fn sim( least_mana_used: Arc<Mutex<u64>>, boss_hitpoints: i64, boss_damage: u64, player_hitpoints: i64, player_mana: i64, active_spells: Vec<(i64, i64, i64, u64, u64, i64, u64)>, player_turn: bool, mana_used: u64, part_two: bool) -> bool
