]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sv_main.c
CPMA-style cl_movement physics settings possible! Variables for it:
[xonotic/darkplaces.git] / sv_main.c
index 864695fc471cb31d163a1fb653224afe0e03adbe..1bff09322e614cb87682c411c58aedba10187d66 100644 (file)
--- a/sv_main.c
+++ b/sv_main.c
@@ -22,15 +22,16 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "quakedef.h"
 #include "sv_demo.h"
 #include "libcurl.h"
+#include "csprogs.h"
 
 static void SV_SaveEntFile_f(void);
 static void SV_StartDownload_f(void);
 static void SV_Download_f(void);
 static void SV_VM_Setup();
+extern cvar_t net_connecttimeout;
 
 void VM_CustomStats_Clear (void);
 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
-void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int numstates, const entity_state_t *states);
 
 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)"};
 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)"};
@@ -49,6 +50,10 @@ cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's ver
 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
 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"};
+cvar_t sv_airstopaccelerate = {0, "sv_airstopaccelerate", "0", "when set, replacement for sv_airaccelerate when moving backwards"};
+cvar_t sv_airstrafeaccelerate = {0, "sv_airstrafeaccelerate", "0", "when set, replacement for sv_airaccelerate when just strafing"};
+cvar_t sv_maxairstrafespeed = {0, "sv_maxairstrafespeed", "0", "when set, replacement for sv_maxairspeed when just strafing"};
+cvar_t sv_aircontrol = {0, "sv_aircontrol", "0", "CPMA-style air control"};
 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
@@ -58,20 +63,23 @@ cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "64",
 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"};
 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"};
 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)"};
+cvar_t sv_clmovement_maxnetfps = {0, "sv_clmovement_maxnetfps", "0", "max amount of movement packets to accept per second"};
 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)"};
-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)"};
+cvar_t sv_clmovement_inputtimeout = {0, "sv_clmovement_inputtimeout", "0.2", "when a client does not send input for this many seconds, force them to move anyway (unlike QuakeWorld)"};
 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!)"};
 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
 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"};
 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
+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"};
 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
 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"};
+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"};
 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
-cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
+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)"};
 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)"};
 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)"};
 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
@@ -79,16 +87,19 @@ cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
 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"};
 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"};
 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)"};
+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"};
 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)"};
 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"};
 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
 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"};
+cvar_t sv_gameplayfix_slidemoveprojectiles = {0, "sv_gameplayfix_slidemoveprojectiles", "1", "allows MOVETYPE_FLY/FLYMISSILE/TOSS/BOUNCE/BOUNCEMISSILE entities to finish their move in a frame even if they hit something, fixes 'gravity accumulation' bug for grenades on steep slopes"};
 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"};
 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"};
 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)"};
 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)"};
 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"};
 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"};
+cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
@@ -148,9 +159,10 @@ cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singlepla
 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 
-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)"};
-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 IP address + port number, and the client number, separated by underscores" };
+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)"};
+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)" };
 
+cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
 
 server_t sv;
 server_static_t svs;
@@ -211,6 +223,7 @@ prvm_required_field_t reqfields[] =
        {ev_entity, "nodrawtoclient"},
        {ev_entity, "tag_entity"},
        {ev_entity, "viewmodelforclient"},
+       {ev_float, "SendFlags"},
        {ev_float, "Version"},
        {ev_float, "alpha"},
        {ev_float, "ammo_cells1"},
@@ -261,6 +274,7 @@ prvm_required_field_t reqfields[] =
        {ev_function, "SendEntity"},
        {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
        {ev_function, "customizeentityforclient"},
+       {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
        {ev_string, "netaddress"},
        {ev_string, "playermodel"},
        {ev_string, "playerskin"},
@@ -319,6 +333,10 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_airaccel_qw);
        Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
        Cvar_RegisterVariable (&sv_airaccelerate);
+       Cvar_RegisterVariable (&sv_airstopaccelerate);
+       Cvar_RegisterVariable (&sv_airstrafeaccelerate);
+       Cvar_RegisterVariable (&sv_maxairstrafespeed);
+       Cvar_RegisterVariable (&sv_aircontrol);
        Cvar_RegisterVariable (&sv_allowdownloads);
        Cvar_RegisterVariable (&sv_allowdownloads_archive);
        Cvar_RegisterVariable (&sv_allowdownloads_config);
@@ -327,18 +345,21 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_areagrid_mingridsize);
        Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
        Cvar_RegisterVariable (&sv_clmovement_enable);
+       Cvar_RegisterVariable (&sv_clmovement_maxnetfps);
        Cvar_RegisterVariable (&sv_clmovement_minping);
        Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
-       Cvar_RegisterVariable (&sv_clmovement_waitforinput);
+       Cvar_RegisterVariable (&sv_clmovement_inputtimeout);
        Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
        Cvar_RegisterVariable (&sv_cullentities_pvs);
        Cvar_RegisterVariable (&sv_cullentities_stats);
        Cvar_RegisterVariable (&sv_cullentities_trace);
        Cvar_RegisterVariable (&sv_cullentities_trace_delay);
+       Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
        Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
        Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
        Cvar_RegisterVariable (&sv_cullentities_trace_samples);
        Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
+       Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
        Cvar_RegisterVariable (&sv_debugmove);
        Cvar_RegisterVariable (&sv_echobprint);
        Cvar_RegisterVariable (&sv_edgefriction);
@@ -349,16 +370,19 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
        Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
        Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
+       Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
        Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
        Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
        Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
        Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
+       Cvar_RegisterVariable (&sv_gameplayfix_slidemoveprojectiles);
        Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
        Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
        Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
        Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
        Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
        Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
+       Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
        Cvar_RegisterVariable (&sv_gravity);
        Cvar_RegisterVariable (&sv_idealpitchscale);
        Cvar_RegisterVariable (&sv_jumpstep);
@@ -425,11 +449,22 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_autodemo_perclient);
        Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
 
