本文实例为大家分享了微信小程序实现贪吃蛇游戏的具体代码，供大家参考，具体内容如下
一、项目截图
二、源代码
1.WXML
代码如下（示例）：
<view class='container'>
<view class='content-bottom' bindtouchmove='touchMove' bindtouchstart='touchStart' bindtouchend='touchEnd'>
<view wx:for="{{ground}}" wx:for-item="cols" class='ground-row'>
<view wx:for="{{cols}}" class='ground-col'>
<view class='block block{{item}}'></view>
</view>
</view>
</view>
<view class='content-top'>
<view class='top-item top-score'>
<view class='score-description'>得分</view>
<view class='score-number'>{{score}}</view>
</view>
<view class='top-item top-start' bindtap='goStart'>START</view>
<view class='top-item top-score'>
<view class='score-description'>历史最高</view>
<view class='score-number'>{{maxScore}}</view>
</view>
</view>
</view>2.WXSS
代码如下（示例）：
.content-top {
display: flex;
}
.top-item {
flex: 1;
height: 150rpx;
margin: 0 20rpx;
line-height: 150rpx;
text-align: center;
border-radius: 16rpx;
}
.top-start {
font-size: 22px;
background: deepskyblue;
color: #fff;
}
.top-score {
background: #eee4da;
}
.score-description {
line-height: 70rpx;
}
.score-number {
line-height: 60rpx;
}
.content-bottom {
display: flex;
flex-direction: column;
width: 660rpx;
height: 840rpx;
margin: 50rpx auto 0;
}
.ground-row {
display: flex;
}
.ground-col {
flex: 1;
width: 30rpx;
height: 30rpx;
}
.block {
width: 100%;
height: 100%;
background: #eee;
}
.block1 {
background: black;
border-radius: 5px;
}
.block2 {
background:red;
border-radius: 5px;
}3.JS
代码如下（示例）：
// pages/demo/snake/snake.js
Page({
data: {
gameStart: false, // 游戏是否开始
score: 0, // 当前得分
maxScore: 0, // 历史最高分
isMaxActive: false,
rows: 28, // 操场行数
cols: 22, // 操场列数
ground: [[]], // 操场方块位置
snake: '', // 贪吃蛇的位置
food: [], // food位置
startX: 0,
startY: 0,
endX: 0,
endY: 0,
flag: 0, // 当前贪吃蛇移动的方向，0 右，1 下，2 左， 3 上
timer: null,
modaleHidden: true
},
onLoad: function (options) {
this.initGround(this.data.rows, this.data.cols) // 初始化操场
console.log(wx.getStorageSync("MaxScore"))
if (wx.getStorageSync("MaxScore")) {
this.setData({
maxScore: wx.getStorageSync("MaxScore"),
isMaxActive: true
})
} else {
this.setData({
isMaxActive: false
})
}
},
goStart: function () {
this.setData({
gameStart: true
})
this.onLoad()
this.initSnake(3) // 初始化贪吃蛇位置
this.initFood() // 初始化food
this.move(0)
},
initGround: function (rows, cols) {
this.data.ground = []
for (let i = 0; i < rows; i++) {
let arr = []
this.data.ground.push(arr)
for (let j = 0; j < cols; j++) {
this.data.ground[i].push(0)
}
}
this.setData({
ground: this.data.ground
})
},
initSnake: function (n) {
this.data.snake = []
for (let i = 0; i < n; i++) {
this.data.ground[0][i] = 1
this.data.snake.push([0,i])
}
this.setData({
ground: this.data.ground,
snake: this.data.snake
})
},
initFood: function () {
let row = Math.floor(Math.random()*this.data.rows)
let col = Math.floor(Math.random() * this.data.cols)
var ground = this.data.ground
ground[row][col] = 2
this.setData({
ground: ground,
food: [row, col]
})
console.log(this.data.food)
},
touchStart: function (event) {
this.data.startX = event.touches[0].pageX
this.data.startY = event.touches[0].pageY
},
touchMove: function (event) {
this.data.endX = event.touches[0].pageX
this.data.endY = event.touches[0].pageY
// console.log(this.data.endX, this.data.endY)
},
touchEnd: function (event) {
let tX = this.data.endX ? (this.data.endX - this.data.startX) : 0
let tY = this.data.endY ? (this.data.endY - this.data.startY) : 0
console.log(tX, tY)
if (!this.data.gameStart) {
return false
}
if (tY < 0 && Math.abs(tX) <= Math.abs(tY)) { // 向下滑动
this.data.flag = 3
} else if (tY > 0 && Math.abs(tX) <= Math.abs(tY)) { // 向上滑动
this.data.flag = 1
} else if (tX < 0 && Math.abs(tX) > Math.abs(tY)) { // 向左滑动
this.data.flag = 2
} else if (tX > 0 && Math.abs(tX) > Math.abs(tY)) { // 向右滑动
this.data.flag = 0
}
if(this.data.modaleHidden){
this.move(this.data.flag)
}
},
move: function (state) {
clearInterval(this.data.timer)
// console.log(this.data.snake.length)
var that = this
switch(state){ // 判断滑动方向
case 0:
this.data.timer = setInterval(function(){
that.moveRight()
}, 600)
break
case 1:
this.data.timer = setInterval(function () {
that.moveBottom()
}, 600)
break
case 2:
this.data.timer = setInterval(function () {
that.moveLeft()
}, 600)
break
case 3:
this.data.timer = setInterval(function () {
that.moveTop()
}, 600)
break
}
},
moveRight: function () {
// console.log(this.data.snake)
var snakeArr = this.data.snake
var snakeLen = snakeArr.length
var snakeHead = snakeArr[snakeLen - 1]
var snakeTail = snakeArr[0]
var ground = this.data.ground
for (var i = 0; i < snakeLen - 1; i++) {
snakeArr[i] = snakeArr[i + 1]
}
var x = snakeHead[0]
var y = snakeHead[1] + 1
if (y >= this.data.cols) {
this.gameOver()
return
}
snakeArr[snakeLen - 1] = [x, y]
ground[x][y] = 1
ground[snakeTail[0]][snakeTail[1]] = 0
this.setData({
snake: snakeArr,
ground: ground
})
this.checkGame(snakeTail, [x, y]) // 检查是否gameover
},
moveBottom: function () {
var snakeArr = this.data.snake
var snakeLen = snakeArr.length
var snakeHead = snakeArr[snakeLen - 1]
var snakeTail = snakeArr[0]
var ground = this.data.ground
for (var i = 0; i < snakeLen - 1; i++) {
snakeArr[i] = snakeArr[i + 1]
}
var x = snakeHead[0] + 1
var y = snakeHead[1]
if (x >= this.data.rows) {
this.gameOver()
return
}
snakeArr[snakeLen - 1] = [x, y]
ground[x][y] = 1
ground[snakeTail[0]][snakeTail[1]] = 0
this.setData({
snake: snakeArr,
ground: ground
})
this.checkGame(snakeTail, [x, y]) // 检查是否gameover
},
moveLeft: function () {
var snakeArr = this.data.snake
var snakeLen = snakeArr.length
var snakeHead = snakeArr[snakeLen - 1]
var snakeTail = snakeArr[0]
var ground = this.data.ground
for (var i = 0; i < snakeLen - 1; i++) {
snakeArr[i] = snakeArr[i + 1]
}
var x = snakeHead[0]
var y = snakeHead[1] - 1
if (y < 0) {
this.gameOver()
return
}
snakeArr[snakeLen - 1] = [x, y]
ground[x][y] = 1
ground[snakeTail[0]][snakeTail[1]] = 0
this.setData({
snake: snakeArr,
ground: ground
})
this.checkGame(snakeTail, [x, y]) // 检查是否gameover
},
moveTop: function () {
var snakeArr = this.data.snake
var snakeLen = snakeArr.length
var snakeHead = snakeArr[snakeLen - 1]
var snakeTail = snakeArr[0]
var ground = this.data.ground
for (var i = 0; i < snakeLen - 1; i++) {
snakeArr[i] = snakeArr[i + 1]
}
var x = snakeHead[0] - 1
var y = snakeHead[1]
if (x < 0) {
this.gameOver()
return
}
snakeArr[snakeLen - 1] = [x, y]
ground[x][y] = 1
console.log(y)
ground[snakeTail[0]][snakeTail[1]] = 0
this.setData({
snake: snakeArr,
ground: ground
})
this.checkGame(snakeTail, [x, y]) // 检查是否gameover
},
checkGame: function (snakeTail, snakeHead) {
console.log("测试snake移动")
console.log(snakeHead)
var snakeArrs = this.data.snake
var len = this.data.snake.length
var food = this.data.food
var ground = this.data.ground
console.log(this.data.snake[len-1])
// 判断有没有撞墙
if (snakeHead[0] >= 0 & snakeHead[0] < this.data.rows & snakeHead[1] >= 0 & snakeHead[1] < this.data.cols)
{
this.data.modaleHidden = true
this.collisionSnakeFood(snakeTail, snakeHead, food)
this.setData({
// snake: this.data.snakeArr,
// ground: this.data.ground,
modaleHidden: this.data.modaleHidden
})
} else {
this.gameOver()
return
}
},
// 撞到食物，游戏继续
collisionSnakeFood: function (tail, head, food) {
let snake = this.data.snake
let ground = this.data.ground
let row = food[0]
let col = food[1]
let score = this.data.score
let maxScore = this.data.maxScore
if (head[0] === food[0] & head[1] === food[1]) {
ground[row][col] = 1
snake.unshift(tail)
ground[tail[0]][tail[1]] = 1
this.initFood()
score += 5
if (!this.data.isMaxActive) {
maxScore = score
}
}
this.setData({
snake: snake,
ground: ground,
score: score,
maxScore: maxScore
})
},
// 游戏结束
gameOver: function () {
clearInterval(this.data.timer)
let _that = this
let maxS = this.data.maxScore
this.setData({
modaleHidden: false,
timer: null
})
if (wx.getStorageSync("MaxScore")){
let hisScore = wx.getStorageSync("MaxScore")
if (hisScore < maxS) {
wx.setStorageSync("MaxScore", maxS)
}
} else {
wx.setStorageSync("MaxScore", maxS)
}
wx.showModal({
title: '游戏失败',
content: '点击确定，重新开始新一局游戏；点击取消，返回首页',
success: function(res) {
if(res.confirm) {
_that.setData({
score: 0,
gameStart: false, // 游戏是否开始
snake: '', // 贪吃蛇的位置
food: [], // food位置
modaleHidden: true
})
_that.onLoad()
}
}
})
},
onShareAppMessage: function () {
}
})以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
