public BufferAccessor <T> GetBufferAccessor <T>(ArchetypeChunkBufferType <T> bufferComponentType)
where T : struct, IBufferElementData
{
#if ENABLE_UNITY_COLLECTIONS_CHECKS
AtomicSafetyHandle.CheckReadAndThrow(bufferComponentType.m_Safety0);
#endif
var archetype = m_Chunk->Archetype;
var typeIndex = bufferComponentType.m_TypeIndex;
var typeIndexInArchetype = ChunkDataUtility.GetIndexInTypeArray(archetype, typeIndex);
if (typeIndexInArchetype == -1)
{
#if ENABLE_UNITY_COLLECTIONS_CHECKS
return(new BufferAccessor <T>(null, 0, 0, true, bufferComponentType.m_Safety0, bufferComponentType.m_Safety1));
#else
return(new BufferAccessor <T>(null, 0, 0));
#endif
}
if (!bufferComponentType.IsReadOnly)
{
m_Chunk->ChangeVersion[typeIndexInArchetype] = bufferComponentType.GlobalSystemVersion;
}
var buffer = m_Chunk->Buffer;
var length = m_Chunk->Count;
var startOffset = archetype->Offsets[typeIndexInArchetype];
int stride = archetype->SizeOfs[typeIndexInArchetype];
#if ENABLE_UNITY_COLLECTIONS_CHECKS
return(new BufferAccessor <T>(buffer + startOffset, length, stride, bufferComponentType.IsReadOnly, bufferComponentType.m_Safety0, bufferComponentType.m_Safety1));
#else
return(new BufferAccessor <T>(buffer + startOffset, length, stride));
#endif
}
public bool Has <T>(ArchetypeChunkBufferType <T> chunkBufferType)
where T : struct, IBufferElementData
{
var typeIndexInArchetype = ChunkDataUtility.GetIndexInTypeArray(m_Chunk->Archetype, chunkBufferType.m_TypeIndex);
return(typeIndexInArchetype != -1);
}
public void AssertWillDestroyAllInLinkedEntityGroup(NativeArray <ArchetypeChunk> chunkArray,
ArchetypeChunkBufferType <LinkedEntityGroup> linkedGroupType,
ref Entity errorEntity,
ref Entity errorReferencedEntity)
{
var chunks = (ArchetypeChunk *)chunkArray.GetUnsafeReadOnlyPtr();
var chunksCount = chunkArray.Length;
var tempChunkStateFlag = (uint)ChunkFlags.TempAssertWillDestroyAllInLinkedEntityGroup;
for (int i = 0; i != chunksCount; i++)
{
var chunk = chunks[i].m_Chunk;
Assert.IsTrue((chunk->Flags & tempChunkStateFlag) == 0);
chunk->Flags |= tempChunkStateFlag;
}
errorEntity = default;
errorReferencedEntity = default;
for (int i = 0; i < chunkArray.Length; ++i)
{
if (!chunks[i].Has(linkedGroupType))
{
continue;
}
var chunk = chunks[i];
var buffers = chunk.GetBufferAccessor(linkedGroupType);
for (int b = 0; b != buffers.Length; b++)
{
var buffer = buffers[b];
int entityCount = buffer.Length;
var entities = (Entity *)buffer.GetUnsafeReadOnlyPtr();
for (int e = 0; e != entityCount; e++)
{
var referencedEntity = entities[e];
if (Exists(referencedEntity))
{
var referencedChunk = GetChunk(referencedEntity);
if ((referencedChunk->Flags & tempChunkStateFlag) == 0)
{
errorEntity = entities[0];
errorReferencedEntity = referencedEntity;
}
}
}
}
}
for (int i = 0; i != chunksCount; i++)
{
var chunk = chunks[i].m_Chunk;
Assert.IsTrue((chunk->Flags & tempChunkStateFlag) != 0);
chunk->Flags &= ~tempChunkStateFlag;
}
}
public uint GetComponentVersion <T>(ArchetypeChunkBufferType <T> chunkBufferType)
where T : struct, IBufferElementData
{
