easier to get out of water (exactly like in QuakeWorld)"};
  87 cvar_t sv_gameplayfix_findradiusdistancetobox = {0, "sv_gameplayfix_findradiusdistancetobox", "1", "causes findradius to check the distance to the corner of a box rather than the center of the box, makes findradius detect bmodels such as very large doors that would otherwise be unaffected by splash damage"};
  88 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
  89 cvar_t sv_gameplayfix_multiplethinksperframe = {0, "sv_gameplayfix_multiplethinksperframe", "1", "allows entities to think more often than the server framerate, primarily useful for very high fire rate weapons"};
  90 cvar_t sv_gameplayfix_slidemoveprojectiles = {0, "sv_gameplayfix_slidemoveprojectiles", "1", "allows MOVETYPE_FLY/FLYMISSILE/TOSS/BOUNCE/BOUNCEMISSILE entities to finish their move in a frame even if they hit something, fixes 'gravity accumulation' bug for grenades on steep slopes"};
  91 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"};
  92 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"};
  93 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)"};
  94 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)"};
  95 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"};
  96 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"};
  97 cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
  98 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
  99 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
 100 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
 101 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
 102 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)"};
 103 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
 104 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
 105 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
 106 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
 107 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
 108 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
 109 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
 110 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
 111 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"};
 112 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)"};
 113 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)"};
 114 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)"};
 115 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
 116 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
 117 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
 118 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"};
 119 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"};
 120 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"};
 121 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"};
 122 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
 123
 124 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 125 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 126 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 127 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 128 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 129 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
 130 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
 131 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
 132 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
 133 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)"};
 134
 135 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
 136 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
 137 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
 138 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
 139 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
 140 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
 141 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
 142 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
 143 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
 144 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
 145 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
 146 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
 147 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
 148 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
 149 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
 150 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
 151 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
 152 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
 153 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
 154 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
 155 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 156
 157 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)"};
 158 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 (the date is encoded using strftime escapes)" };
 159
 160
 161 server_t sv;
 162 server_static_t svs;
 163
 164 mempool_t *sv_mempool = NULL;
 165
 166 extern cvar_t slowmo;
 167 extern float            scr_centertime_off;
 168
 169 // MUST match effectnameindex_t in client.h
 170 static const char *standardeffectnames[EFFECT_TOTAL] =
 171 {
 172         "",
 173         "TE_GUNSHOT",
 174         "TE_GUNSHOTQUAD",
 175         "TE_SPIKE",
 176         "TE_SPIKEQUAD",
 177         "TE_SUPERSPIKE",
 178         "TE_SUPERSPIKEQUAD",
 179         "TE_WIZSPIKE",
 180         "TE_KNIGHTSPIKE",
 181         "TE_EXPLOSION",
 182         "TE_EXPLOSIONQUAD",
 183         "TE_TAREXPLOSION",
 184         "TE_TELEPORT",
 185         "TE_LAVASPLASH",
 186         "TE_SMALLFLASH",
 187         "TE_FLAMEJET",
 188         "EF_FLAME",
 189         "TE_BLOOD",
 190         "TE_SPARK",
 191         "TE_PLASMABURN",
 192         "TE_TEI_G3",
 193         "TE_TEI_SMOKE",
 194         "TE_TEI_BIGEXPLOSION",
 195         "TE_TEI_PLASMAHIT",
 196         "EF_STARDUST",
 197         "TR_ROCKET",
 198         "TR_GRENADE",
 199         "TR_BLOOD",
 200         "TR_WIZSPIKE",
 201         "TR_SLIGHTBLOOD",
 202         "TR_KNIGHTSPIKE",
 203         "TR_VORESPIKE",
 204         "TR_NEHAHRASMOKE",
 205         "TR_NEXUIZPLASMA",
 206         "TR_GLOWTRAIL",
 207         "SVC_PARTICLE"
 208 };
 209
 210 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
 211
 212 prvm_required_field_t reqfields[] =
 213 {
 214         {ev_entity, "cursor_trace_ent"},
 215         {ev_entity, "drawonlytoclient"},
 216         {ev_entity, "exteriormodeltoclient"},
 217         {ev_entity, "nodrawtoclient"},
 218         {ev_entity, "tag_entity"},
 219         {ev_entity, "viewmodelforclient"},
 220         {ev_float, "SendFlags"},
 221         {ev_float, "Version"},
 222         {ev_float, "alpha"},
 223         {ev_float, "ammo_cells1"},
 224         {ev_float, "ammo_lava_nails"},
 225         {ev_float, "ammo_multi_rockets"},
 226         {ev_float, "ammo_nails1"},
 227         {ev_float, "ammo_plasma"},
 228         {ev_float, "ammo_rockets1"},
 229         {ev_float, "ammo_shells1"},
 230         {ev_float, "button3"},
 231         {ev_float, "button4"},
 232         {ev_float, "button5"},
 233         {ev_float, "button6"},
 234         {ev_float, "button7"},
 235         {ev_float, "button8"},
 236         {ev_float, "button9"},
 237         {ev_float, "button10"},
 238         {ev_float, "button11"},
 239         {ev_float, "button12"},
 240         {ev_float, "button13"},
 241         {ev_float, "button14"},
 242         {ev_float, "button15"},
 243         {ev_float, "button16"},
 244         {ev_float, "buttonchat"},
 245         {ev_float, "buttonuse"},
 246         {ev_float, "clientcolors"},
 247         {ev_float, "cursor_active"},
 248         {ev_float, "disableclientprediction"},
 249         {ev_float, "fullbright"},
 250         {ev_float, "glow_color"},
 251         {ev_float, "glow_size"},
 252         {ev_float, "glow_trail"},
 253         {ev_float, "gravity"},
 254         {ev_float, "idealpitch"},
 255         {ev_float, "items2"},
 256         {ev_float, "light_lev"},
 257         {ev_float, "modelflags"},
 258         {ev_float, "pflags"},
 259         {ev_float, "ping"},
 260         {ev_float, "pitch_speed"},
 261         {ev_float, "pmodel"},
 262         {ev_float, "renderamt"}, // HalfLife support
 263         {ev_float, "rendermode"}, // HalfLife support
 264         {ev_float, "scale"},
 265         {ev_float, "style"},
 266         {ev_float, "tag_index"},
 267         {ev_float, "viewzoom"},
 268         {ev_function, "SendEntity"},
 269         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
 270         {ev_function, "customizeentityforclient"},
 271         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
 272         {ev_string, "netaddress"},
 273         {ev_string, "playermodel"},
 274         {ev_string, "playerskin"},
 275         {ev_vector, "color"},
 276         {ev_vector, "colormod"},
 277         {ev_vector, "cursor_screen"},
 278         {ev_vector, "cursor_trace_endpos"},
 279         {ev_vector, "cursor_trace_start"},
 280         {ev_vector, "movement"},
 281         {ev_vector, "punchvector"},
 282 };
 283
 284
 285
 286 //============================================================================
 287
 288 void SV_AreaStats_f(void)
 289 {
 290         World_PrintAreaStats(&sv.world, "server");
 291 }
 292
 293 /*
 294 ===============
 295 SV_Init
 296 ===============
 297 */
 298 void SV_Init (void)
 299 {
 300         // init the csqc progs cvars, since they are updated/used by the server code
 301         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
 302         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
 303         extern cvar_t csqc_progcrc;
 304         extern cvar_t csqc_progsize;
 305         Cvar_RegisterVariable (&csqc_progname);
 306         Cvar_RegisterVariable (&csqc_progcrc);
 307         Cvar_RegisterVariable (&csqc_progsize);
 308
 309         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
 310         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
 311         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
 312         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
 313
 314         Cvar_RegisterVariable (&coop);
 315         Cvar_RegisterVariable (&deathmatch);
 316         Cvar_RegisterVariable (&fraglimit);
 317         Cvar_RegisterVariable (&gamecfg);
 318         Cvar_RegisterVariable (&noexit);
 319         Cvar_RegisterVariable (&nomonsters);
 320         Cvar_RegisterVariable (&pausable);
 321         Cvar_RegisterVariable (&pr_checkextension);
 322         Cvar_RegisterVariable (&samelevel);
 323         Cvar_RegisterVariable (&skill);
 324         Cvar_RegisterVariable (&slowmo);
 325         Cvar_RegisterVariable (&sv_accelerate);
 326         Cvar_RegisterVariable (&sv_aim);
 327         Cvar_RegisterVariable (&sv_airaccel_qw);
 328         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
 329         Cvar_RegisterVariable (&sv_airaccelerate);
 330         Cvar_RegisterVariable (&sv_allowdownloads);
 331         Cvar_RegisterVariable (&sv_allowdownloads_archive);
 332         Cvar_RegisterVariable (&sv_allowdownloads_config);
 333         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
 334         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
 335         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
 336         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
 337         Cvar_RegisterVariable (&sv_clmovement_enable);
 338         Cvar_RegisterVariable (&sv_clmovement_minping);
 339         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
 340         Cvar_RegisterVariable (&sv_clmovement_inputtimeout);
 341         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
 342         Cvar_RegisterVariable (&sv_cullentities_pvs);
 343         Cvar_RegisterVariable (&sv_cullentities_stats);
 344         Cvar_RegisterVariable (&sv_cullentities_trace);
 345         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
 346         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
 347         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
 348         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
 349         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
 350         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
 351         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
 352         Cvar_RegisterVariable (&sv_debugmove);
 353         Cvar_RegisterVariable (&sv_echobprint);
 354         Cvar_RegisterVariable (&sv_edgefriction);
 355         Cvar_RegisterVariable (&sv_entpatch);
 356         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
 357         Cvar_RegisterVariable (&sv_freezenonclients);
 358         Cvar_RegisterVariable (&sv_friction);
 359         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
 360         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
 361         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
 362         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
 363         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
 364         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
 365         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
 366         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
 367         Cvar_RegisterVariable (&sv_gameplayfix_slidemoveprojectiles);
 368         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
 369         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
 370         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
 371         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
 372         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
 373         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
 374         Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
 375         Cvar_RegisterVariable (&sv_gravity);
 376         Cvar_RegisterVariable (&sv_idealpitchscale);
 377         Cvar_RegisterVariable (&sv_jumpstep);
 378         Cvar_RegisterVariable (&sv_jumpvelocity);
 379         Cvar_RegisterVariable (&sv_maxairspeed);
 380         Cvar_RegisterVariable (&sv_maxrate);
 381         Cvar_RegisterVariable (&sv_maxspeed);
 382         Cvar_RegisterVariable (&sv_maxvelocity);
 383         Cvar_RegisterVariable (&sv_newflymove);
 384         Cvar_RegisterVariable (&sv_nostep);
 385         Cvar_RegisterVariable (&sv_playerphysicsqc);
 386         Cvar_RegisterVariable (&sv_progs);
 387         Cvar_RegisterVariable (&sv_protocolname);
 388         Cvar_RegisterVariable (&sv_random_seed);
 389         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
 390         Cvar_RegisterVariable (&sv_sound_land);
 391         Cvar_RegisterVariable (&sv_sound_watersplash);
 392         Cvar_RegisterVariable (&sv_stepheight);
 393         Cvar_RegisterVariable (&sv_stopspeed);
 394         Cvar_RegisterVariable (&sv_wallfriction);
 395         Cvar_RegisterVariable (&sv_wateraccelerate);
 396         Cvar_RegisterVariable (&sv_waterfriction);
 397         Cvar_RegisterVariable (&sys_ticrate);
 398         Cvar_RegisterVariable (&teamplay);
 399         Cvar_RegisterVariable (&timelimit);
 400
 401         Cvar_RegisterVariable (&saved1);
 402         Cvar_RegisterVariable (&saved2);
 403         Cvar_RegisterVariable (&saved3);
 404         Cvar_RegisterVariable (&saved4);
 405         Cvar_RegisterVariable (&savedgamecfg);
 406         Cvar_RegisterVariable (&scratch1);
 407         Cvar_RegisterVariable (&scratch2);
 408         Cvar_RegisterVariable (&scratch3);
 409         Cvar_RegisterVariable (&scratch4);
 410         Cvar_RegisterVariable (&temp1);
 411
 412         // LordHavoc: Nehahra uses these to pass data around cutscene demos
 413         if (gamemode == GAME_NEHAHRA)
 414         {
 415                 Cvar_RegisterVariable (&nehx00);
 416                 Cvar_RegisterVariable (&nehx01);
 417                 Cvar_RegisterVariable (&nehx02);
 418                 Cvar_RegisterVariable (&nehx03);
 419                 Cvar_RegisterVariable (&nehx04);
 420                 Cvar_RegisterVariable (&nehx05);
 421                 Cvar_RegisterVariable (&nehx06);
 422                 Cvar_RegisterVariable (&nehx07);
 423                 Cvar_RegisterVariable (&nehx08);
 424                 Cvar_RegisterVariable (&nehx09);
 425                 Cvar_RegisterVariable (&nehx10);
 426                 Cvar_RegisterVariable (&nehx11);
 427                 Cvar_RegisterVariable (&nehx12);
 428                 Cvar_RegisterVariable (&nehx13);
 429                 Cvar_RegisterVariable (&nehx14);
 430                 Cvar_RegisterVariable (&nehx15);
 431                 Cvar_RegisterVariable (&nehx16);
 432                 Cvar_RegisterVariable (&nehx17);
 433                 Cvar_RegisterVariable (&nehx18);
 434                 Cvar_RegisterVariable (&nehx19);
 435         }
 436         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
 437
 438         Cvar_RegisterVariable (&sv_autodemo_perclient);
 439         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
 440
 441         // any special defaults for gamemodes go here
 442         if (gamemode == GAME_HIPNOTIC)
 443         {
 444                 // 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.
