var mouse={startX:0,stratY:0};//定义初试坐标
var innerElement = $(\'.buddycloud .stream\');//定义全局变量
var transformString = Modernizr.prefixed(\'transform\');//引用插件，自动添加前缀
var inputDown, inputMove, inputUp;//定义全局变量

if (window.Touch) {//触摸模式
	inputDown = "touchstart";
	inputMove = "touchmove";
	inputUp = "touchend";
	//console.log("1");
}
else {
	//console.log("2");
	inputDown = "mousedown";
	inputMove = "mousemove";
	inputUp = "mouseup";
}



function normalizedX(event){//判断模式
	return window.Touch ? event.originalEvent.touches[0].pageX : event.pageX;
}	

function normalizedY(event){
	return window.Touch ? event.originalEvent.touches[0].pageY : event.pageY;
}

$(document).bind(inputDown, function(event){
	
  event.preventDefault();//防冒泡
  if(event.button === 2) return true; // right-click判断按键
  mouse.startX = normalizedX(event);
  mouse.startY = normalizedY(event);
  $(document)
   .bind(inputMove, move)
   .one(inputUp, function(){ $(document).unbind(inputMove); });
});

function move(event){
	//console.log("99");
  event.preventDefault();
  var offsetX = normalizedX(event) - mouse.startX;
  var offsetY = normalizedY(event) - mouse.startY;
  if(event.shiftKey){
	 // console.log("999")
   offsetX = roundToMultiple(offsetX, 15);
   offsetY = roundToMultiple(offsetY, 15);
  }
 // console.log(offsetX)
  $(\'.buddycloud .stream\').css(transformString, \'rotateY(\'+offsetX+\'deg) rotateX(\'+-offsetY+\'deg)\');//写入
}
function roundToMultiple(number, multiple){
  var value = number/multiple
  ,   integer = Math.floor(value)
  ,   rest = value - integer;
  return rest > 0.5 ? (integer+1)*multiple : integer*multiple;
}