558 lines
25 KiB
C#
558 lines
25 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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namespace VocaluxeLib.Songs
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{
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/// <summary>
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/// Part of CSong that is required for note loading
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/// </summary>
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public partial class CSong
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{
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private class CSongLoader
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{
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private readonly CSong _Song;
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public CSongLoader(CSong song)
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{
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_Song = song;
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}
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public bool InitPaths(string filePath)
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{
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if (!File.Exists(filePath))
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return false;
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_Song.Folder = Path.GetDirectoryName(filePath);
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if (_Song.Folder == null)
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return false;
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foreach (string folder in CBase.Config.GetSongFolders().Where(folder => _Song.Folder.StartsWith(folder)))
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{
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if (_Song.Folder.Length == folder.Length)
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_Song.FolderName = "Songs";
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else
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{
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_Song.FolderName = _Song.Folder.Substring(folder.Length + 1);
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int pos = _Song.FolderName.IndexOf("\\", StringComparison.Ordinal);
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if (pos >= 0)
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_Song.FolderName = _Song.FolderName.Substring(0, pos);
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}
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break;
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}
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_Song.FileName = Path.GetFileName(filePath);
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return true;
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}
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private void _LogReadError(string error, int lineNr)
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{
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CBase.Log.LogError(error + " in line #" + lineNr + "(" + Path.Combine(_Song.Folder, _Song.FileName) + ")");
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}
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public bool ReadHeader(Encoding encoding = null)
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{
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string filePath = Path.Combine(_Song.Folder, _Song.FileName);
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if (!File.Exists(filePath))
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return false;
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_Song.Language.Clear();
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_Song.Genre.Clear();
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_Song._Comment.Clear();
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var headerFlags = new EHeaderFlags();
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StreamReader sr = null;
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int lineNr = 0;
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try
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{
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sr = new StreamReader(filePath, Encoding.Default, true);
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while (!sr.EndOfStream)
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{
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string line = sr.ReadLine();
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lineNr++;
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if (line == "")
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continue;
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if (!line[0].Equals('#'))
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break;
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int pos = line.IndexOf(":", StringComparison.Ordinal);
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if (pos <= 1)
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continue;
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string identifier = line.Substring(1, pos - 1).Trim().ToUpper();
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string value = line.Substring(pos + 1).Trim();
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if (value == "")
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{
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_LogReadError("Warning: Empty value skipped", lineNr);
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continue;
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}
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switch (identifier)
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{
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case "ENCODING":
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if (encoding != null)
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{
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_LogReadError("Warning: Duplicate encoding ignored", lineNr);
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continue;
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}
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Encoding newEncoding = CEncoding.GetEncoding(value);
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if (!newEncoding.Equals(sr.CurrentEncoding))
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{
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sr.Dispose();
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sr = null;
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return ReadHeader(_Song.Encoding);
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}
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break;
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case "TITLE":
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_Song.Title = value;
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headerFlags |= EHeaderFlags.Title;
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break;
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case "ARTIST":
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_Song.Artist = value;
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headerFlags |= EHeaderFlags.Artist;
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break;
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case "TITLE-ON-SORTING":
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_Song.TitleSorting = value;
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break;
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case "ARTIST-ON-SORTING":
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_Song.ArtistSorting = value;
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break;
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case "DUETSINGERP1":
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case "P1":
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_Song.Notes.VoiceNames[0] = value;
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break;
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case "DUETSINGERP2":
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case "P2":
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_Song.Notes.VoiceNames[1] = value;
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break;
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case "MP3":
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if (File.Exists(Path.Combine(_Song.Folder, value)))
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{
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_Song.MP3FileName = value;
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headerFlags |= EHeaderFlags.MP3;
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}
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else
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{
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_LogReadError("Error: Can't find audio file: " + Path.Combine(_Song.Folder, value), lineNr);
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return false;
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}
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break;
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case "BPM":
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if (CHelper.TryParse(value, out _Song.BPM))
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{
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_Song.BPM *= 4;
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headerFlags |= EHeaderFlags.BPM;
