class inheritance and the scene manager

[qwe]

so, if i create my own drived class in Irrlicht for, say, the camera scene node, do I have to modify the scene manager code so i can call smgr->addCustomCameraSceneNode()? or what?

[schick]

what you want is to set up a custom node. You dont need to use the scenemanager to create such. Watch out for http://irrlicht.sourceforge.net/tut003.html tutorial, here you get the most information you need. If you have further needs post them in the forum.

[keless]

shick, that tutorial is on CustomSceneNodes, not CustomCameraNodes...

[rt]

so, if i create my own drived class in Irrlicht for, say, the camera scene node, do I have to modify the scene manager code so i can call smgr->addCustomCameraSceneNode()? or what?

i derived my own camera and when i create a new one i go

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cam = new MyOwnCam();

since the constructor of CCameraSceneNode takes care of deleting the object when the device is dropped there is nothing else to do. i could post the code for it if you'd like

[qwe]

interesting... so the object doesn't have to relate to the scene manager like normal? I thought that's what addWhateverSceneNode() was for...

[Boogle]

It is more complicated when creating your own but you don't have to add a new addMyCamera() method to the scene manager.

This is the code from the scene manager for adding a standard camera:

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if (!parent)
	parent = this;

ICameraSceneNode* node = new CCameraSceneNode(parent, this, id, position, lookat);
node->drop();

if (!ActiveCamera)
	ActiveCamera = node;

return node;

So you'll want to emulate this, probably along the lines of

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MyCam* cam = new MyCam(smgr, smgr, id, position, lookat);
node->drop();

smgr->setActiveCamera(cam);

which you can just stick anywhere you want in your own code (without having to update Irrlicht). The two smgr's allow you to specify a different parent in place of the first if you want. The second is there just because you'll need it for the ICameraSceneNode constructor, since you'll be implementing this interface.

[qwe]

awesome. thanks you guys