sv_main.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // sv_main.c -- server main program
  21
  22 #include "quakedef.h"
  23 #include "sv_demo.h"
  24 #include "libcurl.h"
  25 #include "csprogs.h"
  26
  27 static void SV_SaveEntFile_f(void);
  28 static void SV_StartDownload_f(void);
  29 static void SV_Download_f(void);
  30 static void SV_VM_Setup();
  31 extern cvar_t net_connecttimeout;
  32
  33 void VM_CustomStats_Clear (void);
  34 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
  35
  36 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
  37 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
  38 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
  39 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
  40 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
  41 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
  42 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
  43 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
  44 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
  45 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
  46 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
  47
  48 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
  49 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
  50 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
  51 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
  52 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
  53 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
  54 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
  55 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
  56 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
  57 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
  58 cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "64", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
  59 cvar_t sv_checkforpacketsduringsleep = {0, "sv_checkforpacketsduringsleep", "0", "uses select() function to wait between frames which can be interrupted by packets being received, instead of Sleep()/usleep()/SDL_Sleep() functions which do not check for packets"};
  60 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
  61 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
  62 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
  63 cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "4", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
  64 cvar_t sv_cullentities_nevercullbmodels = {0, "sv_cullentities_nevercullbmodels", "0", "if enabled the clients are always notified of moving doors and lifts and other submodels of world (warning: eats a lot of network bandwidth on some levels!)"};
  65 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
  66 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
  67 cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "0", "somewhat slow but very tight culling of hidden entities, minimizes network traffic and makes wallhack cheats useless"};
  68 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
  69 cvar_t sv_cullentities_trace_delay_players = {0, "sv_cullentities_trace_delay_players", "0.2", "number of seconds until the entity gets actually culled if it is a player entity"};
  70 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
  71 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
  72 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
  73 cvar_t sv_cullentities_trace_samples_extra = {0, "sv_cullentities_trace_samples_extra", "2", "number of samples to test for entity culling when the entity affects its surroundings by e.g. dlight"};
  74 cvar_t sv_cullentities_trace_samples_players = {0, "sv_cullentities_trace_samples_players", "8", "number of samples to test for entity culling when the entity is a player entity"};
  75 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
  76 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
  77 cvar_t sv_edgefriction = {0, "edgefriction", "1", "how much you slow down when nearing a ledge you might fall off, multiplier of sv_friction (Quake used 2, QuakeWorld used 1 due to a bug in physics code)"};
  78 cvar_t sv_entpatch = {0, "sv_entpatch", "1", "enables loading of .ent files to override entities in the bsp (for example Threewave CTF server pack contains .ent patch files enabling play of CTF on id1 maps)"};
  79 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "1", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
  80 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
  81 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
  82 cvar_t sv_gameplayfix_blowupfallenzombies = {0, "sv_gameplayfix_blowupfallenzombies", "1", "causes findradius to detect SOLID_NOT entities such as zombies and corpses on the floor, allowing splash damage to apply to them"};
  83 cvar_t sv_gameplayfix_delayprojectiles = {0, "sv_gameplayfix_delayprojectiles", "1", "causes entities to not move on the same frame they are spawned, meaning that projectiles wait until the next frame to perform their first move, giving proper interpolation and rocket trails, but making weapons harder to use at low framerates"};
  84 cvar_t sv_gameplayfix_droptofloorstartsolid = {0, "sv_gameplayfix_droptofloorstartsolid", "1", "prevents items and monsters that start in a solid area from falling out of the level (makes droptofloor treat trace_startsolid as an acceptable outcome)"};
  85 cvar_t sv_gameplayfix_droptofloorstartsolid_nudgetocorrect = {0, "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect", "1", "tries to nudge stuck items and monsters out of walls before droptofloor is performed"};
  86 cvar_t sv_gameplayfix_easierwaterjump = {0, "sv_gameplayfix_easierwaterjump", "1", "changes water jumping to make it easier to get out of water (exactly like in QuakeWorld)"};
  87 cvar_t sv_gameplayfix_findradiusdistancetobox = {0, "sv_gameplayfix_findradiusdistancetobox", "1", "causes findradius to check the distance to the corner of a box rather than the center of the box, makes findradius detect bmodels such as very large doors that would otherwise be unaffected by splash damage"};
  88 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
  89 cvar_t sv_gameplayfix_multiplethinksperframe = {0, "sv_gameplayfix_multiplethinksperframe", "1", "allows entities to think more often than the server framerate, primarily useful for very high fire rate weapons"};
  90 cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
  91 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"};
  92 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)"};
  93 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)"};
  94 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"};
  95 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"};
  96 cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
  97 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
  98 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
  99 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
 100 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
 101 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)"};
 102 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
 103 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
 104 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
 105 cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
 106 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
 107 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
 108 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
 109 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
 110 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"};
 111 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)"};
 112 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)"};
 113 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)"};
 114 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
 115 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
 116 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
 117 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"};
 118 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"};
 119 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"};
 120 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"};
 121 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
 122
 123 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 124 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 125 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 126 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 127 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
 128 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
 129 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
 130 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
 131 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
 132 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)"};
 133
 134 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
 135 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
 136 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
 137 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
 138 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
 139 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
 140 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
 141 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
 142 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
 143 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
 144 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
 145 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
 146 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
 147 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
 148 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
 149 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
 150 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
 151 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
 152 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
 153 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
 154 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 155
 156 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)"};
 157 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)" };
 158
 159
 160 server_t sv;
 161 server_static_t svs;
 162
 163 mempool_t *sv_mempool = NULL;
 164
 165 extern cvar_t slowmo;
 166 extern float            scr_centertime_off;
 167
 168 // MUST match effectnameindex_t in client.h
 169 static const char *standardeffectnames[EFFECT_TOTAL] =
 170 {
 171         "",
 172         "TE_GUNSHOT",
 173         "TE_GUNSHOTQUAD",
 174         "TE_SPIKE",
 175         "TE_SPIKEQUAD",
 176         "TE_SUPERSPIKE",
 177         "TE_SUPERSPIKEQUAD",
 178         "TE_WIZSPIKE",
 179         "TE_KNIGHTSPIKE",
 180         "TE_EXPLOSION",
 181         "TE_EXPLOSIONQUAD",
 182         "TE_TAREXPLOSION",
 183         "TE_TELEPORT",
 184         "TE_LAVASPLASH",
 185         "TE_SMALLFLASH",
 186         "TE_FLAMEJET",
 187         "EF_FLAME",
 188         "TE_BLOOD",
 189         "TE_SPARK",
 190         "TE_PLASMABURN",
 191         "TE_TEI_G3",
 192         "TE_TEI_SMOKE",
 193         "TE_TEI_BIGEXPLOSION",
 194         "TE_TEI_PLASMAHIT",
 195         "EF_STARDUST",
 196         "TR_ROCKET",
 197         "TR_GRENADE",
 198         "TR_BLOOD",
 199         "TR_WIZSPIKE",
 200         "TR_SLIGHTBLOOD",
 201         "TR_KNIGHTSPIKE",
 202         "TR_VORESPIKE",
 203         "TR_NEHAHRASMOKE",
 204         "TR_NEXUIZPLASMA",
 205         "TR_GLOWTRAIL",
 206         "SVC_PARTICLE"
 207 };
 208
 209 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
 210
 211 prvm_required_field_t reqfields[] =
 212 {
 213         {ev_entity, "cursor_trace_ent"},
 214         {ev_entity, "drawonlytoclient"},
 215         {ev_entity, "exteriormodeltoclient"},
 216         {ev_entity, "nodrawtoclient"},
 217         {ev_entity, "tag_entity"},
 218         {ev_entity, "viewmodelforclient"},
 219         {ev_float, "SendFlags"},
 220         {ev_float, "Version"},
 221         {ev_float, "alpha"},
 222         {ev_float, "ammo_cells1"},
 223         {ev_float, "ammo_lava_nails"},
 224         {ev_float, "ammo_multi_rockets"},
 225         {ev_float, "ammo_nails1"},
 226         {ev_float, "ammo_plasma"},
 227         {ev_float, "ammo_rockets1"},
 228         {ev_float, "ammo_shells1"},
 229         {ev_float, "button3"},
 230         {ev_float, "button4"},
 231         {ev_float, "button5"},
 232         {ev_float, "button6"},
 233         {ev_float, "button7"},
 234         {ev_float, "button8"},
 235         {ev_float, "button9"},
 236         {ev_float, "button10"},
 237         {ev_float, "button11"},
 238         {ev_float, "button12"},
 239         {ev_float, "button13"},
 240         {ev_float, "button14"},
 241         {ev_float, "button15"},
 242         {ev_float, "button16"},
 243         {ev_float, "buttonchat"},
 244         {ev_float, "buttonuse"},
 245         {ev_float, "clientcolors"},
 246         {ev_float, "cursor_active"},
 247         {ev_float, "disableclientprediction"},
 248         {ev_float, "fullbright"},
 249         {ev_float, "glow_color"},
 250         {ev_float, "glow_size"},
 251         {ev_float, "glow_trail"},
 252         {ev_float, "gravity"},
 253         {ev_float, "idealpitch"},
 254         {ev_float, "items2"},
 255         {ev_float, "light_lev"},
 256         {ev_float, "modelflags"},
 257         {ev_float, "pflags"},
 258         {ev_float, "ping"},
 259         {ev_float, "pitch_speed"},
 260         {ev_float, "pmodel"},
 261         {ev_float, "renderamt"}, // HalfLife support
 262         {ev_float, "rendermode"}, // HalfLife support
 263         {ev_float, "scale"},
 264         {ev_float, "style"},
 265         {ev_float, "tag_index"},
 266         {ev_float, "viewzoom"},
 267         {ev_function, "SendEntity"},
 268         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
 269         {ev_function, "customizeentityforclient"},
 270         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
 271         {ev_string, "netaddress"},
 272         {ev_string, "playermodel"},
 273         {ev_string, "playerskin"},
 274         {ev_vector, "color"},
 275         {ev_vector, "colormod"},
 276         {ev_vector, "cursor_screen"},
 277         {ev_vector, "cursor_trace_endpos"},
 278         {ev_vector, "cursor_trace_start"},
 279         {ev_vector, "movement"},
 280         {ev_vector, "punchvector"},
 281 };
 282
 283
 284
 285 //============================================================================
 286
 287 void SV_AreaStats_f(void)
 288 {
 289         World_PrintAreaStats(&sv.world, "server");
 290 }
 291
 292 /*
 293 ===============
 294 SV_Init
 295 ===============
 296 */
 297 void SV_Init (void)
 298 {
 299         // init the csqc progs cvars, since they are updated/used by the server code
 300         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
 301         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
 302         extern cvar_t csqc_progcrc;
 303         extern cvar_t csqc_progsize;
 304         Cvar_RegisterVariable (&csqc_progname);
 305         Cvar_RegisterVariable (&csqc_progcrc);
 306         Cvar_RegisterVariable (&csqc_progsize);
 307
 308         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
 309         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
 310         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
 311         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
 312
 313         Cvar_RegisterVariable (&coop);
 314         Cvar_RegisterVariable (&deathmatch);
 315         Cvar_RegisterVariable (&fraglimit);
 316         Cvar_RegisterVariable (&gamecfg);
 317         Cvar_RegisterVariable (&noexit);
 318         Cvar_RegisterVariable (&nomonsters);
 319         Cvar_RegisterVariable (&pausable);