 445                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
 446                 // 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
 447                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
 448         }
 449         if (gamemode == GAME_ROGUE)
 450         {
 451                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 452                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
 453         }
 454
 455         sv_mempool = Mem_AllocPool("server", 0, NULL);
 456 }
 457
 458 static void SV_SaveEntFile_f(void)
 459 {
 460         char basename[MAX_QPATH];
 461         if (!sv.active || !sv.worldmodel)
 462         {
 463                 Con_Print("Not running a server\n");
 464                 return;
 465         }
 466         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
 467         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
 468 }
 469
 470
 471 /*
 472 =============================================================================
 473
 474 EVENT MESSAGES
 475
 476 =============================================================================
 477 */
 478
 479 /*
 480 ==================
 481 SV_StartParticle
 482
 483 Make sure the event gets sent to all clients
 484 ==================
 485 */
 486 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
 487 {
 488         int i;
 489
 490         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
 491                 return;
 492         MSG_WriteByte (&sv.datagram, svc_particle);
 493         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 494         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 495         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 496         for (i=0 ; i<3 ; i++)
 497                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
 498         MSG_WriteByte (&sv.datagram, count);
 499         MSG_WriteByte (&sv.datagram, color);
 500         SV_FlushBroadcastMessages();
 501 }
 502
 503 /*
 504 ==================
 505 SV_StartEffect
 506
 507 Make sure the event gets sent to all clients
 508 ==================
 509 */
 510 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 511 {
 512         if (modelindex >= 256 || startframe >= 256)
 513         {
 514                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 515                         return;
 516                 MSG_WriteByte (&sv.datagram, svc_effect2);
 517                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 518                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 519                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 520                 MSG_WriteShort (&sv.datagram, modelindex);
 521                 MSG_WriteShort (&sv.datagram, startframe);
 522                 MSG_WriteByte (&sv.datagram, framecount);
 523                 MSG_WriteByte (&sv.datagram, framerate);
 524         }
 525         else
 526         {
 527                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 528                         return;
 529                 MSG_WriteByte (&sv.datagram, svc_effect);
 530                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 531                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 532                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 533                 MSG_WriteByte (&sv.datagram, modelindex);
 534                 MSG_WriteByte (&sv.datagram, startframe);
 535                 MSG_WriteByte (&sv.datagram, framecount);
 536                 MSG_WriteByte (&sv.datagram, framerate);
 537         }
 538         SV_FlushBroadcastMessages();
 539 }
 540
 541 /*
 542 ==================
 543 SV_StartSound
 544
 545 Each entity can have eight independant sound sources, like voice,
 546 weapon, feet, etc.
 547
 548 Channel 0 is an auto-allocate channel, the others override anything
 549 already running on that entity/channel pair.
 550
 551 An attenuation of 0 will play full volume everywhere in the level.
 552 Larger attenuations will drop off.  (max 4 attenuation)
 553
 554 ==================
 555 */
 556 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
 557 {
 558         int sound_num, field_mask, i, ent;
 559
 560         if (volume < 0 || volume > 255)
 561         {
 562                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
 563                 return;
 564         }
 565
 566         if (attenuation < 0 || attenuation > 4)
 567         {
 568                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
 569                 return;
 570         }
 571
 572         if (channel < 0 || channel > 7)
 573         {
 574                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
 575                 return;
 576         }
 577
 578         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 579                 return;
 580
 581 // find precache number for sound
 582         sound_num = SV_SoundIndex(sample, 1);
 583         if (!sound_num)
 584                 return;
 585
 586         ent = PRVM_NUM_FOR_EDICT(entity);
 587
 588         field_mask = 0;
 589         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 590                 field_mask |= SND_VOLUME;
 591         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 592                 field_mask |= SND_ATTENUATION;
 593         if (ent >= 8192)
 594                 field_mask |= SND_LARGEENTITY;
 595         if (sound_num >= 256 || channel >= 8)
 596                 field_mask |= SND_LARGESOUND;
 597
 598 // directed messages go only to the entity they are targeted on
 599         MSG_WriteByte (&sv.datagram, svc_sound);
 600         MSG_WriteByte (&sv.datagram, field_mask);
 601         if (field_mask & SND_VOLUME)
 602                 MSG_WriteByte (&sv.datagram, volume);
 603         if (field_mask & SND_ATTENUATION)
 604                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 605         if (field_mask & SND_LARGEENTITY)
 606         {
 607                 MSG_WriteShort (&sv.datagram, ent);
 608                 MSG_WriteByte (&sv.datagram, channel);
 609         }
 610         else
 611                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 612         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
 613                 MSG_WriteShort (&sv.datagram, sound_num);
 614         else
 615                 MSG_WriteByte (&sv.datagram, sound_num);
 616         for (i = 0;i < 3;i++)
 617                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
 618         SV_FlushBroadcastMessages();
 619 }
 620
 621 /*
 622 ==================
 623 SV_StartPointSound
 624
 625 Nearly the same logic as SV_StartSound, except an origin
 626 instead of an entity is provided and channel is omitted.
 627
 628 The entity sent to the client is 0 (world) and the channel
 629 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
 630 function, therefore the check for it is omitted.
 631
 632 ==================
 633 */
 634 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
 635 {
 636         int sound_num, field_mask, i;
 637
 638         if (volume < 0 || volume > 255)
 639         {
 640                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
 641                 return;
 642         }
 643
 644         if (attenuation < 0 || attenuation > 4)
 645         {
 646                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
 647                 return;
 648         }
 649
 650         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 651                 return;
 652
 653         // find precache number for sound
 654         sound_num = SV_SoundIndex(sample, 1);
 655         if (!sound_num)
 656                 return;
 657
 658         field_mask = 0;
 659         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 660                 field_mask |= SND_VOLUME;
 661         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 662                 field_mask |= SND_ATTENUATION;
 663         if (sound_num >= 256)
 664                 field_mask |= SND_LARGESOUND;
 665
 666 // directed messages go only to the entity they are targeted on
 667         MSG_WriteByte (&sv.datagram, svc_sound);
 668         MSG_WriteByte (&sv.datagram, field_mask);
 669         if (field_mask & SND_VOLUME)
 670                 MSG_WriteByte (&sv.datagram, volume);
 671         if (field_mask & SND_ATTENUATION)
 672                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 673         // Always write entnum 0 for the world entity
 674         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
 675         if (field_mask & SND_LARGESOUND)
 676                 MSG_WriteShort (&sv.datagram, sound_num);
 677         else
 678                 MSG_WriteByte (&sv.datagram, sound_num);
 679         for (i = 0;i < 3;i++)
 680                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
 681         SV_FlushBroadcastMessages();
 682 }
 683
 684 /*
 685 ==============================================================================
 686
 687 CLIENT SPAWNING
 688
 689 ==============================================================================
 690 */
 691
 692 /*
 693 ================
 694 SV_SendServerinfo
 695
 696 Sends the first message from the server to a connected client.
 697 This will be sent on the initial connection and upon each server load.
 698 ================
 699 */
 700 void SV_SendServerinfo (client_t *client)
 701 {
 702         int i;
 703         char message[128];
 704
 705         // we know that this client has a netconnection and thus is not a bot
 706
 707         // edicts get reallocated on level changes, so we need to update it here
 708         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
 709
 710         // clear cached stuff that depends on the level
 711         client->weaponmodel[0] = 0;
 712         client->weaponmodelindex = 0;
 713
 714         // LordHavoc: clear entityframe tracking
 715         client->latestframenum = 0;
 716
 717         // initialize the movetime, so a speedhack can't make use of the time before this client joined
 718         client->cmd.time = sv.time;
 719
 720         if (client->entitydatabase)
 721                 EntityFrame_FreeDatabase(client->entitydatabase);
 722         if (client->entitydatabase4)
 723                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 724         if (client->entitydatabase5)
 725                 EntityFrame5_FreeDatabase(client->entitydatabase5);
 726
 727         memset(client->stats, 0, sizeof(client->stats));
 728         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
 729
 730         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)
 731         {
 732                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
 733                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
 734                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
 735                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
 736                 else
 737                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
 738         }
 739
 740         // reset csqc entity versions
 741         for (i = 0;i < prog->max_edicts;i++)
 742         {
 743                 client->csqcentityscope[i] = 0;
 744                 client->csqcentitysendflags[i] = 0xFFFFFF;
 745                 client->csqcentityglobalhistory[i] = 0;
 746         }
 747         for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
 748         {
 749                 client->csqcentityframehistory[i].num = 0;
 750                 client->csqcentityframehistory[i].framenum = -1;
 751         }
 752         client->csqcnumedicts = 0;
 753         client->csqcentityframehistory_next = 0;
 754
 755         SZ_Clear (&client->netconnection->message);
 756         MSG_WriteByte (&client->netconnection->message, svc_print);
 757         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
 758         MSG_WriteString (&client->netconnection->message,message);
 759
 760         SV_StopDemoRecording(client); // to split up demos into different files
 761         if(sv_autodemo_perclient.integer && client->netconnection)
 762         {
 763                 char demofile[MAX_OSPATH];
 764                 char levelname[MAX_QPATH];
 765                 char ipaddress[MAX_QPATH];
 766                 size_t i;
 767
 768                 // start a new demo file
 769                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
 770                 if (strrchr(levelname, '.'))
