贪吃蛇html游戏代码

贪吃蛇html游戏代码拿来即用!代码如下<!DOCTYPE html>html> <head> <meta charset="UTF-8"> <title>贪吃蛇</title> <style> #map {width: 400px;height: 400px;...................

王hil

14875人浏览 · 2022-03-23 14:18:12

王hil · 2022-03-23 14:18:12 发布

拿来即用!

1代码如下

<!DOCTYPE html>
<html>
 
	<head>
		<meta charset="UTF-8">
		<title>贪吃蛇</title>
		<style>
			#map {
				width: 400px;
				height: 400px;
				border: 1px solid black;
			}
			/*地图的样式*/
			
			.divMap {
				width: 18px;
				height: 18px;
				margin: 1px;
				background-color: yellow;
				float: left;
			}
			/*//蛇身的样式*/
			
			.divSnake {
				width: 18px;
				height: 18px;
				margin: 1px;
				background-color: red;
				float: left;
			}
			/*//食物的样式*/
			
			.divFood {
				width: 18px;
				height: 18px;
				margin: 1px;
				background-color: green;
				float: left;
			}
		</style>
		<script>
			var mapX = 20,
				mapY = 20; //地图边界，横向和纵向的div小格数量
			var arrMap = new Array(); //地图数组
			var snakeX = [4, 5, 6],
				snakeY = [2, 2, 2]; //蛇身
			var foodX = 9,
				foodY = 3; //食物
			var keyCode = 39; //蛇身移动方向，默认向右
			//创建地图
			function createMap() {
				var map = document.getElementById("map");
				for(y = 0; y < mapY; y++) {
					//第一层循环，y表示纵向轴
					arrMap[y] = new Array();
					for(x = 0; x < mapX; x++) {
						//第二层循环，x表示横向轴
						var div = document.createElement("div"); //div小格
						div.className = "divMap"; //初始化样式
						arrMap[y][x] = div; //将小格放入地图数组
						map.appendChild(div); //页面绘制
					}
				}
			}
 
			//创建蛇身 
			function createSnake() {
				var result; //判斷是否需要重新生成食物
				//改变地图中一串连续的div的底色
				for(i = 0; i < snakeX.length; i++) {
					arrMap[snakeY[i]][snakeX[i]].className = "divSnake";
 
				}
			}
 
			//创建食物
			function createFood() {
				result = false;
				do {
					foodX = parseInt(Math.random() * mapX);
					foodY = parseInt(Math.random() * mapY);
					//判断食物不能出现在蛇身上
					for(i = 0; i < snakeX.length; i++) {
						if(snakeX[i] == foodX && snakeY[i] == foodY) {
							result = true; //重叠了，需要从新生成一个食物
							break;
						}
 
					}
				} while (result);
 
				arrMap[foodY][foodX].className = "divFood"
			}
 
			//清除蛇身
			function claerSnake() {
				for(i = 0; i < snakeX.length; i++) {
					arrMap[snakeY[i]][snakeX[i]].className = "divMap";
				}
			}
 
			//蛇身运动
			function snakeMove() {
				//清除蛇身
				claerSnake();
 
				for(i = 0; i < snakeX.length - 1; i++) {
					snakeX[i] = snakeX[i + 1];
					snakeY[i] = snakeY[i + 1];
 
				}
 
				//				snakeX[snakeX.length - 1]++; //向右移动
				//每次移动。舌头增加1格，keyCode匹配键盘方向键
				switch(keyCode) {
					case 37: //向右
						snakeX[snakeX.length - 1]--;
						break;
					case 38: //向上
						snakeY[snakeY.length - 1]--;
						break;
					case 39: //向右
						snakeX[snakeX.length - 1]++;
						break;
					case 40: //向上
						snakeY[snakeY.length - 1]++;
						break;
				}
 
				//吃掉食物
				if(snakeX[snakeX.length - 1] == foodX && snakeY[snakeY.length - 1] == foodY) {
					//吃到食物
					snakeX[snakeX.length] = snakeX[snakeX.length - 1];
					snakeY[snakeY.length] = snakeY[snakeY.length - 1];
					//重新排列
					for(i = snakeX.length - 1; i > 0; i--) {
						snakeX[i] = snakeX[i - 1];
						snakeY[i] = snakeY[i - 1];
					}
					createFood(); //重新生成下一個食物
 
				}
				//超出游戲邊框
				if(snakeX[snakeX.length - 1] < 0 ||
					snakeX[snakeX.length - 1] > mapX - 1 ||
					snakeY[snakeY.length - 1] < 0 ||
					snakeY[snakeY.length - 1] > mapY - 1) {
					clearInterval(move); //停止移動
					alert("游戲結束");
					return;
				}
 
				createSnake(); //创建蛇身
			}
 
			function keyDown() {
				var newKey = event.keyCode; //键盘按键
				if(keyCode == 37 && newKey == 39 ||
					keyCode == 39 && newKey == 37 ||
					keyCode == 38 && newKey == 40 ||
					keyCode == 40 && newKey == 38
				) {
					//禁止掉头
					return;
				} else if(newKey >= 37 && newKey <= 40) {
					//用户按了某个方向键
					keyCode = newKey;
				} else {
					//其他按键
				}
 
			}
			//运行
			window.onload = function() {
				createMap(); //创建地图
				createSnake(); //蛇身
				createFood(); //创建食物
				move = setInterval("snakeMove()", 200); //每个两百秒蛇身移动
				document.onkeydown = keyDown; //捕获方向键
			}
		</script>
	</head>
 
	<body>
		<div id="map"></div>
	</body>
 
</html>

2效果