using System;

namespace Assignment10
{
    class Program
    {
        static void Main(string[] args)
        {
            const int SIVIR_RANDOM_SEED = 168;
            Champion sivir = new Champion("Sivir", 250, 40, SIVIR_RANDOM_SEED); //(name,hp,attackStrength)
            const int OLAF_RANDOM_SEED = 777;
            Champion olaf = new Champion("Olaf", 300, 55, OLAF_RANDOM_SEED);
            Random rand = new Random();

            int k;
            Console.WriteLine("Start Fighting!!\n");
            while (sivir.PositiveHP() && olaf.PositiveHP())
            {
                //Random決定攻擊順序
                k = rand.Next() % 2;
                if (k == 0)
                {
                    Fight(sivir, olaf);
                }
                else
                {
                    Fight(olaf, sivir);
                }
            }
        }

        static void Fight(Champion attacker, Champion victim)
        {
            attacker.Attack(victim);
            Console.WriteLine(attacker.Name + "\tattacks" + "\t\t\tHP = {0}", attacker.HP);
            Console.WriteLine(victim.Name + "\ttakes {0} HP loss" + "\tHP = {1}",
                victim.Damage, victim.HP);
            if (!victim.PositiveHP())
            { 
                Console.WriteLine(attacker.Name + " WIN !!"); 
            }
        }
    }

    class Champion
    {
        private int hp;
        private int attackStrength;
        private int damage;
        private string name;
        Random rand;

        public string Name
        {
           get { return name; }
        }

        public int HP
        {
            get { return hp; }
        }

        public int Damage
        {
            get { return damage; }
        }

        public Champion(string name, int hp, int attackStrength, int randSeed) 
        {
            this.name = name;
            this.hp = hp;
            this.attackStrength = attackStrength;
            damage = 0;
            rand = new Random(randSeed);
        }

        public Champion() // 建構式
        {
            name = "NoName";
            hp = 100;
            attackStrength = 20;
            damage = 0;
            rand = new Random();
        }

        public void Attack(Champion victim) //英雄攻擊對方時呼叫此函式，函式的輸入是被攻擊者物件
        {
            int damage = attackStrength*hp/150 + rand.Next() % 20 + 1;
            if (damage > victim.HP) damage = victim.HP;
            victim.BeingAttacked(damage);
        }

        public void BeingAttacked(int damage) //被攻擊者要呼叫此函式，減少血量
        {
            this.damage = damage;
            hp -= damage;
        }

        public bool PositiveHP() //檢查血量是否為正
        {
            return (hp > 0);
        }
    }
}