Using an enum as an array index

Question

I have this enum:

enum ButtonState {
    BUTTON_NORMAL = 0,
    BUTTON_PRESSED = 1,
    BUTTON_CLICKED = 2
};

const u8 NUM_BUTTON_STATES = 3;

Answer 1

It's fine, but I'd want to do some bounds checking on the array, as if someone adds another ButtonState, you'll have a problem.

Also, the elements of the colors array are immutable, so maybe look at using a different collection to array so that you can enforce that immutability. Maybe a Dictionary