]> git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sv_send.c
protocol/dp8: Implement parting messages
[xonotic/darkplaces.git] / sv_send.c
index 32b78e39467e4733fa3a0d7707934e0dc7d47c47..a1ee1050ab3cb69b14251c0be1bdc3b7ef165e27 100644 (file)
--- a/sv_send.c
+++ b/sv_send.c
@@ -19,6 +19,29 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "quakedef.h"
+#include "sv_demo.h"
+
+extern cvar_t sv_airaccel_qw_stretchfactor;
+extern cvar_t sv_gameplayfix_customstats;
+extern cvar_t sv_warsowbunny_airforwardaccel;
+extern cvar_t sv_warsowbunny_accel;
+extern cvar_t sv_warsowbunny_topspeed;
+extern cvar_t sv_warsowbunny_turnaccel;
+extern cvar_t sv_warsowbunny_backtosideratio;
+extern cvar_t sv_onlycsqcnetworking;
+extern cvar_t sv_cullentities_trace_entityocclusion;
+extern cvar_t sv_cullentities_trace_samples_players;
+extern cvar_t sv_cullentities_trace_eyejitter;
+extern cvar_t sv_cullentities_trace_expand;
+extern cvar_t sv_cullentities_trace_delay_players;
+
+/*
+=============================================================================
+
+EVENT MESSAGES
+
+=============================================================================
+*/
 
 /*
 =================
@@ -78,7 +101,7 @@ void SV_BroadcastPrint(const char *msg)
                }
        }
 
-       if (sv_echobprint.integer && cls.state == ca_dedicated)
+       if (sv_echobprint.integer && !host_isclient.integer)
                Con_Print(msg);
 }
 
@@ -122,4 +145,1586 @@ void SV_ClientCommands(const char *fmt, ...)
 
        MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
        MSG_WriteString(&host_client->netconnection->message, string);
-}
\ No newline at end of file
+}
+
+/*
+==================
+SV_StartParticle
+
+Make sure the event gets sent to all clients
+==================
+*/
+void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
+{
+       int i;
+
+       if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
+               return;
+       MSG_WriteByte (&sv.datagram, svc_particle);
+       MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
+       MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
+       MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
+       for (i=0 ; i<3 ; i++)
+               MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
+       MSG_WriteByte (&sv.datagram, count);
+       MSG_WriteByte (&sv.datagram, color);
+       SV_FlushBroadcastMessages();
+}
+
+/*
+==================
+SV_StartEffect
+
+Make sure the event gets sent to all clients
+==================
+*/
+void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
+{
+       if (modelindex >= 256 || startframe >= 256)
+       {
+               if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
+                       return;
+               MSG_WriteByte (&sv.datagram, svc_effect2);
+               MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
+               MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
+               MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
+               MSG_WriteShort (&sv.datagram, modelindex);
+               MSG_WriteShort (&sv.datagram, startframe);
+               MSG_WriteByte (&sv.datagram, framecount);
+               MSG_WriteByte (&sv.datagram, framerate);
+       }
+       else
+       {
+               if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
+                       return;
+               MSG_WriteByte (&sv.datagram, svc_effect);
+               MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
+               MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
+               MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
+               MSG_WriteByte (&sv.datagram, modelindex);
+               MSG_WriteByte (&sv.datagram, startframe);
+               MSG_WriteByte (&sv.datagram, framecount);
+               MSG_WriteByte (&sv.datagram, framerate);
+       }
+       SV_FlushBroadcastMessages();
+}
+
+/*
+==================
+SV_StartSound
+
+Each entity can have eight independant sound sources, like voice,
+weapon, feet, etc.
+
+Channel 0 is an auto-allocate channel, the others override anything
+already running on that entity/channel pair.
+
+An attenuation of 0 will play full volume everywhere in the level.
+Larger attenuations will drop off.  (max 4 attenuation)
+
+==================
+*/
+void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int nvolume, float attenuation, qbool reliable, float speed)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       sizebuf_t *dest;
+       int sound_num, field_mask, i, ent, speed4000;
+
+       dest = (reliable ? &sv.reliable_datagram : &sv.datagram);
+
+       if (nvolume < 0 || nvolume > 255)
+       {
+               Con_Printf ("SV_StartSound: volume = %i\n", nvolume);
+               return;
+       }
+
+       if (attenuation < 0 || attenuation > 4)
+       {
+               Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
+               return;
+       }
+
+       if (!IS_CHAN(channel))
+       {
+               Con_Printf ("SV_StartSound: channel = %i\n", channel);
+               return;
+       }
+
+       channel = CHAN_ENGINE2NET(channel);
+
+       if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
+               return;
+
+// find precache number for sound
+       sound_num = SV_SoundIndex(sample, 1);
+       if (!sound_num)
+               return;
+
+       ent = PRVM_NUM_FOR_EDICT(entity);
+
+       speed4000 = (int)floor(speed * 4000.0f + 0.5f);
+       field_mask = 0;
+       if (nvolume != DEFAULT_SOUND_PACKET_VOLUME)
+               field_mask |= SND_VOLUME;
+       if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
+               field_mask |= SND_ATTENUATION;
+       if (speed4000 && speed4000 != 4000)
+               field_mask |= SND_SPEEDUSHORT4000;
+       if (ent >= 8192 || channel < 0 || channel > 7)
+               field_mask |= SND_LARGEENTITY;
+       if (sound_num >= 256)
+               field_mask |= SND_LARGESOUND;
+
+// directed messages go only to the entity they are targeted on
+       MSG_WriteByte (dest, svc_sound);
+       MSG_WriteByte (dest, field_mask);
+       if (field_mask & SND_VOLUME)
+               MSG_WriteByte (dest, nvolume);
+       if (field_mask & SND_ATTENUATION)
+               MSG_WriteByte (dest, (int)(attenuation*64));
+       if (field_mask & SND_SPEEDUSHORT4000)
+               MSG_WriteShort (dest, speed4000);
+       if (field_mask & SND_LARGEENTITY)
+       {
+               MSG_WriteShort (dest, ent);
+               MSG_WriteChar (dest, channel);
+       }
+       else
+               MSG_WriteShort (dest, (ent<<3) | channel);
+       if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
+               MSG_WriteShort (dest, sound_num);
+       else
+               MSG_WriteByte (dest, sound_num);
+       for (i = 0;i < 3;i++)
+               MSG_WriteCoord (dest, PRVM_serveredictvector(entity, origin)[i]+0.5*(PRVM_serveredictvector(entity, mins)[i]+PRVM_serveredictvector(entity, maxs)[i]), sv.protocol);
+
+       // TODO do we have to do anything here when dest is &sv.reliable_datagram?
+       if(!reliable)
+               SV_FlushBroadcastMessages();
+}
+
+/*
+==================
+SV_StartPointSound
+
+Nearly the same logic as SV_StartSound, except an origin
+instead of an entity is provided and channel is omitted.
+
+The entity sent to the client is 0 (world) and the channel
+is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
+function, therefore the check for it is omitted.
