JS实现网页游戏中滑块响应鼠标点击移动效果

2019-11-20 11:26:56

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来源：转载

供稿：网友

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。

在线演示地址如下：

http://demo.VeVB.COm/js/2015/js-web-game-click-move-demo/

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("//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>

希望本文所述对大家JavaScript程序设计有所帮助。

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