public void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex, DynamicComponentTypeHandle *ghostChunkComponentTypesPtr, int ghostChunkComponentTypesLength)
{
GhostComponentCollection = GhostComponentCollectionFromEntity[GhostCollectionSingleton];
GhostTypeCollection = GhostTypeCollectionFromEntity[GhostCollectionSingleton];
GhostComponentIndex = GhostComponentIndexFromEntity[GhostCollectionSingleton];
bool predicted = chunk.Has(predictedGhostComponentType);
uint targetTick = predicted ? predictedTargetTick : interpolatedTargetTick;
float targetTickFraction = predicted ? 1.0f : interpolatedTargetTickFraction;
var deserializerState = new GhostDeserializerState
{
GhostMap = GhostMap,
GhostOwner = ghostOwnerId,
SendToOwner = SendToOwnerType.All
};
var ghostComponents = chunk.GetNativeArray(ghostType);
int ghostTypeId = ghostComponents.GetFirstGhostTypeId(out var firstGhost);
if (ghostTypeId < 0)
{
return;
}
var typeData = GhostTypeCollection[ghostTypeId];
var ghostSnapshotDataArray = chunk.GetNativeArray(ghostSnapshotDataType);
var ghostSnapshotDataBufferArray = chunk.GetBufferAccessor(ghostSnapshotDataBufferType);
var ghostSnapshotDynamicBufferArray = chunk.GetBufferAccessor(ghostSnapshotDynamicDataBufferType);
int changeMaskUints = GhostCollectionSystem.ChangeMaskArraySizeInUInts(typeData.ChangeMaskBits);
int snapshotOffset = GhostCollectionSystem.SnapshotSizeAligned(4 + changeMaskUints * 4);
int snapshotDataAtTickSize = UnsafeUtility.SizeOf <SnapshotData.DataAtTick>();
#if UNITY_EDITOR || DEVELOPMENT_BUILD
var minMaxOffset = ThreadIndex * (JobsUtility.CacheLineSize / 4);
#endif
var dataAtTick = new NativeArray <SnapshotData.DataAtTick>(ghostComponents.Length, Allocator.Temp);
var entityRange = new NativeList <int2>(ghostComponents.Length, Allocator.Temp);
int2 nextRange = default;
var predictedGhostComponentArray = chunk.GetNativeArray(predictedGhostComponentType);
bool canBeStatic = typeData.StaticOptimization;
// Find the ranges of entities which have data to apply, store the data to apply in an array while doing so
for (int ent = firstGhost; ent < ghostComponents.Length; ++ent)
{
// Pre spawned ghosts might not have the ghost type set yet - in that case we need to skip them until the GHostReceiveSystem has assigned the ghost type
if (ghostComponents[firstGhost].ghostType != ghostTypeId)
{
if (nextRange.y != 0)
{
entityRange.Add(nextRange);
}
nextRange = default;
continue;
}
var snapshotDataBuffer = ghostSnapshotDataBufferArray[ent];
var ghostSnapshotData = ghostSnapshotDataArray[ent];
var latestTick = ghostSnapshotData.GetLatestTick(snapshotDataBuffer);
bool isStatic = canBeStatic && ghostSnapshotData.WasLatestTickZeroChange(snapshotDataBuffer, changeMaskUints);
#if UNITY_EDITOR || DEVELOPMENT_BUILD
if (latestTick != 0 && !isStatic)
{
if (minMaxSnapshotTick[minMaxOffset] == 0 || SequenceHelpers.IsNewer(minMaxSnapshotTick[minMaxOffset], latestTick))
{
minMaxSnapshotTick[minMaxOffset] = latestTick;
}
if (minMaxSnapshotTick[minMaxOffset + 1] == 0 || SequenceHelpers.IsNewer(latestTick, minMaxSnapshotTick[minMaxOffset + 1]))
{
minMaxSnapshotTick[minMaxOffset + 1] = latestTick;
}
}
#endif
if (ghostSnapshotData.GetDataAtTick(targetTick, typeData.PredictionOwnerOffset, targetTickFraction, snapshotDataBuffer, out var data, MaxExtrapolationTicks))
{
if (predicted)
{
// TODO: is this the right way to handle this?
data.InterpolationFactor = 0;
var snapshotTick = *(uint *)data.SnapshotBefore;
var predictedData = predictedGhostComponentArray[ent];
// We want to contiue prediction from the last full tick we predicted last time
var predictionStartTick = predictionStateBackupTick;
// If there is no history, try to use the tick where we left off last time, will only be a valid tick if we ended with a full prediction tick as opposed to a fractional one
if (predictionStartTick == 0)
{
predictionStartTick = lastPredictedTick;
}
// If we do not have a backup or we got more data since last time we run from the tick we have snapshot data for
if (predictionStartTick == 0 || predictedData.AppliedTick != snapshotTick)
{
predictionStartTick = snapshotTick;
}
// If we have newer or equally new data in the
else if (!SequenceHelpers.IsNewer(predictionStartTick, snapshotTick))
{
predictionStartTick = snapshotTick;
}
// If we want to continue prediction, and this is not the currently applied prediction state we must restore the state from the backup
if (predictionStartTick != snapshotTick && predictionStartTick != lastPredictedTick)
{
// If we cannot restore the backup and continue prediction we roll back and resimulate
if (!RestorePredictionBackup(chunk, ent, typeData, ghostChunkComponentTypesPtr, ghostChunkComponentTypesLength))
{
predictionStartTick = snapshotTick;
}
}
if (minPredictedTick[ThreadIndex] == 0 || SequenceHelpers.IsNewer(minPredictedTick[ThreadIndex], predictionStartTick))
{
minPredictedTick[ThreadIndex] = predictionStartTick;
}
if (predictionStartTick != snapshotTick)
{
if (nextRange.y != 0)
{
entityRange.Add(nextRange);
}
nextRange = default;
}
else
{
predictedData.AppliedTick = snapshotTick;
if (nextRange.y == 0)
{
nextRange.x = ent;
}
nextRange.y = ent + 1;
}
predictedData.PredictionStartTick = predictionStartTick;
predictedGhostComponentArray[ent] = predictedData;
}
else
{
// If this snapshot is static, and the data for the latest tick was applied during last interpolation update, we can just skip copying data
if (isStatic && !SequenceHelpers.IsNewer(latestTick, lastInterpolatedTick))
{
if (nextRange.y != 0)
{
entityRange.Add(nextRange);
}
nextRange = default;
}
else
{
if (nextRange.y == 0)
{
nextRange.x = ent;
}
nextRange.y = ent + 1;
}
}
dataAtTick[ent] = data;
}
public unsafe void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex, DynamicComponentTypeHandle *ghostChunkComponentTypesPtr, int ghostChunkComponentTypesLength)
{
var prefabList = ghostPrefabBufferFromEntity[prefabEntity];
var entityList = chunk.GetNativeArray(entityType);
var snapshotDataList = chunk.GetNativeArray(snapshotDataType);
var snapshotDataBufferList = chunk.GetBufferAccessor(snapshotDataBufferType);
var ghostTypeComponent = ghostTypeFromEntity[entityList[0]];
int ghostType;
for (ghostType = 0; ghostType < prefabList.Length; ++ghostType)
{
if (ghostTypeFromEntity[prefabList[ghostType].Value] == ghostTypeComponent)
{
break;
}
}
if (ghostType >= prefabList.Length)
{
