Unable to remove avatars from stage

[Sfulk]

Hello Everyone,
I recently added a room list to the flash Simple MMO World example. I am having problems removing the avatars of the previous room from the stage before joining the new room. I looked at the Avatar Chat example and saw that they used this:

Code: Select all

while (panel_chat.avArea.avContainer.numChildren > 0)
				removeAvatar(getAvatar(0))

I modified it to this and added to the onRoomJoin function:

Code: Select all

while (mapArea.avContainer.numChildren > 0)
				removeAvatar(getAvatar(0))

This isn’t working though, when I initially join a room I get this error:

TypeError: Error #1009: Cannot access a property or method of a null object reference.

If I join a room after that I get the following error:

TypeError: Error #2007: Parameter child must be non-null.
at flash.display::DisplayObjectContainer/removeChild()

I looked through the Avatar Chat example and saw that the removeAvatar and getAvatar functions are identical to the removeAvatar and getAvatar functions in the Simple MMO World example so I’m not sure why I’m getting this error. Any help would be greatly appreciated.
Thanks,
Scott

[Bax]

As it regards the error on the first join, maybe mapArea or avContainer objects are not yet available on the stage?
In fact the Simple MMO example, in the onRoomJoin listener, moves the playhead of the Flash timeline to a new frame. The content of the frame must be drawn before you can access it.

About the second error, it is hard to say. It seems you are doing something like "removeChild(null)". The getAvatar method requires a username to be passed. How do you know what name to pass?

[Sfulk]

Hey Bax,

Thanks for the help, what is the proper way to remove all avatars? Like get a userList from the previous room and pass all of those usernames through or is there a way to just remove all instances of the avatar movie clip to basically reset the stage?

Thanks again,
Scott

[Bax]

If you have a display object acting as a container for all the avatars, you may cycle through its children and remove them.
Take a look at this for example: http://stackoverflow.com/questions/5082 ... l-children

[Sfulk]

Thanks a lot Bax, I got it working.