void ClearStateToDefault(entity_state_t *s)
{
- s->time = 0;
- VectorClear(s->origin);
- VectorClear(s->angles);
- s->effects = 0;
- s->modelindex = 0;
- s->frame = 0;
- s->colormap = 0;
- s->skin = 0;
+ memset(s, 0, sizeof(*s));
s->alpha = 255;
s->scale = 16;
- s->glowsize = 0;
s->glowcolor = 254;
- s->colormod = 255;
- s->flags = 0;
- s->active = 0;
+}
+
+void EntityState_Write(entity_state_t *ent, sizebuf_t *msg, entity_state_t *delta)
+{
+ int bits;
+ vec3_t org, deltaorg;
+ if (ent->active)
+ {
+ bits = 0;
+ VectorCopy(ent->origin, org);
+ VectorCopy(delta->origin, deltaorg);
+ if (ent->flags & RENDER_LOWPRECISION)
+ {
+ if (org[0] > 0)
+ org[0] = (int) (org[0] + 0.5f);
+ else
+ org[0] = (int) (org[0] - 0.5f);
+ if (org[1] > 0)
+ org[1] = (int) (org[1] + 0.5f);
+ else
+ org[1] = (int) (org[1] - 0.5f);
+ if (org[2] > 0)
+ org[2] = (int) (org[2] + 0.5f);
+ else
+ org[2] = (int) (org[2] - 0.5f);
+ }
+ if (delta->flags & RENDER_LOWPRECISION)
+ {
+ if (deltaorg[0] > 0)
+ deltaorg[0] = (int) (deltaorg[0] + 0.5f);
+ else
+ deltaorg[0] = (int) (deltaorg[0] - 0.5f);
+ if (deltaorg[1] > 0)
+ deltaorg[1] = (int) (deltaorg[1] + 0.5f);
+ else
+ deltaorg[1] = (int) (deltaorg[1] - 0.5f);
+ if (deltaorg[2] > 0)
+ deltaorg[2] = (int) (deltaorg[2] + 0.5f);
+ else
+ deltaorg[2] = (int) (deltaorg[2] - 0.5f);
+ }
+ if (fabs(org[0] - deltaorg[0]) > 0.01f)
+ bits |= E_ORIGIN1;
+ if (fabs(org[1] - deltaorg[1]) > 0.01f)
+ bits |= E_ORIGIN2;
+ if (fabs(org[2] - deltaorg[2]) > 0.01f)
+ bits |= E_ORIGIN3;
+ if ((qbyte) (ent->angles[0] * (256.0f / 360.0f)) != (qbyte) (delta->angles[0] * (256.0f / 360.0f)))
+ bits |= E_ANGLE1;
+ if ((qbyte) (ent->angles[1] * (256.0f / 360.0f)) != (qbyte) (delta->angles[1] * (256.0f / 360.0f)))
+ bits |= E_ANGLE2;
+ if ((qbyte) (ent->angles[2] * (256.0f / 360.0f)) != (qbyte) (delta->angles[2] * (256.0f / 360.0f)))
+ bits |= E_ANGLE3;
+ if ((ent->modelindex ^ delta->modelindex) & 0x00FF)
+ bits |= E_MODEL1;
+ if ((ent->modelindex ^ delta->modelindex) & 0xFF00)
+ bits |= E_MODEL2;
+ if ((ent->frame ^ delta->frame) & 0x00FF)
+ bits |= E_FRAME1;
+ if ((ent->frame ^ delta->frame) & 0xFF00)
+ bits |= E_FRAME2;
+ if ((ent->effects ^ delta->effects) & 0x00FF)
+ bits |= E_EFFECTS1;
+ if ((ent->effects ^ delta->effects) & 0xFF00)
+ bits |= E_EFFECTS2;
+ if (ent->colormap != delta->colormap)
+ bits |= E_COLORMAP;
+ if (ent->skin != delta->skin)
+ bits |= E_SKIN;
+ if (ent->alpha != delta->alpha)
+ bits |= E_ALPHA;
+ if (ent->scale != delta->scale)
+ bits |= E_SCALE;
+ if (ent->glowsize != delta->glowsize)
+ bits |= E_GLOWSIZE;
+ if (ent->glowcolor != delta->glowcolor)
+ bits |= E_GLOWCOLOR;
+ if (ent->flags != delta->flags)
+ bits |= E_FLAGS;
+ if (ent->tagindex != delta->tagindex || ent->tagentity != delta->tagentity)
+ bits |= E_TAGATTACHMENT;
+
+ if (bits) // don't send anything if it hasn't changed
+ {