var typeIndexInArchetype = ChunkDataUtility.GetIndexInTypeArray(m_Chunk->Archetype, chunkBufferType.m_TypeIndex);
if (typeIndexInArchetype == -1)
{
return(0);
}
return(m_Chunk->GetChangeVersion(typeIndexInArchetype));
}
public unsafe BufferAccessor <T> GetBufferAccessor <T>(ArchetypeChunkBufferType <T> bufferComponentType) where T : struct, IBufferElementData
{
BufferAccessor <T> accessor;
AtomicSafetyHandle.CheckReadAndThrow(bufferComponentType.m_Safety);
Unity.Entities.Archetype *archetype = this.m_Chunk.Archetype;
int indexInTypeArray = ChunkDataUtility.GetIndexInTypeArray(archetype, bufferComponentType.m_TypeIndex);
if (indexInTypeArray == -1)
{
accessor = new BufferAccessor <T>(null, 0, 0, true, bufferComponentType.m_Safety, bufferComponentType.m_ArrayInvalidationSafety);
}
else
{
if (!bufferComponentType.IsReadOnly)
{
this.m_Chunk.ChangeVersion[indexInTypeArray] = bufferComponentType.GlobalSystemVersion;
}
int count = this.m_Chunk.Count;
accessor = new BufferAccessor <T>(&this.m_Chunk.Buffer.FixedElementField + archetype->Offsets[indexInTypeArray], count, archetype->SizeOfs[indexInTypeArray], bufferComponentType.IsReadOnly, bufferComponentType.m_Safety, bufferComponentType.m_ArrayInvalidationSafety);
}
return(accessor);
}
public bool DidChange <T>(ArchetypeChunkBufferType <T> chunkBufferType, uint version) where T : struct, IBufferElementData
{
return(ChangeVersionUtility.DidChange(GetComponentVersion(chunkBufferType), version));
}
public void AssertWillDestroyAllInLinkedEntityGroup(NativeArray <ArchetypeChunk> chunkArray,
ArchetypeChunkBufferType <LinkedEntityGroup> linkedGroupType)
{
var chunks = (ArchetypeChunk *)chunkArray.GetUnsafeReadOnlyPtr();
var chunksCount = chunkArray.Length;
var tempChunkStateFlag = (uint)ChunkFlags.TempAssertWillDestroyAllInLinkedEntityGroup;
for (int i = 0; i != chunksCount; i++)
{
var chunk = chunks[i].m_Chunk;
Assert.IsTrue((chunk->Flags & tempChunkStateFlag) == 0);
chunk->Flags |= tempChunkStateFlag;
}
string error = null;
for (int i = 0; i < chunkArray.Length; ++i)
{
if (!chunks[i].Has(linkedGroupType))
{
continue;
}
var chunk = chunks[i];
var buffers = chunk.GetBufferAccessor(linkedGroupType);
for (int b = 0; b != buffers.Length; b++)
{
var buffer = buffers[b];
int entityCount = buffer.Length;
var entities = (Entity *)buffer.GetUnsafePtr();
for (int e = 0; e != entityCount; e++)
{
var referencedEntity = entities[e];
if (Exists(referencedEntity))
{
var referencedChunk = GetChunk(referencedEntity);
if ((referencedChunk->Flags & tempChunkStateFlag) == 0)
{
error =
$"DestroyEntity(EntityQuery query) is destroying entity {entities[0]} which contains a LinkedEntityGroup and the entity {entities[e]} in that group is not included in the query. If you want to destroy entities using a query all linked entities must be contained in the query..";
}
}
}
}
}
for (int i = 0; i != chunksCount; i++)
{
var chunk = chunks[i].m_Chunk;
Assert.IsTrue((chunk->Flags & tempChunkStateFlag) != 0);
chunk->Flags &= ~tempChunkStateFlag;
}
if (error != null)
{
throw new ArgumentException(error);
}
}