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}
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else
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_LogReadError("Warning: Invalid BPM value", lineNr);
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break;
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case "EDITION":
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if (value.Length > 1)
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_Song.Edition.Add(value);
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else
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_LogReadError("Warning: Invalid edition", lineNr);
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break;
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case "GENRE":
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if (value.Length > 1)
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_Song.Genre.Add(value);
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else
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_LogReadError("Warning: Invalid genre", lineNr);
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break;
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case "YEAR":
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int num;
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if (value.Length == 4 && int.TryParse(value, out num) && num > 0)
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_Song.Year = value;
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else
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_LogReadError("Warning: Invalid year", lineNr);
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break;
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case "LANGUAGE":
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if (value.Length > 1)
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_Song.Language.Add(value);
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else
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_LogReadError("Warning: Invalid language", lineNr);
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break;
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case "COMMENT":
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if (value.Length > 1)
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_Song._Comment.Add(value);
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else
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_LogReadError("Warning: Invalid comment", lineNr);
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break;
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case "GAP":
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if (CHelper.TryParse(value, out _Song.Gap))
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_Song.Gap /= 1000f;
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else
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_LogReadError("Warning: Invalid gap", lineNr);
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break;
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case "COVER":
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if (File.Exists(Path.Combine(_Song.Folder, value)))
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_Song.CoverFileName = value;
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else
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_LogReadError("Warning: Can't find cover file: " + Path.Combine(_Song.Folder, value), lineNr);
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break;
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case "BACKGROUND":
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if (File.Exists(Path.Combine(_Song.Folder, value)))
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_Song.BackgroundFileName = value;
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else
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_LogReadError("Warning: Can't find background file: " + Path.Combine(_Song.Folder, value), lineNr);
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break;
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case "VIDEO":
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if (File.Exists(Path.Combine(_Song.Folder, value)))
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_Song.VideoFileName = value;
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else
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CBase.Log.LogError("Warning: Can't find video file: " + Path.Combine(_Song.Folder, value));
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break;
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case "VIDEOGAP":
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if (!CHelper.TryParse(value, out _Song.VideoGap))
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_LogReadError("Warning: Invalid videogap", lineNr);
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break;
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case "VIDEOASPECT":
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if (!CHelper.TryParse(value, out _Song.VideoAspect, true))
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_LogReadError("Warning: Invalid videoaspect", lineNr);
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break;
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case "START":
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if (!CHelper.TryParse(value, out _Song.Start))
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_LogReadError("Warning: Invalid start", lineNr);
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break;
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case "END":
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if (CHelper.TryParse(value, out _Song.Finish))
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_Song.Finish /= 1000f;
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else
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_LogReadError("Warning: Invalid end", lineNr);
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break;
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case "PREVIEWSTART":
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if (CHelper.TryParse(value, out _Song.PreviewStart) && _Song.PreviewStart >= 0f)
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headerFlags |= EHeaderFlags.PreviewStart;
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else
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_LogReadError("Warning: Invalid previewstart", lineNr);
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break;
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case "MEDLEYSTARTBEAT":
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if (int.TryParse(value, out _Song.Medley.StartBeat))
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headerFlags |= EHeaderFlags.MedleyStartBeat;
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else
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_LogReadError("Warning: Invalid medleystartbeat", lineNr);
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break;
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case "MEDLEYENDBEAT":
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if (int.TryParse(value, out _Song.Medley.EndBeat))
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headerFlags |= EHeaderFlags.MedleyEndBeat;
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else
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_LogReadError("Warning: Invalid medleyendbeat", lineNr);
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break;
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case "CALCMEDLEY":
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if (value.ToUpper() == "OFF")
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_Song.CalculateMedley = false;
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break;
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case "RELATIVE":
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if (value.ToUpper() == "YES")
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_Song.Relative = true;
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break;
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}
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} //end of while
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if (sr.EndOfStream)
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{
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//No other data then header
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CBase.Log.LogError("Lyrics/Notes missing: " + filePath);
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return false;
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}
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if ((headerFlags & EHeaderFlags.Title) == 0)
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{
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CBase.Log.LogError("Title tag missing: " + filePath);
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return false;
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}
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if ((headerFlags & EHeaderFlags.Artist) == 0)
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{
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CBase.Log.LogError("Artist tag missing: " + filePath);
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return false;
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}
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if ((headerFlags & EHeaderFlags.MP3) == 0)