 771                         *(strrchr(levelname, '.')) = 0;
 772
 773                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
 774                 for(i = 0; ipaddress[i]; ++i)
 775                         if(!isalnum(ipaddress[i]))
 776                                 ipaddress[i] = '-';
 777                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
 778
 779                 SV_StartDemoRecording(client, demofile, -1);
 780         }
 781
 782         //[515]: init csprogs according to version of svprogs, check the crc, etc.
 783         if (sv.csqc_progname[0])
 784         {
 785                 prvm_eval_t *val;
 786                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
 787                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 788                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
 789                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 790                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
 791                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 792                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
 793
 794                 if(client->sv_demo_file != NULL)
 795                 {
 796                         int i;
 797                         char buf[NET_MAXMESSAGE];
 798                         sizebuf_t sb;
 799
 800                         sb.data = (unsigned char *) buf;
 801                         sb.maxsize = sizeof(buf);
 802                         i = 0;
 803                         while(MakeDownloadPacket(sv.csqc_progname, svs.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
 804                                 SV_WriteDemoMessage(client, &sb, false);
 805                 }
 806
 807                 //[515]: init stufftext string (it is sent before svc_serverinfo)
 808                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
 809                 if (val)
 810                 {
 811                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 812                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
 813                 }
 814         }
 815
 816         //if (sv_allowdownloads.integer)
 817         // always send the info that the server supports the protocol, even if downloads are forbidden
 818         // only because of that, the CSQC exception can work
 819         {
 820                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 821                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
 822         }
 823
 824         // send at this time so it's guaranteed to get executed at the right time
 825         {
 826                 client_t *save;
 827                 save = host_client;
 828                 host_client = client;
 829                 Curl_SendRequirements();
 830                 host_client = save;
 831         }
 832
 833         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
 834         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
 835         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
 836
 837         if (!coop.integer && deathmatch.integer)
 838                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
 839         else
 840                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
 841
 842         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
 843
 844         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
 845                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
 846         MSG_WriteByte (&client->netconnection->message, 0);
 847
 848         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
 849                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
 850         MSG_WriteByte (&client->netconnection->message, 0);
 851
 852 // send music
 853         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
 854         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 855         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 856
 857 // set view
 858 // store this in clientcamera, too
 859         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
 860         MSG_WriteByte (&client->netconnection->message, svc_setview);
 861         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
 862
 863         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
 864         MSG_WriteByte (&client->netconnection->message, 1);
 865
 866         client->spawned = false;                // need prespawn, spawn, etc
 867         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
 868
 869         // clear movement info until client enters the new level properly
 870         memset(&client->cmd, 0, sizeof(client->cmd));
 871         client->movesequence = 0;
 872 #ifdef NUM_PING_TIMES
 873         for (i = 0;i < NUM_PING_TIMES;i++)
 874                 client->ping_times[i] = 0;
 875         client->num_pings = 0;
 876 #endif
 877         client->ping = 0;
 878
 879         // allow the client some time to send his keepalives, even if map loading took ages
 880         client->netconnection->timeout = realtime + net_connecttimeout.value;
 881 }
 882
 883 /*
 884 ================
 885 SV_ConnectClient
 886
 887 Initializes a client_t for a new net connection.  This will only be called
 888 once for a player each game, not once for each level change.
 889 ================
 890 */
 891 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 892 {
 893         client_t                *client;
 894         int                             i;
 895         float                   spawn_parms[NUM_SPAWN_PARMS];
 896
 897         client = svs.clients + clientnum;
 898
 899 // set up the client_t
 900         if (sv.loadgame)
 901                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 902         memset (client, 0, sizeof(*client));
 903         client->active = true;
 904         client->netconnection = netconnection;
 905
 906         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
 907
 908         strlcpy(client->name, "unconnected", sizeof(client->name));
 909         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
 910         client->spawned = false;
 911         client->edict = PRVM_EDICT_NUM(clientnum+1);
 912         if (client->netconnection)
 913                 client->netconnection->message.allowoverflow = true;            // we can catch it
 914         // prepare the unreliable message buffer
 915         client->unreliablemsg.data = client->unreliablemsg_data;
 916         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
 917         // updated by receiving "rate" command from client, this is also the default if not using a DP client
 918         client->rate = 1000000000;
 919         // no limits for local player
 920         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
 921                 client->rate = 1000000000;
 922         client->connecttime = realtime;
 923
 924         if (sv.loadgame)
 925                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 926         else
 927         {
 928                 // call the progs to get default spawn parms for the new client
 929                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
 930                 prog->globals.server->self = 0;
 931                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
 932                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 933                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
 934
 935                 // set up the entity for this client (including .colormap, .team, etc)
 936                 PRVM_ED_ClearEdict(client->edict);
 937         }
 938
 939         // don't call SendServerinfo for a fresh botclient because its fields have
 940         // not been set up by the qc yet
 941         if (client->netconnection)
 942                 SV_SendServerinfo (client);
 943         else
 944                 client->spawned = true;
 945 }
 946
 947
 948 /*
 949 ===============================================================================
 950
 951 FRAME UPDATES
 952
 953 ===============================================================================
 954 */
 955
 956 /*
 957 =============================================================================
 958
 959 The PVS must include a small area around the client to allow head bobbing
 960 or other small motion on the client side.  Otherwise, a bob might cause an
 961 entity that should be visible to not show up, especially when the bob
 962 crosses a waterline.
 963
 964 =============================================================================
 965 */
 966
 967 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
 968 {
 969         int i;
 970         unsigned int sendflags;
 971         unsigned int version;
 972         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
 973         unsigned int customizeentityforclient;
 974         float f;
 975         vec3_t cullmins, cullmaxs;
 976         dp_model_t *model;
 977         prvm_eval_t *val, *val2;
 978
 979         // this 2 billion unit check is actually to detect NAN origins
 980         // (we really don't want to send those)
 981         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
 982                 return false;
 983
 984         // EF_NODRAW prevents sending for any reason except for your own
 985         // client, so we must keep all clients in this superset
 986         effects = (unsigned)ent->fields.server->effects;
 987
 988         // we can omit invisible entities with no effects that are not clients
 989         // LordHavoc: this could kill tags attached to an invisible entity, I
 990         // just hope we never have to support that case
 991         i = (int)ent->fields.server->modelindex;
 992         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
 993
 994         flags = 0;
 995         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
 996         glowsize = (unsigned char)bound(0, i, 255);
 997         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
 998                 flags |= RENDER_GLOWTRAIL;
 999         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
1000                 flags |= RENDER_VIEWMODEL;
1001
1002         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
1003         light[0] = (unsigned short)bound(0, f, 65535);
1004         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
1005         light[1] = (unsigned short)bound(0, f, 65535);
1006         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
1007         light[2] = (unsigned short)bound(0, f, 65535);
1008         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1009         light[3] = (unsigned short)bound(0, f, 65535);
1010         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1011         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1012
1013         if (gamemode == GAME_TENEBRAE)
1014         {
1015                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1016                 if (effects & 16)
1017                 {
1018                         effects &= ~16;
1019                         lightpflags |= PFLAGS_FULLDYNAMIC;
1020                 }
1021                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1022                 if (effects & 32)
1023                 {
1024                         effects &= ~32;
1025                         light[0] = (int)(0.2*256);
1026                         light[1] = (int)(1.0*256);
1027                         light[2] = (int)(0.2*256);
1028                         light[3] = 200;
1029                         lightpflags |= PFLAGS_FULLDYNAMIC;
1030                 }
1031         }
1032
1033         specialvisibilityradius = 0;
1034         if (lightpflags & PFLAGS_FULLDYNAMIC)
1035                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1036         if (glowsize)
1037                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1038         if (flags & RENDER_GLOWTRAIL)
1039                 specialvisibilityradius = max(specialvisibilityradius, 100);
1040         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1041         {
1042                 if (effects & EF_BRIGHTFIELD)
1043                         specialvisibilityradius = max(specialvisibilityradius, 80);
1044                 if (effects & EF_MUZZLEFLASH)
1045                         specialvisibilityradius = max(specialvisibilityradius, 100);
1046                 if (effects & EF_BRIGHTLIGHT)
1047                         specialvisibilityradius = max(specialvisibilityradius, 400);
1048                 if (effects & EF_DIMLIGHT)
1049                         specialvisibilityradius = max(specialvisibilityradius, 200);
1050                 if (effects & EF_RED)
1051                         specialvisibilityradius = max(specialvisibilityradius, 200);
1052                 if (effects & EF_BLUE)
1053                         specialvisibilityradius = max(specialvisibilityradius, 200);
1054                 if (effects & EF_FLAME)
1055                         specialvisibilityradius = max(specialvisibilityradius, 250);
1056                 if (effects & EF_STARDUST)
1057                         specialvisibilityradius = max(specialvisibilityradius, 100);
1058         }
1059
1060         // early culling checks
1061         // (final culling is done by SV_MarkWriteEntityStateToClient)
1062         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1063         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1064                 return false;
1065
1066         *cs = defaultstate;
1067         cs->active = true;
1068         cs->number = enumber;
1069         VectorCopy(ent->fields.server->origin, cs->origin);
1070         VectorCopy(ent->fields.server->angles, cs->angles);
1071         cs->flags = flags;
1072         cs->effects = effects;
1073         cs->colormap = (unsigned)ent->fields.server->colormap;
1074         cs->modelindex = modelindex;
1075         cs->skin = (unsigned)ent->fields.server->skin;
1076         cs->frame = (unsigned)ent->fields.server->frame;
1077         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1078         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1079         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1080         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1081         cs->customizeentityforclient = customizeentityforclient;
1082         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1083         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1084         cs->glowsize = glowsize;
1085
1086         // don't need to init cs->colormod because the defaultstate did that for us
1087         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1088         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1089         if (val->vector[0] || val->vector[1] || val->vector[2])
1090         {
1091                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1092                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1093                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1094         }
1095
1096         cs->modelindex = modelindex;
1097
1098         cs->alpha = 255;
1099         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1100         if (f)
1101         {
1102                 i = (int)f;
1103                 cs->alpha = (unsigned char)bound(0, i, 255);
1104         }
1105         // halflife
1106         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1107         if (f)
1108         {
1109                 i = (int)f;
1110                 cs->alpha = (unsigned char)bound(0, i, 255);
1111         }
1112
1113         cs->scale = 16;
1114         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1115         if (f)
1116         {
1117                 i = (int)f;
1118                 cs->scale = (unsigned char)bound(0, i, 255);
1119         }
1120
1121         cs->glowcolor = 254;
1122         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1123         if (f)
1124                 cs->glowcolor = (int)f;
1125
1126         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1127                 cs->effects |= EF_FULLBRIGHT;
1128
1129         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1130         if (val && val->_float)
1131                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1132
1133         if (ent->fields.server->movetype == MOVETYPE_STEP)
1134                 cs->flags |= RENDER_STEP;
1135         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)
1136                 cs->flags |= RENDER_LOWPRECISION;
1137         if (ent->fields.server->colormap >= 1024)
1138                 cs->flags |= RENDER_COLORMAPPED;
1139         if (cs->viewmodelforclient)
1140                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1141
1142         cs->light[0] = light[0];
1143         cs->light[1] = light[1];
1144         cs->light[2] = light[2];
1145         cs->light[3] = light[3];
1146         cs->lightstyle = lightstyle;
1147         cs->lightpflags = lightpflags;
1148
1149         cs->specialvisibilityradius = specialvisibilityradius;
1150
1151         // calculate the visible box of this entity (don't use the physics box
1152         // as that is often smaller than a model, and would not count
1153         // specialvisibilityradius)
1154         if ((model = sv.models[modelindex]) && (model->type != mod_null))
1155         {
1156                 float scale = cs->scale * (1.0f / 16.0f);
1157                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1158                 {
1159                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1160                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1161                 }
1162                 else if (cs->angles[1])
1163                 {
1164                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1165                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1166                 }
1167                 else
1168                 {
1169                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1170                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1171                 }
1172         }
1173         else
1174         {
1175                 // if there is no model (or it could not be loaded), use the physics box
1176                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1177                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1178         }
1179         if (specialvisibilityradius)
1180         {
