Problem during delete

I create a body within a Frame Listener Class and want to delete it during the running scene. The class shall be deleted to.

So I'v written a destructor for the class as following:


Ogre::Root::getSingleton().removeFrameListener(this);

mBdyBody->mNode->removeChild(mNodParticleSystem);
mNodParticleSystem->detachObject(mParticleSystem);
mSceneManager->destroyParticleSystem(mParticleSystem);

mNxSceneManager->destroyBody(mName);


While the program is runing it works. But when the Ogre::Root is deleted, I get a seg fault.

Hmm thats really really odd.

I've deleted bodies within frameListeners before, in Tutorial 116 as you create more bodies using the space bar if it reaches the soft-limit of 75 it calls the a scene function to delete bodies older than 30 seconds.

More or less it's the same code.

A naughty way of doing it is via "delete mBody;" see if that works?

However if your just switching levels, or in between scenes. Why just not delete the scene?

It's not during changing between two scenes. I'm deleting old projectiles this way. This is the reason why I'm programming the Magazine Storage...

With normal delete it works neither.

Right, I may have down the error, and squashed a nasty bug as well.

I was working on my own project and I wanted to delete a list of scenes by hand then delete world. It deletes the scene fine, but then world crashes. Reporting that there is still 1 scene around to be deleted.

Turns out I forgot to erase that scene from the mScene vector in World, causing it to think that there is still 1 scene around, pointing to some cleared memory.

To fix it just find the Scene iterators (three of them) in NxOgre_World.cpp. Around line: 310, 329 and at 421. You'll find a line that says "delete (*i);" add the following after that, do it for all three.

mScene.erase(i);


I'm not saying it'll fix your problem, but it's worth a shot.

I'm not saying it'll fix your problem, but it's worth a shot.

Sadly it didn't hit the point. But thanks for the help.

Bah.

At the weekend I'll make another try. I want this problem to be fixed. It's making me nuts!

mBdyBody->mNode->removeChild(mNodParticleSystem);
mNodParticleSystem->detachObject(mParticleSystem);
mSceneManager->destroyParticleSystem(mParticleSystem);

try using this instead.

mSceneManager->destroySceneNode(mNodParticleSystem->getName());
mSceneManager->destroyParticleSystem(mParticleSystem);


It may be related but I just fixed a bug that I don't know how got in, that crashed when the last scene was deleted.

No idea how it got into the code though.