this.location = location;
this.location = new Point(location);
    ChangeTileOwnershipMove(ReadOnlyWorld w, Point location,	    FreerailsPrincipal newOwner) {	oldOwner = (FreerailsPrincipal) ((FreerailsTile) w.getTile(location.x,		    location.y)).getOwner();	this.newOwner = newOwner;	this.location = location;    }