 320         Cvar_RegisterVariable (&pr_checkextension);
 321         Cvar_RegisterVariable (&samelevel);
 322         Cvar_RegisterVariable (&skill);
 323         Cvar_RegisterVariable (&slowmo);
 324         Cvar_RegisterVariable (&sv_accelerate);
 325         Cvar_RegisterVariable (&sv_aim);
 326         Cvar_RegisterVariable (&sv_airaccel_qw);
 327         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
 328         Cvar_RegisterVariable (&sv_airaccelerate);
 329         Cvar_RegisterVariable (&sv_allowdownloads);
 330         Cvar_RegisterVariable (&sv_allowdownloads_archive);
 331         Cvar_RegisterVariable (&sv_allowdownloads_config);
 332         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
 333         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
 334         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
 335         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
 336         Cvar_RegisterVariable (&sv_clmovement_enable);
 337         Cvar_RegisterVariable (&sv_clmovement_minping);
 338         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
 339         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
 340         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
 341         Cvar_RegisterVariable (&sv_cullentities_pvs);
 342         Cvar_RegisterVariable (&sv_cullentities_stats);
 343         Cvar_RegisterVariable (&sv_cullentities_trace);
 344         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
 345         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
 346         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
 347         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
 348         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
 349         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
 350         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
 351         Cvar_RegisterVariable (&sv_debugmove);
 352         Cvar_RegisterVariable (&sv_echobprint);
 353         Cvar_RegisterVariable (&sv_edgefriction);
 354         Cvar_RegisterVariable (&sv_entpatch);
 355         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
 356         Cvar_RegisterVariable (&sv_freezenonclients);
 357         Cvar_RegisterVariable (&sv_friction);
 358         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
 359         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
 360         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
 361         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
 362         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
 363         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
 364         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
 365         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
 366         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
 367         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
 368         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
 369         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
 370         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
 371         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
 372         Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
 373         Cvar_RegisterVariable (&sv_gravity);
 374         Cvar_RegisterVariable (&sv_idealpitchscale);
 375         Cvar_RegisterVariable (&sv_jumpstep);
 376         Cvar_RegisterVariable (&sv_jumpvelocity);
 377         Cvar_RegisterVariable (&sv_maxairspeed);
 378         Cvar_RegisterVariable (&sv_maxrate);
 379         Cvar_RegisterVariable (&sv_maxspeed);
 380         Cvar_RegisterVariable (&sv_maxvelocity);
 381         Cvar_RegisterVariable (&sv_newflymove);
 382         Cvar_RegisterVariable (&sv_nostep);
 383         Cvar_RegisterVariable (&sv_playerphysicsqc);
 384         Cvar_RegisterVariable (&sv_progs);
 385         Cvar_RegisterVariable (&sv_protocolname);
 386         Cvar_RegisterVariable (&sv_random_seed);
 387         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
 388         Cvar_RegisterVariable (&sv_sound_land);
 389         Cvar_RegisterVariable (&sv_sound_watersplash);
 390         Cvar_RegisterVariable (&sv_stepheight);
 391         Cvar_RegisterVariable (&sv_stopspeed);
 392         Cvar_RegisterVariable (&sv_wallfriction);
 393         Cvar_RegisterVariable (&sv_wateraccelerate);
 394         Cvar_RegisterVariable (&sv_waterfriction);
 395         Cvar_RegisterVariable (&sys_ticrate);
 396         Cvar_RegisterVariable (&teamplay);
 397         Cvar_RegisterVariable (&timelimit);
 398
 399         Cvar_RegisterVariable (&saved1);
 400         Cvar_RegisterVariable (&saved2);
 401         Cvar_RegisterVariable (&saved3);
 402         Cvar_RegisterVariable (&saved4);
 403         Cvar_RegisterVariable (&savedgamecfg);
 404         Cvar_RegisterVariable (&scratch1);
 405         Cvar_RegisterVariable (&scratch2);
 406         Cvar_RegisterVariable (&scratch3);
 407         Cvar_RegisterVariable (&scratch4);
 408         Cvar_RegisterVariable (&temp1);
 409
 410         // LordHavoc: Nehahra uses these to pass data around cutscene demos
 411         if (gamemode == GAME_NEHAHRA)
 412         {
 413                 Cvar_RegisterVariable (&nehx00);
 414                 Cvar_RegisterVariable (&nehx01);
 415                 Cvar_RegisterVariable (&nehx02);
 416                 Cvar_RegisterVariable (&nehx03);
 417                 Cvar_RegisterVariable (&nehx04);
 418                 Cvar_RegisterVariable (&nehx05);
 419                 Cvar_RegisterVariable (&nehx06);
 420                 Cvar_RegisterVariable (&nehx07);
 421                 Cvar_RegisterVariable (&nehx08);
 422                 Cvar_RegisterVariable (&nehx09);
 423                 Cvar_RegisterVariable (&nehx10);
 424                 Cvar_RegisterVariable (&nehx11);
 425                 Cvar_RegisterVariable (&nehx12);
 426                 Cvar_RegisterVariable (&nehx13);
 427                 Cvar_RegisterVariable (&nehx14);
 428                 Cvar_RegisterVariable (&nehx15);
 429                 Cvar_RegisterVariable (&nehx16);
 430                 Cvar_RegisterVariable (&nehx17);
 431                 Cvar_RegisterVariable (&nehx18);
 432                 Cvar_RegisterVariable (&nehx19);
 433         }
 434         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
 435
 436         Cvar_RegisterVariable (&sv_autodemo_perclient);
 437         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
 438
 439         // any special defaults for gamemodes go here
 440         if (gamemode == GAME_HIPNOTIC)
 441         {
 442                 // 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.
 443                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
 444                 // 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
 445                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
 446         }
 447         if (gamemode == GAME_ROGUE)
 448         {
 449                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
 450                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
 451         }
 452
 453         sv_mempool = Mem_AllocPool("server", 0, NULL);
 454 }
 455
 456 static void SV_SaveEntFile_f(void)
 457 {
 458         char basename[MAX_QPATH];
 459         if (!sv.active || !sv.worldmodel)
 460         {
 461                 Con_Print("Not running a server\n");
 462                 return;
 463         }
 464         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
 465         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
 466 }
 467
 468
 469 /*
 470 =============================================================================
 471
 472 EVENT MESSAGES
 473
 474 =============================================================================
 475 */
 476
 477 /*
 478 ==================
 479 SV_StartParticle
 480
 481 Make sure the event gets sent to all clients
 482 ==================
 483 */
 484 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
 485 {
 486         int i;
 487
 488         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
 489                 return;
 490         MSG_WriteByte (&sv.datagram, svc_particle);
 491         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 492         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 493         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 494         for (i=0 ; i<3 ; i++)
 495                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
 496         MSG_WriteByte (&sv.datagram, count);
 497         MSG_WriteByte (&sv.datagram, color);
 498         SV_FlushBroadcastMessages();
 499 }
 500
 501 /*
 502 ==================
 503 SV_StartEffect
 504
 505 Make sure the event gets sent to all clients
 506 ==================
 507 */
 508 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 509 {
 510         if (modelindex >= 256 || startframe >= 256)
 511         {
 512                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 513                         return;
 514                 MSG_WriteByte (&sv.datagram, svc_effect2);
 515                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 516                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 517                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 518                 MSG_WriteShort (&sv.datagram, modelindex);
 519                 MSG_WriteShort (&sv.datagram, startframe);
 520                 MSG_WriteByte (&sv.datagram, framecount);
 521                 MSG_WriteByte (&sv.datagram, framerate);
 522         }
 523         else
 524         {
 525                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 526                         return;
 527                 MSG_WriteByte (&sv.datagram, svc_effect);
 528                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
 529                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
 530                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
 531                 MSG_WriteByte (&sv.datagram, modelindex);
 532                 MSG_WriteByte (&sv.datagram, startframe);
 533                 MSG_WriteByte (&sv.datagram, framecount);
 534                 MSG_WriteByte (&sv.datagram, framerate);
 535         }
 536         SV_FlushBroadcastMessages();
 537 }
 538
 539 /*
 540 ==================
 541 SV_StartSound
 542
 543 Each entity can have eight independant sound sources, like voice,
 544 weapon, feet, etc.
 545
 546 Channel 0 is an auto-allocate channel, the others override anything
 547 already running on that entity/channel pair.
 548
 549 An attenuation of 0 will play full volume everywhere in the level.
 550 Larger attenuations will drop off.  (max 4 attenuation)
 551
 552 ==================
 553 */
 554 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
 555 {
 556         int sound_num, field_mask, i, ent;
 557
 558         if (volume < 0 || volume > 255)
 559         {
 560                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
 561                 return;
 562         }
 563
 564         if (attenuation < 0 || attenuation > 4)
 565         {
 566                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
 567                 return;
 568         }
 569
 570         if (channel < 0 || channel > 7)
 571         {
 572                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
 573                 return;
 574         }
 575
 576         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 577                 return;
 578
 579 // find precache number for sound
 580         sound_num = SV_SoundIndex(sample, 1);
 581         if (!sound_num)
 582                 return;
 583
 584         ent = PRVM_NUM_FOR_EDICT(entity);
 585
 586         field_mask = 0;
 587         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 588                 field_mask |= SND_VOLUME;
 589         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 590                 field_mask |= SND_ATTENUATION;
 591         if (ent >= 8192)
 592                 field_mask |= SND_LARGEENTITY;
 593         if (sound_num >= 256 || channel >= 8)
 594                 field_mask |= SND_LARGESOUND;
 595
 596 // directed messages go only to the entity they are targeted on
 597         MSG_WriteByte (&sv.datagram, svc_sound);
 598         MSG_WriteByte (&sv.datagram, field_mask);
 599         if (field_mask & SND_VOLUME)
 600                 MSG_WriteByte (&sv.datagram, volume);
 601         if (field_mask & SND_ATTENUATION)
 602                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 603         if (field_mask & SND_LARGEENTITY)
 604         {
 605                 MSG_WriteShort (&sv.datagram, ent);
 606                 MSG_WriteByte (&sv.datagram, channel);
 607         }
 608         else
 609                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 610         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
 611                 MSG_WriteShort (&sv.datagram, sound_num);
 612         else
 613                 MSG_WriteByte (&sv.datagram, sound_num);
 614         for (i = 0;i < 3;i++)
 615                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
 616         SV_FlushBroadcastMessages();
 617 }
 618
 619 /*
 620 ==================
 621 SV_StartPointSound
 622
 623 Nearly the same logic as SV_StartSound, except an origin
 624 instead of an entity is provided and channel is omitted.
 625
 626 The entity sent to the client is 0 (world) and the channel
 627 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
 628 function, therefore the check for it is omitted.
 629
 630 ==================
 631 */
 632 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
 633 {
 634         int sound_num, field_mask, i;
 635
 636         if (volume < 0 || volume > 255)
 637         {
 638                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
 639                 return;
 640         }
 641
 642         if (attenuation < 0 || attenuation > 4)
 643         {
 644                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
 645                 return;
 646         }
 647
 648         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 649                 return;
 650
 651         // find precache number for sound
 652         sound_num = SV_SoundIndex(sample, 1);
 653         if (!sound_num)
 654                 return;
 655
 656         field_mask = 0;
 657         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 658                 field_mask |= SND_VOLUME;
 659         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 660                 field_mask |= SND_ATTENUATION;
 661         if (sound_num >= 256)
 662                 field_mask |= SND_LARGESOUND;
 663
 664 // directed messages go only to the entity they are targeted on
 665         MSG_WriteByte (&sv.datagram, svc_sound);
 666         MSG_WriteByte (&sv.datagram, field_mask);
 667         if (field_mask & SND_VOLUME)
 668                 MSG_WriteByte (&sv.datagram, volume);
 669         if (field_mask & SND_ATTENUATION)
 670                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
 671         // Always write entnum 0 for the world entity
 672         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
 673         if (field_mask & SND_LARGESOUND)
 674                 MSG_WriteShort (&sv.datagram, sound_num);
 675         else
 676                 MSG_WriteByte (&sv.datagram, sound_num);
 677         for (i = 0;i < 3;i++)
 678                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
 679         SV_FlushBroadcastMessages();
 680 }
 681
 682 /*
 683 ==============================================================================
 684
 685 CLIENT SPAWNING
 686
 687 ==============================================================================
