+
+ // now try to emit the entity updates
+ // (FIXME: prioritize by distance?)
+ end = client->csqcnumedicts;
+ for (number = 1;number < end;number++)
+ {
+ if (!client->csqcentityscope[number])
+ continue;
+ sendflags = client->csqcentitysendflags[number];
+ if (!sendflags)
+ continue;
+ if(db->num >= NUM_CSQCENTITIES_PER_FRAME)
+ break;
+ ed = prog->edicts + number;
+ // entity scope is either update (2) or remove (1)
+ if (client->csqcentityscope[number] == 1)
+ {
+ // write a remove message
+ // first write the message identifier if needed
+ if(!sectionstarted)
+ {
+ sectionstarted = 1;
+ MSG_WriteByte(msg, svc_csqcentities);
+ }
+ // write the remove message
+ {
+ ENTITYSIZEPROFILING_START(msg, number);
+ MSG_WriteShort(msg, (unsigned short)number | 0x8000);
+ client->csqcentityscope[number] = 0;
+ client->csqcentitysendflags[number] = 0xFFFFFF; // resend completely if it becomes active again
+ db->entno[db->num] = number;
+ db->sendflags[db->num] = -1;
+ db->num += 1;
+ client->csqcentityglobalhistory[number] = 1;
+ ENTITYSIZEPROFILING_END(msg, number);
+ }
+ if (msg->cursize + 17 >= maxsize)
+ break;
+ }
+ else
+ {
+ // write an update
+ // save the cursize value in case we overflow and have to rollback
+ int oldcursize = msg->cursize;
+ client->csqcentityscope[number] = 1;
+ if (PRVM_serveredictfunction(ed, SendEntity))
+ {
+ if(!sectionstarted)
+ MSG_WriteByte(msg, svc_csqcentities);
+ {
+ ENTITYSIZEPROFILING_START(msg, number);
+ MSG_WriteShort(msg, number);
+ msg->allowoverflow = true;
+ PRVM_G_INT(OFS_PARM0) = sv.writeentitiestoclient_cliententitynumber;
+ PRVM_G_FLOAT(OFS_PARM1) = sendflags;
+ PRVM_serverglobaledict(self) = number;
+ PRVM_ExecuteProgram(PRVM_serveredictfunction(ed, SendEntity), "Null SendEntity\n");
+ msg->allowoverflow = false;
+ if(PRVM_G_FLOAT(OFS_RETURN) && msg->cursize + 2 <= maxsize)
+ {
+ // an update has been successfully written
+ client->csqcentitysendflags[number] = 0;
+ db->entno[db->num] = number;
+ db->sendflags[db->num] = sendflags;
+ db->num += 1;
+ client->csqcentityglobalhistory[number] = 1;
+ // and take note that we have begun the svc_csqcentities
+ // section of the packet
+ sectionstarted = 1;
+ ENTITYSIZEPROFILING_END(msg, number);
+ if (msg->cursize + 17 >= maxsize)
+ break;
+ continue;
+ }
+ }
+ }
+ // self.SendEntity returned false (or does not exist) or the
+ // update was too big for this packet - rollback the buffer to its
+ // state before the writes occurred, we'll try again next frame
+ msg->cursize = oldcursize;
+ msg->overflowed = false;
+ }
+ }
+ if (sectionstarted)
+ {
+ // write index 0 to end the update (0 is never used by real entities)
+ MSG_WriteShort(msg, 0);
+ }
+
+ if(db->num == 0)
+ // if no single ent got added, remove the frame from the DB again, to allow
+ // for a larger history
+ EntityFrameCSQC_DeallocFrame(client, framenum);
+
+ return sectionstarted;
+}
+
+void Protocol_UpdateClientStats(const int *stats)
+{
+ int i;
+ // update the stats array and set deltabits for any changed stats
+ for (i = 0;i < MAX_CL_STATS;i++)
+ {
+ if (host_client->stats[i] != stats[i])
+ {
+ host_client->statsdeltabits[i >> 3] |= 1 << (i & 7);
+ host_client->stats[i] = stats[i];
+ }
+ }
+}
+
+// only a few stats are within the 32 stat limit of Quake, and most of them
+// are sent every frame in svc_clientdata messages, so we only send the
+// remaining ones here
+static const int sendquakestats[] =
+{
+// quake did not send these secrets/monsters stats in this way, but doing so
+// allows a mod to increase STAT_TOTALMONSTERS during the game, and ensures
+// that STAT_SECRETS and STAT_MONSTERS are always correct (even if a client
+// didn't receive an svc_foundsecret or svc_killedmonster), which may be most
+// valuable if randomly seeking around in a demo
+STAT_TOTALSECRETS, // never changes during game
+STAT_TOTALMONSTERS, // changes in some mods
+STAT_SECRETS, // this makes svc_foundsecret unnecessary
+STAT_MONSTERS, // this makes svc_killedmonster unnecessary
+STAT_VIEWHEIGHT, // sent just for FTEQW clients
+STAT_VIEWZOOM, // this rarely changes
+-1,
+};
+
+void Protocol_WriteStatsReliable(void)
+{
+ int i, j;
+ if (!host_client->netconnection)
+ return;
+ // detect changes in stats and write reliable messages
+ // this only deals with 32 stats because the older protocols which use
+ // this function can only cope with 32 stats,
+ // they also do not support svc_updatestatubyte which was introduced in
+ // DP6 protocol (except for QW)
+ for (j = 0;sendquakestats[j] >= 0;j++)
+ {
+ i = sendquakestats[j];
+ // check if this bit is set
+ if (host_client->statsdeltabits[i >> 3] & (1 << (i & 7)))
+ {
+ host_client->statsdeltabits[i >> 3] -= (1 << (i & 7));
+ // send the stat as a byte if possible
+ if (sv.protocol == PROTOCOL_QUAKEWORLD)
+ {
+ if (host_client->stats[i] >= 0 && host_client->stats[i] < 256)
+ {
+ MSG_WriteByte(&host_client->netconnection->message, qw_svc_updatestat);
+ MSG_WriteByte(&host_client->netconnection->message, i);
+ MSG_WriteByte(&host_client->netconnection->message, host_client->stats[i]);
+ }
+ else
+ {
+ MSG_WriteByte(&host_client->netconnection->message, qw_svc_updatestatlong);
+ MSG_WriteByte(&host_client->netconnection->message, i);
+ MSG_WriteLong(&host_client->netconnection->message, host_client->stats[i]);
+ }
+ }
+ else
+ {