+
+==================
+*/
+void SV_StartPointSound (vec3_t origin, const char *sample, int nvolume, float attenuation, float speed)
+{
+       int sound_num, field_mask, i, speed4000;
+
+       if (nvolume < 0 || nvolume > 255)
+       {
+               Con_Printf ("SV_StartPointSound: volume = %i\n", nvolume);
+               return;
+       }
+
+       if (attenuation < 0 || attenuation > 4)
+       {
+               Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
+               return;
+       }
+
+       if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
+               return;
+
+       // find precache number for sound
+       sound_num = SV_SoundIndex(sample, 1);
+       if (!sound_num)
+               return;
+
+       speed4000 = (int)(speed * 40.0f);
+       field_mask = 0;
+       if (nvolume != DEFAULT_SOUND_PACKET_VOLUME)
+               field_mask |= SND_VOLUME;
+       if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
+               field_mask |= SND_ATTENUATION;
+       if (sound_num >= 256)
+               field_mask |= SND_LARGESOUND;
+       if (speed4000 && speed4000 != 4000)
+               field_mask |= SND_SPEEDUSHORT4000;
+
+// directed messages go only to the entity they are targeted on
+       MSG_WriteByte (&sv.datagram, svc_sound);
+       MSG_WriteByte (&sv.datagram, field_mask);
+       if (field_mask & SND_VOLUME)
+               MSG_WriteByte (&sv.datagram, nvolume);
+       if (field_mask & SND_ATTENUATION)
+               MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
+       if (field_mask & SND_SPEEDUSHORT4000)
+               MSG_WriteShort (&sv.datagram, speed4000);
+       // Always write entnum 0 for the world entity
+       MSG_WriteShort (&sv.datagram, (0<<3) | 0);
+       if (field_mask & SND_LARGESOUND)
+               MSG_WriteShort (&sv.datagram, sound_num);
+       else
+               MSG_WriteByte (&sv.datagram, sound_num);
+       for (i = 0;i < 3;i++)
+               MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
+       SV_FlushBroadcastMessages();
+}
+
+/*
+===============================================================================
+
+FRAME UPDATES
+
+===============================================================================
+*/
+
+/*
+=============================================================================
+
+The PVS must include a small area around the client to allow head bobbing
+or other small motion on the client side.  Otherwise, a bob might cause an
+entity that should be visible to not show up, especially when the bob
+crosses a waterline.
+
+=============================================================================
+*/
+
+static qbool SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       int i;
+       unsigned int sendflags;
+       unsigned int version;
+       unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
+       unsigned int customizeentityforclient;
+       unsigned int sendentity;
+       float f;
+       prvm_vec_t *v;
+       vec3_t cullmins, cullmaxs;
+       model_t *model;
+
+       // fast path for games that do not use legacy entity networking
+       // note: still networks clients even if they are legacy
+       sendentity = PRVM_serveredictfunction(ent, SendEntity);
+       if (sv_onlycsqcnetworking.integer && !sendentity && enumber > svs.maxclients)
+               return false;
+
+       // this 2 billion unit check is actually to detect NAN origins
+       // (we really don't want to send those)
+       if (!(VectorLength2(PRVM_serveredictvector(ent, origin)) < 2000000000.0*2000000000.0))
+               return false;
+
+       // EF_NODRAW prevents sending for any reason except for your own
+       // client, so we must keep all clients in this superset
+       effects = (unsigned)PRVM_serveredictfloat(ent, effects);
+
+       // we can omit invisible entities with no effects that are not clients
+       // LadyHavoc: this could kill tags attached to an invisible entity, I
+       // just hope we never have to support that case
+       i = (int)PRVM_serveredictfloat(ent, modelindex);
+       modelindex = (i >= 1 && i < MAX_MODELS && PRVM_serveredictstring(ent, model) && *PRVM_GetString(prog, PRVM_serveredictstring(ent, model)) && sv.models[i]) ? i : 0;
+
+       flags = 0;
+       i = (int)(PRVM_serveredictfloat(ent, glow_size) * 0.25f);
+       glowsize = (unsigned char)bound(0, i, 255);
+       if (PRVM_serveredictfloat(ent, glow_trail))
+               flags |= RENDER_GLOWTRAIL;
+       if (PRVM_serveredictedict(ent, viewmodelforclient))
+               flags |= RENDER_VIEWMODEL;
+
+       v = PRVM_serveredictvector(ent, color);
+       f = v[0]*256;
+       light[0] = (unsigned short)bound(0, f, 65535);
+       f = v[1]*256;
+       light[1] = (unsigned short)bound(0, f, 65535);
+       f = v[2]*256;
+       light[2] = (unsigned short)bound(0, f, 65535);
+       f = PRVM_serveredictfloat(ent, light_lev);
+       light[3] = (unsigned short)bound(0, f, 65535);
+       lightstyle = (unsigned char)PRVM_serveredictfloat(ent, style);
+       lightpflags = (unsigned char)PRVM_serveredictfloat(ent, pflags);
+
+       if (gamemode == GAME_TENEBRAE)
+       {
+               // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
+               if (effects & 16)
+               {
+                       effects &= ~16;
+                       lightpflags |= PFLAGS_FULLDYNAMIC;
+               }
+               // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
+               if (effects & 32)
+               {
+                       effects &= ~32;
+                       light[0] = (int)(0.2*256);
+                       light[1] = (int)(1.0*256);
+                       light[2] = (int)(0.2*256);
+                       light[3] = 200;
+                       lightpflags |= PFLAGS_FULLDYNAMIC;
+               }
+       }
+
+       specialvisibilityradius = 0;
+       if (lightpflags & PFLAGS_FULLDYNAMIC)
+               specialvisibilityradius = max(specialvisibilityradius, light[3]);
+       if (glowsize)
+               specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
+       if (flags & RENDER_GLOWTRAIL)
+               specialvisibilityradius = max(specialvisibilityradius, 100);
+       if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
+       {
+               if (effects & EF_BRIGHTFIELD)
+                       specialvisibilityradius = max(specialvisibilityradius, 80);
+               if (effects & EF_MUZZLEFLASH)
+                       specialvisibilityradius = max(specialvisibilityradius, 100);
+               if (effects & EF_BRIGHTLIGHT)
+                       specialvisibilityradius = max(specialvisibilityradius, 400);
+               if (effects & EF_DIMLIGHT)
+                       specialvisibilityradius = max(specialvisibilityradius, 200);
+               if (effects & EF_RED)
+                       specialvisibilityradius = max(specialvisibilityradius, 200);
+               if (effects & EF_BLUE)
+                       specialvisibilityradius = max(specialvisibilityradius, 200);
+               if (effects & EF_FLAME)
+                       specialvisibilityradius = max(specialvisibilityradius, 250);
+               if (effects & EF_STARDUST)
+                       specialvisibilityradius = max(specialvisibilityradius, 100);
+       }
+
+       // early culling checks
+       // (final culling is done by SV_MarkWriteEntityStateToClient)
+       customizeentityforclient = PRVM_serveredictfunction(ent, customizeentityforclient);
+       if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
+               return false;
+
+       *cs = defaultstate;
+       cs->active = ACTIVE_NETWORK;
+       cs->number = enumber;
+       VectorCopy(PRVM_serveredictvector(ent, origin), cs->origin);
+       VectorCopy(PRVM_serveredictvector(ent, angles), cs->angles);
+       cs->flags = flags;
+       cs->effects = effects;
+       cs->colormap = (unsigned)PRVM_serveredictfloat(ent, colormap);
+       cs->modelindex = modelindex;
+       cs->skin = (unsigned)PRVM_serveredictfloat(ent, skin);
+       cs->frame = (unsigned)PRVM_serveredictfloat(ent, frame);
+       cs->viewmodelforclient = PRVM_serveredictedict(ent, viewmodelforclient);
+       cs->exteriormodelforclient = PRVM_serveredictedict(ent, exteriormodeltoclient);
+       cs->nodrawtoclient = PRVM_serveredictedict(ent, nodrawtoclient);
+       cs->drawonlytoclient = PRVM_serveredictedict(ent, drawonlytoclient);
+       cs->customizeentityforclient = customizeentityforclient;
+       cs->tagentity = PRVM_serveredictedict(ent, tag_entity);
+       cs->tagindex = (unsigned char)PRVM_serveredictfloat(ent, tag_index);
+       cs->glowsize = glowsize;
+       cs->traileffectnum = PRVM_serveredictfloat(ent, traileffectnum);
+
+       // don't need to init cs->colormod because the defaultstate did that for us
+       //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
+       v = PRVM_serveredictvector(ent, colormod);
+       if (VectorLength2(v))
+       {
+               i = (int)(v[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
+               i = (int)(v[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
+               i = (int)(v[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
+       }
+
+       // don't need to init cs->glowmod because the defaultstate did that for us
