/// <summary>
/// This creates a GameType instance by checking the current ROM
/// </summary>
public static Game FromROM(DataManager ROM)
{
byte[] id_data = Core.ReadData(new Pointer(ID_ADDRESS), 0x12);
String id = new String(Encoding.ASCII.GetChars(id_data));
GameVersion version = 0;
char game = ' ';
foreach (GameVersion region in Enum.GetValues(typeof(GameVersion)))
{
if (region == GameVersion.JAP)
{
if (id.Equals(FE6.GameID(region)))
{
game = '6'; version = region; break;
}
}
if (id.Equals(FE7.GameID(region)))
{
game = '7'; version = region; break;
}
if (id.Equals(FE8.GameID(region)))
{
game = '8'; version = region; break;
}
}
bool clean;
bool expanded;
switch (game)
{
case '6':
expanded = (Core.CurrentROMSize == FE6.DefaultFileSize(version));
clean = (CRC32.GetChecksum(ROM.FileData) == FE6.Checksum(version));
break;
case '7':
expanded = (Core.CurrentROMSize == FE7.DefaultFileSize(version));
clean = (CRC32.GetChecksum(ROM.FileData) == FE7.Checksum(version));
break;
case '8':
expanded = (Core.CurrentROMSize == FE8.DefaultFileSize(version));
clean = (CRC32.GetChecksum(ROM.FileData) == FE8.Checksum(version));
break;
default: throw new Exception("The Fire Emblem game ID could not be identified.");
}
switch (game)
{
case '6': return(new FE6(version, clean, expanded));
case '7': return(new FE7(version, clean, expanded));
case '8': return(new FE8(version, clean, expanded));
default: return(null);
}
}