+ // this could make use of svc_updatestatubyte in DP6 and later
+ // protocols but those protocols do not use this function
+ MSG_WriteByte(&host_client->netconnection->message, svc_updatestat);
+ MSG_WriteByte(&host_client->netconnection->message, i);
+ MSG_WriteLong(&host_client->netconnection->message, host_client->stats[i]);
+ }
+ }
+ }
+}
+
+
+qboolean EntityFrameQuake_WriteFrame(sizebuf_t *msg, int maxsize, int numstates, const entity_state_t **states)
+{
+ const entity_state_t *s;
+ entity_state_t baseline;
+ int i, bits;
+ sizebuf_t buf;
+ unsigned char data[128];
+ qboolean success = false;
+
+ // prepare the buffer
+ memset(&buf, 0, sizeof(buf));
+ buf.data = data;
+ buf.maxsize = sizeof(data);
+
+ for (i = 0;i < numstates;i++)
+ {
+ ENTITYSIZEPROFILING_START(msg, states[i]->number);
+ s = states[i];
+ if(PRVM_serveredictfunction((&prog->edicts[s->number]), SendEntity))
+ continue;
+
+ // prepare the buffer
+ SZ_Clear(&buf);
+
+// send an update
+ bits = 0;
+ if (s->number >= 256)
+ bits |= U_LONGENTITY;
+ if (s->flags & RENDER_STEP)
+ bits |= U_STEP;
+ if (s->flags & RENDER_VIEWMODEL)
+ bits |= U_VIEWMODEL;
+ if (s->flags & RENDER_GLOWTRAIL)
+ bits |= U_GLOWTRAIL;
+ if (s->flags & RENDER_EXTERIORMODEL)
+ bits |= U_EXTERIORMODEL;
+
+ // LordHavoc: old stuff, but rewritten to have more exact tolerances
+ baseline = prog->edicts[s->number].priv.server->baseline;
+ if (baseline.origin[0] != s->origin[0])
+ bits |= U_ORIGIN1;
+ if (baseline.origin[1] != s->origin[1])
+ bits |= U_ORIGIN2;
+ if (baseline.origin[2] != s->origin[2])
+ bits |= U_ORIGIN3;
+ if (baseline.angles[0] != s->angles[0])
+ bits |= U_ANGLE1;
+ if (baseline.angles[1] != s->angles[1])
+ bits |= U_ANGLE2;
+ if (baseline.angles[2] != s->angles[2])
+ bits |= U_ANGLE3;
+ if (baseline.colormap != s->colormap)
+ bits |= U_COLORMAP;
+ if (baseline.skin != s->skin)
+ bits |= U_SKIN;
+ if (baseline.frame != s->frame)
+ {
+ bits |= U_FRAME;
+ if (s->frame & 0xFF00)
+ bits |= U_FRAME2;
+ }
+ if (baseline.effects != s->effects)
+ {
+ bits |= U_EFFECTS;
+ if (s->effects & 0xFF00)
+ bits |= U_EFFECTS2;
+ }
+ if (baseline.modelindex != s->modelindex)
+ {
+ bits |= U_MODEL;
+ if ((s->modelindex & 0xFF00) && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
+ bits |= U_MODEL2;
+ }
+ if (baseline.alpha != s->alpha)
+ bits |= U_ALPHA;
+ if (baseline.scale != s->scale)
+ bits |= U_SCALE;
+ if (baseline.glowsize != s->glowsize)
+ bits |= U_GLOWSIZE;
+ if (baseline.glowcolor != s->glowcolor)
+ bits |= U_GLOWCOLOR;
+ if (!VectorCompare(baseline.colormod, s->colormod))
+ bits |= U_COLORMOD;
+
+ // if extensions are disabled, clear the relevant update flags
+ if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
+ bits &= 0x7FFF;
+ if (sv.protocol == PROTOCOL_NEHAHRAMOVIE)
+ if (s->alpha != 255 || s->effects & EF_FULLBRIGHT)
+ bits |= U_EXTEND1;
+
+ // write the message
+ if (bits >= 16777216)
+ bits |= U_EXTEND2;
+ if (bits >= 65536)
+ bits |= U_EXTEND1;
+ if (bits >= 256)
+ bits |= U_MOREBITS;
+ bits |= U_SIGNAL;
+
+ MSG_WriteByte (&buf, bits);
+ if (bits & U_MOREBITS) MSG_WriteByte(&buf, bits>>8);
+ if (sv.protocol != PROTOCOL_NEHAHRAMOVIE)
+ {
+ if (bits & U_EXTEND1) MSG_WriteByte(&buf, bits>>16);
+ if (bits & U_EXTEND2) MSG_WriteByte(&buf, bits>>24);
+ }
+ if (bits & U_LONGENTITY) MSG_WriteShort(&buf, s->number);
+ else MSG_WriteByte(&buf, s->number);
+
+ if (bits & U_MODEL)
+ {
+ if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
+ MSG_WriteShort(&buf, s->modelindex);
+ else
+ MSG_WriteByte(&buf, s->modelindex);
+ }
+ if (bits & U_FRAME) MSG_WriteByte(&buf, s->frame);
+ if (bits & U_COLORMAP) MSG_WriteByte(&buf, s->colormap);
+ if (bits & U_SKIN) MSG_WriteByte(&buf, s->skin);
+ if (bits & U_EFFECTS) MSG_WriteByte(&buf, s->effects);
+ if (bits & U_ORIGIN1) MSG_WriteCoord(&buf, s->origin[0], sv.protocol);
+ if (bits & U_ANGLE1) MSG_WriteAngle(&buf, s->angles[0], sv.protocol);
+ if (bits & U_ORIGIN2) MSG_WriteCoord(&buf, s->origin[1], sv.protocol);
+ if (bits & U_ANGLE2) MSG_WriteAngle(&buf, s->angles[1], sv.protocol);
+ if (bits & U_ORIGIN3) MSG_WriteCoord(&buf, s->origin[2], sv.protocol);
+ if (bits & U_ANGLE3) MSG_WriteAngle(&buf, s->angles[2], sv.protocol);
+ if (bits & U_ALPHA) MSG_WriteByte(&buf, s->alpha);
+ if (bits & U_SCALE) MSG_WriteByte(&buf, s->scale);
+ if (bits & U_EFFECTS2) MSG_WriteByte(&buf, s->effects >> 8);
+ if (bits & U_GLOWSIZE) MSG_WriteByte(&buf, s->glowsize);
+ if (bits & U_GLOWCOLOR) MSG_WriteByte(&buf, s->glowcolor);
+ if (bits & U_COLORMOD) {int c = ((int)bound(0, s->colormod[0] * (7.0f / 32.0f), 7) << 5) | ((int)bound(0, s->colormod[1] * (7.0f / 32.0f), 7) << 2) | ((int)bound(0, s->colormod[2] * (3.0f / 32.0f), 3) << 0);MSG_WriteByte(&buf, c);}
+ if (bits & U_FRAME2) MSG_WriteByte(&buf, s->frame >> 8);
+ if (bits & U_MODEL2) MSG_WriteByte(&buf, s->modelindex >> 8);
+
+ // the nasty protocol
+ if ((bits & U_EXTEND1) && sv.protocol == PROTOCOL_NEHAHRAMOVIE)
+ {
+ if (s->effects & EF_FULLBRIGHT)
+ {
+ MSG_WriteFloat(&buf, 2); // QSG protocol version
+ MSG_WriteFloat(&buf, s->alpha <= 0 ? 0 : (s->alpha >= 255 ? 1 : s->alpha * (1.0f / 255.0f))); // alpha
+ MSG_WriteFloat(&buf, 1); // fullbright
+ }
+ else
+ {
+ MSG_WriteFloat(&buf, 1); // QSG protocol version
+ MSG_WriteFloat(&buf, s->alpha <= 0 ? 0 : (s->alpha >= 255 ? 1 : s->alpha * (1.0f / 255.0f))); // alpha
