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<  Advanced Erlang/OTP  ~  wxErlang: timeout when drawing
Skully
Posted: Mon May 02, 2011 3:50 pm Reply with quote
Joined: 21 May 2007 Posts: 8
Hi!

I am trying to create a little game with wxErlang.
I have a Panel and some sprites.
Currently the drawing is working like that:

Code:

wx:batch(fun() ->
    Functions = wx:map(fun({_,S}) -> sprite:draw(S) end, Sprites),
    wx:foreach(fun(F) -> F(DC) end, Functions)
  end)

So the panels draw method gets from each Sprite his draw function.
After that it executes each funtion with the current wxDC.

My problem is, that i sometimes get timeouts on the draw method of the sprite when many actions are happening on that sprite.

For example:
rotate sprite with each mouse movement.
After few seconds the application hangs and i get a gen_server timeout for that draw method.

My guess it that the mailbox gets flooded with messages or something.
Each change on a sprite currently calls "refresh" on the panel again, which will execute above code again.
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