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(void);
  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_airstopaccelerate = {0, "sv_airstopaccelerate", "0", "when set, replacement for sv_airaccelerate when moving backwards"};
  54 cvar_t sv_airstrafeaccelerate = {0, "sv_airstrafeaccelerate", "0", "when set, replacement for sv_airaccelerate when just strafing"};
  55 cvar_t sv_maxairstrafespeed = {0, "sv_maxairstrafespeed", "0", "when set, replacement for sv_maxairspeed when just strafing"};
  56 cvar_t sv_aircontrol = {0, "sv_aircontrol", "0", "CPMA-style air control"};
  57 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
  58 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
  59 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
  60 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
  61 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
  62 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"};
  63 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"};
  64 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"};
  65 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)"};
  66 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)"};
  67 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)"};
  68 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!)"};
  69 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
  70 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
  71 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"};
  72 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  73 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"};
  74 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  75 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
  76 cvar_t sv_cullentities_trace_prediction_time = {0, "sv_cullentities_trace_prediction_time", "0.2", "how many seconds of prediction to use"};
  77 cvar_t sv_cullentities_trace_entityocclusion = {0, "sv_cullentities_trace_entityocclusion", "0", "also check if doors and other bsp models are in the way"};
  78 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
  79 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"};
  80 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"};
  81 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
  82 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
  83 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)"};
  84 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)"};
  85 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)"};
  86 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
  87 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
  88 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"};
  89 cvar_t sv_gameplayfix_consistentplayerprethink = {0, "sv_gameplayfix_consistentplayerprethink", "1", "improves fairness in multiplayer by running all PlayerPreThink functions (which fire weapons) before performing physics, then runing all PlayerPostThink functions"};
  90 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"};
  91 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)"};
  92 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"};
  93 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)"};
  94 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"};
  95 cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
  96 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
  97 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"};
  98 cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses, items, etc) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
  99 cvar_t sv_gameplayfix_noairborncorpse_allowsuspendeditems = {0, "sv_gameplayfix_noairborncorpse_allowsuspendeditems", "1", "causes entities sitting ontop of objects that are instantaneously remove to float in midair (special hack to allow a common level design trick for floating items)"};
 100 cvar_t sv_gameplayfix_nudgeoutofsolid = {0, "sv_gameplayfix_nudgeoutofsolid", "1", "attempts to fix physics errors (where an object ended up in solid for some reason)"};
 101 cvar_t sv_gameplayfix_nudgeoutofsolid_bias = {0, "sv_gameplayfix_nudgeoutofsolid_bias", "0.03125", "over-correction on nudgeoutofsolid logic, to prevent constant contact"};
 102 cvar_t sv_gameplayfix_q2airaccelerate = {0, "sv_gameplayfix_q2airaccelerate", "0", "Quake2-style air acceleration"};
 103 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"};
 104 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"};
 105 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)"};
 106 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)"};
 107 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"};
 108 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"};
 109 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
 110 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
 111 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
 112 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
 113 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)"};
 114 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
 115 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
 116 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
 117 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
 118 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
 119 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
 120 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
 121 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
 122 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"};
 123 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)"};
 124 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)"};
 125 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)"};
 126 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
 127 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
 128 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
 129 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"};
 130 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"};
 131 cvar_t sv_warsowbunny_airforwardaccel = {0, "sv_warsowbunny_airforwardaccel", "1.00001", "how fast you accelerate until you reach sv_maxspeed"};
 132 cvar_t sv_warsowbunny_accel = {0, "sv_warsowbunny_accel", "0.1585", "how fast you accelerate until after reaching sv_maxspeed (it gets harder as you near sv_warsowbunny_topspeed)"};
 133 cvar_t sv_warsowbunny_topspeed = {0, "sv_warsowbunny_topspeed", "925", "soft speed limit (can get faster with rjs and on ramps)"};
 134 cvar_t sv_warsowbunny_turnaccel = {0, "sv_warsowbunny_turnaccel", "0", "max sharpness of turns (also master switch for the sv_warsowbunny_* mode; set this to 9 to enable)"};
 135 cvar_t sv_warsowbunny_backtosideratio = {0, "sv_warsowbunny_backtosideratio", "0.8", "lower values make it easier to change direction without losing speed; the drawback is \"understeering\" in sharp turns"};
 136 cvar_t sv_onlycsqcnetworking = {0, "sv_onlycsqcnetworking", "0", "disables legacy entity networking code for higher performance (except on clients, which can still be legacy)"};
 137 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"};
 138 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"};
 139 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
 140
 141 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 142 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 143 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 144 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 145 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 146 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
 147 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
 148 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
 149 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
 150 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)"};
 151
 152 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
 153 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
 154 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
 155 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
 156 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
 157 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
 158 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
 159 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
 160 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
 161 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
 162 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
 163 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
 164 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
 165 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
 166 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
 167 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
 168 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
 169 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
 170 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
 171 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
 172 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 173
 174 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)"};
 175 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)" };
 176
 177 cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
 178
 179 server_t sv;
 180 server_static_t svs;
 181
 182 mempool_t *sv_mempool = NULL;
 183
 184 extern cvar_t slowmo;
 185 extern float            scr_centertime_off;
 186
 187 // MUST match effectnameindex_t in client.h
 188 static const char *standardeffectnames[EFFECT_TOTAL] =
 189 {
 190         "",
 191         "TE_GUNSHOT",
 192         "TE_GUNSHOTQUAD",
 193         "TE_SPIKE",
 194         "TE_SPIKEQUAD",
 195         "TE_SUPERSPIKE",
 196         "TE_SUPERSPIKEQUAD",
 197         "TE_WIZSPIKE",
 198         "TE_KNIGHTSPIKE",
 199         "TE_EXPLOSION",
 200         "TE_EXPLOSIONQUAD",
 201         "TE_TAREXPLOSION",
 202         "TE_TELEPORT",
 203         "TE_LAVASPLASH",
 204         "TE_SMALLFLASH",
 205         "TE_FLAMEJET",
 206         "EF_FLAME",
 207         "TE_BLOOD",
 208         "TE_SPARK",
 209         "TE_PLASMABURN",
 210         "TE_TEI_G3",
 211         "TE_TEI_SMOKE",
 212         "TE_TEI_BIGEXPLOSION",
 213         "TE_TEI_PLASMAHIT",
 214         "EF_STARDUST",
 215         "TR_ROCKET",
 216         "TR_GRENADE",
 217         "TR_BLOOD",
 218         "TR_WIZSPIKE",
 219         "TR_SLIGHTBLOOD",
 220         "TR_KNIGHTSPIKE",
 221         "TR_VORESPIKE",
 222         "TR_NEHAHRASMOKE",
 223         "TR_NEXUIZPLASMA",
 224         "TR_GLOWTRAIL",
 225         "SVC_PARTICLE"
 226 };
 227
 228 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
 229
 230 prvm_required_field_t reqfields[] =
 231 {
 232         {ev_entity, "cursor_trace_ent"},
 233         {ev_entity, "drawonlytoclient"},
 234         {ev_entity, "exteriormodeltoclient"},
 235         {ev_entity, "nodrawtoclient"},
 236         {ev_entity, "tag_entity"},
 237         {ev_entity, "viewmodelforclient"},
 238         {ev_float, "SendFlags"},
 239         {ev_float, "Version"},
 240         {ev_float, "alpha"},
 241         {ev_float, "ammo_cells1"},
 242         {ev_float, "ammo_lava_nails"},
 243         {ev_float, "ammo_multi_rockets"},
 244         {ev_float, "ammo_nails1"},
 245         {ev_float, "ammo_plasma"},
 246         {ev_float, "ammo_rockets1"},
 247         {ev_float, "ammo_shells1"},
 248         {ev_float, "button3"},
 249         {ev_float, "button4"},
 250         {ev_float, "button5"},
 251         {ev_float, "button6"},
 252         {ev_float, "button7"},
 253         {ev_float, "button8"},
 254         {ev_float, "button9"},
 255         {ev_float, "button10"},
 256         {ev_float, "button11"},
 257         {ev_float, "button12"},
 258         {ev_float, "button13"},
 259         {ev_float, "button14"},
 260         {ev_float, "button15"},
 261         {ev_float, "button16"},
 262         {ev_float, "buttonchat"},
 263         {ev_float, "buttonuse"},
 264         {ev_float, "clientcolors"},
 265         {ev_float, "cursor_active"},
 266         {ev_float, "disableclientprediction"},
 267         {ev_float, "fullbright"},
 268         {ev_float, "glow_color"},
 269         {ev_float, "glow_size"},
 270         {ev_float, "glow_trail"},
 271         {ev_float, "gravity"},
 272         {ev_float, "idealpitch"},
 273         {ev_float, "items2"},
 274         {ev_float, "light_lev"},
 275         {ev_float, "modelflags"},
 276         {ev_float, "pflags"},
 277         {ev_float, "ping"},
 278         {ev_float, "pitch_speed"},
 279         {ev_float, "pmodel"},
 280         {ev_float, "renderamt"}, // HalfLife support
 281         {ev_float, "rendermode"}, // HalfLife support
 282         {ev_float, "scale"},
 283         {ev_float, "style"},
 284         {ev_float, "tag_index"},
 285         {ev_float, "viewzoom"},
 286         {ev_function, "SendEntity"},
 287         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
 288         {ev_function, "customizeentityforclient"},
 289         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
 290         {ev_string, "netaddress"},
 291         {ev_string, "playermodel"},
 292         {ev_string, "playerskin"},
 293         {ev_vector, "color"},
 294         {ev_vector, "colormod"},
 295         {ev_vector, "cursor_screen"},
 296         {ev_vector, "cursor_trace_endpos"},
 297         {ev_vector, "cursor_trace_start"},
 298         {ev_vector, "glowmod"},
 299         {ev_vector, "movement"},
 300         {ev_vector, "punchvector"},
 301
 302         // physics
 303         //{ev_float, "solid"},
 304         //{ev_float, "movetype"},
 305         //{ev_float, "modelindex"},
 306         {ev_vector, "mass"},
 307         //{ev_vector, "origin"},
 308         //{ev_vector, "velocity"},
 309         //{ev_vector, "axis_forward"},
 310         //{ev_vector, "axis_left"},
 311         //{ev_vector, "axis_up"},
 312         //{ev_vector, "spinvelocity"},
 313         //{ev_vector, "angles"},
 314         //{ev_vector, "avelocity"},
 315
 316 };
 317
 318
 319
 320 //============================================================================
 321
 322 void SV_AreaStats_f(void)
 323 {
 324         World_PrintAreaStats(&sv.world, "server");
 325 }
 326
 327 /*
 328 ===============
 329 SV_Init
 330 ===============
 331 */
 332 void SV_Init (void)
 333 {
 334         // init the csqc progs cvars, since they are updated/used by the server code
 335         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
 336         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
 337         extern cvar_t csqc_progcrc;
 338         extern cvar_t csqc_progsize;
 339         Cvar_RegisterVariable (&csqc_progname);
 340         Cvar_RegisterVariable (&csqc_progcrc);
 341         Cvar_RegisterVariable (&csqc_progsize);
 342
 343         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
 344         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
 345         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
 346         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
 347
 348         Cvar_RegisterVariable (&coop);
 349         Cvar_RegisterVariable (&deathmatch);
 350         Cvar_RegisterVariable (&fraglimit);
 351         Cvar_RegisterVariable (&gamecfg);
 352         Cvar_RegisterVariable (&noexit);
 353         Cvar_RegisterVariable (&nomonsters);
 354         Cvar_RegisterVariable (&pausable);
 355         Cvar_RegisterVariable (&pr_checkextension);
 356         Cvar_RegisterVariable (&samelevel);
 357         Cvar_RegisterVariable (&skill);
 358         Cvar_RegisterVariable (&slowmo);
 359         Cvar_RegisterVariable (&sv_accelerate);
 360         Cvar_RegisterVariable (&sv_aim);
 361         Cvar_RegisterVariable (&sv_airaccel_qw);
 362         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
 363         Cvar_RegisterVariable (&sv_airaccelerate);
 364         Cvar_RegisterVariable (&sv_airstopaccelerate);
 365         Cvar_RegisterVariable (&sv_airstrafeaccelerate);
 366         Cvar_RegisterVariable (&sv_maxairstrafespeed);
 367         Cvar_RegisterVariable (&sv_aircontrol);
 368         Cvar_RegisterVariable (&sv_allowdownloads);
 369         Cvar_RegisterVariable (&sv_allowdownloads_archive);
 370         Cvar_RegisterVariable (&sv_allowdownloads_config);
 371         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
 372         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
 373         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
 374         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
 375         Cvar_RegisterVariable (&sv_clmovement_enable);
 376         Cvar_RegisterVariable (&sv_clmovement_minping);
 377         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
 378         Cvar_RegisterVariable (&sv_clmovement_inputtimeout);
 379         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
 380         Cvar_RegisterVariable (&sv_cullentities_pvs);
 381         Cvar_RegisterVariable (&sv_cullentities_stats);
 382         Cvar_RegisterVariable (&sv_cullentities_trace);
 383         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
 384         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
 385         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
 386         Cvar_RegisterVariable (&sv_cullentities_trace_entityocclusion);
 387         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
 388         Cvar_RegisterVariable (&sv_cullentities_trace_prediction_time);
 389         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
 390         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
 391         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
 392         Cvar_RegisterVariable (&sv_debugmove);
 393         Cvar_RegisterVariable (&sv_echobprint);
 394         Cvar_RegisterVariable (&sv_edgefriction);
 395         Cvar_RegisterVariable (&sv_entpatch);
 396         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
 397         Cvar_RegisterVariable (&sv_freezenonclients);
 398         Cvar_RegisterVariable (&sv_friction);
 399         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
 400         Cvar_RegisterVariable (&sv_gameplayfix_consistentplayerprethink);
 401         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
 402         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