+ }
+ }
+
+ // if the commit is full, we're done this frame
+ if (msg->cursize + buf.cursize > maxsize)
+ {
+ // next frame we will continue where we left off
+ break;
+ }
+ // write the message to the packet
+ SZ_Write(msg, buf.data, buf.cursize);
+ success = true;
+ ENTITYSIZEPROFILING_END(msg, s->number);
+ }
+ return success;
+}
+
+int EntityState_DeltaBits(const entity_state_t *o, const entity_state_t *n)
+{
+ unsigned int bits;
+ // if o is not active, delta from default
+ if (o->active != ACTIVE_NETWORK)
+ o = &defaultstate;
+ bits = 0;
+ if (fabs(n->origin[0] - o->origin[0]) > (1.0f / 256.0f))
+ bits |= E_ORIGIN1;
+ if (fabs(n->origin[1] - o->origin[1]) > (1.0f / 256.0f))
+ bits |= E_ORIGIN2;
+ if (fabs(n->origin[2] - o->origin[2]) > (1.0f / 256.0f))
+ bits |= E_ORIGIN3;
+ if ((unsigned char) (n->angles[0] * (256.0f / 360.0f)) != (unsigned char) (o->angles[0] * (256.0f / 360.0f)))
+ bits |= E_ANGLE1;
+ if ((unsigned char) (n->angles[1] * (256.0f / 360.0f)) != (unsigned char) (o->angles[1] * (256.0f / 360.0f)))
+ bits |= E_ANGLE2;
+ if ((unsigned char) (n->angles[2] * (256.0f / 360.0f)) != (unsigned char) (o->angles[2] * (256.0f / 360.0f)))
+ bits |= E_ANGLE3;
+ if ((n->modelindex ^ o->modelindex) & 0x00FF)
+ bits |= E_MODEL1;
+ if ((n->modelindex ^ o->modelindex) & 0xFF00)
+ bits |= E_MODEL2;
+ if ((n->frame ^ o->frame) & 0x00FF)
+ bits |= E_FRAME1;
+ if ((n->frame ^ o->frame) & 0xFF00)
+ bits |= E_FRAME2;
+ if ((n->effects ^ o->effects) & 0x00FF)
+ bits |= E_EFFECTS1;
+ if ((n->effects ^ o->effects) & 0xFF00)
+ bits |= E_EFFECTS2;
+ if (n->colormap != o->colormap)
+ bits |= E_COLORMAP;
+ if (n->skin != o->skin)
+ bits |= E_SKIN;
+ if (n->alpha != o->alpha)
+ bits |= E_ALPHA;
+ if (n->scale != o->scale)
+ bits |= E_SCALE;
+ if (n->glowsize != o->glowsize)
+ bits |= E_GLOWSIZE;
+ if (n->glowcolor != o->glowcolor)
+ bits |= E_GLOWCOLOR;
+ if (n->flags != o->flags)
+ bits |= E_FLAGS;
+ if (n->tagindex != o->tagindex || n->tagentity != o->tagentity)
+ bits |= E_TAGATTACHMENT;
+ if (n->light[0] != o->light[0] || n->light[1] != o->light[1] || n->light[2] != o->light[2] || n->light[3] != o->light[3])
+ bits |= E_LIGHT;
+ if (n->lightstyle != o->lightstyle)
+ bits |= E_LIGHTSTYLE;
+ if (n->lightpflags != o->lightpflags)
+ bits |= E_LIGHTPFLAGS;
+
+ if (bits)
+ {
+ if (bits & 0xFF000000)
+ bits |= 0x00800000;
+ if (bits & 0x00FF0000)
+ bits |= 0x00008000;
+ if (bits & 0x0000FF00)
+ bits |= 0x00000080;
+ }
+ return bits;
+}
+
+void EntityState_WriteExtendBits(sizebuf_t *msg, unsigned int bits)
+{
+ MSG_WriteByte(msg, bits & 0xFF);
+ if (bits & 0x00000080)
+ {
+ MSG_WriteByte(msg, (bits >> 8) & 0xFF);
+ if (bits & 0x00008000)
+ {
+ MSG_WriteByte(msg, (bits >> 16) & 0xFF);
+ if (bits & 0x00800000)
+ MSG_WriteByte(msg, (bits >> 24) & 0xFF);
+ }
+ }
+}
+
+void EntityState_WriteFields(const entity_state_t *ent, sizebuf_t *msg, unsigned int bits)
+{
+ if (sv.protocol == PROTOCOL_DARKPLACES2)
+ {
+ if (bits & E_ORIGIN1)
+ MSG_WriteCoord16i(msg, ent->origin[0]);
+ if (bits & E_ORIGIN2)
+ MSG_WriteCoord16i(msg, ent->origin[1]);
+ if (bits & E_ORIGIN3)
+ MSG_WriteCoord16i(msg, ent->origin[2]);
+ }
+ else
+ {
+ // LordHavoc: have to write flags first, as they can modify protocol
+ if (bits & E_FLAGS)
+ MSG_WriteByte(msg, ent->flags);
+ if (ent->flags & RENDER_LOWPRECISION)
+ {
+ if (bits & E_ORIGIN1)
+ MSG_WriteCoord16i(msg, ent->origin[0]);
+ if (bits & E_ORIGIN2)
+ MSG_WriteCoord16i(msg, ent->origin[1]);
+ if (bits & E_ORIGIN3)
+ MSG_WriteCoord16i(msg, ent->origin[2]);
+ }
+ else
+ {
+ if (bits & E_ORIGIN1)
+ MSG_WriteCoord32f(msg, ent->origin[0]);
+ if (bits & E_ORIGIN2)
+ MSG_WriteCoord32f(msg, ent->origin[1]);
+ if (bits & E_ORIGIN3)
+ MSG_WriteCoord32f(msg, ent->origin[2]);
+ }
+ }
+ if ((sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4) && (ent->flags & RENDER_LOWPRECISION))
+ {
+ if (bits & E_ANGLE1)
+ MSG_WriteAngle8i(msg, ent->angles[0]);
+ if (bits & E_ANGLE2)
+ MSG_WriteAngle8i(msg, ent->angles[1]);
+ if (bits & E_ANGLE3)
+ MSG_WriteAngle8i(msg, ent->angles[2]);
+ }
+ else
+ {
+ if (bits & E_ANGLE1)
+ MSG_WriteAngle16i(msg, ent->angles[0]);
+ if (bits & E_ANGLE2)
+ MSG_WriteAngle16i(msg, ent->angles[1]);
+ if (bits & E_ANGLE3)
+ MSG_WriteAngle16i(msg, ent->angles[2]);
+ }
+ if (bits & E_MODEL1)
+ MSG_WriteByte(msg, ent->modelindex & 0xFF);
+ if (bits & E_MODEL2)
+ MSG_WriteByte(msg, (ent->modelindex >> 8) & 0xFF);
+ if (bits & E_FRAME1)
+ MSG_WriteByte(msg, ent->frame & 0xFF);
+ if (bits & E_FRAME2)
+ MSG_WriteByte(msg, (ent->frame >> 8) & 0xFF);
+ if (bits & E_EFFECTS1)
+ MSG_WriteByte(msg, ent->effects & 0xFF);
+ if (bits & E_EFFECTS2)
+ MSG_WriteByte(msg, (ent->effects >> 8) & 0xFF);
+ if (bits & E_COLORMAP)
+ MSG_WriteByte(msg, ent->colormap);
+ if (bits & E_SKIN)
+ MSG_WriteByte(msg, ent->skin);
+ if (bits & E_ALPHA)
+ MSG_WriteByte(msg, ent->alpha);
+ if (bits & E_SCALE)
+ MSG_WriteByte(msg, ent->scale);
+ if (bits & E_GLOWSIZE)
+ MSG_WriteByte(msg, ent->glowsize);
+ if (bits & E_GLOWCOLOR)
+ MSG_WriteByte(msg, ent->glowcolor);
+ if (sv.protocol == PROTOCOL_DARKPLACES2)
+ if (bits & E_FLAGS)
+ MSG_WriteByte(msg, ent->flags);
+ if (bits & E_TAGATTACHMENT)
+ {
+ MSG_WriteShort(msg, ent->tagentity);
+ MSG_WriteByte(msg, ent->tagindex);
+ }
+ if (bits & E_LIGHT)
+ {
