All the code from lesson 1.5

Lesson1-5.cs

using System;

class MainClass {

  public static void Main ()
	{
        float answer = Maths.Divide(2f, 4f);
        int answer2 = Maths.Addition(5, 6);
        float somefloat = Maths.pi;
        Console.Write(answer2);
        Console.ReadKey();

        Coord2 playerCoord = new Coord2(2f, 6f) + new Coord2(23f, 6f);
        
	}


}

static class Maths {

    public static float pi = 3.1415896335f;

    public static float Divide(float num1, float num2)
    {
        float result = num1 / num2;
        return result;
    }

    public static int Addition(int num1, int num2)
    {
        int result = num1 + num2;
        return result;
    }

}

class Cat {
    public string name = "fluffy";
    public string FurCol = "pink";
    public int age = 1;
    public int x = 2;

    public void DoSomething()
    {
        if (age == x) {
            //be happy
        }
    }
}

struct Coord2 {
    public float x;
    public float y;
	
    //Constructor
    public Coord2(float _x, float _y)
    {
        this.x = _x;
        this.y = _y;
    }

    public static Coord2 operator+ (Coord2 a, Coord2 b)
    {
        return new Coord2(a.x + b.x, a.y + b.y);
    }
}