1181                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1182                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1183                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1184                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1185                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1186                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1187         }
1188
1189         // calculate center of bbox for network prioritization purposes
1190         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1191
1192         // if culling box has moved, update pvs cluster links
1193         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1194         {
1195                 VectorCopy(cullmins, ent->priv.server->cullmins);
1196                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1197                 // a value of -1 for pvs_numclusters indicates that the links are not
1198                 // cached, and should be re-tested each time, this is the case if the
1199                 // culling box touches too many pvs clusters to store, or if the world
1200                 // model does not support FindBoxClusters
1201                 ent->priv.server->pvs_numclusters = -1;
1202                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1203                 {
1204                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1205                         if (i <= MAX_ENTITYCLUSTERS)
1206                                 ent->priv.server->pvs_numclusters = i;
1207                 }
1208         }
1209
1210         // we need to do some csqc entity upkeep here
1211         // get self.SendFlags and clear them
1212         // (to let the QC know that they've been read)
1213         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity);
1214         if (val->function)
1215         {
1216                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1217                 sendflags = (unsigned int)val->_float;
1218                 val->_float = 0;
1219                 // legacy self.Version system
1220                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1221                 if (val2->_float)
1222                 {
1223                         version = (unsigned int)val2->_float;
1224                         if (sv.csqcentityversion[enumber] != version)
1225                                 sendflags = 0xFFFFFF;
1226                         sv.csqcentityversion[enumber] = version;
1227                 }
1228                 // move sendflags into the per-client sendflags
1229                 if (sendflags)
1230                         for (i = 0;i < svs.maxclients;i++)
1231                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1232         }
1233
1234         return true;
1235 }
1236
1237 void SV_PrepareEntitiesForSending(void)
1238 {
1239         int e;
1240         prvm_edict_t *ent;
1241         // send all entities that touch the pvs
1242         sv.numsendentities = 0;
1243         sv.sendentitiesindex[0] = NULL;
1244         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1245         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1246         {
1247                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1248                 {
1249                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1250                         sv.numsendentities++;
1251                 }
1252         }
1253 }
1254
1255 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1256 {
1257         int isbmodel;
1258         dp_model_t *model;
1259         prvm_edict_t *ed;
1260         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1261                 return;
1262         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1263         sv.writeentitiestoclient_stats_totalentities++;
1264
1265         if (s->customizeentityforclient)
1266         {
1267                 prog->globals.server->self = s->number;
1268                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1269                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1270                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1271                         return;
1272         }
1273
1274         // never reject player
1275         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1276         {
1277                 // check various rejection conditions
1278                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1279                         return;
1280                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1281                         return;
1282                 if (s->effects & EF_NODRAW)
1283                         return;
1284                 // LordHavoc: only send entities with a model or important effects
1285                 if (!s->modelindex && s->specialvisibilityradius == 0)
1286                         return;
1287
1288                 isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
1289                 // viewmodels don't have visibility checking
1290                 if (s->viewmodelforclient)
1291                 {
1292                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1293                                 return;
1294                 }
1295                 else if (s->tagentity)
1296                 {
1297                         // tag attached entities simply check their parent
1298                         if (!sv.sendentitiesindex[s->tagentity])
1299                                 return;
1300                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1301                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1302                                 return;
1303                 }
1304                 // always send world submodels in newer protocols because they don't
1305                 // generate much traffic (in old protocols they hog bandwidth)
1306                 // but only if sv_cullentities_nevercullbmodels is off
1307                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1308                 {
1309                         // entity has survived every check so far, check if visible
1310                         ed = PRVM_EDICT_NUM(s->number);
1311
1312                         // if not touching a visible leaf
1313                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1314                         {
1315                                 if (ed->priv.server->pvs_numclusters < 0)
1316                                 {
1317                                         // entity too big for clusters list
1318                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1319                                         {
1320                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1321                                                 return;
1322                                         }
1323                                 }
1324                                 else
1325                                 {
1326                                         int i;
1327                                         // check cached clusters list
1328                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1329                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1330                                                         break;
1331                                         if (i == ed->priv.server->pvs_numclusters)
1332                                         {
1333                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1334                                                 return;
1335                                         }
1336                                 }
1337                         }
1338
1339                         // or not seen by random tracelines
1340                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1341                         {
1342                                 int samples =
1343                                         s->number <= svs.maxclients
1344                                                 ? sv_cullentities_trace_samples_players.integer
1345                                                 :
1346                                         s->specialvisibilityradius
1347                                                 ? sv_cullentities_trace_samples_extra.integer
1348                                                 : sv_cullentities_trace_samples.integer;
1349                                 float enlarge = sv_cullentities_trace_enlarge.value;
1350
1351                                 qboolean visible = TRUE;
1352
1353                                 if(samples > 0)
1354                                 {
1355                                         do
1356                                         {
1357                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1358                                                         break; // directly visible from the server's view
1359
1360                                                 if(sv_cullentities_trace_prediction.integer)
1361                                                 {
1362                                                         vec3_t predeye;
1363
1364                                                         // get player velocity
1365                                                         float predtime = bound(0, host_client->ping, 0.2); // / 2
1366                                                                 // sorry, no wallhacking by high ping please, and at 200ms
1367                                                                 // ping a FPS is annoying to play anyway and a player is
1368                                                                 // likely to have changed his direction
1369                                                         VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1370                                                         if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1371                                                         {
1372                                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1373                                                                         break; // directly visible from the predicted view
1374                                                         }
1375                                                         else
1376                                                         {
1377                                                                 //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1378                                                         }
1379                                                 }
1380
1381                                                 // when we get here, we can't see the entity
1382                                                 visible = false;
1383                                         }
1384                                         while(0);
1385
1386                                         if(visible)
1387                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1388                                                         realtime + (
1389                                                                 s->number <= svs.maxclients
1390                                                                         ? sv_cullentities_trace_delay_players.value
1391                                                                         : sv_cullentities_trace_delay.value
1392                                                         );
1393                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1394                                         {
1395                                                 sv.writeentitiestoclient_stats_culled_trace++;
1396                                                 return;
1397                                         }
1398                                 }
1399                         }
1400                 }
1401         }
1402
1403         // this just marks it for sending
1404         // FIXME: it would be more efficient to send here, but the entity
1405         // compressor isn't that flexible
1406         sv.writeentitiestoclient_stats_visibleentities++;
1407         sv.sententities[s->number] = sv.sententitiesmark;
1408 }
1409
1410 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1411 {
1412         qboolean need_empty = false;
1413         int i, numsendstates;
1414         entity_state_t *s;
1415         prvm_edict_t *camera;
1416
1417         // if there isn't enough space to accomplish anything, skip it
1418         if (msg->cursize + 25 > maxsize)
1419                 return;
1420
1421         sv.writeentitiestoclient_msg = msg;
1422         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1423
1424         sv.writeentitiestoclient_stats_culled_pvs = 0;
1425         sv.writeentitiestoclient_stats_culled_trace = 0;
1426         sv.writeentitiestoclient_stats_visibleentities = 0;
1427         sv.writeentitiestoclient_stats_totalentities = 0;
1428
1429 // find the client's PVS
1430         // the real place being tested from
1431         camera = PRVM_EDICT_NUM( client->clientcamera );
1432         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1433         sv.writeentitiestoclient_pvsbytes = 0;
1434         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1435                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
1436
1437         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1438
1439         sv.sententitiesmark++;
1440
1441         for (i = 0;i < sv.numsendentities;i++)
1442                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1443
1444         numsendstates = 0;
1445         for (i = 0;i < sv.numsendentities;i++)
1446         {
1447                 if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
1448                 {
1449                         s = &sv.writeentitiestoclient_sendstates[numsendstates++];
1450                         *s = sv.sendentities[i];
1451                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1452                                 s->flags |= RENDER_EXTERIORMODEL;
1453                 }
1454         }
1455
1456         if (sv_cullentities_stats.integer)
1457                 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);
1458
1459         if(client->entitydatabase5)
1460                 need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, client->entitydatabase5->latestframenum + 1);
1461         else
1462                 EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, 0);
1463
1464         if (client->entitydatabase5)
1465                 EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
1466         else if (client->entitydatabase4)
1467         {
1468                 EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1469                 Protocol_WriteStatsReliable();
1470         }
1471         else if (client->entitydatabase)
1472         {
1473                 EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1474                 Protocol_WriteStatsReliable();
1475         }
1476         else
1477         {
1478                 EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1479                 Protocol_WriteStatsReliable();
1480         }
1481 }
1482
1483 /*
1484 =============
1485 SV_CleanupEnts
1486
1487 =============
1488 */
1489 static void SV_CleanupEnts (void)
1490 {
1491         int             e;
1492         prvm_edict_t    *ent;
1493
1494         ent = PRVM_NEXT_EDICT(prog->edicts);
1495         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1496                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1497 }
1498
1499 /*
1500 ==================
1501 SV_WriteClientdataToMessage
1502
1503 ==================
1504 */
1505 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1506 {
1507         int             bits;
1508         int             i;
1509         prvm_edict_t    *other;
1510         int             items;
1511         prvm_eval_t     *val;
1512         vec3_t  punchvector;
1513         int             viewzoom;
1514         const char *s;
1515         float   *statsf = (float *)stats;
1516
1517 //
1518 // send a damage message
1519 //
1520         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1521         {
1522                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1523                 MSG_WriteByte (msg, svc_damage);
1524                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1525                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1526                 for (i=0 ; i<3 ; i++)
1527                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1528
1529                 ent->fields.server->dmg_take = 0;
1530                 ent->fields.server->dmg_save = 0;
1531         }
1532
1533 //
1534 // send the current viewpos offset from the view entity
1535 //
1536         SV_SetIdealPitch ();            // how much to look up / down ideally
1537
1538 // a fixangle might get lost in a dropped packet.  Oh well.
1539         if(ent->fields.server->fixangle)
1540         {
1541                 // angle fixing was requested by global thinking code...
1542                 // so store the current angles for later use
1543                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1544                 host_client->fixangle_angles_set = TRUE;
1545
1546                 // and clear fixangle for the next frame
1547                 ent->fields.server->fixangle = 0;
1548         }
1549
1550         if (host_client->fixangle_angles_set)
1551         {
1552                 MSG_WriteByte (msg, svc_setangle);
1553                 for (i=0 ; i < 3 ; i++)
1554                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1555                 host_client->fixangle_angles_set = FALSE;
1556         }
1557
1558         // stuff the sigil bits into the high bits of items for sbar, or else
1559         // mix in items2
1560         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1561         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1562                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1563         else
1564                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1565
1566         VectorClear(punchvector);
1567         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1568                 VectorCopy(val->vector, punchvector);
1569
1570         // cache weapon model name and index in client struct to save time
1571         // (this search can be almost 1% of cpu time!)
