(八) processing模拟吃豆人效果

    //114通过上下左右键控制吃豆人的移动
    class DrawBeans{
      int x;
      int y;
      int sz, flag;
      int forward;
      DrawBeans(int x, int y, int sz){
    this.x = x;
    this.y = y;
    this.sz = sz;
    flag = 0;
    forward = 0;
      }
      void draw_right(){
    forward = 0;
    draw_bean(radians(30), radians(330));
    draw_eye();
      }
      void draw_left(){
    forward = 2;
    draw_bean(radians(210), radians(510));
    draw_eye();
      }
      void draw_up(){
    forward = 3;
    draw_bean(radians(300), radians(600));
    draw_eye();  
      }
      void draw