+       //cs->glowmod[0] = cs->glowmod[1] = cs->glowmod[2] = 32;
+       v = PRVM_serveredictvector(ent, glowmod);
+       if (VectorLength2(v))
+       {
+               i = (int)(v[0] * 32.0f);cs->glowmod[0] = bound(0, i, 255);
+               i = (int)(v[1] * 32.0f);cs->glowmod[1] = bound(0, i, 255);
+               i = (int)(v[2] * 32.0f);cs->glowmod[2] = bound(0, i, 255);
+       }
+
+       cs->modelindex = modelindex;
+
+       cs->alpha = 255;
+       f = (PRVM_serveredictfloat(ent, alpha) * 255.0f);
+       if (f)
+       {
+               i = (int)f;
+               cs->alpha = (unsigned char)bound(0, i, 255);
+       }
+       // halflife
+       f = (PRVM_serveredictfloat(ent, renderamt));
+       if (f)
+       {
+               i = (int)f;
+               cs->alpha = (unsigned char)bound(0, i, 255);
+       }
+
+       cs->scale = 16;
+       f = (PRVM_serveredictfloat(ent, scale) * 16.0f);
+       if (f)
+       {
+               i = (int)f;
+               cs->scale = (unsigned char)bound(0, i, 255);
+       }
+
+       cs->glowcolor = 254;
+       f = PRVM_serveredictfloat(ent, glow_color);
+       if (f)
+               cs->glowcolor = (int)f;
+
+       if (PRVM_serveredictfloat(ent, fullbright))
+               cs->effects |= EF_FULLBRIGHT;
+
+       f = PRVM_serveredictfloat(ent, modelflags);
+       if (f)
+               cs->effects |= ((unsigned int)f & 0xff) << 24;
+
+       if (PRVM_serveredictfloat(ent, movetype) == MOVETYPE_STEP)
+               cs->flags |= RENDER_STEP;
+       if (cs->number != sv.writeentitiestoclient_cliententitynumber && (cs->effects & EF_LOWPRECISION) && cs->origin[0] >= -32768 && cs->origin[1] >= -32768 && cs->origin[2] >= -32768 && cs->origin[0] <= 32767 && cs->origin[1] <= 32767 && cs->origin[2] <= 32767)
+               cs->flags |= RENDER_LOWPRECISION;
+       if (PRVM_serveredictfloat(ent, colormap) >= 1024)
+               cs->flags |= RENDER_COLORMAPPED;
+       if (cs->viewmodelforclient)
+               cs->flags |= RENDER_VIEWMODEL; // show relative to the view
+
+       if (PRVM_serveredictfloat(ent, sendcomplexanimation))
+       {
+               cs->flags |= RENDER_COMPLEXANIMATION;
+               if (PRVM_serveredictfloat(ent, skeletonindex) >= 1)
+                       cs->skeletonobject = ent->priv.server->skeleton;
+               cs->framegroupblend[0].frame = PRVM_serveredictfloat(ent, frame);
+               cs->framegroupblend[1].frame = PRVM_serveredictfloat(ent, frame2);
+               cs->framegroupblend[2].frame = PRVM_serveredictfloat(ent, frame3);
+               cs->framegroupblend[3].frame = PRVM_serveredictfloat(ent, frame4);
+               cs->framegroupblend[0].start = PRVM_serveredictfloat(ent, frame1time);
+               cs->framegroupblend[1].start = PRVM_serveredictfloat(ent, frame2time);
+               cs->framegroupblend[2].start = PRVM_serveredictfloat(ent, frame3time);
+               cs->framegroupblend[3].start = PRVM_serveredictfloat(ent, frame4time);
+               cs->framegroupblend[1].lerp = PRVM_serveredictfloat(ent, lerpfrac);
+               cs->framegroupblend[2].lerp = PRVM_serveredictfloat(ent, lerpfrac3);
+               cs->framegroupblend[3].lerp = PRVM_serveredictfloat(ent, lerpfrac4);
+               cs->framegroupblend[0].lerp = 1.0f - cs->framegroupblend[1].lerp - cs->framegroupblend[2].lerp - cs->framegroupblend[3].lerp;
+               cs->frame = 0; // don't need the legacy frame
+       }
+
+       cs->light[0] = light[0];
+       cs->light[1] = light[1];
+       cs->light[2] = light[2];
+       cs->light[3] = light[3];
+       cs->lightstyle = lightstyle;
+       cs->lightpflags = lightpflags;
+
+       cs->specialvisibilityradius = specialvisibilityradius;
+
+       // 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_GetModelByIndex(modelindex)) && (model->type != mod_null))
+       {
+               float scale = cs->scale * (1.0f / 16.0f);
+               if (cs->angles[0] || cs->angles[2]) // pitch and roll
+               {
+                       VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
+                       VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
+               }
+               else if (cs->angles[1] || ((effects | model->effects) & EF_ROTATE))
+               {
+                       VectorMA(cs->origin, scale, model->yawmins, cullmins);
+                       VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
+               }
+               else
+               {
+                       VectorMA(cs->origin, scale, model->normalmins, cullmins);
+                       VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
+               }
+       }
+       else
+       {
+               // if there is no model (or it could not be loaded), use the physics box
+               VectorAdd(cs->origin, PRVM_serveredictvector(ent, mins), cullmins);
+               VectorAdd(cs->origin, PRVM_serveredictvector(ent, maxs), cullmaxs);
+       }
+       if (specialvisibilityradius)
+       {
+               cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
+               cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
+               cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
+               cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
+               cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
+               cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
+       }
+
+       // calculate center of bbox for network prioritization purposes
+       VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
+
+       // if culling box has moved, update pvs cluster links
+       if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
+       {
+               VectorCopy(cullmins, ent->priv.server->cullmins);
+               VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
+               // a value of -1 for pvs_numclusters indicates that the links are not
+               // cached, and should be re-tested each time, this is the case if the
+               // culling box touches too many pvs clusters to store, or if the world
+               // model does not support FindBoxClusters
+               ent->priv.server->pvs_numclusters = -1;
+               if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
+               {
+                       i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
+                       if (i <= MAX_ENTITYCLUSTERS)
+                               ent->priv.server->pvs_numclusters = i;
+               }
+       }
+
+       // 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)
+       if (sendentity)
+       {
+               sendflags = (unsigned int)PRVM_serveredictfloat(ent, SendFlags);
+               PRVM_serveredictfloat(ent, SendFlags) = 0;
+               // legacy self.Version system
+               if ((version = (unsigned int)PRVM_serveredictfloat(ent, Version)))
+               {
+                       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;
+               // mark it as inactive for non-csqc networking
+               cs->active = ACTIVE_SHARED;
+       }
+
+       return true;
+}
+
+static void SV_PrepareEntitiesForSending(void)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       int e;
+       prvm_edict_t *ent;
+       // send all entities that touch the pvs
+       sv.numsendentities = 0;
+       sv.sendentitiesindex[0] = NULL;
+       memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
+       for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
+       {
+               if (!ent->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
+               {
+                       sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
+                       sv.numsendentities++;
+               }
+       }
+}
+
+#define MAX_LINEOFSIGHTTRACES 64
+
+qbool SV_CanSeeBox(int numtraces, vec_t eyejitter, vec_t enlarge, vec_t entboxexpand, vec3_t eye, vec3_t entboxmins, vec3_t entboxmaxs)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       float pitchsign;
+       float alpha;
+       float starttransformed[3], endtransformed[3];
+       float boxminstransformed[3], boxmaxstransformed[3];
+       float localboxcenter[3], localboxextents[3], localboxmins[3], localboxmaxs[3];
+       int blocked = 0;
+       int traceindex;
+       int originalnumtouchedicts;
+       int numtouchedicts = 0;
+       int touchindex;
+       matrix4x4_t matrix, imatrix;
+       model_t *model;
+       prvm_edict_t *touch;
+       static prvm_edict_t *touchedicts[MAX_EDICTS];
+       vec3_t eyemins, eyemaxs, start;
+       vec3_t boxmins, boxmaxs;
+       vec3_t clipboxmins, clipboxmaxs;
+       vec3_t endpoints[MAX_LINEOFSIGHTTRACES];
+
+       numtraces = min(numtraces, MAX_LINEOFSIGHTTRACES);
+
+       // jitter the eye location within this box
+       eyemins[0] = eye[0] - eyejitter;
+       eyemaxs[0] = eye[0] + eyejitter;
+       eyemins[1] = eye[1] - eyejitter;
+       eyemaxs[1] = eye[1] + eyejitter;
+       eyemins[2] = eye[2] - eyejitter;
+       eyemaxs[2] = eye[2] + eyejitter;
+       // expand the box a little
+       boxmins[0] = (enlarge+1) * entboxmins[0] - enlarge * entboxmaxs[0] - entboxexpand;
+       boxmaxs[0] = (enlarge+1) * entboxmaxs[0] - enlarge * entboxmins[0] + entboxexpand;
