public void Execute()
{
var addedEntityCount = 0;
var removedEntityCount = RemovedChunkEntities.Length;
for (var i = 0; i < GatheredChanges.Length; i++)
{
var changesForChunk = GatheredChanges[i];
addedEntityCount += changesForChunk.AddedComponentEntities.Length;
removedEntityCount += changesForChunk.RemovedComponentEntities.Length;
}
if (addedEntityCount == 0 && removedEntityCount == 0)
{
return;
}
var buffer = new UnsafeList(UnsafeUtility.SizeOf <byte>(), UnsafeUtility.AlignOf <byte>(), (addedEntityCount + removedEntityCount) * ComponentSize, Allocator);
var addedComponents = new UnsafeList(UnsafeUtility.SizeOf <Entity>(), UnsafeUtility.AlignOf <Entity>(), addedEntityCount, Allocator);
var removedComponents = new UnsafeList(UnsafeUtility.SizeOf <Entity>(), UnsafeUtility.AlignOf <Entity>(), removedEntityCount, Allocator);
var chunksWithRemovedData = new NativeList <int>(GatheredChanges.Length, Allocator.Temp);
for (var i = 0; i < GatheredChanges.Length; i++)
{
var changesForChunk = GatheredChanges[i];
if (changesForChunk.AddedComponentDataBuffer.IsCreated)
{
buffer.AddRangeNoResize <byte>(changesForChunk.AddedComponentDataBuffer.Ptr, changesForChunk.AddedComponentDataBuffer.Length);
addedComponents.AddRangeNoResize <Entity>(changesForChunk.AddedComponentEntities.Ptr, changesForChunk.AddedComponentEntities.Length);
changesForChunk.AddedComponentDataBuffer.Dispose();
changesForChunk.AddedComponentEntities.Dispose();
}
if (changesForChunk.RemovedComponentDataBuffer.IsCreated)
{
chunksWithRemovedData.AddNoResize(i);
}
}
for (var i = 0; i < chunksWithRemovedData.Length; i++)
{
var changesForChunk = GatheredChanges[chunksWithRemovedData[i]];
buffer.AddRangeNoResize <byte>(changesForChunk.RemovedComponentDataBuffer.Ptr, changesForChunk.RemovedComponentDataBuffer.Length);
removedComponents.AddRangeNoResize <Entity>(changesForChunk.RemovedComponentEntities.Ptr, changesForChunk.RemovedComponentEntities.Length);
changesForChunk.RemovedComponentDataBuffer.Dispose();
changesForChunk.RemovedComponentEntities.Dispose();
}
chunksWithRemovedData.Dispose();
buffer.AddRangeNoResize <byte>(RemovedChunkComponentDataBuffer.GetUnsafeReadOnlyPtr(), RemovedChunkComponentDataBuffer.Length);
removedComponents.AddRangeNoResize <Entity>(RemovedChunkEntities.GetUnsafeReadOnlyPtr(), RemovedChunkEntities.Length);
Result.Value = new Result
{
Buffer = buffer,
AddedComponents = addedComponents,
RemovedComponents = removedComponents
};
}