 403         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
 404         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
 405         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
 406         Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
 407         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
 408         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
 409         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
 410         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse_allowsuspendeditems);
 411         Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid);
 412         Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid_bias);
 413         Cvar_RegisterVariable (&sv_gameplayfix_q2airaccelerate);
 414         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
 415         Cvar_RegisterVariable (&sv_gameplayfix_slidemoveprojectiles);
 416         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
 417         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
 418         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
 419         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
 420         Cvar_RegisterVariable (&sv_gravity);
 421         Cvar_RegisterVariable (&sv_idealpitchscale);
 422         Cvar_RegisterVariable (&sv_jumpstep);
 423         Cvar_RegisterVariable (&sv_jumpvelocity);
 424         Cvar_RegisterVariable (&sv_maxairspeed);
 425         Cvar_RegisterVariable (&sv_maxrate);
 426         Cvar_RegisterVariable (&sv_maxspeed);
 427         Cvar_RegisterVariable (&sv_maxvelocity);
 428         Cvar_RegisterVariable (&sv_newflymove);
 429         Cvar_RegisterVariable (&sv_nostep);
 430         Cvar_RegisterVariable (&sv_playerphysicsqc);
 431         Cvar_RegisterVariable (&sv_progs);
 432         Cvar_RegisterVariable (&sv_protocolname);
 433         Cvar_RegisterVariable (&sv_random_seed);
 434         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
 435         Cvar_RegisterVariable (&sv_sound_land);
 436         Cvar_RegisterVariable (&sv_sound_watersplash);
 437         Cvar_RegisterVariable (&sv_stepheight);
 438         Cvar_RegisterVariable (&sv_stopspeed);
 439         Cvar_RegisterVariable (&sv_wallfriction);
 440         Cvar_RegisterVariable (&sv_wateraccelerate);
 441         Cvar_RegisterVariable (&sv_waterfriction);
 442         Cvar_RegisterVariable (&sv_warsowbunny_airforwardaccel);
 443         Cvar_RegisterVariable (&sv_warsowbunny_accel);
 444         Cvar_RegisterVariable (&sv_warsowbunny_topspeed);
 445         Cvar_RegisterVariable (&sv_warsowbunny_turnaccel);
 446         Cvar_RegisterVariable (&sv_warsowbunny_backtosideratio);
 447         Cvar_RegisterVariable (&sv_onlycsqcnetworking);
 448         Cvar_RegisterVariable (&sys_ticrate);
 449         Cvar_RegisterVariable (&teamplay);
 450         Cvar_RegisterVariable (&timelimit);
 451
 452         Cvar_RegisterVariable (&saved1);
 453         Cvar_RegisterVariable (&saved2);
 454         Cvar_RegisterVariable (&saved3);
 455         Cvar_RegisterVariable (&saved4);
 456         Cvar_RegisterVariable (&savedgamecfg);
 457         Cvar_RegisterVariable (&scratch1);
 458         Cvar_RegisterVariable (&scratch2);
 459         Cvar_RegisterVariable (&scratch3);
 460         Cvar_RegisterVariable (&scratch4);
 461         Cvar_RegisterVariable (&temp1);
 462
 463         // LordHavoc: Nehahra uses these to pass data around cutscene demos
 464         if (gamemode == GAME_NEHAHRA)
 465         {
 466                 Cvar_RegisterVariable (&nehx00);
 467                 Cvar_RegisterVariable (&nehx01);
 468                 Cvar_RegisterVariable (&nehx02);
 469                 Cvar_RegisterVariable (&nehx03);
 470                 Cvar_RegisterVariable (&nehx04);
 471                 Cvar_RegisterVariable (&nehx05);
 472                 Cvar_RegisterVariable (&nehx06);
 473                 Cvar_RegisterVariable (&nehx07);
 474                 Cvar_RegisterVariable (&nehx08);
 475                 Cvar_RegisterVariable (&nehx09);
 476                 Cvar_RegisterVariable (&nehx10);
 477                 Cvar_RegisterVariable (&nehx11);
 478                 Cvar_RegisterVariable (&nehx12);
 479                 Cvar_RegisterVariable (&nehx13);
 480                 Cvar_RegisterVariable (&nehx14);
 481                 Cvar_RegisterVariable (&nehx15);
 482                 Cvar_RegisterVariable (&nehx16);
 483                 Cvar_RegisterVariable (&nehx17);
 484                 Cvar_RegisterVariable (&nehx18);
 485                 Cvar_RegisterVariable (&nehx19);
 486         }
 487         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
 488
 489         Cvar_RegisterVariable (&sv_autodemo_perclient);
 490         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
 491
 492         Cvar_RegisterVariable (&halflifebsp);
 493
 494         // any special defaults for gamemodes go here
 495         if (gamemode == GAME_NEHAHRA)
 496         {
 497                 // Nehahra pushable crates malfunction in some levels if this is on
 498                 Cvar_SetValueQuick (&sv_gameplayfix_upwardvelocityclearsongroundflag, 0);
 499                 // Nehahra NPC AI is confused by this feature
 500                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
 501         }
 502         if (gamemode == GAME_HIPNOTIC)
 503         {
 504                 // 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.
 505                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
 506                 // 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
 507                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
 508                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
 509                 Cvar_SetValueQuick (&sv_gameplayfix_slidemoveprojectiles, 0);
 510         }
 511         if (gamemode == GAME_ROGUE)
 512         {
 513                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 514                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
 515         }
 516         if (gamemode == GAME_NEXUIZ)
 517         {
 518                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 519                 Cvar_SetValueQuick (&sv_gameplayfix_q2airaccelerate, 1);
 520         }
 521
 522         sv_mempool = Mem_AllocPool("server", 0, NULL);
 523 }
 524
 525 static void SV_SaveEntFile_f(void)
 526 {
 527         char basename[MAX_QPATH];
 528         if (!sv.active || !sv.worldmodel)
 529         {
 530                 Con_Print("Not running a server\n");
 531                 return;
 532         }
 533         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
 534         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
 535 }
 536
 537
 538 /*
 539 =============================================================================
 540
 541 EVENT MESSAGES
 542
 543 =============================================================================
 544 */
 545
 546 /*
 547 ==================
 548 SV_StartParticle
 549
 550 Make sure the event gets sent to all clients
 551 ==================
 552 */
 553 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
 554 {
 555         int i;
 556
 557         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
 558                 return;
 559         MSG_WriteByte (&sv.datagram, svc_particle);
 560         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 561         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 562         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 563         for (i=0 ; i<3 ; i++)
 564                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
 565         MSG_WriteByte (&sv.datagram, count);
 566         MSG_WriteByte (&sv.datagram, color);
 567         SV_FlushBroadcastMessages();
 568 }
 569
 570 /*
 571 ==================
 572 SV_StartEffect
 573
 574 Make sure the event gets sent to all clients
 575 ==================
 576 */
 577 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 578 {
 579         if (modelindex >= 256 || startframe >= 256)
 580         {
 581                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 582                         return;
 583                 MSG_WriteByte (&sv.datagram, svc_effect2);
 584                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 585                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 586                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 587                 MSG_WriteShort (&sv.datagram, modelindex);
 588                 MSG_WriteShort (&sv.datagram, startframe);
 589                 MSG_WriteByte (&sv.datagram, framecount);
 590                 MSG_WriteByte (&sv.datagram, framerate);
 591         }
 592         else
 593         {
 594                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 595                         return;
 596                 MSG_WriteByte (&sv.datagram, svc_effect);
 597                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 598                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 599                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 600                 MSG_WriteByte (&sv.datagram, modelindex);
 601                 MSG_WriteByte (&sv.datagram, startframe);
 602                 MSG_WriteByte (&sv.datagram, framecount);
 603                 MSG_WriteByte (&sv.datagram, framerate);
 604         }
 605         SV_FlushBroadcastMessages();
 606 }
 607
 608 /*
 609 ==================
 610 SV_StartSound
 611
 612 Each entity can have eight independant sound sources, like voice,
 613 weapon, feet, etc.
 614
 615 Channel 0 is an auto-allocate channel, the others override anything
 616 already running on that entity/channel pair.
 617
 618 An attenuation of 0 will play full volume everywhere in the level.
 619 Larger attenuations will drop off.  (max 4 attenuation)
 620
 621 ==================
 622 */
 623 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
 624 {
 625         int sound_num, field_mask, i, ent;
 626
 627         if (volume < 0 || volume > 255)
 628         {
 629                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
 630                 return;
 631         }
 632
 633         if (attenuation < 0 || attenuation > 4)
 634         {
 635                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
 636                 return;
 637         }
 638
 639         if (channel < 0 || channel > 7)
 640         {
 641                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
 642                 return;
 643         }
 644
 645         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 646                 return;
 647
 648 // find precache number for sound
 649         sound_num = SV_SoundIndex(sample, 1);
 650         if (!sound_num)
 651                 return;
 652
 653         ent = PRVM_NUM_FOR_EDICT(entity);
 654
 655         field_mask = 0;
 656         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 657                 field_mask |= SND_VOLUME;
 658         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 659                 field_mask |= SND_ATTENUATION;
 660         if (ent >= 8192)
 661                 field_mask |= SND_LARGEENTITY;
 662         if (sound_num >= 256 || channel >= 8)
 663                 field_mask |= SND_LARGESOUND;
 664
 665 // directed messages go only to the entity they are targeted on
 666         MSG_WriteByte (&sv.datagram, svc_sound);
 667         MSG_WriteByte (&sv.datagram, field_mask);
 668         if (field_mask & SND_VOLUME)
 669                 MSG_WriteByte (&sv.datagram, volume);
 670         if (field_mask & SND_ATTENUATION)
 671                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 672         if (field_mask & SND_LARGEENTITY)
 673         {
 674                 MSG_WriteShort (&sv.datagram, ent);
 675                 MSG_WriteByte (&sv.datagram, channel);
 676         }
 677         else
 678                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 679         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
 680                 MSG_WriteShort (&sv.datagram, sound_num);
 681         else
 682                 MSG_WriteByte (&sv.datagram, sound_num);
 683         for (i = 0;i < 3;i++)
 684                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
 685         SV_FlushBroadcastMessages();
 686 }
 687
 688 /*
 689 ==================
 690 SV_StartPointSound
 691
 692 Nearly the same logic as SV_StartSound, except an origin
 693 instead of an entity is provided and channel is omitted.
 694
 695 The entity sent to the client is 0 (world) and the channel
 696 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
 697 function, therefore the check for it is omitted.
 698
 699 ==================
 700 */
 701 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
 702 {
 703         int sound_num, field_mask, i;
 704
 705         if (volume < 0 || volume > 255)
 706         {
 707                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
 708                 return;
 709         }
 710
 711         if (attenuation < 0 || attenuation > 4)
 712         {
 713                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
 714                 return;
 715         }
 716
 717         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 718                 return;
 719
 720         // find precache number for sound
 721         sound_num = SV_SoundIndex(sample, 1);
 722         if (!sound_num)
 723                 return;
 724
 725         field_mask = 0;
 726         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 727                 field_mask |= SND_VOLUME;
 728         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 729                 field_mask |= SND_ATTENUATION;
 730         if (sound_num >= 256)
 731                 field_mask |= SND_LARGESOUND;
 732
 733 // directed messages go only to the entity they are targeted on
 734         MSG_WriteByte (&sv.datagram, svc_sound);
 735         MSG_WriteByte (&sv.datagram, field_mask);
 736         if (field_mask & SND_VOLUME)
 737                 MSG_WriteByte (&sv.datagram, volume);
 738         if (field_mask & SND_ATTENUATION)
 739                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 740         // Always write entnum 0 for the world entity
 741         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
 742         if (field_mask & SND_LARGESOUND)
 743                 MSG_WriteShort (&sv.datagram, sound_num);
 744         else
 745                 MSG_WriteByte (&sv.datagram, sound_num);
 746         for (i = 0;i < 3;i++)
 747                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
 748         SV_FlushBroadcastMessages();
 749 }
 750
 751 /*
 752 ==============================================================================
 753
 754 CLIENT SPAWNING
 755
 756 ==============================================================================
 757 */
 758
 759 /*
 760 ================
 761 SV_SendServerinfo
 762
 763 Sends the first message from the server to a connected client.
 764 This will be sent on the initial connection and upon each server load.
 765 ================
 766 */
 767 void SV_SendServerinfo (client_t *client)
 768 {
 769         int i;
 770         char message[128];
 771
 772         // we know that this client has a netconnection and thus is not a bot
 773
 774         // edicts get reallocated on level changes, so we need to update it here
 775         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
 776
 777         // clear cached stuff that depends on the level
 778         client->weaponmodel[0] = 0;
 779         client->weaponmodelindex = 0;
 780
 781         // LordHavoc: clear entityframe tracking
 782         client->latestframenum = 0;
 783
 784         // initialize the movetime, so a speedhack can't make use of the time before this client joined
 785         client->cmd.time = sv.time;
 786
 787         if (client->entitydatabase)
 788                 EntityFrame_FreeDatabase(client->entitydatabase);
 789         if (client->entitydatabase4)
 790                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 791         if (client->entitydatabase5)
 792                 EntityFrame5_FreeDatabase(client->entitydatabase5);
 793
 794         memset(client->stats, 0, sizeof(client->stats));
 795         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
 796
 797         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)
 798         {
 799                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
 800                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
 801                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
 802                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
 803                 else
 804                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
 805         }
 806
 807         // reset csqc entity versions
 808         for (i = 0;i < prog->max_edicts;i++)
 809         {
 810                 client->csqcentityscope[i] = 0;
 811                 client->csqcentitysendflags[i] = 0xFFFFFF;
 812                 client->csqcentityglobalhistory[i] = 0;
 813         }
 814         for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
 815         {
 816                 client->csqcentityframehistory[i].num = 0;
 817                 client->csqcentityframehistory[i].framenum = -1;
 818         }
 819         client->csqcnumedicts = 0;
 820         client->csqcentityframehistory_next = 0;
 821
 822         SZ_Clear (&client->netconnection->message);
 823         MSG_WriteByte (&client->netconnection->message, svc_print);
 824         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
 825         MSG_WriteString (&client->netconnection->message,message);
 826
 827         SV_StopDemoRecording(client); // to split up demos into different files
 828         if(sv_autodemo_perclient.integer && client->netconnection)
 829         {
 830                 char demofile[MAX_OSPATH];
 831                 char levelname[MAX_QPATH];
 832                 char ipaddress[MAX_QPATH];
 833                 size_t i;
 834
 835                 // start a new demo file
 836                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
 837                 if (strrchr(levelname, '.'))
