package funkin.data.song.migrator; import funkin.data.song.SongData.SongMetadata; import funkin.data.song.SongData.SongPlayData; import funkin.data.song.SongData.SongCharacterData; import funkin.data.song.migrator.SongData_v2_0_0.SongMetadata_v2_0_0; import funkin.data.song.migrator.SongData_v2_0_0.SongPlayData_v2_0_0; import funkin.data.song.migrator.SongData_v2_0_0.SongPlayableChar_v2_0_0; /** * This class contains functions to migrate older data formats to the current one. * * Utilizes static extensions with overloaded inline functions to make migration as easy as `.migrate()`. * @see https://try.haxe.org/#e1c1cf22 */ class SongDataMigrator { public static overload extern inline function migrate(input:SongData_v2_0_0.SongMetadata_v2_0_0):SongMetadata { return migrate_SongMetadata_v2_0_0(input); } public static function migrate_SongMetadata_v2_0_0(input:SongData_v2_0_0.SongMetadata_v2_0_0):SongMetadata { var result:SongMetadata = new SongMetadata(input.songName, input.artist, input.variation); result.version = input.version; result.timeFormat = input.timeFormat; result.divisions = input.divisions; result.timeChanges = input.timeChanges; result.looped = input.looped; result.playData = migrate_SongPlayData_v2_0_0(input.playData); result.generatedBy = input.generatedBy; return result; } public static overload extern inline function migrate(input:SongData_v2_0_0.SongPlayData_v2_0_0):SongPlayData { return migrate_SongPlayData_v2_0_0(input); } public static function migrate_SongPlayData_v2_0_0(input:SongData_v2_0_0.SongPlayData_v2_0_0):SongPlayData { var result:SongPlayData = new SongPlayData(); result.songVariations = input.songVariations; result.difficulties = input.difficulties; result.stage = input.stage; result.noteSkin = input.noteSkin; // Fetch the first playable character and migrate it. var firstCharKey:Null<String> = input.playableChars.size() == 0 ? null : input.playableChars.keys().array()[0]; var firstCharData:Null<SongPlayableChar_v2_0_0> = input.playableChars.get(firstCharKey); if (firstCharData == null) { // Fill in a default playable character. result.characters = new SongCharacterData('bf', 'gf', 'dad'); } else { result.characters = new SongCharacterData(firstCharKey, firstCharData.girlfriend, firstCharData.opponent, firstCharData.inst); } return result; } }