+       boxmins[1] = (enlarge+1) * entboxmins[1] - enlarge * entboxmaxs[1] - entboxexpand;
+       boxmaxs[1] = (enlarge+1) * entboxmaxs[1] - enlarge * entboxmins[1] + entboxexpand;
+       boxmins[2] = (enlarge+1) * entboxmins[2] - enlarge * entboxmaxs[2] - entboxexpand;
+       boxmaxs[2] = (enlarge+1) * entboxmaxs[2] - enlarge * entboxmins[2] + entboxexpand;
+
+       VectorMAM(0.5f, boxmins, 0.5f, boxmaxs, endpoints[0]);
+       for (traceindex = 1;traceindex < numtraces;traceindex++)
+               VectorSet(endpoints[traceindex], lhrandom(boxmins[0], boxmaxs[0]), lhrandom(boxmins[1], boxmaxs[1]), lhrandom(boxmins[2], boxmaxs[2]));
+
+       // calculate sweep box for the entire swarm of traces
+       VectorCopy(eyemins, clipboxmins);
+       VectorCopy(eyemaxs, clipboxmaxs);
+       for (traceindex = 0;traceindex < numtraces;traceindex++)
+       {
+               clipboxmins[0] = min(clipboxmins[0], endpoints[traceindex][0]);
+               clipboxmins[1] = min(clipboxmins[1], endpoints[traceindex][1]);
+               clipboxmins[2] = min(clipboxmins[2], endpoints[traceindex][2]);
+               clipboxmaxs[0] = max(clipboxmaxs[0], endpoints[traceindex][0]);
+               clipboxmaxs[1] = max(clipboxmaxs[1], endpoints[traceindex][1]);
+               clipboxmaxs[2] = max(clipboxmaxs[2], endpoints[traceindex][2]);
+       }
+
+       // get the list of entities in the sweep box
+       if (sv_cullentities_trace_entityocclusion.integer)
+               numtouchedicts = SV_EntitiesInBox(clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
+       if (numtouchedicts > MAX_EDICTS)
+       {
+               // this never happens
+               Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
+               numtouchedicts = MAX_EDICTS;
+       }
+       // iterate the entities found in the sweep box and filter them
+       originalnumtouchedicts = numtouchedicts;
+       numtouchedicts = 0;
+       for (touchindex = 0;touchindex < originalnumtouchedicts;touchindex++)
+       {
+               touch = touchedicts[touchindex];
+               if (PRVM_serveredictfloat(touch, solid) != SOLID_BSP)
+                       continue;
+               model = SV_GetModelFromEdict(touch);
+               if (!model || !model->brush.TraceLineOfSight)
+                       continue;
+               // skip obviously transparent entities
+               alpha = PRVM_serveredictfloat(touch, alpha);
+               if (alpha && alpha < 1)
+                       continue;
+               if ((int)PRVM_serveredictfloat(touch, effects) & EF_ADDITIVE)
+                       continue;
+               touchedicts[numtouchedicts++] = touch;
+       }
+
+       // now that we have a filtered list of "interesting" entities, fire each
+       // ray against all of them, this gives us an early-out case when something
+       // is visible (which it often is)
+
+       for (traceindex = 0;traceindex < numtraces;traceindex++)
+       {
+               VectorSet(start, lhrandom(eyemins[0], eyemaxs[0]), lhrandom(eyemins[1], eyemaxs[1]), lhrandom(eyemins[2], eyemaxs[2]));
+               // check world occlusion
+               if (sv.worldmodel && sv.worldmodel->brush.TraceLineOfSight)
+                       if (!sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, start, endpoints[traceindex], boxmins, boxmaxs))
+                               continue;
+               for (touchindex = 0;touchindex < numtouchedicts;touchindex++)
+               {
+                       touch = touchedicts[touchindex];
+                       model = SV_GetModelFromEdict(touch);
+                       if(model && model->brush.TraceLineOfSight)
+                       {
+                               // get the entity matrix
+                               pitchsign = SV_GetPitchSign(prog, touch);
+                               Matrix4x4_CreateFromQuakeEntity(&matrix, PRVM_serveredictvector(touch, origin)[0], PRVM_serveredictvector(touch, origin)[1], PRVM_serveredictvector(touch, origin)[2], pitchsign * PRVM_serveredictvector(touch, angles)[0], PRVM_serveredictvector(touch, angles)[1], PRVM_serveredictvector(touch, angles)[2], 1);
+                               Matrix4x4_Invert_Simple(&imatrix, &matrix);
+                               // see if the ray hits this entity
+                               Matrix4x4_Transform(&imatrix, start, starttransformed);
+                               Matrix4x4_Transform(&imatrix, endpoints[traceindex], endtransformed);
+                               Matrix4x4_Transform(&imatrix, boxmins, boxminstransformed);
+                               Matrix4x4_Transform(&imatrix, boxmaxs, boxmaxstransformed);
+                               // transform the AABB to local space
+                               VectorMAM(0.5f, boxminstransformed, 0.5f, boxmaxstransformed, localboxcenter);
+                               localboxextents[0] = fabs(boxmaxstransformed[0] - localboxcenter[0]);
+                               localboxextents[1] = fabs(boxmaxstransformed[1] - localboxcenter[1]);
+                               localboxextents[2] = fabs(boxmaxstransformed[2] - localboxcenter[2]);
+                               localboxmins[0] = localboxcenter[0] - localboxextents[0];
+                               localboxmins[1] = localboxcenter[1] - localboxextents[1];
+                               localboxmins[2] = localboxcenter[2] - localboxextents[2];
+                               localboxmaxs[0] = localboxcenter[0] + localboxextents[0];
+                               localboxmaxs[1] = localboxcenter[1] + localboxextents[1];
+                               localboxmaxs[2] = localboxcenter[2] + localboxextents[2];
+                               if (!model->brush.TraceLineOfSight(model, starttransformed, endtransformed, localboxmins, localboxmaxs))
+                               {
+                                       blocked++;
+                                       break;
+                               }
+                       }
+               }
+               // check if the ray was blocked
+               if (touchindex < numtouchedicts)
+                       continue;
+               // return if the ray was not blocked
+               return true;
+       }
+
+       // no rays survived
+       return false;
+}
+
+void SV_MarkWriteEntityStateToClient(entity_state_t *s)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       int isbmodel;
+       model_t *model;
+       prvm_edict_t *ed;
+       if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
+               return;
+       sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
+       sv.writeentitiestoclient_stats_totalentities++;
+
+       if (s->customizeentityforclient)
+       {
+               PRVM_serverglobalfloat(time) = sv.time;
+               PRVM_serverglobaledict(self) = s->number;
+               PRVM_serverglobaledict(other) = sv.writeentitiestoclient_cliententitynumber;
+               prog->ExecuteProgram(prog, s->customizeentityforclient, "customizeentityforclient: NULL function");
+               if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
+                       return;
+       }
+
+       // never reject player
+       if (s->number != sv.writeentitiestoclient_cliententitynumber)
+       {
+               // check various rejection conditions
+               if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
+                       return;
+               if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
+                       return;
+               if (s->effects & EF_NODRAW)
+                       return;
+               // LadyHavoc: only send entities with a model or important effects
+               if (!s->modelindex && s->specialvisibilityradius == 0)
+                       return;
+
+               isbmodel = (model = SV_GetModelByIndex(s->modelindex)) != NULL && model->name[0] == '*';
+               // viewmodels don't have visibility checking
+               if (s->viewmodelforclient)
+               {
+                       if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
+                               return;
+               }
+               else if (s->tagentity)
+               {
+                       // tag attached entities simply check their parent
+                       if (!sv.sendentitiesindex[s->tagentity])
+                               return;
+                       SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
+                       if (sv.sententities[s->tagentity] != sv.sententitiesmark)
+                               return;
+               }
+               // always send world submodels in newer protocols because they don't
+               // generate much traffic (in old protocols they hog bandwidth)
+               // but only if sv_cullentities_nevercullbmodels is off
+               else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
+               {
+                       // entity has survived every check so far, check if visible
+                       ed = PRVM_EDICT_NUM(s->number);
+
+                       // if not touching a visible leaf
+                       if (sv_cullentities_pvs.integer && !r_novis.integer && !r_trippy.integer && sv.writeentitiestoclient_pvsbytes)
+                       {
+                               if (ed->priv.server->pvs_numclusters < 0)