 838                         *(strrchr(levelname, '.')) = 0;
 839
 840                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
 841                 for(i = 0; ipaddress[i]; ++i)
 842                         if(!isalnum(ipaddress[i]))
 843                                 ipaddress[i] = '-';
 844                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
 845
 846                 SV_StartDemoRecording(client, demofile, -1);
 847         }
 848
 849         //[515]: init csprogs according to version of svprogs, check the crc, etc.
 850         if (sv.csqc_progname[0])
 851         {
 852                 prvm_eval_t *val;
 853                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
 854                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 855                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
 856                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 857                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
 858                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 859                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
 860
 861                 if(client->sv_demo_file != NULL)
 862                 {
 863                         int i;
 864                         char buf[NET_MAXMESSAGE];
 865                         sizebuf_t sb;
 866
 867                         sb.data = (unsigned char *) buf;
 868                         sb.maxsize = sizeof(buf);
 869                         i = 0;
 870                         while(MakeDownloadPacket(sv.csqc_progname, svs.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
 871                                 SV_WriteDemoMessage(client, &sb, false);
 872                 }
 873
 874                 //[515]: init stufftext string (it is sent before svc_serverinfo)
 875                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
 876                 if (val)
 877                 {
 878                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 879                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
 880                 }
 881         }
 882
 883         //if (sv_allowdownloads.integer)
 884         // always send the info that the server supports the protocol, even if downloads are forbidden
 885         // only because of that, the CSQC exception can work
 886         {
 887                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 888                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
 889         }
 890
 891         // send at this time so it's guaranteed to get executed at the right time
 892         {
 893                 client_t *save;
 894                 save = host_client;
 895                 host_client = client;
 896                 Curl_SendRequirements();
 897                 host_client = save;
 898         }
 899
 900         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
 901         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
 902         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
 903
 904         if (!coop.integer && deathmatch.integer)
 905                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
 906         else
 907                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
 908
 909         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
 910
 911         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
 912                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
 913         MSG_WriteByte (&client->netconnection->message, 0);
 914
 915         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
 916                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
 917         MSG_WriteByte (&client->netconnection->message, 0);
 918
 919 // send music
 920         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
 921         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 922         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 923
 924 // set view
 925 // store this in clientcamera, too
 926         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
 927         MSG_WriteByte (&client->netconnection->message, svc_setview);
 928         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
 929
 930         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
 931         MSG_WriteByte (&client->netconnection->message, 1);
 932
 933         client->spawned = false;                // need prespawn, spawn, etc
 934         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
 935
 936         // clear movement info until client enters the new level properly
 937         memset(&client->cmd, 0, sizeof(client->cmd));
 938         client->movesequence = 0;
 939 #ifdef NUM_PING_TIMES
 940         for (i = 0;i < NUM_PING_TIMES;i++)
 941                 client->ping_times[i] = 0;
 942         client->num_pings = 0;
 943 #endif
 944         client->ping = 0;
 945
 946         // allow the client some time to send his keepalives, even if map loading took ages
 947         client->netconnection->timeout = realtime + net_connecttimeout.value;
 948 }
 949
 950 /*
 951 ================
 952 SV_ConnectClient
 953
 954 Initializes a client_t for a new net connection.  This will only be called
 955 once for a player each game, not once for each level change.
 956 ================
 957 */
 958 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 959 {
 960         client_t                *client;
 961         int                             i;
 962         float                   spawn_parms[NUM_SPAWN_PARMS];
 963
 964         client = svs.clients + clientnum;
 965
 966 // set up the client_t
 967         if (sv.loadgame)
 968                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 969         memset (client, 0, sizeof(*client));
 970         client->active = true;
 971         client->netconnection = netconnection;
 972
 973         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
 974
 975         strlcpy(client->name, "unconnected", sizeof(client->name));
 976         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
 977         client->spawned = false;
 978         client->edict = PRVM_EDICT_NUM(clientnum+1);
 979         if (client->netconnection)
 980                 client->netconnection->message.allowoverflow = true;            // we can catch it
 981         // prepare the unreliable message buffer
 982         client->unreliablemsg.data = client->unreliablemsg_data;
 983         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
 984         // updated by receiving "rate" command from client, this is also the default if not using a DP client
 985         client->rate = 1000000000;
 986         // no limits for local player
 987         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
 988                 client->rate = 1000000000;
 989         client->connecttime = realtime;
 990
 991         if (sv.loadgame)
 992                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 993         else
 994         {
 995                 // call the progs to get default spawn parms for the new client
 996                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
 997                 prog->globals.server->self = 0;
 998                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
 999                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
1000                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
1001
1002                 // set up the entity for this client (including .colormap, .team, etc)
1003                 PRVM_ED_ClearEdict(client->edict);
1004         }
1005
1006         // don't call SendServerinfo for a fresh botclient because its fields have
1007         // not been set up by the qc yet
1008         if (client->netconnection)
1009                 SV_SendServerinfo (client);
1010         else
1011                 client->spawned = true;
1012 }
1013
1014
1015 /*
1016 ===============================================================================
1017
1018 FRAME UPDATES
1019
1020 ===============================================================================
1021 */
1022
1023 /*
1024 =============================================================================
1025
1026 The PVS must include a small area around the client to allow head bobbing
1027 or other small motion on the client side.  Otherwise, a bob might cause an
1028 entity that should be visible to not show up, especially when the bob
1029 crosses a waterline.
1030
1031 =============================================================================
1032 */
1033
1034 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
1035 {
1036         int i;
1037         unsigned int sendflags;
1038         unsigned int version;
1039         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
1040         unsigned int customizeentityforclient;
1041         unsigned int sendentity;
1042         float f;
1043         vec3_t cullmins, cullmaxs;
1044         dp_model_t *model;
1045         prvm_eval_t *val, *val2;
1046
1047         // fast path for games that do not use legacy entity networking
1048         // note: still networks clients even if they are legacy
1049         sendentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity)->function;
1050         if (sv_onlycsqcnetworking.integer && !sendentity && enumber > svs.maxclients)
1051                 return false;
1052
1053         // this 2 billion unit check is actually to detect NAN origins
1054         // (we really don't want to send those)
1055         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
1056                 return false;
1057
1058         // EF_NODRAW prevents sending for any reason except for your own
1059         // client, so we must keep all clients in this superset
1060         effects = (unsigned)ent->fields.server->effects;
1061
1062         // we can omit invisible entities with no effects that are not clients
1063         // LordHavoc: this could kill tags attached to an invisible entity, I
1064         // just hope we never have to support that case
1065         i = (int)ent->fields.server->modelindex;
1066         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model) && sv.models[i]) ? i : 0;
1067
1068         flags = 0;
1069         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
1070         glowsize = (unsigned char)bound(0, i, 255);
1071         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
1072                 flags |= RENDER_GLOWTRAIL;
1073         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
1074                 flags |= RENDER_VIEWMODEL;
1075
1076         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
1077         light[0] = (unsigned short)bound(0, f, 65535);
1078         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
1079         light[1] = (unsigned short)bound(0, f, 65535);
1080         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
1081         light[2] = (unsigned short)bound(0, f, 65535);
1082         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1083         light[3] = (unsigned short)bound(0, f, 65535);
1084         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1085         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1086
1087         if (gamemode == GAME_TENEBRAE)
1088         {
1089                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1090                 if (effects & 16)
1091                 {
1092                         effects &= ~16;
1093                         lightpflags |= PFLAGS_FULLDYNAMIC;
1094                 }
1095                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1096                 if (effects & 32)
1097                 {
1098                         effects &= ~32;
1099                         light[0] = (int)(0.2*256);
1100                         light[1] = (int)(1.0*256);
1101                         light[2] = (int)(0.2*256);
1102                         light[3] = 200;
1103                         lightpflags |= PFLAGS_FULLDYNAMIC;
1104                 }
1105         }
1106
1107         specialvisibilityradius = 0;
1108         if (lightpflags & PFLAGS_FULLDYNAMIC)
1109                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1110         if (glowsize)
1111                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1112         if (flags & RENDER_GLOWTRAIL)
1113                 specialvisibilityradius = max(specialvisibilityradius, 100);
1114         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1115         {
1116                 if (effects & EF_BRIGHTFIELD)
1117                         specialvisibilityradius = max(specialvisibilityradius, 80);
1118                 if (effects & EF_MUZZLEFLASH)
1119                         specialvisibilityradius = max(specialvisibilityradius, 100);
1120                 if (effects & EF_BRIGHTLIGHT)
1121                         specialvisibilityradius = max(specialvisibilityradius, 400);
1122                 if (effects & EF_DIMLIGHT)
1123                         specialvisibilityradius = max(specialvisibilityradius, 200);
1124                 if (effects & EF_RED)
1125                         specialvisibilityradius = max(specialvisibilityradius, 200);
1126                 if (effects & EF_BLUE)
1127                         specialvisibilityradius = max(specialvisibilityradius, 200);
1128                 if (effects & EF_FLAME)
1129                         specialvisibilityradius = max(specialvisibilityradius, 250);
1130                 if (effects & EF_STARDUST)
1131                         specialvisibilityradius = max(specialvisibilityradius, 100);
1132         }
1133
1134         // early culling checks
1135         // (final culling is done by SV_MarkWriteEntityStateToClient)
1136         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1137         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1138                 return false;
1139
1140         *cs = defaultstate;
1141         cs->active = ACTIVE_NETWORK;
1142         cs->number = enumber;
1143         VectorCopy(ent->fields.server->origin, cs->origin);
1144         VectorCopy(ent->fields.server->angles, cs->angles);
1145         cs->flags = flags;
1146         cs->effects = effects;
1147         cs->colormap = (unsigned)ent->fields.server->colormap;
1148         cs->modelindex = modelindex;
1149         cs->skin = (unsigned)ent->fields.server->skin;
1150         cs->frame = (unsigned)ent->fields.server->frame;
1151         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1152         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1153         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1154         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1155         cs->customizeentityforclient = customizeentityforclient;
1156         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1157         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1158         cs->glowsize = glowsize;
1159
1160         // don't need to init cs->colormod because the defaultstate did that for us
1161         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1162         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1163         if (val->vector[0] || val->vector[1] || val->vector[2])
1164         {
1165                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1166                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1167                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1168         }
1169
1170         // don't need to init cs->glowmod because the defaultstate did that for us
1171         //cs->glowmod[0] = cs->glowmod[1] = cs->glowmod[2] = 32;
1172         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glowmod);
1173         if (val->vector[0] || val->vector[1] || val->vector[2])
1174         {
1175                 i = (int)(val->vector[0] * 32.0f);cs->glowmod[0] = bound(0, i, 255);
1176                 i = (int)(val->vector[1] * 32.0f);cs->glowmod[1] = bound(0, i, 255);
1177                 i = (int)(val->vector[2] * 32.0f);cs->glowmod[2] = bound(0, i, 255);
1178         }
1179
1180         cs->modelindex = modelindex;
1181
1182         cs->alpha = 255;
1183         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1184         if (f)
1185         {
1186                 i = (int)f;
1187                 cs->alpha = (unsigned char)bound(0, i, 255);
1188         }
1189         // halflife
1190         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1191         if (f)
1192         {
1193                 i = (int)f;
1194                 cs->alpha = (unsigned char)bound(0, i, 255);
1195         }
1196
1197         cs->scale = 16;
1198         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1199         if (f)
1200         {
1201                 i = (int)f;
1202                 cs->scale = (unsigned char)bound(0, i, 255);
1203         }
1204
1205         cs->glowcolor = 254;
1206         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1207         if (f)
1208                 cs->glowcolor = (int)f;
1209
1210         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1211                 cs->effects |= EF_FULLBRIGHT;
1212
1213         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1214         if (val && val->_float)
1215                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1216
1217         if (ent->fields.server->movetype == MOVETYPE_STEP)
1218                 cs->flags |= RENDER_STEP;
1219         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)
1220                 cs->flags |= RENDER_LOWPRECISION;
1221         if (ent->fields.server->colormap >= 1024)
1222                 cs->flags |= RENDER_COLORMAPPED;
1223         if (cs->viewmodelforclient)
1224                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1225
1226         cs->light[0] = light[0];
1227         cs->light[1] = light[1];
1228         cs->light[2] = light[2];
1229         cs->light[3] = light[3];
1230         cs->lightstyle = lightstyle;
1231         cs->lightpflags = lightpflags;
1232
1233         cs->specialvisibilityradius = specialvisibilityradius;
1234
1235         // calculate the visible box of this entity (don't use the physics box
1236         // as that is often smaller than a model, and would not count
1237         // specialvisibilityradius)
1238         if ((model = SV_GetModelByIndex(modelindex)) && (model->type != mod_null))
1239         {
1240                 float scale = cs->scale * (1.0f / 16.0f);
1241                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1242                 {
1243                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1244                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1245                 }
1246                 else if (cs->angles[1] || ((effects | model->effects) & EF_ROTATE))
1247                 {
1248                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1249                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1250                 }
1251                 else
1252                 {
