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using com.clusterrr.Famicom.Containers;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
using System.Text.Json.Serialization;
namespace com.clusterrr.Famicom.CoolGirl
{
class Game
{
public enum NesContainerType { iNES = 1, UNIF = 2 };
[JsonPropertyName("file_name")]
public string FileName { get; set; } = String.Empty;
[JsonPropertyName("menu_name")]
public string MenuName { get; set; } = String.Empty;
[JsonIgnore]
public readonly byte[] PRG = Array.Empty<byte>();
[JsonPropertyName("prg_offset")]
public int PrgOffset { get; set; } = 0;
[JsonIgnore]
public readonly byte[] CHR = Array.Empty<byte>();
[JsonPropertyName("chr_offset")]
public int ChrOffset { get; set; } = 0;
[JsonIgnore]
public int? PrgRamSize { get; set; } = null;
[JsonIgnore]
public int? ChrRamSize { get; set; } = null;
[JsonPropertyName("mapper")]
public string Mapper { get; set; } = String.Empty;
[JsonPropertyName("save_id")]
public byte SaveId { get; set; }
[JsonIgnore]
public GameFlags Flags { get; set; }
[JsonPropertyName("battery")]
public bool Battery { get; set; }
[JsonIgnore]
public MirroringType Mirroring { get; set; }
[JsonPropertyName("trained")]
public bool Trained { get; set; }
[JsonPropertyName("container_type")]
public NesContainerType ContainerType { get; set; }
[Flags]
public enum GameFlags
{
WillNotWorkOnNtsc = 0x01,
WillNotWorkOnPal = 0x02,
WillNotWorkOnDendy = 0x04,
WillNotWorkOnNewFamiclone = 0x08,
Hidden = 0x10,
Separator = 0x80,
};
public Game()
{
}
public Game(string filename, string? menuName = null, Dictionary<string, GameFix>? fixes = null)
{
// Separators
if (filename == "-")
{
MenuName = (string.IsNullOrWhiteSpace(menuName) || menuName == "-") ? "" : menuName;
FileName = "";
Flags |= GameFlags.Separator;
}
else
{
Console.WriteLine($"Loading {Path.GetFileName(filename)}...");
FileName = filename;
if (string.IsNullOrWhiteSpace(menuName))
{
// Menu name based on filename
MenuName = Limit(Regex.Replace(Path.GetFileNameWithoutExtension(filename), @"( ?\[.*?\])|( \(.\))", string.Empty).Replace("_", " ").ToUpper().Replace(", THE", "").Trim());
}
else
{
MenuName = Limit(menuName.Trim());
if (MenuName == "?") Flags |= GameFlags.Hidden;
}
string crc32;
string md5;
var ext = Path.GetExtension(filename);
if (ext == ".nes")
{
var nesFile = new NesFile(filename);
PRG = nesFile.PRG;
CHR = nesFile.CHR;
Battery = nesFile.Battery;
Mapper = $"{nesFile.Mapper:D3}" + ((nesFile.Submapper > 0) ? $":{nesFile.Submapper}" : "");
Mirroring = nesFile.Mirroring;
ContainerType = NesContainerType.iNES;
Trained = nesFile.Trainer != null && nesFile.Trainer.Length > 0;
if (nesFile.Version == NesFile.iNesVersion.NES20)
{
PrgRamSize = (int?)(nesFile.PrgRamSize + nesFile.PrgNvRamSize);
ChrRamSize = (int?)(nesFile.ChrRamSize + nesFile.ChrNvRamSize);
}
crc32 = $"{nesFile.CalculateCRC32():x08}";
var md5full = nesFile.CalculateMD5();
md5 = $"{md5full[8]:x02}{md5full[9]:x02}{md5full[10]:x02}{md5full[11]:x02}{md5full[12]:x02}{md5full[13]:x02}{md5full[14]:x02}{md5full[15]:x02}"; // lower 8 bytes of MD5
}
else if (ext == ".unf" || ext == ".unif")
{
var unifFile = new UnifFile(filename);
PRG = unifFile.Where(k => k.Key.StartsWith("PRG")).OrderBy(k => k.Key).SelectMany(i => i.Value).ToArray();
CHR = unifFile.Where(k => k.Key.StartsWith("CHR")).OrderBy(k => k.Key).SelectMany(i => i.Value).ToArray();
