Method destroy

src/world/scene_graph.cpp:220–244

}

void SceneGraph::destroy(TransformId transform)
{
	CE_ASSERT(transform.i < _data.size, "Index out of bounds");

	// Unlink all children.
	TransformId cur = _data.first_child[transform.i];
	while (is_valid(cur)) {
		TransformId next_sibling = _data.next_sibling[cur.i];
		unlink(cur);
		cur = next_sibling;
	}
	unlink(transform);

	const u32 last = _data.size - 1;
	const UnitId u = _data.unit[transform.i];
	const UnitId last_u = _data.unit[last];

	if (last != transform.i) {
		scene_graph_swap(*this, transform, make_instance(last));
		hash_map::set(_map, last_u, transform.i);
	}
	hash_map::remove(_map, u);

	--_data.size;
}

TransformId SceneGraph::instance(UnitId unit)
{