import java.awt.Color;
import java.awt.Graphics;

public class DeceleratingBall extends Ball 
{
    private Ball workerBall;

    public DeceleratingBall( Ball aBall )
    {
        super();
        workerBall = aBall;
    }

    public void move()
    {
        workerBall.move();
        workerBall.adjustSpeedBy( -0.01 );
    }

    public void paint( Graphics g )
    {
        workerBall.paint( g );
    }

    // --- We must delegate protected messages, too.

    protected void adjustSpeedBy( double ddx, double ddy )
    {
        workerBall.adjustSpeedBy( ddx, ddy );
    }

    protected void adjustSpeedBy( double factor )
    {
        workerBall.adjustSpeedBy( factor );
    }

    protected void reverseDeltaX()
    {
        workerBall.reverseDeltaX();
    }

    protected void reverseDeltaY()
    {
        workerBall.reverseDeltaY();
    }
    
    protected void moveBy( int deltaX, int deltaY )
    {
        workerBall.moveBy( deltaX, deltaY );
    }

    protected int x()
    {
        return workerBall.x();
    }

    protected int y()
    {
        return workerBall.y();
    }

    protected Color color()
    {
        return workerBall.color();
    }

    protected void setColor( Color c )
    {
        workerBall.setColor( c );
    }
}