JS实现的随机乱撞的彩色圆球特效代码
日期：2014-05-18 浏览次数：20207 次
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>HTML5学习第5天[乱撞的球]</title>
<style>
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);
}
</style>
</head>
<body>
<h1>JS实现的随机乱撞的彩色圆球特效代码</h1>
<canvas id="canvas" >
</canvas>
<button id="stop">stop</button>
<button id="run">run</button>
<button id="addBall">addBall</button>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<script>
var nimo={
aniamted:null,
content:null,
data:{
radiusRange:[5,20],
speedRange:[-5,5],
scrollHeight:null,
scrollWdith:null
},
balls:[],
ele:{
canvas:null
},
fn:{
creatRandom:function(startInt,endInt){//生产随机数
var iResult;
iResult=startInt+(Math.floor(Math.random()*(endInt-startInt+1)));
return iResult
},
init:function(){
nimo.data.scrollWdith=document.body.scrollWidth;
nimo.data.scrollHeight=document.body.scrollHeight;
nimo.ele.canvas=document.getElementById('canvas');
nimo.content=nimo.ele.canvas.getContext('2d');
nimo.ele.canvas.width=nimo.data.scrollWdith-50;
nimo.ele.canvas.height=nimo.data.scrollHeight-100;
},
addBall:function(){
var aRandomColor=[];
aRandomColor.push(nimo.fn.creatRandom(0,255));
aRandomColor.push(nimo.fn.creatRandom(0,255));
aRandomColor.push(nimo.fn.creatRandom(0,255));
var iRandomRadius=nimo.fn.creatRandom(nimo.data.radiusRange[0],nimo.data.radiusRange[1]);
var oTempBall={
coordsX:nimo.fn.creatRandom(iRandomRadius,nimo.ele.canvas.width-iRandomRadius),
coordsY:nimo.fn.creatRandom(iRandomRadius,nimo.ele.canvas.height-iRandomRadius),
radius:iRandomRadius,
bgColor:'rgba('+aRandomColor[0]+','+aRandomColor[1]+','+aRandomColor[2]+',0.5)'
};
oTempBall.speedX=nimo.fn.creatRandom(nimo.data.speedRange[0],nimo.data.speedRange[1]);
if(oTempBall.speedX===0){
oTempBall.speedX=1
}
if(oTempBall.speedY===0){
oTempBall.speedY=1
}
oTempBall.speedY=nimo.fn.creatRandom(nimo.data.speedRange[0],nimo.data.speedRange[1]);
nimo.balls.push(oTempBall)
},
drawBall:function(bStatic){
var i,iSize;
nimo.content.clearRect(0,0,nimo.ele.canvas.width,nimo.ele.canvas.height)
for(var i=0,iSize=nimo.balls.length;i<iSize;i++){<
<html lang="en">
<head>
<meta charset="UTF-8">
<title>HTML5学习第5天[乱撞的球]</title>
<style>
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);
}
</style>
</head>
<body>
<h1>JS实现的随机乱撞的彩色圆球特效代码</h1>
<canvas id="canvas" >
</canvas>
<button id="stop">stop</button>
<button id="run">run</button>
<button id="addBall">addBall</button>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<script>
var nimo={
aniamted:null,
content:null,
data:{
radiusRange:[5,20],
speedRange:[-5,5],
scrollHeight:null,
scrollWdith:null
},
balls:[],
ele:{
canvas:null
},
fn:{
creatRandom:function(startInt,endInt){//生产随机数
var iResult;
iResult=startInt+(Math.floor(Math.random()*(endInt-startInt+1)));
return iResult
},
init:function(){
nimo.data.scrollWdith=document.body.scrollWidth;
nimo.data.scrollHeight=document.body.scrollHeight;
nimo.ele.canvas=document.getElementById('canvas');
nimo.content=nimo.ele.canvas.getContext('2d');
nimo.ele.canvas.width=nimo.data.scrollWdith-50;
nimo.ele.canvas.height=nimo.data.scrollHeight-100;
},
addBall:function(){
var aRandomColor=[];
aRandomColor.push(nimo.fn.creatRandom(0,255));
aRandomColor.push(nimo.fn.creatRandom(0,255));
aRandomColor.push(nimo.fn.creatRandom(0,255));
var iRandomRadius=nimo.fn.creatRandom(nimo.data.radiusRange[0],nimo.data.radiusRange[1]);
var oTempBall={
coordsX:nimo.fn.creatRandom(iRandomRadius,nimo.ele.canvas.width-iRandomRadius),
coordsY:nimo.fn.creatRandom(iRandomRadius,nimo.ele.canvas.height-iRandomRadius),
radius:iRandomRadius,
bgColor:'rgba('+aRandomColor[0]+','+aRandomColor[1]+','+aRandomColor[2]+',0.5)'
};
oTempBall.speedX=nimo.fn.creatRandom(nimo.data.speedRange[0],nimo.data.speedRange[1]);
if(oTempBall.speedX===0){
oTempBall.speedX=1
}
if(oTempBall.speedY===0){
oTempBall.speedY=1
}
oTempBall.speedY=nimo.fn.creatRandom(nimo.data.speedRange[0],nimo.data.speedRange[1]);
nimo.balls.push(oTempBall)
},
drawBall:function(bStatic){
var i,iSize;
nimo.content.clearRect(0,0,nimo.ele.canvas.width,nimo.ele.canvas.height)
for(var i=0,iSize=nimo.balls.length;i<iSize;i++){<
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