I am interested in simply making the player move in the game world (animating is not necessary) as if s/he were actually climbing a ladder. I am wondering if anyone has any ideas about smoothly moving the player vertically?

Also, I would like to change to the camera angle to point upward during the climb. I am familiar with scripting. I don't need a tutorial. I just need an idea of watch methods I need to use to achieve this, if it's possible. Thank you, in advance.