private IIcon getCasingIcon(IBlockAccess blockAccess, int x, int y, int z, int side) {
TileEntity te = blockAccess.getTileEntity(x, y, z);
if(te instanceof TileEntityReactorPart) {
TileEntityReactorPart part = (TileEntityReactorPart)te;
PartPosition position = part.getPartPosition();
MultiblockReactor reactor = part.getReactorController();
if(reactor == null || !reactor.isAssembled()) {
return _icons[METADATA_CASING][DEFAULT];
}