exercism/csharp/annalyns-infiltration/AnnalynsInfiltration.cs

using System;

static class QuestLogic
{
    public static bool CanFastAttack(bool knightIsAwake)
    {
        return !knightIsAwake;
    }

    public static bool CanSpy(bool knightIsAwake, bool archerIsAwake, bool prisonerIsAwake)
    {
        return knightIsAwake || archerIsAwake || prisonerIsAwake;
    }

    public static bool CanSignalPrisoner(bool archerIsAwake, bool prisonerIsAwake)
    {
        return !archerIsAwake && prisonerIsAwake;
    }

    public static bool CanFreePrisoner(bool knightIsAwake, bool archerIsAwake, bool prisonerIsAwake, bool petDogIsPresent)
    {
        return !archerIsAwake && 
            ((!knightIsAwake && (prisonerIsAwake || petDogIsPresent))
             || (knightIsAwake && petDogIsPresent))
            ;
    }
}