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{
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CBase.Log.LogError("MP3 tag missing: " + filePath);
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return false;
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}
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if ((headerFlags & EHeaderFlags.BPM) == 0)
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{
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CBase.Log.LogError("BPM tag missing: " + filePath);
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return false;
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}
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#region check medley tags
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if ((headerFlags & EHeaderFlags.MedleyStartBeat) != 0 && (headerFlags & EHeaderFlags.MedleyEndBeat) != 0)
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{
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if (_Song.Medley.StartBeat > _Song.Medley.EndBeat)
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{
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CBase.Log.LogError("MedleyStartBeat is bigger than MedleyEndBeat in file: " + filePath);
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headerFlags = headerFlags - EHeaderFlags.MedleyStartBeat - EHeaderFlags.MedleyEndBeat;
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}
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}
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if ((headerFlags & EHeaderFlags.PreviewStart) == 0 || _Song.PreviewStart < 0)
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{
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//PreviewStart is not set or <=0
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_Song.PreviewStart = (headerFlags & EHeaderFlags.MedleyStartBeat) != 0 ? CBase.Game.GetTimeFromBeats(_Song.Medley.StartBeat, _Song.BPM) : 0f;
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}
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if ((headerFlags & EHeaderFlags.MedleyStartBeat) != 0 && (headerFlags & EHeaderFlags.MedleyEndBeat) != 0)
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{
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_Song.Medley.Source = EMedleySource.Tag;
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_Song.Medley.FadeInTime = CBase.Settings.GetDefaultMedleyFadeInTime();
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_Song.Medley.FadeOutTime = CBase.Settings.GetDefaultMedleyFadeOutTime();
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}
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#endregion check medley tags
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_Song.Encoding = sr.CurrentEncoding;
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}
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catch (Exception e)
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{
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if (sr != null)
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sr.Dispose();
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_LogReadError("Error reading txt header" + e.Message, lineNr);
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return false;
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}
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sr.Dispose();
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_Song._CheckFiles();
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CBase.DataBase.GetDataBaseSongInfos(_Song.Artist, _Song.Title, out _Song.NumPlayed, out _Song.DateAdded, out _Song.DataBaseSongID);
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//Before saving this tags to .txt: Check, if ArtistSorting and Artist are equal, then don't save this tag.
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if (_Song.ArtistSorting == "")
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_Song.ArtistSorting = _Song.Artist;
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if (_Song.TitleSorting == "")
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_Song.TitleSorting = _Song.Title;
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return true;
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}
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public bool ReadNotes()
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{
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return _ReadNotes();
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}
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private bool _ReadNotes(bool forceReload = false)
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{
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//Skip loading if already done and no reload is forced
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if (_Song.NotesLoaded && !forceReload)
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return true;
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string filePath = Path.Combine(_Song.Folder, _Song.FileName);
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if (!File.Exists(filePath))
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{
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CBase.Log.LogError("Error loading song. The file does not exist: " + filePath);
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return false;
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}
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int currentBeat = 0; //Used for relative songs
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int lastNoteEnd = 0;
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bool endFound = false;
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int player = 1;
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int lineNr = 0;
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char[] trimChars = {' ', ':'};
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char[] splitChars = {' '};
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StreamReader sr = null;
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try
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{
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sr = new StreamReader(filePath, _Song.Encoding);
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_Song.Notes.Reset();
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//Search for Note Beginning
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while (!sr.EndOfStream && !endFound)
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{
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string line = sr.ReadLine();
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lineNr++;
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if (String.IsNullOrEmpty(line))
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continue;
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char tag = line[0];
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//Remove tag and potential space
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line = (line.Length >= 2 && line[1] == ' ') ? line.Substring(2) : line.Substring(1);
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int beat, length;
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switch (tag)
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{
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case '#':
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continue;
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case 'E':
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endFound = true;
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break;
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case 'P':
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line = line.Trim(trimChars);
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if (!int.TryParse(line, out player))
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{
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_LogReadError("Error: Wrong or missing number after \"P\"", lineNr);
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return false;
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}
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sr.ReadLine();
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break;
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case ':':
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case '*':
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case 'F':
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string[] noteData = line.Split(splitChars, 4);
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if (noteData.Length < 4)
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{
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if (noteData.Length == 3)
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{
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_LogReadError("Warning: Ignored note without text", lineNr);
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continue;
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}
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_LogReadError("Error: Invalid note found", lineNr);
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sr.Dispose();
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return false;
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}
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int tone;
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if (!int.TryParse(noteData[0], out beat) || !int.TryParse(noteData[1], out length) || !int.TryParse(noteData[2], out tone))
