Complete code for developing a balloon game with javascript and css3

This article mainly introduces the complete code for developing a balloon game with javascript and css3. It has a certain reference value. Now I share it with you. Friends in need can refer to it.

This is a simple But the impressive mini-game, the implementation code of the balloon-playing mini-game, is mainly based on js and css3, and draws balloons based on css3. Please refer to this article for the specific implementation code

#Effect knowledge points:

css3 balloon drawing, custom attribute application, random array, DOM element operation, advanced callback function and parameter retransmission, dynamic layout, mouse events, timer application, CSS3 new Add styles, etc.

css code is as follows:

<style>
{margin:0;padding:0;}
body{background:#434343;overflow:hidden}
.balloon{
position:absolute;
left:0;
top:0;
margin:auto;
width:160px;
height:160px;
圆角: 左上 右上 右下 左下 
/
css3旋转 顺时针旋转45度 
/
background:#faf9f9;
x轴的位置 y轴的位置 影子扩散程度 模糊度 颜色 
/
}
.balloon:after{
伪元素的内容 
/
display:block;
position:absolute;

Because the balloon is rotating, the right bottom is actually the lower right corner*/

right:0px;
width:0px;
height:0px;
border:8px solid #dbbdbd;
border-top-color:transparent;
border-bottom-color:transparent;
border-left-color:transparent;
transform:rotate(45deg);
border-radius:16px;
}
#wrap{
width:200px;
height:200px;
background:red;
}
</style>

The javascript code is as follows:

<script>
  var num = 10; // 声明遍历num 为p的数量
  //var oBody = document.querySelector(&#39;body&#39;); //h5 api 获取元素的方法
  var oBody=document.documentElement || document.body; //body获取兼容性写法
  var wW=window.innerWidth; //获取浏览器窗口的宽度
  var wH=window.innerHeight; //获取浏览器窗口高度
  var timer=null;      //初始化定时器变量
  init(num);
  function init(num){
    for(var i=0;i<num;i++){ //for循环 循环加工厂
      var randomL=Math.random()*wW;    // 随机left范围
        randomL=Math.min(wW-160,randomL); //规范left位置
      var balloon = document.createElement(&#39;p&#39;); //用js生成标签
      balloon.className=&#39;balloon&#39;; //给创建的p元素设置类名
      balloon.style.left=randomL+&#39;px&#39;; //改变元素的样式中的left的值
      balloon.style.top=wH+&#39;px&#39;;
      balloon.speed=Math.random()*5+1; //自定义属性 创建元素的时候添加
      oBody.appendChild(balloon); //body中添加 元素对象
    }
  }
  timer=setInterval(function(){
    var oBall=document.querySelectorAll(&#39;.balloon&#39;);//获取页面所有的气球
    for(var i=0,len=oBall.length;i<len;i++){
      oBall[i].style.top = oBall[i].offsetTop-oBall[i].speed+&#39;px&#39;;
      oBall[i].onclick=function(){ //谁 触发了什么 谁做了什么事情
        crash(this,function(xxx){
          clearInterval(xxx.timer); //清除动画定时器
          xxx.parentNode.removeChild(xxx);
        });
        //this.parentNode.removeChild(this);  
        init(1);
      }
    }
  },30);
  function crash(ele,cb){  //被点击之后撒气效果
    ele.timeouter=setTimeout(function(){
        cb&&cb(ele);
    },500)
    ele.timer=setInterval(function(){
      ele.speed++; //加速度自增
      ele.style.top=ele.offsetTop-ele.speed+&#39;px&#39;; //加速逃离
      ele.style.width=ele.offsetWidth-10+&#39;px&#39;; //宽度减少
      ele.style.height=ele.offsetHeight-10+&#39;px&#39;; //高度减少
    },30)
  }
</script>

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