+       Cvar_RegisterVariable (&halflifebsp);
+
        // any special defaults for gamemodes go here
+       if (gamemode == GAME_NEHAHRA)
+       {
+               // Nehahra pushable crates malfunction in some levels if this is on
+               Cvar_SetValueQuick (&sv_gameplayfix_upwardvelocityclearsongroundflag, 0);
+               // Nehahra NPC AI is confused by this feature
+               Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
+       }
        if (gamemode == GAME_HIPNOTIC)
        {
                // 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.
                Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
+               // 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
+               Cvar_SetValueQuick (&sys_ticrate, 0.02);
        }
        if (gamemode == GAME_ROGUE)
        {
@@ -723,13 +758,47 @@ void SV_SendServerinfo (client_t *client)
        }
 
        // reset csqc entity versions
-       memset(client->csqcentityversion, 0, sizeof(client->csqcentityversion));
+       for (i = 0;i < prog->max_edicts;i++)
+       {
+               client->csqcentityscope[i] = 0;
+               client->csqcentitysendflags[i] = 0xFFFFFF;
+               client->csqcentityglobalhistory[i] = 0;
+       }
+       for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
+       {
+               client->csqcentityframehistory[i].num = 0;
+               client->csqcentityframehistory[i].framenum = -1;
+       }
+       client->csqcnumedicts = 0;
+       client->csqcentityframehistory_next = 0;
 
        SZ_Clear (&client->netconnection->message);
        MSG_WriteByte (&client->netconnection->message, svc_print);
        dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
        MSG_WriteString (&client->netconnection->message,message);
 
+       SV_StopDemoRecording(client); // to split up demos into different files
+       if(sv_autodemo_perclient.integer && client->netconnection)
+       {
+               char demofile[MAX_OSPATH];
+               char levelname[MAX_QPATH];
+               char ipaddress[MAX_QPATH];
+               size_t i;
+
+               // start a new demo file
+               strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
+               if (strrchr(levelname, '.'))
+                       *(strrchr(levelname, '.')) = 0;
+
+               LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
+               for(i = 0; ipaddress[i]; ++i)
+                       if(!isalnum(ipaddress[i]))
+                               ipaddress[i] = '-';
+               dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
+
+               SV_StartDemoRecording(client, demofile, -1);
+       }
+
        //[515]: init csprogs according to version of svprogs, check the crc, etc.
        if (sv.csqc_progname[0])
        {
@@ -741,6 +810,20 @@ void SV_SendServerinfo (client_t *client)
                MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
                MSG_WriteByte (&client->netconnection->message, svc_stufftext);
                MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
+
+               if(client->sv_demo_file != NULL)
+               {
+                       int i;
+                       char buf[NET_MAXMESSAGE];
+                       sizebuf_t sb;
+
+                       sb.data = (unsigned char *) buf;
+                       sb.maxsize = sizeof(buf);
+                       i = 0;
+                       while(MakeDownloadPacket(sv.csqc_progname, svs.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
+                               SV_WriteDemoMessage(client, &sb, false);
+               }
+
                //[515]: init stufftext string (it is sent before svc_serverinfo)
                val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
                if (val)
@@ -750,10 +833,12 @@ void SV_SendServerinfo (client_t *client)
                }
        }
 
-       if (sv_allowdownloads.integer)
+       //if (sv_allowdownloads.integer)
+       // always send the info that the server supports the protocol, even if downloads are forbidden
+       // only because of that, the CSQC exception can work
        {
                MSG_WriteByte (&client->netconnection->message, svc_stufftext);
-               MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1\n");
+               MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
        }
 
        // send at this time so it's guaranteed to get executed at the right time
@@ -794,7 +879,7 @@ void SV_SendServerinfo (client_t *client)
        client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
        MSG_WriteByte (&client->netconnection->message, svc_setview);
        MSG_WriteShort (&client->netconnection->message, client->clientcamera);
-       
+
        MSG_WriteByte (&client->netconnection->message, svc_signonnum);
        MSG_WriteByte (&client->netconnection->message, 1);
 
@@ -811,27 +896,8 @@ void SV_SendServerinfo (client_t *client)
 #endif
        client->ping = 0;
 