1253                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1254                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1255                 }
1256         }
1257         else
1258         {
1259                 // if there is no model (or it could not be loaded), use the physics box
1260                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1261                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1262         }
1263         if (specialvisibilityradius)
1264         {
1265                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1266                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1267                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1268                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1269                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1270                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1271         }
1272
1273         // calculate center of bbox for network prioritization purposes
1274         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1275
1276         // if culling box has moved, update pvs cluster links
1277         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1278         {
1279                 VectorCopy(cullmins, ent->priv.server->cullmins);
1280                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1281                 // a value of -1 for pvs_numclusters indicates that the links are not
1282                 // cached, and should be re-tested each time, this is the case if the
1283                 // culling box touches too many pvs clusters to store, or if the world
1284                 // model does not support FindBoxClusters
1285                 ent->priv.server->pvs_numclusters = -1;
1286                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1287                 {
1288                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1289                         if (i <= MAX_ENTITYCLUSTERS)
1290                                 ent->priv.server->pvs_numclusters = i;
1291                 }
1292         }
1293
1294         // we need to do some csqc entity upkeep here
1295         // get self.SendFlags and clear them
1296         // (to let the QC know that they've been read)
1297         if (sendentity)
1298         {
1299                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1300                 sendflags = (unsigned int)val->_float;
1301                 val->_float = 0;
1302                 // legacy self.Version system
1303                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1304                 if (val2->_float)
1305                 {
1306                         version = (unsigned int)val2->_float;
1307                         if (sv.csqcentityversion[enumber] != version)
1308                                 sendflags = 0xFFFFFF;
1309                         sv.csqcentityversion[enumber] = version;
1310                 }
1311                 // move sendflags into the per-client sendflags
1312                 if (sendflags)
1313                         for (i = 0;i < svs.maxclients;i++)
1314                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1315                 // mark it as inactive for non-csqc networking
1316                 cs->active = ACTIVE_SHARED;
1317         }
1318
1319         return true;
1320 }
1321
1322 void SV_PrepareEntitiesForSending(void)
1323 {
1324         int e;
1325         prvm_edict_t *ent;
1326         // send all entities that touch the pvs
1327         sv.numsendentities = 0;
1328         sv.sendentitiesindex[0] = NULL;
1329         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1330         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1331         {
1332                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1333                 {
1334                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1335                         sv.numsendentities++;
1336                 }
1337         }
1338 }
1339
1340 #define MAX_LINEOFSIGHTTRACES 64
1341
1342 qboolean SV_CanSeeBox(int numtraces, vec_t enlarge, vec3_t eye, vec3_t entboxmins, vec3_t entboxmaxs)
1343 {
1344         float pitchsign;
1345         float alpha;
1346         float starttransformed[3], endtransformed[3];
1347         int blocked = 0;
1348         int traceindex;
1349         int originalnumtouchedicts;
1350         int numtouchedicts = 0;
1351         int touchindex;
1352         matrix4x4_t matrix, imatrix;
1353         dp_model_t *model;
1354         prvm_edict_t *touch;
1355         prvm_edict_t *touchedicts[MAX_EDICTS];
1356         vec3_t boxmins, boxmaxs;
1357         vec3_t clipboxmins, clipboxmaxs;
1358         vec3_t endpoints[MAX_LINEOFSIGHTTRACES];
1359
1360         numtraces = min(numtraces, MAX_LINEOFSIGHTTRACES);
1361
1362         // expand the box a little
1363         boxmins[0] = (enlarge+1) * entboxmins[0] - enlarge * entboxmaxs[0];
1364         boxmaxs[0] = (enlarge+1) * entboxmaxs[0] - enlarge * entboxmins[0];
1365         boxmins[1] = (enlarge+1) * entboxmins[1] - enlarge * entboxmaxs[1];
1366         boxmaxs[1] = (enlarge+1) * entboxmaxs[1] - enlarge * entboxmins[1];
1367         boxmins[2] = (enlarge+1) * entboxmins[2] - enlarge * entboxmaxs[2];
1368         boxmaxs[2] = (enlarge+1) * entboxmaxs[2] - enlarge * entboxmins[2];
1369
1370         VectorMAM(0.5f, boxmins, 0.5f, boxmaxs, endpoints[0]);
1371         for (traceindex = 1;traceindex < numtraces;traceindex++)
1372                 VectorSet(endpoints[traceindex], lhrandom(boxmins[0], boxmaxs[0]), lhrandom(boxmins[1], boxmaxs[1]), lhrandom(boxmins[2], boxmaxs[2]));
1373
1374         // calculate sweep box for the entire swarm of traces
1375         VectorCopy(eye, clipboxmins);
1376         VectorCopy(eye, clipboxmaxs);
1377         for (traceindex = 0;traceindex < numtraces;traceindex++)
1378         {
1379                 clipboxmins[0] = min(clipboxmins[0], endpoints[traceindex][0]);
1380                 clipboxmins[1] = min(clipboxmins[1], endpoints[traceindex][1]);
1381                 clipboxmins[2] = min(clipboxmins[2], endpoints[traceindex][2]);
1382                 clipboxmaxs[0] = max(clipboxmaxs[0], endpoints[traceindex][0]);
1383                 clipboxmaxs[1] = max(clipboxmaxs[1], endpoints[traceindex][1]);
1384                 clipboxmaxs[2] = max(clipboxmaxs[2], endpoints[traceindex][2]);
1385         }
1386
1387         // get the list of entities in the sweep box
1388         if (sv_cullentities_trace_entityocclusion.integer)
1389                 numtouchedicts = World_EntitiesInBox(&sv.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
1390         if (numtouchedicts > MAX_EDICTS)
1391         {
1392                 // this never happens
1393                 Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
1394                 numtouchedicts = MAX_EDICTS;
1395         }
1396         // iterate the entities found in the sweep box and filter them
1397         originalnumtouchedicts = numtouchedicts;
1398         numtouchedicts = 0;
1399         for (touchindex = 0;touchindex < originalnumtouchedicts;touchindex++)
1400         {
1401                 touch = touchedicts[touchindex];
1402                 if (touch->fields.server->solid != SOLID_BSP)
1403                         continue;
1404                 model = SV_GetModelFromEdict(touch);
1405                 if (!model || !model->brush.TraceLineOfSight)
1406                         continue;
1407                 // skip obviously transparent entities
1408                 alpha = PRVM_EDICTFIELDVALUE(touch, prog->fieldoffsets.alpha)->_float;
1409                 if (alpha && alpha < 1)
1410                         continue;
1411                 if ((int)touch->fields.server->effects & EF_ADDITIVE)
1412                         continue;
1413                 touchedicts[numtouchedicts++] = touch;
1414         }
1415
1416         // now that we have a filtered list of "interesting" entities, fire each
1417         // ray against all of them, this gives us an early-out case when something
1418         // is visible (which it often is)
1419
1420         for (traceindex = 0;traceindex < numtraces;traceindex++)
1421         {
1422                 // check world occlusion
1423                 if (sv.worldmodel && sv.worldmodel->brush.TraceLineOfSight)
1424                         if (!sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, eye, endpoints[traceindex]))
1425                                 continue;
1426                 for (touchindex = 0;touchindex < numtouchedicts;touchindex++)
1427                 {
1428                         touch = touchedicts[touchindex];
1429                         model = SV_GetModelFromEdict(touch);
1430                         if(model && model->brush.TraceLineOfSight)
1431                         {
1432                                 // get the entity matrix
1433                                 pitchsign = SV_GetPitchSign(touch);
1434                                 Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2], pitchsign * touch->fields.server->angles[0], touch->fields.server->angles[1], touch->fields.server->angles[2], 1);
1435                                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
1436                                 // see if the ray hits this entity
1437                                 Matrix4x4_Transform(&imatrix, eye, starttransformed);
1438                                 Matrix4x4_Transform(&imatrix, endpoints[traceindex], endtransformed);
1439                                 if (!model->brush.TraceLineOfSight(model, starttransformed, endtransformed))
1440                                 {
1441                                         blocked++;
1442                                         break;
1443                                 }
1444                         }
1445                 }
1446                 // check if the ray was blocked
1447                 if (touchindex < numtouchedicts)
1448                         continue;
1449                 // return if the ray was not blocked
1450                 return true;
1451         }
1452
1453         // no rays survived
1454         return false;
1455 }
1456
1457 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1458 {
1459         int isbmodel;
1460         dp_model_t *model;
1461         prvm_edict_t *ed;
1462         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1463                 return;
1464         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1465         sv.writeentitiestoclient_stats_totalentities++;
1466
1467         if (s->customizeentityforclient)
1468         {
1469                 prog->globals.server->self = s->number;
1470                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1471                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1472                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1473                         return;
1474         }
1475
1476         // never reject player
1477         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1478         {
1479                 // check various rejection conditions
1480                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1481                         return;
1482                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1483                         return;
1484                 if (s->effects & EF_NODRAW)
1485                         return;
1486                 // LordHavoc: only send entities with a model or important effects
1487                 if (!s->modelindex && s->specialvisibilityradius == 0)
1488                         return;
1489
1490                 isbmodel = (model = SV_GetModelByIndex(s->modelindex)) != NULL && model->name[0] == '*';
1491                 // viewmodels don't have visibility checking
1492                 if (s->viewmodelforclient)
1493                 {
1494                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1495                                 return;
1496                 }
1497                 else if (s->tagentity)
1498                 {
1499                         // tag attached entities simply check their parent
1500                         if (!sv.sendentitiesindex[s->tagentity])
1501                                 return;
1502                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1503                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1504                                 return;
1505                 }
1506                 // always send world submodels in newer protocols because they don't
1507                 // generate much traffic (in old protocols they hog bandwidth)
1508                 // but only if sv_cullentities_nevercullbmodels is off
1509                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1510                 {
1511                         // entity has survived every check so far, check if visible
1512                         ed = PRVM_EDICT_NUM(s->number);
1513
1514                         // if not touching a visible leaf
1515                         if (sv_cullentities_pvs.integer && !r_novis.integer && sv.writeentitiestoclient_pvsbytes)
1516                         {
1517                                 if (ed->priv.server->pvs_numclusters < 0)
1518                                 {
1519                                         // entity too big for clusters list
1520                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1521                                         {
1522                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1523                                                 return;
1524                                         }
1525                                 }
1526                                 else
1527                                 {
1528                                         int i;
1529                                         // check cached clusters list
1530                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1531                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1532                                                         break;
1533                                         if (i == ed->priv.server->pvs_numclusters)
1534                                         {
1535                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1536                                                 return;
1537                                         }
1538                                 }
1539                         }
1540
1541                         // or not seen by random tracelines
1542                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1543                         {
1544                                 int samples =
1545                                         s->number <= svs.maxclients
1546                                                 ? sv_cullentities_trace_samples_players.integer
1547                                                 :
1548                                         s->specialvisibilityradius
1549                                                 ? sv_cullentities_trace_samples_extra.integer
1550                                                 : sv_cullentities_trace_samples.integer;
1551                                 float enlarge = sv_cullentities_trace_enlarge.value;
1552
1553                                 if(samples > 0)
1554                                 {
1555                                         int eyeindex;
1556                                         for (eyeindex = 0;eyeindex < sv.writeentitiestoclient_numeyes;eyeindex++)
1557                                                 if(SV_CanSeeBox(samples, enlarge, sv.writeentitiestoclient_eyes[eyeindex], ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1558                                                         break;
1559                                         if(eyeindex < sv.writeentitiestoclient_numeyes)
1560                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1561                                                         realtime + (
1562                                                                 s->number <= svs.maxclients
1563                                                                         ? sv_cullentities_trace_delay_players.value
1564                                                                         : sv_cullentities_trace_delay.value
1565                                                         );
1566                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1567                                         {
1568                                                 sv.writeentitiestoclient_stats_culled_trace++;
1569                                                 return;
1570                                         }
1571                                 }
1572                         }
1573                 }
1574         }
1575
1576         // this just marks it for sending
1577         // FIXME: it would be more efficient to send here, but the entity
1578         // compressor isn't that flexible
1579         sv.writeentitiestoclient_stats_visibleentities++;
1580         sv.sententities[s->number] = sv.sententitiesmark;
1581 }
1582
1583 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1584 {
1585         qboolean need_empty = false;
1586         int i, numsendstates, numcsqcsendstates;
1587         entity_state_t *s;
1588         prvm_edict_t *camera;
1589         qboolean success;
1590         vec3_t eye;
1591
1592         // if there isn't enough space to accomplish anything, skip it
1593         if (msg->cursize + 25 > maxsize)
1594                 return;
1595
1596         sv.writeentitiestoclient_msg = msg;
1597         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1598
1599         sv.writeentitiestoclient_stats_culled_pvs = 0;
1600         sv.writeentitiestoclient_stats_culled_trace = 0;
1601         sv.writeentitiestoclient_stats_visibleentities = 0;
1602         sv.writeentitiestoclient_stats_totalentities = 0;
1603         sv.writeentitiestoclient_numeyes = 0;
1604
1605         // get eye location
1606         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1607         camera = PRVM_EDICT_NUM( client->clientcamera );
1608         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, eye);
1609         sv.writeentitiestoclient_pvsbytes = 0;
1610         // get the PVS values for the eye location, later FatPVS calls will merge
1611         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1612                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, eye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), sv.writeentitiestoclient_pvsbytes != 0);
1613
1614         // add the eye to a list for SV_CanSeeBox tests
1615         VectorCopy(eye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1616         sv.writeentitiestoclient_numeyes++;
1617
1618         // calculate predicted eye origin for SV_CanSeeBox tests
1619         if (sv_cullentities_trace_prediction.integer)
1620         {
1621                 vec_t predtime = bound(0, host_client->ping, sv_cullentities_trace_prediction_time.value);
