文章用户圈子话题

JS编写贪吃蛇代码【大神分享】

今天爱分享给大家带来JS编写贪吃蛇代码【大神分享】，希望大家能够喜欢。

儿时的经典游戏，无非俄罗斯方块、贪吃蛇、推箱子，之后才有了智能拼图、麻将、象棋、连连看、消消乐。今天拿出来一款JS贪吃蛇供大家学习、参考。
  游戏玩法不多做赘述，可以调整关卡，可以调整爬行速度，祝您游戏愉快。

部分游戏截图：

<!DOCTYPE html>
<html>
<head>
	<title>贪吃蛇</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
	<style type="text/css">
		.backDiv {
			text-align: center;
			position:absolute;
			top:20px;
			left:300px;
			width:820px;
			height:550px;
		}
		.display {
			position:absolute;
			top:0px;
			left:685px;
			width:180px;
			height:510px;
			border: 5px solid black;
			background-color: #ccffff;
		}
		#gamePanel table {
			border-collapse: collapse;/*合并单元格边框*/
			border: 5px solid black;
			background-color: #f0f0f0;
		}
		#gamePanel td {
			width:15px;
			height:15px;
		}
		#scoreDiv {
			position: absolute;
			top: 20px;
			left:20px;
			text-align: left;
			font-size: 20px;
			font-weight: bold;
		}
		#prompt {
			position: absolute;
			top: 180px;
			left: 20px;
			text-align: left;
			font-weight: bold;
		}
		#operator {
			position: absolute;
			top:550px;
			left:100px;
		}
		#result {
			position: absolute;
			top:200px;
			left:220px;
			background-color: #00ffff;
			font-size: 20px;
			font-weight: bold;
			text-align: left;
			padding: 20px;
		}
	</style>
	<script>
	var snake = [];// 蛇数组
	var barrers = [];// 障碍物数组
	var game = {sizeX:"30",sizeY:"40",record:"0"};
	var appearTime = disappearTime =  0;// 超级食物出现
	var superFoodX = superFoodY = null;
	var color = 0;// 食物颜色
	function init(){
		clearTimeout(game.time);
		snake = [];
		barrers = [];
		game.x = 0;game.y = 1;
		game.dir = null;
		game.direction = "right";
		game.rate = null;
		game.lengths = 2;// 蛇的长度
		game.score = 0;
		$("scoreDiv").innerHTML = "得分："+game.score+"<br/><br/>长度："+ game.lengths+"<br/><br/>"+"最高分："+game.record;
		$("pass").disabled = false;
		$("rate").disabled = false;
		$("start").disabled = false;
		bord();// 设置界面
		barrer();// 设置障碍物
		$("result").style.visibility = "hidden";
		snake.push("tb_" + game.x + "_" + (game.y-1));
		snake.push("tb_" + game.x + "_" + game.y);// 蛇头
	}
	function $(id){
		return document.getElementById(id);
	}
	// 表格
	function bord(){
		var panel = [];// 游戏面板
		var proPanel = [];// 提示面板
		panel.push("<table>");
		for(var i=0; i<game.sizeX; i++){
			panel.push("<tr>");
			for(var j=0; j<game.sizeY; j++){
				panel.push('<td id="tb_' + i + "_" + j + '" > </td>');
			}
			panel.push("</tr>");
		}
		panel.push("</table>");
		$("gamePanel").innerHTML = panel.join("");
		proPanel.push("<table>");
		proPanel.push('<tr>'+'<td width="20px" height="20px" bgcolor="#ff3300"></td>' + '<td>&nbsp得分+10</td>'+'</tr>');
		proPanel.push('<tr>'+'<td width="20px" height="20px" bgcolor="#33cc33"></td>' + '<td>&nbsp得分+30</td>'+'</tr>');
		proPanel.push('<tr>'+'<td width="20px" height="20px" bgcolor="#99ff66"></td>' + '<td>&nbsp得分+50</td>'+'</tr>');