Battery = unifFile.Battery ?? false;
var mapper = unifFile.Mapper;
if (string.IsNullOrEmpty(mapper))
throw new InvalidDataException($"Mapper is not set in {Path.GetFileName(filename)}");
if (mapper.StartsWith("NES-") || mapper.StartsWith("UNL-") || mapper.StartsWith("HVC-") || mapper.StartsWith("BTL-") || mapper.StartsWith("BMC-"))
mapper = mapper.Substring(4);
Mapper = mapper;
Mirroring = unifFile.Mirroring ?? MirroringType.MapperControlled;
ContainerType = NesContainerType.UNIF;
crc32 = $"{unifFile.CalculateCRC32():x08}";
var md5full = unifFile.CalculateMD5();
md5 = $"{md5full[8]:x02}{md5full[9]:x02}{md5full[10]:x02}{md5full[11]:x02}{md5full[12]:x02}{md5full[13]:x02}{md5full[14]:x02}{md5full[15]:x02}"; // lower 8 bytes of MD5
}
else throw new InvalidDataException($"Unknown file extension: {ext}");
// Check for fixes database
if (fixes != null)
{
GameFix? fix;
if (fixes.TryGetValue(crc32, out fix) || fixes.TryGetValue(md5, out fix))
{
if (!string.IsNullOrEmpty(fix.Mapper) && Mapper != fix.Mapper)
{
Mapper = fix.Mapper;
Console.WriteLine($"Fix based on checksum: {Path.GetFileName(filename)} has {fix.Mapper} mapper");
}
if (!string.IsNullOrEmpty(fix.Mirroring) && (Mapper.ToString() != fix.Mirroring))
{
Mirroring = Enum.Parse<MirroringType>(fix.Mirroring);
Console.WriteLine($"Fix based on checksum: {Path.GetFileName(filename)} has {fix.Mirroring} mirroring type");
}
if (fix.PrgRamSize.HasValue && (PrgRamSize != fix.PrgRamSize * 1024))
{
PrgRamSize = (int?)(fix.PrgRamSize * 1024);
Console.WriteLine($"Fix based on checksum: {Path.GetFileName(filename)} has {fix.PrgRamSize}KB PRG RAM");
}
if (fix.ChrRamSize.HasValue && (ChrRamSize != fix.ChrRamSize * 1024))
{
ChrRamSize = (int?)(fix.ChrRamSize * 1024);
Console.WriteLine($"Fix based on checksum: {Path.GetFileName(filename)} has {fix.ChrRamSize}KB CHR RAM");
}
if (fix.Battery.HasValue && (Battery != fix.Battery.Value))
{
Battery = fix.Battery.Value;
Console.WriteLine($"Fix based on checksum: {Path.GetFileName(filename)} battery saves = {fix.Battery}");
}
if (fix.WillNotWorkOnPal)
{
Flags |= GameFlags.WillNotWorkOnPal;
}
if (fix.WillNotWorkOnNtsc)
{
Flags |= GameFlags.WillNotWorkOnNtsc;
}
if (fix.WillNotWorkOnDendy)
{
Flags |= GameFlags.WillNotWorkOnDendy;
}
if (fix.WillNotWorkOnNewFamiclone)
{
Flags |= GameFlags.WillNotWorkOnNewFamiclone;
}
}
}
// External NTRAM is not supported on new famiclones
if (Mirroring == MirroringType.FourScreenVram)
Flags |= GameFlags.WillNotWorkOnNewFamiclone;
// Check for round sizes and add padding
if (PRG.Length > 0)
{
uint roundSize = 1;
while (roundSize < PRG.Length)
roundSize <<= 1;
if (roundSize > PRG.Length)
{
PRG = Enumerable.Concat(PRG, Enumerable.Repeat(byte.MaxValue, (int)(roundSize - PRG.Length))).ToArray();
}
}
if (CHR.Length > 0)
{
uint roundSize = 1;
while (roundSize < CHR.Length)
roundSize <<= 1;
if (roundSize > CHR.Length)
CHR = Enumerable.Concat(CHR, Enumerable.Repeat(byte.MaxValue, (int)(roundSize - CHR.Length))).ToArray();
}
}
}
public bool IsHidden { get => (Flags & GameFlags.Hidden) != 0; }
public bool IsSeparator { get => (Flags & GameFlags.Separator) != 0; }
public override string ToString() => MenuName;
public static string Limit(string name)
{
name = name.Trim();
if (name.Length > 29) name = name.Substring(0, 26).Trim() + "...";
return name.Trim();
}
}
}
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