Physics

Comments

• ar2rsawseen Maintainer

  August 2015

  quick fix is:
  http://appcodingeasy.com/Gideros-Mobile/Gideros--remove-object-on-collision

  http://appcodingeasy.com/Gideros-Mobile

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• Max Member

  August 2015

  Thanks, but I'm still getting the error
  

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• pie Member

  August 2015

  @Max "world is locked" may happen because you can't update box2d environment while simulating (during the step function)
  
  I think that this discussion should help
  http://giderosmobile.com/forum/discussion/comment/5906#Comment_5906

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• totebo Member

  August 2015

  @max, as Pie says, it's likely that you're trying to modify something in the Box2D world within a collision event handler. The dirty way of fixing it is simply waiting one frame. Make sure that you also remove all references to the body that you destroyed, so you don't try to destroy it twice.

  My Gideros games: www.totebo.com

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• Max Member

  August 2015

  Thanks
  My problem is, that when I exit the first level and enter the second one, the physics bodies I used in level 1 are still there. To generate the levels I'm using for loops and local classes (for the platforms).
  Any idea how to do this?
  
  
  

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• Max Member

  August 2015 edited August 2015

  
  I tried this:
  if win == false then
  b2.world:destroyBody(bodyA)
  b2.world:destroyBody(bodyB)
  win = true
  end
  But it didn't work...

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• ar2rsawseen Maintainer

  August 2015

  For starters create a new world on scene
  if old world loses all references, it will be garbage collected with all bodies in it

  http://appcodingeasy.com/Gideros-Mobile

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• Zizanyman Member

  August 2015 edited August 2015

  @Max If you are using scene manager, then you should add the bodies to the scene instead of stage. If you are using the same scene for all the levels, then do what @ar2sawseen said.
  
  http://appcodingeasy.com/Gideros-Mobile/Manage-Scenes-in-Gideros-Mobile

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• Max Member

  August 2015 edited August 2015

  Thanks, but when I create a new world, the collisions don't work...
  There's no error.
  I'm using the Scene Manager. When the Level class is called, I create a new world.

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• Zizanyman Member

  August 2015 edited August 2015

  @Max did you add all the objects into the new world that you needed in the level? All you would need to do is change oldworld:createBody (with oldworld being the world you were using for your previous level) to newworld:createBody (with newworld being the world you just created for your new level). Do this for all your objects in the world. Please correct me if I'm wrong.

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• Zizanyman Member

  August 2015 edited August 2015

  Also, in your enter frame function, change the oldworld:step() to newworld:step() (with oldworld and newworld being the same as before). This will cause the world to be updated. Again, correct me if I'm wrong.
  Also, turning on debug drawing will help you a lot.

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• Max Member

  August 2015

  Thanks
  I've already changed it to levelScene.world:b2.World.new(0,0) and so on.
  But, as I said, the collisions don't work then.
  

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