+ MSG_WriteShort(msg, ent->light[0]);
+ MSG_WriteShort(msg, ent->light[1]);
+ MSG_WriteShort(msg, ent->light[2]);
+ MSG_WriteShort(msg, ent->light[3]);
+ }
+ if (bits & E_LIGHTSTYLE)
+ MSG_WriteByte(msg, ent->lightstyle);
+ if (bits & E_LIGHTPFLAGS)
+ MSG_WriteByte(msg, ent->lightpflags);
+}
+
+void EntityState_WriteUpdate(const entity_state_t *ent, sizebuf_t *msg, const entity_state_t *delta)
+{
+ unsigned int bits;
+ ENTITYSIZEPROFILING_START(msg, ent->number);
+ if (ent->active == ACTIVE_NETWORK)
+ {
+ // entity is active, check for changes from the delta
+ if ((bits = EntityState_DeltaBits(delta, ent)))
+ {
+ // write the update number, bits, and fields
+ MSG_WriteShort(msg, ent->number);
+ EntityState_WriteExtendBits(msg, bits);
+ EntityState_WriteFields(ent, msg, bits);
+ }
+ }
+ else
+ {
+ // entity is inactive, check if the delta was active
+ if (delta->active == ACTIVE_NETWORK)
+ {
+ // write the remove number
+ MSG_WriteShort(msg, ent->number | 0x8000);
+ }
+ }
+ ENTITYSIZEPROFILING_END(msg, ent->number);
+}
+
+int EntityState_ReadExtendBits(void)
+{
+ unsigned int bits;
+ bits = MSG_ReadByte();
+ if (bits & 0x00000080)
+ {
+ bits |= MSG_ReadByte() << 8;
+ if (bits & 0x00008000)
+ {
+ bits |= MSG_ReadByte() << 16;
+ if (bits & 0x00800000)
+ bits |= MSG_ReadByte() << 24;
+ }
+ }
+ return bits;
+}
+
+void EntityState_ReadFields(entity_state_t *e, unsigned int bits)
+{
+ if (cls.protocol == PROTOCOL_DARKPLACES2)
+ {
+ if (bits & E_ORIGIN1)
+ e->origin[0] = MSG_ReadCoord16i();
+ if (bits & E_ORIGIN2)
+ e->origin[1] = MSG_ReadCoord16i();
+ if (bits & E_ORIGIN3)
+ e->origin[2] = MSG_ReadCoord16i();
+ }
+ else
+ {
+ if (bits & E_FLAGS)
+ e->flags = MSG_ReadByte();
+ if (e->flags & RENDER_LOWPRECISION)
+ {
+ if (bits & E_ORIGIN1)
+ e->origin[0] = MSG_ReadCoord16i();
+ if (bits & E_ORIGIN2)
+ e->origin[1] = MSG_ReadCoord16i();
+ if (bits & E_ORIGIN3)
+ e->origin[2] = MSG_ReadCoord16i();
+ }
+ else
+ {
+ if (bits & E_ORIGIN1)
+ e->origin[0] = MSG_ReadCoord32f();
+ if (bits & E_ORIGIN2)
+ e->origin[1] = MSG_ReadCoord32f();
+ if (bits & E_ORIGIN3)
+ e->origin[2] = MSG_ReadCoord32f();
+ }
+ }
+ if ((cls.protocol == PROTOCOL_DARKPLACES5 || cls.protocol == PROTOCOL_DARKPLACES6) && !(e->flags & RENDER_LOWPRECISION))
+ {
+ if (bits & E_ANGLE1)
+ e->angles[0] = MSG_ReadAngle16i();
+ if (bits & E_ANGLE2)
+ e->angles[1] = MSG_ReadAngle16i();
+ if (bits & E_ANGLE3)
+ e->angles[2] = MSG_ReadAngle16i();
+ }
+ else
+ {
+ if (bits & E_ANGLE1)
+ e->angles[0] = MSG_ReadAngle8i();
+ if (bits & E_ANGLE2)
+ e->angles[1] = MSG_ReadAngle8i();
+ if (bits & E_ANGLE3)
+ e->angles[2] = MSG_ReadAngle8i();
+ }
+ if (bits & E_MODEL1)
+ e->modelindex = (e->modelindex & 0xFF00) | (unsigned int) MSG_ReadByte();
+ if (bits & E_MODEL2)
+ e->modelindex = (e->modelindex & 0x00FF) | ((unsigned int) MSG_ReadByte() << 8);
+ if (bits & E_FRAME1)
+ e->frame = (e->frame & 0xFF00) | (unsigned int) MSG_ReadByte();
+ if (bits & E_FRAME2)
+ e->frame = (e->frame & 0x00FF) | ((unsigned int) MSG_ReadByte() << 8);
+ if (bits & E_EFFECTS1)
+ e->effects = (e->effects & 0xFF00) | (unsigned int) MSG_ReadByte();
+ if (bits & E_EFFECTS2)
+ e->effects = (e->effects & 0x00FF) | ((unsigned int) MSG_ReadByte() << 8);
+ if (bits & E_COLORMAP)
+ e->colormap = MSG_ReadByte();
+ if (bits & E_SKIN)
+ e->skin = MSG_ReadByte();
+ if (bits & E_ALPHA)
+ e->alpha = MSG_ReadByte();
+ if (bits & E_SCALE)
+ e->scale = MSG_ReadByte();
+ if (bits & E_GLOWSIZE)
+ e->glowsize = MSG_ReadByte();
+ if (bits & E_GLOWCOLOR)
+ e->glowcolor = MSG_ReadByte();
+ if (cls.protocol == PROTOCOL_DARKPLACES2)
+ if (bits & E_FLAGS)
+ e->flags = MSG_ReadByte();
+ if (bits & E_TAGATTACHMENT)
+ {
+ e->tagentity = (unsigned short) MSG_ReadShort();
+ e->tagindex = MSG_ReadByte();
+ }
+ if (bits & E_LIGHT)
+ {
+ e->light[0] = (unsigned short) MSG_ReadShort();
+ e->light[1] = (unsigned short) MSG_ReadShort();
+ e->light[2] = (unsigned short) MSG_ReadShort();
+ e->light[3] = (unsigned short) MSG_ReadShort();
+ }
+ if (bits & E_LIGHTSTYLE)
+ e->lightstyle = MSG_ReadByte();
+ if (bits & E_LIGHTPFLAGS)
+ e->lightpflags = MSG_ReadByte();
+
+ if (developer_networkentities.integer >= 2)
+ {
+ Con_Printf("ReadFields e%i", e->number);
+
+ if (bits & E_ORIGIN1)
+ Con_Printf(" E_ORIGIN1 %f", e->origin[0]);
+ if (bits & E_ORIGIN2)
+ Con_Printf(" E_ORIGIN2 %f", e->origin[1]);
+ if (bits & E_ORIGIN3)
+ Con_Printf(" E_ORIGIN3 %f", e->origin[2]);
+ if (bits & E_ANGLE1)
+ Con_Printf(" E_ANGLE1 %f", e->angles[0]);
+ if (bits & E_ANGLE2)
+ Con_Printf(" E_ANGLE2 %f", e->angles[1]);
+ if (bits & E_ANGLE3)
+ Con_Printf(" E_ANGLE3 %f", e->angles[2]);
+ if (bits & (E_MODEL1 | E_MODEL2))
+ Con_Printf(" E_MODEL %i", e->modelindex);
+
+ if (bits & (E_FRAME1 | E_FRAME2))
+ Con_Printf(" E_FRAME %i", e->frame);
+ if (bits & (E_EFFECTS1 | E_EFFECTS2))
+ Con_Printf(" E_EFFECTS %i", e->effects);
+ if (bits & E_ALPHA)
+ Con_Printf(" E_ALPHA %f", e->alpha / 255.0f);
+ if (bits & E_SCALE)
+ Con_Printf(" E_SCALE %f", e->scale / 16.0f);
+ if (bits & E_COLORMAP)
+ Con_Printf(" E_COLORMAP %i", e->colormap);
+ if (bits & E_SKIN)
+ Con_Printf(" E_SKIN %i", e->skin);
+
+ if (bits & E_GLOWSIZE)
+ Con_Printf(" E_GLOWSIZE %i", e->glowsize * 4);
+ if (bits & E_GLOWCOLOR)
+ Con_Printf(" E_GLOWCOLOR %i", e->glowcolor);
+
+ if (bits & E_LIGHT)