		proPanel.push('<tr>'+'<td width="20px" height="20px" bgcolor="#ffff00"></td>' + '<td>&nbsp得分+100</td>'+'</tr>');
		proPanel.push('<tr>'+'<td width="20px" height="20px" bgcolor="#006600"></td>' + '<td>&nbsp得分-30</td>'+'</tr>');
		proPanel.push('<tr>'+'<td width="20px" height="20px" bgcolor="#000000"></td>' + '<td>&nbsp得分-50</td>');
		proPanel.push("</table>");
		$("prompt").innerHTML = proPanel.join("");
	}
	// 关卡障碍物设置
	function barrer() {
		var passValue = $("pass").value;
		for(var i=0; i<barrers.length; i++) {
			$(barrers[i]).style.backgroundColor = "";
		}
		barrers = [];
		if(passValue == 2) {
			for(var i=8; i<game.sizeX-8; i++) {
				barrers.push("tb_" + i + "_" + 10);
				barrers.push("tb_" + i + "_" + (game.sizeY-10));
			}
		}
		if(passValue == 3) {
			for(var i=8; i<game.sizeY-8; i++) {
				barrers.push("tb_" + Math.floor(game.sizeX/2) + "_" + i);
			}
			for(var i=6; i<game.sizeX-6; i++) {
				barrers.push("tb_" + i + "_" + Math.floor(game.sizeY/2));
			}
		}
		if(passValue == 4) {
			for(var i=12; i<game.sizeY-11; i++) {
				barrers.push("tb_" + Math.floor(game.sizeX/2) + "_" + i);
			}
			for(var j=6; j<game.sizeX-6; j++) {
				barrers.push("tb_" + j + "_" + Math.floor(game.sizeY/2+1));
			}
			for(var i=6; i<game.sizeX-6; i++) {
				if(i < game.sizeX/2) {barrers.push("tb_"+i+"_"+12);}
				else{barrers.push("tb_"+i+"_"+(game.sizeY-11));}
			}
			for(var j=12; j<game.sizeY-11; j++) {
				if(j <= game.sizeY/2) {barrers.push("tb_"+(game.sizeX-7)+"_"+j);}
				else {barrers.push("tb_"+6+"_"+(j+1));}
			}
		}
		if(passValue == 5) {
			for(var i=0; i<14; i++) {
				barrers.push("tb_" + 7 + "_" + i);
				barrers.push("tb_" + (game.sizeX-8) + "_" + (game.sizeY-i-1));
			}
			for(var i=15; i<25; i++) {
				if(i < 18 || i > 21){
					barrers.push("tb_"+10 +"_"+i);
					barrers.push("tb_"+(game.sizeX-11)+"_"+i);
				}
			}
			for(var i=0; i<9; i++) {
				barrers.push("tb_" + i + "_" + (game.sizeY-13));
				barrers.push("tb_" + (game.sizeX-i-1) + "_" + 12);
			}
			for(var i=11; i<19; i++) {
				if(i < 13 || i > 16){
					barrers.push("tb_"+i+"_"+15);
					barrers.push("tb_"+i+"_"+(game.sizeY-16));
				}
			}
		}
		// 设置障碍物颜色
		for(var i=0; i<barrers.length; i++) {
			$(barrers[i]).style.backgroundColor = "#660033";
		}
	}
	// 开始游戏
	function startGame() {
		food();
		game.start = true;
		$("pass").disabled = true;
		$("rate").disabled = true;
		$("start").disabled = true;
		game.rate = $("rate").value;
		$(snake[0]).style.backgroundColor = "#0066ff";
		$(snake[1]).style.backgroundColor = "blue";
		game.time = setTimeout(function(){
			snakeMove();
		},game.rate);
		superFood();
	}
	// 蛇移动 速度，方向
	function snakeMove() {
		if(game.direction == "right") {game.y += 1; }// 右移
		if(game.direction == "left") {game.y -= 1; }// 左移
		if(game.direction == "up") {game.x -= 1; }// 上移
		if(game.direction == "down") {game.x += 1; }// 下移
