defaultsnakeunit.java

前段时间帮同学写了个简单动画程序：“贪食蛇的原型”

package com.cxlife.snake;

import java.awt.Graphics2D;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Component;
//移动单元的实现类：
//职责：覆辙绘制本身的式样。
public class DefaultSnakeUnit extends SnakeUnit{
  public DefaultSnakeUnit(){

  }
  //绘制蛇身
  public  void doDraw(final Graphics g){//绘制蛇身
    if (g == null)
      return ;
    g.setColor(super.snake_color);//设置蛇身的颜色.
    g.fillRect(super.left,super.top,super.width,super.height);
  }
  //对象克窿
  public  Object clone(){
    DefaultSnakeUnit dsu = new DefaultSnakeUnit();
    dsu.left = this.left;
    dsu.top  = this.top;
    dsu.width= this.width;
    dsu.height = this.height;
    dsu.curr_direction = this.curr_direction;
    dsu.next_direction = this.next_direction;
    dsu.snake_color    = this.snake_color;
    return dsu;
  }

}