-       SV_StopDemoRecording(client); // to split up demos into different files
-       if(sv_autodemo_perclient.integer && client->netconnection)
-       {
-               char demofile[MAX_OSPATH];
-               char levelname[MAX_QPATH];
-               char ipaddress[MAX_QPATH];
-               size_t i;
-
-               // start a new demo file
-               strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
-               if (strrchr(levelname, '.'))
-                       *(strrchr(levelname, '.')) = 0;
-
-               LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
-               for(i = 0; ipaddress[i]; ++i)
-                       if(!isalnum(ipaddress[i]))
-                               ipaddress[i] = '-';
-               dpsnprintf (demofile, sizeof(demofile), "%s_%s_%s_%d.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, ipaddress, PRVM_NUM_FOR_EDICT(client->edict));
-
-               SV_StartDemoRecording(client, demofile, -1);
-       }
+       // allow the client some time to send his keepalives, even if map loading took ages
+       client->netconnection->timeout = realtime + net_connecttimeout.value;
 }
 
 /*
@@ -921,12 +987,14 @@ crosses a waterline.
 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
 {
        int i;
+       unsigned int sendflags;
+       unsigned int version;
        unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
        unsigned int customizeentityforclient;
        float f;
        vec3_t cullmins, cullmaxs;
-       model_t *model;
-       prvm_eval_t *val;
+       dp_model_t *model;
+       prvm_eval_t *val, *val2;
 
        // this 2 billion unit check is actually to detect NAN origins
        // (we really don't want to send those)
@@ -1103,7 +1171,7 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
        // calculate the visible box of this entity (don't use the physics box
        // as that is often smaller than a model, and would not count
        // specialvisibilityradius)
-       if ((model = sv.models[modelindex]))
+       if ((model = sv.models[modelindex]) && (model->type != mod_null))
        {
                float scale = cs->scale * (1.0f / 16.0f);
                if (cs->angles[0] || cs->angles[2]) // pitch and roll
@@ -1159,6 +1227,30 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
                }
        }
 
+       // we need to do some csqc entity upkeep here
+       // get self.SendFlags and clear them
+       // (to let the QC know that they've been read)
+       val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity);
+       if (val->function)
+       {
+               val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
+               sendflags = (unsigned int)val->_float;
+               val->_float = 0;
+               // legacy self.Version system
+               val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
+               if (val2->_float)
+               {
+                       version = (unsigned int)val2->_float;
+                       if (sv.csqcentityversion[enumber] != version)
+                               sendflags = 0xFFFFFF;
+                       sv.csqcentityversion[enumber] = version;
+               }
+               // move sendflags into the per-client sendflags
+               if (sendflags)
+                       for (i = 0;i < svs.maxclients;i++)
+                               svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
+       }
+
        return true;
 }
 
@@ -1183,7 +1275,7 @@ void SV_PrepareEntitiesForSending(void)
 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
 {
        int isbmodel;
-       model_t *model;
+       dp_model_t *model;
        prvm_edict_t *ed;
        if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
                return;
@@ -1238,7 +1330,7 @@ void SV_MarkWriteEntityStateToClient(entity_state_t *s)
                        ed = PRVM_EDICT_NUM(s->number);
 
                        // if not touching a visible leaf
-                       if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
+                       if (sv_cullentities_pvs.integer && !r_novis.integer && sv.writeentitiestoclient_pvsbytes)
                        {
                                if (ed->priv.server->pvs_numclusters < 0)
                                {
@@ -1267,48 +1359,62 @@ void SV_MarkWriteEntityStateToClient(entity_state_t *s)
                        // or not seen by random tracelines
                        if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
                        {
-                               int samples = s->specialvisibilityradius ? sv_cullentities_trace_samples_extra.integer : sv_cullentities_trace_samples.integer;
+                               int samples =
+                                       s->number <= svs.maxclients
+                                               ? sv_cullentities_trace_samples_players.integer
+                                               :
+                                       s->specialvisibilityradius
+                                               ? sv_cullentities_trace_samples_extra.integer
+                                               : sv_cullentities_trace_samples.integer;
                                float enlarge = sv_cullentities_trace_enlarge.value;
 
                                qboolean visible = TRUE;
 