throw new System.InvalidOperationException("Could not find ghost type in the collection");
}
var spawnList = spawnListFromEntity[spawnListEntity];
var typeData = GhostTypeCollection[ghostType];
var snapshotSize = typeData.SnapshotSize;
int changeMaskUints = GhostCollectionSystem.ChangeMaskArraySizeInUInts(typeData.ChangeMaskBits);
var snapshotBaseOffset = GhostCollectionSystem.SnapshotSizeAligned(4 + changeMaskUints * 4);
var serializerState = new GhostSerializerState
{
GhostFromEntity = ghostFromEntity
};
for (int i = 0; i < entityList.Length; ++i)
{
var entity = entityList[i];
var ghostComponent = ghostFromEntity[entity];
ghostComponent.ghostType = ghostType;
ghostFromEntity[entity] = ghostComponent;
// Set initial snapshot data
// Get the buffers, fill in snapshot size etc
snapshotDataList[i] = new SnapshotData {
SnapshotSize = snapshotSize, LatestIndex = 0
};
var snapshotDataBuffer = snapshotDataBufferList[i];
snapshotDataBuffer.ResizeUninitialized(snapshotSize * GhostSystemConstants.SnapshotHistorySize);
var snapshotPtr = (byte *)snapshotDataBuffer.GetUnsafePtr();
UnsafeUtility.MemClear(snapshotPtr, snapshotSize * GhostSystemConstants.SnapshotHistorySize);
*(uint *)snapshotPtr = spawnTick;
var snapshotOffset = snapshotBaseOffset;
int numBaseComponents = typeData.NumComponents - typeData.NumChildComponents;
for (int comp = 0; comp < numBaseComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new InvalidOperationException("Component index out of range");
}
#endif
if (chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
var compSize = GhostComponentCollection[compIdx].ComponentSize;
var compData = (byte *)chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafeReadOnlyPtr();
compData += i * compSize;
GhostComponentCollection[compIdx].CopyToSnapshot.Ptr.Invoke((IntPtr)UnsafeUtility.AddressOf(ref serializerState), (IntPtr)snapshotPtr, snapshotOffset, snapshotSize, (IntPtr)compData, compSize, 1);
}
else
{
var componentSnapshotSize = GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
UnsafeUtility.MemClear(snapshotPtr + snapshotOffset, componentSnapshotSize);
}
snapshotOffset += GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
}
if (typeData.NumChildComponents > 0)
{
var linkedEntityGroupAccessor = chunk.GetBufferAccessor(linkedEntityGroupType);
for (int comp = numBaseComponents; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new InvalidOperationException("Component index out of range");
}
#endif
var compSize = GhostComponentCollection[compIdx].ComponentSize;
var linkedEntityGroup = linkedEntityGroupAccessor[i];
var childEnt = linkedEntityGroup[GhostComponentIndex[typeData.FirstComponent + comp].EntityIndex].Value;
//We can skip here, becase the memory buffer offset is computed using the start-end entity indices
if (!childEntityLookup.TryGetValue(childEnt, out var childChunk) || !childChunk.chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
var componentSnapshotSize = GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
UnsafeUtility.MemClear(snapshotPtr + snapshotOffset, componentSnapshotSize);
}
else
{
var compData = (byte *)childChunk.chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafeReadOnlyPtr();
compData += childChunk.index * compSize;
GhostComponentCollection[compIdx].CopyToSnapshot.Ptr.Invoke((IntPtr)UnsafeUtility.AddressOf(ref serializerState), (IntPtr)snapshotPtr, snapshotOffset, snapshotSize, (IntPtr)compData, compSize, 1);
}
snapshotOffset += GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
}
}
// Remove request component
commandBuffer.RemoveComponent <PredictedGhostSpawnRequestComponent>(entity);
// Add to list of predictive spawn component - maybe use a singleton for this so spawn systems can just access it too
spawnList.Add(new PredictedGhostSpawn {
entity = entity, ghostType = ghostType, spawnTick = spawnTick
});
}
}
public unsafe void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex, DynamicComponentTypeHandle *ghostChunkComponentTypesPtr, int ghostChunkComponentTypesLength)
{
var entityList = chunk.GetNativeArray(entityType);
var snapshotDataList = chunk.GetNativeArray(snapshotDataType);
var snapshotDataBufferList = chunk.GetBufferAccessor(snapshotDataBufferType);
var snapshotDynamicDataBufferList = chunk.GetBufferAccessor(snapshotDynamicDataBufferType);
var GhostCollection = GhostCollectionFromEntity[GhostCollectionSingleton];
var GhostTypeCollection = GhostTypeCollectionFromEntity[GhostCollectionSingleton];
var ghostTypeComponent = ghostTypeFromEntity[entityList[0]];
int ghostType;
for (ghostType = 0; ghostType < GhostCollection.Length; ++ghostType)
{
if (GhostCollection[ghostType].GhostType == ghostTypeComponent)
{
break;
}
}
if (ghostType >= GhostCollection.Length)
{
throw new InvalidOperationException("Could not find ghost type in the collection");
}
if (ghostType >= GhostTypeCollection.Length)
{
return; // serialization data has not been loaded yet
}
var GhostComponentCollection = GhostComponentCollectionFromEntity[GhostCollectionSingleton];
var GhostComponentIndex = GhostComponentIndexFromEntity[GhostCollectionSingleton];
var spawnList = spawnListFromEntity[spawnListEntity];
var typeData = GhostTypeCollection[ghostType];
var snapshotSize = typeData.SnapshotSize;
int changeMaskUints = GhostCollectionSystem.ChangeMaskArraySizeInUInts(typeData.ChangeMaskBits);
var snapshotBaseOffset = GhostCollectionSystem.SnapshotSizeAligned(4 + changeMaskUints * 4);
var serializerState = new GhostSerializerState
{
GhostFromEntity = ghostFromEntity
};
var buffersToSerialize = new NativeList <BufferDataEntry>(Allocator.Temp);
for (int i = 0; i < entityList.Length; ++i)
{
var entity = entityList[i];
var ghostComponent = ghostFromEntity[entity];
ghostComponent.ghostType = ghostType;
ghostFromEntity[entity] = ghostComponent;
// Set initial snapshot data
// Get the buffers, fill in snapshot size etc
snapshotDataList[i] = new SnapshotData {
SnapshotSize = snapshotSize, LatestIndex = 0
};
var snapshotDataBuffer = snapshotDataBufferList[i];
snapshotDataBuffer.ResizeUninitialized(snapshotSize * GhostSystemConstants.SnapshotHistorySize);
var snapshotPtr = (byte *)snapshotDataBuffer.GetUnsafePtr();
UnsafeUtility.MemClear(snapshotPtr, snapshotSize * GhostSystemConstants.SnapshotHistorySize);
*(uint *)snapshotPtr = spawnTick;
var snapshotOffset = snapshotBaseOffset;
var dynamicSnapshotDataOffset = 0;
//Loop through all the serializable components and copy their data into the snapshot.
