JS menyedari kesan pergerakan gelangsar sebagai tindak balas kepada klik tetikus dalam kemahiran web games

JS menyedari kesan pergerakan gelangsar sebagai tindak balas kepada klik tetikus dalam kemahiran web games_javascript

WBOY

Lepaskan： 2016-05-16 15:36:18

asal

1495 orang telah melayarinya

Contoh dalam artikel ini menerangkan pelaksanaan JS bagi kesan pergerakan gelangsar sebagai tindak balas kepada klik tetikus dalam permainan web. Kongsikan dengan semua orang untuk rujukan anda, butirannya adalah seperti berikut:

Ini ialah kesan yang menarik dalam permainan web Ia boleh melengkapkan tindakan berikut: menatal, menatal dalam 8 arah, mendapatkan koordinat tetikus dan mendapatkan kedudukan atas, bawah, kiri dan kanan objek. Anda boleh menambahnya sendiri. MoveReady dan ScrollReady dikomentari.

Alamat demo dalam talian adalah seperti berikut:

http://demo.jb51.net/js/2015/js-web-game-click-move-demo/

Kod khusus adalah seperti berikut:

<!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.jb51.net/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&#63;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&#63;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&#63;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&#63;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&#63;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&#63;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&#63;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&#63;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&#63;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&#63;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&#63;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>

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