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韩老师的乌龟抓鸡

2024-07-07 18:01:45   227人阅读

判断两个图片接近的时候用了绝对值的算法

 

  1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  2 <html>
  3  <head>
  4   <title> 004 </title>
  5 <script type="text/javascript" language="javascript">
  6 
  7 
  8 function move(obj)
  9 {
 10 var wugui_height=59;
 11 var wugui_width=61;
 12 var cock_height=40;
 13 var cock_width=39;
 14 var wugui=document.getElementByIdx_x("wugui");
 15 if(window.event)
 16 {
 17 key=obj.keyCode;
 18 }
 19 
 20 var wugui_top=wugui.style.top;
 21 var wugui_left=wugui.style.left;
 22 
 23 
 24 wugui_top=parseInt(wugui_top.substring(0,wugui_top.indexOf("p")));
 25 wugui_left=parseInt(wugui_left.substring(0,wugui_left.indexOf("p")));
 26 
 27 
 28 if(obj.value=="down"||key==83)
 29 {wugui_top=wugui_top+10;
 30 wugui.style.top=(wugui_top+10)+"px";
 31 }
 32 else if(obj.value=="up"||key==87)
 33 {wugui_top=wugui_top-10;
 34 wugui.style.top=(wugui_top-10)+"px";
 35 }
 36 else if(obj.value=="left"||key==65)
 37 {wugui_left=wugui_left-10;
 38 wugui.style.left=(wugui_left-10)+"px";
 39 }
 40 else if(obj.value=="right"||key==68)
 41 {wugui_left=wugui_left+10;
 42 wugui.style.left=(wugui_left+10)+"px";
 43 }
 44 var cock=document.getElementByIdx_x("cock");
 45 
 46 var cock_top=cock.style.top;
 47 var cock_left=cock.style.left;
 48 
 49 cock_top=parseInt(cock_top.substring(0,cock_top.indexOf("p")));
 50 cock_left=parseInt(cock_left.substring(0,cock_left.indexOf("p")));
 51 
 52 x=Math.abs(cock_top-wugui_top);
 53 y=Math.abs(cock_left-wugui_left);
 54 
 55 if(x<60&&y<59)
 56 {
 57 alert("hahah");
 58 wugui.style.top=220+"px";
 59 wugui.style.left=220+"px";
 60 
 61 }
 62 
 63 }
 64 
 65 function test()
 66 {
 67 var t=document.getElementByIdx_x("td");
 68 
 69 }
 70 
 71 
 72 
 73 </script>
 74  </head>
 75 113  </body>
114 </html>

 


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