[Question] [Code] Changing move button layout

[funnycatswag]

Hello,
I've been making a custom battle UI and decided to change the move button layout; my only issue is that when moving the cursor, it stops at the fourth slot even when I have less than 4 moves. For some reason I can't wrap my mind around how to properly program it so that it stops at the last available move.

Here is my layout:



Here is my current code:

oldIndex = cw.index
      pbUpdate(cw)
      if Input.trigger?(Input::LEFT)
        cw.index -= 1 if cw.index != 0
      elsif Input.trigger?(Input::RIGHT)
        cw.index += 1 if cw.index != 3
      end

 

[Atlat]

cw.index += 1 if cw.index != 3

That 3 is a problem because that means it ends on the fourth move no matter what. If it was set to 2 for example, you wouldn't be able to move past the third move. Essentially, that 3 needs to be changed to the number of moves the Pokémon has - 1 (or better yet, do something like cw.index < #moves-1 as that's more flexible in my eyes).