		// 判断游戏是否结束
		if(result() == true) {
			clearTimeout(game.time); clearTimeout(appearTime); clearTimeout(disappearTime);
			game.start = false;
			var res = "游戏结束!<br/>";
			if(game.score > game.record){
				res += "恭喜你破纪录啦！<br/>";
				$("scoreDiv").innerHTML = "得分：" + game.score + "<br/><br/>最高分：" + game.record;
			}
			res += "您的得分为：" + game.score + "<br/>长度:"+game.lengths;
			$("result").style.visibility = "visible";
			$("result").innerHTML = res;
			return;
		}
		if(game.x==game.fx && game.y==game.fy) {eat(1);}
		if(game.x==superFoodX && game.y==superFoodY) {eat(2);}
		move();
		game.time = setTimeout(function() {
			snakeMove(game.rate,game.direction);
		},game.rate);
	}
	function move() {
		$(snake[0]).style.backgroundColor = "";
		// 保留蛇当前的位置
		for(var i=1; i<snake.length; i++) {
			snake[i-1] = snake[i];
		}
		snake[snake.length-1] = "tb_" + game.x + "_" + game.y;// 蛇头位置
		for(var i=0; i<snake.length-1; i++) {
			$(snake[i]).style.backgroundColor = "#0066ff";
		}
		$(snake[i]).style.backgroundColor = "blue";
	}
	// 食物 位置随机且不能与蛇位置重复
	function food() {
		game.fx = Math.floor(Math.random(game.sizeX)*game.sizeX);
		game.fy = Math.floor(Math.random(game.sizeY)*game.sizeY);
		if($("tb_" + game.fx + "_" + game.fy).style.backgroundColor != "") {food(); }
		else {$("tb_" + game.fx + "_" + game.fy).style.backgroundColor = "#ff3300"; }
	}
	// 超级食物出现
	function superFood() {
		appearTime = setTimeout(function(){
			var n = Math.floor(Math.random(10)*10);
			superFoodX = Math.floor(Math.random(game.sizeX)*game.sizeX);
			superFoodY = Math.floor(Math.random(game.sizeY)*game.sizeY);
			if($("tb_" + superFoodX + "_" + superFoodY).style.backgroundColor != "") {superFood(); }
			else{
				if(("tb_" + superFoodX + "_" + superFoodY) == ("tb_" + game.fx + "_" + game.fy)){superFood(); return ;}
				if(n < 3){$("tb_" + superFoodX + "_" + superFoodY).style.backgroundColor = "#33cc33"; color = 0;}
				else if(3 <= n && n < 5){$("tb_" + superFoodX + "_" + superFoodY).style.backgroundColor = "#006600"; color = 1;}
				else if(5 <= n && n < 7){$("tb_" + superFoodX + "_" + superFoodY).style.backgroundColor = "#99ff66"; color = 2;}
				else if(7 <= n && n < 9){$("tb_" + superFoodX + "_" + superFoodY).style.backgroundColor = "#000000"; color = 3;}
				else {$("tb_" + superFoodX + "_" + superFoodY).style.backgroundColor = "#ffff00"; color = 4;}
				clearTimeout(disappearTime);
				superFood();
				// 一定时间后超级食物消失
				disappearTime = setTimeout(function(){
					$("tb_" + superFoodX + "_" + superFoodY).style.backgroundColor = "";
					superFoodX = superFoodY = null;
				},game.rate*120-game.rate*50);
			}
		},game.rate*120);
	}
	// 蛇吃食物
	function eat(ef) {
		// 吃普通食物
		if(ef == 1) {snake.push("tb_" + game.fx + "_" + game.fy); game.score += 10; food();}
		// 吃超级食物
		if(ef == 2) {
			if(color == 0) {game.score += 30;}
