i am starting to learn Unity3d and one of the confusion i get is difference between Update()Update() and FixedUpdate()FixedUpdate().
I am following Lynda Unity 2D game development tutorial there, the instructor uses UpdateUpdate method, the player has RigidBody2D component and Box collider, he uses The updatethe Update method to translate the player, but when i do same in UpdateUpdate the player doesn't move but when i do it in FixedUpdateFixedUpdate, everything works. He is giving tutorial from Unity 4.3 and i am taking the course in Unity 4.6.
Where should i use UpdateUpdate and FixedUpdateFixedUpdate?