1572         s = PRVM_GetString(ent->fields.server->weaponmodel);
1573         if (strcmp(s, client->weaponmodel))
1574         {
1575                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1576                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1577         }
1578
1579         viewzoom = 255;
1580         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1581                 viewzoom = (int)(val->_float * 255.0f);
1582         if (viewzoom == 0)
1583                 viewzoom = 255;
1584
1585         bits = 0;
1586
1587         if ((int)ent->fields.server->flags & FL_ONGROUND)
1588                 bits |= SU_ONGROUND;
1589         if (ent->fields.server->waterlevel >= 2)
1590                 bits |= SU_INWATER;
1591         if (ent->fields.server->idealpitch)
1592                 bits |= SU_IDEALPITCH;
1593
1594         for (i=0 ; i<3 ; i++)
1595         {
1596                 if (ent->fields.server->punchangle[i])
1597                         bits |= (SU_PUNCH1<<i);
1598                 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)
1599                         if (punchvector[i])
1600                                 bits |= (SU_PUNCHVEC1<<i);
1601                 if (ent->fields.server->velocity[i])
1602                         bits |= (SU_VELOCITY1<<i);
1603         }
1604
1605         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1606         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1607         stats[STAT_ITEMS] = items;
1608         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1609         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1610         stats[STAT_WEAPON] = client->weaponmodelindex;
1611         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1612         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1613         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1614         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1615         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1616         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1617         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1618         stats[STAT_VIEWZOOM] = viewzoom;
1619         stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
1620         stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
1621         // the QC bumps these itself by sending svc_'s, so we have to keep them
1622         // zero or they'll be corrected by the engine
1623         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1624         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1625
1626         // movement settings for prediction
1627         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1628         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1629         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1630         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1631         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1632         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1633         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1634         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1635         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1636         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1637         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1638         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1639         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1640         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1641         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1642         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1643         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1644         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1645         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1646         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1647         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1648         statsf[STAT_TIMELIMIT] = timelimit.value;
1649
1650         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)
1651         {
1652                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1653                 bits |= SU_ITEMS;
1654                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1655                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1656                 bits |= SU_WEAPON;
1657                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1658                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1659                         if (viewzoom != 255)
1660                                 bits |= SU_VIEWZOOM;
1661         }
1662
1663         if (bits >= 65536)
1664                 bits |= SU_EXTEND1;
1665         if (bits >= 16777216)
1666                 bits |= SU_EXTEND2;
1667
1668         // send the data
1669         MSG_WriteByte (msg, svc_clientdata);
1670         MSG_WriteShort (msg, bits);
1671         if (bits & SU_EXTEND1)
1672                 MSG_WriteByte(msg, bits >> 16);
1673         if (bits & SU_EXTEND2)
1674                 MSG_WriteByte(msg, bits >> 24);
1675
1676         if (bits & SU_VIEWHEIGHT)
1677                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1678
1679         if (bits & SU_IDEALPITCH)
1680                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1681
1682         for (i=0 ; i<3 ; i++)
1683         {
1684                 if (bits & (SU_PUNCH1<<i))
1685                 {
1686                         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)
1687                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1688                         else
1689                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1690                 }
1691                 if (bits & (SU_PUNCHVEC1<<i))
1692                 {
1693                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1694                                 MSG_WriteCoord16i(msg, punchvector[i]);
1695                         else
1696                                 MSG_WriteCoord32f(msg, punchvector[i]);
1697                 }
1698                 if (bits & (SU_VELOCITY1<<i))
1699                 {
1700                         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)
1701                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1702                         else
1703                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1704                 }
1705         }
1706
1707         if (bits & SU_ITEMS)
1708                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1709
1710         if (sv.protocol == PROTOCOL_DARKPLACES5)
1711         {
1712                 if (bits & SU_WEAPONFRAME)
1713                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1714                 if (bits & SU_ARMOR)
1715                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1716                 if (bits & SU_WEAPON)
1717                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1718                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1719                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1720                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1721                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1722                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1723                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1724                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1725                 if (bits & SU_VIEWZOOM)
1726                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1727         }
1728         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)
1729         {
1730                 if (bits & SU_WEAPONFRAME)
1731                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1732                 if (bits & SU_ARMOR)
1733                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1734                 if (bits & SU_WEAPON)
1735                 {
1736                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1737                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
1738                         else
1739                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
1740                 }
1741                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1742                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1743                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1744                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1745                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1746                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1747                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1748                 {
1749                         for (i = 0;i < 32;i++)
1750                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1751                                         break;
1752                         MSG_WriteByte (msg, i);
1753                 }
1754                 else
1755                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1756                 if (bits & SU_VIEWZOOM)
1757                 {
1758                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1759                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1760                         else
1761                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1762                 }
1763         }
1764 }
1765
1766 void SV_FlushBroadcastMessages(void)
1767 {
1768         int i;
1769         client_t *client;
1770         if (sv.datagram.cursize <= 0)
1771                 return;
1772         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1773         {
1774                 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])))
1775                         continue;
1776                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1777                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1778         }
1779         SZ_Clear(&sv.datagram);
1780 }
1781
1782 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize)
1783 {
1784         // scan the splitpoints to find out how many we can fit in
1785         int numsegments, j, split;
1786         if (!client->unreliablemsg_splitpoints)
1787                 return;
1788         // always accept the first one if it's within 1024 bytes, this ensures
1789         // that very big datagrams which are over the rate limit still get
1790         // through, just to keep it working
1791         j = msg->cursize + client->unreliablemsg_splitpoint[0];
1792         if (maxsize < 1024 && j > maxsize && j <= 1024)
1793         {
1794                 numsegments = 1;
1795                 maxsize = 1024;
1796         }
1797         else
1798                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1799                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
1800                                 break;
1801         if (numsegments > 0)
1802         {
1803                 // some will fit, so add the ones that will fit
1804                 split = client->unreliablemsg_splitpoint[numsegments-1];
1805                 // note this discards ones that were accepted by the segments scan but
1806                 // can not fit, such as a really huge first one that will never ever
1807                 // fit in a packet...
1808                 if (msg->cursize + split <= maxsize)
1809                         SZ_Write(msg, client->unreliablemsg.data, split);
1810                 // remove the part we sent, keeping any remaining data
1811                 client->unreliablemsg.cursize -= split;
1812                 if (client->unreliablemsg.cursize > 0)
1813                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1814                 // adjust remaining splitpoints
1815                 client->unreliablemsg_splitpoints -= numsegments;
1816                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1817                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1818         }
1819 }
1820
1821 /*
1822 =======================
1823 SV_SendClientDatagram
1824 =======================
1825 */
1826 static void SV_SendClientDatagram (client_t *client)
1827 {
1828         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1829         sizebuf_t msg;
1830         int stats[MAX_CL_STATS];
1831         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1832
1833         // obey rate limit by limiting packet frequency if the packet size
1834         // limiting fails
1835         // (usually this is caused by reliable messages)
1836         if (!NetConn_CanSend(client->netconnection))
1837                 return;
1838
1839         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1840         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1841         if (sv_maxrate.integer != maxrate)
1842                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1843
1844         // clientrate determines the 'cleartime' of a packet
1845         // (how long to wait before sending another, based on this packet's size)
1846         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1847
1848         switch (sv.protocol)
1849         {
1850         case PROTOCOL_QUAKE:
1851         case PROTOCOL_QUAKEDP:
1852         case PROTOCOL_NEHAHRAMOVIE:
1853         case PROTOCOL_NEHAHRABJP:
1854         case PROTOCOL_NEHAHRABJP2:
1855         case PROTOCOL_NEHAHRABJP3:
1856         case PROTOCOL_QUAKEWORLD:
1857                 // no packet size limit support on Quake protocols because it just
1858                 // causes missing entities/effects
1859                 // packets are simply sent less often to obey the rate limit
1860                 maxsize = 1024;
1861                 maxsize2 = 1024;
1862                 break;
1863         case PROTOCOL_DARKPLACES1:
1864         case PROTOCOL_DARKPLACES2:
1865         case PROTOCOL_DARKPLACES3:
1866         case PROTOCOL_DARKPLACES4:
1867                 // no packet size limit support on DP1-4 protocols because they kick
1868                 // the client off if they overflow, and miss effects
1869                 // packets are simply sent less often to obey the rate limit
1870                 maxsize = sizeof(sv_sendclientdatagram_buf);
1871                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1872                 break;
1873         default:
1874                 // DP5 and later protocols support packet size limiting which is a
1875                 // better method than limiting packet frequency as QW does
1876                 //
1877                 // at very low rates (or very small sys_ticrate) the packet size is
1878                 // not reduced below 128, but packets may be sent less often
1879                 maxsize = (int)(clientrate * sys_ticrate.value);
1880                 maxsize = bound(128, maxsize, 1400);
1881                 maxsize2 = 1400;
1882                 // csqc entities can easily exceed 128 bytes, so disable throttling in
1883                 // mods that use csqc (they are likely to use less bandwidth anyway)
1884                 if (sv.csqc_progsize > 0)
1885                         maxsize = maxsize2;
1886                 break;
1887         }
1888
1889         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1890         {
1891                 // for good singleplayer, send huge packets
1892                 maxsize = sizeof(sv_sendclientdatagram_buf);
1893                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1894                 // never limit frequency in singleplayer
1895                 clientrate = 1000000000;
1896         }
1897
1898         // while downloading, limit entity updates to half the packet
1899         // (any leftover space will be used for downloading)
1900         if (host_client->download_file)
1901                 maxsize /= 2;
1902
1903         msg.data = sv_sendclientdatagram_buf;
1904         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1905         msg.cursize = 0;
1906         msg.allowoverflow = false;
1907
1908         if (host_client->spawned)
1909         {
1910                 // the player is in the game
1911                 MSG_WriteByte (&msg, svc_time);
1912                 MSG_WriteFloat (&msg, sv.time);
1913
1914                 // add the client specific data to the datagram
1915                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1916                 // now update the stats[] array using any registered custom fields
1917                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1918                 // set host_client->statsdeltabits
1919                 Protocol_UpdateClientStats (stats);
1920
1921                 // add as many queued unreliable messages (effects) as we can fit
1922                 // limit effects to half of the remaining space
1923                 if (client->unreliablemsg.cursize)
1924                         SV_WriteUnreliableMessages (client, &msg, (msg.cursize + maxsize) / 2);
1925
1926                 // now write as many entities as we can fit, and also sends stats
1927                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
1928         }
1929         else if (realtime > client->keepalivetime)
1930         {
