||unity-dev|| newbie question on extending uSharedPointer

Thank you very much!
Everything is working now!

~Tony

-----Original Message-----
From: unity-dev-bounces at moock.org [mailto:unity-dev-bounces at moock.org]
On Behalf Of Discussion list for Unity developers.
Sent: Sunday, January 28, 2007 3:13 AM
To: unity-dev at moock.org
Subject: Re: ||unity-dev|| newbie question on extending uSharedPointer

hi tony,
the instance variable 'client' is null because it is not available in 
the scope of the nested onRelease() function. (just to be clear, this is

an ActionScript 2.0 issue, not a Unity issue).

in onAddClient(), try creating a new local variable to hold the 
reference to 'client', as in:

var thisClient:UClient = client;

then, within onRelease(), you should be able to do this:

   thisClient.invokeOnClient("onClick", clientID, s);

the preceding code works because a nested function has access to its 
parent function's local variables via the scope chain.

hope that helps,
colin



Discussion list for Unity developers. wrote:
> Hi Unity developers,
> 
>  
> 
> My name is Tony.  I just joined this list.  Please forgive my
> unfamiliarity with Unity.
> 
>  
> 
> I'm very new to Unity development (first time).  I'm currently working
> on a project that is pretty much the uSharedPointer example with the
> addition of one thing:
> 
> When a user's pointer is clicked on, that particular user gets a
visual
> cue.
> 
> Ex. Users A and B are on the visiting the site.  User A clicks on User
> B's mouse cursor which in turn causes a visual cue on User B's flash.
> 
>  
> 
> I've modified the SharedPointerRoomView class:
> 
>  
> 
> public function onNumClients (e:URoomEvent):Void {
> 
>     client.getTargetMC().numUsers_txt.text = e.getNumClients() + ' ('
+
> client.getClientID() + ')';
> 
>     //client.invokeOnClient("onClick", client.getClientID(),
> client.getClientID());
> 
>     trace(e.getNumClients());
> 
>   }
> 
>  
> 
> public function onAddClient (e:URoomEvent):Void {
> 
>     var clientID:String = e.getClientID();
> 
>     var username:String;
> 
>  
> 
>     // Retrieve the remoteuser that represents the client that just
> joined.
> 
>     var remoteuser:RemoteClient =
> client.getRemoteClientManager().getClient(clientID);
> 
>  
> 
>     // Create a Pointer object for the new user.
> 
>     pointers[clientID] = new Pointer(client.getTargetMC(),
> client.getNewTargetDepth());
> 
>     pointers[clientID].setIcon(Settings.defaultPointerIcon);
> 
>     var s:String = client.getClientID();
> 
>     // hide your own pointer
> 
>     if (clientID == s)
> 
>     { pointers[clientID].hide(); }
> 
>     pointers[clientID].pointerContainer_mc.onRelease = function ()
> 
>     {
> 
>       //client.invokeOnClient("onClick", clientID, s);
> 
>       //var ev:URoomEvent = new URoomEvent(this, clientID, s);
> 
>       //this.onClick(ev);
> 
>       //trace(ev.getStatus());
> 
>     }
> 
>  
> 
>     var userPositions:Array =
> remoteuser.getAttribute(Settings.appNamespaceID 
> 
>                                                                 + "."
+
> Settings.appRoomID, "posList").split("~");
> 
>     var userNextPosition:Array = userPositions[0].split(",");
> 
>     var userX:Number = parseInt(userNextPosition[0]);
> 
>     var userY:Number = parseInt(userNextPosition[1]);
> 
>     
> 
>     client.invokeOnClient("setClickerEvent", client.getClientID(),
> client.getClientID());
> 
>  
> 
>     pointers[clientID].moveTo(userX, userY);
> 
>   }
> 
>  
> 
>   /**
> 
>    * URoomListener event handler
> 
>    */
> 
>   public function onClick(e:URoomEvent):Void {
> 
>     trace(client.getClientID() + ' to ' + e.getStatus());
> 
>     client.invokeOnClient("onClick", e.getStatus(),
> client.getClientID());
> 
> }
> 
>  
> 
>  
> 
> I've also added this event handler to uSharedPointer class:
> 
>  
> 
> public function onClick(e:SocketEvent):Void {
> 
>     trace(e);
> 
>     if (getClientID() == e)
> 
>     {
> 
>       getTargetMC().showClicker();
> 
>     }
> 
>   }
> 
>  
> 
>  
> 
> The problem is that the client variable is null when the onRelease
event
> is triggered.  The invokeOnClient() call works in the onNumClients()
> event handler.  I tried to raise an event but that didn't work, also.
> So I'm stuck.  Maybe I'm overlooking the obvious.
> 
> Please help.
> 
>  
> 
> Thank you very much for your time!
> 
> ~Tony
> 
>  
> 
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