using System;

​

public struct Vector3

{

    public float x, y, z;

    public Vector3(float x, float y, float z)

    {

        this.x = x;

        this.y = y;

        this.z = z;

    }

}

​

public class Player

{

    public string name = "Player";

    public int kills;

    public int credits;

    public Vector3 position;

}

​

public class Condition

{

    public dynamic value;

    public Condition(dynamic val)

    {

        value = val;

    }

​

    public virtual bool IsSatisified(Player player)

    {

        return false;

    }

}

​

public class HasKills : Condition

{

    public HasKills(int value): base (value)

    {

    }

​

    public override bool IsSatisified(Player player)

    {

        return player.kills >= value;

    }

}

​

public class HasName : Condition

{

    public HasName(string value): base (value)

    {

    }

​

    public override bool IsSatisified(Player player)

    {

        return player.name.Equals(value);

    }

}

​

public class HasPosition : Condition

{

    public HasPosition(Vector3 value): base (value)

    {

    }

​

    public override bool IsSatisified(Player player)

    {

        return player.position.x == value.x && player.position.y == value.y && player.position.z == value.z;

    }

}

​

public class Program

{

    public static void Main()

    {

        var player = new Player();

        var killsTest = new HasKills(5);

        var nameTest = new HasName("Foo");

        var posTest = new HasPosition(new Vector3(1, 2, 3));

        Console.WriteLine("KillsTest(1): " + killsTest.IsSatisified(player));

        player.kills = 10;

        Console.WriteLine("KillsTest(2): " + killsTest.IsSatisified(player));

        Console.WriteLine("NameTest(1): " + nameTest.IsSatisified(player));

        player.name = "Foo";

        Console.WriteLine("NameTest(2): " + nameTest.IsSatisified(player));

        Console.WriteLine("PosTest(1): " + posTest.IsSatisified(player));

        player.position = new Vector3(1, 2, 3);

        Console.WriteLine("PosTest(2): " + posTest.IsSatisified(player));

    }

}