+                               {
+                                       // entity too big for clusters list
+                                       if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
+                                       {
+                                               sv.writeentitiestoclient_stats_culled_pvs++;
+                                               return;
+                                       }
+                               }
+                               else
+                               {
+                                       int i;
+                                       // check cached clusters list
+                                       for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
+                                               if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
+                                                       break;
+                                       if (i == ed->priv.server->pvs_numclusters)
+                                       {
+                                               sv.writeentitiestoclient_stats_culled_pvs++;
+                                               return;
+                                       }
+                               }
+                       }
+
+                       // or not seen by random tracelines
+                       if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel && sv.worldmodel->brush.TraceLineOfSight && !r_trippy.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;
+
+                               if(samples > 0)
+                               {
+                                       int eyeindex;
+                                       for (eyeindex = 0;eyeindex < sv.writeentitiestoclient_numeyes;eyeindex++)
+                                               if(SV_CanSeeBox(samples, sv_cullentities_trace_eyejitter.value, enlarge, sv_cullentities_trace_expand.value, sv.writeentitiestoclient_eyes[eyeindex], ed->priv.server->cullmins, ed->priv.server->cullmaxs))
+                                                       break;
+                                       if(eyeindex < sv.writeentitiestoclient_numeyes)
+                                               svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
+                                                       host.realtime + (
+                                                               s->number <= svs.maxclients
+                                                                       ? sv_cullentities_trace_delay_players.value
+                                                                       : sv_cullentities_trace_delay.value
+                                                       );
+                                       else if (host.realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
+                                       {
+                                               sv.writeentitiestoclient_stats_culled_trace++;
+                                               return;
+                                       }
+                               }
+                       }
+               }
+       }
+
+       // this just marks it for sending
+       // FIXME: it would be more efficient to send here, but the entity
+       // compressor isn't that flexible
+       sv.writeentitiestoclient_stats_visibleentities++;
+       sv.sententities[s->number] = sv.sententitiesmark;
+}
+
+#if MAX_LEVELNETWORKEYES > 0
+#define MAX_EYE_RECURSION 1 // increase if recursion gets supported by portals
+void SV_AddCameraEyes(void)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       int e, i, j, k;
+       prvm_edict_t *ed;
+       static int cameras[MAX_LEVELNETWORKEYES];
+       static vec3_t camera_origins[MAX_LEVELNETWORKEYES];
+       static int eye_levels[MAX_CLIENTNETWORKEYES];
+       int n_cameras = 0;
+       vec3_t mi, ma;
+
+       for(i = 0; i < sv.writeentitiestoclient_numeyes; ++i)
+               eye_levels[i] = 0;
+
+       // check line of sight to portal entities and add them to PVS
+       for (e = 1, ed = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ed = PRVM_NEXT_EDICT(ed))
+       {
+               if (!ed->free)
+               {
+                       if(PRVM_serveredictfunction(ed, camera_transform))
+                       {
+                               PRVM_serverglobalfloat(time) = sv.time;
+                               PRVM_serverglobaledict(self) = e;
+                               PRVM_serverglobaledict(other) = sv.writeentitiestoclient_cliententitynumber;
+                               VectorCopy(sv.writeentitiestoclient_eyes[0], PRVM_serverglobalvector(trace_endpos));
+                               VectorCopy(sv.writeentitiestoclient_eyes[0], PRVM_G_VECTOR(OFS_PARM0));
+                               VectorClear(PRVM_G_VECTOR(OFS_PARM1));
+                               prog->ExecuteProgram(prog, PRVM_serveredictfunction(ed, camera_transform), "QC function e.camera_transform is missing");
+                               if(!VectorCompare(PRVM_serverglobalvector(trace_endpos), sv.writeentitiestoclient_eyes[0]))
+                               {
+                                       VectorCopy(PRVM_serverglobalvector(trace_endpos), camera_origins[n_cameras]);
+                                       cameras[n_cameras] = e;
+                                       ++n_cameras;
+                                       if(n_cameras >= MAX_LEVELNETWORKEYES)
+                                               break;
+                               }
+                       }
+               }
+       }
+
+       if(!n_cameras)
+               return;
+
+       // i is loop counter, is reset to 0 when an eye got added
+       // j is camera index to check
+       for(i = 0, j = 0; sv.writeentitiestoclient_numeyes < MAX_CLIENTNETWORKEYES && i < n_cameras; ++i, ++j, j %= n_cameras)
+       {
+               if(!cameras[j])
+                       continue;
+               ed = PRVM_EDICT_NUM(cameras[j]);
+               VectorAdd(PRVM_serveredictvector(ed, origin), PRVM_serveredictvector(ed, mins), mi);
+               VectorAdd(PRVM_serveredictvector(ed, origin), PRVM_serveredictvector(ed, maxs), ma);
+               for(k = 0; k < sv.writeentitiestoclient_numeyes; ++k)
+               if(eye_levels[k] <= MAX_EYE_RECURSION)
+               {
+                       if(SV_CanSeeBox(sv_cullentities_trace_samples.integer, sv_cullentities_trace_eyejitter.value, sv_cullentities_trace_enlarge.value, sv_cullentities_trace_expand.value, sv.writeentitiestoclient_eyes[k], mi, ma))
+                       {
+                               eye_levels[sv.writeentitiestoclient_numeyes] = eye_levels[k] + 1;
+                               VectorCopy(camera_origins[j], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
+                               // Con_Printf("added eye %d: %f %f %f because we can see %f %f %f .. %f %f %f from eye %d\n", j, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][0], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][1], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][2], mi[0], mi[1], mi[2], ma[0], ma[1], ma[2], k);
+                               sv.writeentitiestoclient_numeyes++;
+                               cameras[j] = 0;
+                               i = 0;
+                               break;
+                       }
+               }
+       }
+}
+#else
+void SV_AddCameraEyes(void)
+{
+}
+#endif
+
+/*
+=============
+SV_CleanupEnts
+
+=============
+*/
+static void SV_CleanupEnts (void)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       int             e;
+       prvm_edict_t    *ent;
+
+       ent = PRVM_NEXT_EDICT(prog->edicts);
+       for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
+               PRVM_serveredictfloat(ent, effects) = (int)PRVM_serveredictfloat(ent, effects) & ~EF_MUZZLEFLASH;
+}
+
+/*
+==================
+SV_WriteClientdataToMessage
+
+==================
+*/
+void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       int             bits;
+       int             i;
+       prvm_edict_t    *other;
+       int             items;
+       vec3_t  punchvector;
+       int             viewzoom;
+       const char *s;
+       float   *statsf = (float *)stats;
+       float gravity;
+
+//
+// send a damage message
+//
+       if (PRVM_serveredictfloat(ent, dmg_take) || PRVM_serveredictfloat(ent, dmg_save))
+       {
+               other = PRVM_PROG_TO_EDICT(PRVM_serveredictedict(ent, dmg_inflictor));
+               MSG_WriteByte (msg, svc_damage);
+               MSG_WriteByte (msg, (int)PRVM_serveredictfloat(ent, dmg_save));
+               MSG_WriteByte (msg, (int)PRVM_serveredictfloat(ent, dmg_take));
+               for (i=0 ; i<3 ; i++)
+                       MSG_WriteCoord (msg, PRVM_serveredictvector(other, origin)[i] + 0.5*(PRVM_serveredictvector(other, mins)[i] + PRVM_serveredictvector(other, maxs)[i]), sv.protocol);
+
+               PRVM_serveredictfloat(ent, dmg_take) = 0;
+               PRVM_serveredictfloat(ent, dmg_save) = 0;
+       }
+
+//
+// send the current viewpos offset from the view entity
+//
+       SV_SetIdealPitch ();            // how much to look up / down ideally
+
+// a fixangle might get lost in a dropped packet.  Oh well.