1622                 vec3_t predeye;
1623                 VectorMA(eye, predtime, camera->fields.server->velocity, predeye);
1624                 if (SV_CanSeeBox(1, 0, eye, predeye, predeye))
1625                 {
1626                         VectorCopy(predeye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1627                         sv.writeentitiestoclient_numeyes++;
1628                 }
1629                 //if (!sv.writeentitiestoclient_useprediction)
1630                 //      Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1631         }
1632
1633         // TODO: check line of sight to portal entities and add them to PVS
1634
1635         sv.sententitiesmark++;
1636
1637         for (i = 0;i < sv.numsendentities;i++)
1638                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1639
1640         numsendstates = 0;
1641         numcsqcsendstates = 0;
1642         for (i = 0;i < sv.numsendentities;i++)
1643         {
1644                 if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
1645                 {
1646                         if(sv.sendentities[i].active == ACTIVE_NETWORK)
1647                         {
1648                                 s = &sv.writeentitiestoclient_sendstates[numsendstates++];
1649                                 *s = sv.sendentities[i];
1650                                 if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1651                                         s->flags |= RENDER_EXTERIORMODEL;
1652                         }
1653                         else if(sv.sendentities[i].active == ACTIVE_SHARED)
1654                                 sv.writeentitiestoclient_csqcsendstates[numcsqcsendstates++] = sv.sendentities[i].number;
1655                         else
1656                                 Con_Printf("entity %d is in sv.sendentities and marked, but not active, please breakpoint me\n", sv.sendentities[i].number);
1657                 }
1658         }
1659
1660         if (sv_cullentities_stats.integer)
1661                 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);
1662
1663         if(client->entitydatabase5)
1664                 need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, client->entitydatabase5->latestframenum + 1);
1665         else
1666                 EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, 0);
1667
1668         if(client->num_skippedentityframes >= 10)
1669                 need_empty = true; // force every 10th frame to be not empty (or cl_movement replay takes too long)
1670
1671         if (client->entitydatabase5)
1672                 success = EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
1673         else if (client->entitydatabase4)
1674         {
1675                 success = EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1676                 Protocol_WriteStatsReliable();
1677         }
1678         else if (client->entitydatabase)
1679         {
1680                 success = EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1681                 Protocol_WriteStatsReliable();
1682         }
1683         else
1684         {
1685                 success = EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1686                 Protocol_WriteStatsReliable();
1687         }
1688
1689         if(success)
1690                 client->num_skippedentityframes = 0;
1691         else
1692                 ++client->num_skippedentityframes;
1693 }
1694
1695 /*
1696 =============
1697 SV_CleanupEnts
1698
1699 =============
1700 */
1701 static void SV_CleanupEnts (void)
1702 {
1703         int             e;
1704         prvm_edict_t    *ent;
1705
1706         ent = PRVM_NEXT_EDICT(prog->edicts);
1707         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1708                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1709 }
1710
1711 /*
1712 ==================
1713 SV_WriteClientdataToMessage
1714
1715 ==================
1716 */
1717 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1718 {
1719         int             bits;
1720         int             i;
1721         prvm_edict_t    *other;
1722         int             items;
1723         prvm_eval_t     *val;
1724         vec3_t  punchvector;
1725         int             viewzoom;
1726         const char *s;
1727         float   *statsf = (float *)stats;
1728
1729 //
1730 // send a damage message
1731 //
1732         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1733         {
1734                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1735                 MSG_WriteByte (msg, svc_damage);
1736                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1737                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1738                 for (i=0 ; i<3 ; i++)
1739                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1740
1741                 ent->fields.server->dmg_take = 0;
1742                 ent->fields.server->dmg_save = 0;
1743         }
1744
1745 //
1746 // send the current viewpos offset from the view entity
1747 //
1748         SV_SetIdealPitch ();            // how much to look up / down ideally
1749
1750 // a fixangle might get lost in a dropped packet.  Oh well.
1751         if(ent->fields.server->fixangle)
1752         {
1753                 // angle fixing was requested by global thinking code...
1754                 // so store the current angles for later use
1755                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1756                 host_client->fixangle_angles_set = TRUE;
1757
1758                 // and clear fixangle for the next frame
1759                 ent->fields.server->fixangle = 0;
1760         }
1761
1762         if (host_client->fixangle_angles_set)
1763         {
1764                 MSG_WriteByte (msg, svc_setangle);
1765                 for (i=0 ; i < 3 ; i++)
1766                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1767                 host_client->fixangle_angles_set = FALSE;
1768         }
1769
1770         // stuff the sigil bits into the high bits of items for sbar, or else
1771         // mix in items2
1772         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1773         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1774                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1775         else
1776                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1777
1778         VectorClear(punchvector);
1779         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1780                 VectorCopy(val->vector, punchvector);
1781
1782         // cache weapon model name and index in client struct to save time
1783         // (this search can be almost 1% of cpu time!)
1784         s = PRVM_GetString(ent->fields.server->weaponmodel);
1785         if (strcmp(s, client->weaponmodel))
1786         {
1787                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1788                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1789         }
1790
1791         viewzoom = 255;
1792         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1793                 viewzoom = (int)(val->_float * 255.0f);
1794         if (viewzoom == 0)
1795                 viewzoom = 255;
1796
1797         bits = 0;
1798
1799         if ((int)ent->fields.server->flags & FL_ONGROUND)
1800                 bits |= SU_ONGROUND;
1801         if (ent->fields.server->waterlevel >= 2)
1802                 bits |= SU_INWATER;
1803         if (ent->fields.server->idealpitch)
1804                 bits |= SU_IDEALPITCH;
1805
1806         for (i=0 ; i<3 ; i++)
1807         {
1808                 if (ent->fields.server->punchangle[i])
1809                         bits |= (SU_PUNCH1<<i);
1810                 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)
1811                         if (punchvector[i])
1812                                 bits |= (SU_PUNCHVEC1<<i);
1813                 if (ent->fields.server->velocity[i])
1814                         bits |= (SU_VELOCITY1<<i);
1815         }
1816
1817         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1818         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1819         stats[STAT_ITEMS] = items;
1820         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1821         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1822         stats[STAT_WEAPON] = client->weaponmodelindex;
1823         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1824         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1825         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1826         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1827         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1828         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1829         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1830         stats[STAT_VIEWZOOM] = viewzoom;
1831         stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
1832         stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
1833         // the QC bumps these itself by sending svc_'s, so we have to keep them
1834         // zero or they'll be corrected by the engine
1835         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1836         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1837
1838         // movement settings for prediction
1839         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1840         stats[STAT_MOVEFLAGS] = MOVEFLAG_VALID
1841                 | (sv_gameplayfix_q2airaccelerate.integer ? MOVEFLAG_Q2AIRACCELERATE : 0)
1842         ;
1843         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1844         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1845         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1846         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1847         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1848         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1849         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1850         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1851         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1852         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1853         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1854         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1855         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1856         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1857         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1858         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1859         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1860         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1861         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1862         statsf[STAT_MOVEVARS_AIRSTOPACCELERATE] = sv_airstopaccelerate.value;
1863         statsf[STAT_MOVEVARS_AIRSTRAFEACCELERATE] = sv_airstrafeaccelerate.value;
1864         statsf[STAT_MOVEVARS_MAXAIRSTRAFESPEED] = sv_maxairstrafespeed.value;
1865         statsf[STAT_MOVEVARS_AIRCONTROL] = sv_aircontrol.value;
1866         statsf[STAT_MOVEVARS_WARSOWBUNNY_AIRFORWARDACCEL] = sv_warsowbunny_airforwardaccel.value;
1867         statsf[STAT_MOVEVARS_WARSOWBUNNY_ACCEL] = sv_warsowbunny_accel.value;
1868         statsf[STAT_MOVEVARS_WARSOWBUNNY_TOPSPEED] = sv_warsowbunny_topspeed.value;
1869         statsf[STAT_MOVEVARS_WARSOWBUNNY_TURNACCEL] = sv_warsowbunny_turnaccel.value;
1870         statsf[STAT_MOVEVARS_WARSOWBUNNY_BACKTOSIDERATIO] = sv_warsowbunny_backtosideratio.value;
1871         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1872         statsf[STAT_TIMELIMIT] = timelimit.value;
1873
1874         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)
1875         {
1876                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1877                 bits |= SU_ITEMS;
1878                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1879                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1880                 bits |= SU_WEAPON;
1881                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1882                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1883                         if (viewzoom != 255)
1884                                 bits |= SU_VIEWZOOM;
1885         }
1886
1887         if (bits >= 65536)
1888                 bits |= SU_EXTEND1;
1889         if (bits >= 16777216)
1890                 bits |= SU_EXTEND2;
1891
1892         // send the data
1893         MSG_WriteByte (msg, svc_clientdata);
1894         MSG_WriteShort (msg, bits);
1895         if (bits & SU_EXTEND1)
1896                 MSG_WriteByte(msg, bits >> 16);
1897         if (bits & SU_EXTEND2)
1898                 MSG_WriteByte(msg, bits >> 24);
1899
1900         if (bits & SU_VIEWHEIGHT)
1901                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1902
1903         if (bits & SU_IDEALPITCH)
1904                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1905
1906         for (i=0 ; i<3 ; i++)
1907         {
1908                 if (bits & (SU_PUNCH1<<i))
1909                 {
1910                         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)
1911                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1912                         else
1913                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1914                 }
1915                 if (bits & (SU_PUNCHVEC1<<i))
1916                 {
1917                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1918                                 MSG_WriteCoord16i(msg, punchvector[i]);
1919                         else
1920                                 MSG_WriteCoord32f(msg, punchvector[i]);
1921                 }
1922                 if (bits & (SU_VELOCITY1<<i))
1923                 {
1924                         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)
1925                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1926                         else
1927                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1928                 }
1929         }
1930
1931         if (bits & SU_ITEMS)
1932                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1933
1934         if (sv.protocol == PROTOCOL_DARKPLACES5)
1935         {
1936                 if (bits & SU_WEAPONFRAME)
1937                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1938                 if (bits & SU_ARMOR)
1939                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1940                 if (bits & SU_WEAPON)
1941                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1942                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1943                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1944                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1945                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1946                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1947                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1948                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1949                 if (bits & SU_VIEWZOOM)
1950                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1951         }
1952         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)
1953         {
1954                 if (bits & SU_WEAPONFRAME)
1955                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1956                 if (bits & SU_ARMOR)
1957                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1958                 if (bits & SU_WEAPON)
1959                 {
1960                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1961                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
1962                         else
1963                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
1964                 }
1965                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1966                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1967                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1968                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1969                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1970                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1971                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1972                 {
1973                         for (i = 0;i < 32;i++)
1974                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1975                                         break;
1976                         MSG_WriteByte (msg, i);
1977                 }
1978                 else
1979                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1980                 if (bits & SU_VIEWZOOM)
1981                 {
1982                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1983                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1984                         else
1985                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1986                 }
1987         }
1988 }
1989
1990 void SV_FlushBroadcastMessages(void)
1991 {
1992         int i;
1993         client_t *client;
1994         if (sv.datagram.cursize <= 0)
1995                 return;
1996         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1997         {
1998                 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])))
1999                         continue;
2000                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
2001                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
2002         }
2003         SZ_Clear(&sv.datagram);
2004 }
2005
2006 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize, int maxsize2)
2007 {
2008         // scan the splitpoints to find out how many we can fit in
2009         int numsegments, j, split;
2010         if (!client->unreliablemsg_splitpoints)
2011                 return;
2012         // always accept the first one if it's within 1024 bytes, this ensures
2013         // that very big datagrams which are over the rate limit still get
2014         // through, just to keep it working
2015         for (numsegments = 1;numsegments < client->unreliablemsg_splitpoints;numsegments++)
2016                 if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
2017                         break;
2018         // the first segment gets an exemption from the rate limiting, otherwise
2019         // it could get dropped consistently due to a low rate limit
2020         if (numsegments == 1)
2021                 maxsize = maxsize2;
2022         // some will fit, so add the ones that will fit
2023         split = client->unreliablemsg_splitpoint[numsegments-1];
2024         // note this discards ones that were accepted by the segments scan but
2025         // can not fit, such as a really huge first one that will never ever
2026         // fit in a packet...
