JS实现网页游戏中滑块响应鼠标点击移动效果

2024-05-06 16:24:41

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这篇文章主要介绍了JS实现网页游戏中滑块响应鼠标点击移动效果,涉及JavaScript针对页面鼠标事件、滚动事件及元素属性等相关操作技巧,具有一定参考借鉴价值,需要的朋友可以参考下

本文实例讲述了JS实现网页游戏中滑块响应鼠标点击移动效果。分享给大家供大家参考，具体如下：

这是网页游戏中的一个有趣效果，可以完成以下几个动作：滚动、scroll 8个方向、鼠标坐标获娶对象上下左右位置获取，大家可以自己添加、MoveReady和ScrollReady两个注释掉了取消注释后防止鼠标连续点击效果叠加。

具体代码如下：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"><head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>网页游戏中的一个有趣效果</title>

<style type="text/css">

html,body,div,span,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,address,big,cite,del,em,img,ins,small,strong,sub,sup,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,tbody,tfoot,tr,th,td{margin: 0;padding: 0;border: 0;outline: 0;font-size: 100%;vertical-align: baseline;background: transparent;}

body{font:12px/24px "宋体";background:#fff;color:#333;}

ol, ul{list-style:none;}

blockquote, q {quotes:none;}

blockquote:before, blockquote:after,

q:before, q:after {content: '';content:none;}

:focus {outline:0;}

ins {text-decoration:none;}

del {text-decoration:line-through;}

table {border-collapse:collapse;border-spacing:0;}

label{cursor:pointer}

input[type="button"]{cursor:pointer}

button{cursor:pointer}

strong{font-weight:normal;}

em{font-style:normal}

a{text-decoration:none;color:#f60}

a:hover{text-decoration:underline;}

.block{width:200px;height:200px;background:#e63;position:absolute;left:50%;top:50%;border:3px solid #fdd;overflow:hidden;}

.moveBlock{width:1900px;height:2728px;background:url("http://files.vevb.com/file_images/article/201510/2015101993654799.jpg") left top;}

</style>

<script type="text/javascript">

var ie = ! -[1, ], myDate = new Date();

function Sin(x,v) {

var y = Math.round(Math.sin(Math.PI*x/180)*100)/100;

return ie?y*v*3:y*v;

}

/*返回数组序号*/

Num = function(e, eles) {

for (var i = 0; i < eles.length; i++) {

if (eles[i] == e) { return i; }

}

}

/*字符串判定*/

GetCur = function(Str, cur) {

var str = new RegExp(cur, "gi")

return str.test(Str);

}

/*DOM构造*/

var div=function(id){return new HtmlEle.init(id);}

HtmlEle={

init:function(id){

this[0]=id==Object?id:document.getElementById(id);

return this;

},

css:function(s){

for(var i in s){

this[0].style[i]=s[i];

}

},

Obj:function(){

var obj=this[0];

var objTop=obj.offsetTop,objLeft=obj.offsetLeft,objWidth=obj.offsetWidth,objHeight=obj.offsetHeight;

return {top:objTop,right:objLeft+objWidth,bottom:objTop+objHeight,left:objLeft,width:objWidth,height:objHeight}

},

MoveReady:true,

Move:function(s,point){

var obj=this[0],n=0,v=s,main=this,v2=90;

if(this.MoveReady==true){

//main.MoveReady=false;

var Top=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.style.top=P-m+"px"}else{obj.style.top=P-s+"px";clearInterval(myMove);main.MoveReady=true;};

}

var Right=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.style.left=P+m+"px"}else{obj.style.right=P+s+"px";clearInterval(myMove);main.MoveReady=true;};

}

var Bottom=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.style.top=P+m+"px"}else{obj.style.top=P+s+"px";clearInterval(myMove);main.MoveReady=true;};

}

var Left=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.style.left=P-m+"px"}else{obj.style.left=P-s+"px";clearInterval(myMove);main.MoveReady=true;};

}

switch(point){

case "top" : var P=obj.offsetTop,Point=Top;break;

case "right" : var P=obj.offsetLeft,Point=Right;break;

case "bottom" : var P=obj.offsetTop,Point=Bottom;break;

case "left" : var P=obj.offsetLeft,Point=Left;break;

}

var myMove=setInterval(Point,5)

}

},

ScrollReady:true,

Scroll:function(s,point){

var obj=this[0],n=0,v=s,main=this,v2=90;

if(this.ScrollReady==true){

//main.ScrollReady=false;

var Top=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.scrollTop=P+m}else{obj.scrollTop=P+s;clearInterval(myMove);main.ScrollReady=true;};

}

var Right=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.scrollLeft=P-m}else{obj.scrollLeft=P-s;clearInterval(myMove);main.ScrollReady=true;};

}

var Bottom=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.scrollTop=P-m}else{obj.scrollTop=P-s;clearInterval(myMove);main.ScrollReady=true;};

}

var Left=function(){

n=n<v2?n+1:n;

var m=Sin(n,v);

if(m<Math.abs(s)){obj.scrollLeft=P+m}else{obj.scrollLeft=P+s;clearInterval(myMove);main.ScrollReady=true;};

}

switch(point){

case "top" : var P=obj.scrollTop,Point=Top;break;

case "right" : var P=obj.scrollLeft,Point=Right;break;

case "bottom" : var P=obj.scrollTop,Point=Bottom;break;

case "left" : var P=obj.scrollLeft,Point=Left;break;

}

var myMove=setInterval(Point,5)

}

},

Mouse:function(e,f){

switch(e){

case "click" : this[0].onclick=f;break;

case "dbclick" : this[0].ondblclick=f;break;

case "over" : this[0].onmouseover=f;break;

case "out" : this[0].onmouseout=f;break;

}

},

MouseSite:function(e){

var e=e?e:window.event;

return {x:e.clientX,y:e.clientY}

}

}

HtmlEle.init.prototype=HtmlEle;

</script>

</head>

<body>

<div class="block" id="moveBlock">

<div class="moveBlock"></div>

</div>

<script type="text/javascript">

var sBlock=new div("moveBlock");

document.onclick=function(){

var site=sBlock.MouseSite(arguments[0]),s=200,b=30;

var objSite=sBlock.Obj();

if(objSite.left<site.x && objSite.left+objSite.width/2-b>site.x && objSite.top<site.y &&objSite.bottom>site.y)

sBlock.Scroll(s,"left");

if(objSite.right>site.x && objSite.right-objSite.width/2+b<site.x && objSite.top<site.y &&objSite.bottom>site.y)

sBlock.Scroll(s,"right");

if(objSite.top<site.y && objSite.top+objSite.height/2-b>site.y && objSite.left<site.x && objSite.right>site.x)

sBlock.Scroll(s,"top");

if(objSite.bottom>site.y && objSite.bottom-objSite.height/2+b<site.y)

sBlock.Scroll(s,"bottom");

if(objSite.left>site.x)

sBlock.Move(s,"left");

if(objSite.right<site.x)

sBlock.Move(s,"right");

if(objSite.top>site.y)

sBlock.Move(s,"top");

if(objSite.bottom<site.y)

sBlock.Move(s,"bottom");

}

window.onload=function(){sBlock[0].scrollTop=0;sBlock[0].scrollLeft=0;}

</script>

</body>

</html>