Question

I’m using a state machine, and the code’s getting really verbose when testing against a large number of possible states.

enum Mood {
    HAPPY, SAD, CALM, SLEEPY, OPTIMISTIC, PENSIVE, ENERGETIC;
}

Is there any way to do this:

if (currentMood == (HAPPY | OPTIMISTIC | ENERGETIC) {}

Instead of this:

if (currentMood == HAPPY || currentMood == OPTIMISTIC || currentMood == ENERGETIC) {}

Or would it be better to stick with integers and flags in this case?

Answer 1

Maybe use something like EnumSet?

if (EnumSet<Mood>.of(HAPPY, OPTIMISTIC, ENERGETIC).contains(currentMood))
{ 
 //Do stuff...
}