Example of OnCollisionEnter in Unity in c# from Unity 3d Student

gistfile1.txt

   void OnCollisionEnter(Collision theCollision){
 		if(theCollision.gameObject.name == "Floor"){
  		Debug.Log("Hit the floor");
 		}else if(theCollision.gameObject.name == "Wall"){
  		Debug.Log("Hit the wall");
	 }