//For buffers, we collect what we need to serialize and then we copy the content in a second
//step. This is necessary because we need to resize the dynamic snapshot buffer
int numBaseComponents = typeData.NumComponents - typeData.NumChildComponents;
for (int comp = 0; comp < numBaseComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
int serializerIdx = GhostComponentIndex[typeData.FirstComponent + comp].SerializerIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new InvalidOperationException("Component index out of range");
}
#endif
var componentSnapshotSize = GhostComponentCollection[serializerIdx].ComponentType.IsBuffer
? GhostCollectionSystem.SnapshotSizeAligned(GhostSystemConstants.DynamicBufferComponentSnapshotSize)
: GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[serializerIdx].SnapshotSize);
var compSize = GhostComponentCollection[serializerIdx].ComponentSize;
if (!chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
UnsafeUtility.MemClear(snapshotPtr + snapshotOffset, componentSnapshotSize);
}
else if (!GhostComponentCollection[serializerIdx].ComponentType.IsBuffer)
{
var compData = (byte *)chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafeReadOnlyPtr();
GhostComponentCollection[serializerIdx].CopyToSnapshot.Ptr.Invoke((IntPtr)UnsafeUtility.AddressOf(ref serializerState), (IntPtr)snapshotPtr, snapshotOffset, snapshotSize, (IntPtr)(compData + i * compSize), compSize, 1);
}
else
{
// Collect the buffer data to serialize by storing pointers, offset and size.
var bufData = chunk.GetUntypedBufferAccessor(ref ghostChunkComponentTypesPtr[compIdx]);
var bufferPointer = (IntPtr)bufData.GetUnsafeReadOnlyPtrAndLength(i, out var bufferLen);
var snapshotData = (uint *)(snapshotPtr + snapshotOffset);
snapshotData[0] = (uint)bufferLen;
snapshotData[1] = (uint)dynamicSnapshotDataOffset;
buffersToSerialize.Add(new BufferDataEntry
{
offset = dynamicSnapshotDataOffset,
len = bufferLen,
serializerIdx = serializerIdx,
bufferData = bufferPointer
});
var maskSize = SnapshotDynamicBuffersHelper.GetDynamicDataChangeMaskSize(GhostComponentCollection[serializerIdx].ChangeMaskBits, bufferLen);
dynamicSnapshotDataOffset += GhostCollectionSystem.SnapshotSizeAligned(maskSize + GhostComponentCollection[serializerIdx].ComponentSize * bufferLen);
}
snapshotOffset += componentSnapshotSize;
}
if (typeData.NumChildComponents > 0)
{
var linkedEntityGroupAccessor = chunk.GetBufferAccessor(linkedEntityGroupType);
for (int comp = numBaseComponents; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
int serializerIdx = GhostComponentIndex[typeData.FirstComponent + comp].SerializerIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
var compSize = GhostComponentCollection[serializerIdx].ComponentSize;
var linkedEntityGroup = linkedEntityGroupAccessor[i];
var childEnt = linkedEntityGroup[GhostComponentIndex[typeData.FirstComponent + comp].EntityIndex].Value;
var componentSnapshotSize = GhostComponentCollection[serializerIdx].ComponentType.IsBuffer
? GhostCollectionSystem.SnapshotSizeAligned(GhostSystemConstants.DynamicBufferComponentSnapshotSize)
: GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[serializerIdx].SnapshotSize);
//We can skip here, becase the memory buffer offset is computed using the start-end entity indices
if (!childEntityLookup.TryGetValue(childEnt, out var childChunk) || !childChunk.chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
UnsafeUtility.MemClear(snapshotPtr + snapshotOffset, componentSnapshotSize);
}
else if (!GhostComponentCollection[serializerIdx].ComponentType.IsBuffer)
{
var compData = (byte *)childChunk.chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafeReadOnlyPtr();
compData += childChunk.index * compSize;
GhostComponentCollection[serializerIdx].CopyToSnapshot.Ptr.Invoke((System.IntPtr)UnsafeUtility.AddressOf(ref serializerState),
(System.IntPtr)snapshotPtr, snapshotOffset, snapshotSize, (System.IntPtr)compData, compSize, 1);
}
else
{
// Collect the buffer data to serialize by storing pointers, offset and size.