1931                 // the player isn't totally in the game yet
1932                 // send small keepalive messages if too much time has passed
1933                 // (may also be sending downloads)
1934                 client->keepalivetime = realtime + 5;
1935                 MSG_WriteChar (&msg, svc_nop);
1936         }
1937
1938         // if a download is active, see if there is room to fit some download data
1939         // in this packet
1940         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
1941         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1942         {
1943                 fs_offset_t downloadstart;
1944                 unsigned char data[1400];
1945                 downloadstart = FS_Tell(host_client->download_file);
1946                 downloadsize = min(downloadsize, (int)sizeof(data));
1947                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1948                 // note this sends empty messages if at the end of the file, which is
1949                 // necessary to keep the packet loss logic working
1950                 // (the last blocks may be lost and need to be re-sent, and that will
1951                 //  only occur if the client acks the empty end messages, revealing
1952                 //  a gap in the download progress, causing the last blocks to be
1953                 //  sent again)
1954                 MSG_WriteChar (&msg, svc_downloaddata);
1955                 MSG_WriteLong (&msg, downloadstart);
1956                 MSG_WriteShort (&msg, downloadsize);
1957                 if (downloadsize > 0)
1958                         SZ_Write (&msg, data, downloadsize);
1959         }
1960
1961         // reliable only if none is in progress
1962         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
1963                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
1964         // unreliable
1965         SV_WriteDemoMessage(client, &msg, false);
1966
1967 // send the datagram
1968         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1969         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1970                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1971 }
1972
1973 /*
1974 =======================
1975 SV_UpdateToReliableMessages
1976 =======================
1977 */
1978 static void SV_UpdateToReliableMessages (void)
1979 {
1980         int i, j;
1981         client_t *client;
1982         prvm_eval_t *val;
1983         const char *name;
1984         const char *model;
1985         const char *skin;
1986
1987 // check for changes to be sent over the reliable streams
1988         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1989         {
1990                 // update the host_client fields we care about according to the entity fields
1991                 host_client->edict = PRVM_EDICT_NUM(i+1);
1992
1993                 // DP_SV_CLIENTNAME
1994                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1995                 if (name == NULL)
1996                         name = "";
1997                 // always point the string back at host_client->name to keep it safe
1998                 strlcpy (host_client->name, name, sizeof (host_client->name));
1999                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
2000                 if (strcmp(host_client->old_name, host_client->name))
2001                 {
2002                         if (host_client->spawned)
2003                                 SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
2004                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
2005                         // send notification to all clients
2006                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
2007                         MSG_WriteByte (&sv.reliable_datagram, i);
2008                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
2009                         SV_WriteNetnameIntoDemo(host_client);
2010                 }
2011
2012                 // DP_SV_CLIENTCOLORS
2013                 // this is always found (since it's added by the progs loader)
2014                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2015                         host_client->colors = (int)val->_float;
2016                 if (host_client->old_colors != host_client->colors)
2017                 {
2018                         host_client->old_colors = host_client->colors;
2019                         // send notification to all clients
2020                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2021                         MSG_WriteByte (&sv.reliable_datagram, i);
2022                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2023                 }
2024
2025                 // NEXUIZ_PLAYERMODEL
2026                 if( prog->fieldoffsets.playermodel >= 0 ) {
2027                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2028                         if (model == NULL)
2029                                 model = "";
2030                         // always point the string back at host_client->name to keep it safe
2031                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2032                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2033                 }
2034
2035                 // NEXUIZ_PLAYERSKIN
2036                 if( prog->fieldoffsets.playerskin >= 0 ) {
2037                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2038                         if (skin == NULL)
2039                                 skin = "";
2040                         // always point the string back at host_client->name to keep it safe
2041                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2042                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2043                 }
2044
2045                 // TODO: add an extension name for this [1/17/2008 Black]
2046                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2047                         int oldclientcamera = host_client->clientcamera;
2048                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2049                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2050                         } else {
2051                                 host_client->clientcamera = val->edict;
2052                         }
2053
2054                         if( oldclientcamera != host_client->clientcamera ) {
2055                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
2056                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2057                         }
2058                 }
2059
2060                 // frags
2061                 host_client->frags = (int)host_client->edict->fields.server->frags;
2062                 if(gamemode == GAME_NEXUIZ)
2063                         if(!host_client->spawned && host_client->netconnection)
2064                                 host_client->frags = -666;
2065                 if (host_client->old_frags != host_client->frags)
2066                 {
2067                         host_client->old_frags = host_client->frags;
2068                         // send notification to all clients
2069                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2070                         MSG_WriteByte (&sv.reliable_datagram, i);
2071                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2072                 }
2073         }
2074
2075         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2076                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2077                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2078
2079         SZ_Clear (&sv.reliable_datagram);
2080 }
2081
2082
2083 /*
2084 =======================
2085 SV_SendClientMessages
2086 =======================
2087 */
2088 void SV_SendClientMessages (void)
2089 {
2090         int i, prepared = false;
2091
2092         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2093                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2094
2095         SV_FlushBroadcastMessages();
2096
2097 // update frags, names, etc
2098         SV_UpdateToReliableMessages();
2099
2100 // build individual updates
2101         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2102         {
2103                 if (!host_client->active)
2104                         continue;
2105                 if (!host_client->netconnection)
2106                         continue;
2107
2108                 if (host_client->netconnection->message.overflowed)
2109                 {
2110                         SV_DropClient (true);   // if the message couldn't send, kick off
2111                         continue;
2112                 }
2113
2114                 if (!prepared)
2115                 {
2116                         prepared = true;
2117                         // only prepare entities once per frame
2118                         SV_PrepareEntitiesForSending();
2119                 }
2120                 SV_SendClientDatagram (host_client);
2121         }
2122
2123 // clear muzzle flashes
2124         SV_CleanupEnts();
2125 }
2126
2127 static void SV_StartDownload_f(void)
2128 {
2129         if (host_client->download_file)
2130                 host_client->download_started = true;
2131 }
2132
2133 /*
2134  * Compression extension negotiation:
2135  *
2136  * Server to client:
2137  *   cl_serverextension_download 2
2138  *
2139  * Client to server:
2140  *   download <filename> <list of zero or more suppported compressions in order of preference>
2141  * e.g.
2142  *   download maps/map1.bsp lzo deflate huffman
2143  *
2144  * Server to client:
2145  *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
2146  * e.g.
2147  *   cl_downloadbegin 123456 maps/map1.bsp deflate
2148  *
2149  * The server may choose not to compress the file by sending no compression name, like:
2150  *   cl_downloadbegin 345678 maps/map1.bsp
2151  *
2152  * NOTE: the "download" command may only specify compression algorithms if
2153  *       cl_serverextension_download is 2!
2154  *       If cl_serverextension_download has a different value, the client must
2155  *       assume this extension is not supported!
2156  */
2157
2158 static void Download_CheckExtensions(void)
2159 {
2160         int i;
2161         int argc = Cmd_Argc();
2162
2163         // first reset them all
2164         host_client->download_deflate = false;
2165
2166         for(i = 2; i < argc; ++i)
2167         {
2168                 if(!strcmp(Cmd_Argv(i), "deflate"))
2169                 {
2170                         host_client->download_deflate = true;
2171                         break;
2172                 }
2173         }
2174 }
2175
2176 static void SV_Download_f(void)
2177 {
2178         const char *whichpack, *whichpack2, *extension;
2179         qboolean is_csqc; // so we need to check only once
2180
2181         if (Cmd_Argc() < 2)
2182         {
2183                 SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
2184                 SV_ClientPrintf("       supported extensions: deflate\n");
2185                 return;
2186         }
2187
2188         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2189         {
2190                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2191                 return;
2192         }
2193
2194         if (host_client->download_file)
2195         {
2196                 // at this point we'll assume the previous download should be aborted
2197                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2198                 Host_ClientCommands("\nstopdownload\n");
2199
2200                 // close the file and reset variables
2201                 FS_Close(host_client->download_file);
2202                 host_client->download_file = NULL;
2203                 host_client->download_name[0] = 0;
2204                 host_client->download_expectedposition = 0;
2205                 host_client->download_started = false;
2206         }
2207
2208         is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
2209
2210         if (!sv_allowdownloads.integer && !is_csqc)
2211         {
2212                 SV_ClientPrintf("Downloads are disabled on this server\n");
2213                 Host_ClientCommands("\nstopdownload\n");
2214                 return;
2215         }
2216
2217         Download_CheckExtensions();
2218
2219         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2220         extension = FS_FileExtension(host_client->download_name);
2221
2222         // host_client is asking to download a specified file
2223         if (developer.integer >= 100)
2224                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2225
2226         if(is_csqc)
2227         {
2228                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2229                 extensions[0] = '\0';
2230
2231                 if(host_client->download_deflate)
2232                         strlcat(extensions, " deflate", sizeof(extensions));
2233
2234                 Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2235
2236                 if(host_client->download_deflate)
2237                         host_client->download_file = FS_FileFromData(svs.csqc_progdata_deflated, svs.csqc_progsize_deflated, true);
2238                 else
2239                         host_client->download_file = FS_FileFromData(svs.csqc_progdata, sv.csqc_progsize, true);
2240
2241                 // no, no space is needed between %s and %s :P
2242                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2243
2244                 host_client->download_expectedposition = 0;
2245                 host_client->download_started = false;
2246                 host_client->sendsignon = true; // make sure this message is sent
2247                 return;
2248         }
2249
2250         if (!FS_FileExists(host_client->download_name))
2251         {
2252                 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);
2253                 Host_ClientCommands("\nstopdownload\n");
2254                 return;
2255         }
2256
2257         // check if the user is trying to download part of registered Quake(r)
2258         whichpack = FS_WhichPack(host_client->download_name);
2259         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2260         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2261         {
2262                 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);
2263                 Host_ClientCommands("\nstopdownload\n");
2264                 return;
2265         }
2266
2267         // check if the server has forbidden archive downloads entirely
2268         if (!sv_allowdownloads_inarchive.integer)
2269         {
2270                 whichpack = FS_WhichPack(host_client->download_name);
2271                 if (whichpack)
2272                 {
2273                         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);
2274                         Host_ClientCommands("\nstopdownload\n");
2275                         return;
2276                 }
2277         }
2278
2279         if (!sv_allowdownloads_config.integer)
2280         {
2281                 if (!strcasecmp(extension, "cfg"))
2282                 {
2283                         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);
2284                         Host_ClientCommands("\nstopdownload\n");
2285                         return;
2286                 }
2287         }
2288
2289         if (!sv_allowdownloads_dlcache.integer)
2290         {
2291                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2292                 {
2293                         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);
2294                         Host_ClientCommands("\nstopdownload\n");
2295                         return;
2296                 }
2297         }
2298
2299         if (!sv_allowdownloads_archive.integer)
2300         {
2301                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2302                 {
2303                         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);
2304                         Host_ClientCommands("\nstopdownload\n");
2305                         return;
2306                 }
2307         }
2308
2309         host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
2310         if (!host_client->download_file)
2311         {
2312                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2313                 Host_ClientCommands("\nstopdownload\n");
2314                 return;
2315         }
2316
2317         if (FS_FileSize(host_client->download_file) > 1<<30)
2318         {
2319                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2320                 Host_ClientCommands("\nstopdownload\n");
2321                 FS_Close(host_client->download_file);
2322                 host_client->download_file = NULL;
2323                 return;
2324         }
2325
2326         if (FS_FileSize(host_client->download_file) < 0)
2327         {
2328                 SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
2329                 Host_ClientCommands("\nstopdownload\n");
2330                 FS_Close(host_client->download_file);
2331                 host_client->download_file = NULL;
2332                 return;
2333         }
2334
2335         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2336
2337         /*
2338          * we can only do this if we would actually deflate on the fly
2339          * which we do not (yet)!