			else if(color == 1) {game.score -= 30;}
			else if(color == 2) {game.score += 50;}
			else if(color == 3) {game.score -= 50;}
			else {game.score += 100;}
			snake.push("tb_" + superFoodX + "_" + superFoodY);
			if(game.score < 0) {game.score = 0;}
			clearTimeout(disappearTime);
		}
		game.lengths += 1;
		$("scoreDiv").innerHTML = "得分："+game.score+"<br/><br/>长度："+game.lengths+"<br/><br/>最高分："+game.record;
	}
	// 游戏结束
	function result() {
		var next = "tb_" + game.x + "_" + game.y;
		if(game.x<0 || game.x>=game.sizeX || game.y<0 || game.y>=game.sizeY) {return true;}
		for(var i=0; i<snake.length; i++) {if(next == snake[i]) {return true;}}
		for(var i=0; i<barrers.length; i++) {if(next == barrers[i]) {return true;}}
		return false;
	}
	// 键盘控制
	function control(v) {
		var evt = v;
		game.dir = game.direction;
		if(37 <= evt.keyCode && evt.keyCode <= 40 && game.start){
			if(evt.keyCode == 37){game.dir=="right" ? game.direction = "right":game.direction = "left";}// 左
			if(evt.keyCode == 38){game.dir=="down" ? game.direction = "down" : game.direction = "up";}// 上
			if(evt.keyCode == 39){game.dir=="left" ? game.direction = "left" : game.direction = "right";}// 右
			if(evt.keyCode == 40){game.dir=="up" ? game.direction = "up" : game.direction = "down";}// 下
			if(game.dir != game.direction){clearTimeout(game.time); snakeMove(); }
		}
	}
	</script>
</head>
<body onload="init();" onkeyup="control(event);" >
<div class="backDiv">
	<div class="display">
		<div id="scoreDiv">分数：0</div><br/>
		<div id="prompt"></div>
	</div>
	<div id="gamePanel" ></div><br/>
	<div id="operator">
		选择关卡：<select id="pass" onchange="barrer();">
			<option value="1">关卡1</option>
			<option value="2">关卡2</option>
			<option value="3">关卡3</option>
			<option value="4">关卡4</option>
			<option value="5">关卡5</option>
		</select>&nbsp&nbsp
		速度：<select id="rate">
			<option value="500">慢</option>
			<option value="250">中</option>
			<option value="100">快</option>
		</select>&nbsp&nbsp
		<input type="button" id="start" value="开始" onclick="startGame();" />&nbsp&nbsp
		<input type="button" id="resets" value="重玩" onclick="init();" />
	</div>
	<div id="result"></div>
</div>
</body>
</html>

相关推荐:

  1. Nginx 常用命令大全【详解】
  2. Python代码实现 经纬度坐标转换为距离及角度【附代码】
  3. vue scoped css 深度选择器 父组件的样式将渗透到子组件中
  4. vue在linux上出现了Module not found: Error: Can’t resolve ‘@/views/xxxx’【解决办法】
  5. Javascript 编码规范有哪些【详细讲解】
  6. Axios post 传参的params 与data 的两种形式【详解】[vue]

人已赞赏
贪吃蛇
前端

vue操作dom元素的三种方法[代码分析]

2020-9-29 10:38:18

前端

Dhtmlx TreeGrid关键词定位功能实现

2020-10-13 6:33:48

0 条回复 A文章作者 M管理员
    暂无讨论，说说你的看法吧
猜你喜欢

Nginx 常用命令大全【详解】

0367

Python代码实现 经纬度坐标转换为距离及角度【附代码】

0850

vue scoped css 深度选择器 父组件的样式将渗透到子组件中

0137

vue在linux上出现了Module not found: Error: Can't resolve '@/views/xxxx'【解决办法】

04.8k

Javascript 编码规范有哪些【详细讲解】

0141

Axios post 传参的params 与data 的两种形式【详解】[vue]

05.5k
'); })();