js實現直播點選飄心效果
阿新 • • 發佈：2020-08-20
本文例項為大家分享了js實現直播點選飄心效果的具體程式碼，供大家參考，具體內容如下
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>直播點選飄心效果</title>
<style type="text/css">
html,body {
height: 100%;
position: relative;
width: 100%;
}
canvas {
display: block;
position: absolute;
bottom: 100px;
right: -24px;
z-index: 20;
cursor: pointer;
-webkit-tap-highlight-color: rgba(0,0);
}
.journal-reward {
position: absolute;
bottom: 70px;
right: 20px;
height: 60px;
width: 60px;
display: block;
z-index: 21;
cursor: pointer;
}
</style>
</head>
<body>
<img src="img/reward.png" class="journal-reward" />
<script src="jquery.min.js"></script>
<script src="flutter-hearts-zmt.js" type="text/javascript" charset="utf-8"></script>
</body>
</html>
flutter-hearts-zmt.js
! function(t,e) {
"object" == typeof exports && "undefined" != typeof module ? module.exports = e() : "function" == typeof define && define.amd ? define(e) : t.BubbleHearts = e()
}(this,function() {
"use strict";
function t(t,n,r) {
var i = e.uniformDiscrete(89,91) / 100,o = 1 - i,u = (e.uniformDiscrete(45,60) + e.uniformDiscrete(45,60)) / 100,a = function(t) {
return t > i ? Math.max(((1 - t) / o).toFixed(2),.1) * u : u
},c = e.uniformDiscrete(-30,30),f = function(t) {
return c
},h = 10,s = n.width / 2 + e.uniformDiscrete(-h,h),d = (n.width - Math.sqrt(Math.pow(t.width,2) + Math.pow(t.height,2))) / 2 - h,l = e.uniformDiscrete(.8 * d,d) * (e.uniformDiscrete(0,1) ? 1 : -1),m = e.uniformDiscrete(250,400),w = function(t) {
return t > i ? s : s + l * Math.sin(m * (i - t) * Math.PI / 180)
},v = function(e) {
return t.height / 2 + (n.height - t.height / 2) * e
},p = e.uniformDiscrete(14,18) / 100,g = function(t) {
return t > p ? 1 : 1 - ((p - t) / p).toFixed(2)
};
return function(e) {
if(!(e >= 0)) return !0;
r.save();
var n = a(e),i = f(e),o = w(e),u = v(e);
r.translate(o,u),r.scale(n,n),r.rotate(i * Math.PI / 180),r.globalAlpha = g(e),r.drawImage(t,-t.width / 2,-t.height / 2,t.width,t.height),r.restore()
}
}
var e = function(t) {
var e = t,n = Math.floor,r = Math.random;
return t.uniform = function(t,e) {
return t + (e - t) * r()
},t.uniformDiscrete = function(t,r) {
return t + n((r - t + 1) * e.uniform(0,1))
},t
}({}),n = function(t,e) {
if(!(t instanceof e)) throw new TypeError("Cannot call a class as a function")
},r = function() {
function t(t,e) {
for(var n = 0; n < e.length; n++) {
var r = e[n];
r.enumerable = r.enumerable || !1,r.configurable = !0,"value" in r && (r.writable = !0),Object.defineProperty(t,r.key,r)
}
}
return function(e,r) {
return n && t(e.prototype,r && t(e,r),e
}
}(),i = window.requestAnimationFrame || window.webkitRequestAnimationFrame || function(t) {
return setTimeout(t,16)
},o = function() {
function o() {
n(this,o);
var t = this.canvas = document.createElement("canvas"),e = this.context = t.getContext("2d"),r = this._children = [],u = function n() {
i(n),e.clearRect(0,t.height);
for(var o = 0,u = r.length; o < u;) {
var a = r[o];
a.render.call(null,(a.timestamp + a.duration - new Date) / a.duration) ? (r.splice(o,1),u--) : o++
}
};
i(u)
}
return r(o,[{
key: "bubble",value: function(n) {
var r = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : e.uniformDiscrete(2400,3600),i = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : t(n,this.canvas,this.context);
return this._children.push({
render: i,duration: r,timestamp: +new Date
}),this
}
}]),o
}();
return o
});
// 圖片地址在此處更換 可換成你的圖片
var assets = [
'img/1.png','img/2.png','img/3.png','img/4.png','img/5.png',];
assets.forEach(function(src,index) {
assets[index] = new Promise(function(resolve) {
var img = new Image;
img.onload = resolve.bind(null,img);
img.src = src;
});
});
Promise.all(assets).then(function(images) {
var random = {
uniform: function(min,max) {
return min + (max - min) * Math.random();
},uniformDiscrete: function(i,j) {
return i + Math.floor((j - i + 1) * random.uniform(0,1));
},};
var stage = new BubbleHearts();
var canvas = stage.canvas;
canvas.width = 170;
canvas.height = 300;
canvas.style['width'] = '170px';
canvas.style['height'] = '300px';
document.body.appendChild(canvas);
//journal-reward 為賞桃的按鈕
document.getElementsByClassName('journal-reward')[0].addEventListener('click',function() {
//隨機飄動
stage.bubble(images[random.uniformDiscrete(0,images.length - 1)]);
},false);
});以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。