+ if (bits & 0xFF000000)
+ bits |= E_EXTEND3;
+ if (bits & 0x00FF0000)
+ bits |= E_EXTEND2;
+ if (bits & 0x0000FF00)
+ bits |= E_EXTEND1;
+
+ MSG_WriteShort(msg, ent->number);
+ MSG_WriteByte(msg, bits & 0xFF);
+ if (bits & E_EXTEND1)
+ {
+ MSG_WriteByte(msg, (bits >> 8) & 0xFF);
+ if (bits & E_EXTEND2)
+ {
+ MSG_WriteByte(msg, (bits >> 16) & 0xFF);
+ if (bits & E_EXTEND3)
+ MSG_WriteByte(msg, (bits >> 24) & 0xFF);
+ }
+ }
+ // 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_WriteShort(msg, org[0]);
+ if (bits & E_ORIGIN2)
+ MSG_WriteShort(msg, org[1]);
+ if (bits & E_ORIGIN3)
+ MSG_WriteShort(msg, org[2]);
+ }
+ else
+ {
+ if (bits & E_ORIGIN1)
+ MSG_WriteFloat(msg, org[0]);
+ if (bits & E_ORIGIN2)
+ MSG_WriteFloat(msg, org[1]);
+ if (bits & E_ORIGIN3)
+ MSG_WriteFloat(msg, org[2]);
+ }
+ if (bits & E_ANGLE1)
+ MSG_WriteAngle(msg, ent->angles[0]);
+ if (bits & E_ANGLE2)
+ MSG_WriteAngle(msg, ent->angles[1]);
+ if (bits & E_ANGLE3)
+ MSG_WriteAngle(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 (bits & E_TAGATTACHMENT)
+ {
+ MSG_WriteShort(msg, ent->tagentity);
+ MSG_WriteByte(msg, ent->tagindex);
+ }
+ }
+ }
+ else if (!delta->active)
+ MSG_WriteShort(msg, ent->number | 0x8000);
+}
+
+void EntityState_Read(entity_state_t *e, entity_state_t *delta, int number)
+{
+ int bits;
+ memcpy(e, delta, sizeof(*e));
+ e->active = true;
+ e->time = cl.mtime[0];
+ e->number = number;
+
+ bits = MSG_ReadByte();
+ if (bits & E_EXTEND1)
+ {
+ bits |= MSG_ReadByte() << 8;
+ if (bits & E_EXTEND2)
+ {
+ bits |= MSG_ReadByte() << 16;
+ if (bits & E_EXTEND3)
+ bits |= MSG_ReadByte() << 24;
+ }
+ }
+
+ if (dpprotocol == DPPROTOCOL_VERSION2)
+ {
+ if (bits & E_ORIGIN1)
+ e->origin[0] = (signed short) MSG_ReadShort();
+ if (bits & E_ORIGIN2)
+ e->origin[1] = (signed short) MSG_ReadShort();
+ if (bits & E_ORIGIN3)
+ e->origin[2] = (signed short) MSG_ReadShort();
+ }
+ else
+ {
+ if (bits & E_FLAGS)
+ e->flags = MSG_ReadByte();
+ if (e->flags & RENDER_LOWPRECISION || dpprotocol == DPPROTOCOL_VERSION2)
+ {
+ if (bits & E_ORIGIN1)
+ e->origin[0] = (signed short) MSG_ReadShort();
+ if (bits & E_ORIGIN2)
+ e->origin[1] = (signed short) MSG_ReadShort();
+ if (bits & E_ORIGIN3)
+ e->origin[2] = (signed short) MSG_ReadShort();
+ }
+ else
+ {
+ if (bits & E_ORIGIN1)
+ e->origin[0] = MSG_ReadFloat();
+ if (bits & E_ORIGIN2)
+ e->origin[1] = MSG_ReadFloat();
+ if (bits & E_ORIGIN3)
+ e->origin[2] = MSG_ReadFloat();
+ }
+ }
+ if (bits & E_ANGLE1)
+ e->angles[0] = MSG_ReadAngle();
+ if (bits & E_ANGLE2)
+ e->angles[1] = MSG_ReadAngle();
+ if (bits & E_ANGLE3)
+ e->angles[2] = MSG_ReadAngle();
+ 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 (dpprotocol == DPPROTOCOL_VERSION2)
+ if (bits & E_FLAGS)
+ e->flags = MSG_ReadByte();
+ if (bits & E_TAGATTACHMENT)
+ {
+ e->tagentity = MSG_ReadShort();
+ e->tagindex = MSG_ReadByte();
+ }
+}
+
