using System;

​

public class Program

{

    public static int MapToGrid(int pos = 123)

    {

        var xfactor = 990 / 29; // todo to static

        return pos / xfactor;

    }

​

    public static float MapToSpace(int idx = 10)

    {

        var xfactor = 990 / 30; // todo to static

        return (float)(idx * xfactor) + xfactor * 0.5f;

    }

​

    public static void Main()

    {

        Console.WriteLine((990 / 30).ToString());

        Console.WriteLine(MapToGrid(990).ToString());

        Console.WriteLine(MapToGrid(0).ToString());

        Console.WriteLine(MapToGrid(34).ToString());

        Console.WriteLine(MapToSpace(1).ToString());

        Console.WriteLine(MapToSpace(0).ToString());

        Console.WriteLine(MapToSpace(29).ToString());

    }

}