Kesan khas bola lantunan rawak dihasilkan oleh jquery_jquery

Berikut ialah kod sumber:

Salin kod Kod adalah seperti berikut: HTML5 随机弹跳的小球 body{ font-family: 微软雅黑; } body,h1{ margin:0; } canvas{ display:block;margin-left: auto;margin-right: auto; border:1px solid #DDD; background: -webkit-linear-gradient(top, #222,#111); } HTML5特效 随机弹跳的小球 请使用支持HTML5的浏览器开打本页。 暂停 继续 增加小球 刷新 每次刷新页面的小球大小，颜色，运动路线，都是新的，可以点击上面各个按钮看看效果。 var jika = { diberikan: null, kandungan: null, data: { Julat jejari : [ 5 , 20 ] , Julat kelajuan: [-5, 5], scrollHeight : null , scrollWdith : null }, bola: [], iaitu: { kanvas: null }, fn: { createRandom : function ( startInt , endInt ) { // CreateRandom var iResult; iResult = startInt ( Math . floor ( Math . rawak () * ( endInt - startInt 1 )) ); kembalikan iResult }, init : fungsi ( ) { data scrollWidth = badan tatal data scrollHeight = scrollHeight nimo.ele.canvas = document.getElementById('canvas-that' 'this-com'); nimo.content = nimo.ele.canvas.getContext('2d'); nimo.ele.canvas.width = nimo.data.scrollWdith - 50; nimo.ele.canvas.height = nimo.data.scrollHeight - 100; }, addBall : fungsi ( ) { var aRandomColor = []; aRandomColor tolak ( nimo . fn . createRandom ( 0 , 255 ) ); aRandomColor tolak ( nimo . fn . createRandom ( 0 , 255 ) ); aRandomColor tolak ( nimo . fn . createRandom ( 0 , 255 ) ); var iRandomRadius = nimo.fn.creatRandom(nimo.data.radiusRange[0], nimo.data.radiusRange[1]); var oTempBall = { coordsX: nimo.fn.createRandom(iRandomRadius, nimo.ele.canvas.width - iRandomRadius), coordsY: nimo.fn.createRandom(iRandomRadius, nimo.ele.canvas.height - iRandomRadius), jejari: iRandomRadius, bgColor: 'rgba(' aRandomColor[0] ',' aRandomColor[1] ',' aRandomColor[2] ',0.5)' }; oTempBall.speedX = nimo.fn.createRandom(nimo.data.speedRange[0], nimo.data.speedRange[1]); jika ( oTempBall . speedX === 0 ) { oTempBall.speedX = 1 } jika ( oTempBall . speedY === 0 ) { oTempBall.speedY = 1 } oTempBall.speedY = nimo.fn.createRandom(nimo.data.speedRange[0], nimo.data.speedRange[1]); nimo.balls.push(atauTempBall) }, drawBall : fungsi ( bStatic ) { var i, iSize; kandungan nimo. clearRect ( 0, 0, nimo. ele. kanvas. lebar, nimo. ele. kanvas. ketinggian ) untuk ( var i = 0 , iSize = nimo . bola . panjang ; i &lt ; iSize ; i ) { var oTarger = nimo.balls[i]; kandungan bermulaPath ( ); kandungan nimo . nimo.content.fillStyle = oTarger.bgColor; nimo.content.fill(); jika ( ! bStatik ) { jika ( oTarger . coordsX oTarger . jejari &gt ;= nimo . ele . kanvas . lebar ) { oTarget kelajuanX = - ( Matematik . abs ( oTager . kelajuanX ) ) } jika ( oTarger . coordsX -- oTarger . radius &lt ;= 0 ) { oTarger.speedX = Math.abs(oTarger.speedX) } jika ( oTarger . coordsY -- oTager . radius &lt ;= 0 ) { oTarger.speedY = Math.abs(oTarger.speedY) } jika ( oTarger . coordsY oTarger . radius &gt ;= nimo . ele . kanvas . ketinggian ) { oTarget lajuY = -( Matematik . abs ( oTager . speedY ) ) } oTarger.coordsX = oTarger.coordsX oTarger.speedX; oTarger.coordsY = oTarger.coordsY oTarger.speedY; } } }, jalankan : fungsi ( ) { if.fn.drawBall(); nimo diberikan = setTimeout ( function ( ) { if.fn.drawBall(); nimo . diberi = setTimeout ( hujah . panggilan , 10 ) }, 10) }, berhenti : fungsi ( ) { clearTimeout ( nimo . whatyougave ) } } } tetingkap onload = fungsi ( ) { nimo.fn.init(); var i; untuk ( var i = 0 ; i &lt ; 10; i ) { if.fn.addBall(); } nimo.fn.run(); document.getElementById('stop-only' 'this-com').onclick = function() { nimo.fn.stop() } document.getElementById('run-keley' 'i-com').onclick = function() { nimo.fn.stop() nimo.fn.run() } document.getElementById('addBall-this-com').onclick = function() { var i; untuk ( var i = 0 ; i &lt ; 10; i ) { if.fn.addBall(); } nimo fn ( benar ); } }

Kesan khas bola lantunan rawak dihasilkan oleh jquery_jquery

HTML5特效 随机弹跳的小球

HTML5特效随机弹跳的小球