2340         {
2341                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2342                 extensions[0] = '\0';
2343
2344                 if(host_client->download_deflate)
2345                         strlcat(extensions, " deflate", sizeof(extensions));
2346
2347                 // no, no space is needed between %s and %s :P
2348                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2349         }
2350         */
2351         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2352
2353         host_client->download_expectedposition = 0;
2354         host_client->download_started = false;
2355         host_client->sendsignon = true; // make sure this message is sent
2356
2357         // the rest of the download process is handled in SV_SendClientDatagram
2358         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2359         //
2360         // no svc_downloaddata messages will be sent until sv_startdownload is
2361         // sent by the client
2362 }
2363
2364 /*
2365 ==============================================================================
2366
2367 SERVER SPAWNING
2368
2369 ==============================================================================
2370 */
2371
2372 /*
2373 ================
2374 SV_ModelIndex
2375
2376 ================
2377 */
2378 int SV_ModelIndex(const char *s, int precachemode)
2379 {
2380         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);
2381         char filename[MAX_QPATH];
2382         if (!s || !*s)
2383                 return 0;
2384         // testing
2385         //if (precachemode == 2)
2386         //      return 0;
2387         strlcpy(filename, s, sizeof(filename));
2388         for (i = 2;i < limit;i++)
2389         {
2390                 if (!sv.model_precache[i][0])
2391                 {
2392                         if (precachemode)
2393                         {
2394                                 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))
2395                                 {
2396                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2397                                         return 0;
2398                                 }
2399                                 if (precachemode == 1)
2400                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2401                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2402                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2403                                 if (sv.state != ss_loading)
2404                                 {
2405                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2406                                         MSG_WriteShort(&sv.reliable_datagram, i);
2407                                         MSG_WriteString(&sv.reliable_datagram, filename);
2408                                 }
2409                                 return i;
2410                         }
2411                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2412                         return 0;
2413                 }
2414                 if (!strcmp(sv.model_precache[i], filename))
2415                         return i;
2416         }
2417         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2418         return 0;
2419 }
2420
2421 /*
2422 ================
2423 SV_SoundIndex
2424
2425 ================
2426 */
2427 int SV_SoundIndex(const char *s, int precachemode)
2428 {
2429         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);
2430         char filename[MAX_QPATH];
2431         if (!s || !*s)
2432                 return 0;
2433         // testing
2434         //if (precachemode == 2)
2435         //      return 0;
2436         strlcpy(filename, s, sizeof(filename));
2437         for (i = 1;i < limit;i++)
2438         {
2439                 if (!sv.sound_precache[i][0])
2440                 {
2441                         if (precachemode)
2442                         {
2443                                 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))
2444                                 {
2445                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2446                                         return 0;
2447                                 }
2448                                 if (precachemode == 1)
2449                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2450                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2451                                 if (sv.state != ss_loading)
2452                                 {
2453                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2454                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2455                                         MSG_WriteString(&sv.reliable_datagram, filename);
2456                                 }
2457                                 return i;
2458                         }
2459                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2460                         return 0;
2461                 }
2462                 if (!strcmp(sv.sound_precache[i], filename))
2463                         return i;
2464         }
2465         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2466         return 0;
2467 }
2468
2469 /*
2470 ================
2471 SV_ParticleEffectIndex
2472
2473 ================
2474 */
2475 int SV_ParticleEffectIndex(const char *name)
2476 {
2477         int i, argc, linenumber, effectnameindex;
2478         fs_offset_t filesize;
2479         unsigned char *filedata;
2480         const char *text, *textstart, *textend;
2481         char argv[16][1024];
2482         if (!sv.particleeffectnamesloaded)
2483         {
2484                 sv.particleeffectnamesloaded = true;
2485                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2486                 for (i = 0;i < EFFECT_TOTAL;i++)
2487                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2488                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2489                 if (filedata)
2490                 {
2491                         textstart = (const char *)filedata;
2492                         textend = (const char *)filedata + filesize;
2493                         text = textstart;
2494                         for (linenumber = 1;;linenumber++)
2495                         {
2496                                 argc = 0;
2497                                 for (;;)
2498                                 {
2499                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2500                                                 break;
2501                                         if (argc < 16)
2502                                         {
2503                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2504                                                 argc++;
2505                                         }
2506                                 }
2507                                 if (com_token[0] == 0)
2508                                         break; // if the loop exited and it's not a \n, it's EOF
2509                                 if (argc < 1)
2510                                         continue;
2511                                 if (!strcmp(argv[0], "effect"))
2512                                 {
2513                                         if (argc == 2)
2514                                         {
2515                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2516                                                 {
2517                                                         if (sv.particleeffectname[effectnameindex][0])
2518                                                         {
2519                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2520                                                                         break;
2521                                                         }
2522                                                         else
2523                                                         {
2524                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2525                                                                 break;
2526                                                         }
2527                                                 }
2528                                                 // if we run out of names, abort
2529                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2530                                                 {
2531                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2532                                                         break;
2533                                                 }
2534                                         }
2535                                 }
2536                         }
2537                         Mem_Free(filedata);
2538                 }
2539         }
2540         // search for the name
2541         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2542                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2543                         return effectnameindex;
2544         // return 0 if we couldn't find it
2545         return 0;
2546 }
2547
2548 /*
2549 ================
2550 SV_CreateBaseline
2551
2552 ================
2553 */
2554 static void SV_CreateBaseline (void)
2555 {
2556         int i, entnum, large;
2557         prvm_edict_t *svent;
2558
2559         // LordHavoc: clear *all* states (note just active ones)
2560         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2561         {
2562                 // get the current server version
2563                 svent = PRVM_EDICT_NUM(entnum);
2564
2565                 // LordHavoc: always clear state values, whether the entity is in use or not
2566                 svent->priv.server->baseline = defaultstate;
2567
2568                 if (svent->priv.server->free)
2569                         continue;
2570                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2571                         continue;
2572
2573                 // create entity baseline
2574                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2575                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2576                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2577                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2578                 if (entnum > 0 && entnum <= svs.maxclients)
2579                 {
2580                         svent->priv.server->baseline.colormap = entnum;
2581                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2582                 }
2583                 else
2584                 {
2585                         svent->priv.server->baseline.colormap = 0;
2586                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2587                 }
2588
2589                 large = false;
2590                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2591                 {
2592                         large = true;
2593                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2594                                 large = false;
2595                 }
2596
2597                 // add to the message
2598                 if (large)
2599                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2600                 else
2601                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2602                 MSG_WriteShort (&sv.signon, entnum);
2603
2604                 if (large)
2605                 {
2606                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2607                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2608                 }
2609                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2610                 {
2611                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2612                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2613                 }
2614                 else
2615                 {
2616                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2617                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2618                 }
2619                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2620                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2621                 for (i=0 ; i<3 ; i++)
2622                 {
2623                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2624                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2625                 }
2626         }
2627 }
2628
2629 /*
2630 ================
2631 SV_Prepare_CSQC
2632
2633 Load csprogs.dat and comperss it so it doesn't need to be
2634 reloaded on request.
2635 ================
2636 */
2637 void SV_Prepare_CSQC(void)
2638 {
2639         fs_offset_t progsize;
2640
2641         if(svs.csqc_progdata)
2642         {
2643                 Con_DPrintf("Unloading old CSQC data.\n");
2644                 Mem_Free(svs.csqc_progdata);
2645                 if(svs.csqc_progdata_deflated)
2646                         Mem_Free(svs.csqc_progdata_deflated);
2647         }
2648
2649         svs.csqc_progdata = NULL;
2650         svs.csqc_progdata_deflated = NULL;
2651
2652         Con_Print("Loading csprogs.dat\n");
2653
2654         sv.csqc_progname[0] = 0;
2655         svs.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
2656
2657         if(progsize > 0)
2658         {
2659                 size_t deflated_size;
2660
2661                 sv.csqc_progsize = (int)progsize;
2662                 sv.csqc_progcrc = CRC_Block(svs.csqc_progdata, progsize);
2663                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2664                 Con_Printf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2665
2666                 Con_Print("Compressing csprogs.dat\n");
2667                 //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
2668                 svs.csqc_progdata_deflated = FS_Deflate(svs.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
2669                 svs.csqc_progsize_deflated = (int)deflated_size;
2670                 Con_Printf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
2671                 Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)svs.csqc_progsize_deflated);
2672         }
2673 }
2674
2675 /*
2676 ================
2677 SV_SaveSpawnparms
2678
2679 Grabs the current state of each client for saving across the
2680 transition to another level
2681 ================
2682 */
2683 void SV_SaveSpawnparms (void)
2684 {
2685         int             i, j;
2686
2687         svs.serverflags = (int)prog->globals.server->serverflags;
2688
2689         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2690         {
2691                 if (!host_client->active)
2692                         continue;
2693
2694         // call the progs to get default spawn parms for the new client
2695                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2696                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2697                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2698                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2699         }
2700 }
2701
2702 /*
2703 ================
2704 SV_/pawnServer
2705
2706 This is called at the start of each level
2707 ================
2708 */
2709
2710 void SV_SpawnServer (const char *server)
2711 {
2712         prvm_edict_t *ent;
2713         int i;
2714         char *entities;
2715         dp_model_t *worldmodel;
2716         char modelname[sizeof(sv.modelname)];
2717
2718         Con_DPrintf("SpawnServer: %s\n", server);
2719
2720         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2721
2722         if (!FS_FileExists(modelname))
2723         {
2724                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
2725                 return;
2726         }
2727
2728         if (cls.state != ca_dedicated)
2729         {
2730                 SCR_BeginLoadingPlaque();
2731                 S_StopAllSounds();
2732         }
2733
2734         if(sv.active)
2735         {
2736                 SV_VM_Begin();
2737                 if(prog->funcoffsets.SV_Shutdown)
2738                 {
2739                         func_t s = prog->funcoffsets.SV_Shutdown;
2740                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
2741                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
2742                 }
2743                 SV_VM_End();
2744         }
2745
2746         worldmodel = Mod_ForName(modelname, false, true, true);
2747         if (!worldmodel || !worldmodel->TraceBox)
2748         {
2749                 Con_Printf("Couldn't load map %s\n", modelname);
2750                 return;
2751         }
2752
2753         // let's not have any servers with no name
2754         if (hostname.string[0] == 0)
2755                 Cvar_Set ("hostname", "UNNAMED");
2756         scr_centertime_off = 0;
2757
2758         svs.changelevel_issued = false;         // now safe to issue another
2759
2760         // make the map a required file for clients
2761         Curl_ClearRequirements();
2762         Curl_RequireFile(modelname);
2763
2764 //
2765 // tell all connected clients that we are going to a new level
2766 //
2767         if (sv.active)
2768         {
2769                 client_t *client;
2770                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2771                 {
2772                         if (client->netconnection)
2773                         {
2774                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2775                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2776                         }
2777                 }
2778         }
2779         else
2780         {
2781                 // open server port
2782                 NetConn_OpenServerPorts(true);
2783         }
2784
2785 //
2786 // make cvars consistant
2787 //
2788         if (coop.integer)
2789                 Cvar_SetValue ("deathmatch", 0);
2790         // LordHavoc: it can be useful to have skills outside the range 0-3...