var bufData = childChunk.chunk.GetUntypedBufferAccessor(ref ghostChunkComponentTypesPtr[compIdx]);
var bufferPointer = (IntPtr)bufData.GetUnsafeReadOnlyPtrAndLength(childChunk.index, out var bufferLen);
var snapshotData = (uint *)(snapshotPtr + snapshotOffset);
snapshotData[0] = (uint)bufferLen;
snapshotData[1] = (uint)dynamicSnapshotDataOffset;
buffersToSerialize.Add(new BufferDataEntry
{
offset = dynamicSnapshotDataOffset,
len = bufferLen,
serializerIdx = serializerIdx,
bufferData = bufferPointer
});
var maskSize = SnapshotDynamicBuffersHelper.GetDynamicDataChangeMaskSize(GhostComponentCollection[serializerIdx].ChangeMaskBits, bufferLen);
dynamicSnapshotDataOffset += GhostCollectionSystem.SnapshotSizeAligned(maskSize + GhostComponentCollection[serializerIdx].ComponentSize * bufferLen);
}
snapshotOffset += componentSnapshotSize;
}
}
//Second step (necessary only for buffers): resize the dynamicdata snapshot buffer and copy the buffer contents
if (GhostTypeCollection[ghostType].NumBuffers > 0 && buffersToSerialize.Length > 0)
{
var dynamicDataCapacity = SnapshotDynamicBuffersHelper.CalculateBufferCapacity((uint)dynamicSnapshotDataOffset, out _);
var headerSize = SnapshotDynamicBuffersHelper.GetHeaderSize();
var snapshotDynamicDataBuffer = snapshotDynamicDataBufferList[i];
snapshotDynamicDataBuffer.ResizeUninitialized((int)dynamicDataCapacity);
var snapshotDynamicDataBufferPtr = (byte *)snapshotDynamicDataBuffer.GetUnsafePtr() + headerSize;
((uint *)snapshotDynamicDataBuffer.GetUnsafePtr())[0] = (uint)dynamicSnapshotDataOffset;
for (int buf = 0; buf < buffersToSerialize.Length; ++buf)
{
var entry = buffersToSerialize[buf];
var dynamicDataSize = GhostComponentCollection[entry.serializerIdx].SnapshotSize;
var compSize = GhostComponentCollection[entry.serializerIdx].ComponentSize;
var maskSize = SnapshotDynamicBuffersHelper.GetDynamicDataChangeMaskSize(GhostComponentCollection[entry.serializerIdx].ChangeMaskBits, entry.len);
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if ((maskSize + entry.offset + dynamicDataSize * entry.len) > dynamicDataCapacity)
{
throw new System.InvalidOperationException("Overflow writing data to dynamic snapshot memory buffer");
}
#endif
GhostComponentCollection[entry.serializerIdx].CopyToSnapshot.Ptr.Invoke((System.IntPtr)UnsafeUtility.AddressOf(ref serializerState),
(System.IntPtr)snapshotDynamicDataBufferPtr + maskSize, entry.offset, dynamicDataSize,
entry.bufferData, compSize, entry.len);
}
}
// Remove request component
commandBuffer.RemoveComponent <PredictedGhostSpawnRequestComponent>(entity);
// Add to list of predictive spawn component - maybe use a singleton for this so spawn systems can just access it too
spawnList.Add(new PredictedGhostSpawn {
entity = entity, ghostType = ghostType, spawnTick = spawnTick
});
}
}
public void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex, DynamicComponentTypeHandle *ghostChunkComponentTypesPtr, int ghostChunkComponentTypesLength)
{
bool predicted = chunk.Has(predictedGhostComponentType);
uint targetTick = predicted ? predictedTargetTick : interpolatedTargetTick;
float targetTickFraction = predicted ? 1.0f : interpolatedTargetTickFraction;
var deserializerState = new GhostDeserializerState
{
GhostMap = GhostMap
};
var ghostComponents = chunk.GetNativeArray(ghostType);
int ghostTypeId = ghostComponents[0].ghostType;
var typeData = GhostTypeCollection[ghostTypeId];
var ghostSnapshotDataArray = chunk.GetNativeArray(ghostSnapshotDataType);
var ghostSnapshotDataBufferArray = chunk.GetBufferAccessor(ghostSnapshotDataBufferType);
int changeMaskUints = GhostCollectionSystem.ChangeMaskArraySizeInUInts(typeData.ChangeMaskBits);
int snapshotOffset = GhostCollectionSystem.SnapshotSizeAligned(4 + changeMaskUints * 4);
int snapshotDataAtTickSize = UnsafeUtility.SizeOf <SnapshotData.DataAtTick>();
#if UNITY_EDITOR || DEVELOPMENT_BUILD
var minMaxOffset = ThreadIndex * (JobsUtility.CacheLineSize / 4);
#endif
var dataAtTick = new NativeArray <SnapshotData.DataAtTick>(ghostComponents.Length, Allocator.Temp);
var entityRange = new NativeList <int2>(ghostComponents.Length, Allocator.Temp);
int2 nextRange = default;
var predictedGhostComponentArray = chunk.GetNativeArray(predictedGhostComponentType);
bool canBeStatic = typeData.StaticOptimization;
// Find the ranges of entities which have data to apply, store the data to apply in an array while doing so
for (int ent = 0; ent < ghostComponents.Length; ++ent)
{
var snapshotDataBuffer = ghostSnapshotDataBufferArray[ent];
var ghostSnapshotData = ghostSnapshotDataArray[ent];
var latestTick = ghostSnapshotData.GetLatestTick(snapshotDataBuffer);
bool isStatic = canBeStatic && ghostSnapshotData.WasLatestTickZeroChange(snapshotDataBuffer, changeMaskUints);
#if UNITY_EDITOR || DEVELOPMENT_BUILD
if (latestTick != 0 && !isStatic)
{
if (minMaxSnapshotTick[minMaxOffset] == 0 || SequenceHelpers.IsNewer(minMaxSnapshotTick[minMaxOffset], latestTick))
{
minMaxSnapshotTick[minMaxOffset] = latestTick;
}
if (minMaxSnapshotTick[minMaxOffset + 1] == 0 || SequenceHelpers.IsNewer(latestTick, minMaxSnapshotTick[minMaxOffset + 1]))
{
minMaxSnapshotTick[minMaxOffset + 1] = latestTick;
}
}
#endif
if (ghostSnapshotData.GetDataAtTick(targetTick, targetTickFraction, snapshotDataBuffer, out var data))
{
if (predicted)
{
// TODO: is this the right way to handle this?
