private string Reward(IParty party, IAdventure adventure) { int xp = CalcXP(adventure, party, adventure.RewardModifier); int coins = CalcCoins(adventure, party, adventure.RewardModifier); string rewardMessage = adventure.Name + " has been completed! Each player has been awarded: " + xp + " xp and " + coins + " coins! "; party.AddXp(xp); party.AddCoins(coins); return(rewardMessage); }