Irrlicht Engine

If you added another type you would make that one 0x0008, and the next would be 0x0010...

#define NONE_MASK (0x0000)
#define BALL_MASK (0x0001)
#define CUBE_MASK (0x0008) <------
#define BALL2_MASK (0x0010) <------

Then is set getSceneNodeFromScreenCoordinatesBB(pos, BALL2_MASK);


I have a ...

I have some problem about getSceneNodeFromScreenCoordinatesBB(). I try to add 1 more SphereSceneNode and I set the ID to be BALL2_MASK. And then I set getSceneNodeFromScreenCoordinatesBB(pos, BALL2_MASK). From this following code, I should select only on the new Sphere but I can select every node ...

Thank you very much

I want to know the best way to deal with this problem.
I try to call the fucntion 20 times but my game run very slow.

In my game, there are five monsters that can run freely in the map and I want to check the collision detection between all of them.
Do I have to check every pair of them like this

monster1 and monster2
monster1 and monster3
monster1 and monster4
monster1 and monster5

monster2 and monster1
monster2 ...