public boolean intersects(GRectangle r2) {
		GRectangle r1 = this;
		if (r1.xc > r2.xc + r2.myWidth) return false;
		if (r1.yc > r2.yc + r2.myHeight) return false;
		if (r2.xc > r1.xc + r1.myWidth) return false;
		if (r2.yc > r1.yc + r1.myHeight) return false;
		return true;
	}