消除QQ表情小游戏

<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title>无标题文档</title>

<style>

*{

    padding:0px;

    margin:0px;

    font-family:"微软雅黑";}

body{

    background:#f1f1f1;

    font-family:"微软雅黑";

    font-size:16px;

    }

#info{

    text-align:center;

    }

#box{

    width: 800px;

    height: 450px;

    border: 1px solid #066;

    background: none repeat scroll 0% 0% #FFF;

    margin: 20px auto 0px;

    position: relative;

    top: 0px;

    left: 0px;

    }

#left{

    width:130px;

    border:1px solid #066;

    position:relative;

    top:-1px;

    left:-152px;

    background:#ffc;

    padding:10px;

    }

#left p{

    font-size:16px;

    line-height:30px;

    }

#qq{

    position:absolute;

    top:0px;

    left:0px;

    width:800px;

    height:450px;

    }

</style>

<script type="text/javascript" src="float.js">

</script>

<script type="text/javascript">

window.onload = function()

{

    var obtn = document.getElementById('info').getElementsByTagName("input")[0];

    var oqq = document.getElementById('qq');

    var obox = document.getElementById('box');

    var ascore = obox.getElementsByTagName('p');

    var score1 = score2 = 0;

    var speed = 1;

    var arr = ['img/icon1.png', 'img/icon2.png', 'img/icon3.png', 'img/icon4.png', 'img/icon5.png'];

    obtn.onclick = function ()

    {

        this.value = '正在游戏...';

        this.style.opacity = '1';

        this.disabled = 'disabled';

        fnqq();

        function fnqq()

        {

            creat();

            drop(fnqq);

        };

        function init()

        {

            obtn.value = '开始游戏';

            obtn.style.opacity = '1';

            obtn.disabled = '';

            oqq.innerHTML = '';

            speed = 1;

            score1 = score2 = 0;

        };

        function check()

        {

            if( score1 == 25 )

            {

                alert('恭喜！');

                init();

                return true;

            }

            if( score2 == 5 )

            {

                alert('真遗憾！')

                init();

                return true;

            }

        };

        function creat()

        {

            oqq.innerHTML = '<img style = "position: absolute; top: 0; left: ' + Math.round(Math.random() * 776) + 'px" src = "' + arr[Math.round(Math.random() * (arr.length - 1))]+ ' "/>';

        }

        function drop(fnend)

        {

            var icon = oqq.getElementsByTagName('img')[0];

            speed += 0.8;

            domove(icon,'top',speed,50,426,function()

            {

                oqq.innerHTML = '';

                score2++;

                ascore[1].innerHTML = '失分' + score2 + '分';

                shake(obox,'top',function()

                {

                    if(check())

                    {

                        return;

                    }

                    fnend&&fnend();

                })

            })

            icon.onmouseover = function ()

            {

                clearInterval(icon.timer);

                icon.src = 'img/icon6.png';

                shake(icon,'left',function()

                {

                    oqq.innerHTML = '';

                    score1++;

                    ascore[0].innerHTML = '得分' + score1 + '分';

                    if(check())

                    {

                        return;

                    }

                    fnend&&fnend();

                })

            }

        }

    }

}

</script>

</head>

<body>

<div id="info">

    <h2>你的鼠标有多快</h2>

    <p>游戏说明：点击“开始游戏”，随机掉下QQ表情，把鼠标划上去，千万别让它掉下去！！<br>

    划掉25个算你赢；掉下5个算你输 :)</p>

    <input type="button" value="开始游戏"></input>

</div>

<div id="box">

    <div id="left">

        <p>得分：0 分</p>

        <p>失分：0 分</p>

    </div>

    <div id="qq"></div>

</div>

</body>

</html>

function getstyle(obj,attr)

{

    return obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj)[attr];

}

function domove (obj,attr,step,frequency,target,endfn)

{

    step = parseInt(getstyle(obj,attr))<target?step:-step;

    clearInterval(obj.timer);

    obj.timer = setInterval( function ()

    {

        var speed = parseInt(getstyle(obj,attr)) + step;

        if(step>0&&speed>target||step<0&&speed<target)

        {

            speed = target;

        }

        obj.style[attr] = speed + 'px';

        if( speed == target )

        {

            clearInterval(obj.timer);

            endfn&&endfn();

        }

    },frequency);

};

function opacity(obj,step,target,frequency,endfn)

{

    var currentOpacity = getstyle(obj,'opacity') * 100;

    step = currentOpacity < target?step:-step;

    clearInterval(obj.opacity)

    obj.opacity = setInterval (function ()

    {

        currentOpacity = getstyle(obj,'opacity') *100;

        var nextOpacity = currentOpacity + step;

        if(step>0&& nextOpacity>target || step<0&& nextOpacity < target )

        {

            nextOpacity = target;

        }

    obj.style.opacity = nextOpacity/100;

    obj.style.filter = 'alpha(opacity:)' + nextOpacity +')';

    if(nextOpacity == target )

    {

        clearInterval(obj.opacity);

        endfn&&endfn();

    }

    },frequency);

};

function shake(obj,attr,endfn)

{

    if( obj.shaked ) { return;  }

    obj.shaked = true;

    var num = 0;

    var timer = null;

    var arr = [];

    var pos = parseInt(getstyle(obj,attr));

    for( var i = 20; i > 0; i-=2 )

    {

        arr.push(i,-i);

    }

    arr.push(0);

    clearInterval(obj.shake);

    obj.shake = setInterval(function ()

    {

        obj.style[attr] = pos + arr[num] +'px';

        num++;

        if(num==arr.length)

        {

            clearInterval(obj.shake);

            endfn&&endfn();

            obj.shaked = false;

        }

    },50);

};

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消除QQ表情小游戏

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