Flash/Flex学习笔记(15)：FMS 3.5之远程共享对象(Remote Shared Object)

var nc:NetConnection = new NetConnection();
var so:SharedObject;

nc.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);

// sharedBall是舞台上的一个小球实例
sharedBall.addEventListener(MouseEvent.MOUSE_DOWN, pickup);
sharedBall.addEventListener(MouseEvent.MOUSE_UP, place);
sharedBall.addEventListener(MouseEvent.MOUSE_MOVE, moveIt);
sharedBall.addEventListener(MouseEvent.MOUSE_OVER,mouseOverHandler);
sharedBall.addEventListener(MouseEvent.MOUSE_OUT,mouseOutHandler);

function mouseOverHandler(e:MouseEvent) {
	Mouse.cursor=MouseCursor.HAND;
}

function mouseOutHandler(e:MouseEvent) {
	Mouse.cursor=MouseCursor.ARROW;
}

nc.connect("rtmp://localhost/SharedBall");//连接到FMS

function netStatusHandler(e:NetStatusEvent) {
	switch (e.info.code) {
		case "NetConnection.Connect.Success" :
			trace("Congratulations! you're connected");
			so=SharedObject.getRemote("ballPosition",nc.uri,false);
			so.connect(nc);
			so.addEventListener(SyncEvent.SYNC, syncHandler);
			break;
		default :
			break;
	}
}

function pickup(e:MouseEvent):void {
	e.target.startDrag();
}

function place(e:MouseEvent):void {
	e.target.stopDrag();
}

function moveIt( e:MouseEvent ):void {
	if (so!=null) {
		//移动时，修改共享对象so的属性值
		so.setProperty("x", sharedBall.x);
		so.setProperty("y", sharedBall.y);
	}
}


function syncHandler(e:SyncEvent):void {
	//so有一个对象data，用来保存用户设置的属性值 
	trace(so.data.x);
	trace(so.data.y);
	//程序首次进入时，共享对象还没有值，所以要判断设置初始值 
	if (so.data.x==undefined||so.data.y==undefined) {
		sharedBall.x = 50;
		sharedBall.y = 50;
	} else {
		sharedBall.x=so.data.x;
		sharedBall.y=so.data.y;
	}
}