if (dist<r2)
if (dist<=r2)
	boolean picked(int x, int y)	{		float dx = (x-radius);		float dx2 = dx*dx;		float dy = (y-radius);		float dy2 = dy*dy;		float dist = dx2+dy2;		float r2 = radius*radius;		if (dist<r2)		{			puck = new PlanePoint(x,y);			return true;		}		return false;	}