-                               do
+                               if(samples > 0)
                                {
-                                       if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
-                                               break; // directly visible from the server's view
-
-                                       if(sv_cullentities_trace_prediction.integer)
+                                       do
                                        {
-                                               vec3_t predeye;
-
-                                               // get player velocity
-                                               float predtime = bound(0, host_client->ping, 0.2); // / 2
-                                                       // sorry, no wallhacking by high ping please, and at 200ms
-                                                       // ping a FPS is annoying to play anyway and a player is
-                                                       // likely to have changed his direction
-                                               VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
-                                               if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
-                                               {
-                                                       if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
-                                                               break; // directly visible from the predicted view
-                                               }
-                                               else
+                                               if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
+                                                       break; // directly visible from the server's view
+
+                                               if(sv_cullentities_trace_prediction.integer)
                                                {
-                                                       //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
+                                                       vec3_t predeye;
+
+                                                       // get player velocity
+                                                       float predtime = bound(0, host_client->ping, 0.2); // / 2
+                                                               // sorry, no wallhacking by high ping please, and at 200ms
+                                                               // ping a FPS is annoying to play anyway and a player is
+                                                               // likely to have changed his direction
+                                                       VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
+                                                       if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
+                                                       {
+                                                               if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
+                                                                       break; // directly visible from the predicted view
+                                                       }
+                                                       else
+                                                       {
+                                                               //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
+                                                       }
                                                }
-                                       }
-
-                                       // when we get here, we can't see the entity
-                                       visible = false;
-                               }
-                               while(0);
 
-                               if(visible)
-                                       svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] = realtime + sv_cullentities_trace_delay.value;
-                               else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
-                               {
-                                       sv.writeentitiestoclient_stats_culled_trace++;
-                                       return;
+                                               // when we get here, we can't see the entity
+                                               visible = false;
+                                       }
+                                       while(0);
+
+                                       if(visible)
+                                               svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
+                                                       realtime + (
+                                                               s->number <= svs.maxclients
+                                                                       ? sv_cullentities_trace_delay_players.value
+                                                                       : sv_cullentities_trace_delay.value
+                                                       );
+                                       else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
+                                       {
+                                               sv.writeentitiestoclient_stats_culled_trace++;
+                                               return;
+                                       }
                                }
                        }
                }
@@ -1321,14 +1427,15 @@ void SV_MarkWriteEntityStateToClient(entity_state_t *s)
        sv.sententities[s->number] = sv.sententitiesmark;
 }
 
-void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg)
+void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
 {
+       qboolean need_empty = false;
        int i, numsendstates;
        entity_state_t *s;
        prvm_edict_t *camera;
 
        // if there isn't enough space to accomplish anything, skip it
-       if (msg->cursize + 25 > msg->maxsize)
+       if (msg->cursize + 25 > maxsize)
                return;
 
        sv.writeentitiestoclient_msg = msg;
@@ -1369,23 +1476,26 @@ void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *
        if (sv_cullentities_stats.integer)
                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);
 
-       EntityFrameCSQC_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
+       if(client->entitydatabase5)
+               need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, client->entitydatabase5->latestframenum + 1);
+       else
+               EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates, 0);
 
        if (client->entitydatabase5)
-               EntityFrame5_WriteFrame(msg, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence);
+               EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
        else if (client->entitydatabase4)
        {
-               EntityFrame4_WriteFrame(msg, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
+               EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
                Protocol_WriteStatsReliable();
        }
        else if (client->entitydatabase)
        {
-               EntityFrame_WriteFrame(msg, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
+               EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
                Protocol_WriteStatsReliable();
        }
        else
        {
-               EntityFrameQuake_WriteFrame(msg, numsendstates, sv.writeentitiestoclient_sendstates);
+               EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
                Protocol_WriteStatsReliable();
        }
 }
@@ -1526,8 +1636,8 @@ void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t
        stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
        stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
        stats[STAT_VIEWZOOM] = viewzoom;
-       stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
-       stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
+       stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
+       stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
        // the QC bumps these itself by sending svc_'s, so we have to keep them
        // zero or they'll be corrected by the engine
        //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
@@ -1554,6 +1664,10 @@ void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t
        statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
        statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
        statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
+       statsf[STAT_MOVEVARS_AIRSTOPACCELERATE] = sv_airstopaccelerate.value;
+       statsf[STAT_MOVEVARS_AIRSTRAFEACCELERATE] = sv_airstrafeaccelerate.value;
+       statsf[STAT_MOVEVARS_MAXAIRSTRAFESPEED] = sv_maxairstrafespeed.value;
+       statsf[STAT_MOVEVARS_AIRCONTROL] = sv_aircontrol.value;
        statsf[STAT_FRAGLIMIT] = fraglimit.value;
        statsf[STAT_TIMELIMIT] = timelimit.value;
 
@@ -1689,23 +1803,24 @@ void SV_FlushBroadcastMessages(void)
        SZ_Clear(&sv.datagram);
 }
 