2027         if (msg->cursize + split <= maxsize)
2028                 SZ_Write(msg, client->unreliablemsg.data, split);
2029         // remove the part we sent, keeping any remaining data
2030         client->unreliablemsg.cursize -= split;
2031         if (client->unreliablemsg.cursize > 0)
2032                 memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
2033         // adjust remaining splitpoints
2034         client->unreliablemsg_splitpoints -= numsegments;
2035         for (j = 0;j < client->unreliablemsg_splitpoints;j++)
2036                 client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
2037 }
2038
2039 /*
2040 =======================
2041 SV_SendClientDatagram
2042 =======================
2043 */
2044 static void SV_SendClientDatagram (client_t *client)
2045 {
2046         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
2047         sizebuf_t msg;
2048         int stats[MAX_CL_STATS];
2049         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
2050
2051         // obey rate limit by limiting packet frequency if the packet size
2052         // limiting fails
2053         // (usually this is caused by reliable messages)
2054         if (!NetConn_CanSend(client->netconnection))
2055                 return;
2056
2057         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
2058         maxrate = max(NET_MINRATE, sv_maxrate.integer);
2059         if (sv_maxrate.integer != maxrate)
2060                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
2061
2062         // clientrate determines the 'cleartime' of a packet
2063         // (how long to wait before sending another, based on this packet's size)
2064         clientrate = bound(NET_MINRATE, client->rate, maxrate);
2065
2066         switch (sv.protocol)
2067         {
2068         case PROTOCOL_QUAKE:
2069         case PROTOCOL_QUAKEDP:
2070         case PROTOCOL_NEHAHRAMOVIE:
2071         case PROTOCOL_NEHAHRABJP:
2072         case PROTOCOL_NEHAHRABJP2:
2073         case PROTOCOL_NEHAHRABJP3:
2074         case PROTOCOL_QUAKEWORLD:
2075                 // no packet size limit support on Quake protocols because it just
2076                 // causes missing entities/effects
2077                 // packets are simply sent less often to obey the rate limit
2078                 maxsize = 1024;
2079                 maxsize2 = 1024;
2080                 break;
2081         case PROTOCOL_DARKPLACES1:
2082         case PROTOCOL_DARKPLACES2:
2083         case PROTOCOL_DARKPLACES3:
2084         case PROTOCOL_DARKPLACES4:
2085                 // no packet size limit support on DP1-4 protocols because they kick
2086                 // the client off if they overflow, and miss effects
2087                 // packets are simply sent less often to obey the rate limit
2088                 maxsize = sizeof(sv_sendclientdatagram_buf);
2089                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
2090                 break;
2091         default:
2092                 // DP5 and later protocols support packet size limiting which is a
2093                 // better method than limiting packet frequency as QW does
2094                 //
2095                 // at very low rates (or very small sys_ticrate) the packet size is
2096                 // not reduced below 128, but packets may be sent less often
2097                 maxsize = (int)(clientrate * sys_ticrate.value);
2098                 maxsize = bound(128, maxsize, 1400);
2099                 maxsize2 = 1400;
2100                 // csqc entities can easily exceed 128 bytes, so disable throttling in
2101                 // mods that use csqc (they are likely to use less bandwidth anyway)
2102                 if (sv.csqc_progsize > 0)
2103                         maxsize = maxsize2;
2104                 break;
2105         }
2106
2107         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
2108         {
2109                 // for good singleplayer, send huge packets
2110                 maxsize = sizeof(sv_sendclientdatagram_buf);
2111                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
2112                 // never limit frequency in singleplayer
2113                 clientrate = 1000000000;
2114         }
2115
2116         // while downloading, limit entity updates to half the packet
2117         // (any leftover space will be used for downloading)
2118         if (host_client->download_file)
2119                 maxsize /= 2;
2120
2121         msg.data = sv_sendclientdatagram_buf;
2122         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
2123         msg.cursize = 0;
2124         msg.allowoverflow = false;
2125
2126         if (host_client->spawned)
2127         {
2128                 // the player is in the game
2129                 MSG_WriteByte (&msg, svc_time);
2130                 MSG_WriteFloat (&msg, sv.time);
2131
2132                 // add the client specific data to the datagram
2133                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
2134                 // now update the stats[] array using any registered custom fields
2135                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
2136                 // set host_client->statsdeltabits
2137                 Protocol_UpdateClientStats (stats);
2138
2139                 // add as many queued unreliable messages (effects) as we can fit
2140                 // limit effects to half of the remaining space
2141                 if (client->unreliablemsg.cursize)
2142                         SV_WriteUnreliableMessages (client, &msg, maxsize/2, maxsize2);
2143
2144                 // now write as many entities as we can fit, and also sends stats
2145                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
2146         }
2147         else if (realtime > client->keepalivetime)
2148         {
2149                 // the player isn't totally in the game yet
2150                 // send small keepalive messages if too much time has passed
2151                 // (may also be sending downloads)
2152                 client->keepalivetime = realtime + 5;
2153                 MSG_WriteChar (&msg, svc_nop);
2154         }
2155
2156         // if a download is active, see if there is room to fit some download data
2157         // in this packet
2158         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
2159         if (host_client->download_file && host_client->download_started && downloadsize > 0)
2160         {
2161                 fs_offset_t downloadstart;
2162                 unsigned char data[1400];
2163                 downloadstart = FS_Tell(host_client->download_file);
2164                 downloadsize = min(downloadsize, (int)sizeof(data));
2165                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
2166                 // note this sends empty messages if at the end of the file, which is
2167                 // necessary to keep the packet loss logic working
2168                 // (the last blocks may be lost and need to be re-sent, and that will
2169                 //  only occur if the client acks the empty end messages, revealing
2170                 //  a gap in the download progress, causing the last blocks to be
2171                 //  sent again)
2172                 MSG_WriteChar (&msg, svc_downloaddata);
2173                 MSG_WriteLong (&msg, downloadstart);
2174                 MSG_WriteShort (&msg, downloadsize);
2175                 if (downloadsize > 0)
2176                         SZ_Write (&msg, data, downloadsize);
2177         }
2178
2179         // reliable only if none is in progress
2180         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
2181                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
2182         // unreliable
2183         SV_WriteDemoMessage(client, &msg, false);
2184
2185 // send the datagram
2186         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
2187         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
2188                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
2189 }
2190
2191 /*
2192 =======================
2193 SV_UpdateToReliableMessages
2194 =======================
2195 */
2196 static void SV_UpdateToReliableMessages (void)
2197 {
2198         int i, j;
2199         client_t *client;
2200         prvm_eval_t *val;
2201         const char *name;
2202         const char *model;
2203         const char *skin;
2204
2205 // check for changes to be sent over the reliable streams
2206         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2207         {
2208                 // update the host_client fields we care about according to the entity fields
2209                 host_client->edict = PRVM_EDICT_NUM(i+1);
2210
2211                 // DP_SV_CLIENTNAME
2212                 name = PRVM_GetString(host_client->edict->fields.server->netname);
2213                 if (name == NULL)
2214                         name = "";
2215                 // always point the string back at host_client->name to keep it safe
2216                 strlcpy (host_client->name, name, sizeof (host_client->name));
2217                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
2218                 if (strcmp(host_client->old_name, host_client->name))
2219                 {
2220                         if (host_client->spawned)
2221                                 SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
2222                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
2223                         // send notification to all clients
2224                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
2225                         MSG_WriteByte (&sv.reliable_datagram, i);
2226                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
2227                         SV_WriteNetnameIntoDemo(host_client);
2228                 }
2229
2230                 // DP_SV_CLIENTCOLORS
2231                 // this is always found (since it's added by the progs loader)
2232                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2233                         host_client->colors = (int)val->_float;
2234                 if (host_client->old_colors != host_client->colors)
2235                 {
2236                         host_client->old_colors = host_client->colors;
2237                         // send notification to all clients
2238                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2239                         MSG_WriteByte (&sv.reliable_datagram, i);
2240                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2241                 }
2242
2243                 // NEXUIZ_PLAYERMODEL
2244                 if( prog->fieldoffsets.playermodel >= 0 ) {
2245                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2246                         if (model == NULL)
2247                                 model = "";
2248                         // always point the string back at host_client->name to keep it safe
2249                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2250                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2251                 }
2252
2253                 // NEXUIZ_PLAYERSKIN
2254                 if( prog->fieldoffsets.playerskin >= 0 ) {
2255                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2256                         if (skin == NULL)
2257                                 skin = "";
2258                         // always point the string back at host_client->name to keep it safe
2259                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2260                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2261                 }
2262
2263                 // TODO: add an extension name for this [1/17/2008 Black]
2264                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2265                         int oldclientcamera = host_client->clientcamera;
2266                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2267                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2268                         } else {
2269                                 host_client->clientcamera = val->edict;
2270                         }
2271
2272                         if( oldclientcamera != host_client->clientcamera ) {
2273                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
2274                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2275                         }
2276                 }
2277
2278                 // frags
2279                 host_client->frags = (int)host_client->edict->fields.server->frags;
2280                 if(gamemode == GAME_NEXUIZ)
2281                         if(!host_client->spawned && host_client->netconnection)
2282                                 host_client->frags = -666;
2283                 if (host_client->old_frags != host_client->frags)
2284                 {
2285                         host_client->old_frags = host_client->frags;
2286                         // send notification to all clients
2287                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2288                         MSG_WriteByte (&sv.reliable_datagram, i);
2289                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2290                 }
2291         }
2292
2293         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2294                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2295                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2296
2297         SZ_Clear (&sv.reliable_datagram);
2298 }
2299
2300
2301 /*
2302 =======================
2303 SV_SendClientMessages
2304 =======================
2305 */
2306 void SV_SendClientMessages (void)
2307 {
2308         int i, prepared = false;
2309
2310         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2311                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2312
2313         SV_FlushBroadcastMessages();
2314
2315 // update frags, names, etc
2316         SV_UpdateToReliableMessages();
2317
2318 // build individual updates
2319         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2320         {
2321                 if (!host_client->active)
2322                         continue;
2323                 if (!host_client->netconnection)
2324                         continue;
2325
2326                 if (host_client->netconnection->message.overflowed)
2327                 {
2328                         SV_DropClient (true);   // if the message couldn't send, kick off
2329                         continue;
2330                 }
2331
2332                 if (!prepared)
2333                 {
2334                         prepared = true;
2335                         // only prepare entities once per frame
2336                         SV_PrepareEntitiesForSending();
2337                 }
2338                 SV_SendClientDatagram (host_client);
2339         }
2340
2341 // clear muzzle flashes
2342         SV_CleanupEnts();
2343 }
2344
2345 static void SV_StartDownload_f(void)
2346 {
2347         if (host_client->download_file)
2348                 host_client->download_started = true;
2349 }
2350
2351 /*
2352  * Compression extension negotiation:
2353  *
2354  * Server to client:
2355  *   cl_serverextension_download 2
2356  *
2357  * Client to server:
2358  *   download <filename> <list of zero or more suppported compressions in order of preference>
2359  * e.g.
2360  *   download maps/map1.bsp lzo deflate huffman
2361  *
2362  * Server to client:
2363  *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
2364  * e.g.
2365  *   cl_downloadbegin 123456 maps/map1.bsp deflate
2366  *
2367  * The server may choose not to compress the file by sending no compression name, like:
2368  *   cl_downloadbegin 345678 maps/map1.bsp
2369  *
2370  * NOTE: the "download" command may only specify compression algorithms if
2371  *       cl_serverextension_download is 2!
2372  *       If cl_serverextension_download has a different value, the client must
2373  *       assume this extension is not supported!
2374  */
2375
2376 static void Download_CheckExtensions(void)
2377 {
2378         int i;
2379         int argc = Cmd_Argc();
2380
2381         // first reset them all
2382         host_client->download_deflate = false;
2383
2384         for(i = 2; i < argc; ++i)
2385         {
2386                 if(!strcmp(Cmd_Argv(i), "deflate"))
2387                 {
2388                         host_client->download_deflate = true;
2389                         break;
2390                 }
2391         }
2392 }
2393
2394 static void SV_Download_f(void)
2395 {
2396         const char *whichpack, *whichpack2, *extension;
2397         qboolean is_csqc; // so we need to check only once
2398
2399         if (Cmd_Argc() < 2)
2400         {
2401                 SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
2402                 SV_ClientPrintf("       supported extensions: deflate\n");
2403                 return;
2404         }
2405
2406         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2407         {
2408                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2409                 return;
2410         }
2411
2412         if (host_client->download_file)
2413         {
2414                 // at this point we'll assume the previous download should be aborted
2415                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2416                 Host_ClientCommands("\nstopdownload\n");
2417
2418                 // close the file and reset variables
2419                 FS_Close(host_client->download_file);
2420                 host_client->download_file = NULL;
2421                 host_client->download_name[0] = 0;
2422                 host_client->download_expectedposition = 0;
2423                 host_client->download_started = false;
2424         }
2425
2426         is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
2427
2428         if (!sv_allowdownloads.integer && !is_csqc)
2429         {
2430                 SV_ClientPrintf("Downloads are disabled on this server\n");
2431                 Host_ClientCommands("\nstopdownload\n");
2432                 return;
2433         }
2434
2435         Download_CheckExtensions();
2436
2437         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2438         extension = FS_FileExtension(host_client->download_name);
2439
2440         // host_client is asking to download a specified file
2441         if (developer.integer >= 100)
2442                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2443
2444         if(is_csqc)
2445         {
2446                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2447                 extensions[0] = '\0';
2448
2449                 if(host_client->download_deflate)
2450                         strlcat(extensions, " deflate", sizeof(extensions));
2451
2452                 Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2453
2454                 if(host_client->download_deflate && svs.csqc_progdata_deflated)
2455                         host_client->download_file = FS_FileFromData(svs.csqc_progdata_deflated, svs.csqc_progsize_deflated, true);
2456                 else
2457                         host_client->download_file = FS_FileFromData(svs.csqc_progdata, sv.csqc_progsize, true);
2458
2459                 // no, no space is needed between %s and %s :P
2460                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2461
2462                 host_client->download_expectedposition = 0;
2463                 host_client->download_started = false;
2464                 host_client->sendsignon = true; // make sure this message is sent
2465                 return;
2466         }
2467
2468         if (!FS_FileExists(host_client->download_name))
2469         {
2470                 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);
2471                 Host_ClientCommands("\nstopdownload\n");
2472                 return;
2473         }
2474
2475         // check if the user is trying to download part of registered Quake(r)
2476         whichpack = FS_WhichPack(host_client->download_name);
2477         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2478         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2479         {
2480                 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);
2481                 Host_ClientCommands("\nstopdownload\n");
2482                 return;
2483         }
2484
2485         // check if the server has forbidden archive downloads entirely
2486         if (!sv_allowdownloads_inarchive.integer)
2487         {
2488                 whichpack = FS_WhichPack(host_client->download_name);
2489                 if (whichpack)
2490                 {
2491                         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);
2492                         Host_ClientCommands("\nstopdownload\n");
2493                         return;
2494                 }
2495         }
2496
2497         if (!sv_allowdownloads_config.integer)
2498         {
2499                 if (!strcasecmp(extension, "cfg"))
2500                 {
2501                         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);
2502                         Host_ClientCommands("\nstopdownload\n");
2503                         return;
2504                 }
2505         }
2506
2507         if (!sv_allowdownloads_dlcache.integer)
2508         {
2509                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2510                 {
2511                         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);
2512                         Host_ClientCommands("\nstopdownload\n");
2513                         return;
2514                 }
2515         }
2516
2517         if (!sv_allowdownloads_archive.integer)
2518         {
2519                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2520                 {
2521                         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);
2522                         Host_ClientCommands("\nstopdownload\n");
2523                         return;
2524                 }
2525         }
2526
2527         host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
2528         if (!host_client->download_file)
2529         {
2530                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2531                 Host_ClientCommands("\nstopdownload\n");
2532                 return;
2533         }
2534
2535         if (FS_FileSize(host_client->download_file) > 1<<30)
2536         {
2537                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2538                 Host_ClientCommands("\nstopdownload\n");
2539                 FS_Close(host_client->download_file);
2540                 host_client->download_file = NULL;
2541                 return;
2542         }
2543
2544         if (FS_FileSize(host_client->download_file) < 0)
2545         {
2546                 SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
2547                 Host_ClientCommands("\nstopdownload\n");
2548                 FS_Close(host_client->download_file);
2549                 host_client->download_file = NULL;
2550                 return;
2551         }
2552
2553         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2554
2555         /*
2556          * we can only do this if we would actually deflate on the fly
2557          * which we do not (yet)!
