public static tile placeInstance(tile proto, Vector2 pos, world parWorld)
{
tile t = parWorld.getTileAt((int)pos.x, (int)pos.y);
t.tileType = proto.tileType;
t.baseType = proto.baseType;
t.parentWorld = parWorld;
t.position = pos;
if (t.onSetCB != null)
{
t.onSetCB(t); // calls the callback
}
return(t);
}