data.InterpolationFactor = 0;
var snapshotTick = *(uint *)data.SnapshotBefore;
var predictedData = predictedGhostComponentArray[ent];
// We want to contiue prediction from the last full tick we predicted last time
var predictionStartTick = predictionStateBackupTick;
// If there is no history, try to use the tick where we left off last time, will only be a valid tick if we ended with a full prediction tick as opposed to a fractional one
if (predictionStartTick == 0)
{
predictionStartTick = lastPredictedTick;
}
// If we do not have a backup or we got more data since last time we run from the tick we have snapshot data for
if (predictionStartTick == 0 || predictedData.AppliedTick != snapshotTick)
{
predictionStartTick = snapshotTick;
}
// If we have newer or equally new data in the
else if (!SequenceHelpers.IsNewer(predictionStartTick, snapshotTick))
{
predictionStartTick = snapshotTick;
}
// If we want to continue prediction, and this is not the currently applied prediction state we must restore the state from the backup
if (predictionStartTick != snapshotTick && predictionStartTick != lastPredictedTick)
{
// If we cannot restore the backup and continue prediction we roll back and resimulate
if (!RestorePredictionBackup(chunk, ent, typeData, ghostChunkComponentTypesPtr, ghostChunkComponentTypesLength))
{
predictionStartTick = snapshotTick;
}
}
if (minPredictedTick[ThreadIndex] == 0 || SequenceHelpers.IsNewer(minPredictedTick[ThreadIndex], predictionStartTick))
{
minPredictedTick[ThreadIndex] = predictionStartTick;
}
if (predictionStartTick != snapshotTick)
{
if (nextRange.y != 0)
{
entityRange.Add(nextRange);
}
nextRange = default;
}
else
{
predictedData.AppliedTick = snapshotTick;
if (nextRange.y == 0)
{
nextRange.x = ent;
}
nextRange.y = ent + 1;
}
predictedData.PredictionStartTick = predictionStartTick;
predictedGhostComponentArray[ent] = predictedData;
}
else
{
// If this snapshot is static, and the data for the latest tick was applied during last interpolation update, we can just skip copying data
if (isStatic && !SequenceHelpers.IsNewer(latestTick, lastInterpolatedTick))
{
if (nextRange.y != 0)
{
entityRange.Add(nextRange);
}
nextRange = default;
}
else
{
if (nextRange.y == 0)
{
nextRange.x = ent;
}
nextRange.y = ent + 1;
}
}
dataAtTick[ent] = data;
}
else if (nextRange.y != 0)
{
entityRange.Add(nextRange);
nextRange = default;
if (predicted)
{
var predictionStartTick = predictionStateBackupTick;
if (predictionStateBackupTick != lastPredictedTick)
{
// Try to back up the thing
if (!RestorePredictionBackup(chunk, ent, typeData, ghostChunkComponentTypesPtr, ghostChunkComponentTypesLength))
{
predictionStartTick = 0;
}
}
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (predictionStartTick == 0)
{
throw new System.InvalidOperationException("Trying to predict a ghost without having a state to roll back to");
}
#endif
}
}
}
if (nextRange.y != 0)
{
entityRange.Add(nextRange);
}
var requiredSendMask = predicted ? GhostComponentSerializer.SendMask.Predicted : GhostComponentSerializer.SendMask.Interpolated;
int numBaseComponents = typeData.NumComponents - typeData.NumChildComponents;
for (int comp = 0; comp < numBaseComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
if (chunk.Has(ghostChunkComponentTypesPtr[compIdx]) &&
(GhostComponentCollection[compIdx].SendMask & requiredSendMask) != 0)
{
var compSize = GhostComponentCollection[compIdx].ComponentSize;
var compData = (byte *)chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafePtr();
for (var rangeIdx = 0; rangeIdx < entityRange.Length; ++rangeIdx)
{
var range = entityRange[rangeIdx];
var snapshotData = (byte *)dataAtTick.GetUnsafeReadOnlyPtr();
snapshotData += snapshotDataAtTickSize * range.x;
GhostComponentCollection[compIdx].CopyFromSnapshot.Ptr.Invoke((System.IntPtr)UnsafeUtility.AddressOf(ref deserializerState), (System.IntPtr)snapshotData, snapshotOffset, snapshotDataAtTickSize, (System.IntPtr)(compData + range.x * compSize), compSize, range.y - range.x);
}
}
snapshotOffset += GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
}
if (typeData.NumChildComponents > 0)
{
var linkedEntityGroupAccessor = chunk.GetBufferAccessor(linkedEntityGroupType);
for (int comp = numBaseComponents; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
if ((GhostComponentCollection[compIdx].SendMask & requiredSendMask) != 0)
{
var compSize = GhostComponentCollection[compIdx].ComponentSize;
for (var rangeIdx = 0; rangeIdx < entityRange.Length; ++rangeIdx)
{
var range = entityRange[rangeIdx];
for (int ent = range.x; ent < range.y; ++ent)
{
var linkedEntityGroup = linkedEntityGroupAccessor[ent];
if (!childEntityLookup.TryGetValue(linkedEntityGroup[GhostComponentIndex[typeData.FirstComponent + comp].EntityIndex].Value, out var childChunk))
{
continue;
}
if (!childChunk.chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
continue;
}
var compData = (byte *)childChunk.chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafePtr();
var snapshotData = (byte *)dataAtTick.GetUnsafeReadOnlyPtr();
snapshotData += snapshotDataAtTickSize * ent;
GhostComponentCollection[compIdx].CopyFromSnapshot.Ptr.Invoke((System.IntPtr)UnsafeUtility.AddressOf(ref deserializerState), (System.IntPtr)snapshotData, snapshotOffset, snapshotDataAtTickSize, (System.IntPtr)(compData + childChunk.index * compSize), compSize, 1);
}
}
}
snapshotOffset += GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
}
}
}
private bool DeserializeEntity(uint serverTick, ref DataStreamReader dataStream, ref DeserializeData data)
{
if (data.targetArchLen == 0)
{
#if UNITY_EDITOR || DEVELOPMENT_BUILD
data.curPos = dataStream.GetBitsRead();
if (data.statCount > 0)
{
int statType = (int)data.targetArch;
netStats[statType * 3 + 4] = netStats[statType * 3 + 4] + data.statCount;
netStats[statType * 3 + 5] = netStats[statType * 3 + 5] + (uint)(data.curPos - data.startPos);
netStats[statType * 3 + 6] = netStats[statType * 3 + 6] + data.uncompressedCount;
}