+// (server) clears the database to contain no frames (thus delta compression compresses against nothing)
+void EntityFrame_ClearDatabase(entity_database_t *d)
+{
+ memset(d, 0, sizeof(*d));
+}
+
+// (server and client) removes frames older than 'frame' from database
+void EntityFrame_AckFrame(entity_database_t *d, int frame)
+{
+ int i;
+ if (d->ackframe < frame)
+ d->ackframe = 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) adds an entity to frame
+void EntityFrame_AddEntity(entity_frame_t *f, entity_state_t *s)
+{
+ if (f->numentities < MAX_ENTITY_DATABASE)
+ {
+ f->entitydata[f->numentities] = *s;
+ f->entitydata[f->numentities++].active = true;
+ }
+}
+
+// (server and client) reads a frame from the database
+void EntityFrame_FetchFrame(entity_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);
+ }
+}
+
+// (server and client) adds a entity_frame to the database, for future reference
+void EntityFrame_AddFrame(entity_database_t *d, entity_frame_t *f)
+{
+ int n, e;
+ entity_frameinfo_t *info;
+
+ VectorCopy(f->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 + f->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 = f->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 == f->framenum)
+ Con_Printf("EntityFrame_AddFrame: tried to add out of sequence frame to database\n");
+ else
+ Con_Printf("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 + f->numentities;
+ d->numframes++;
+
+ n = info->firstentity % MAX_ENTITY_DATABASE;
+ e = MAX_ENTITY_DATABASE - n;
+ if (e > f->numentities)
+ e = f->numentities;
+ memcpy(d->entitydata + n, f->entitydata, sizeof(entity_state_t) * e);
+ if (f->numentities > e)
+ memcpy(d->entitydata, f->entitydata + e, sizeof(entity_state_t) * (f->numentities - e));
+}
+
+// (server) writes a frame to network stream
+static entity_frame_t deltaframe; // FIXME?
+void EntityFrame_Write(entity_database_t *d, entity_frame_t *f, sizebuf_t *msg)
+{
+ int i, onum, number;
+ entity_frame_t *o = &deltaframe;
+ entity_state_t *ent, *delta, baseline;
+
+ EntityFrame_AddFrame(d, f);
+
+ ClearStateToDefault(&baseline);
+ EntityFrame_FetchFrame(d, d->ackframe > 0 ? d->ackframe : -1, o);
+ MSG_WriteByte (msg, svc_entities);
+ MSG_WriteLong (msg, o->framenum);
+ MSG_WriteLong (msg, f->framenum);
+ MSG_WriteFloat (msg, f->eye[0]);
+ MSG_WriteFloat (msg, f->eye[1]);
+ MSG_WriteFloat (msg, f->eye[2]);
+
+ onum = 0;
+ for (i = 0;i < f->numentities;i++)
+ {
+ ent = f->entitydata + i;
+ number = ent->number;
+ 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 baseline
+ delta = &baseline;
+ }
+ EntityState_Write(ent, msg, delta);
+ }
+ for (;onum < o->numentities;onum++)
+ {
+ // write remove message
+ MSG_WriteShort(msg, o->entitydata[onum].number | 0x8000);
+ }
+ MSG_WriteShort(msg, 0xFFFF);
+}
+
+// (client) reads a frame from network stream
+static entity_frame_t framedata; // FIXME?
