protected override void OnUpdate()
{
var ecb = _commandsBuffer.CreateCommandBuffer().ToConcurrent();
Entities.WithAll <ChunkTag, UpdateChunkTag, CalculateFacesTag>()
.ForEach(
(
Entity e,
int entityInQueryIndex,
ref DynamicBuffer <VoxelBufferElement> voxelBuffer,
ref DynamicBuffer <VisibleFacesBufferElement> visibleFacesBuffer
) => {
for (var x = 0; x < ChunkSize; ++x)
{
for (var y = 0; y < ChunkSize; ++y)
{
for (var z = 0; z < ChunkSize; ++z)
{
VisibleFacesBufferElement face;
var voxel = voxelBuffer[GetIndex(x, y, z)].value;
if (!IsOpaque(voxel))
{
face = VisibleFacesBufferElement.None;
}
else
{
var left =
x >= 1 &&
IsOpaque(voxelBuffer[GetIndex(x - 1, y, z)].value);
var bottom =
y >= 1 &&
IsOpaque(voxelBuffer[GetIndex(x, y - 1, z)].value);
var front =
z >= 1 &&
IsOpaque(voxelBuffer[GetIndex(x, y, z - 1)].value);
var right =
x < ChunkSize - 1 &&
IsOpaque(voxelBuffer[GetIndex(x + 1, y, z)].value);
var top =
y < ChunkSize - 1 &&
IsOpaque(voxelBuffer[GetIndex(x, y + 1, z)].value);
var back =
z < ChunkSize - 1 &&
IsOpaque(voxelBuffer[GetIndex(x, y, z + 1)].value);
face = new VisibleFacesBufferElement {
west = left
? TextureID.AIR
: TextureAtlas.GetFaceTexture(voxel, Direction.WEST),
east = right
? TextureID.AIR
: TextureAtlas.GetFaceTexture(voxel, Direction.EAST),
down = bottom
? TextureID.AIR
: TextureAtlas.GetFaceTexture(voxel, Direction.DOWN),
up = top
? TextureID.AIR
: TextureAtlas.GetFaceTexture(voxel, Direction.UP),
north = front
? TextureID.AIR
: TextureAtlas.GetFaceTexture(voxel, Direction.NORTH),
south = back
? TextureID.AIR
: TextureAtlas.GetFaceTexture(voxel, Direction.SOUTH),
};
}
visibleFacesBuffer[GetIndex(x, y, z)] = face;
}
}
}
// Mark as ready for render
ecb.RemoveComponent <CalculateFacesTag>(entityInQueryIndex, e);
ecb.AddComponent <CreateMeshChunkTag>(entityInQueryIndex, e);
}
)
.ScheduleParallel();
_commandsBuffer.AddJobHandleForProducer(Dependency);
}