 688 */
 689
 690 /*
 691 ================
 692 SV_SendServerinfo
 693
 694 Sends the first message from the server to a connected client.
 695 This will be sent on the initial connection and upon each server load.
 696 ================
 697 */
 698 void SV_SendServerinfo (client_t *client)
 699 {
 700         int i;
 701         char message[128];
 702
 703         // we know that this client has a netconnection and thus is not a bot
 704
 705         // edicts get reallocated on level changes, so we need to update it here
 706         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
 707
 708         // clear cached stuff that depends on the level
 709         client->weaponmodel[0] = 0;
 710         client->weaponmodelindex = 0;
 711
 712         // LordHavoc: clear entityframe tracking
 713         client->latestframenum = 0;
 714
 715         // initialize the movetime, so a speedhack can't make use of the time before this client joined
 716         client->cmd.time = sv.time;
 717
 718         if (client->entitydatabase)
 719                 EntityFrame_FreeDatabase(client->entitydatabase);
 720         if (client->entitydatabase4)
 721                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 722         if (client->entitydatabase5)
 723                 EntityFrame5_FreeDatabase(client->entitydatabase5);
 724
 725         memset(client->stats, 0, sizeof(client->stats));
 726         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
 727
 728         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)
 729         {
 730                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
 731                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
 732                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
 733                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
 734                 else
 735                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
 736         }
 737
 738         // reset csqc entity versions
 739         for (i = 0;i < prog->max_edicts;i++)
 740         {
 741                 client->csqcentityscope[i] = 0;
 742                 client->csqcentitysendflags[i] = 0xFFFFFF;
 743                 client->csqcentityglobalhistory[i] = 0;
 744         }
 745         for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
 746         {
 747                 client->csqcentityframehistory[i].num = 0;
 748                 client->csqcentityframehistory[i].framenum = -1;
 749         }
 750         client->csqcnumedicts = 0;
 751         client->csqcentityframehistory_next = 0;
 752
 753         SZ_Clear (&client->netconnection->message);
 754         MSG_WriteByte (&client->netconnection->message, svc_print);
 755         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
 756         MSG_WriteString (&client->netconnection->message,message);
 757
 758         SV_StopDemoRecording(client); // to split up demos into different files
 759         if(sv_autodemo_perclient.integer && client->netconnection)
 760         {
 761                 char demofile[MAX_OSPATH];
 762                 char levelname[MAX_QPATH];
 763                 char ipaddress[MAX_QPATH];
 764                 size_t i;
 765
 766                 // start a new demo file
 767                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
 768                 if (strrchr(levelname, '.'))
 769                         *(strrchr(levelname, '.')) = 0;
 770
 771                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
 772                 for(i = 0; ipaddress[i]; ++i)
 773                         if(!isalnum(ipaddress[i]))
 774                                 ipaddress[i] = '-';
 775                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
 776
 777                 SV_StartDemoRecording(client, demofile, -1);
 778         }
 779
 780         //[515]: init csprogs according to version of svprogs, check the crc, etc.
 781         if (sv.csqc_progname[0])
 782         {
 783                 prvm_eval_t *val;
 784                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
 785                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 786                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
 787                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 788                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
 789                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 790                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
 791
 792                 if(client->sv_demo_file != NULL)
 793                 {
 794                         int i;
 795                         char buf[NET_MAXMESSAGE];
 796                         sizebuf_t sb;
 797
 798                         sb.data = (unsigned char *) buf;
 799                         sb.maxsize = sizeof(buf);
 800                         i = 0;
 801                         while(MakeDownloadPacket(sv.csqc_progname, sv.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
 802                                 SV_WriteDemoMessage(client, &sb, false);
 803                 }
 804
 805                 //[515]: init stufftext string (it is sent before svc_serverinfo)
 806                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
 807                 if (val)
 808                 {
 809                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 810                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
 811                 }
 812         }
 813
 814         //if (sv_allowdownloads.integer)
 815         // always send the info that the server supports the protocol, even if downloads are forbidden
 816         // only because of that, the CSQC exception can work
 817         {
 818                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
 819                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
 820         }
 821
 822         // send at this time so it's guaranteed to get executed at the right time
 823         {
 824                 client_t *save;
 825                 save = host_client;
 826                 host_client = client;
 827                 Curl_SendRequirements();
 828                 host_client = save;
 829         }
 830
 831         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
 832         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
 833         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
 834
 835         if (!coop.integer && deathmatch.integer)
 836                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
 837         else
 838                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
 839
 840         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
 841
 842         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
 843                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
 844         MSG_WriteByte (&client->netconnection->message, 0);
 845
 846         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
 847                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
 848         MSG_WriteByte (&client->netconnection->message, 0);
 849
 850 // send music
 851         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
 852         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 853         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
 854
 855 // set view
 856 // store this in clientcamera, too
 857         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
 858         MSG_WriteByte (&client->netconnection->message, svc_setview);
 859         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
 860
 861         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
 862         MSG_WriteByte (&client->netconnection->message, 1);
 863
 864         client->spawned = false;                // need prespawn, spawn, etc
 865         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
 866
 867         // clear movement info until client enters the new level properly
 868         memset(&client->cmd, 0, sizeof(client->cmd));
 869         client->movesequence = 0;
 870 #ifdef NUM_PING_TIMES
 871         for (i = 0;i < NUM_PING_TIMES;i++)
 872                 client->ping_times[i] = 0;
 873         client->num_pings = 0;
 874 #endif
 875         client->ping = 0;
 876
 877         // allow the client some time to send his keepalives, even if map loading took ages
 878         client->netconnection->timeout = realtime + net_connecttimeout.value;
 879 }
 880
 881 /*
 882 ================
 883 SV_ConnectClient
 884
 885 Initializes a client_t for a new net connection.  This will only be called
 886 once for a player each game, not once for each level change.
 887 ================
 888 */
 889 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 890 {
 891         client_t                *client;
 892         int                             i;
 893         float                   spawn_parms[NUM_SPAWN_PARMS];
 894
 895         client = svs.clients + clientnum;
 896
 897 // set up the client_t
 898         if (sv.loadgame)
 899                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 900         memset (client, 0, sizeof(*client));
 901         client->active = true;
 902         client->netconnection = netconnection;
 903
 904         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
 905
 906         strlcpy(client->name, "unconnected", sizeof(client->name));
 907         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
 908         client->spawned = false;
 909         client->edict = PRVM_EDICT_NUM(clientnum+1);
 910         if (client->netconnection)
 911                 client->netconnection->message.allowoverflow = true;            // we can catch it
 912         // prepare the unreliable message buffer
 913         client->unreliablemsg.data = client->unreliablemsg_data;
 914         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
 915         // updated by receiving "rate" command from client, this is also the default if not using a DP client
 916         client->rate = 1000000000;
 917         // no limits for local player
 918         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
 919                 client->rate = 1000000000;
 920         client->connecttime = realtime;
 921
 922         if (sv.loadgame)
 923                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 924         else
 925         {
 926                 // call the progs to get default spawn parms for the new client
 927                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
 928                 prog->globals.server->self = 0;
 929                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
 930                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 931                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
 932
 933                 // set up the entity for this client (including .colormap, .team, etc)
 934                 PRVM_ED_ClearEdict(client->edict);
 935         }
 936
 937         // don't call SendServerinfo for a fresh botclient because its fields have
 938         // not been set up by the qc yet
 939         if (client->netconnection)
 940                 SV_SendServerinfo (client);
 941         else
 942                 client->spawned = true;
 943 }
 944
 945
 946 /*
 947 ===============================================================================
 948
 949 FRAME UPDATES
 950
 951 ===============================================================================
 952 */
 953
 954 /*
 955 =============================================================================
 956
 957 The PVS must include a small area around the client to allow head bobbing
 958 or other small motion on the client side.  Otherwise, a bob might cause an
 959 entity that should be visible to not show up, especially when the bob
 960 crosses a waterline.
 961
 962 =============================================================================
 963 */
 964
 965 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
 966 {
 967         int i;
 968         unsigned int sendflags;
 969         unsigned int version;
 970         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
 971         unsigned int customizeentityforclient;
 972         float f;
 973         vec3_t cullmins, cullmaxs;
 974         dp_model_t *model;
 975         prvm_eval_t *val, *val2;
 976
 977         // this 2 billion unit check is actually to detect NAN origins
 978         // (we really don't want to send those)
 979         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
 980                 return false;
 981
 982         // EF_NODRAW prevents sending for any reason except for your own
 983         // client, so we must keep all clients in this superset
 984         effects = (unsigned)ent->fields.server->effects;
 985
 986         // we can omit invisible entities with no effects that are not clients
 987         // LordHavoc: this could kill tags attached to an invisible entity, I
 988         // just hope we never have to support that case
 989         i = (int)ent->fields.server->modelindex;
 990         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
 991
 992         flags = 0;
 993         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
 994         glowsize = (unsigned char)bound(0, i, 255);
 995         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
 996                 flags |= RENDER_GLOWTRAIL;
 997         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
 998                 flags |= RENDER_VIEWMODEL;
 999
1000         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
1001         light[0] = (unsigned short)bound(0, f, 65535);
1002         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
1003         light[1] = (unsigned short)bound(0, f, 65535);
1004         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
1005         light[2] = (unsigned short)bound(0, f, 65535);
1006         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1007         light[3] = (unsigned short)bound(0, f, 65535);
1008         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1009         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1010
1011         if (gamemode == GAME_TENEBRAE)
1012         {
1013                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1014                 if (effects & 16)
1015                 {
1016                         effects &= ~16;
1017                         lightpflags |= PFLAGS_FULLDYNAMIC;
1018                 }
1019                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1020                 if (effects & 32)
1021                 {
1022                         effects &= ~32;
1023                         light[0] = (int)(0.2*256);
1024                         light[1] = (int)(1.0*256);
1025                         light[2] = (int)(0.2*256);
1026                         light[3] = 200;
1027                         lightpflags |= PFLAGS_FULLDYNAMIC;
1028                 }
1029         }
1030
1031         specialvisibilityradius = 0;
1032         if (lightpflags & PFLAGS_FULLDYNAMIC)
1033                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1034         if (glowsize)
1035                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1036         if (flags & RENDER_GLOWTRAIL)
1037                 specialvisibilityradius = max(specialvisibilityradius, 100);
1038         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1039         {
1040                 if (effects & EF_BRIGHTFIELD)
1041                         specialvisibilityradius = max(specialvisibilityradius, 80);
1042                 if (effects & EF_MUZZLEFLASH)
1043                         specialvisibilityradius = max(specialvisibilityradius, 100);
1044                 if (effects & EF_BRIGHTLIGHT)
1045                         specialvisibilityradius = max(specialvisibilityradius, 400);
1046                 if (effects & EF_DIMLIGHT)
1047                         specialvisibilityradius = max(specialvisibilityradius, 200);
1048                 if (effects & EF_RED)
1049                         specialvisibilityradius = max(specialvisibilityradius, 200);
1050                 if (effects & EF_BLUE)
1051                         specialvisibilityradius = max(specialvisibilityradius, 200);
1052                 if (effects & EF_FLAME)
1053                         specialvisibilityradius = max(specialvisibilityradius, 250);
1054                 if (effects & EF_STARDUST)
1055                         specialvisibilityradius = max(specialvisibilityradius, 100);
1056         }
1057
1058         // early culling checks
1059         // (final culling is done by SV_MarkWriteEntityStateToClient)
1060         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1061         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1062                 return false;
1063
1064         *cs = defaultstate;
1065         cs->active = true;
1066         cs->number = enumber;
1067         VectorCopy(ent->fields.server->origin, cs->origin);
1068         VectorCopy(ent->fields.server->angles, cs->angles);
1069         cs->flags = flags;
1070         cs->effects = effects;
1071         cs->colormap = (unsigned)ent->fields.server->colormap;
1072         cs->modelindex = modelindex;
1073         cs->skin = (unsigned)ent->fields.server->skin;
1074         cs->frame = (unsigned)ent->fields.server->frame;
1075         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1076         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1077         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1078         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1079         cs->customizeentityforclient = customizeentityforclient;
1080         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1081         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1082         cs->glowsize = glowsize;
1083
1084         // don't need to init cs->colormod because the defaultstate did that for us
1085         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1086         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1087         if (val->vector[0] || val->vector[1] || val->vector[2])
1088         {
1089                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1090                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1091                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1092         }
1093
1094         cs->modelindex = modelindex;
1095
1096         cs->alpha = 255;
1097         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1098         if (f)
1099         {
1100                 i = (int)f;
1101                 cs->alpha = (unsigned char)bound(0, i, 255);
1102         }
1103         // halflife
1104         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1105         if (f)
1106         {
1107                 i = (int)f;
1108                 cs->alpha = (unsigned char)bound(0, i, 255);
1109         }
1110
1111         cs->scale = 16;
1112         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1113         if (f)
1114         {
1115                 i = (int)f;
1116                 cs->scale = (unsigned char)bound(0, i, 255);
1117         }
1118
1119         cs->glowcolor = 254;
1120         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1121         if (f)
1122                 cs->glowcolor = (int)f;
1123
1124         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1125                 cs->effects |= EF_FULLBRIGHT;
1126
1127         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1128         if (val && val->_float)
1129                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1130
