weapon.html

<html>
<head>
<meta name="viewport" content="user-scalable=0">
</head>
<body>


orientation : <span id="orient"></span>
 <script src="/socket.io/socket.io.js"></script>
<script>
  var socket = io.connect('/weapon');
  
  var xOrientation = null ;
  var fireStart = null ;

  window.addEventListener("deviceorientation", function(event) {
	  document.getElementById("orient").innerHTML = Math.round(event.beta) ;
	  xOrientation = Math.round(event.beta) ;
	}, true);

     
     window.onload = function() {
    	 
    	 document.ontouchstart = function()
    	 {
    		 fireStart = new Date().getTime() ;
    	 }
    	 
    	  document.ontouchend = function(){
    		  socket.emit('fire', {
    			  orientation :  xOrientation ,
    			  power : (new Date().getTime() - fireStart)
    		  });
    	  }
    	  
      }
      
          </script>
</body>
</html>