+ Con_Printf(" E_LIGHT %i:%i:%i:%i", e->light[0], e->light[1], e->light[2], e->light[3]);
+ if (bits & E_LIGHTPFLAGS)
+ Con_Printf(" E_LIGHTPFLAGS %i", e->lightpflags);
+
+ if (bits & E_TAGATTACHMENT)
+ Con_Printf(" E_TAGATTACHMENT e%i:%i", e->tagentity, e->tagindex);
+ if (bits & E_LIGHTSTYLE)
+ Con_Printf(" E_LIGHTSTYLE %i", e->lightstyle);
+ Con_Print("\n");
+ }
+}
+
+extern void CL_NewFrameReceived(int num);
+
+// (client and server) allocates a new empty database
+entityframe_database_t *EntityFrame_AllocDatabase(mempool_t *mempool)
+{
+ return (entityframe_database_t *)Mem_Alloc(mempool, sizeof(entityframe_database_t));
+}
+
+// (client and server) frees the database
+void EntityFrame_FreeDatabase(entityframe_database_t *d)
+{
+ Mem_Free(d);
+}
+
+// (server) clears the database to contain no frames (thus delta compression compresses against nothing)
+void EntityFrame_ClearDatabase(entityframe_database_t *d)
+{
+ memset(d, 0, sizeof(*d));
+}
+
+// (server and client) removes frames older than 'frame' from database
+void EntityFrame_AckFrame(entityframe_database_t *d, int frame)
+{
+ int i;
+ d->ackframenum = frame;
+ for (i = 0;i < d->numframes && d->frames[i].framenum < frame;i++);
+ // ignore outdated frame acks (out of order packets)
+ if (i == 0)
+ return;
+ d->numframes -= i;
+ // if some queue is left, slide it down to beginning of array
+ if (d->numframes)
+ memmove(&d->frames[0], &d->frames[i], sizeof(d->frames[0]) * d->numframes);
+}
+
+// (server) clears frame, to prepare for adding entities
+void EntityFrame_Clear(entity_frame_t *f, vec3_t eye, int framenum)
+{
+ f->time = 0;
+ f->framenum = framenum;
+ f->numentities = 0;
+ if (eye == NULL)
+ VectorClear(f->eye);
+ else
+ VectorCopy(eye, f->eye);
+}
+
+// (server and client) reads a frame from the database
+void EntityFrame_FetchFrame(entityframe_database_t *d, int framenum, entity_frame_t *f)
+{
+ int i, n;
+ EntityFrame_Clear(f, NULL, -1);
+ for (i = 0;i < d->numframes && d->frames[i].framenum < framenum;i++);
+ if (i < d->numframes && framenum == d->frames[i].framenum)
+ {
+ f->framenum = framenum;
+ f->numentities = d->frames[i].endentity - d->frames[i].firstentity;
+ n = MAX_ENTITY_DATABASE - (d->frames[i].firstentity % MAX_ENTITY_DATABASE);
+ if (n > f->numentities)
+ n = f->numentities;
+ memcpy(f->entitydata, d->entitydata + d->frames[i].firstentity % MAX_ENTITY_DATABASE, sizeof(*f->entitydata) * n);
+ if (f->numentities > n)
+ memcpy(f->entitydata + n, d->entitydata, sizeof(*f->entitydata) * (f->numentities - n));
+ VectorCopy(d->eye, f->eye);
+ }
+}
+
+// (client) adds a entity_frame to the database, for future reference
+void EntityFrame_AddFrame_Client(entityframe_database_t *d, vec3_t eye, int framenum, int numentities, const entity_state_t *entitydata)
+{
+ int n, e;
+ entity_frameinfo_t *info;
+
+ VectorCopy(eye, d->eye);
+
+ // figure out how many entity slots are used already
+ if (d->numframes)
+ {
+ n = d->frames[d->numframes - 1].endentity - d->frames[0].firstentity;
+ if (n + numentities > MAX_ENTITY_DATABASE || d->numframes >= MAX_ENTITY_HISTORY)
+ {
+ // ran out of room, dump database
+ EntityFrame_ClearDatabase(d);
+ }
+ }
+
+ info = &d->frames[d->numframes];
+ info->framenum = framenum;
+ e = -1000;
+ // make sure we check the newly added frame as well, but we haven't incremented numframes yet
+ for (n = 0;n <= d->numframes;n++)
+ {
+ if (e >= d->frames[n].framenum)
+ {
+ if (e == framenum)
+ Con_Print("EntityFrame_AddFrame: tried to add out of sequence frame to database\n");
+ else
+ Con_Print("EntityFrame_AddFrame: out of sequence frames in database\n");
+ return;
+ }
+ e = d->frames[n].framenum;
+ }
+ // if database still has frames after that...
+ if (d->numframes)
+ info->firstentity = d->frames[d->numframes - 1].endentity;
+ else
+ info->firstentity = 0;
+ info->endentity = info->firstentity + numentities;
+ d->numframes++;
+
+ n = info->firstentity % MAX_ENTITY_DATABASE;
+ e = MAX_ENTITY_DATABASE - n;
+ if (e > numentities)
+ e = numentities;
+ memcpy(d->entitydata + n, entitydata, sizeof(entity_state_t) * e);
+ if (numentities > e)
+ memcpy(d->entitydata, entitydata + e, sizeof(entity_state_t) * (numentities - e));
+}
+
+// (server) adds a entity_frame to the database, for future reference
+void EntityFrame_AddFrame_Server(entityframe_database_t *d, vec3_t eye, int framenum, int numentities, const entity_state_t **entitydata)
+{
+ int n, e;
+ entity_frameinfo_t *info;
+
+ VectorCopy(eye, d->eye);
+
+ // figure out how many entity slots are used already
+ if (d->numframes)
+ {
+ n = d->frames[d->numframes - 1].endentity - d->frames[0].firstentity;
+ if (n + numentities > MAX_ENTITY_DATABASE || d->numframes >= MAX_ENTITY_HISTORY)
+ {
+ // ran out of room, dump database
+ EntityFrame_ClearDatabase(d);
+ }
+ }
+
+ info = &d->frames[d->numframes];
+ info->framenum = framenum;
+ e = -1000;
+ // make sure we check the newly added frame as well, but we haven't incremented numframes yet
+ for (n = 0;n <= d->numframes;n++)
+ {
+ if (e >= d->frames[n].framenum)
+ {
+ if (e == framenum)
+ Con_Print("EntityFrame_AddFrame: tried to add out of sequence frame to database\n");
+ else
+ Con_Print("EntityFrame_AddFrame: out of sequence frames in database\n");
+ return;
+ }
+ e = d->frames[n].framenum;
+ }
+ // if database still has frames after that...
