How do I make a code that moves a part forward if the player holds down the W key

[Scottifly]

A raycast downwards from the camera Part can determine the Normal of the surface it instersects. Is it Possible to get the Normal Vector of a Surface? - #3 by DevSynaptix
You may be able to aim the camera depending on the Normal of the part below it.
RaycastResult | Roblox Creator Documentation