data.startPos = data.curPos;
data.statCount = 0;
data.uncompressedCount = 0;
#endif
data.targetArch = dataStream.ReadPackedUInt(compressionModel);
data.targetArchLen = dataStream.ReadPackedUInt(compressionModel);
}
--data.targetArchLen;
if (data.baselineLen == 0)
{
data.baselineTick = serverTick - dataStream.ReadPackedUInt(compressionModel);
data.baselineTick2 = serverTick - dataStream.ReadPackedUInt(compressionModel);
data.baselineTick3 = serverTick - dataStream.ReadPackedUInt(compressionModel);
data.baselineLen = dataStream.ReadPackedUInt(compressionModel);
if (data.baselineTick3 != serverTick &&
(data.baselineTick3 == data.baselineTick2 || data.baselineTick2 == data.baselineTick))
{
#if ENABLE_UNITY_COLLECTIONS_CHECKS
UnityEngine.Debug.LogError("Received invalid snapshot baseline from server");
#endif
return(false);
}
}
--data.baselineLen;
int ghostId = (int)dataStream.ReadPackedUInt(compressionModel);
uint serverSpawnTick = 0;
if (data.baselineTick == serverTick)
{
serverSpawnTick = dataStream.ReadPackedUInt(compressionModel);
}
var typeData = GhostTypeCollection[(int)data.targetArch];
int changeMaskUints = GhostCollectionSystem.ChangeMaskArraySizeInUInts(typeData.ChangeMaskBits);
int snapshotOffset;
int snapshotSize = typeData.SnapshotSize;
byte *baselineData = (byte *)UnsafeUtility.Malloc(snapshotSize, 16, Allocator.Temp);
UnsafeUtility.MemClear(baselineData, snapshotSize);
Entity gent;
DynamicBuffer <SnapshotDataBuffer> snapshotDataBuffer;
SnapshotData snapshotDataComponent;
byte * snapshotData;
bool existingGhost = ghostEntityMap.TryGetValue(ghostId, out gent);
if (existingGhost && snapshotDataBufferFromEntity.HasComponent(gent) && ghostFromEntity[gent].ghostType == data.targetArch)
{
snapshotDataBuffer = snapshotDataBufferFromEntity[gent];
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (snapshotDataBuffer.Length != snapshotSize * GhostSystemConstants.SnapshotHistorySize)
{
throw new InvalidOperationException($"Invalid snapshot buffer size");
}
#endif
snapshotData = (byte *)snapshotDataBuffer.GetUnsafePtr();
snapshotDataComponent = snapshotDataFromEntity[gent];
snapshotDataComponent.LatestIndex = (snapshotDataComponent.LatestIndex + 1) % GhostSystemConstants.SnapshotHistorySize;
snapshotDataFromEntity[gent] = snapshotDataComponent;
if (data.baselineTick != serverTick)
{
for (int bi = 0; bi < snapshotDataBuffer.Length; bi += snapshotSize)
{
if (*(uint *)(snapshotData + bi) == data.baselineTick)
{
UnsafeUtility.MemCpy(baselineData, snapshotData + bi, snapshotSize);
break;
}
}
if (*(uint *)baselineData == 0)
{
return(false); // Ack desync detected
}
}
if (data.baselineTick3 != serverTick)
{
byte *baselineData2 = null;
byte *baselineData3 = null;
for (int bi = 0; bi < snapshotDataBuffer.Length; bi += snapshotSize)
{
if (*(uint *)(snapshotData + bi) == data.baselineTick2)
{
baselineData2 = snapshotData + bi;
}
if (*(uint *)(snapshotData + bi) == data.baselineTick3)
{
baselineData3 = snapshotData + bi;
}
}
if (baselineData2 == null || baselineData3 == null)
{
return(false); // Ack desync detected
}
snapshotOffset = GhostCollectionSystem.SnapshotSizeAligned(4 + changeMaskUints * 4);
var predictor = new GhostDeltaPredictor(serverTick, data.baselineTick, data.baselineTick2, data.baselineTick3);
for (int comp = 0; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (snapshotOffset + GhostComponentCollection[compIdx].SnapshotSize > snapshotSize)
{
throw new InvalidOperationException("Snapshot buffer overflow during predict");
}
#endif
GhostComponentCollection[compIdx].PredictDelta.Ptr.Invoke((IntPtr)(baselineData + snapshotOffset), (IntPtr)(baselineData2 + snapshotOffset), (IntPtr)(baselineData3 + snapshotOffset), ref predictor);
snapshotOffset += GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
}
}
}
else
{
if (existingGhost)
{
// The ghost entity map is out of date, clean it up
ghostEntityMap.Remove(ghostId);
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (ghostFromEntity.HasComponent(gent) && ghostFromEntity[gent].ghostType != data.targetArch)
{
UnityEngine.Debug.LogError("Received a ghost with an invalid ghost type");
}
UnityEngine.Debug.LogError("Found a ghost in the ghost map which does not have an entity connected to it. This can happen if you delete ghost entities on the client.");
#endif
}
if (data.baselineTick != serverTick)
{
// If the server specifies a baseline for a ghost we do not have that is an error
return(false);
}
++data.newGhosts;
var ghostSpawnBuffer = ghostSpawnBufferFromEntity[ghostSpawnEntity];
snapshotDataBuffer = snapshotDataBufferFromEntity[ghostSpawnEntity];
var snapshotDataBufferOffset = snapshotDataBuffer.Length;
ghostSpawnBuffer.Add(new GhostSpawnBuffer {
GhostType = (int)data.targetArch, GhostID = ghostId, DataOffset = snapshotDataBufferOffset, ClientSpawnTick = serverTick, ServerSpawnTick = serverSpawnTick
});
snapshotDataBuffer.ResizeUninitialized(snapshotDataBufferOffset + snapshotSize);
snapshotData = (byte *)snapshotDataBuffer.GetUnsafePtr() + snapshotDataBufferOffset;
UnsafeUtility.MemClear(snapshotData, snapshotSize);
snapshotDataComponent = new SnapshotData {
SnapshotSize = snapshotSize, LatestIndex = 0
};
}
int maskOffset = 0;
snapshotOffset = GhostCollectionSystem.SnapshotSizeAligned(4 + changeMaskUints * 4);
snapshotData += snapshotSize * snapshotDataComponent.LatestIndex;
*(uint *)(snapshotData) = serverTick;
uint *changeMask = (uint *)(snapshotData + 4);
for (int cm = 0; cm < changeMaskUints; ++cm)
{
changeMask[cm] = dataStream.ReadPackedUIntDelta(((uint *)(baselineData + 4))[cm], compressionModel);
}
for (int comp = 0; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[typeData.FirstComponent + comp].ComponentIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (maskOffset + GhostComponentCollection[compIdx].ChangeMaskBits > typeData.ChangeMaskBits || snapshotOffset + GhostComponentCollection[compIdx].SnapshotSize > snapshotSize)
{
throw new InvalidOperationException("Snapshot buffer overflow during deserialize");