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{
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_LogReadError("Error: Invalid note found (non-numeric values)", lineNr);
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sr.Dispose();
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return false;
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}
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string text = noteData[3];
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if (text.Trim() == "")
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{
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_LogReadError("Warning: Ignored note without text", lineNr);
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continue;
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}
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if (length < 1)
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_LogReadError("Warning: Ignored note with length < 1", lineNr);
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else
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{
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ENoteType noteType;
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if (tag.Equals('*'))
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noteType = ENoteType.Golden;
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else if (tag.Equals('F'))
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noteType = ENoteType.Freestyle;
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else
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noteType = ENoteType.Normal;
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if (_Song.Relative)
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beat += currentBeat;
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int curPlayer = 0;
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int tmpPlayer = player;
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//Evaluate as bitset
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while (tmpPlayer > 0)
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{
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if ((tmpPlayer & 1) != 0)
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{
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if (!_ParseNote(curPlayer, noteType, beat, length, tone, text))
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_LogReadError("Warning: Ignored note for player " + (curPlayer + 1) + " because it overlaps with other note", lineNr);
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}
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tmpPlayer >>= 1;
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curPlayer++;
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}
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}
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lastNoteEnd = beat + length;
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break;
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case '-':
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string[] lineBreakData = line.Split(splitChars);
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if (lineBreakData.Length < 1)
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{
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_LogReadError("Error: Invalid line break found (No beat)", lineNr);
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sr.Dispose();
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return false;
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}
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if (!int.TryParse(lineBreakData[0], out beat))
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{
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_LogReadError("Error: Invalid line break found (Non-numeric value)", lineNr);
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sr.Dispose();
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return false;
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}
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if (_Song.Relative)
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{
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beat += currentBeat;
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if (lineBreakData.Length < 2 || !int.TryParse(lineBreakData[1], out length))
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_LogReadError("Warning: Missing line break length", lineNr);
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else
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currentBeat += length;
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}
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if (beat < lastNoteEnd)
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{
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_LogReadError("Warning: Line break is before previous note end. Adjusted it (might not work for relative songs)", lineNr);
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beat = lastNoteEnd;
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}
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if (beat < 1)
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_LogReadError("Warning: Ignored line break because position is < 1", lineNr);
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else
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{
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int curPlayer = 0;
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int tmpPlayer = player;
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//Evaluate as bitset
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while (tmpPlayer > 0)
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{
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if ((tmpPlayer & 1) != 0)
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{
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if (_NewSentence(curPlayer, beat))
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_LogReadError("Warning: Ignored line break for player " + (curPlayer + 1) + " (Overlapping or duplicate)", lineNr);
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}
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tmpPlayer >>= 1;
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curPlayer++;
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}
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}
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break;
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default:
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_LogReadError("Error loading song. Unexpected or missing character (" + tag + ")", lineNr);
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return false;
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}
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}
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foreach (CVoice voice in _Song.Notes.Voices)
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voice.UpdateTimings();
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}
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catch (Exception e)
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{
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_LogReadError("Error: An unhandled exception occured (" + e.Message + ")", lineNr);
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if (sr != null)
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sr.Dispose();
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return false;
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}
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sr.Dispose();
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try
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{
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_Song._FindRefrain();
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_Song._FindShortEnd();
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_Song.NotesLoaded = true;
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if (_Song.IsDuet)
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_Song._CheckDuet();
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}
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catch (Exception e)
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{
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CBase.Log.LogError("Error loading song. An unhandled exception occured (" + e.Message + "): " + filePath);
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return false;
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}
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return true;
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}
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private bool _ParseNote(int player, ENoteType noteType, int start, int length, int tone, string text)
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{
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var note = new CSongNote(start, length, tone, text, noteType);
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CVoice voice = _Song.Notes.GetVoice(player);
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return voice.AddNote(note, false);
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}
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private bool _NewSentence(int player, int start)
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{
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CVoice voice = _Song.Notes.GetVoice(player);
|
|
return voice.AddLine(start);
|
|
}
|
|
}
|
|
}
|
|
} |