In this part of my C# tutorial series we will make a fun little game. I’m going to show how to create 2 warriors that will fight to the death in a simulated battle. More complex video games follow many of the techniques we cover in this video. It also will show how awesome object oriented programming is in that it gives you the ability to model just about any real world object, or interaction.

For best results print the code and then write your own programs while referring to the cheat sheet.

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Code & Transcript

// ---------- Warrior.cs ----------

using System;

namespace CSharpTutA.cs
{
    class Warrior
    {
        // Define the Warriors properties
        public string Name { get; set; } = "Warrior";
        public double Health { get; set; } = 0;
        public double AttkMax { get; set; } = 0;
        public double BlockMax { get; set; } = 0;

        // Always create a single Random instance and reuse
        // it or you will get the same value over and over
        Random rnd = new Random();

        // Constructor initializes the warrior
        public Warrior(string name = "Warrior", 
            double health = 0, 
            double attkMax = 0,
            double blockMax = 0)
        {
            Name = name;
            Health = health;
            AttkMax = attkMax;
            BlockMax = blockMax;
        }

        // Generate a random atack value from 1
        // to the warriors maximum attack value
        public double Attack()
        {
            return rnd.Next(1, (int)AttkMax);
        }

        // Generate a random block value from
        // 1 to the warriors maximum block
        public double Block()
        {
            return rnd.Next(1, (int)BlockMax);
        }

    }
}

// ---------- Battle.cs ----------

using System;

namespace CSharpTutA.cs
{
    class Battle
    {
        // This is a utility class so it makes sense
        // to have just static methods

        // Recieve both Warrior objects
        public static void StartFight(Warrior warrior1,
            Warrior warrior2)
        {
            // Loop giving each Warrior a chance to attack
            // and block each turn until 1 dies
            while (true)
            {
                if (GetAttackResult(warrior1, warrior2) == "Game Over")
                {
                    Console.WriteLine("Game Over");
                    break;
                }

                if (GetAttackResult(warrior2, warrior1) == "Game Over")
                {
                    Console.WriteLine("Game Over");
                    break;
                }
            }
        }

        // Accept 2 Warriors
        public static string GetAttackResult(Warrior warriorA,
            Warrior warriorB)
        {
            // Calculate one Warriors attack and the others block
            double warAAttkAmt = warriorA.Attack();
            double warBBlkAmt = warriorB.Block();

            // Subtract block from attack
            double dmg2WarB = warAAttkAmt - warBBlkAmt;

            // If there was damage subtract that from the health
            if (dmg2WarB > 0)
            {
                warriorB.Health = warriorB.Health - dmg2WarB;
            }
            else dmg2WarB = 0;

            // Print out info on who attacked who and for how
            // much damage
            Console.WriteLine("{0} Attacks {1} and Deals {2} Damage",
                warriorA.Name,
                warriorB.Name,
                dmg2WarB);

            // Provide output on the change to health
            Console.WriteLine("{0} Has {1} Health\n",
                warriorB.Name,
                warriorB.Health);

            // Check if the warriors health fell below
            // zero and if so print a message and send
            // a response that will end the loop
            if (warriorB.Health <= 0)
            {
                Console.WriteLine("{0} has Died and {1} is Victorious\n",
                    warriorB.Name,
                    warriorA.Name);

                return "Game Over";
            }
            else return "Fight Again";
        }

    }
}

// ---------- Program.cs ----------

using System;

namespace CSharpTutA.cs
{
    class Program
    {
        /*
        Bob Attacks Maximus and Deals 74 Damage
        Maximus Has 69 Health

        Maximus Attacks Bob and Deals 6 Damage
        Bob Has 6 Health

        Bob Attacks Maximus and Deals 48 Damage
        Maximus Has 21 Health

        Maximus Attacks Bob and Deals 48 Damage
        Bob Has -42 Health

        Bob has Died and Maximus is Victorious

        Game Over
        */

        static void Main(string[] args)
        {
            Warrior maximus = new Warrior("Maximus", 1000, 120, 40);
            Warrior bob = new Warrior("Bob", 1000, 120, 40);

            Battle.StartFight(maximus, bob);

            Console.ReadLine();

        }
        
    }

}