-static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg)
+static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize)
 {
        // scan the splitpoints to find out how many we can fit in
        int numsegments, j, split;
        if (!client->unreliablemsg_splitpoints)
                return;
-       // always accept the first one if it's within 1400 bytes, this ensures
+       // always accept the first one if it's within 1024 bytes, this ensures
        // that very big datagrams which are over the rate limit still get
        // through, just to keep it working
-       if (msg->cursize + client->unreliablemsg_splitpoint[0] > msg->maxsize && msg->maxsize < 1400)
+       j = msg->cursize + client->unreliablemsg_splitpoint[0];
+       if (maxsize < 1024 && j > maxsize && j <= 1024)
        {
                numsegments = 1;
-               msg->maxsize = 1400;
+               maxsize = 1024;
        }
        else
                for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
-                       if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > msg->maxsize)
+                       if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
                                break;
        if (numsegments > 0)
        {
@@ -1714,7 +1829,7 @@ static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg)
                // note this discards ones that were accepted by the segments scan but
                // can not fit, such as a really huge first one that will never ever
                // fit in a packet...
-               if (msg->cursize + split <= msg->maxsize)
+               if (msg->cursize + split <= maxsize)
                        SZ_Write(msg, client->unreliablemsg.data, split);
                // remove the part we sent, keeping any remaining data
                client->unreliablemsg.cursize -= split;
@@ -1739,40 +1854,47 @@ static void SV_SendClientDatagram (client_t *client)
        int stats[MAX_CL_STATS];
        unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
 
+       // obey rate limit by limiting packet frequency if the packet size
+       // limiting fails
+       // (usually this is caused by reliable messages)
+       if (!NetConn_CanSend(client->netconnection))
+               return;
+
        // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
        maxrate = max(NET_MINRATE, sv_maxrate.integer);
        if (sv_maxrate.integer != maxrate)
                Cvar_SetValueQuick(&sv_maxrate, maxrate);
+
        // clientrate determines the 'cleartime' of a packet
        // (how long to wait before sending another, based on this packet's size)
        clientrate = bound(NET_MINRATE, client->rate, maxrate);
 
-       if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
-       {
-               // for good singleplayer, send huge packets
-               maxsize = sizeof(sv_sendclientdatagram_buf);
-               maxsize2 = sizeof(sv_sendclientdatagram_buf);
-               // never limit frequency in singleplayer
-               clientrate = 1000000000;
-       }
-       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_QUAKEWORLD)
+       switch (sv.protocol)
        {
+       case PROTOCOL_QUAKE:
+       case PROTOCOL_QUAKEDP:
+       case PROTOCOL_NEHAHRAMOVIE:
+       case PROTOCOL_NEHAHRABJP:
+       case PROTOCOL_NEHAHRABJP2:
+       case PROTOCOL_NEHAHRABJP3:
+       case PROTOCOL_QUAKEWORLD:
                // no packet size limit support on Quake protocols because it just
                // causes missing entities/effects
                // packets are simply sent less often to obey the rate limit
                maxsize = 1024;
                maxsize2 = 1024;
-       }
-       else if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
-       {
+               break;
+       case PROTOCOL_DARKPLACES1:
+       case PROTOCOL_DARKPLACES2:
+       case PROTOCOL_DARKPLACES3:
+       case PROTOCOL_DARKPLACES4:
                // no packet size limit support on DP1-4 protocols because they kick
                // the client off if they overflow, and miss effects
                // packets are simply sent less often to obey the rate limit
                maxsize = sizeof(sv_sendclientdatagram_buf);
                maxsize2 = sizeof(sv_sendclientdatagram_buf);
-       }
-       else
-       {
+               break;
+       default:
                // DP5 and later protocols support packet size limiting which is a
                // better method than limiting packet frequency as QW does
                //
@@ -1785,13 +1907,17 @@ static void SV_SendClientDatagram (client_t *client)
                // mods that use csqc (they are likely to use less bandwidth anyway)
                if (sv.csqc_progsize > 0)
                        maxsize = maxsize2;
+               break;
        }
 
-       // obey rate limit by limiting packet frequency if the packet size
-       // limiting fails
-       // (usually this is caused by reliable messages)
-       if (!NetConn_CanSend(client->netconnection))
-               return;
+       if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
+       {
+               // for good singleplayer, send huge packets
+               maxsize = sizeof(sv_sendclientdatagram_buf);
+               maxsize2 = sizeof(sv_sendclientdatagram_buf);
+               // never limit frequency in singleplayer
+               clientrate = 1000000000;
+       }
 
        // while downloading, limit entity updates to half the packet
        // (any leftover space will be used for downloading)
@@ -1799,8 +1925,9 @@ static void SV_SendClientDatagram (client_t *client)
                maxsize /= 2;
 
        msg.data = sv_sendclientdatagram_buf;
-       msg.maxsize = maxsize;
+       msg.maxsize = sizeof(sv_sendclientdatagram_buf);
        msg.cursize = 0;
+       msg.allowoverflow = false;
 
        if (host_client->spawned)
        {
@@ -1817,30 +1944,24 @@ static void SV_SendClientDatagram (client_t *client)
 
                // add as many queued unreliable messages (effects) as we can fit
                // limit effects to half of the remaining space
-               msg.maxsize -= (msg.maxsize - msg.cursize) / 2;
                if (client->unreliablemsg.cursize)
-                       SV_WriteUnreliableMessages (client, &msg);
-
-               msg.maxsize = maxsize;
+                       SV_WriteUnreliableMessages (client, &msg, (msg.cursize + maxsize) / 2);
 
