(八)利用processing实现类似吃豆人的运行效果

来源：互联网发布：c语言产生0 9的随机数编辑：程序博客网时间：2024/05/01 09:22

实现简单的吃豆人运行效果:

//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_down(){    forward = 1;    draw_bean(radians(120), radians(420));    draw_eye();  }  void draw_ellipse(){    fill(255, 255, 0);    ellipse(x, y, sz, sz);    draw_eye();  }  void draw_eye(){    fill(0);    if(forward == 0){      ellipse(x+sz/4-4, y-sz/4, 5, 5);    }else if(forward == 1){      ellipse(x+sz/4, y+sz/4 -4, 5, 5);    }else if(forward == 2){      ellipse(x-sz/4+4, y-sz/4, 5, 5);    }else if(forward == 3){      ellipse(x-sz/4, y-sz/4+4, 5, 5);    }    noFill();    fill(255, 255, 0);  }  void draw_bean(float start, float stop){    arc(x, y, sz, sz, start, stop);    fill(255, 255, 0);  }  void move_right(){    if(x+sz/2 == width){      x = width-sz/2;      draw_right();    }else    {      if(flag < 10){        draw_right();        flag+=1;      }else if(flag>=10 && flag <15){        draw_ellipse();        flag+=1;      }else if(flag == 15){        flag = 0;      }      x += 1;      }  }  void move_left(){    if(x-sz/2 == 0){      x = sz/2;      draw_left();    }else    {      if(flag < 10){        draw_left();        flag+=1;      }else if(flag>=10 && flag <15){        draw_ellipse();        flag+=1;      }else if(flag == 15){        flag = 0;      }      x -= 1;      }  }  void move_up(){    if(y == sz/2){      y = sz/2;      draw_up();    }else    {      if(flag < 10){        draw_up();        flag+=1;      }else if(flag>=10 && flag <15){        draw_ellipse();        flag+=1;      }else if(flag == 15){        flag = 0;      }      y-= 1;      }  }  void move_down(){    if(y+sz/2 == height){      y = height-sz/2;      draw_down();    }else    {      if(flag < 10){        draw_down();        flag+=1;      }else if(flag>=10 && flag <15){        draw_ellipse();        flag+=1;      }else if(flag == 15){        flag = 0;      }      y += 1;      }  }  void draw_default(){    if(forward == 0)      move_right();    else if(forward == 1)      move_down();    else if(forward == 2)      move_left();    else if(forward == 3)      move_up();  }};DrawBeans db;void setup(){  db = new DrawBeans(100, 100, 40);  size(640, 480);  noStroke();  smooth();  frameRate(120);}void draw(){  background(120);  if(keyPressed && key == CODED){    if(keyCode == RIGHT){      db.move_right();    }else if(keyCode == DOWN){      db.move_down();    }else if(keyCode == LEFT){      db.move_left();    }else if(keyCode == UP){      db.move_up();    }  }  else{    db.draw_default();  }}

程序运行结果:

函数使用说明:

通过前面的简单代码就可以实现吃豆人的移动，类成员函数和成员变量还需要进行修改优化

0 0