Communication between Box2D and libGDX Stage (Scene2D) running in separate threads

Posted by atok on Game Development See other posts from Game Development or by atok
Published on 2013-12-30T23:09:06Z Indexed on 2014/05/31 16:07 UTC
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libgdx

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box2d

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multithreading

I'm making a physics based 2D game using libGDX and Box2D. I want to move the execution of the simulation out of render thread. I use immutable messages and the BlockingQueue to pass the information about player actions. The Box2D applies forces and runs a frame of simulation. In the next step I would like to sync back the changes and update Scene2D Actors accordingly. Making an immutable copy of the state of the game world and sending it back using Gdx.app.postRunnable() is one option but it seems inefficient.

Is there any other option?

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