                // now write as many entities as we can fit, and also sends stats
-               SV_WriteEntitiesToClient (client, client->edict, &msg);
+               SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
        }
        else if (realtime > client->keepalivetime)
        {
                // the player isn't totally in the game yet
                // send small keepalive messages if too much time has passed
                // (may also be sending downloads)
-               msg.maxsize = maxsize2;
                client->keepalivetime = realtime + 5;
                MSG_WriteChar (&msg, svc_nop);
        }
 
-       msg.maxsize = maxsize2;
-
        // if a download is active, see if there is room to fit some download data
        // in this packet
-       downloadsize = maxsize * 2 - msg.cursize - 7;
+       downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
        if (host_client->download_file && host_client->download_started && downloadsize > 0)
        {
                fs_offset_t downloadstart;
@@ -1863,9 +1984,9 @@ static void SV_SendClientDatagram (client_t *client)
 
        // reliable only if none is in progress
        if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
-               SV_WriteDemoMessage(client, &(client->netconnection->message));
+               SV_WriteDemoMessage(client, &(client->netconnection->message), false);
        // unreliable
-       SV_WriteDemoMessage(client, &msg);
+       SV_WriteDemoMessage(client, &msg, false);
 
 // send the datagram
        NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
@@ -1903,7 +2024,7 @@ static void SV_UpdateToReliableMessages (void)
                if (strcmp(host_client->old_name, host_client->name))
                {
                        if (host_client->spawned)
-                               SV_BroadcastPrintf("%s changed name to %s\n", host_client->old_name, host_client->name);
+                               SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
                        strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
                        // send notification to all clients
                        MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
@@ -1976,7 +2097,7 @@ static void SV_UpdateToReliableMessages (void)
        }
 
        for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
-               if (client->netconnection)
+               if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
                        SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
 
        SZ_Clear (&sv.reliable_datagram);
@@ -2033,13 +2154,58 @@ static void SV_StartDownload_f(void)
                host_client->download_started = true;
 }
 
+/*
+ * Compression extension negotiation:
+ *
+ * Server to client:
+ *   cl_serverextension_download 2
+ *
+ * Client to server:
+ *   download <filename> <list of zero or more suppported compressions in order of preference>
+ * e.g.
+ *   download maps/map1.bsp lzo deflate huffman
+ *
+ * Server to client:
+ *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
+ * e.g.
+ *   cl_downloadbegin 123456 maps/map1.bsp deflate
+ *
+ * The server may choose not to compress the file by sending no compression name, like:
+ *   cl_downloadbegin 345678 maps/map1.bsp
+ *
+ * NOTE: the "download" command may only specify compression algorithms if
+ *       cl_serverextension_download is 2!
+ *       If cl_serverextension_download has a different value, the client must
+ *       assume this extension is not supported!
+ */
+
+static void Download_CheckExtensions(void)
+{
+       int i;
+       int argc = Cmd_Argc();
+
+       // first reset them all
+       host_client->download_deflate = false;
+       
+       for(i = 2; i < argc; ++i)
+       {
+               if(!strcmp(Cmd_Argv(i), "deflate"))
+               {
+                       host_client->download_deflate = true;
+                       break;
+               }
+       }
+}
+
 static void SV_Download_f(void)
 {
        const char *whichpack, *whichpack2, *extension;
+       qboolean is_csqc; // so we need to check only once
 
-       if (Cmd_Argc() != 2)
+       if (Cmd_Argc() < 2)
        {
-               SV_ClientPrintf("usage: download <filename>\n");
+               SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
+               SV_ClientPrintf("       supported extensions: deflate\n");
                return;
        }
 
@@ -2063,13 +2229,17 @@ static void SV_Download_f(void)
                host_client->download_started = false;
        }
 
-       if (!sv_allowdownloads.integer)
+       is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
+       
+       if (!sv_allowdownloads.integer && !is_csqc)
        {
                SV_ClientPrintf("Downloads are disabled on this server\n");
                Host_ClientCommands("\nstopdownload\n");
                return;
        }
 
+       Download_CheckExtensions();
+
        strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
        extension = FS_FileExtension(host_client->download_name);
 
@@ -2077,6 +2247,30 @@ static void SV_Download_f(void)
        if (developer.integer >= 100)
                Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
 
+       if(is_csqc)
+       {
+               char extensions[MAX_QPATH]; // make sure this can hold all extensions
+               extensions[0] = '\0';
+               
+               if(host_client->download_deflate)
+                       strlcat(extensions, " deflate", sizeof(extensions));
+               
+               Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
+
+               if(host_client->download_deflate)
+                       host_client->download_file = FS_FileFromData(svs.csqc_progdata_deflated, svs.csqc_progsize_deflated, true);
+               else
+                       host_client->download_file = FS_FileFromData(svs.csqc_progdata, sv.csqc_progsize, true);
+               
+               // no, no space is needed between %s and %s :P
+               Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
+
+               host_client->download_expectedposition = 0;
+               host_client->download_started = false;
+               host_client->sendsignon = true; // make sure this message is sent
+               return;
+       }
+
        if (!FS_FileExists(host_client->download_name))
        {
                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);
@@ -2136,7 +2330,7 @@ static void SV_Download_f(void)
                }
        }
 