2558         {
2559                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2560                 extensions[0] = '\0';
2561
2562                 if(host_client->download_deflate)
2563                         strlcat(extensions, " deflate", sizeof(extensions));
2564
2565                 // no, no space is needed between %s and %s :P
2566                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2567         }
2568         */
2569         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2570
2571         host_client->download_expectedposition = 0;
2572         host_client->download_started = false;
2573         host_client->sendsignon = true; // make sure this message is sent
2574
2575         // the rest of the download process is handled in SV_SendClientDatagram
2576         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2577         //
2578         // no svc_downloaddata messages will be sent until sv_startdownload is
2579         // sent by the client
2580 }
2581
2582 /*
2583 ==============================================================================
2584
2585 SERVER SPAWNING
2586
2587 ==============================================================================
2588 */
2589
2590 /*
2591 ================
2592 SV_ModelIndex
2593
2594 ================
2595 */
2596 int SV_ModelIndex(const char *s, int precachemode)
2597 {
2598         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);
2599         char filename[MAX_QPATH];
2600         if (!s || !*s)
2601                 return 0;
2602         // testing
2603         //if (precachemode == 2)
2604         //      return 0;
2605         strlcpy(filename, s, sizeof(filename));
2606         for (i = 2;i < limit;i++)
2607         {
2608                 if (!sv.model_precache[i][0])
2609                 {
2610                         if (precachemode)
2611                         {
2612                                 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))
2613                                 {
2614                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2615                                         return 0;
2616                                 }
2617                                 if (precachemode == 1)
2618                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2619                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2620                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, s[0] == '*' ? sv.modelname : NULL);
2621                                 if (sv.state != ss_loading)
2622                                 {
2623                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2624                                         MSG_WriteShort(&sv.reliable_datagram, i);
2625                                         MSG_WriteString(&sv.reliable_datagram, filename);
2626                                 }
2627                                 return i;
2628                         }
2629                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2630                         return 0;
2631                 }
2632                 if (!strcmp(sv.model_precache[i], filename))
2633                         return i;
2634         }
2635         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2636         return 0;
2637 }
2638
2639 /*
2640 ================
2641 SV_SoundIndex
2642
2643 ================
2644 */
2645 int SV_SoundIndex(const char *s, int precachemode)
2646 {
2647         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);
2648         char filename[MAX_QPATH];
2649         if (!s || !*s)
2650                 return 0;
2651         // testing
2652         //if (precachemode == 2)
2653         //      return 0;
2654         strlcpy(filename, s, sizeof(filename));
2655         for (i = 1;i < limit;i++)
2656         {
2657                 if (!sv.sound_precache[i][0])
2658                 {
2659                         if (precachemode)
2660                         {
2661                                 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))
2662                                 {
2663                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2664                                         return 0;
2665                                 }
2666                                 if (precachemode == 1)
2667                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2668                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2669                                 if (sv.state != ss_loading)
2670                                 {
2671                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2672                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2673                                         MSG_WriteString(&sv.reliable_datagram, filename);
2674                                 }
2675                                 return i;
2676                         }
2677                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2678                         return 0;
2679                 }
2680                 if (!strcmp(sv.sound_precache[i], filename))
2681                         return i;
2682         }
2683         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2684         return 0;
2685 }
2686
2687 /*
2688 ================
2689 SV_ParticleEffectIndex
2690
2691 ================
2692 */
2693 int SV_ParticleEffectIndex(const char *name)
2694 {
2695         int i, argc, linenumber, effectnameindex;
2696         fs_offset_t filesize;
2697         unsigned char *filedata;
2698         const char *text, *textstart, *textend;
2699         char argv[16][1024];
2700         if (!sv.particleeffectnamesloaded)
2701         {
2702                 sv.particleeffectnamesloaded = true;
2703                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2704                 for (i = 0;i < EFFECT_TOTAL;i++)
2705                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2706                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2707                 if (filedata)
2708                 {
2709                         textstart = (const char *)filedata;
2710                         textend = (const char *)filedata + filesize;
2711                         text = textstart;
2712                         for (linenumber = 1;;linenumber++)
2713                         {
2714                                 argc = 0;
2715                                 for (;;)
2716                                 {
2717                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2718                                                 break;
2719                                         if (argc < 16)
2720                                         {
2721                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2722                                                 argc++;
2723                                         }
2724                                 }
2725                                 if (com_token[0] == 0)
2726                                         break; // if the loop exited and it's not a \n, it's EOF
2727                                 if (argc < 1)
2728                                         continue;
2729                                 if (!strcmp(argv[0], "effect"))
2730                                 {
2731                                         if (argc == 2)
2732                                         {
2733                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2734                                                 {
2735                                                         if (sv.particleeffectname[effectnameindex][0])
2736                                                         {
2737                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2738                                                                         break;
2739                                                         }
2740                                                         else
2741                                                         {
2742                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2743                                                                 break;
2744                                                         }
2745                                                 }
2746                                                 // if we run out of names, abort
2747                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2748                                                 {
2749                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2750                                                         break;
2751                                                 }
2752                                         }
2753                                 }
2754                         }
2755                         Mem_Free(filedata);
2756                 }
2757         }
2758         // search for the name
2759         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2760                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2761                         return effectnameindex;
2762         // return 0 if we couldn't find it
2763         return 0;
2764 }
2765
2766 dp_model_t *SV_GetModelByIndex(int modelindex)
2767 {
2768         return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
2769 }
2770
2771 dp_model_t *SV_GetModelFromEdict(prvm_edict_t *ed)
2772 {
2773         int modelindex;
2774         if (!ed || ed->priv.server->free)
2775                 return NULL;
2776         modelindex = (int)ed->fields.server->modelindex;
2777         return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
2778 }
2779
2780 /*
2781 ================
2782 SV_CreateBaseline
2783
2784 ================
2785 */
2786 static void SV_CreateBaseline (void)
2787 {
2788         int i, entnum, large;
2789         prvm_edict_t *svent;
2790
2791         // LordHavoc: clear *all* states (note just active ones)
2792         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2793         {
2794                 // get the current server version
2795                 svent = PRVM_EDICT_NUM(entnum);
2796
2797                 // LordHavoc: always clear state values, whether the entity is in use or not
2798                 svent->priv.server->baseline = defaultstate;
2799
2800                 if (svent->priv.server->free)
2801                         continue;
2802                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2803                         continue;
2804
2805                 // create entity baseline
2806                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2807                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2808                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2809                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2810                 if (entnum > 0 && entnum <= svs.maxclients)
2811                 {
2812                         svent->priv.server->baseline.colormap = entnum;
2813                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2814                 }
2815                 else
2816                 {
2817                         svent->priv.server->baseline.colormap = 0;
2818                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2819                 }
2820
2821                 large = false;
2822                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2823                 {
2824                         large = true;
2825                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2826                                 large = false;
2827                 }
2828
2829                 // add to the message
2830                 if (large)
2831                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2832                 else
2833                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2834                 MSG_WriteShort (&sv.signon, entnum);
2835
2836                 if (large)
2837                 {
2838                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2839                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2840                 }
2841                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2842                 {
2843                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2844                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2845                 }
2846                 else
2847                 {
2848                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2849                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2850                 }
2851                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2852                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2853                 for (i=0 ; i<3 ; i++)
2854                 {
2855                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2856                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2857                 }
2858         }
2859 }
2860
2861 /*
2862 ================
2863 SV_Prepare_CSQC
2864
2865 Load csprogs.dat and comperss it so it doesn't need to be
2866 reloaded on request.
2867 ================
2868 */
2869 void SV_Prepare_CSQC(void)
2870 {
2871         fs_offset_t progsize;
2872
2873         if(svs.csqc_progdata)
2874         {
2875                 Con_DPrintf("Unloading old CSQC data.\n");
2876                 Mem_Free(svs.csqc_progdata);
2877                 if(svs.csqc_progdata_deflated)
2878                         Mem_Free(svs.csqc_progdata_deflated);
2879         }
2880
2881         svs.csqc_progdata = NULL;
2882         svs.csqc_progdata_deflated = NULL;
2883
2884         Con_Print("Loading csprogs.dat\n");
2885
2886         sv.csqc_progname[0] = 0;
2887         svs.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
2888
2889         if(progsize > 0)
2890         {
2891                 size_t deflated_size;
2892
2893                 sv.csqc_progsize = (int)progsize;
2894                 sv.csqc_progcrc = CRC_Block(svs.csqc_progdata, progsize);
2895                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2896                 Con_Printf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2897
2898                 Con_Print("Compressing csprogs.dat\n");
2899                 //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
2900                 svs.csqc_progdata_deflated = FS_Deflate(svs.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
2901                 svs.csqc_progsize_deflated = (int)deflated_size;
2902                 if(svs.csqc_progdata_deflated)
2903                 {
2904                         Con_Printf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
2905                         Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)svs.csqc_progsize_deflated);
2906                 }
2907                 else
2908                         Con_Printf("Cannot compress - need zlib for this. Using uncompressed progs only.\n");
2909         }
2910 }
2911
2912 /*
2913 ================
2914 SV_SaveSpawnparms
2915
2916 Grabs the current state of each client for saving across the
2917 transition to another level
2918 ================
2919 */
2920 void SV_SaveSpawnparms (void)
2921 {
2922         int             i, j;
2923
2924         svs.serverflags = (int)prog->globals.server->serverflags;
2925
2926         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2927         {
2928                 if (!host_client->active)
2929                         continue;
2930
2931         // call the progs to get default spawn parms for the new client
2932                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2933                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2934                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2935                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2936         }
2937 }
2938
2939 /*
2940 ================
2941 SV_SpawnServer
2942
2943 This is called at the start of each level
2944 ================
2945 */
2946
2947 void SV_SpawnServer (const char *server)
2948 {
2949         prvm_edict_t *ent;
2950         int i;
2951         char *entities;
2952         dp_model_t *worldmodel;
2953         char modelname[sizeof(sv.modelname)];
2954
2955         Con_DPrintf("SpawnServer: %s\n", server);
2956
2957         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2958
2959         if (!FS_FileExists(modelname))
2960         {
2961                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
2962                 return;
2963         }
2964
2965         if (cls.state != ca_dedicated)
2966         {
2967                 SCR_BeginLoadingPlaque();
2968                 S_StopAllSounds();
2969         }
2970
2971         if(sv.active)
2972         {
2973                 SV_VM_Begin();
2974                 World_End(&sv.world);
2975                 if(prog->funcoffsets.SV_Shutdown)
2976                 {
2977                         func_t s = prog->funcoffsets.SV_Shutdown;
2978                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
2979                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
2980                 }
2981                 SV_VM_End();
2982         }
2983
2984         // free q3 shaders so that any newly downloaded shaders will be active
2985         Mod_FreeQ3Shaders();
2986
2987         worldmodel = Mod_ForName(modelname, false, true, NULL);
2988         if (!worldmodel || !worldmodel->TraceBox)
2989         {
2990                 Con_Printf("Couldn't load map %s\n", modelname);
2991                 return;
2992         }
2993
2994         // let's not have any servers with no name
2995         if (hostname.string[0] == 0)
2996                 Cvar_Set ("hostname", "UNNAMED");
2997         scr_centertime_off = 0;
2998
2999         svs.changelevel_issued = false;         // now safe to issue another
3000
3001         // make the map a required file for clients
3002         Curl_ClearRequirements();
3003         Curl_RequireFile(modelname);
3004
3005 //
3006 // tell all connected clients that we are going to a new level
3007 //
3008         if (sv.active)
3009         {
3010                 client_t *client;
3011                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
3012                 {
3013                         if (client->netconnection)
3014                         {
3015                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
3016                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
3017                         }
3018                 }
3019         }
3020         else
3021         {
3022                 // open server port
3023                 NetConn_OpenServerPorts(true);
3024         }
3025
3026 //
3027 // make cvars consistant
3028 //
3029         if (coop.integer)
3030                 Cvar_SetValue ("deathmatch", 0);
3031         // LordHavoc: it can be useful to have skills outside the range 0-3...