1131         if (ent->fields.server->movetype == MOVETYPE_STEP)
1132                 cs->flags |= RENDER_STEP;
1133         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)
1134                 cs->flags |= RENDER_LOWPRECISION;
1135         if (ent->fields.server->colormap >= 1024)
1136                 cs->flags |= RENDER_COLORMAPPED;
1137         if (cs->viewmodelforclient)
1138                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1139
1140         cs->light[0] = light[0];
1141         cs->light[1] = light[1];
1142         cs->light[2] = light[2];
1143         cs->light[3] = light[3];
1144         cs->lightstyle = lightstyle;
1145         cs->lightpflags = lightpflags;
1146
1147         cs->specialvisibilityradius = specialvisibilityradius;
1148
1149         // calculate the visible box of this entity (don't use the physics box
1150         // as that is often smaller than a model, and would not count
1151         // specialvisibilityradius)
1152         if ((model = sv.models[modelindex]) && (model->type != mod_null))
1153         {
1154                 float scale = cs->scale * (1.0f / 16.0f);
1155                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1156                 {
1157                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1158                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1159                 }
1160                 else if (cs->angles[1])
1161                 {
1162                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1163                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1164                 }
1165                 else
1166                 {
1167                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1168                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1169                 }
1170         }
1171         else
1172         {
1173                 // if there is no model (or it could not be loaded), use the physics box
1174                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1175                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1176         }
1177         if (specialvisibilityradius)
1178         {
1179                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1180                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1181                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1182                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1183                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1184                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1185         }
1186
1187         // calculate center of bbox for network prioritization purposes
1188         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1189
1190         // if culling box has moved, update pvs cluster links
1191         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1192         {
1193                 VectorCopy(cullmins, ent->priv.server->cullmins);
1194                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1195                 // a value of -1 for pvs_numclusters indicates that the links are not
1196                 // cached, and should be re-tested each time, this is the case if the
1197                 // culling box touches too many pvs clusters to store, or if the world
1198                 // model does not support FindBoxClusters
1199                 ent->priv.server->pvs_numclusters = -1;
1200                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1201                 {
1202                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1203                         if (i <= MAX_ENTITYCLUSTERS)
1204                                 ent->priv.server->pvs_numclusters = i;
1205                 }
1206         }
1207
1208         // we need to do some csqc entity upkeep here
1209         // get self.SendFlags and clear them
1210         // (to let the QC know that they've been read)
1211         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity);
1212         if (val->function)
1213         {
1214                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1215                 sendflags = (unsigned int)val->_float;
1216                 val->_float = 0;
1217                 // legacy self.Version system
1218                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1219                 if (val2->_float)
1220                 {
1221                         version = (unsigned int)val2->_float;
1222                         if (sv.csqcentityversion[enumber] != version)
1223                                 sendflags = 0xFFFFFF;
1224                         sv.csqcentityversion[enumber] = version;
1225                 }
1226                 // move sendflags into the per-client sendflags
1227                 if (sendflags)
1228                         for (i = 0;i < svs.maxclients;i++)
1229                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1230         }
1231
1232         return true;
1233 }
1234
1235 void SV_PrepareEntitiesForSending(void)
1236 {
1237         int e;
1238         prvm_edict_t *ent;
1239         // send all entities that touch the pvs
1240         sv.numsendentities = 0;
1241         sv.sendentitiesindex[0] = NULL;
1242         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1243         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1244         {
1245                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1246                 {
1247                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1248                         sv.numsendentities++;
1249                 }
1250         }
1251 }
1252
1253 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1254 {
1255         int isbmodel;
1256         dp_model_t *model;
1257         prvm_edict_t *ed;
1258         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1259                 return;
1260         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1261         sv.writeentitiestoclient_stats_totalentities++;
1262
1263         if (s->customizeentityforclient)
1264         {
1265                 prog->globals.server->self = s->number;
1266                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1267                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1268                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1269                         return;
1270         }
1271
1272         // never reject player
1273         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1274         {
1275                 // check various rejection conditions
1276                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1277                         return;
1278                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1279                         return;
1280                 if (s->effects & EF_NODRAW)
1281                         return;
1282                 // LordHavoc: only send entities with a model or important effects
1283                 if (!s->modelindex && s->specialvisibilityradius == 0)
1284                         return;
1285
1286                 isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
1287                 // viewmodels don't have visibility checking
1288                 if (s->viewmodelforclient)
1289                 {
1290                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1291                                 return;
1292                 }
1293                 else if (s->tagentity)
1294                 {
1295                         // tag attached entities simply check their parent
1296                         if (!sv.sendentitiesindex[s->tagentity])
1297                                 return;
1298                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1299                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1300                                 return;
1301                 }
1302                 // always send world submodels in newer protocols because they don't
1303                 // generate much traffic (in old protocols they hog bandwidth)
1304                 // but only if sv_cullentities_nevercullbmodels is off
1305                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1306                 {
1307                         // entity has survived every check so far, check if visible
1308                         ed = PRVM_EDICT_NUM(s->number);
1309
1310                         // if not touching a visible leaf
1311                         if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
1312                         {
1313                                 if (ed->priv.server->pvs_numclusters < 0)
1314                                 {
1315                                         // entity too big for clusters list
1316                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1317                                         {
1318                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1319                                                 return;
1320                                         }
1321                                 }
1322                                 else
1323                                 {
1324                                         int i;
1325                                         // check cached clusters list
1326                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1327                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1328                                                         break;
1329                                         if (i == ed->priv.server->pvs_numclusters)
1330                                         {
1331                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1332                                                 return;
1333                                         }
1334                                 }
1335                         }
1336
1337                         // or not seen by random tracelines
1338                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1339                         {
1340                                 int samples =
1341                                         s->number <= svs.maxclients
1342                                                 ? sv_cullentities_trace_samples_players.integer
1343                                                 :
1344                                         s->specialvisibilityradius
1345                                                 ? sv_cullentities_trace_samples_extra.integer
1346                                                 : sv_cullentities_trace_samples.integer;
1347                                 float enlarge = sv_cullentities_trace_enlarge.value;
1348
1349                                 qboolean visible = TRUE;
1350
1351                                 if(samples > 0)
1352                                 {
1353                                         do
1354                                         {
1355                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1356                                                         break; // directly visible from the server's view
1357
1358                                                 if(sv_cullentities_trace_prediction.integer)
1359                                                 {
1360                                                         vec3_t predeye;
1361
1362                                                         // get player velocity
1363                                                         float predtime = bound(0, host_client->ping, 0.2); // / 2
1364                                                                 // sorry, no wallhacking by high ping please, and at 200ms
1365                                                                 // ping a FPS is annoying to play anyway and a player is
1366                                                                 // likely to have changed his direction
1367                                                         VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
1368                                                         if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
1369                                                         {
1370                                                                 if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1371                                                                         break; // directly visible from the predicted view
1372                                                         }
1373                                                         else
1374                                                         {
1375                                                                 //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1376                                                         }
1377                                                 }
1378
1379                                                 // when we get here, we can't see the entity
1380                                                 visible = false;
1381                                         }
1382                                         while(0);
1383
1384                                         if(visible)
1385                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1386                                                         realtime + (
1387                                                                 s->number <= svs.maxclients
1388                                                                         ? sv_cullentities_trace_delay_players.value
1389                                                                         : sv_cullentities_trace_delay.value
1390                                                         );
1391                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1392                                         {
1393                                                 sv.writeentitiestoclient_stats_culled_trace++;
1394                                                 return;
1395                                         }
1396                                 }
1397                         }
1398                 }
1399         }
1400
1401         // this just marks it for sending
1402         // FIXME: it would be more efficient to send here, but the entity
1403         // compressor isn't that flexible
1404         sv.writeentitiestoclient_stats_visibleentities++;
1405         sv.sententities[s->number] = sv.sententitiesmark;
1406 }
1407
1408 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1409 {
1410         qboolean need_empty = false;
1411         int i, numsendstates;
1412         entity_state_t *s;
1413         prvm_edict_t *camera;
1414
1415         // if there isn't enough space to accomplish anything, skip it
1416         if (msg->cursize + 25 > maxsize)
1417                 return;
1418
1419         sv.writeentitiestoclient_msg = msg;
1420         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1421
1422         sv.writeentitiestoclient_stats_culled_pvs = 0;
1423         sv.writeentitiestoclient_stats_culled_trace = 0;
1424         sv.writeentitiestoclient_stats_visibleentities = 0;
1425         sv.writeentitiestoclient_stats_totalentities = 0;
1426
1427 // find the client's PVS
1428         // the real place being tested from
1429         camera = PRVM_EDICT_NUM( client->clientcamera );
1430         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
1431         sv.writeentitiestoclient_pvsbytes = 0;
1432         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1433                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
1434
1435         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1436
1437         sv.sententitiesmark++;
1438
1439         for (i = 0;i < sv.numsendentities;i++)
1440                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1441
1442         numsendstates = 0;
1443         for (i = 0;i < sv.numsendentities;i++)
1444         {
1445                 if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
1446                 {
1447                         s = &sv.writeentitiestoclient_sendstates[numsendstates++];
1448                         *s = sv.sendentities[i];
1449                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1450                                 s->flags |= RENDER_EXTERIORMODEL;
1451                 }
1452         }
1453
1454         if (sv_cullentities_stats.integer)
1455                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d trace\n", client->name, sv.writeentitiestoclient_stats_totalentities, sv.writeentitiestoclient_stats_visibleentities, sv.writeentitiestoclient_stats_culled_pvs + sv.writeentitiestoclient_stats_culled_trace, sv.writeentitiestoclient_stats_culled_pvs, sv.writeentitiestoclient_stats_culled_trace);
1456
1457         if(client->entitydatabase5)
1458                 need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, client->entitydatabase5->latestframenum + 1);
1459         else
1460                 EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, 0);
1461
1462         if (client->entitydatabase5)
1463                 EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
1464         else if (client->entitydatabase4)
1465         {
1466                 EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1467                 Protocol_WriteStatsReliable();
1468         }
1469         else if (client->entitydatabase)
1470         {
1471                 EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1472                 Protocol_WriteStatsReliable();
1473         }
1474         else
1475         {
1476                 EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1477                 Protocol_WriteStatsReliable();
1478         }
1479 }
1480
1481 /*
1482 =============
1483 SV_CleanupEnts
1484
1485 =============
1486 */
1487 static void SV_CleanupEnts (void)
1488 {
1489         int             e;
1490         prvm_edict_t    *ent;
1491
1492         ent = PRVM_NEXT_EDICT(prog->edicts);
1493         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1494                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1495 }
1496
1497 /*
1498 ==================
1499 SV_WriteClientdataToMessage
1500
1501 ==================
1502 */
1503 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1504 {
1505         int             bits;
1506         int             i;
1507         prvm_edict_t    *other;
1508         int             items;
1509         prvm_eval_t     *val;
1510         vec3_t  punchvector;
1511         int             viewzoom;
1512         const char *s;
1513         float   *statsf = (float *)stats;
1514
1515 //
1516 // send a damage message
1517 //
1518         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1519         {
1520                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1521                 MSG_WriteByte (msg, svc_damage);
1522                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1523                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1524                 for (i=0 ; i<3 ; i++)
1525                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1526
1527                 ent->fields.server->dmg_take = 0;
1528                 ent->fields.server->dmg_save = 0;
1529         }
1530
1531 //
1532 // send the current viewpos offset from the view entity
1533 //
1534         SV_SetIdealPitch ();            // how much to look up / down ideally
1535
1536 // a fixangle might get lost in a dropped packet.  Oh well.