+void EntityFrame_Read(entity_database_t *d)
+{
+ int number, removed;
+ entity_frame_t *f = &framedata, *delta = &deltaframe;
+ entity_state_t *e, baseline, *old, *oldend, *edelta;
+
+ ClearStateToDefault(&baseline);
+
+ EntityFrame_Clear(f, NULL, -1);
+
+ // read the frame header info
+ f->time = cl.mtime[0];
+ number = MSG_ReadLong();
+ f->framenum = MSG_ReadLong();
+ 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)
+ {
+ if (msg_badread)
+ Host_Error("EntityFrame_Read: read error\n");
+ removed = number & 0x8000;
+ number &= 0x7FFF;
+ if (number >= MAX_EDICTS)
+ Host_Error("EntityFrame_Read: number (%i) >= MAX_EDICTS (%i)\n", 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\n");
+ memcpy(f->entitydata + f->numentities, old, sizeof(entity_state_t));
+ f->entitydata[f->numentities].time = cl.mtime[0];
+ old++;
+ f->numentities++;
+ }
+ 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\n");
+
+ // reserve this slot
+ e = f->entitydata + f->numentities++;
+
+ if (old < oldend && old->number == number)
+ {
+ // delta from old entity
+ edelta = old++;
+ }
+ else
+ {
+ // delta from baseline
+ edelta = &baseline;
+ }
+
+ EntityState_Read(e, edelta, number);
+ }
+ }
+ while (old < oldend)
+ {
+ if (f->numentities >= MAX_ENTITY_DATABASE)
+ Host_Error("EntityFrame_Read: entity list too big\n");
+ memcpy(f->entitydata + f->numentities, old, sizeof(entity_state_t));
+ f->entitydata[f->numentities].time = cl.mtime[0];
+ old++;
+ f->numentities++;
+ }
+ EntityFrame_AddFrame(d, f);
+}
+
+
+// (client) returns the frame number of the most recent frame recieved
+int EntityFrame_MostRecentlyRecievedFrameNum(entity_database_t *d)
+{
+ if (d->numframes)
+ return d->frames[d->numframes - 1].framenum;
+ else
+ return -1;
+}
+
+
+
+
+
+
+static int EntityFrame4_SV_ChooseCommitToReplace(entity_database4_t *d)
+{
+ int i, best, bestframenum;
+ best = 0;
+ bestframenum = d->commit[0].framenum;
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ {
+ if (!d->commit[i].numentities)
+ return i;
+ if (bestframenum > d->commit[i].framenum)
+ {
+ bestframenum = d->commit[i].framenum;
+ best = i;
+ }
+ }
+ return best;
+}
+
+static entity_state_t *EntityFrame4_GetReferenceEntity(entity_database4_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 = 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++)
+ ClearStateToDefault(d->referenceentity + oldmax);
+ }
+ return d->referenceentity + number;
+}
+
+static void EntityFrame4_AddCommitEntity(entity_database4_t *d, 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 = 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;
+}
+
+entity_database4_t *EntityFrame4_AllocDatabase(mempool_t *pool)
+{
+ entity_database4_t *d;
+ d = Mem_Alloc(pool, sizeof(*d));
+ d->mempool = pool;
+ d->referenceframenum = -1;
+ return d;
+}
+
+void EntityFrame4_FreeDatabase(entity_database4_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(entity_database4_t *d)
+{
+ int i;
+ d->referenceframenum = -1;
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ d->commit[i].numentities = 0;
+}
+
+void EntityFrame4_AckFrame(entity_database4_t *d, int framenum)
+{
+ int i, foundit = false;
+ // check if client is requesting no delta compression
+ if (framenum == -1)
+ {
+ EntityFrame4_ResetDatabase(d);
+ return;
+ }
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ {
+ if (d->commit[i].numentities && d->commit[i].framenum <= framenum)
+ {
+ if (d->commit[i].framenum == framenum)
+ {