-       host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
+       host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
        if (!host_client->download_file)
        {
                SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
@@ -2153,8 +2347,31 @@ static void SV_Download_f(void)
                return;
        }
 
+       if (FS_FileSize(host_client->download_file) < 0)
+       {
+               SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
+               Host_ClientCommands("\nstopdownload\n");
+               FS_Close(host_client->download_file);
+               host_client->download_file = NULL;
+               return;
+       }
+
        Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
 
+       /*
+        * we can only do this if we would actually deflate on the fly
+        * which we do not (yet)!
+       {
+               char extensions[MAX_QPATH]; // make sure this can hold all extensions
+               extensions[0] = '\0';
+               
+               if(host_client->download_deflate)
+                       strlcat(extensions, " deflate", sizeof(extensions));
+
+               // no, no space is needed between %s and %s :P
+               Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
+       }
+       */
        Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
 
        host_client->download_expectedposition = 0;
@@ -2206,7 +2423,7 @@ int SV_ModelIndex(const char *s, int precachemode)
                                if (precachemode == 1)
                                        Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
                                strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
-                               sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
+                               sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, s[0] == '*' ? sv.modelname : NULL);
                                if (sv.state != ss_loading)
                                {
                                        MSG_WriteByte(&sv.reliable_datagram, svc_precache);
@@ -2433,6 +2650,51 @@ static void SV_CreateBaseline (void)
        }
 }
 
+/*
+================
+SV_Prepare_CSQC
+
+Load csprogs.dat and comperss it so it doesn't need to be
+reloaded on request.
+================
+*/
+void SV_Prepare_CSQC(void)
+{
+       fs_offset_t progsize;
+
+       if(svs.csqc_progdata)
+       {
+               Con_DPrintf("Unloading old CSQC data.\n");
+               Mem_Free(svs.csqc_progdata);
+               if(svs.csqc_progdata_deflated)
+                       Mem_Free(svs.csqc_progdata_deflated);
+       }
+
+       svs.csqc_progdata = NULL;
+       svs.csqc_progdata_deflated = NULL;
+       
+       Con_Print("Loading csprogs.dat\n");
+
+       sv.csqc_progname[0] = 0;
+       svs.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
+
+       if(progsize > 0)
+       {
+               size_t deflated_size;
+               
+               sv.csqc_progsize = (int)progsize;
+               sv.csqc_progcrc = CRC_Block(svs.csqc_progdata, progsize);
+               strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
+               Con_Printf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
+
+               Con_Print("Compressing csprogs.dat\n");
+               //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
+               svs.csqc_progdata_deflated = FS_Deflate(svs.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
+               svs.csqc_progsize_deflated = (int)deflated_size;
+               Con_Printf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
+               Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)svs.csqc_progsize_deflated);
+       }
+}
 
 /*
 ================
@@ -2474,19 +2736,41 @@ void SV_SpawnServer (const char *server)
        prvm_edict_t *ent;
        int i;
        char *entities;
-       model_t *worldmodel;
+       dp_model_t *worldmodel;
        char modelname[sizeof(sv.modelname)];
 
        Con_DPrintf("SpawnServer: %s\n", server);
 
+       dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
+
+       if (!FS_FileExists(modelname))
+       {
+               Con_Printf("SpawnServer: no map file named %s\n", modelname);
+               return;
+       }
+
        if (cls.state != ca_dedicated)
        {
                SCR_BeginLoadingPlaque();
                S_StopAllSounds();
        }
 
-       dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
-       worldmodel = Mod_ForName(modelname, false, true, true);
+       if(sv.active)
+       {
+               SV_VM_Begin();
+               if(prog->funcoffsets.SV_Shutdown)
+               {
+                       func_t s = prog->funcoffsets.SV_Shutdown;
+                       prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
+                       PRVM_ExecuteProgram(s,"SV_Shutdown() required");
+               }
+               SV_VM_End();
+       }
+
+       // free q3 shaders so that any newly downloaded shaders will be active
+       Mod_FreeQ3Shaders();
+
+       worldmodel = Mod_ForName(modelname, false, true, NULL);
        if (!worldmodel || !worldmodel->TraceBox)
        {
                Con_Printf("Couldn't load map %s\n", modelname);
@@ -2543,6 +2827,8 @@ void SV_SpawnServer (const char *server)
        // level's data which is no longer valiud
        cls.signon = 0;
 
+       Cvar_SetValue("halflifebsp", worldmodel->brush.ishlbsp);
+
        if(*sv_random_seed.string)
        {
                srand(sv_random_seed.integer);
@@ -2601,9 +2887,7 @@ void SV_SpawnServer (const char *server)
 //
 // clear world interaction links
 //
-       VectorCopy(sv.worldmodel->normalmins, sv.world.areagrid_mins);
-       VectorCopy(sv.worldmodel->normalmaxs, sv.world.areagrid_maxs);
-       World_Clear(&sv.world);
+       World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
 
        strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
 
@@ -2612,7 +2896,7 @@ void SV_SpawnServer (const char *server)
        for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
        {
                dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
-               sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
+               sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, sv.modelname);
        }
 
