Irrlicht Engine

Thank's for your tip, but, i saw the any cameras in addcamera, no one of them have this feature. I thought in create a scene node and link with a camera, this scene node ll'be a collision detection, both will be inside a scene node. They can't go out from them. I think this way. :D but, i have no ...

i'm new in C++ and irrlicht, so, i need to know how can i put a camera in my game in a specific trajectory. The user can control the moviment, left, right, closer or more distant, but, in a specific way.