js如何实现直播点击飘心效果的方法？这个问题可能是我们日常学习或工作经常见到的。希望通过这个问题能让你收获颇深。下面是小编给大家带来的参考内容，让我们一起来看看吧！
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具体内容如下
直播点击飘心效果
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, n, r) {
return n && t(e.prototype, n), 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, 0, t.width, 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
});
// 图片地址在此处更换 可换成你的图片
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 为赏桃的按钮
document.getElementsByClassName('journal-reward')[0].addEventListener('click', function() {
//随机飘动
stage.bubble(images[random.uniformDiscrete(0, images.length - 1)]);
}, false);
});
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http://scyanting.com/article/diiohh.html