+       if(PRVM_serveredictfloat(ent, fixangle))
+       {
+               // angle fixing was requested by global thinking code...
+               // so store the current angles for later use
+               VectorCopy(PRVM_serveredictvector(ent, angles), host_client->fixangle_angles);
+               host_client->fixangle_angles_set = true;
+
+               // and clear fixangle for the next frame
+               PRVM_serveredictfloat(ent, fixangle) = 0;
+       }
+
+       if (host_client->fixangle_angles_set)
+       {
+               MSG_WriteByte (msg, svc_setangle);
+               for (i=0 ; i < 3 ; i++)
+                       MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
+               host_client->fixangle_angles_set = false;
+       }
+
+       // the runes are in serverflags, pack them into the items value, also pack
+       // in the items2 value for mission pack huds
+       // (used only in the mission packs, which do not use serverflags)
+       items = (int)PRVM_serveredictfloat(ent, items) | ((int)PRVM_serveredictfloat(ent, items2) << 23) | ((int)PRVM_serverglobalfloat(serverflags) << 28);
+
+       VectorCopy(PRVM_serveredictvector(ent, punchvector), punchvector);
+
+       // cache weapon model name and index in client struct to save time
+       // (this search can be almost 1% of cpu time!)
+       s = PRVM_GetString(prog, PRVM_serveredictstring(ent, weaponmodel));
+       if (strcmp(s, client->weaponmodel))
+       {
+               strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
+               client->weaponmodelindex = SV_ModelIndex(s, 1);
+       }
+
+       viewzoom = (int)(PRVM_serveredictfloat(ent, viewzoom) * 255.0f);
+       if (viewzoom == 0)
+               viewzoom = 255;
+
+       bits = 0;
+
+       if ((int)PRVM_serveredictfloat(ent, flags) & FL_ONGROUND)
+               bits |= SU_ONGROUND;
+       if (PRVM_serveredictfloat(ent, waterlevel) >= 2)
+               bits |= SU_INWATER;
+       if (PRVM_serveredictfloat(ent, idealpitch))
+               bits |= SU_IDEALPITCH;
+
+       for (i=0 ; i<3 ; i++)
+       {
+               if (PRVM_serveredictvector(ent, punchangle)[i])
+                       bits |= (SU_PUNCH1<<i);
+               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)
+                       if (punchvector[i])
+                               bits |= (SU_PUNCHVEC1<<i);
+               if (PRVM_serveredictvector(ent, velocity)[i])
+                       bits |= (SU_VELOCITY1<<i);
+       }
+
+       gravity = PRVM_serveredictfloat(ent, gravity);if (!gravity) gravity = 1.0f;
+
+       memset(stats, 0, sizeof(int[MAX_CL_STATS]));
+       stats[STAT_VIEWHEIGHT] = (int)PRVM_serveredictvector(ent, view_ofs)[2];
+       stats[STAT_ITEMS] = items;
+       stats[STAT_WEAPONFRAME] = (int)PRVM_serveredictfloat(ent, weaponframe);
+       stats[STAT_ARMOR] = (int)PRVM_serveredictfloat(ent, armorvalue);
+       stats[STAT_WEAPON] = client->weaponmodelindex;
+       stats[STAT_HEALTH] = (int)PRVM_serveredictfloat(ent, health);
+       stats[STAT_AMMO] = (int)PRVM_serveredictfloat(ent, currentammo);
+       stats[STAT_SHELLS] = (int)PRVM_serveredictfloat(ent, ammo_shells);
+       stats[STAT_NAILS] = (int)PRVM_serveredictfloat(ent, ammo_nails);
+       stats[STAT_ROCKETS] = (int)PRVM_serveredictfloat(ent, ammo_rockets);
+       stats[STAT_CELLS] = (int)PRVM_serveredictfloat(ent, ammo_cells);
+       stats[STAT_ACTIVEWEAPON] = (int)PRVM_serveredictfloat(ent, weapon);
+       stats[STAT_VIEWZOOM] = viewzoom;
+       stats[STAT_TOTALSECRETS] = (int)PRVM_serverglobalfloat(total_secrets);
+       stats[STAT_TOTALMONSTERS] = (int)PRVM_serverglobalfloat(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] = PRVM_serverglobalfloat(found_secrets);
+       //stats[STAT_MONSTERS] = PRVM_serverglobalfloat(killed_monsters);
+
+       if(!sv_gameplayfix_customstats.integer)
+       {
+               statsf[STAT_MOVEVARS_AIRACCEL_QW_STRETCHFACTOR] = sv_airaccel_qw_stretchfactor.value;
+               statsf[STAT_MOVEVARS_AIRCONTROL_PENALTY] = sv_aircontrol_penalty.value;
+               statsf[STAT_MOVEVARS_AIRSPEEDLIMIT_NONQW] = sv_airspeedlimit_nonqw.value;               
+               statsf[STAT_MOVEVARS_AIRSTRAFEACCEL_QW] = sv_airstrafeaccel_qw.value;
+               statsf[STAT_MOVEVARS_AIRCONTROL_POWER] = sv_aircontrol_power.value;
+               // movement settings for prediction
+               // note: these are not sent in protocols with lower MAX_CL_STATS limits
+               stats[STAT_MOVEFLAGS] = MOVEFLAG_VALID
+                       | (sv_gameplayfix_q2airaccelerate.integer ? MOVEFLAG_Q2AIRACCELERATE : 0)
+                       | (sv_gameplayfix_nogravityonground.integer ? MOVEFLAG_NOGRAVITYONGROUND : 0)
+                       | (sv_gameplayfix_gravityunaffectedbyticrate.integer ? MOVEFLAG_GRAVITYUNAFFECTEDBYTICRATE : 0)
+               ;
+               statsf[STAT_MOVEVARS_WARSOWBUNNY_AIRFORWARDACCEL] = sv_warsowbunny_airforwardaccel.value;
+               statsf[STAT_MOVEVARS_WARSOWBUNNY_ACCEL] = sv_warsowbunny_accel.value;
+               statsf[STAT_MOVEVARS_WARSOWBUNNY_TOPSPEED] = sv_warsowbunny_topspeed.value;
+               statsf[STAT_MOVEVARS_WARSOWBUNNY_TURNACCEL] = sv_warsowbunny_turnaccel.value;
+               statsf[STAT_MOVEVARS_WARSOWBUNNY_BACKTOSIDERATIO] = sv_warsowbunny_backtosideratio.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;
+               statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;     
+               statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
+               statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
+               statsf[STAT_MOVEVARS_TIMESCALE] = host_timescale.value;
+               statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
+               statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
+               statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
+               statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
+               statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
+               statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
+               statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
+               statsf[STAT_MOVEVARS_ENTGRAVITY] = gravity;
+               statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
+               statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
+               statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
+               statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
+               statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
+               statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
+       }
+
+       if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
+       {
+               if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
+               bits |= SU_ITEMS;
+               if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
+               if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
+               bits |= SU_WEAPON;
+               // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
+               if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
+                       if (viewzoom != 255)
+                               bits |= SU_VIEWZOOM;
+       }
+
+       if (bits >= 65536)
+               bits |= SU_EXTEND1;
+       if (bits >= 16777216)
+               bits |= SU_EXTEND2;
+
+       // send the data
+       MSG_WriteByte (msg, svc_clientdata);
+       MSG_WriteShort (msg, bits);
+       if (bits & SU_EXTEND1)
