playnextplayprev.cs

public void PlayNext()
{
    HorseState currentState = horseAnimationHandler.GetCurrentState();

    switch (currentState)
    {
        case HorseState.stillHorse:
        case HorseState.muscleToHorse:
            prevButton.interactable = true;
            horseAnimationHandler.Play(HorseState.horseToMuscle.ToString());
            break;
        case HorseState.boneToMuscle:
        case HorseState.horseToMuscle:
            horseAnimationHandler.Play(HorseState.muscleToBone.ToString());
            nextButton.interactable = false;
            break;
        case HorseState.muscleToBone:
            break;   
        default:
            break;
    }

}

public void PlayPrev()
{
    HorseState currentState = horseAnimationHandler.GetCurrentState();

    switch (currentState)
    {
        case HorseState.stillHorse:
        case HorseState.muscleToHorse:
            break;
        case HorseState.boneToMuscle:
        case HorseState.horseToMuscle:
            horseAnimationHandler.Play(HorseState.muscleToHorse.ToString());
            prevButton.interactable = false;
            break;
        case HorseState.muscleToBone:
            horseAnimationHandler.Play(HorseState.boneToMuscle.ToString());
            nextButton.interactable = true;
            break;
        default:
            break;
    }

}