+ // apply commit to database
+ d->referenceframenum = d->commit[i].framenum;
+ while (d->commit[i].numentities--)
+ *EntityFrame4_GetReferenceEntity(d, d->commit[i].entity[d->commit[i].numentities].number) = d->commit[i].entity[d->commit[i].numentities];
+ foundit = true;
+ }
+ d->commit[i].numentities = 0;
+ d->commit[i].framenum = -1;
+ }
+ }
+ if (!foundit)
+ Con_DPrintf("EntityFrame4_AckFrame: frame %i not found in database, expect glitches!\n", framenum);
+}
+
+void EntityFrame4_SV_WriteFrame_Begin(entity_database4_t *d, sizebuf_t *msg, int framenum)
+{
+ d->currentcommit = d->commit + EntityFrame4_SV_ChooseCommitToReplace(d);
+ d->currentcommit->numentities = 0;
+ d->currentcommit->framenum = framenum;
+ MSG_WriteByte(msg, svc_entities);
+ MSG_WriteLong(msg, d->referenceframenum);
+ MSG_WriteLong(msg, d->currentcommit->framenum);
+}
+
+int EntityFrame4_SV_WriteFrame_Entity(entity_database4_t *d, sizebuf_t *msg, int maxbytes, entity_state_t *s)
+{
+ qbyte data[128];
+ sizebuf_t buf;
+ entity_state_t *e;
+ // prepare the buffer
+ memset(&buf, 0, sizeof(buf));
+ buf.data = data;
+ buf.maxsize = sizeof(data);
+ // make the message
+ e = EntityFrame4_GetReferenceEntity(d, s->number);
+ if (s->active)
+ {
+ // entity exists, send an update
+ EntityState_Write(s, &buf, e);
+ }
+ else if (e->active)
+ {
+ // entity used to exist but doesn't anymore, send remove
+ MSG_WriteShort(&buf, s->number | 0x8000);
+ }
+ // if the message is empty, skip out now
+ if (!buf.cursize)
+ return true;
+ // if the commit is full, we're done
+ if (msg->cursize + buf.cursize + 2 >= min(msg->maxsize, maxbytes))
+ return false;
+ // add the entity to the commit
+ EntityFrame4_AddCommitEntity(d, s);
+ // write the message to the packet
+ SZ_Write(msg, buf.data, buf.cursize);
+ // carry on
+ return true;
+}
+
+void EntityFrame4_SV_WriteFrame_End(entity_database4_t *d, sizebuf_t *msg)
+{
+ // remove world message (invalid, and thus a good terminator)
+ MSG_WriteShort(msg, 0x8000);
+ // just to be sure
+ d->currentcommit = NULL;
+}
+
+extern void CL_MoveLerpEntityStates(entity_t *ent);
+void EntityFrame4_CL_ReadFrame(entity_database4_t *d)
+{
+ int i, n, number, referenceframenum, framenum;
+ referenceframenum = MSG_ReadLong();
+ framenum = MSG_ReadLong();
+ EntityFrame4_AckFrame(d, referenceframenum);
+ for (i = 0;i < MAX_ENTITY_HISTORY;i++)
+ if (!d->commit[i].numentities)
+ break;
+ if (i < MAX_ENTITY_HISTORY)
+ {
+ d->currentcommit = d->commit + i;
+ d->currentcommit->framenum = framenum;
+ d->currentcommit->numentities = 0;
+ }
+ else
+ {
+ Con_Printf("EntityFrame4_CL_ReadFrame: error while decoding frame %i: database full, resetting, expect glitches!!\n", framenum);
+ d->currentcommit = NULL;
+ EntityFrame4_ResetDatabase(d);
+ }
+ while((n = MSG_ReadShort()) != 0x8000)
+ {
+ number = n & 0x7FFF;
+ cl_entities[number].state_previous = cl_entities[number].state_current;
+ if (number & 0x8000)
+ {
+ ClearStateToDefault(&cl_entities[number].state_current);
+ cl_entities[number].state_current.active = false;
+ cl_entities[number].state_current.number = number;
+ }
+ else
+ EntityState_Read(&cl_entities[number].state_current, EntityFrame4_GetReferenceEntity(d, number), number);
+ CL_MoveLerpEntityStates(&cl_entities[number]);
+ cl_entities_active[number] = true;
+ if (d->currentcommit)
+ EntityFrame4_AddCommitEntity(d, &cl_entities[number].state_current);
+ }
+ d->currentcommit = NULL;
}
projects / xonotic / darkplaces.git / blobdiff