paddle.java

不但实现了所有的游戏功能

import java.awt.Color;

import acm.graphics.GRect;


public class Paddle extends GRect{
	/** Dimensions of the paddle */
	private static final int PADDLE_WIDTH = 60;
	private static final int PADDLE_HEIGHT = 10;

/** Offset of the paddle up from the bottom */
	private static final int PADDLE_Y_OFFSET = 30;
	
	public Paddle(int Width, int Height) {
		
		super((Width - PADDLE_WIDTH) / 2, Height - PADDLE_Y_OFFSET, PADDLE_WIDTH, PADDLE_HEIGHT);	
		this.setFilled(true);
		this.setFillColor(Color.BLUE);
		y_offset = Height - PADDLE_Y_OFFSET;
		x_extreme_right = Width - PADDLE_WIDTH;
		
	}
	
	public int getOriginalY(){
		return y_offset;
	}
	
	public int getExtremeRightX(){
		return x_extreme_right;
	}
	
	
	
	private int y_offset; //original Y_Offset
	private int x_extreme_right;//the extreme right x cordinate
	


}