+ if (d->numframes)
+ info->firstentity = d->frames[d->numframes - 1].endentity;
+ else
+ info->firstentity = 0;
+ info->endentity = info->firstentity + numentities;
+ d->numframes++;
+
+ n = info->firstentity % MAX_ENTITY_DATABASE;
+ e = MAX_ENTITY_DATABASE - n;
+ if (e > numentities)
+ e = numentities;
+ memcpy(d->entitydata + n, entitydata, sizeof(entity_state_t) * e);
+ if (numentities > e)
+ memcpy(d->entitydata, entitydata + e, sizeof(entity_state_t) * (numentities - e));
+}
+
+// (server) writes a frame to network stream
+qboolean EntityFrame_WriteFrame(sizebuf_t *msg, int maxsize, entityframe_database_t *d, int numstates, const entity_state_t **states, int viewentnum)
+{
+ int i, onum, number;
+ entity_frame_t *o = &d->deltaframe;
+ const entity_state_t *ent, *delta;
+ vec3_t eye;
+
+ d->latestframenum++;
+
+ VectorClear(eye);
+ for (i = 0;i < numstates;i++)
+ {
+ ent = states[i];
+ if (ent->number == viewentnum)
+ {
+ VectorSet(eye, ent->origin[0], ent->origin[1], ent->origin[2] + 22);
+ break;
+ }
+ }
+
+ EntityFrame_AddFrame_Server(d, eye, d->latestframenum, numstates, states);
+
+ EntityFrame_FetchFrame(d, d->ackframenum, o);
+
+ MSG_WriteByte (msg, svc_entities);
+ MSG_WriteLong (msg, o->framenum);
+ MSG_WriteLong (msg, d->latestframenum);
+ MSG_WriteFloat (msg, eye[0]);
+ MSG_WriteFloat (msg, eye[1]);
+ MSG_WriteFloat (msg, eye[2]);
+
+ onum = 0;
+ for (i = 0;i < numstates;i++)
+ {
+ ent = states[i];
+ number = ent->number;
+
+ if (PRVM_serveredictfunction((&prog->edicts[number]), SendEntity))
+ continue;
+ for (;onum < o->numentities && o->entitydata[onum].number < number;onum++)
+ {
+ // write remove message
+ MSG_WriteShort(msg, o->entitydata[onum].number | 0x8000);
+ }
+ if (onum < o->numentities && (o->entitydata[onum].number == number))
+ {
+ // delta from previous frame
+ delta = o->entitydata + onum;
+ // advance to next entity in delta frame
+ onum++;
+ }
+ else
+ {
+ // delta from defaults
+ delta = &defaultstate;
+ }
+ EntityState_WriteUpdate(ent, msg, delta);
+ }
+ for (;onum < o->numentities;onum++)
+ {
+ // write remove message
+ MSG_WriteShort(msg, o->entitydata[onum].number | 0x8000);
+ }
+ MSG_WriteShort(msg, 0xFFFF);
+
+ return true;
+}
+
+// (client) reads a frame from network stream
+void EntityFrame_CL_ReadFrame(void)
+{
+ int i, number, removed;
+ entity_frame_t *f, *delta;
+ entity_state_t *e, *old, *oldend;
+ entity_t *ent;
+ entityframe_database_t *d;
+ if (!cl.entitydatabase)
+ cl.entitydatabase = EntityFrame_AllocDatabase(cls.levelmempool);
+ d = cl.entitydatabase;
+ f = &d->framedata;
+ delta = &d->deltaframe;
+
+ EntityFrame_Clear(f, NULL, -1);
+
+ // read the frame header info
+ f->time = cl.mtime[0];
+ number = MSG_ReadLong();
+ f->framenum = MSG_ReadLong();
+ CL_NewFrameReceived(f->framenum);
+ f->eye[0] = MSG_ReadFloat();
+ f->eye[1] = MSG_ReadFloat();
+ f->eye[2] = MSG_ReadFloat();
+ EntityFrame_AckFrame(d, number);
+ EntityFrame_FetchFrame(d, number, delta);
+ old = delta->entitydata;
+ oldend = old + delta->numentities;
+ // read entities until we hit the magic 0xFFFF end tag
+ while ((number = (unsigned short) MSG_ReadShort()) != 0xFFFF && !msg_badread)
+ {
+ if (msg_badread)
+ Host_Error("EntityFrame_Read: read error");
+ removed = number & 0x8000;
+ number &= 0x7FFF;
+ if (number >= MAX_EDICTS)
+ Host_Error("EntityFrame_Read: number (%i) >= MAX_EDICTS (%i)", number, MAX_EDICTS);
+
+ // seek to entity, while copying any skipped entities (assume unchanged)
+ while (old < oldend && old->number < number)
+ {
+ if (f->numentities >= MAX_ENTITY_DATABASE)
+ Host_Error("EntityFrame_Read: entity list too big");
+ f->entitydata[f->numentities] = *old++;
+ f->entitydata[f->numentities++].time = cl.mtime[0];
+ }
+ if (removed)
+ {
+ if (old < oldend && old->number == number)
+ old++;
+ else
+ Con_Printf("EntityFrame_Read: REMOVE on unused entity %i\n", number);
+ }
+ else
+ {
+ if (f->numentities >= MAX_ENTITY_DATABASE)
+ Host_Error("EntityFrame_Read: entity list too big");
+
+ // reserve this slot
+ e = f->entitydata + f->numentities++;
+
+ if (old < oldend && old->number == number)
+ {
+ // delta from old entity
+ *e = *old++;
+ }
+ else
+ {
+ // delta from defaults
+ *e = defaultstate;
+ }
+
+ if (cl.num_entities <= number)
+ {
+ cl.num_entities = number + 1;
+ if (number >= cl.max_entities)
+ CL_ExpandEntities(number);
+ }
+ cl.entities_active[number] = true;
+ e->active = ACTIVE_NETWORK;
+ e->time = cl.mtime[0];
+ e->number = number;
+ EntityState_ReadFields(e, EntityState_ReadExtendBits());
+ }
+ }
+ while (old < oldend)
+ {
+ if (f->numentities >= MAX_ENTITY_DATABASE)
+ Host_Error("EntityFrame_Read: entity list too big");
+ f->entitydata[f->numentities] = *old++;
+ f->entitydata[f->numentities++].time = cl.mtime[0];
+ }
+ EntityFrame_AddFrame_Client(d, f->eye, f->framenum, f->numentities, f->entitydata);
+
+ memset(cl.entities_active, 0, cl.num_entities * sizeof(unsigned char));
+ number = 1;
+ for (i = 0;i < f->numentities;i++)
+ {
+ for (;number < f->entitydata[i].number && number < cl.num_entities;number++)
+ {
+ if (cl.entities_active[number])
+ {
+ cl.entities_active[number] = false;
+ cl.entities[number].state_current.active = ACTIVE_NOT;
+ }
+ }
+ if (number >= cl.num_entities)
+ break;
+ // update the entity
+ ent = &cl.entities[number];
+ ent->state_previous = ent->state_current;
+ ent->state_current = f->entitydata[i];
+ CL_MoveLerpEntityStates(ent);
+ // the entity lives again...
+ cl.entities_active[number] = true;
+ number++;
+ }
+ for (;number < cl.num_entities;number++)
+ {
+ if (cl.entities_active[number])
+ {
+ cl.entities_active[number] = false;
+ cl.entities[number].state_current.active = ACTIVE_NOT;
+ }
+ }
+}
+
+
+// (client) returns the frame number of the most recent frame recieved
+int EntityFrame_MostRecentlyRecievedFrameNum(entityframe_database_t *d)
+{
+ if (d->numframes)
+ return d->frames[d->numframes - 1].framenum;
+ else
+ return -1;
+}
+
+
+
+
+
+
+entity_state_t *EntityFrame4_GetReferenceEntity(entityframe4_database_t *d, int number)
+{
+ if (d->maxreferenceentities <= number)
+ {
+ int oldmax = d->maxreferenceentities;
+ entity_state_t *oldentity = d->referenceentity;
+ d->maxreferenceentities = (number + 15) & ~7;
+ d->referenceentity = (entity_state_t *)Mem_Alloc(d->mempool, d->maxreferenceentities * sizeof(*d->referenceentity));
+ if (oldentity)
+ {
+ memcpy(d->referenceentity, oldentity, oldmax * sizeof(*d->referenceentity));
+ Mem_Free(oldentity);
+ }
+ // clear the newly created entities