1537         if(ent->fields.server->fixangle)
1538         {
1539                 // angle fixing was requested by global thinking code...
1540                 // so store the current angles for later use
1541                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1542                 host_client->fixangle_angles_set = TRUE;
1543
1544                 // and clear fixangle for the next frame
1545                 ent->fields.server->fixangle = 0;
1546         }
1547
1548         if (host_client->fixangle_angles_set)
1549         {
1550                 MSG_WriteByte (msg, svc_setangle);
1551                 for (i=0 ; i < 3 ; i++)
1552                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1553                 host_client->fixangle_angles_set = FALSE;
1554         }
1555
1556         // stuff the sigil bits into the high bits of items for sbar, or else
1557         // mix in items2
1558         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1559         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1560                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1561         else
1562                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1563
1564         VectorClear(punchvector);
1565         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1566                 VectorCopy(val->vector, punchvector);
1567
1568         // cache weapon model name and index in client struct to save time
1569         // (this search can be almost 1% of cpu time!)
1570         s = PRVM_GetString(ent->fields.server->weaponmodel);
1571         if (strcmp(s, client->weaponmodel))
1572         {
1573                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1574                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1575         }
1576
1577         viewzoom = 255;
1578         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1579                 viewzoom = (int)(val->_float * 255.0f);
1580         if (viewzoom == 0)
1581                 viewzoom = 255;
1582
1583         bits = 0;
1584
1585         if ((int)ent->fields.server->flags & FL_ONGROUND)
1586                 bits |= SU_ONGROUND;
1587         if (ent->fields.server->waterlevel >= 2)
1588                 bits |= SU_INWATER;
1589         if (ent->fields.server->idealpitch)
1590                 bits |= SU_IDEALPITCH;
1591
1592         for (i=0 ; i<3 ; i++)
1593         {
1594                 if (ent->fields.server->punchangle[i])
1595                         bits |= (SU_PUNCH1<<i);
1596                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
1597                         if (punchvector[i])
1598                                 bits |= (SU_PUNCHVEC1<<i);
1599                 if (ent->fields.server->velocity[i])
1600                         bits |= (SU_VELOCITY1<<i);
1601         }
1602
1603         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1604         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1605         stats[STAT_ITEMS] = items;
1606         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1607         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1608         stats[STAT_WEAPON] = client->weaponmodelindex;
1609         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1610         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1611         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1612         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1613         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1614         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1615         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1616         stats[STAT_VIEWZOOM] = viewzoom;
1617         stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
1618         stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
1619         // the QC bumps these itself by sending svc_'s, so we have to keep them
1620         // zero or they'll be corrected by the engine
1621         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1622         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1623
1624         // movement settings for prediction
1625         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1626         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1627         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1628         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1629         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1630         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1631         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1632         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1633         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1634         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1635         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1636         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1637         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1638         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1639         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1640         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1641         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1642         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1643         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1644         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1645         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1646         statsf[STAT_TIMELIMIT] = timelimit.value;
1647
1648         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1649         {
1650                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1651                 bits |= SU_ITEMS;
1652                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1653                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1654                 bits |= SU_WEAPON;
1655                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1656                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1657                         if (viewzoom != 255)
1658                                 bits |= SU_VIEWZOOM;
1659         }
1660
1661         if (bits >= 65536)
1662                 bits |= SU_EXTEND1;
1663         if (bits >= 16777216)
1664                 bits |= SU_EXTEND2;
1665
1666         // send the data
1667         MSG_WriteByte (msg, svc_clientdata);
1668         MSG_WriteShort (msg, bits);
1669         if (bits & SU_EXTEND1)
1670                 MSG_WriteByte(msg, bits >> 16);
1671         if (bits & SU_EXTEND2)
1672                 MSG_WriteByte(msg, bits >> 24);
1673
1674         if (bits & SU_VIEWHEIGHT)
1675                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1676
1677         if (bits & SU_IDEALPITCH)
1678                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1679
1680         for (i=0 ; i<3 ; i++)
1681         {
1682                 if (bits & (SU_PUNCH1<<i))
1683                 {
1684                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1685                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1686                         else
1687                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1688                 }
1689                 if (bits & (SU_PUNCHVEC1<<i))
1690                 {
1691                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1692                                 MSG_WriteCoord16i(msg, punchvector[i]);
1693                         else
1694                                 MSG_WriteCoord32f(msg, punchvector[i]);
1695                 }
1696                 if (bits & (SU_VELOCITY1<<i))
1697                 {
1698                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1699                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1700                         else
1701                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1702                 }
1703         }
1704
1705         if (bits & SU_ITEMS)
1706                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1707
1708         if (sv.protocol == PROTOCOL_DARKPLACES5)
1709         {
1710                 if (bits & SU_WEAPONFRAME)
1711                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1712                 if (bits & SU_ARMOR)
1713                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1714                 if (bits & SU_WEAPON)
1715                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1716                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1717                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1718                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1719                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1720                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1721                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1722                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1723                 if (bits & SU_VIEWZOOM)
1724                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1725         }
1726         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1727         {
1728                 if (bits & SU_WEAPONFRAME)
1729                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1730                 if (bits & SU_ARMOR)
1731                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1732                 if (bits & SU_WEAPON)
1733                 {
1734                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
1735                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
1736                         else
1737                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
1738                 }
1739                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1740                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1741                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1742                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1743                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1744                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1745                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1746                 {
1747                         for (i = 0;i < 32;i++)
1748                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
1749                                         break;
1750                         MSG_WriteByte (msg, i);
1751                 }
1752                 else
1753                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
1754                 if (bits & SU_VIEWZOOM)
1755                 {
1756                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1757                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1758                         else
1759                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1760                 }
1761         }
1762 }
1763
1764 void SV_FlushBroadcastMessages(void)
1765 {
1766         int i;
1767         client_t *client;
1768         if (sv.datagram.cursize <= 0)
1769                 return;
1770         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1771         {
1772                 if (!client->spawned || !client->netconnection || client->unreliablemsg.cursize + sv.datagram.cursize > client->unreliablemsg.maxsize || client->unreliablemsg_splitpoints >= (int)(sizeof(client->unreliablemsg_splitpoint)/sizeof(client->unreliablemsg_splitpoint[0])))
1773                         continue;
1774                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1775                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1776         }
1777         SZ_Clear(&sv.datagram);
1778 }
1779
1780 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize)
1781 {
1782         // scan the splitpoints to find out how many we can fit in
1783         int numsegments, j, split;
1784         if (!client->unreliablemsg_splitpoints)
1785                 return;
1786         // always accept the first one if it's within 1024 bytes, this ensures
1787         // that very big datagrams which are over the rate limit still get
1788         // through, just to keep it working
1789         j = msg->cursize + client->unreliablemsg_splitpoint[0];
1790         if (maxsize < 1024 && j > maxsize && j <= 1024)
1791         {
1792                 numsegments = 1;
1793                 maxsize = 1024;
1794         }
1795         else
1796                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1797                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
1798                                 break;
1799         if (numsegments > 0)
1800         {
1801                 // some will fit, so add the ones that will fit
1802                 split = client->unreliablemsg_splitpoint[numsegments-1];
1803                 // note this discards ones that were accepted by the segments scan but
1804                 // can not fit, such as a really huge first one that will never ever
1805                 // fit in a packet...
1806                 if (msg->cursize + split <= maxsize)
1807                         SZ_Write(msg, client->unreliablemsg.data, split);
1808                 // remove the part we sent, keeping any remaining data
1809                 client->unreliablemsg.cursize -= split;
1810                 if (client->unreliablemsg.cursize > 0)
1811                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1812                 // adjust remaining splitpoints
1813                 client->unreliablemsg_splitpoints -= numsegments;
1814                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1815                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1816         }
1817 }
1818
1819 /*
1820 =======================
1821 SV_SendClientDatagram
1822 =======================
1823 */
1824 static void SV_SendClientDatagram (client_t *client)
1825 {
1826         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1827         sizebuf_t msg;
1828         int stats[MAX_CL_STATS];
1829         unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
1830
1831         // obey rate limit by limiting packet frequency if the packet size
1832         // limiting fails
1833         // (usually this is caused by reliable messages)
1834         if (!NetConn_CanSend(client->netconnection))
1835                 return;
1836
1837         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1838         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1839         if (sv_maxrate.integer != maxrate)
1840                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1841
1842         // clientrate determines the 'cleartime' of a packet
1843         // (how long to wait before sending another, based on this packet's size)
1844         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1845
1846         switch (sv.protocol)
1847         {
1848         case PROTOCOL_QUAKE:
1849         case PROTOCOL_QUAKEDP:
1850         case PROTOCOL_NEHAHRAMOVIE:
1851         case PROTOCOL_NEHAHRABJP:
1852         case PROTOCOL_NEHAHRABJP2:
1853         case PROTOCOL_NEHAHRABJP3:
1854         case PROTOCOL_QUAKEWORLD:
1855                 // no packet size limit support on Quake protocols because it just
1856                 // causes missing entities/effects
1857                 // packets are simply sent less often to obey the rate limit
1858                 maxsize = 1024;
1859                 maxsize2 = 1024;
1860                 break;
1861         case PROTOCOL_DARKPLACES1:
1862         case PROTOCOL_DARKPLACES2:
1863         case PROTOCOL_DARKPLACES3:
1864         case PROTOCOL_DARKPLACES4:
1865                 // no packet size limit support on DP1-4 protocols because they kick
1866                 // the client off if they overflow, and miss effects
1867                 // packets are simply sent less often to obey the rate limit
1868                 maxsize = sizeof(sv_sendclientdatagram_buf);
1869                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1870                 break;
1871         default:
1872                 // DP5 and later protocols support packet size limiting which is a
1873                 // better method than limiting packet frequency as QW does
1874                 //
1875                 // at very low rates (or very small sys_ticrate) the packet size is
1876                 // not reduced below 128, but packets may be sent less often
1877                 maxsize = (int)(clientrate * sys_ticrate.value);
1878                 maxsize = bound(128, maxsize, 1400);
1879                 maxsize2 = 1400;
1880                 // csqc entities can easily exceed 128 bytes, so disable throttling in
1881                 // mods that use csqc (they are likely to use less bandwidth anyway)
1882                 if (sv.csqc_progsize > 0)
1883                         maxsize = maxsize2;
1884                 break;
1885         }
1886
1887         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1888         {
1889                 // for good singleplayer, send huge packets
1890                 maxsize = sizeof(sv_sendclientdatagram_buf);
1891                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1892                 // never limit frequency in singleplayer
1893                 clientrate = 1000000000;
1894         }
1895
1896         // while downloading, limit entity updates to half the packet
1897         // (any leftover space will be used for downloading)
1898         if (host_client->download_file)
1899                 maxsize /= 2;
1900
1901         msg.data = sv_sendclientdatagram_buf;
1902         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1903         msg.cursize = 0;
1904         msg.allowoverflow = false;
1905
1906         if (host_client->spawned)
1907         {
1908                 // the player is in the game
1909                 MSG_WriteByte (&msg, svc_time);
1910                 MSG_WriteFloat (&msg, sv.time);
1911
1912                 // add the client specific data to the datagram
1913                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1914                 // now update the stats[] array using any registered custom fields
