GameCulture.cs

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using System.Collections.Generic;
using System.Globalization;
using System.Linq;
 
namespace Terraria.Localization;
 
public class GameCulture
{
    public enum CultureName
    {
        English = 1,
        German = 2,
        Italian = 3,
        French = 4,
        Spanish = 5,
        Russian = 6,
        Chinese = 7,
        Portuguese = 8,
        Polish = 9,
        Unknown = 9999
    }
 
    private static Dictionary<CultureName, GameCulture> _NamedCultures;
 
    private static Dictionary<int, GameCulture> _legacyCultures;
 
    public readonly CultureInfo CultureInfo;
 
    public readonly int LegacyId;
 
    public static GameCulture DefaultCulture { get; set; }
 
    public bool IsActive => Language.ActiveCulture == this;
 
    public string Name => CultureInfo.Name;
 
    public static GameCulture FromCultureName(CultureName name)
    {
        if (!_NamedCultures.ContainsKey(name))
        {
            return DefaultCulture;
        }
        return _NamedCultures[name];
    }
 
    public static GameCulture FromLegacyId(int id)
    {
        if (id < 1)
        {
            id = 1;
        }
        if (!_legacyCultures.ContainsKey(id))
        {
            return DefaultCulture;
        }
        return _legacyCultures[id];
    }
 
    public static GameCulture FromName(string name)
    {
        return _legacyCultures.Values.SingleOrDefault((GameCulture culture) => culture.Name == name) ?? DefaultCulture;
    }
 
    static GameCulture()
    {
        _NamedCultures = new Dictionary<CultureName, GameCulture>
        {
            {
                CultureName.English,
                new GameCulture("en-US", 1)
            },
            {
                CultureName.German,
                new GameCulture("de-DE", 2)
            },
            {
                CultureName.Italian,
                new GameCulture("it-IT", 3)
            },
            {
                CultureName.French,
                new GameCulture("fr-FR", 4)
            },
            {
                CultureName.Spanish,
                new GameCulture("es-ES", 5)
            },
            {
                CultureName.Russian,
                new GameCulture("ru-RU", 6)
            },
            {
                CultureName.Chinese,
                new GameCulture("zh-Hans", 7)
            },
            {
                CultureName.Portuguese,
                new GameCulture("pt-BR", 8)
            },
            {
                CultureName.Polish,
                new GameCulture("pl-PL", 9)
            }
        };
        DefaultCulture = _NamedCultures[CultureName.English];
    }
 
    public GameCulture(string name, int legacyId)
    {
        CultureInfo = new CultureInfo(name);
        LegacyId = legacyId;
        RegisterLegacyCulture(this, legacyId);
    }
 
    private static void RegisterLegacyCulture(GameCulture culture, int legacyId)
    {
        if (_legacyCultures == null)
        {
            _legacyCultures = new Dictionary<int, GameCulture>();
        }
        _legacyCultures.Add(legacyId, culture);
    }
}