+ for (;oldmax < d->maxreferenceentities;oldmax++)
+ {
+ d->referenceentity[oldmax] = defaultstate;
+ d->referenceentity[oldmax].number = oldmax;
+ }
+ }
+ return d->referenceentity + number;
+}
+
+void EntityFrame4_AddCommitEntity(entityframe4_database_t *d, const entity_state_t *s)
+{
+ // resize commit's entity list if full
+ if (d->currentcommit->maxentities <= d->currentcommit->numentities)
+ {
+ entity_state_t *oldentity = d->currentcommit->entity;
+ d->currentcommit->maxentities += 8;
+ d->currentcommit->entity = (entity_state_t *)Mem_Alloc(d->mempool, d->currentcommit->maxentities * sizeof(*d->currentcommit->entity));
+ if (oldentity)
+ {
+ memcpy(d->currentcommit->entity, oldentity, d->currentcommit->numentities * sizeof(*d->currentcommit->entity));
+ Mem_Free(oldentity);
+ }
+ }
+ d->currentcommit->entity[d->currentcommit->numentities++] = *s;
+}
+
+entityframe4_database_t *EntityFrame4_AllocDatabase(mempool_t *pool)
+{
+ entityframe4_database_t *d;
+ d = (entityframe4_database_t *)Mem_Alloc(pool, sizeof(*d));
+ d->mempool = pool;
+ EntityFrame4_ResetDatabase(d);
+ return d;
+}
+
+void EntityFrame4_FreeDatabase(entityframe4_database_t *d)
+{
+ int i;
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ if (d->commit[i].entity)
+ Mem_Free(d->commit[i].entity);
+ if (d->referenceentity)
+ Mem_Free(d->referenceentity);
+ Mem_Free(d);
+}
+
+void EntityFrame4_ResetDatabase(entityframe4_database_t *d)
+{
+ int i;
+ d->referenceframenum = -1;
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ d->commit[i].numentities = 0;
+ for (i = 0;i < d->maxreferenceentities;i++)
+ d->referenceentity[i] = defaultstate;
+}
+
+int EntityFrame4_AckFrame(entityframe4_database_t *d, int framenum, int servermode)
+{
+ int i, j, found;
+ entity_database4_commit_t *commit;
+ if (framenum == -1)
+ {
+ // reset reference, but leave commits alone
+ d->referenceframenum = -1;
+ for (i = 0;i < d->maxreferenceentities;i++)
+ d->referenceentity[i] = defaultstate;
+ // if this is the server, remove commits
+ for (i = 0, commit = d->commit;i < MAX_ENTITY_HISTORY;i++, commit++)
+ commit->numentities = 0;
+ found = true;
+ }
+ else if (d->referenceframenum == framenum)
+ found = true;
+ else
+ {
+ found = false;
+ for (i = 0, commit = d->commit;i < MAX_ENTITY_HISTORY;i++, commit++)
+ {
+ if (commit->numentities && commit->framenum <= framenum)
+ {
+ if (commit->framenum == framenum)
+ {
+ found = true;
+ d->referenceframenum = framenum;
+ if (developer_networkentities.integer >= 3)
+ {
+ for (j = 0;j < commit->numentities;j++)
+ {
+ entity_state_t *s = EntityFrame4_GetReferenceEntity(d, commit->entity[j].number);
+ if (commit->entity[j].active != s->active)
+ {
+ if (commit->entity[j].active == ACTIVE_NETWORK)
+ Con_Printf("commit entity %i has become active (modelindex %i)\n", commit->entity[j].number, commit->entity[j].modelindex);
+ else
+ Con_Printf("commit entity %i has become inactive (modelindex %i)\n", commit->entity[j].number, commit->entity[j].modelindex);
+ }
+ *s = commit->entity[j];
+ }
+ }
+ else
+ for (j = 0;j < commit->numentities;j++)
+ *EntityFrame4_GetReferenceEntity(d, commit->entity[j].number) = commit->entity[j];
+ }
+ commit->numentities = 0;
+ }
+ }
+ }
+ if (developer_networkentities.integer >= 1)
+ {
+ Con_Printf("ack ref:%i database updated to: ref:%i commits:", framenum, d->referenceframenum);
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ if (d->commit[i].numentities)
+ Con_Printf(" %i", d->commit[i].framenum);
+ Con_Print("\n");
+ }
+ return found;
+}
+
+void EntityFrame4_CL_ReadFrame(void)
+{
+ int i, n, cnumber, referenceframenum, framenum, enumber, done, stopnumber, skip = false;
+ entity_state_t *s;
+ entityframe4_database_t *d;
+ if (!cl.entitydatabase4)
+ cl.entitydatabase4 = EntityFrame4_AllocDatabase(cls.levelmempool);
+ d = cl.entitydatabase4;
+ // read the number of the frame this refers to
+ referenceframenum = MSG_ReadLong();
+ // read the number of this frame
+ framenum = MSG_ReadLong();
+ CL_NewFrameReceived(framenum);
+ // read the start number
+ enumber = (unsigned short) MSG_ReadShort();
+ if (developer_networkentities.integer >= 10)
+ {
+ Con_Printf("recv svc_entities num:%i ref:%i database: ref:%i commits:", framenum, referenceframenum, d->referenceframenum);
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ if (d->commit[i].numentities)
+ Con_Printf(" %i", d->commit[i].framenum);
+ Con_Print("\n");
+ }
+ if (!EntityFrame4_AckFrame(d, referenceframenum, false))
+ {
+ Con_Print("EntityFrame4_CL_ReadFrame: reference frame invalid (VERY BAD ERROR), this update will be skipped\n");
+ skip = true;
+ }
+ d->currentcommit = NULL;
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ {
+ if (!d->commit[i].numentities)
+ {
+ d->currentcommit = d->commit + i;
+ d->currentcommit->framenum = framenum;
+ d->currentcommit->numentities = 0;
+ }
+ }
+ if (d->currentcommit == NULL)
+ {
+ Con_Printf("EntityFrame4_CL_ReadFrame: error while decoding frame %i: database full, reading but not storing this update\n", framenum);
+ skip = true;
+ }
+ done = false;
+ while (!done && !msg_badread)
+ {
+ // read the number of the modified entity
+ // (gaps will be copied unmodified)
+ n = (unsigned short)MSG_ReadShort();
+ if (n == 0x8000)
+ {
+ // no more entities in this update, but we still need to copy the
+ // rest of the reference entities (final gap)
+ done = true;
+ // read end of range number, then process normally
+ n = (unsigned short)MSG_ReadShort();
+ }
+ // high bit means it's a remove message
+ cnumber = n & 0x7FFF;
+ // if this is a live entity we may need to expand the array
+ if (cl.num_entities <= cnumber && !(n & 0x8000))
+ {
+ cl.num_entities = cnumber + 1;
+ if (cnumber >= cl.max_entities)
+ CL_ExpandEntities(cnumber);
+ }
+ // add one (the changed one) if not done
+ stopnumber = cnumber + !done;
+ // process entities in range from the last one to the changed one
+ for (;enumber < stopnumber;enumber++)
+ {
+ if (skip || enumber >= cl.num_entities)
+ {
+ if (enumber == cnumber && (n & 0x8000) == 0)
+ {
+ entity_state_t tempstate;
+ EntityState_ReadFields(&tempstate, EntityState_ReadExtendBits());
+ }
+ continue;
+ }
+ // slide the current into the previous slot
+ cl.entities[enumber].state_previous = cl.entities[enumber].state_current;
+ // copy a new current from reference database
+ cl.entities[enumber].state_current = *EntityFrame4_GetReferenceEntity(d, enumber);
+ s = &cl.entities[enumber].state_current;
+ // if this is the one to modify, read more data...