1915                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1916                 // set host_client->statsdeltabits
1917                 Protocol_UpdateClientStats (stats);
1918
1919                 // add as many queued unreliable messages (effects) as we can fit
1920                 // limit effects to half of the remaining space
1921                 if (client->unreliablemsg.cursize)
1922                         SV_WriteUnreliableMessages (client, &msg, (msg.cursize + maxsize) / 2);
1923
1924                 // now write as many entities as we can fit, and also sends stats
1925                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
1926         }
1927         else if (realtime > client->keepalivetime)
1928         {
1929                 // the player isn't totally in the game yet
1930                 // send small keepalive messages if too much time has passed
1931                 // (may also be sending downloads)
1932                 client->keepalivetime = realtime + 5;
1933                 MSG_WriteChar (&msg, svc_nop);
1934         }
1935
1936         // if a download is active, see if there is room to fit some download data
1937         // in this packet
1938         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
1939         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1940         {
1941                 fs_offset_t downloadstart;
1942                 unsigned char data[1400];
1943                 downloadstart = FS_Tell(host_client->download_file);
1944                 downloadsize = min(downloadsize, (int)sizeof(data));
1945                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1946                 // note this sends empty messages if at the end of the file, which is
1947                 // necessary to keep the packet loss logic working
1948                 // (the last blocks may be lost and need to be re-sent, and that will
1949                 //  only occur if the client acks the empty end messages, revealing
1950                 //  a gap in the download progress, causing the last blocks to be
1951                 //  sent again)
1952                 MSG_WriteChar (&msg, svc_downloaddata);
1953                 MSG_WriteLong (&msg, downloadstart);
1954                 MSG_WriteShort (&msg, downloadsize);
1955                 if (downloadsize > 0)
1956                         SZ_Write (&msg, data, downloadsize);
1957         }
1958
1959         // reliable only if none is in progress
1960         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
1961                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
1962         // unreliable
1963         SV_WriteDemoMessage(client, &msg, false);
1964
1965 // send the datagram
1966         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
1967         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
1968                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
1969 }
1970
1971 /*
1972 =======================
1973 SV_UpdateToReliableMessages
1974 =======================
1975 */
1976 static void SV_UpdateToReliableMessages (void)
1977 {
1978         int i, j;
1979         client_t *client;
1980         prvm_eval_t *val;
1981         const char *name;
1982         const char *model;
1983         const char *skin;
1984
1985 // check for changes to be sent over the reliable streams
1986         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1987         {
1988                 // update the host_client fields we care about according to the entity fields
1989                 host_client->edict = PRVM_EDICT_NUM(i+1);
1990
1991                 // DP_SV_CLIENTNAME
1992                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1993                 if (name == NULL)
1994                         name = "";
1995                 // always point the string back at host_client->name to keep it safe
1996                 strlcpy (host_client->name, name, sizeof (host_client->name));
1997                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1998                 if (strcmp(host_client->old_name, host_client->name))
1999                 {
2000                         if (host_client->spawned)
2001                                 SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
2002                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
2003                         // send notification to all clients
2004                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
2005                         MSG_WriteByte (&sv.reliable_datagram, i);
2006                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
2007                         SV_WriteNetnameIntoDemo(host_client);
2008                 }
2009
2010                 // DP_SV_CLIENTCOLORS
2011                 // this is always found (since it's added by the progs loader)
2012                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2013                         host_client->colors = (int)val->_float;
2014                 if (host_client->old_colors != host_client->colors)
2015                 {
2016                         host_client->old_colors = host_client->colors;
2017                         // send notification to all clients
2018                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2019                         MSG_WriteByte (&sv.reliable_datagram, i);
2020                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2021                 }
2022
2023                 // NEXUIZ_PLAYERMODEL
2024                 if( prog->fieldoffsets.playermodel >= 0 ) {
2025                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2026                         if (model == NULL)
2027                                 model = "";
2028                         // always point the string back at host_client->name to keep it safe
2029                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2030                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2031                 }
2032
2033                 // NEXUIZ_PLAYERSKIN
2034                 if( prog->fieldoffsets.playerskin >= 0 ) {
2035                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2036                         if (skin == NULL)
2037                                 skin = "";
2038                         // always point the string back at host_client->name to keep it safe
2039                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2040                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2041                 }
2042
2043                 // TODO: add an extension name for this [1/17/2008 Black]
2044                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2045                         int oldclientcamera = host_client->clientcamera;
2046                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2047                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2048                         } else {
2049                                 host_client->clientcamera = val->edict;
2050                         }
2051
2052                         if( oldclientcamera != host_client->clientcamera ) {
2053                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
2054                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2055                         }
2056                 }
2057
2058                 // frags
2059                 host_client->frags = (int)host_client->edict->fields.server->frags;
2060                 if(gamemode == GAME_NEXUIZ)
2061                         if(!host_client->spawned && host_client->netconnection)
2062                                 host_client->frags = -666;
2063                 if (host_client->old_frags != host_client->frags)
2064                 {
2065                         host_client->old_frags = host_client->frags;
2066                         // send notification to all clients
2067                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2068                         MSG_WriteByte (&sv.reliable_datagram, i);
2069                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2070                 }
2071         }
2072
2073         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2074                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2075                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2076
2077         SZ_Clear (&sv.reliable_datagram);
2078 }
2079
2080
2081 /*
2082 =======================
2083 SV_SendClientMessages
2084 =======================
2085 */
2086 void SV_SendClientMessages (void)
2087 {
2088         int i, prepared = false;
2089
2090         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2091                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2092
2093         SV_FlushBroadcastMessages();
2094
2095 // update frags, names, etc
2096         SV_UpdateToReliableMessages();
2097
2098 // build individual updates
2099         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2100         {
2101                 if (!host_client->active)
2102                         continue;
2103                 if (!host_client->netconnection)
2104                         continue;
2105
2106                 if (host_client->netconnection->message.overflowed)
2107                 {
2108                         SV_DropClient (true);   // if the message couldn't send, kick off
2109                         continue;
2110                 }
2111
2112                 if (!prepared)
2113                 {
2114                         prepared = true;
2115                         // only prepare entities once per frame
2116                         SV_PrepareEntitiesForSending();
2117                 }
2118                 SV_SendClientDatagram (host_client);
2119         }
2120
2121 // clear muzzle flashes
2122         SV_CleanupEnts();
2123 }
2124
2125 static void SV_StartDownload_f(void)
2126 {
2127         if (host_client->download_file)
2128                 host_client->download_started = true;
2129 }
2130
2131 /*
2132  * Compression extension negotiation:
2133  *
2134  * Server to client:
2135  *   cl_serverextension_download 2
2136  *
2137  * Client to server:
2138  *   download <filename> <list of zero or more suppported compressions in order of preference>
2139  * e.g.
2140  *   download maps/map1.bsp lzo deflate huffman
2141  *
2142  * Server to client:
2143  *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
2144  * e.g.
2145  *   cl_downloadbegin 123456 maps/map1.bsp deflate
2146  *
2147  * The server may choose not to compress the file by sending no compression name, like:
2148  *   cl_downloadbegin 345678 maps/map1.bsp
2149  *
2150  * NOTE: the "download" command may only specify compression algorithms if
2151  *       cl_serverextension_download is 2!
2152  *       If cl_serverextension_download has a different value, the client must
2153  *       assume this extension is not supported!
2154  */
2155
2156 static void Download_CheckExtensions(void)
2157 {
2158         int i;
2159         int argc = Cmd_Argc();
2160
2161         // first reset them all
2162         host_client->download_deflate = false;
2163
2164         for(i = 2; i < argc; ++i)
2165         {
2166                 if(!strcmp(Cmd_Argv(i), "deflate"))
2167                 {
2168                         host_client->download_deflate = true;
2169                         break;
2170                 }
2171         }
2172 }
2173
2174 static void SV_Download_f(void)
2175 {
2176         const char *whichpack, *whichpack2, *extension;
2177         qboolean is_csqc; // so we need to check only once
2178
2179         if (Cmd_Argc() < 2)
2180         {
2181                 SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
2182                 SV_ClientPrintf("       supported extensions: deflate\n");
2183                 return;
2184         }
2185
2186         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2187         {
2188                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2189                 return;
2190         }
2191
2192         if (host_client->download_file)
2193         {
2194                 // at this point we'll assume the previous download should be aborted
2195                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2196                 Host_ClientCommands("\nstopdownload\n");
2197
2198                 // close the file and reset variables
2199                 FS_Close(host_client->download_file);
2200                 host_client->download_file = NULL;
2201                 host_client->download_name[0] = 0;
2202                 host_client->download_expectedposition = 0;
2203                 host_client->download_started = false;
2204         }
2205
2206         is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
2207
2208         if (!sv_allowdownloads.integer && !is_csqc)
2209         {
2210                 SV_ClientPrintf("Downloads are disabled on this server\n");
2211                 Host_ClientCommands("\nstopdownload\n");
2212                 return;
2213         }
2214
2215         Download_CheckExtensions();
2216
2217         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2218         extension = FS_FileExtension(host_client->download_name);
2219
2220         // host_client is asking to download a specified file
2221         if (developer.integer >= 100)
2222                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2223
2224         if(is_csqc)
2225         {
2226                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2227                 extensions[0] = '\0';
2228
2229                 if(host_client->download_deflate)
2230                         strlcat(extensions, " deflate", sizeof(extensions));
2231
2232                 Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2233
2234                 if(host_client->download_deflate)
2235                         host_client->download_file = FS_FileFromData(sv.csqc_progdata_deflated, sv.csqc_progsize_deflated, true);
2236                 else
2237                         host_client->download_file = FS_FileFromData(sv.csqc_progdata, sv.csqc_progsize, true);
2238
2239                 // no, no space is needed between %s and %s :P
2240                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2241
2242                 host_client->download_expectedposition = 0;
2243                 host_client->download_started = false;
2244                 host_client->sendsignon = true; // make sure this message is sent
2245                 return;
2246         }
2247
2248         if (!FS_FileExists(host_client->download_name))
2249         {
2250                 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);
2251                 Host_ClientCommands("\nstopdownload\n");
2252                 return;
2253         }
2254
2255         // check if the user is trying to download part of registered Quake(r)
2256         whichpack = FS_WhichPack(host_client->download_name);
2257         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2258         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2259         {
2260                 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);
2261                 Host_ClientCommands("\nstopdownload\n");
2262                 return;
2263         }
2264
2265         // check if the server has forbidden archive downloads entirely
2266         if (!sv_allowdownloads_inarchive.integer)
2267         {
2268                 whichpack = FS_WhichPack(host_client->download_name);
2269                 if (whichpack)
2270                 {
2271                         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);
2272                         Host_ClientCommands("\nstopdownload\n");
2273                         return;
2274                 }
2275         }
2276
2277         if (!sv_allowdownloads_config.integer)
2278         {
2279                 if (!strcasecmp(extension, "cfg"))
2280                 {
2281                         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);
2282                         Host_ClientCommands("\nstopdownload\n");
2283                         return;
2284                 }
2285         }
2286
2287         if (!sv_allowdownloads_dlcache.integer)
2288         {
2289                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2290                 {
2291                         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);
2292                         Host_ClientCommands("\nstopdownload\n");
2293                         return;
2294                 }
2295         }
2296
2297         if (!sv_allowdownloads_archive.integer)
2298         {
2299                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2300                 {
2301                         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);
2302                         Host_ClientCommands("\nstopdownload\n");
2303                         return;
2304                 }
2305         }
2306
2307         host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
2308         if (!host_client->download_file)
2309         {
2310                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2311                 Host_ClientCommands("\nstopdownload\n");
2312                 return;
2313         }
2314
2315         if (FS_FileSize(host_client->download_file) > 1<<30)
2316         {
2317                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2318                 Host_ClientCommands("\nstopdownload\n");
2319                 FS_Close(host_client->download_file);
2320                 host_client->download_file = NULL;
2321                 return;
2322         }
2323
2324         if (FS_FileSize(host_client->download_file) < 0)
2325         {
2326                 SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
2327                 Host_ClientCommands("\nstopdownload\n");
2328                 FS_Close(host_client->download_file);
2329                 host_client->download_file = NULL;
2330                 return;
2331         }
2332
2333         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2334
2335         /*
2336          * we can only do this if we would actually deflate on the fly
2337          * which we do not (yet)!
