网页坦克大战小游戏源码，坦克页面小游戏，经典90版html坦克大战游戏代码。
演示地址http://www.bokequ.com/show/youxi/1/
电脑键盘操作说明：
玩家1：wasd上左下右，space(空格键)射击;
玩家2：方向键，enter射击。n下一关，p上一关。
html页面代码
<!DOCTYPE html>
<html lang="zh" class="no-js demo-1">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="js/jquery.min.js"></script>
<script src="js/Helper.js"></script>
<script src="js/keyboard.js"></script>
<script src="js/const.js"></script>
<script src="js/level.js"></script>
<script src="js/crackAnimation.js"></script>
<script src="js/prop.js"></script>
<script src="js/bullet.js"></script>
<script src="js/tank.js"></script>
<script src="js/num.js"></script>
<script src="js/menu.js"></script>
<script src="js/map.js"></script>
<script src="js/Collision.js"></script>
<script src="js/stage.js"></script>
<script src="js/main.js"></script>
<link rel="stylesheet" type="text/css" href="css/default.css" />
<style type="text/css">
#canvasDiv canvas{
position:absolute;
}
</style>
</head>
<body>
<div class="container">
<head>
<h3>操作说明：玩家1：wasd上左下右，space(空格键)射击；玩家2：方向键，enter射击。n下一关，p上一关。</h3>
</head>
<div class="main clearfix">
<div id="canvasDiv" >
<canvas id="wallCanvas" ></canvas>
<canvas id="tankCanvas" ></canvas>
<canvas id="grassCanvas" ></canvas>
<canvas id="overCanvas" ></canvas>
<canvas id="stageCanvas" ></canvas>
</div>
</div>
</div><!-- /container -->
</body>
</html>
部分js代码
var Stage = function(context,l){
this.ctx = context;
this.ctx.fillStyle = "#7f7f7f";
this.drawHeigth = 15;
this.level = l;
this.temp = 0;
this.dir = 1; //中间切换的方向，1：合上，2：展开
this.isReady = false;//标识地图是否已经画好
this.levelNum = new Num(context);
this.init = function(level){
this.dir = 1;
this.isReady = false;
this.level = level;
this.temp = 0;
};
this.draw = function(){
if(this.dir == 1){
//temp = 15*15 灰色屏幕已经画完
if(this.temp == 225){
//78,14为STAGE字样在图片资源中的宽和高，194,208为canvas中的位置
this.ctx.drawImage(RESOURCE_IMAGE, POS["stageLevel"][0], POS["stageLevel"][1], 78, 14, 194, 208, 78, 14);
//14为数字的宽和高，308, 208为canvas中的位置
this.levelNum.draw(this.level,308, 208);
//this.ctx.drawImage(RESOURCE_IMAGE,POS["num"][0]+this.level*14,POS["num"][1],14, 14,308, 208,14, 14);
//绘制地图,调用main里面的方法
initMap();
}else if(this.temp == 225 + 600){
//600即调用了600/15次，主要用来停顿
this.temp = 225;
this.dir = -1;
START_AUDIO.play();
}else{
this.ctx.fillRect(0, this.temp, 512, this.drawHeigth);
this.ctx.fillRect(0, 448 - this.temp - this.drawHeigth , 512, this.drawHeigth);
}
}else{
if(this.temp >= 0){
this.ctx.clearRect(0, this.temp , 512, this.drawHeigth);
this.ctx.clearRect(0, 448 - this.temp - this.drawHeigth, 512, this.drawHeigth);
}else{
this.isReady = true;
}
}
this.temp += this.drawHeigth * this.dir;
};
};
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