这篇文章将为大家详细讲解有关微信小程序实现贪吃蛇游戏的示例代码，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
微信小程序实现的贪吃蛇游戏，具体如下：
先来看看运行效果：
具体代码如下：
界面布局 pages/snake/snake/snake.wxml:
<!--snake.wxml-->
<view class="control" bindtouchstart="tapStart" bindtouchmove="tapMove" bindtouchend="tapEnd">
<view class="score">
<view class="title">snake</view>
<view class="scoredetail">
<view class="scoredesc">得分</view>
<view class="scorenumber">{{score}}</view>
</view>
<view class="scoredetail">
<view class="scoredesc">历史最高</view>
<view class="scorenumber">{{maxscore}}</view>
</view>
</view>
<view class="ground">
<view wx:for="{{ground}}" class="rows" wx:for-item="cols">
<view wx:for="{{cols}}" class="block block_{{item}}" >
</view>
</view>
</view>
<modal class="modal" hidden="{{modalHidden}}" no-cancel bindconfirm="modalChange">
<view> 游戏结束，重新开始吗？ </view>
</modal>
</view>逻辑功能 pages/snake/snake/snake.js:
//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<rows;i++){
var arr=[];
this.data.ground.push(arr);
for(var j=0;j<cols;j++){
this.data.ground[i].push(0);
}
}
},
//蛇
initSnake:function(len){
for(var i=0;i<len;i++){
this.data.ground[0][i]=1;
this.data.snake.push([0,i]);
}
},
//移动函数
move:function(){
var that=this;
this.data.timer=setInterval(function(){
that.changeDirection(that.data.direction);
that.setData({
ground:that.data.ground
});
},400);
},
tapStart: function(event){
this.setData({
startx: event.touches[0].pageX,
starty: event.touches[0].pageY
})
},
tapMove: function(event){
this.setData({
endx: event.touches[0].pageX,
endy: event.touches[0].pageY
})
},
tapEnd: function(event){
var heng = (this.data.endx) ? (this.data.endx - this.data.startx) : 0;
var shu = (this.data.endy) ? (this.data.endy - this.data.starty) : 0;
if(Math.abs(heng) > 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<len-1;i++){
arr[i]=arr[i+1];
};
var x=arr[len-1][0];
var y=arr[len-1][1]-1;
arr[len-1]=[x,y];
this.checkGame(snakeTAIL);
for(var i=1;i<len;i++){
ground[arr[i][0]][arr[i][1]]=1;
}
this.setData({
ground:ground,
snake:arr
});
return true;
},
changeRight: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<len-1;i++){
arr[i]=arr[i+1];
};
var x=arr[len-1][0];
var y=arr[len-1][1]+1;
arr[len-1]=[x,y];
this.checkGame(snakeTAIL);
for(var i=1;i<len;i++){
ground[arr[i][0]][arr[i][1]]=1;
}
this.setData({
ground:ground,
snake:arr
});
// var y=this.data.snake[0][1];
// var x=this.data.snake[0][0];
// this.data.ground[x][y]=0;
// console.log(this.data.ground[x]);
// console.log(this.data.snake);
// for(var i=0;i<this.data.snake.length-1;i++){
// this.data.snake[i]=this.data.snake[i+1];
// }
// this.data.snake[this.data.snake.length-1][1]++;
// for(var j=1;j<this.data.snake.length;j++){
// this.data.ground[this.data.snake[j][0]][this.data.snake[j][1]]=1;
// }
return true;
},
changeTop: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<len-1;i++){
arr[i]=arr[i+1];
};
var x=arr[len-1][0]-1;
var y=arr[len-1][1];
arr[len-1]=[x,y];
this.checkGame(snakeTAIL);
for(var i=1;i<len;i++){
ground[arr[i][0]][arr[i][1]]=1;
}
this.setData({
ground:ground,
snake:arr
});
return true;
},
changeBottom:function(){
var arr=this.data.snake;
var len=this.data.snake.length;
var snakeHEAD=arr[len-1];
var snakeTAIL=arr[0];
var ground=this.data.ground;
ground[snakeTAIL[0]][snakeTAIL[1]]=0;
for(var i=0;i<len-1;i++){
arr[i]=arr[i+1];
};
var x=arr[len-1][0]+1;
var y=arr[len-1][1];
arr[len-1]=[x,y];
this.checkGame(snakeTAIL);
for(var i=1;i<len;i++){
ground[arr[i][0]][arr[i][1]]=1;
}
this.setData({
ground:ground,
snake:arr
});
return true;
},
checkGame:function(snakeTAIL){
var arr=this.data.snake;
var len=this.data.snake.length;
var snakeHEAD=arr[len-1];
if(snakeHEAD[0]<0||snakeHEAD[0]>=this.data.rows||snakeHEAD[1]>=this.data.cols||snakeHEAD[1]<0){
clearInterval(this.data.timer);
this.setData({
modalHidden: false,
})
}
for(var i=0;i<len-1;i++){
if(arr[i][0]==snakeHEAD[0]&&arr[i][1]==snakeHEAD[1]){
clearInterval(this.data.timer);
this.setData({
modalHidden: false,
})
}
}
if(snakeHEAD[0]==this.data.food[0]&&snakeHEAD[1]==this.data.food[1]){
arr.unshift(snakeTAIL);
this.setData({
score:this.data.score+10
});
this.storeScore();
this.creatFood();
}
},
modalChange:function(){
this.setData({
score: 0,
ground:[],
snake:[],
food:[],
modalHidden: true,
direction:''
})
this.onLoad();
}
});关于“微信小程序实现贪吃蛇游戏的示例代码”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。
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