 //
@@ -2626,10 +2910,10 @@ void SV_SpawnServer (const char *server)
        ent->fields.server->modelindex = 1;             // world model
        ent->fields.server->solid = SOLID_BSP;
        ent->fields.server->movetype = MOVETYPE_PUSH;
-       VectorCopy(sv.worldmodel->normalmins, ent->fields.server->mins);
-       VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->maxs);
-       VectorCopy(sv.worldmodel->normalmins, ent->fields.server->absmin);
-       VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->absmax);
+       VectorCopy(sv.world.mins, ent->fields.server->mins);
+       VectorCopy(sv.world.maxs, ent->fields.server->maxs);
+       VectorCopy(sv.world.mins, ent->fields.server->absmin);
+       VectorCopy(sv.world.maxs, ent->fields.server->absmax);
 
        if (coop.value)
                prog->globals.server->coop = coop.integer;
@@ -2667,25 +2951,33 @@ void SV_SpawnServer (const char *server)
        VectorClear(prog->edicts->fields.server->angles);
 
 // all setup is completed, any further precache statements are errors
-       sv.state = ss_active;
+//     sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
        prog->allowworldwrites = false;
 
 // run two frames to allow everything to settle
+       prog->globals.server->time = sv.time = 1.0001;
        for (i = 0;i < 2;i++)
        {
                sv.frametime = 0.1;
                SV_Physics ();
        }
 
-       Mod_PurgeUnused();
+       if (cls.state == ca_dedicated)
+               Mod_PurgeUnused();
 
 // create a baseline for more efficient communications
        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_CreateBaseline ();
 
+       sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
+
+       // to prevent network timeouts
+       realtime = Sys_DoubleTime();
+       
 // send serverinfo to all connected clients, and set up botclients coming back from a level change
        for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
        {
+               host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
                if (!host_client->active)
                        continue;
                if (host_client->netconnection)
@@ -2721,17 +3013,8 @@ void SV_SpawnServer (const char *server)
 
 static void SV_VM_CB_BeginIncreaseEdicts(void)
 {
-       int i;
-       prvm_edict_t *ent;
-
        // links don't survive the transition, so unlink everything
-       for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
-       {
-               if (!ent->priv.server->free)
-                       World_UnlinkEdict(prog->edicts + i);
-               memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
-       }
-       World_Clear(&sv.world);
+       World_UnlinkAll(&sv.world);
 }
 
 static void SV_VM_CB_EndIncreaseEdicts(void)
@@ -2787,6 +3070,9 @@ static void SV_VM_CB_InitEdict(prvm_edict_t *e)
 
 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
 {
+       int i;
+       int e;
+
        World_UnlinkEdict(ed);          // unlink from world bsp
 
        ed->fields.server->model = 0;
@@ -2799,6 +3085,16 @@ static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
        VectorClear(ed->fields.server->angles);
        ed->fields.server->nextthink = -1;
        ed->fields.server->solid = 0;
+
+       // make sure csqc networking is aware of the removed entity
+       e = PRVM_NUM_FOR_EDICT(ed);
+       sv.csqcentityversion[e] = 0;
+       for (i = 0;i < svs.maxclients;i++)
+       {
+               if (svs.clients[i].csqcentityscope[e])
+                       svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
+               svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
+       }
 }
 
 static void SV_VM_CB_CountEdicts(void)
@@ -2853,10 +3149,6 @@ static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
 
 static void SV_VM_Setup(void)
 {
-       extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
-       extern cvar_t csqc_progcrc;
-       extern cvar_t csqc_progsize;
-       size_t csprogsdatasize;
        PRVM_Begin;
        PRVM_InitProg( PRVM_SERVERPROG );
 
@@ -2866,6 +3158,7 @@ static void SV_VM_Setup(void)
        prog->builtins = vm_sv_builtins;
        prog->numbuiltins = vm_sv_numbuiltins;
        prog->headercrc = PROGHEADER_CRC;
+       prog->headercrc2 = PROGHEADER_CRC_TENEBRAE;
        prog->max_edicts = 512;
        if (sv.protocol == PROTOCOL_QUAKE)
                prog->limit_edicts = 640; // before quake mission pack 1 this was 512
@@ -2929,15 +3222,7 @@ static void SV_VM_Setup(void)
 
        PRVM_End;
 
-       // see if there is a csprogs.dat installed, and if so, set the csqc_progcrc accordingly, this will be sent to connecting clients to tell them to only load a matching csprogs.dat file
-       sv.csqc_progname[0] = 0;
-       sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
-       sv.csqc_progsize = csprogsdatasize;
-       if (sv.csqc_progsize > 0)
-       {
-               strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
-               Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
-       }
+       SV_Prepare_CSQC();
 }
 
 void SV_VM_Begin(void)