+               MSG_WriteByte(msg, bits >> 16);
+       if (bits & SU_EXTEND2)
+               MSG_WriteByte(msg, bits >> 24);
+
+       if (bits & SU_VIEWHEIGHT)
+               MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
+
+       if (bits & SU_IDEALPITCH)
+               MSG_WriteChar (msg, (int)PRVM_serveredictfloat(ent, idealpitch));
+
+       for (i=0 ; i<3 ; i++)
+       {
+               if (bits & (SU_PUNCH1<<i))
+               {
+                       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)
+                               MSG_WriteChar(msg, (int)PRVM_serveredictvector(ent, punchangle)[i]);
+                       else
+                               MSG_WriteAngle16i(msg, PRVM_serveredictvector(ent, punchangle)[i]);
+               }
+               if (bits & (SU_PUNCHVEC1<<i))
+               {
+                       if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
+                               MSG_WriteCoord16i(msg, punchvector[i]);
+                       else
+                               MSG_WriteCoord32f(msg, punchvector[i]);
+               }
+               if (bits & (SU_VELOCITY1<<i))
+               {
+                       if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
+                               MSG_WriteChar(msg, (int)(PRVM_serveredictvector(ent, velocity)[i] * (1.0f / 16.0f)));
+                       else
+                               MSG_WriteCoord32f(msg, PRVM_serveredictvector(ent, velocity)[i]);
+               }
+       }
+
+       if (bits & SU_ITEMS)
+               MSG_WriteLong (msg, stats[STAT_ITEMS]);
+
+       if (sv.protocol == PROTOCOL_DARKPLACES5)
+       {
+               if (bits & SU_WEAPONFRAME)
+                       MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
+               if (bits & SU_ARMOR)
+                       MSG_WriteShort (msg, stats[STAT_ARMOR]);
+               if (bits & SU_WEAPON)
+                       MSG_WriteShort (msg, stats[STAT_WEAPON]);
+               MSG_WriteShort (msg, stats[STAT_HEALTH]);
+               MSG_WriteShort (msg, stats[STAT_AMMO]);
+               MSG_WriteShort (msg, stats[STAT_SHELLS]);
+               MSG_WriteShort (msg, stats[STAT_NAILS]);
+               MSG_WriteShort (msg, stats[STAT_ROCKETS]);
+               MSG_WriteShort (msg, stats[STAT_CELLS]);
+               MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
+               if (bits & SU_VIEWZOOM)
+                       MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
+       }
+       else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
+       {
+               if (bits & SU_WEAPONFRAME)
+                       MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
+               if (bits & SU_ARMOR)
+                       MSG_WriteByte (msg, stats[STAT_ARMOR]);
+               if (bits & SU_WEAPON)
+               {
+                       if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
+                               MSG_WriteShort (msg, stats[STAT_WEAPON]);
+                       else
+                               MSG_WriteByte (msg, stats[STAT_WEAPON]);
+               }
+               MSG_WriteShort (msg, stats[STAT_HEALTH]);
+               MSG_WriteByte (msg, stats[STAT_AMMO]);
+               MSG_WriteByte (msg, stats[STAT_SHELLS]);
+               MSG_WriteByte (msg, stats[STAT_NAILS]);
+               MSG_WriteByte (msg, stats[STAT_ROCKETS]);
+               MSG_WriteByte (msg, stats[STAT_CELLS]);
+               if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_QUOTH || IS_OLDNEXUIZ_DERIVED(gamemode))
+               {
+                       for (i = 0;i < 32;i++)
+                               if (stats[STAT_ACTIVEWEAPON] & (1<<i))
+                                       break;
+                       MSG_WriteByte (msg, i);
+               }
+               else
+                       MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
+               if (bits & SU_VIEWZOOM)
+               {
+                       if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
+                               MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
+                       else
+                               MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
+               }
+       }
+}
+
+void SV_FlushBroadcastMessages(void)
+{
+       int i;
+       client_t *client;
+       if (sv.datagram.cursize <= 0)
+               return;
+       for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
+       {
+               if (!client->begun || !client->netconnection || client->unreliablemsg.cursize + sv.datagram.cursize > client->unreliablemsg.maxsize || client->unreliablemsg_splitpoints >= (int)(sizeof(client->unreliablemsg_splitpoint)/sizeof(client->unreliablemsg_splitpoint[0])))
+                       continue;
+               SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
+               client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
+       }
+       SZ_Clear(&sv.datagram);
+}
+
+static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize, int maxsize2)
+{
+       // 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 1024 bytes, this ensures
+       // that very big datagrams which are over the rate limit still get
+       // through, just to keep it working
+       for (numsegments = 1;numsegments < client->unreliablemsg_splitpoints;numsegments++)
+               if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
+                       break;
+       // the first segment gets an exemption from the rate limiting, otherwise
+       // it could get dropped consistently due to a low rate limit
+       if (numsegments == 1)
+               maxsize = maxsize2;
+       // some will fit, so add the ones that will fit
+       split = client->unreliablemsg_splitpoint[numsegments-1];
+       // 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 <= maxsize)
+               SZ_Write(msg, client->unreliablemsg.data, split);
+       // remove the part we sent, keeping any remaining data
+       client->unreliablemsg.cursize -= split;
+       if (client->unreliablemsg.cursize > 0)
+               memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
+       // adjust remaining splitpoints
+       client->unreliablemsg_splitpoints -= numsegments;
+       for (j = 0;j < client->unreliablemsg_splitpoints;j++)
+               client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
+}
+
+/*
+=======================
+SV_SendClientDatagram
+=======================
+*/
+static void SV_SendClientDatagram (client_t *client)
+{
+       int clientrate, maxrate, maxsize, maxsize2, downloadsize;
+       sizebuf_t msg;
+       int stats[MAX_CL_STATS];
+       static unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
+       double timedelta;
+
+       // 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);
+
+       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;
+               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);
+               break;
+       default:
+               // DP5 and later protocols support packet size limiting which is a
+               // better method than limiting packet frequency as QW does
+               //
+               // at very low rates (or very small sys_ticrate) the packet size is
+               // not reduced below 128, but packets may be sent less often
+
+               // how long are bursts?
+               timedelta = host_client->rate_burstsize / (double)client->rate;
+
+               // how much of the burst do we keep reserved?