3032         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
3033         //Cvar_SetValue ("skill", (float)current_skill);
3034         current_skill = (int)(skill.value + 0.5);
3035
3036 //
3037 // set up the new server
3038 //
3039         memset (&sv, 0, sizeof(sv));
3040         // if running a local client, make sure it doesn't try to access the last
3041         // level's data which is no longer valiud
3042         cls.signon = 0;
3043
3044         Cvar_SetValue("halflifebsp", worldmodel->brush.ishlbsp);
3045
3046         if(*sv_random_seed.string)
3047         {
3048                 srand(sv_random_seed.integer);
3049                 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);
3050         }
3051
3052         SV_VM_Setup();
3053
3054         sv.active = true;
3055
3056         strlcpy (sv.name, server, sizeof (sv.name));
3057
3058         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
3059         if (sv.protocol == PROTOCOL_UNKNOWN)
3060         {
3061                 char buffer[1024];
3062                 Protocol_Names(buffer, sizeof(buffer));
3063                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
3064                 sv.protocol = PROTOCOL_QUAKE;
3065         }
3066
3067         SV_VM_Begin();
3068
3069 // load progs to get entity field count
3070         //PR_LoadProgs ( sv_progs.string );
3071
3072         sv.datagram.maxsize = sizeof(sv.datagram_buf);
3073         sv.datagram.cursize = 0;
3074         sv.datagram.data = sv.datagram_buf;
3075
3076         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
3077         sv.reliable_datagram.cursize = 0;
3078         sv.reliable_datagram.data = sv.reliable_datagram_buf;
3079
3080         sv.signon.maxsize = sizeof(sv.signon_buf);
3081         sv.signon.cursize = 0;
3082         sv.signon.data = sv.signon_buf;
3083
3084 // leave slots at start for clients only
3085         //prog->num_edicts = svs.maxclients+1;
3086
3087         sv.state = ss_loading;
3088         prog->allowworldwrites = true;
3089         sv.paused = false;
3090
3091         prog->globals.server->time = sv.time = 1.0;
3092
3093         Mod_ClearUsed();
3094         worldmodel->used = true;
3095
3096         strlcpy (sv.name, server, sizeof (sv.name));
3097         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
3098         sv.worldmodel = worldmodel;
3099         sv.models[1] = sv.worldmodel;
3100
3101 //
3102 // clear world interaction links
3103 //
3104         World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
3105         World_Start(&sv.world);
3106
3107         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
3108
3109         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
3110         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
3111         for (i = 1;i < sv.worldmodel->brush.numsubmodels && i+1 < MAX_MODELS;i++)
3112         {
3113                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
3114                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, sv.modelname);
3115         }
3116         if(i < sv.worldmodel->brush.numsubmodels)
3117                 Con_Printf("Too many submodels (MAX_MODELS is %i)\n", MAX_MODELS);
3118
3119 //
3120 // load the rest of the entities
3121 //
3122         // AK possible hack since num_edicts is still 0
3123         ent = PRVM_EDICT_NUM(0);
3124         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
3125         ent->priv.server->free = false;
3126         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
3127         ent->fields.server->modelindex = 1;             // world model
3128         ent->fields.server->solid = SOLID_BSP;
3129         ent->fields.server->movetype = MOVETYPE_PUSH;
3130         VectorCopy(sv.world.mins, ent->fields.server->mins);
3131         VectorCopy(sv.world.maxs, ent->fields.server->maxs);
3132         VectorCopy(sv.world.mins, ent->fields.server->absmin);
3133         VectorCopy(sv.world.maxs, ent->fields.server->absmax);
3134
3135         if (coop.value)
3136                 prog->globals.server->coop = coop.integer;
3137         else
3138                 prog->globals.server->deathmatch = deathmatch.integer;
3139
3140         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
3141
3142 // serverflags are for cross level information (sigils)
3143         prog->globals.server->serverflags = svs.serverflags;
3144
3145         // we need to reset the spawned flag on all connected clients here so that
3146         // their thinks don't run during startup (before PutClientInServer)
3147         // we also need to set up the client entities now
3148         // and we need to set the ->edict pointers to point into the progs edicts
3149         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3150         {
3151                 host_client->spawned = false;
3152                 host_client->edict = PRVM_EDICT_NUM(i + 1);
3153                 PRVM_ED_ClearEdict(host_client->edict);
3154         }
3155
3156         // load replacement entity file if found
3157         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
3158         {
3159                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
3160                 PRVM_ED_LoadFromFile (entities);
3161                 Mem_Free(entities);
3162         }
3163         else
3164                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
3165
3166
3167         // LordHavoc: clear world angles (to fix e3m3.bsp)
3168         VectorClear(prog->edicts->fields.server->angles);
3169
3170 // all setup is completed, any further precache statements are errors
3171 //      sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
3172         prog->allowworldwrites = false;
3173
3174 // run two frames to allow everything to settle
3175         prog->globals.server->time = sv.time = 1.0001;
3176         for (i = 0;i < 2;i++)
3177         {
3178                 sv.frametime = 0.1;
3179                 SV_Physics ();
3180         }
3181
3182         if (cls.state == ca_dedicated)
3183                 Mod_PurgeUnused();
3184
3185 // create a baseline for more efficient communications
3186         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)
3187                 SV_CreateBaseline ();
3188
3189         sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
3190
3191         // to prevent network timeouts
3192         realtime = Sys_DoubleTime();
3193
3194 // send serverinfo to all connected clients, and set up botclients coming back from a level change
3195         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3196         {
3197                 host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
3198                 if (!host_client->active)
3199                         continue;
3200                 if (host_client->netconnection)
3201                         SV_SendServerinfo(host_client);
3202                 else
3203                 {
3204                         int j;
3205                         // if client is a botclient coming from a level change, we need to
3206                         // set up client info that normally requires networking
3207
3208                         // copy spawn parms out of the client_t
3209                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
3210                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
3211
3212                         // call the spawn function
3213                         host_client->clientconnectcalled = true;
3214                         prog->globals.server->time = sv.time;
3215                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
3216                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
3217                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
3218                         host_client->spawned = true;
3219                 }
3220         }
3221
3222         Con_DPrint("Server spawned.\n");
3223         NetConn_Heartbeat (2);
3224
3225         SV_VM_End();
3226 }
3227
3228 /////////////////////////////////////////////////////
3229 // SV VM stuff
3230
3231 static void SV_VM_CB_BeginIncreaseEdicts(void)
3232 {
3233         // links don't survive the transition, so unlink everything
3234         World_UnlinkAll(&sv.world);
3235 }
3236
3237 static void SV_VM_CB_EndIncreaseEdicts(void)
3238 {
3239         int i;
3240         prvm_edict_t *ent;
3241
3242         // link every entity except world
3243         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
3244                 if (!ent->priv.server->free)
3245                         SV_LinkEdict(ent);
3246 }
3247
3248 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
3249 {
3250         // LordHavoc: for consistency set these here
3251         int num = PRVM_NUM_FOR_EDICT(e) - 1;
3252
3253         e->priv.server->move = false; // don't move on first frame
3254
3255         if (num >= 0 && num < svs.maxclients)
3256         {
3257                 prvm_eval_t *val;
3258                 // set colormap and team on newly created player entity
3259                 e->fields.server->colormap = num + 1;
3260                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
3261                 // set netname/clientcolors back to client values so that
3262                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
3263                 // reset them
3264                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
3265                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
3266                         val->_float = svs.clients[num].colors;
3267                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
3268                 if( prog->fieldoffsets.playermodel >= 0 )
3269                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
3270                 if( prog->fieldoffsets.playerskin >= 0 )
3271                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
3272                 // Assign netaddress (IP Address, etc)
3273                 if(prog->fieldoffsets.netaddress >= 0)
3274                 { // Valid Field; Process
3275                         if(svs.clients[num].netconnection != NULL)
3276                         {// Valid Address; Assign
3277                                 // Acquire Readable Address
3278                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
3279                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
3280                         }
3281                         else
3282                                 // Invalid / Bot
3283                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
3284                 }
3285         }
3286 }
3287
3288 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
3289 {
3290         int i;
3291         int e;
3292
3293         World_UnlinkEdict(ed);          // unlink from world bsp
3294
3295         ed->fields.server->model = 0;
3296         ed->fields.server->takedamage = 0;
3297         ed->fields.server->modelindex = 0;
3298         ed->fields.server->colormap = 0;
3299         ed->fields.server->skin = 0;
3300         ed->fields.server->frame = 0;
3301         VectorClear(ed->fields.server->origin);
3302         VectorClear(ed->fields.server->angles);
3303         ed->fields.server->nextthink = -1;
3304         ed->fields.server->solid = 0;
3305
3306         VM_RemoveEdictSkeleton(ed);
3307         World_Physics_RemoveFromEntity(&sv.world, ed);
3308         World_Physics_RemoveJointFromEntity(&sv.world, ed);
3309
3310         // make sure csqc networking is aware of the removed entity
3311         e = PRVM_NUM_FOR_EDICT(ed);
3312         sv.csqcentityversion[e] = 0;
3313         for (i = 0;i < svs.maxclients;i++)
3314         {
3315                 if (svs.clients[i].csqcentityscope[e])
3316                         svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
3317                 svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
3318         }
3319 }
3320
3321 static void SV_VM_CB_CountEdicts(void)
3322 {
3323         int             i;
3324         prvm_edict_t    *ent;
3325         int             active, models, solid, step;
3326
3327         active = models = solid = step = 0;
3328         for (i=0 ; i<prog->num_edicts ; i++)
3329         {
3330                 ent = PRVM_EDICT_NUM(i);
3331                 if (ent->priv.server->free)
3332                         continue;
3333                 active++;
3334                 if (ent->fields.server->solid)
3335                         solid++;
3336                 if (ent->fields.server->model)
3337                         models++;
3338                 if (ent->fields.server->movetype == MOVETYPE_STEP)
3339                         step++;
3340         }
3341
3342         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
3343         Con_Printf("active    :%3i\n", active);
3344         Con_Printf("view      :%3i\n", models);
3345         Con_Printf("touch     :%3i\n", solid);
3346         Con_Printf("step      :%3i\n", step);
3347 }
3348
3349 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
3350 {
3351         // remove things from different skill levels or deathmatch
3352         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
3353         {
3354                 if (deathmatch.integer)
3355                 {
3356                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
3357                         {
3358                                 return false;
3359                         }
3360                 }
3361                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
3362                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
3363                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
3364                 {
3365                         return false;
3366                 }
3367         }
3368         return true;
3369 }
3370
3371 static void SV_VM_Setup(void)
3372 {
3373         PRVM_Begin;
3374         PRVM_InitProg( PRVM_SERVERPROG );
3375
3376         // allocate the mempools
3377         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
3378         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
3379         prog->builtins = vm_sv_builtins;
3380         prog->numbuiltins = vm_sv_numbuiltins;
3381         prog->headercrc = PROGHEADER_CRC;
3382         prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
3383         prog->max_edicts = 512;
3384         if (sv.protocol == PROTOCOL_QUAKE)
3385                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
3386         else if (sv.protocol == PROTOCOL_QUAKEDP)
3387                 prog->limit_edicts = 2048; // guessing
3388         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
3389                 prog->limit_edicts = 2048; // guessing!
3390         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
3391                 prog->limit_edicts = 4096; // guessing!
3392         else
3393                 prog->limit_edicts = MAX_EDICTS;
3394         prog->reserved_edicts = svs.maxclients;
3395         prog->edictprivate_size = sizeof(edict_engineprivate_t);
3396         prog->name = "server";
3397         prog->extensionstring = vm_sv_extensions;
3398         prog->loadintoworld = true;
3399
3400         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
3401         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
3402         prog->init_edict = SV_VM_CB_InitEdict;
3403         prog->free_edict = SV_VM_CB_FreeEdict;
3404         prog->count_edicts = SV_VM_CB_CountEdicts;
3405         prog->load_edict = SV_VM_CB_LoadEdict;
3406         prog->init_cmd = VM_SV_Cmd_Init;
3407         prog->reset_cmd = VM_SV_Cmd_Reset;
3408         prog->error_cmd = Host_Error;
3409         prog->ExecuteProgram = SVVM_ExecuteProgram;
3410
3411         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
3412         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
3413
3414         // some mods compiled with scrambling compilers lack certain critical
3415         // global names and field names such as "self" and "time" and "nextthink"
3416         // so we have to set these offsets manually, matching the entvars_t
3417         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
3418         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
3419         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
3420         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
3421         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
3422         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
3423         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
3424         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
3425         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
3426         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
3427         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
3428         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
3429         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
3430         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
3431         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
3432         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
3433         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
3434         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
3435         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
3436         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
3437         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
3438         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
3439         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
3440         // OP_STATE is always supported on server (due to entvars_t)
3441         prog->flag |= PRVM_OP_STATE;
3442
3443         VM_CustomStats_Clear();//[515]: csqc
3444
3445         PRVM_End;
3446
3447         SV_Prepare_CSQC();
3448 }
3449
3450 void SV_VM_Begin(void)
3451 {
3452         PRVM_Begin;
3453         PRVM_SetProg( PRVM_SERVERPROG );
3454
3455         prog->globals.server->time = (float) sv.time;
3456 }
3457
3458 void SV_VM_End(void)
3459 {
3460         PRVM_End;
3461 }