微信小程序实现的贪吃蛇游戏【附源码下载】

  snake
  
    得分
    {{score}}
  
  
    历史最高
    {{maxscore}}
  


  
    
    
  

//snake.js
var app = getApp();
Page({
  data:{
    score: 0,//比分
    maxscore: 0,//最高分
    startx: 0,
    starty: 0,
    endx:0,
    endy:0,//以上四个做方向判断来用
    ground:[],//存储操场每个方块
    rows:28,
    cols:22,//操场大小
    snake:[],//存蛇
    food:[],//存食物
    direction:'',//方向
    modalHidden: true,
    timer:''
  } ,
  onLoad:function(){
    var maxscore = wx.getStorageSync('maxscore');
    if(!maxscore) maxscore = 0
    this.setData({
    maxscore:maxscore
    });
    this.initGround(this.data.rows,this.data.cols);//初始化操场
    this.initSnake(3);//初始化蛇
    this.creatFood();//初始化食物
    this.move();//蛇移动
  },
  //计分器
  storeScore:function(){
   if(this.data.maxscore < this.data.score){
   this.setData({
    maxscore:this.data.score
    })
    wx.setStorageSync('maxscore', this.data.maxscore)
   }
 },
 //操场
  initGround:function(rows,cols){
    for(var i=0;i 5 || Math.abs(shu) > 5){
      var direction = (Math.abs(heng) > Math.abs(shu)) ? this.computeDir(1, heng):this.computeDir(0, shu);
      switch(direction){
      case 'left':
        if(this.data.direction=='right')return;
        break;
      case 'right':
        if(this.data.direction=='left')return;
        break;
      case 'top':
        if(this.data.direction=='bottom')return;
        break;
      case 'bottom':
        if(this.data.direction=='top')return;
        break;
      default:
    }
    this.setData({
    startx:0,
    starty:0,
    endx:0,
    endy:0,
    direction:direction
    })
  }
  },
  computeDir: function(heng, num){
  if(heng) return (num > 0) ? 'right' : 'left';
  return (num > 0) ? 'bottom' : 'top';
  },
  creatFood:function(){
    var x=Math.floor(Math.random()*this.data.rows);
    var y=Math.floor(Math.random()*this.data.cols);
    var ground= this.data.ground;
    ground[x][y]=2;
    this.setData({
      ground:ground,
      food:[x,y]
    });
  },
  changeDirection:function(dir){
    switch(dir){
    case 'left':
      return this.changeLeft();
      break;
    case 'right':
      return this.changeRight();
      break;
    case 'top':
      return this.changeTop();
      break;
    case 'bottom':
      return this.changeBottom();
      break;
    default:
    }
  },
  changeLeft:function(){
    var arr=this.data.snake;
    var len=this.data.snake.length;
    var snakeHEAD=arr[len-1][1];
    var snakeTAIL=arr[0];
    var ground=this.data.ground;
    ground[snakeTAIL[0]][snakeTAIL[1]]=0; 
    for(var i=0;i=this.data.rows||snakeHEAD[1]>=this.data.cols||snakeHEAD[1]<0){
        clearInterval(this.data.timer);
          this.setData({
          modalHidden: false,
            }) 
    }
    for(var i=0;i