}
#endif
GhostComponentCollection[compIdx].Deserialize.Ptr.Invoke((IntPtr)(snapshotData + snapshotOffset), (IntPtr)(baselineData + snapshotOffset), ref dataStream, ref compressionModel, (IntPtr)changeMask, maskOffset);
snapshotOffset += GhostCollectionSystem.SnapshotSizeAligned(GhostComponentCollection[compIdx].SnapshotSize);
maskOffset += GhostComponentCollection[compIdx].ChangeMaskBits;
}
#if UNITY_EDITOR || DEVELOPMENT_BUILD
++data.statCount;
if (data.baselineTick == serverTick)
{
++data.uncompressedCount;
}
#endif
if (typeData.IsGhostGroup != 0)
{
var groupLen = dataStream.ReadPackedUInt(compressionModel);
for (var i = 0; i < groupLen; ++i)
{
if (!DeserializeEntity(serverTick, ref dataStream, ref data))
{
return(false);
}
}
}
return(true);
}
public void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex, DynamicComponentTypeHandle *ghostChunkComponentTypesPtr, int ghostChunkComponentTypesLength)
{
var GhostTypeCollection = GhostTypeCollectionFromEntity[GhostCollectionSingleton];
var GhostComponentIndex = GhostComponentIndexFromEntity[GhostCollectionSingleton];
var GhostComponentCollection = GhostComponentCollectionFromEntity[GhostCollectionSingleton];
var ghostComponents = chunk.GetNativeArray(ghostType);
int ghostTypeId = ghostComponents.GetFirstGhostTypeId();
if (ghostTypeId < 0)
{
return;
}
var typeData = GhostTypeCollection[ghostTypeId];
var singleEntitySize = UnsafeUtility.SizeOf <Entity>();
int baseOffset = typeData.FirstComponent;
if (!predictionState.TryGetValue(chunk, out var state) ||
(*(PredictionBackupState *)state).ghostType != ghostTypeId ||
(*(PredictionBackupState *)state).entityCapacity != chunk.Capacity)
{
int dataSize = 0;
// Sum up the size of all components rounded up
for (int comp = 0; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[baseOffset + comp].ComponentIndex;
int serializerIdx = GhostComponentIndex[baseOffset + comp].SerializerIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
if ((GhostComponentIndex[baseOffset + comp].SendMask & requiredSendMask) == 0)
{
continue;
}
//for buffers we store a a pair of uint:
// uint length: the num of elements
// uint backupDataOffset: the start position in the backup buffer
if (!GhostComponentCollection[serializerIdx].ComponentType.IsBuffer)
{
dataSize += PredictionBackupState.GetDataSize(
GhostComponentCollection[serializerIdx].ComponentSize, chunk.Capacity);
}
else
{
dataSize += PredictionBackupState.GetDataSize(GhostSystemConstants.DynamicBufferComponentSnapshotSize, chunk.Capacity);
}
}
//compute the space necessary to store the dynamic buffers data for the chunk
int buffersDataCapacity = 0;
if (typeData.NumBuffers > 0)
{
buffersDataCapacity = GetChunkBuffersDataSize(typeData, chunk, ghostChunkComponentTypesPtr, ghostChunkComponentTypesLength, GhostComponentIndex, GhostComponentCollection);
}
// Chunk does not exist in the history, or has changed ghost type in which case we need to create a new one
state = PredictionBackupState.AllocNew(ghostTypeId, dataSize, chunk.Capacity, buffersDataCapacity);
newPredictionState.Enqueue(new PredictionStateEntry {
chunk = chunk, data = state
});
}
else
{
stillUsedPredictionState.TryAdd(chunk, 1);
if (typeData.NumBuffers > 0)
{
//resize the backup state to fit the dynamic buffers contents
var buffersDataCapacity = GetChunkBuffersDataSize(typeData, chunk, ghostChunkComponentTypesPtr, ghostChunkComponentTypesLength, GhostComponentIndex, GhostComponentCollection);
int bufferBackupDataCapacity = PredictionBackupState.GetBufferDataCapacity(state);
if (bufferBackupDataCapacity < buffersDataCapacity)
{
var dataSize = ((PredictionBackupState *)state)->dataSize;
var newState = PredictionBackupState.AllocNew(ghostTypeId, dataSize, chunk.Capacity, buffersDataCapacity);
UnsafeUtility.Free((void *)state, Allocator.Persistent);
state = newState;
updatedPredictionState.Enqueue(new PredictionStateEntry {
chunk = chunk, data = newState
});
}
}
}
Entity *entities = PredictionBackupState.GetEntities(state);
var srcEntities = chunk.GetNativeArray(entityType).GetUnsafeReadOnlyPtr();
UnsafeUtility.MemCpy(entities, srcEntities, chunk.Count * singleEntitySize);
if (chunk.Count < chunk.Capacity)
{
UnsafeUtility.MemClear(entities + chunk.Count, (chunk.Capacity - chunk.Count) * singleEntitySize);
}
byte *dataPtr = PredictionBackupState.GetData(state);
byte *bufferBackupDataPtr = PredictionBackupState.GetBufferDataPtr(state);
int numBaseComponents = typeData.NumComponents - typeData.NumChildComponents;
int bufferBackupDataOffset = 0;
for (int comp = 0; comp < numBaseComponents; ++comp)
{
int compIdx = GhostComponentIndex[baseOffset + comp].ComponentIndex;
int serializerIdx = GhostComponentIndex[baseOffset + comp].SerializerIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
if ((GhostComponentIndex[baseOffset + comp].SendMask & requiredSendMask) == 0)
{
continue;
}
var compSize = GhostComponentCollection[serializerIdx].ComponentType.IsBuffer
? GhostSystemConstants.DynamicBufferComponentSnapshotSize
: GhostComponentCollection[serializerIdx].ComponentSize;
if (!chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
UnsafeUtility.MemClear(dataPtr, chunk.Count * compSize);
}
else if (!GhostComponentCollection[serializerIdx].ComponentType.IsBuffer)
{
var compData = (byte *)chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafeReadOnlyPtr();
UnsafeUtility.MemCpy(dataPtr, compData, chunk.Count * compSize);
}
else
{
var bufferData = chunk.GetUntypedBufferAccessor(ref ghostChunkComponentTypesPtr[compIdx]);
var bufElemSize = GhostComponentCollection[serializerIdx].ComponentSize;
//Use local variable to iterate and set the buffer offset and length. The dataptr must be
//advanced "per chunk" to the next correct position
var tempDataPtr = dataPtr;
for (int i = 0; i < bufferData.Length; ++i)
{
//Retrieve an copy each buffer data. Set size and offset in the backup buffer in the component backup
var bufferPtr = bufferData.GetUnsafeReadOnlyPtrAndLength(i, out var size);