2338         {
2339                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2340                 extensions[0] = '\0';
2341
2342                 if(host_client->download_deflate)
2343                         strlcat(extensions, " deflate", sizeof(extensions));
2344
2345                 // no, no space is needed between %s and %s :P
2346                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2347         }
2348         */
2349         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2350
2351         host_client->download_expectedposition = 0;
2352         host_client->download_started = false;
2353         host_client->sendsignon = true; // make sure this message is sent
2354
2355         // the rest of the download process is handled in SV_SendClientDatagram
2356         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2357         //
2358         // no svc_downloaddata messages will be sent until sv_startdownload is
2359         // sent by the client
2360 }
2361
2362 /*
2363 ==============================================================================
2364
2365 SERVER SPAWNING
2366
2367 ==============================================================================
2368 */
2369
2370 /*
2371 ================
2372 SV_ModelIndex
2373
2374 ================
2375 */
2376 int SV_ModelIndex(const char *s, int precachemode)
2377 {
2378         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);
2379         char filename[MAX_QPATH];
2380         if (!s || !*s)
2381                 return 0;
2382         // testing
2383         //if (precachemode == 2)
2384         //      return 0;
2385         strlcpy(filename, s, sizeof(filename));
2386         for (i = 2;i < limit;i++)
2387         {
2388                 if (!sv.model_precache[i][0])
2389                 {
2390                         if (precachemode)
2391                         {
2392                                 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))
2393                                 {
2394                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2395                                         return 0;
2396                                 }
2397                                 if (precachemode == 1)
2398                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2399                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2400                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
2401                                 if (sv.state != ss_loading)
2402                                 {
2403                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2404                                         MSG_WriteShort(&sv.reliable_datagram, i);
2405                                         MSG_WriteString(&sv.reliable_datagram, filename);
2406                                 }
2407                                 return i;
2408                         }
2409                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2410                         return 0;
2411                 }
2412                 if (!strcmp(sv.model_precache[i], filename))
2413                         return i;
2414         }
2415         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2416         return 0;
2417 }
2418
2419 /*
2420 ================
2421 SV_SoundIndex
2422
2423 ================
2424 */
2425 int SV_SoundIndex(const char *s, int precachemode)
2426 {
2427         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);
2428         char filename[MAX_QPATH];
2429         if (!s || !*s)
2430                 return 0;
2431         // testing
2432         //if (precachemode == 2)
2433         //      return 0;
2434         strlcpy(filename, s, sizeof(filename));
2435         for (i = 1;i < limit;i++)
2436         {
2437                 if (!sv.sound_precache[i][0])
2438                 {
2439                         if (precachemode)
2440                         {
2441                                 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))
2442                                 {
2443                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2444                                         return 0;
2445                                 }
2446                                 if (precachemode == 1)
2447                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2448                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2449                                 if (sv.state != ss_loading)
2450                                 {
2451                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2452                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2453                                         MSG_WriteString(&sv.reliable_datagram, filename);
2454                                 }
2455                                 return i;
2456                         }
2457                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2458                         return 0;
2459                 }
2460                 if (!strcmp(sv.sound_precache[i], filename))
2461                         return i;
2462         }
2463         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2464         return 0;
2465 }
2466
2467 /*
2468 ================
2469 SV_ParticleEffectIndex
2470
2471 ================
2472 */
2473 int SV_ParticleEffectIndex(const char *name)
2474 {
2475         int i, argc, linenumber, effectnameindex;
2476         fs_offset_t filesize;
2477         unsigned char *filedata;
2478         const char *text, *textstart, *textend;
2479         char argv[16][1024];
2480         if (!sv.particleeffectnamesloaded)
2481         {
2482                 sv.particleeffectnamesloaded = true;
2483                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2484                 for (i = 0;i < EFFECT_TOTAL;i++)
2485                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2486                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
2487                 if (filedata)
2488                 {
2489                         textstart = (const char *)filedata;
2490                         textend = (const char *)filedata + filesize;
2491                         text = textstart;
2492                         for (linenumber = 1;;linenumber++)
2493                         {
2494                                 argc = 0;
2495                                 for (;;)
2496                                 {
2497                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2498                                                 break;
2499                                         if (argc < 16)
2500                                         {
2501                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2502                                                 argc++;
2503                                         }
2504                                 }
2505                                 if (com_token[0] == 0)
2506                                         break; // if the loop exited and it's not a \n, it's EOF
2507                                 if (argc < 1)
2508                                         continue;
2509                                 if (!strcmp(argv[0], "effect"))
2510                                 {
2511                                         if (argc == 2)
2512                                         {
2513                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2514                                                 {
2515                                                         if (sv.particleeffectname[effectnameindex][0])
2516                                                         {
2517                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2518                                                                         break;
2519                                                         }
2520                                                         else
2521                                                         {
2522                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2523                                                                 break;
2524                                                         }
2525                                                 }
2526                                                 // if we run out of names, abort
2527                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2528                                                 {
2529                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
2530                                                         break;
2531                                                 }
2532                                         }
2533                                 }
2534                         }
2535                         Mem_Free(filedata);
2536                 }
2537         }
2538         // search for the name
2539         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2540                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2541                         return effectnameindex;
2542         // return 0 if we couldn't find it
2543         return 0;
2544 }
2545
2546 /*
2547 ================
2548 SV_CreateBaseline
2549
2550 ================
2551 */
2552 static void SV_CreateBaseline (void)
2553 {
2554         int i, entnum, large;
2555         prvm_edict_t *svent;
2556
2557         // LordHavoc: clear *all* states (note just active ones)
2558         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2559         {
2560                 // get the current server version
2561                 svent = PRVM_EDICT_NUM(entnum);
2562
2563                 // LordHavoc: always clear state values, whether the entity is in use or not
2564                 svent->priv.server->baseline = defaultstate;
2565
2566                 if (svent->priv.server->free)
2567                         continue;
2568                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2569                         continue;
2570
2571                 // create entity baseline
2572                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2573                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2574                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2575                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2576                 if (entnum > 0 && entnum <= svs.maxclients)
2577                 {
2578                         svent->priv.server->baseline.colormap = entnum;
2579                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2580                 }
2581                 else
2582                 {
2583                         svent->priv.server->baseline.colormap = 0;
2584                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2585                 }
2586
2587                 large = false;
2588                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2589                 {
2590                         large = true;
2591                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2592                                 large = false;
2593                 }
2594
2595                 // add to the message
2596                 if (large)
2597                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2598                 else
2599                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2600                 MSG_WriteShort (&sv.signon, entnum);
2601
2602                 if (large)
2603                 {
2604                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2605                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2606                 }
2607                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2608                 {
2609                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2610                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2611                 }
2612                 else
2613                 {
2614                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2615                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2616                 }
2617                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2618                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2619                 for (i=0 ; i<3 ; i++)
2620                 {
2621                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2622                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2623                 }
2624         }
2625 }
2626
2627 /*
2628 ================
2629 SV_Prepare_CSQC
2630
2631 Load csprogs.dat and comperss it so it doesn't need to be
2632 reloaded on request.
2633 ================
2634 */
2635 void SV_Prepare_CSQC(void)
2636 {
2637         fs_offset_t progsize;
2638
2639         if(sv.csqc_progdata)
2640         {
2641                 Con_DPrintf("Unloading old CSQC data.\n");
2642                 Mem_Free(sv.csqc_progdata);
2643                 if(sv.csqc_progdata_deflated)
2644                         Mem_Free(sv.csqc_progdata_deflated);
2645         }
2646
2647         sv.csqc_progdata = NULL;
2648         sv.csqc_progdata_deflated = NULL;
2649
2650         Con_Print("Loading csprogs.dat\n");
2651
2652         sv.csqc_progname[0] = 0;
2653         sv.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
2654
2655         if(progsize > 0)
2656         {
2657                 size_t deflated_size;
2658
2659                 sv.csqc_progsize = (int)progsize;
2660                 sv.csqc_progcrc = CRC_Block(sv.csqc_progdata, progsize);
2661                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2662                 Con_Printf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2663
2664                 Con_Print("Compressing csprogs.dat\n");
2665                 //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
2666                 sv.csqc_progdata_deflated = FS_Deflate(sv.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
2667                 sv.csqc_progsize_deflated = (int)deflated_size;
2668                 Con_Printf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
2669                 Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)sv.csqc_progsize_deflated);
2670         }
2671 }
2672
2673 /*
2674 ================
2675 SV_SaveSpawnparms
2676
2677 Grabs the current state of each client for saving across the
2678 transition to another level
2679 ================
2680 */
2681 void SV_SaveSpawnparms (void)
2682 {
2683         int             i, j;
2684
2685         svs.serverflags = (int)prog->globals.server->serverflags;
2686
2687         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2688         {
2689                 if (!host_client->active)
2690                         continue;
2691
2692         // call the progs to get default spawn parms for the new client
2693                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2694                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2695                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2696                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2697         }
2698 }
2699
2700 /*
2701 ================
2702 SV_/pawnServer
2703
2704 This is called at the start of each level
2705 ================
2706 */
2707
2708 void SV_SpawnServer (const char *server)
2709 {
2710         prvm_edict_t *ent;
2711         int i;
2712         char *entities;
2713         dp_model_t *worldmodel;
2714         char modelname[sizeof(sv.modelname)];
2715
2716         Con_DPrintf("SpawnServer: %s\n", server);
2717
2718         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2719
2720         if (!FS_FileExists(modelname))
2721         {
2722                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
2723                 return;
2724         }
2725
2726         if (cls.state != ca_dedicated)
2727         {
2728                 SCR_BeginLoadingPlaque();
2729                 S_StopAllSounds();
2730         }
2731
2732         if(sv.active)
2733         {
2734                 SV_VM_Begin();
2735                 if(prog->funcoffsets.SV_Shutdown)
2736                 {
2737                         func_t s = prog->funcoffsets.SV_Shutdown;
2738                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
2739                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
2740                 }
2741                 SV_VM_End();
2742         }
2743
2744         worldmodel = Mod_ForName(modelname, false, true, true);
2745         if (!worldmodel || !worldmodel->TraceBox)
2746         {
2747                 Con_Printf("Couldn't load map %s\n", modelname);
2748                 return;
2749         }
2750
2751         // let's not have any servers with no name
2752         if (hostname.string[0] == 0)
2753                 Cvar_Set ("hostname", "UNNAMED");
2754         scr_centertime_off = 0;
2755
2756         svs.changelevel_issued = false;         // now safe to issue another
2757
2758         // make the map a required file for clients
2759         Curl_ClearRequirements();
2760         Curl_RequireFile(modelname);
2761
2762 //
2763 // tell all connected clients that we are going to a new level
2764 //
2765         if (sv.active)
2766         {
2767                 client_t *client;
2768                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2769                 {
2770                         if (client->netconnection)
2771                         {
2772                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2773                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2774                         }
2775                 }
2776         }
2777         else
2778         {
2779                 // open server port
2780                 NetConn_OpenServerPorts(true);
2781         }
2782
2783 //
2784 // make cvars consistant
2785 //
2786         if (coop.integer)
2787                 Cvar_SetValue ("deathmatch", 0);
2788         // LordHavoc: it can be useful to have skills outside the range 0-3...