2791         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2792         //Cvar_SetValue ("skill", (float)current_skill);
2793         current_skill = (int)(skill.value + 0.5);
2794
2795 //
2796 // set up the new server
2797 //
2798         memset (&sv, 0, sizeof(sv));
2799         // if running a local client, make sure it doesn't try to access the last
2800         // level's data which is no longer valiud
2801         cls.signon = 0;
2802
2803         if(*sv_random_seed.string)
2804         {
2805                 srand(sv_random_seed.integer);
2806                 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);
2807         }
2808
2809         SV_VM_Setup();
2810
2811         sv.active = true;
2812
2813         strlcpy (sv.name, server, sizeof (sv.name));
2814
2815         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2816         if (sv.protocol == PROTOCOL_UNKNOWN)
2817         {
2818                 char buffer[1024];
2819                 Protocol_Names(buffer, sizeof(buffer));
2820                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2821                 sv.protocol = PROTOCOL_QUAKE;
2822         }
2823
2824         SV_VM_Begin();
2825
2826 // load progs to get entity field count
2827         //PR_LoadProgs ( sv_progs.string );
2828
2829         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2830         sv.datagram.cursize = 0;
2831         sv.datagram.data = sv.datagram_buf;
2832
2833         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2834         sv.reliable_datagram.cursize = 0;
2835         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2836
2837         sv.signon.maxsize = sizeof(sv.signon_buf);
2838         sv.signon.cursize = 0;
2839         sv.signon.data = sv.signon_buf;
2840
2841 // leave slots at start for clients only
2842         //prog->num_edicts = svs.maxclients+1;
2843
2844         sv.state = ss_loading;
2845         prog->allowworldwrites = true;
2846         sv.paused = false;
2847
2848         prog->globals.server->time = sv.time = 1.0;
2849
2850         Mod_ClearUsed();
2851         worldmodel->used = true;
2852
2853         strlcpy (sv.name, server, sizeof (sv.name));
2854         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2855         sv.worldmodel = worldmodel;
2856         sv.models[1] = sv.worldmodel;
2857
2858 //
2859 // clear world interaction links
2860 //
2861         World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
2862
2863         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2864
2865         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2866         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2867         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2868         {
2869                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2870                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2871         }
2872
2873 //
2874 // load the rest of the entities
2875 //
2876         // AK possible hack since num_edicts is still 0
2877         ent = PRVM_EDICT_NUM(0);
2878         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2879         ent->priv.server->free = false;
2880         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2881         ent->fields.server->modelindex = 1;             // world model
2882         ent->fields.server->solid = SOLID_BSP;
2883         ent->fields.server->movetype = MOVETYPE_PUSH;
2884         VectorCopy(sv.world.mins, ent->fields.server->mins);
2885         VectorCopy(sv.world.maxs, ent->fields.server->maxs);
2886         VectorCopy(sv.world.mins, ent->fields.server->absmin);
2887         VectorCopy(sv.world.maxs, ent->fields.server->absmax);
2888
2889         if (coop.value)
2890                 prog->globals.server->coop = coop.integer;
2891         else
2892                 prog->globals.server->deathmatch = deathmatch.integer;
2893
2894         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2895
2896 // serverflags are for cross level information (sigils)
2897         prog->globals.server->serverflags = svs.serverflags;
2898
2899         // we need to reset the spawned flag on all connected clients here so that
2900         // their thinks don't run during startup (before PutClientInServer)
2901         // we also need to set up the client entities now
2902         // and we need to set the ->edict pointers to point into the progs edicts
2903         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2904         {
2905                 host_client->spawned = false;
2906                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2907                 PRVM_ED_ClearEdict(host_client->edict);
2908         }
2909
2910         // load replacement entity file if found
2911         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2912         {
2913                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2914                 PRVM_ED_LoadFromFile (entities);
2915                 Mem_Free(entities);
2916         }
2917         else
2918                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2919
2920
2921         // LordHavoc: clear world angles (to fix e3m3.bsp)
2922         VectorClear(prog->edicts->fields.server->angles);
2923
2924 // all setup is completed, any further precache statements are errors
2925         sv.state = ss_active;
2926         prog->allowworldwrites = false;
2927
2928 // run two frames to allow everything to settle
2929         for (i = 0;i < 2;i++)
2930         {
2931                 sv.frametime = 0.1;
2932                 SV_Physics ();
2933         }
2934
2935         Mod_PurgeUnused();
2936
2937 // create a baseline for more efficient communications
2938         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)
2939                 SV_CreateBaseline ();
2940
2941         // to prevent network timeouts
2942         realtime = Sys_DoubleTime();
2943
2944 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2945         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2946         {
2947                 host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
2948                 if (!host_client->active)
2949                         continue;
2950                 if (host_client->netconnection)
2951                         SV_SendServerinfo(host_client);
2952                 else
2953                 {
2954                         int j;
2955                         // if client is a botclient coming from a level change, we need to
2956                         // set up client info that normally requires networking
2957
2958                         // copy spawn parms out of the client_t
2959                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2960                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2961
2962                         // call the spawn function
2963                         host_client->clientconnectcalled = true;
2964                         prog->globals.server->time = sv.time;
2965                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2966                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2967                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2968                         host_client->spawned = true;
2969                 }
2970         }
2971
2972         Con_DPrint("Server spawned.\n");
2973         NetConn_Heartbeat (2);
2974
2975         SV_VM_End();
2976 }
2977
2978 /////////////////////////////////////////////////////
2979 // SV VM stuff
2980
2981 static void SV_VM_CB_BeginIncreaseEdicts(void)
2982 {
2983         // links don't survive the transition, so unlink everything
2984         World_UnlinkAll(&sv.world);
2985 }
2986
2987 static void SV_VM_CB_EndIncreaseEdicts(void)
2988 {
2989         int i;
2990         prvm_edict_t *ent;
2991
2992         // link every entity except world
2993         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2994                 if (!ent->priv.server->free)
2995                         SV_LinkEdict(ent, false);
2996 }
2997
2998 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2999 {
3000         // LordHavoc: for consistency set these here
3001         int num = PRVM_NUM_FOR_EDICT(e) - 1;
3002
3003         e->priv.server->move = false; // don't move on first frame
3004
3005         if (num >= 0 && num < svs.maxclients)
3006         {
3007                 prvm_eval_t *val;
3008                 // set colormap and team on newly created player entity
3009                 e->fields.server->colormap = num + 1;
3010                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
3011                 // set netname/clientcolors back to client values so that
3012                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
3013                 // reset them
3014                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
3015                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
3016                         val->_float = svs.clients[num].colors;
3017                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
3018                 if( prog->fieldoffsets.playermodel >= 0 )
3019                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
3020                 if( prog->fieldoffsets.playerskin >= 0 )
3021                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
3022                 // Assign netaddress (IP Address, etc)
3023                 if(prog->fieldoffsets.netaddress >= 0)
3024                 { // Valid Field; Process
3025                         if(svs.clients[num].netconnection != NULL)
3026                         {// Valid Address; Assign
3027                                 // Acquire Readable Address
3028                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
3029                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
3030                         }
3031                         else
3032                                 // Invalid / Bot
3033                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
3034                 }
3035         }
3036 }
3037
3038 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
3039 {
3040         int i;
3041         int e;
3042
3043         World_UnlinkEdict(ed);          // unlink from world bsp
3044
3045         ed->fields.server->model = 0;
3046         ed->fields.server->takedamage = 0;
3047         ed->fields.server->modelindex = 0;
3048         ed->fields.server->colormap = 0;
3049         ed->fields.server->skin = 0;
3050         ed->fields.server->frame = 0;
3051         VectorClear(ed->fields.server->origin);
3052         VectorClear(ed->fields.server->angles);
3053         ed->fields.server->nextthink = -1;
3054         ed->fields.server->solid = 0;
3055
3056         // make sure csqc networking is aware of the removed entity
3057         e = PRVM_NUM_FOR_EDICT(ed);
3058         sv.csqcentityversion[e] = 0;
3059         for (i = 0;i < svs.maxclients;i++)
3060         {
3061                 if (svs.clients[i].csqcentityscope[e])
3062                         svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
3063                 svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
3064         }
3065 }
3066
3067 static void SV_VM_CB_CountEdicts(void)
3068 {
3069         int             i;
3070         prvm_edict_t    *ent;
3071         int             active, models, solid, step;
3072
3073         active = models = solid = step = 0;
3074         for (i=0 ; i<prog->num_edicts ; i++)
3075         {
3076                 ent = PRVM_EDICT_NUM(i);
3077                 if (ent->priv.server->free)
3078                         continue;
3079                 active++;
3080                 if (ent->fields.server->solid)
3081                         solid++;
3082                 if (ent->fields.server->model)
3083                         models++;
3084                 if (ent->fields.server->movetype == MOVETYPE_STEP)
3085                         step++;
3086         }
3087
3088         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
3089         Con_Printf("active    :%3i\n", active);
3090         Con_Printf("view      :%3i\n", models);
3091         Con_Printf("touch     :%3i\n", solid);
3092         Con_Printf("step      :%3i\n", step);
3093 }
3094
3095 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
3096 {
3097         // remove things from different skill levels or deathmatch
3098         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
3099         {
3100                 if (deathmatch.integer)
3101                 {
3102                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
3103                         {
3104                                 return false;
3105                         }
3106                 }
3107                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
3108                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
3109                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
3110                 {
3111                         return false;
3112                 }
3113         }
3114         return true;
3115 }
3116
3117 static void SV_VM_Setup(void)
3118 {
3119         PRVM_Begin;
3120         PRVM_InitProg( PRVM_SERVERPROG );
3121
3122         // allocate the mempools
3123         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
3124         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
3125         prog->builtins = vm_sv_builtins;
3126         prog->numbuiltins = vm_sv_numbuiltins;
3127         prog->headercrc = PROGHEADER_CRC;
3128         prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
3129         prog->max_edicts = 512;
3130         if (sv.protocol == PROTOCOL_QUAKE)
3131                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
3132         else if (sv.protocol == PROTOCOL_QUAKEDP)
3133                 prog->limit_edicts = 2048; // guessing
3134         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
3135                 prog->limit_edicts = 2048; // guessing!
3136         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
3137                 prog->limit_edicts = 4096; // guessing!
3138         else
3139                 prog->limit_edicts = MAX_EDICTS;
3140         prog->reserved_edicts = svs.maxclients;
3141         prog->edictprivate_size = sizeof(edict_engineprivate_t);
3142         prog->name = "server";
3143         prog->extensionstring = vm_sv_extensions;
3144         prog->loadintoworld = true;
3145
3146         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
3147         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
3148         prog->init_edict = SV_VM_CB_InitEdict;
3149         prog->free_edict = SV_VM_CB_FreeEdict;
3150         prog->count_edicts = SV_VM_CB_CountEdicts;
3151         prog->load_edict = SV_VM_CB_LoadEdict;
3152         prog->init_cmd = VM_SV_Cmd_Init;
3153         prog->reset_cmd = VM_SV_Cmd_Reset;
3154         prog->error_cmd = Host_Error;
3155
3156         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
3157         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
3158
3159         // some mods compiled with scrambling compilers lack certain critical
3160         // global names and field names such as "self" and "time" and "nextthink"
3161         // so we have to set these offsets manually, matching the entvars_t
3162         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
3163         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
3164         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
3165         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
3166         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
3167         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
3168         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
3169         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
3170         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
3171         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
3172         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
3173         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
3174         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
3175         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
3176         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
3177         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
3178         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
3179         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
3180         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
3181         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
3182         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
3183         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
3184         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
3185         // OP_STATE is always supported on server (due to entvars_t)
3186         prog->flag |= PRVM_OP_STATE;
3187
3188         VM_CustomStats_Clear();//[515]: csqc
3189
3190         PRVM_End;
3191
3192         SV_Prepare_CSQC();
3193 }
3194
3195 void SV_VM_Begin(void)
3196 {
3197         PRVM_Begin;
3198         PRVM_SetProg( PRVM_SERVERPROG );
3199
3200         prog->globals.server->time = (float) sv.time;
3201 }
3202
3203 void SV_VM_End(void)
3204 {
3205         PRVM_End;
3206 }