]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sv_main.c
redesigned csqc shared entity .Version handling, now internally uses a
[xonotic/darkplaces.git] / sv_main.c
index aee839684f545fe84a8c5af8b2ed539cc3ef7d6a..8c8c5cab6bb6380d7ca350fff19d395912867af8 100644 (file)
--- a/sv_main.c
+++ b/sv_main.c
@@ -22,6 +22,7 @@ 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);
@@ -30,7 +31,7 @@ static void SV_VM_Setup();
 
 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);
+void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int maxsize, 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)"};
@@ -65,10 +66,12 @@ cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose cul
 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"};
@@ -150,7 +153,7 @@ cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singlepla
 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); 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 IP address + port number, and the client number, separated by underscores" };
+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" };
 
 
 server_t sv;
@@ -212,6 +215,7 @@ 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"},
@@ -262,6 +266,7 @@ 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"},
@@ -336,10 +341,12 @@ void SV_Init (void)
        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);
@@ -727,13 +734,39 @@ 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;
+       }
 
        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])
        {
@@ -745,6 +778,29 @@ 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)
+               {
+                       void *csqcbuf;
+                       fs_offset_t csqclen;
+                       int csqccrc;
+                       int i;
+                       char buf[NET_MAXMESSAGE];
+                       sizebuf_t sb;
+
+                       csqcbuf = FS_LoadFile(sv.csqc_progname, tempmempool, true, &csqclen);
+                       if(csqcbuf)
+                       {
+                               csqccrc = CRC_Block(csqcbuf, csqclen);
+                               sb.data = (void *) buf;
+                               sb.maxsize = sizeof(buf);
+                               i = 0;
+                               while(MakeDownloadPacket(sv.csqc_progname, csqcbuf, csqclen, csqccrc, i++, &sb, sv.protocol))
+                                       SV_WriteDemoMessage(client, &sb, false);
+                               Mem_Free(csqcbuf);
+                       }
+               }
+
                //[515]: init stufftext string (it is sent before svc_serverinfo)
                val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
                if (val)
@@ -798,7 +854,7 @@ 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);
 
@@ -814,28 +870,6 @@ void SV_SendServerinfo (client_t *client)
        client->num_pings = 0;
 #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);
-       }
 }
 
 /*
@@ -925,12 +959,14 @@ 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)
@@ -1163,6 +1199,30 @@ 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;
 }
 
@@ -1187,7 +1247,7 @@ 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;
@@ -1271,48 +1331,62 @@ 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;
+                                       }
                                }
                        }
                }
@@ -1325,14 +1399,14 @@ 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)
 {
        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;
@@ -1373,23 +1447,23 @@ 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);
+       EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
 
        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);
        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();
        }
 }
@@ -1693,23 +1767,24 @@ 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)
        {
@@ -1718,7 +1793,7 @@ 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;
@@ -1743,40 +1818,47 @@ 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
                //
@@ -1789,13 +1871,17 @@ 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)
@@ -1803,7 +1889,7 @@ 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;
 
@@ -1822,30 +1908,24 @@ 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;
@@ -1981,7 +2061,7 @@ 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);
@@ -2479,18 +2559,37 @@ 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);
+       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();
+       }
+
        worldmodel = Mod_ForName(modelname, false, true, true);
        if (!worldmodel || !worldmodel->TraceBox)
        {
@@ -2606,9 +2705,7 @@ 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]));
 
@@ -2631,10 +2728,10 @@ 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;
@@ -2691,6 +2788,7 @@ void SV_SpawnServer (const char *server)
 // 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)
@@ -2726,17 +2824,8 @@ 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)
@@ -2792,6 +2881,9 @@ 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;
@@ -2804,6 +2896,16 @@ 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)
@@ -2859,8 +2961,6 @@ 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 );