2789         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2790         //Cvar_SetValue ("skill", (float)current_skill);
2791         current_skill = (int)(skill.value + 0.5);
2792
2793 //
2794 // set up the new server
2795 //
2796         memset (&sv, 0, sizeof(sv));
2797         // if running a local client, make sure it doesn't try to access the last
2798         // level's data which is no longer valiud
2799         cls.signon = 0;
2800
2801         if(*sv_random_seed.string)
2802         {
2803                 srand(sv_random_seed.integer);
2804                 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);
2805         }
2806
2807         SV_VM_Setup();
2808
2809         sv.active = true;
2810
2811         strlcpy (sv.name, server, sizeof (sv.name));
2812
2813         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2814         if (sv.protocol == PROTOCOL_UNKNOWN)
2815         {
2816                 char buffer[1024];
2817                 Protocol_Names(buffer, sizeof(buffer));
2818                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2819                 sv.protocol = PROTOCOL_QUAKE;
2820         }
2821
2822         SV_VM_Begin();
2823
2824 // load progs to get entity field count
2825         //PR_LoadProgs ( sv_progs.string );
2826
2827         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2828         sv.datagram.cursize = 0;
2829         sv.datagram.data = sv.datagram_buf;
2830
2831         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2832         sv.reliable_datagram.cursize = 0;
2833         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2834
2835         sv.signon.maxsize = sizeof(sv.signon_buf);
2836         sv.signon.cursize = 0;
2837         sv.signon.data = sv.signon_buf;
2838
2839 // leave slots at start for clients only
2840         //prog->num_edicts = svs.maxclients+1;
2841
2842         sv.state = ss_loading;
2843         prog->allowworldwrites = true;
2844         sv.paused = false;
2845
2846         prog->globals.server->time = sv.time = 1.0;
2847
2848         Mod_ClearUsed();
2849         worldmodel->used = true;
2850
2851         strlcpy (sv.name, server, sizeof (sv.name));
2852         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2853         sv.worldmodel = worldmodel;
2854         sv.models[1] = sv.worldmodel;
2855
2856 //
2857 // clear world interaction links
2858 //
2859         World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
2860
2861         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2862
2863         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2864         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2865         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2866         {
2867                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2868                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2869         }
2870
2871 //
2872 // load the rest of the entities
2873 //
2874         // AK possible hack since num_edicts is still 0
2875         ent = PRVM_EDICT_NUM(0);
2876         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2877         ent->priv.server->free = false;
2878         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2879         ent->fields.server->modelindex = 1;             // world model
2880         ent->fields.server->solid = SOLID_BSP;
2881         ent->fields.server->movetype = MOVETYPE_PUSH;
2882         VectorCopy(sv.world.mins, ent->fields.server->mins);
2883         VectorCopy(sv.world.maxs, ent->fields.server->maxs);
2884         VectorCopy(sv.world.mins, ent->fields.server->absmin);
2885         VectorCopy(sv.world.maxs, ent->fields.server->absmax);
2886
2887         if (coop.value)
2888                 prog->globals.server->coop = coop.integer;
2889         else
2890                 prog->globals.server->deathmatch = deathmatch.integer;
2891
2892         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2893
2894 // serverflags are for cross level information (sigils)
2895         prog->globals.server->serverflags = svs.serverflags;
2896
2897         // we need to reset the spawned flag on all connected clients here so that
2898         // their thinks don't run during startup (before PutClientInServer)
2899         // we also need to set up the client entities now
2900         // and we need to set the ->edict pointers to point into the progs edicts
2901         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2902         {
2903                 host_client->spawned = false;
2904                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2905                 PRVM_ED_ClearEdict(host_client->edict);
2906         }
2907
2908         // load replacement entity file if found
2909         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2910         {
2911                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2912                 PRVM_ED_LoadFromFile (entities);
2913                 Mem_Free(entities);
2914         }
2915         else
2916                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2917
2918
2919         // LordHavoc: clear world angles (to fix e3m3.bsp)
2920         VectorClear(prog->edicts->fields.server->angles);
2921
2922 // all setup is completed, any further precache statements are errors
2923         sv.state = ss_active;
2924         prog->allowworldwrites = false;
2925
2926 // run two frames to allow everything to settle
2927         for (i = 0;i < 2;i++)
2928         {
2929                 sv.frametime = 0.1;
2930                 SV_Physics ();
2931         }
2932
2933         Mod_PurgeUnused();
2934
2935 // create a baseline for more efficient communications
2936         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)
2937                 SV_CreateBaseline ();
2938
2939         // to prevent network timeouts
2940         realtime = Sys_DoubleTime();
2941
2942 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2943         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2944         {
2945                 host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
2946                 if (!host_client->active)
2947                         continue;
2948                 if (host_client->netconnection)
2949                         SV_SendServerinfo(host_client);
2950                 else
2951                 {
2952                         int j;
2953                         // if client is a botclient coming from a level change, we need to
2954                         // set up client info that normally requires networking
2955
2956                         // copy spawn parms out of the client_t
2957                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2958                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2959
2960                         // call the spawn function
2961                         host_client->clientconnectcalled = true;
2962                         prog->globals.server->time = sv.time;
2963                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2964                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2965                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2966                         host_client->spawned = true;
2967                 }
2968         }
2969
2970         Con_DPrint("Server spawned.\n");
2971         NetConn_Heartbeat (2);
2972
2973         SV_VM_End();
2974 }
2975
2976 /////////////////////////////////////////////////////
2977 // SV VM stuff
2978
2979 static void SV_VM_CB_BeginIncreaseEdicts(void)
2980 {
2981         // links don't survive the transition, so unlink everything
2982         World_UnlinkAll(&sv.world);
2983 }
2984
2985 static void SV_VM_CB_EndIncreaseEdicts(void)
2986 {
2987         int i;
2988         prvm_edict_t *ent;
2989
2990         // link every entity except world
2991         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2992                 if (!ent->priv.server->free)
2993                         SV_LinkEdict(ent, false);
2994 }
2995
2996 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
2997 {
2998         // LordHavoc: for consistency set these here
2999         int num = PRVM_NUM_FOR_EDICT(e) - 1;
3000
3001         e->priv.server->move = false; // don't move on first frame
3002
3003         if (num >= 0 && num < svs.maxclients)
3004         {
3005                 prvm_eval_t *val;
3006                 // set colormap and team on newly created player entity
3007                 e->fields.server->colormap = num + 1;
3008                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
3009                 // set netname/clientcolors back to client values so that
3010                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
3011                 // reset them
3012                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
3013                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
3014                         val->_float = svs.clients[num].colors;
3015                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
3016                 if( prog->fieldoffsets.playermodel >= 0 )
3017                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
3018                 if( prog->fieldoffsets.playerskin >= 0 )
3019                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
3020                 // Assign netaddress (IP Address, etc)
3021                 if(prog->fieldoffsets.netaddress >= 0)
3022                 { // Valid Field; Process
3023                         if(svs.clients[num].netconnection != NULL)
3024                         {// Valid Address; Assign
3025                                 // Acquire Readable Address
3026                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
3027                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
3028                         }
3029                         else
3030                                 // Invalid / Bot
3031                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
3032                 }
3033         }
3034 }
3035
3036 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
3037 {
3038         int i;
3039         int e;
3040
3041         World_UnlinkEdict(ed);          // unlink from world bsp
3042
3043         ed->fields.server->model = 0;
3044         ed->fields.server->takedamage = 0;
3045         ed->fields.server->modelindex = 0;
3046         ed->fields.server->colormap = 0;
3047         ed->fields.server->skin = 0;
3048         ed->fields.server->frame = 0;
3049         VectorClear(ed->fields.server->origin);
3050         VectorClear(ed->fields.server->angles);
3051         ed->fields.server->nextthink = -1;
3052         ed->fields.server->solid = 0;
3053
3054         // make sure csqc networking is aware of the removed entity
3055         e = PRVM_NUM_FOR_EDICT(ed);
3056         sv.csqcentityversion[e] = 0;
3057         for (i = 0;i < svs.maxclients;i++)
3058         {
3059                 if (svs.clients[i].csqcentityscope[e])
3060                         svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
3061                 svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
3062         }
3063 }
3064
3065 static void SV_VM_CB_CountEdicts(void)
3066 {
3067         int             i;
3068         prvm_edict_t    *ent;
3069         int             active, models, solid, step;
3070
3071         active = models = solid = step = 0;
3072         for (i=0 ; i<prog->num_edicts ; i++)
3073         {
3074                 ent = PRVM_EDICT_NUM(i);
3075                 if (ent->priv.server->free)
3076                         continue;
3077                 active++;
3078                 if (ent->fields.server->solid)
3079                         solid++;
3080                 if (ent->fields.server->model)
3081                         models++;
3082                 if (ent->fields.server->movetype == MOVETYPE_STEP)
3083                         step++;
3084         }
3085
3086         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
3087         Con_Printf("active    :%3i\n", active);
3088         Con_Printf("view      :%3i\n", models);
3089         Con_Printf("touch     :%3i\n", solid);
3090         Con_Printf("step      :%3i\n", step);
3091 }
3092
3093 static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
3094 {
3095         // remove things from different skill levels or deathmatch
3096         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
3097         {
3098                 if (deathmatch.integer)
3099                 {
3100                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
3101                         {
3102                                 return false;
3103                         }
3104                 }
3105                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
3106                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
3107                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
3108                 {
3109                         return false;
3110                 }
3111         }
3112         return true;
3113 }
3114
3115 static void SV_VM_Setup(void)
3116 {
3117         PRVM_Begin;
3118         PRVM_InitProg( PRVM_SERVERPROG );
3119
3120         // allocate the mempools
3121         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
3122         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
3123         prog->builtins = vm_sv_builtins;
3124         prog->numbuiltins = vm_sv_numbuiltins;
3125         prog->headercrc = PROGHEADER_CRC;
3126         prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
3127         prog->max_edicts = 512;
3128         if (sv.protocol == PROTOCOL_QUAKE)
3129                 prog->limit_edicts = 640; // before quake mission pack 1 this was 512
3130         else if (sv.protocol == PROTOCOL_QUAKEDP)
3131                 prog->limit_edicts = 2048; // guessing
3132         else if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
3133                 prog->limit_edicts = 2048; // guessing!
3134         else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
3135                 prog->limit_edicts = 4096; // guessing!
3136         else
3137                 prog->limit_edicts = MAX_EDICTS;
3138         prog->reserved_edicts = svs.maxclients;
3139         prog->edictprivate_size = sizeof(edict_engineprivate_t);
3140         prog->name = "server";
3141         prog->extensionstring = vm_sv_extensions;
3142         prog->loadintoworld = true;
3143
3144         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
3145         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
3146         prog->init_edict = SV_VM_CB_InitEdict;
3147         prog->free_edict = SV_VM_CB_FreeEdict;
3148         prog->count_edicts = SV_VM_CB_CountEdicts;
3149         prog->load_edict = SV_VM_CB_LoadEdict;
3150         prog->init_cmd = VM_SV_Cmd_Init;
3151         prog->reset_cmd = VM_SV_Cmd_Reset;
3152         prog->error_cmd = Host_Error;
3153
3154         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
3155         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
3156
3157         // some mods compiled with scrambling compilers lack certain critical
3158         // global names and field names such as "self" and "time" and "nextthink"
3159         // so we have to set these offsets manually, matching the entvars_t
3160         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
3161         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
3162         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
3163         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
3164         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
3165         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
3166         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
3167         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
3168         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
3169         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
3170         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
3171         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
3172         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
3173         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
3174         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
3175         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
3176         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
3177         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
3178         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
3179         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
3180         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
3181         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
3182         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
3183         // OP_STATE is always supported on server (due to entvars_t)
3184         prog->flag |= PRVM_OP_STATE;
3185
3186         VM_CustomStats_Clear();//[515]: csqc
3187
3188         PRVM_End;
3189
3190         SV_Prepare_CSQC();
3191 }
3192
3193 void SV_VM_Begin(void)
3194 {
3195         PRVM_Begin;
3196         PRVM_SetProg( PRVM_SERVERPROG );
3197
3198         prog->globals.server->time = (float) sv.time;
3199 }
3200
3201 void SV_VM_End(void)
3202 {
3203         PRVM_End;
3204 }