+               timedelta *= 1 - net_burstreserve.value;
+
+               // only try to use excess time
+               timedelta = bound(0, host.realtime - host_client->netconnection->cleartime, timedelta);
+
+               // but we know next packet will be in sys_ticrate, so we can use up THAT bandwidth
+               timedelta += sys_ticrate.value;
+
+               // note: packet overhead (not counted in maxsize) is 28 bytes
+               maxsize = (int)(clientrate * timedelta) - 28;
+
+               // put it in sound bounds
+               maxsize = bound(128, maxsize, 1400);
+               maxsize2 = 1400;
+
+               // csqc entities can easily exceed 128 bytes, so disable throttling in
+               // mods that use csqc (they are likely to use less bandwidth anyway)
+               if((net_usesizelimit.integer == 1) ? (sv.csqc_progsize > 0) : (net_usesizelimit.integer < 1))
+                       maxsize = maxsize2;
+
+               break;
+       }
+
+       if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !host_limitlocal.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)
+       if (host_client->download_file)
+               maxsize /= 2;
+
+       msg.data = sv_sendclientdatagram_buf;
+       msg.maxsize = sizeof(sv_sendclientdatagram_buf);
+       msg.cursize = 0;
+       msg.allowoverflow = false;
+
+       if (host_client->begun)
+       {
+               // the player is in the game
+               MSG_WriteByte (&msg, svc_time);
+               MSG_WriteFloat (&msg, sv.time);
+
+               // add the client specific data to the datagram
+               SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
+               // now update the stats[] array using any registered custom fields
+               VM_SV_UpdateCustomStats(client, client->edict, &msg, stats);
+               // set host_client->statsdeltabits
+               Protocol_UpdateClientStats (stats);
+
+               // add as many queued unreliable messages (effects) as we can fit
+               // limit effects to half of the remaining space
+               if (client->unreliablemsg.cursize)
+                       SV_WriteUnreliableMessages (client, &msg, maxsize/2, maxsize2);
+
+               // now write as many entities as we can fit, and also sends stats
+               SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
+       }
+       else if (host.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)
+               client->keepalivetime = host.realtime + 5;
+               MSG_WriteChar (&msg, svc_nop);
+       }
+
+       // if a download is active, see if there is room to fit some download data
+       // in this packet
+       downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
+       if (host_client->download_file && host_client->download_started && downloadsize > 0)
+       {
+               fs_offset_t downloadstart;
+               unsigned char data[1400];
+               downloadstart = FS_Tell(host_client->download_file);
+               downloadsize = min(downloadsize, (int)sizeof(data));
+               downloadsize = FS_Read(host_client->download_file, data, downloadsize);
+               // note this sends empty messages if at the end of the file, which is
+               // necessary to keep the packet loss logic working
+               // (the last blocks may be lost and need to be re-sent, and that will
+               //  only occur if the client acks the empty end messages, revealing
+               //  a gap in the download progress, causing the last blocks to be
+               //  sent again)
+               MSG_WriteChar (&msg, svc_downloaddata);
+               MSG_WriteLong (&msg, downloadstart);
+               MSG_WriteShort (&msg, downloadsize);
+               if (downloadsize > 0)
+                       SZ_Write (&msg, data, downloadsize);
+       }
+
+       // reliable only if none is in progress
+       if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
+               SV_WriteDemoMessage(client, &(client->netconnection->message), false);
+       // unreliable
+       SV_WriteDemoMessage(client, &msg, false);
+
+// send the datagram
+       NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->rate_burstsize, client->sendsignon == 2);
+       if (client->sendsignon == 1 && !client->netconnection->message.cursize)
+               client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
+}
+
+/*
+=======================
+SV_UpdateToReliableMessages
+=======================
+*/
+static void SV_UpdateToReliableMessages (void)
+{
+       prvm_prog_t *prog = SVVM_prog;
+       int i, j;
+       client_t *client;
+       const char *name;
+       const char *model;
+       const char *skin;
+       int clientcamera;
+
+// check for changes to be sent over the reliable streams
+       for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
+       {
+               // update the host_client fields we care about according to the entity fields
+               host_client->edict = PRVM_EDICT_NUM(i+1);
+
+               // DP_SV_CLIENTNAME
+               name = PRVM_GetString(prog, PRVM_serveredictstring(host_client->edict, netname));
+               if (name == NULL)
+                       name = "";
+               // always point the string back at host_client->name to keep it safe
+               //strlcpy (host_client->name, name, sizeof (host_client->name));
+               if (name != host_client->name) // prevent buffer overlap SIGABRT on Mac OSX
+                       strlcpy (host_client->name, name, sizeof (host_client->name));
+               SV_Name(i);
+
+               // DP_SV_CLIENTCOLORS
+               host_client->colors = (int)PRVM_serveredictfloat(host_client->edict, clientcolors);
+               if (host_client->old_colors != host_client->colors)
+               {
+                       host_client->old_colors = host_client->colors;
+                       // send notification to all clients
+                       MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
+                       MSG_WriteByte (&sv.reliable_datagram, i);
+                       MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
+               }
+
+               // NEXUIZ_PLAYERMODEL
+               model = PRVM_GetString(prog, PRVM_serveredictstring(host_client->edict, playermodel));
+               if (model == NULL)
+                       model = "";
+               // always point the string back at host_client->name to keep it safe
+               //strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
+               if (model != host_client->playermodel) // prevent buffer overlap SIGABRT on Mac OSX
+                       strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
+               PRVM_serveredictstring(host_client->edict, playermodel) = PRVM_SetEngineString(prog, host_client->playermodel);
+
+               // NEXUIZ_PLAYERSKIN
+               skin = PRVM_GetString(prog, PRVM_serveredictstring(host_client->edict, playerskin));
+               if (skin == NULL)
+                       skin = "";
+               // always point the string back at host_client->name to keep it safe
+               //strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
+               if (skin != host_client->playerskin) // prevent buffer overlap SIGABRT on Mac OSX
+                       strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
+               PRVM_serveredictstring(host_client->edict, playerskin) = PRVM_SetEngineString(prog, host_client->playerskin);
+
+               // TODO: add an extension name for this [1/17/2008 Black]
+               clientcamera = PRVM_serveredictedict(host_client->edict, clientcamera);
+               if (clientcamera > 0)
+               {
+                       int oldclientcamera = host_client->clientcamera;
+                       if (clientcamera >= prog->max_edicts || PRVM_EDICT_NUM(clientcamera)->free)
+                               clientcamera = PRVM_NUM_FOR_EDICT(host_client->edict);
+                       host_client->clientcamera = clientcamera;
+
+                       if (oldclientcamera != host_client->clientcamera && host_client->netconnection)
+                       {
+                               MSG_WriteByte(&host_client->netconnection->message, svc_setview);
+                               MSG_WriteShort(&host_client->netconnection->message, host_client->clientcamera);
+                       }
+               }
+
+               // frags
+               host_client->frags = (int)PRVM_serveredictfloat(host_client->edict, frags);
+               if(IS_OLDNEXUIZ_DERIVED(gamemode))
+                       if(!host_client->begun && host_client->netconnection)
+                               host_client->frags = -666;
+               if (host_client->old_frags != host_client->frags)
+               {
+                       host_client->old_frags = host_client->frags;
+                       // send notification to all clients
+                       MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
+                       MSG_WriteByte (&sv.reliable_datagram, i);
+                       MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
+               }
+       }
+
+       for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
+               if (client->netconnection && (client->begun || 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);
+}
+
+
+/*
+=======================
+SV_SendClientMessages
+=======================
+*/
+void SV_SendClientMessages(void)
+{
+       int i, prepared = false;
+
+       if (sv.protocol == PROTOCOL_QUAKEWORLD)
+               Sys_Error("SV_SendClientMessages: no quakeworld support\n");
+
+       SV_FlushBroadcastMessages();
+
+// update frags, names, etc
+       SV_UpdateToReliableMessages();
+
+// build individual updates
+       for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
+       {
+               if (!host_client->active)
+                       continue;
+               if (!host_client->netconnection)
+                       continue;
+
+               if (host_client->netconnection->message.overflowed)
+               {
+                       SV_DropClient (true, "Buffer overflow in net message"); // if the message couldn't send, kick off
+                       continue;
+               }
+
+               if (!prepared)
+               {
+                       prepared = true;
+                       // only prepare entities once per frame
+                       SV_PrepareEntitiesForSending();
+               }
+               SV_SendClientDatagram(host_client);
+       }
+
+// clear muzzle flashes
+       SV_CleanupEnts();
+}