static void BuildPathAtTile(int xpos, int ypos, int zpos, TileEdge edge, PathType path_type, uint8 path_spr)
{
	VoxelStack *avs = _additions.GetModifyStack(xpos, ypos);

	Voxel *av = avs->GetCreate(zpos, true);
	av->SetInstance(SRI_PATH);
	VoxelStack *avs_origin = _additions.GetModifyStack(xpos + _tile_dxy[edge].x, xpos + _tile_dxy[edge].y);
	assert(avs != avs_origin);