public PointerEvent(int buttons, int x, int y, boolean absolute) { this(buttons, x, y, 0, absolute);
public PointerEvent(int buttons, int x, int y, int z, boolean absolute) { this.buttons = buttons; this.x = x; this.y = y; this.z = z; this.absolute = absolute;
	public PointerEvent(int buttons, int x, int y, boolean absolute) {		this(buttons, x, y, 0, absolute);	}