js实现大风车和泡泡交互动画 效果
代码语言:html
所属分类:动画
代码描述:js实现大风车和泡泡交互动画 效果
下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<style>
* {
font-family: 'arial black', Helvetica, verdana, monospace, sans-serif;
letter-spacing: 0.2rem;
margin: 0;
padding: 0;
color: #FFF;
overflow: hidden;
}
body {
position: relative;
}
canvas#canvas {
display: block;
background: #ABE7FF;
}
</style>
</head>
<body translate="no">
<canvas id="canvas">Canvas not supported.</canvas>
<script>
/*
* File Name / pinwheel.js
* Created Date / Aug 14, 2020
* Aurhor / Toshiya Marukubo
* Twitter / https://twitter.com/toshiyamarukubo
*/
(function () {
'use strict';
window.addEventListener('load', function () {
var canvas = document.getElementById('canvas');
if (!canvas || !canvas.getContext) {
return false;
}
/********************
Random Number
********************/
function rand(min, max) {
return Math.floor(Math.random() * (max - min + 1) + min);
}
/********************
Var
********************/
var ctx = canvas.getContext('2d');
var X = canvas.width = window.innerWidth;
var Y = canvas.height = window.innerHeight;
var mouseX = null;
var mouseY = null;
var bubbles = [];
var bubbleNum = 150;
var shapes = [];
var rad = Math.PI * 2 / 4;
var style = {
black: 'black',
white: 'white',
lineWidth: 4 };
if (X < 768) {
bubbleNum = 100;
}
/********************
Animation
********************/
window.requestAnimationFrame =
window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function (cb) {
setTimeout(cb, 17);
};
/********************
Bubble
********************/
function Bubble(ctx, x, y) {
this.ctx = ctx;
this.init(x, y);
}
Bubble.prototype.init = function (x, y) {
this.x = x;
this.y = y;
this.r = rand(20, 50);
this.ga = Math.random() * Math.random() * Math.random();
this.v = {
x: rand(-1, 1) * Math.random() * Math.random(),
y: Math.random() };
this.random = Math.random();
this.a = rand(0, 360);
this.rad = this.a * Math.PI / 180;
this.as = rand(0, 360) * Math.PI / 180;
};
Bubble.prototype.dra.........完整代码请登录后点击上方下载按钮下载查看
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