本篇内容介绍了“基于Vue uniapp怎么实现贪吃蛇游戏”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
游戏演示
代码结构
详细代码结构如果需要请到github查看
<template><view ref="body" class="content"><view>蛇蛇目前：{{snakes.length}}米长</view><view class="game-field"> <!-- 地面板块 --> <view class="block" v-for="(x, i) in blocks" :key="i"></view></view> <view v-show="!started || ended" class="game-board-wrap"> <view v-show="!started" class="game-board"> <view class="title">选择游戏难度</view> <radio-group name="radio" @change="bindLevelChange"> <label class="label"> <radio value="1" :checked="level==1" /><text>简单模式</text> </label> <label class="label"> <radio value="2" :checked="level==2" /><text>正常模式</text> </label> <label class="label"> <radio value="3" :checked="level==3" /><text>困难模式</text> </label> <label class="label"> <radio value="4" :checked="level==4" /><text>地狱模式</text> </label> </radio-group> <button type="primary" @click="start">开始游戏</button> </view><view v-show="ended" class="settle-board"> <view class="title">游戏结束</view> <view class="result">您的蛇蛇达到了{{snakes.length}}米</view> <view class="btns"> <button type="primary" @click="reStart">再次挑战</button> <button type="primary" plain @click="rePick">重选难度</button> </view></view></view></view></template><script>export default { data() { return { blocks: [], // 板块 worms: [], // 虫子 snakes: [0, 1, 2, 3], // 蛇身 direction: "right", // 蛇移动方向 }; }, onLoad() { this.initGame(); }, methods: { initGame() { this.blocks = new Array(100).fill(0); // 生成100个地面板块 this.worms = [Math.floor(Math.random() * 96) + 4]; // 随机生成虫子 this.snakes = [0, 1, 2, 3]; // 初始化蛇身位置 } }}</script>渲染蛇身
蛇身的渲染根据snakes来匹配地面板块的索引 修改对应的背景图来渲染蛇身
<template> <view class="game-field"> <view class="block" : v-for="(x, i) in blocks" :key="i"> </view> </view></template><script>import worm from "worm.png";import snakeBody from "snake_body.png";import snakeHead from "snake_head.png";import snakeTail from "snake_tail.png";import polluteBlock from "pollute.png";import wormBoom from "worm_4.png";export default { methods: { bg(type, index) { let bg = ""; switch (type) { case 0: // 地板 bg = "unset"; break; case 1: // 虫子 if (this.boom) { bg = `url(${wormBoom})`; } else { bg = `url(${worm})`; } break; case 2: // 蛇 let head = this.snakes[this.snakes.length - 1]; let tail = this.snakes[0]; if (index === head) { bg = `url(${snakeHead})`; } else if (index === tail) { bg = `url(${snakeTail})`; } else { bg = `url(${snakeBody})`; } break; case 3: // 污染的地块 bg = `url(${polluteBlock})`; break; } return bg； }, }}</scipt>控制蛇的方向
通过监听键盘按键事件和手势来控制蛇的方向
<template><view ref="body" class="content" @keyup.left="bindLeft" @keyup.right="bindRight" @keyup.down="bindDown"@keyup.up="bindUp" @touchstart="handleTouchStart" @touchmove="handleTouchMove"> <view>蛇蛇目前：{{snakes.length}}米长</view> <view class="game-field"> <view class="block" :(x, i) in blocks" :key="i"></view> </view></view></template><script> export default { data(){ return { direction: "right", started: false, // 游戏开始了 ended: false, // 游戏结束了 level: 1, // 游戏难度 lastX: 0, lastY: 0, } }, onLoad() { this.initGame(); }, methods:{ initGame() { this.blocks = new Array(100).fill(0); // 生成100个地面板块 this.worms = [Math.floor(Math.random() * 96) + 4]; // 随机生成虫子 this.snakes = [0, 1, 2, 3]; // 初始化蛇身位置 document.onkeydown = (e) => { switch (e.keyCode) { // 获取当前按下键盘键的编码 case 37: // 按下左箭头键 this.bindLeft(); break; case 39: // 按下右箭头键 this.bindRight(); break; case 38: // 按下上箭头键 if (!this.started) { this.level--; } else { this.bindUp(); } break; case 40: // 按下下箭头键 if (!this.started) { this.level++; } else { this.bindDown(); } break; } } }, handleTouchStart(e) { // 手指开始位置 this.lastX = e.touches[0].pageX; this.lastY = e.touches[0].pageY; }, handleTouchMove(e) { let lastX = e.touches[0].pageX; // 移动的x轴坐标 let lastY = e.touches[0].pageY; // 移动的y轴坐标 let touchX = lastX - this.lastX; let touchY = lastY - this.lastY if (Math.abs(touchX) > Math.abs(touchY)) { if (touchX < 0) { if(this.direction === "right") return; this.direction = 'left' } else if (touchX > 0) { if(this.direction === "left") return; this.direction = 'right' } } else { if (touchY < 0) { if(this.direction === "down") return; this.direction = 'up' } else if (touchY > 0) { if(this.direction === "up") return; this.direction = 'down' } } this.lastX = lastX; this.lastY = lastY; }, bindUp() { if (this.direction === "down") return; this.direction = "up"; }, bindDown() { if (this.direction === "up") return; this.direction = "down"; }, bindLeft() { if (this.direction === "right") return; this.direction = "left"; }, bindRight() { if (this.direction === "left") return; this.direction = "right"; }, } }</script>“基于Vue uniapp怎么实现贪吃蛇游戏”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注编程网网站，小编将为大家输出更多高质量的实用文章！