+ if (enumber == cnumber)
+ {
+ if (n & 0x8000)
+ {
+ // simply removed
+ if (developer_networkentities.integer >= 2)
+ Con_Printf("entity %i: remove\n", enumber);
+ *s = defaultstate;
+ }
+ else
+ {
+ // read the changes
+ if (developer_networkentities.integer >= 2)
+ Con_Printf("entity %i: update\n", enumber);
+ s->active = ACTIVE_NETWORK;
+ EntityState_ReadFields(s, EntityState_ReadExtendBits());
+ }
+ }
+ else if (developer_networkentities.integer >= 4)
+ Con_Printf("entity %i: copy\n", enumber);
+ // set the cl.entities_active flag
+ cl.entities_active[enumber] = (s->active == ACTIVE_NETWORK);
+ // set the update time
+ s->time = cl.mtime[0];
+ // fix the number (it gets wiped occasionally by copying from defaultstate)
+ s->number = enumber;
+ // check if we need to update the lerp stuff
+ if (s->active == ACTIVE_NETWORK)
+ CL_MoveLerpEntityStates(&cl.entities[enumber]);
+ // add this to the commit entry whether it is modified or not
+ if (d->currentcommit)
+ EntityFrame4_AddCommitEntity(d, &cl.entities[enumber].state_current);
+ // print extra messages if desired
+ if (developer_networkentities.integer >= 2 && cl.entities[enumber].state_current.active != cl.entities[enumber].state_previous.active)
+ {
+ if (cl.entities[enumber].state_current.active == ACTIVE_NETWORK)
+ Con_Printf("entity #%i has become active\n", enumber);
+ else if (cl.entities[enumber].state_previous.active)
+ Con_Printf("entity #%i has become inactive\n", enumber);
+ }
+ }
+ }
+ d->currentcommit = NULL;
+ if (skip)
+ EntityFrame4_ResetDatabase(d);
+}
+
+qboolean EntityFrame4_WriteFrame(sizebuf_t *msg, int maxsize, entityframe4_database_t *d, int numstates, const entity_state_t **states)
+{
+ const entity_state_t *e, *s;
+ entity_state_t inactiveentitystate;
+ int i, n, startnumber;
+ sizebuf_t buf;
+ unsigned char data[128];
+
+ // if there isn't enough space to accomplish anything, skip it
+ if (msg->cursize + 24 > maxsize)
+ return false;
+
+ // prepare the buffer
+ memset(&buf, 0, sizeof(buf));
+ buf.data = data;
+ buf.maxsize = sizeof(data);
+
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ if (!d->commit[i].numentities)
+ break;
+ // if commit buffer full, just don't bother writing an update this frame
+ if (i == MAX_ENTITY_HISTORY)
+ return false;
+ d->currentcommit = d->commit + i;
+
+ // this state's number gets played around with later
+ inactiveentitystate = defaultstate;
+
+ d->currentcommit->numentities = 0;
+ d->currentcommit->framenum = ++d->latestframenumber;
+ MSG_WriteByte(msg, svc_entities);
+ MSG_WriteLong(msg, d->referenceframenum);
+ MSG_WriteLong(msg, d->currentcommit->framenum);
+ if (developer_networkentities.integer >= 10)
+ {
+ Con_Printf("send svc_entities num:%i ref:%i (database: ref:%i commits:", d->currentcommit->framenum, d->referenceframenum, d->referenceframenum);
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ if (d->commit[i].numentities)
+ Con_Printf(" %i", d->commit[i].framenum);
+ Con_Print(")\n");
+ }
+ if (d->currententitynumber >= prog->max_edicts)
+ startnumber = 1;
+ else
+ startnumber = bound(1, d->currententitynumber, prog->max_edicts - 1);
+ MSG_WriteShort(msg, startnumber);
+ // reset currententitynumber so if the loop does not break it we will
+ // start at beginning next frame (if it does break, it will set it)
+ d->currententitynumber = 1;
+ for (i = 0, n = startnumber;n < prog->max_edicts;n++)
+ {
+ if (PRVM_serveredictfunction((&prog->edicts[n]), SendEntity))
+ continue;
+ // find the old state to delta from
+ e = EntityFrame4_GetReferenceEntity(d, n);
+ // prepare the buffer
+ SZ_Clear(&buf);
+ // entity exists, build an update (if empty there is no change)
+ // find the state in the list
+ for (;i < numstates && states[i]->number < n;i++);
+ // make the message
+ s = states[i];
+ if (s->number == n)
+ {
+ // build the update
+ EntityState_WriteUpdate(s, &buf, e);
+ }
+ else
+ {
+ inactiveentitystate.number = n;
+ s = &inactiveentitystate;
+ if (e->active == ACTIVE_NETWORK)
+ {
+ // entity used to exist but doesn't anymore, send remove
+ MSG_WriteShort(&buf, n | 0x8000);
+ }
+ }
+ // if the commit is full, we're done this frame
+ if (msg->cursize + buf.cursize > maxsize - 4)
+ {
+ // next frame we will continue where we left off
+ break;
+ }
+ // add the entity to the commit
+ EntityFrame4_AddCommitEntity(d, s);
+ // if the message is empty, skip out now
+ if (buf.cursize)
+ {
+ // write the message to the packet
+ SZ_Write(msg, buf.data, buf.cursize);
+ }
+ }
+ d->currententitynumber = n;
+
+ // remove world message (invalid, and thus a good terminator)
+ MSG_WriteShort(msg, 0x8000);
+ // write the number of the end entity
+ MSG_WriteShort(msg, d->currententitynumber);
+ // just to be sure
+ d->currentcommit = NULL;
+
+ return true;
+}
+
+
+
+
+entityframe5_database_t *EntityFrame5_AllocDatabase(mempool_t *pool)
+{
+ int i;
+ entityframe5_database_t *d;
+ d = (entityframe5_database_t *)Mem_Alloc(pool, sizeof(*d));
+ d->latestframenum = 0;
+ for (i = 0;i < d->maxedicts;i++)
+ d->states[i] = defaultstate;
+ return d;
+}
+
+void EntityFrame5_FreeDatabase(entityframe5_database_t *d)
+{
+ // all the [maxedicts] memory is allocated at once, so there's only one
+ // thing to free
+ if (d->maxedicts)
+ Mem_Free(d->deltabits);
+ Mem_Free(d);
+}
+
+static void EntityFrame5_ExpandEdicts(entityframe5_database_t *d, int newmax)
+{
+ if (d->maxedicts < newmax)
+ {
+ unsigned char *data;
+ int oldmaxedicts = d->maxedicts;
+ int *olddeltabits = d->deltabits;
+ unsigned char *oldpriorities = d->priorities;
+ int *oldupdateframenum = d->updateframenum;
+ entity_state_t *oldstates = d->states;
+ unsigned char *oldvisiblebits = d->visiblebits;
+ d->maxedicts = newmax;
+ data = (unsigned char *)Mem_Alloc(sv_mempool, d->maxedicts * sizeof(int) + d->maxedicts * sizeof(unsigned char) + d->maxedicts * sizeof(int) + d->maxedicts * sizeof(entity_state_t) + (d->maxedicts+7)/8 * sizeof(unsigned char));
+ d->deltabits = (int *)data;data += d->maxedicts * sizeof(int);
+ d->priorities = (unsigned char *)data;data += d->maxedicts * sizeof(unsigned char);
+ d->updateframenum = (int *)data;data += d->maxedicts * sizeof(int);
+ d->states = (entity_state_t *)data;data += d->maxedicts * sizeof(entity_state_t);
+ d->visiblebits = (unsigned char *)data;data += (d->maxedicts+7)/8 * sizeof(unsigned char);
+ if (oldmaxedicts)
+ {
+ memcpy(d->deltabits, olddeltabits, oldmaxedicts * sizeof(int));
+ memcpy(d->priorities, oldpriorities, oldmaxedicts * sizeof(unsigned char));
+ memcpy(d->updateframenum, oldupdateframenum, oldmaxedicts * sizeof(int));
+ memcpy(d->states, oldstates, oldmaxedicts * sizeof(entity_state_t));
+ memcpy(d->visiblebits, oldvisiblebits, (oldmaxedicts+7)/8 * sizeof(unsigned char));
+ // the previous buffers were a single allocation, so just one free
+ Mem_Free(olddeltabits);
+ }
+ }
+}
+
+static int EntityState5_Priority(entityframe5_database_t *d, int stateindex)
+{
+ int limit, priority;
+ entity_state_t *s = NULL; // hush compiler warning by initializing this
+ // if it is the player, update urgently
+ if (stateindex == d->viewentnum)
+ return ENTITYFRAME5_PRIORITYLEVELS - 1;
+ // priority increases each frame no matter what happens
+ priority = d->priorities[stateindex] + 1;
+ // players get an extra priority boost
+ if (stateindex <= svs.maxclients)
+ priority++;
+ // remove dead entities very quickly because they are just 2 bytes
+ if (d->states[stateindex].active != ACTIVE_NETWORK)
+ {
+ priority++;
+ return bound(1, priority, ENTITYFRAME5_PRIORITYLEVELS - 1);
+ }
+ // certain changes are more noticable than others
+ if (d->deltabits[stateindex] & (E5_FULLUPDATE | E5_ATTACHMENT | E5_MODEL | E5_FLAGS | E5_COLORMAP))
+ priority++;
+ // find the root entity this one is attached to, and judge relevance by it
+ for (limit = 0;limit < 256;limit++)
+ {
+ s = d->states + stateindex;
+ if (s->flags & RENDER_VIEWMODEL)
+ stateindex = d->viewentnum;
+ else if (s->tagentity)
+ stateindex = s->tagentity;
+ else
+ break;
+ if (d->maxedicts < stateindex)
+ EntityFrame5_ExpandEdicts(d, (stateindex+256)&~255);
+ }
+ if (limit >= 256)
+ Con_DPrintf("Protocol: Runaway loop recursing tagentity links on entity %i\n", stateindex);
+ // now that we have the parent entity we can make some decisions based on
+ // distance from the player
+ if (VectorDistance(d->states[d->viewentnum].netcenter, s->netcenter) < 1024.0f)
+ priority++;
+ return bound(1, priority, ENTITYFRAME5_PRIORITYLEVELS - 1);