((int *)tempDataPtr)[0] = size;
((int *)tempDataPtr)[1] = bufferBackupDataOffset;
if (size > 0)
{
UnsafeUtility.MemCpy(bufferBackupDataPtr + bufferBackupDataOffset, (byte *)bufferPtr, size * bufElemSize);
}
bufferBackupDataOffset += size * bufElemSize;
tempDataPtr += compSize;
}
bufferBackupDataOffset = GhostCollectionSystem.SnapshotSizeAligned(bufferBackupDataOffset);
}
dataPtr = PredictionBackupState.GetNextData(dataPtr, compSize, chunk.Capacity);
}
if (typeData.NumChildComponents > 0)
{
var linkedEntityGroupAccessor = chunk.GetBufferAccessor(linkedEntityGroupType);
for (int comp = numBaseComponents; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[baseOffset + comp].ComponentIndex;
int serializerIdx = GhostComponentIndex[baseOffset + comp].SerializerIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
if ((GhostComponentIndex[baseOffset + comp].SendMask & requiredSendMask) == 0)
{
continue;
}
var isBuffer = GhostComponentCollection[serializerIdx].ComponentType.IsBuffer;
var compSize = isBuffer ? GhostSystemConstants.DynamicBufferComponentSnapshotSize : GhostComponentCollection[serializerIdx].ComponentSize;
if (!GhostComponentCollection[serializerIdx].ComponentType.IsBuffer)
{
//use a temporary for the iteration here. Otherwise when the dataptr is offset for the chunk, we
//end up in the wrong position
var tempDataPtr = dataPtr;
for (int ent = 0; ent < chunk.Count; ++ent)
{
var linkedEntityGroup = linkedEntityGroupAccessor[ent];
if (childEntityLookup.TryGetValue(linkedEntityGroup[GhostComponentIndex[baseOffset + comp].EntityIndex].Value, out var childChunk) &&
childChunk.chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
var compData = (byte *)childChunk.chunk.GetDynamicComponentDataArrayReinterpret <byte>(ghostChunkComponentTypesPtr[compIdx], compSize).GetUnsafeReadOnlyPtr();
UnsafeUtility.MemCpy(tempDataPtr, compData + childChunk.index * compSize, compSize);
}
else
{
UnsafeUtility.MemClear(tempDataPtr, compSize);
}
tempDataPtr += compSize;
}
}
else
{
var bufElemSize = GhostComponentCollection[serializerIdx].ComponentSize;
var tempDataPtr = dataPtr;
for (int ent = 0; ent < chunk.Count; ++ent)
{
var linkedEntityGroup = linkedEntityGroupAccessor[ent];
if (childEntityLookup.TryGetValue(linkedEntityGroup[GhostComponentIndex[baseOffset + comp].EntityIndex].Value, out var childChunk) &&
childChunk.chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
var bufferData = childChunk.chunk.GetUntypedBufferAccessor(ref ghostChunkComponentTypesPtr[compIdx]);
//Retrieve an copy each buffer data. Set size and offset in the backup buffer in the component backup
var bufferPtr = bufferData.GetUnsafeReadOnlyPtrAndLength(childChunk.index, out var size);
((int *)tempDataPtr)[0] = size;
((int *)tempDataPtr)[1] = bufferBackupDataOffset;
if (size > 0)
{
UnsafeUtility.MemCpy(bufferBackupDataPtr + bufferBackupDataOffset, (byte *)bufferPtr, size * bufElemSize);
}
bufferBackupDataOffset += size * bufElemSize;
}
else
{
//reset the entry to 0. Don't use memcpy in this case (is faster this way)
((long *)tempDataPtr)[0] = 0;
}
tempDataPtr += compSize;
}
bufferBackupDataOffset = GhostCollectionSystem.SnapshotSizeAligned(bufferBackupDataOffset);
}
dataPtr = PredictionBackupState.GetNextData(dataPtr, compSize, chunk.Capacity);
}
}
}
//Sum up all the dynamic buffers raw data content size. Each buffer content size is aligned to 16 bytes
private int GetChunkBuffersDataSize(GhostCollectionPrefabSerializer typeData, ArchetypeChunk chunk,
DynamicComponentTypeHandle *ghostChunkComponentTypesPtr, int ghostChunkComponentTypesLength, DynamicBuffer <GhostCollectionComponentIndex> GhostComponentIndex, DynamicBuffer <GhostComponentSerializer.State> GhostComponentCollection)
{
int numBaseComponents = typeData.NumComponents - typeData.NumChildComponents;
int bufferTotalSize = 0;
int baseOffset = typeData.FirstComponent;
for (int comp = 0; comp < numBaseComponents; ++comp)
{
int compIdx = GhostComponentIndex[baseOffset + comp].ComponentIndex;
int serializerIdx = GhostComponentIndex[baseOffset + comp].SerializerIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
if ((GhostComponentIndex[baseOffset + comp].SendMask & requiredSendMask) == 0)
{
continue;
}
if (!GhostComponentCollection[serializerIdx].ComponentType.IsBuffer)
{
continue;
}
if (chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
var bufferData = chunk.GetUntypedBufferAccessor(ref ghostChunkComponentTypesPtr[compIdx]);
for (int i = 0; i < bufferData.Length; ++i)
{
bufferTotalSize += bufferData.GetBufferCapacity(i) * GhostComponentCollection[serializerIdx].ComponentSize;
}
bufferTotalSize = GhostCollectionSystem.SnapshotSizeAligned(bufferTotalSize);
}
}
if (typeData.NumChildComponents > 0)
{
var linkedEntityGroupAccessor = chunk.GetBufferAccessor(linkedEntityGroupType);
for (int comp = numBaseComponents; comp < typeData.NumComponents; ++comp)
{
int compIdx = GhostComponentIndex[baseOffset + comp].ComponentIndex;
int serializerIdx = GhostComponentIndex[baseOffset + comp].SerializerIndex;
#if ENABLE_UNITY_COLLECTIONS_CHECKS
if (compIdx >= ghostChunkComponentTypesLength)
{
throw new System.InvalidOperationException("Component index out of range");
}
#endif
if ((GhostComponentIndex[baseOffset + comp].SendMask & requiredSendMask) == 0)
{
continue;
}
if (!GhostComponentCollection[serializerIdx].ComponentType.IsBuffer)
{
continue;
}
for (int ent = 0; ent < chunk.Count; ++ent)
{
var linkedEntityGroup = linkedEntityGroupAccessor[ent];
if (childEntityLookup.TryGetValue(linkedEntityGroup[GhostComponentIndex[baseOffset + comp].EntityIndex].Value,
out var childChunk) && childChunk.chunk.Has(ghostChunkComponentTypesPtr[compIdx]))
{
var bufferData = childChunk.chunk.GetUntypedBufferAccessor(ref ghostChunkComponentTypesPtr[compIdx]);
bufferTotalSize += bufferData.GetBufferCapacity(childChunk.index) * GhostComponentCollection[serializerIdx].ComponentSize;
}
bufferTotalSize = GhostCollectionSystem.SnapshotSizeAligned(bufferTotalSize);
}
}
}
return(bufferTotalSize);
}