Files
Shogi/Shogi.Domain/Notation.cs
2022-06-12 12:37:32 -05:00

34 lines
944 B
C#

using System.Text.RegularExpressions;
namespace Shogi.Domain
{
public static class Notation
{
private static readonly string BoardNotationRegex = @"(?<file>[A-I])(?<rank>[1-9])";
private static readonly char A = 'A';
public static string ToBoardNotation(Vector2 vector)
{
return ToBoardNotation((int)vector.X, (int)vector.Y);
}
public static string ToBoardNotation(int x, int y)
{
var file = (char)(x + A);
var rank = y + 1;
return $"{file}{rank}";
}
public static Vector2 FromBoardNotation(string notation)
{
if (Regex.IsMatch(notation, BoardNotationRegex))
{
var match = Regex.Match(notation, BoardNotationRegex, RegexOptions.IgnoreCase);
char file = match.Groups["file"].Value[0];
int rank = int.Parse(match.Groups["rank"].Value);
return new Vector2(file - A, rank - 1);
}
throw new ArgumentException($"Board notation not recognized. Notation given: {notation}");
}
}
}