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Diffstat (limited to 'src/base/UNote.pas')
-rw-r--r-- | src/base/UNote.pas | 593 |
1 files changed, 593 insertions, 0 deletions
diff --git a/src/base/UNote.pas b/src/base/UNote.pas new file mode 100644 index 00000000..5e70bfe1 --- /dev/null +++ b/src/base/UNote.pas @@ -0,0 +1,593 @@ +{* UltraStar Deluxe - Karaoke Game + * + * UltraStar Deluxe is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * $URL: https://ultrastardx.svn.sourceforge.net/svnroot/ultrastardx/trunk/src/base/UNote.pas $ + * $Id: UNote.pas 1626 2009-03-07 19:53:00Z k-m_schindler $ + *} + +unit UNote; + +interface + +{$IFDEF FPC} + {$MODE Delphi} +{$ENDIF} + +{$I switches.inc} + +uses + SysUtils, + Classes, + SDL, + UMusic, + URecord, + UTime, + UDisplay, + UIni, + ULog, + ULyrics, + UScreenSing, + USong, + gl; + +type + PPLayerNote = ^TPlayerNote; + TPlayerNote = record + Start: integer; + Length: integer; + Detect: real; // accurate place, detected in the note + Tone: real; + Perfect: boolean; // true if the note matches the original one, light the star + Hit: boolean; // true if the note hits the line + end; + + PPLayer = ^TPlayer; + TPlayer = record + Name: string; + + // Index in Teaminfo record + TeamID: byte; + PlayerID: byte; + + // Scores + Score: real; + ScoreLine: real; + ScoreGolden: real; + + ScoreInt: integer; + ScoreLineInt: integer; + ScoreGoldenInt: integer; + ScoreTotalInt: integer; + + // LineBonus + ScoreLast: real; // Last Line Score + + // PerfectLineTwinkle (effect) + LastSentencePerfect: boolean; + + HighNote: integer; // index of last note (= High(Note)?) + LengthNote: integer; // number of notes (= Length(Note)?). + Note: array of TPlayerNote; + end; + +var + + // player and music info + Player: array of TPlayer; + PlayersPlay: integer; + + CurrentSong: TSong; + +const + MAX_SONG_SCORE = 10000; // max. achievable points per song + MAX_SONG_LINE_BONUS = 1000; // max. achievable line bonus per song + +procedure Sing(Screen: TScreenSing); +procedure NewSentence(Screen: TScreenSing); +procedure NewBeatClick(Screen: TScreenSing); // executed when on then new beat for click +procedure NewBeatDetect(Screen: TScreenSing); // executed when on then new beat for detection +procedure NewNote(Screen: TScreenSing); // detect note +function GetMidBeat(Time: real): real; +function GetTimeFromBeat(Beat: integer): real; + +implementation + +uses + Math, + StrUtils, + USongs, + UJoystick, + UCommandLine, + ULanguage, + //SDL_ttf, + USkins, + UCovers, + UCatCovers, + UDataBase, + UPlaylist, + UDLLManager, + UParty, + UConfig, + UCore, + UCommon, + UGraphic, + UGraphicClasses, + UPath, + UPluginDefs, + UPlatform, + UThemes; + +function GetTimeForBeats(BPM, Beats: real): real; +begin + Result := 60 / BPM * Beats; +end; + +function GetBeats(BPM, msTime: real): real; +begin + Result := BPM * msTime / 60; +end; + +procedure GetMidBeatSub(BPMNum: integer; var Time: real; var CurBeat: real); +var + NewTime: real; +begin + if High(CurrentSong.BPM) = BPMNum then + begin + // last BPM + CurBeat := CurrentSong.BPM[BPMNum].StartBeat + GetBeats(CurrentSong.BPM[BPMNum].BPM, Time); + Time := 0; + end + else + begin + // not last BPM + // count how much time is it for start of the new BPM and store it in NewTime + NewTime := GetTimeForBeats(CurrentSong.BPM[BPMNum].BPM, CurrentSong.BPM[BPMNum+1].StartBeat - CurrentSong.BPM[BPMNum].StartBeat); + + // compare it to remaining time + if (Time - NewTime) > 0 then + begin + // there is still remaining time + CurBeat := CurrentSong.BPM[BPMNum].StartBeat; + Time := Time - NewTime; + end + else + begin + // there is no remaining time + CurBeat := CurrentSong.BPM[BPMNum].StartBeat + GetBeats(CurrentSong.BPM[BPMNum].BPM, Time); + Time := 0; + end; // if + end; // if +end; + +function GetMidBeat(Time: real): real; +var + CurBeat: real; + CurBPM: integer; +begin + // static BPM + if Length(CurrentSong.BPM) = 1 then + begin + Result := Time * CurrentSong.BPM[0].BPM / 60; + end + // variable BPM + else if Length(CurrentSong.BPM) > 1 then + begin + CurBeat := 0; + CurBPM := 0; + while (Time > 0) do + begin + GetMidBeatSub(CurBPM, Time, CurBeat); + Inc(CurBPM); + end; + + Result := CurBeat; + end + // invalid BPM + else + begin + Result := 0; + end; +end; + +function GetTimeFromBeat(Beat: integer): real; +var + CurBPM: integer; +begin + // static BPM + if Length(CurrentSong.BPM) = 1 then + begin + Result := CurrentSong.GAP / 1000 + Beat * 60 / CurrentSong.BPM[0].BPM; + end + // variable BPM + else if Length(CurrentSong.BPM) > 1 then + begin + Result := CurrentSong.GAP / 1000; + CurBPM := 0; + while (CurBPM <= High(CurrentSong.BPM)) and + (Beat > CurrentSong.BPM[CurBPM].StartBeat) do + begin + if (CurBPM < High(CurrentSong.BPM)) and + (Beat >= CurrentSong.BPM[CurBPM+1].StartBeat) then + begin + // full range + Result := Result + (60 / CurrentSong.BPM[CurBPM].BPM) * + (CurrentSong.BPM[CurBPM+1].StartBeat - CurrentSong.BPM[CurBPM].StartBeat); + end; + + if (CurBPM = High(CurrentSong.BPM)) or + (Beat < CurrentSong.BPM[CurBPM+1].StartBeat) then + begin + // in the middle + Result := Result + (60 / CurrentSong.BPM[CurBPM].BPM) * + (Beat - CurrentSong.BPM[CurBPM].StartBeat); + end; + Inc(CurBPM); + end; + + { + while (Time > 0) do + begin + GetMidBeatSub(CurBPM, Time, CurBeat); + Inc(CurBPM); + end; + } + end + // invalid BPM + else + begin + Result := 0; + end; +end; + +procedure Sing(Screen: TScreenSing); +var + Count: integer; + CountGr: integer; + CP: integer; +begin + LyricsState.UpdateBeats(); + + // sentences routines + for CountGr := 0 to 0 do //High(Lines) + begin; + CP := CountGr; + // old parts + LyricsState.OldLine := Lines[CP].Current; + + // choose current parts + for Count := 0 to Lines[CP].High do + begin + if LyricsState.CurrentBeat >= Lines[CP].Line[Count].Start then + Lines[CP].Current := Count; + end; + + // clean player note if there is a new line + // (optimization on halfbeat time) + if Lines[CP].Current <> LyricsState.OldLine then + NewSentence(Screen); + + end; // for CountGr + + // make some operations on clicks + if {(LyricsState.CurrentBeatC >= 0) and }(LyricsState.OldBeatC <> LyricsState.CurrentBeatC) then + NewBeatClick(Screen); + + // make some operations when detecting new voice pitch + if (LyricsState.CurrentBeatD >= 0) and (LyricsState.OldBeatD <> LyricsState.CurrentBeatD) then + NewBeatDetect(Screen); +end; + +procedure NewSentence(Screen: TScreenSing); +var + i: integer; +begin + // clean note of player + for i := 0 to High(Player) do + begin + Player[i].LengthNote := 0; + Player[i].HighNote := -1; + SetLength(Player[i].Note, 0); + end; + + // on sentence change... + Screen.onSentenceChange(Lines[0].Current); +end; + +procedure NewBeatClick; +var + Count: integer; +begin + // beat click + if ((Ini.BeatClick = 1) and + ((LyricsState.CurrentBeatC + Lines[0].Resolution + Lines[0].NotesGAP) mod Lines[0].Resolution = 0)) then + begin + AudioPlayback.PlaySound(SoundLib.Click); + end; + + for Count := 0 to Lines[0].Line[Lines[0].Current].HighNote do + begin + if (Lines[0].Line[Lines[0].Current].Note[Count].Start = LyricsState.CurrentBeatC) then + begin + // click assist + if Ini.ClickAssist = 1 then + AudioPlayback.PlaySound(SoundLib.Click); + + // drum machine + (* + TempBeat := LyricsState.CurrentBeat; // + 2; + if (TempBeat mod 8 = 0) then Music.PlayDrum; + if (TempBeat mod 8 = 4) then Music.PlayClap; + //if (TempBeat mod 4 = 2) then Music.PlayHihat; + if (TempBeat mod 4 <> 0) then Music.PlayHihat; + *) + end; + end; +end; + +procedure NewBeatDetect(Screen: TScreenSing); +begin + NewNote(Screen); +end; + +procedure NewNote(Screen: TScreenSing); +var + LineFragmentIndex: integer; + CurrentLineFragment: PLineFragment; + PlayerIndex: integer; + CurrentSound: TCaptureBuffer; + CurrentPlayer: PPlayer; + LastPlayerNote: PPlayerNote; + Line: PLine; + SentenceIndex: integer; + SentenceMin: integer; + SentenceMax: integer; + SentenceDetected: integer; // sentence of detected note + NoteAvailable: boolean; + NewNote: boolean; + Range: integer; + NoteHit: boolean; + MaxSongPoints: integer; // max. points for the song (without line bonus) + CurNotePoints: real; // Points for the cur. Note (PointsperNote * ScoreFactor[CurNote]) +begin + // TODO: add duet mode support + // use Lines[LineSetIndex] with LineSetIndex depending on the current player + + // count min and max sentence range for checking + // (detection is delayed to the notes we see on the screen) + SentenceMin := Lines[0].Current-1; + if (SentenceMin < 0) then + SentenceMin := 0; + SentenceMax := Lines[0].Current; + + // check for an active note at the current time defined in the lyrics + NoteAvailable := false; + SentenceDetected := SentenceMin; + for SentenceIndex := SentenceMin to SentenceMax do + begin + Line := @Lines[0].Line[SentenceIndex]; + for LineFragmentIndex := 0 to Line.HighNote do + begin + CurrentLineFragment := @Line.Note[LineFragmentIndex]; + // check if line is active + if ((CurrentLineFragment.Start <= LyricsState.CurrentBeatD) and + (CurrentLineFragment.Start + CurrentLineFragment.Length-1 >= LyricsState.CurrentBeatD)) and + (CurrentLineFragment.NoteType <> ntFreestyle) and // but ignore FreeStyle notes + (CurrentLineFragment.Length > 0) then // and make sure the note length is at least 1 + begin + SentenceDetected := SentenceIndex; + NoteAvailable := true; + Break; + end; + end; + // TODO: break here, if NoteAvailable is true? We would then use the first instead + // of the last note matching the current beat if notes overlap. But notes + // should not overlap at all. + // if (NoteAvailable) then + // Break; + end; + + // analyze player signals + for PlayerIndex := 0 to PlayersPlay-1 do + begin + CurrentPlayer := @Player[PlayerIndex]; + CurrentSound := AudioInputProcessor.Sound[PlayerIndex]; + + // at the beginning of the song there is no previous note + if (Length(CurrentPlayer.Note) > 0) then + LastPlayerNote := @CurrentPlayer.Note[CurrentPlayer.HighNote] + else + LastPlayerNote := nil; + + // analyze buffer + CurrentSound.AnalyzeBuffer; + + // add some noise + // TODO: do we need this? + //LyricsState.Tone := LyricsState.Tone + Round(Random(3)) - 1; + + // add note if possible + if (CurrentSound.ToneValid and NoteAvailable) then + begin + Line := @Lines[0].Line[SentenceDetected]; + + // process until last note + for LineFragmentIndex := 0 to Line.HighNote do + begin + CurrentLineFragment := @Line.Note[LineFragmentIndex]; + if (CurrentLineFragment.Start <= LyricsState.OldBeatD+1) and + (CurrentLineFragment.Start + CurrentLineFragment.Length > LyricsState.OldBeatD+1) then + begin + // compare notes (from song-file and from player) + + // move players tone to proper octave + while (CurrentSound.Tone - CurrentLineFragment.Tone > 6) do + CurrentSound.Tone := CurrentSound.Tone - 12; + + while (CurrentSound.Tone - CurrentLineFragment.Tone < -6) do + CurrentSound.Tone := CurrentSound.Tone + 12; + + // half size notes patch + NoteHit := false; + + // if Ini.Difficulty = 0 then Range := 2; + // if Ini.Difficulty = 1 then Range := 1; + // if Ini.Difficulty = 2 then Range := 0; + Range := 2 - Ini.Difficulty; + + // check if the player hit the correct tone within the tolerated range + if (Abs(CurrentLineFragment.Tone - CurrentSound.Tone) <= Range) then + begin + // adjust the players tone to the correct one + // TODO: do we need to do this? + // Philipp: I think we do, at least when we draw the notes. + // Otherwise the notehit thing would be shifted to the + // correct unhit note. I think this will look kind of strange. + CurrentSound.Tone := CurrentLineFragment.Tone; + + // half size notes patch + NoteHit := true; + + if (Ini.LineBonus > 0) then + MaxSongPoints := MAX_SONG_SCORE - MAX_SONG_LINE_BONUS + else + MaxSongPoints := MAX_SONG_SCORE; + + // Note: ScoreValue is the sum of all note values of the song + // (MaxSongPoints / ScoreValue) is the points that a player + // gets for a hit of one beat of a normal note + // CurNotePoints is the amount of points that is meassured + // for a hit of the note per full beat + CurNotePoints := (MaxSongPoints / Lines[0].ScoreValue) * ScoreFactor[CurrentLineFragment.NoteType]; + + case CurrentLineFragment.NoteType of + ntNormal: CurrentPlayer.Score := CurrentPlayer.Score + CurNotePoints; + ntGolden: CurrentPlayer.ScoreGolden := CurrentPlayer.ScoreGolden + CurNotePoints; + end; + + // a problem if we use floor instead of round is that a score of + // 10000 points is only possible if the last digit of the total points + // for golden and normal notes is 0. + // if we use round, the max score is 10000 for most songs + // but a score of 10010 is possible if the last digit of the total + // points for golden and normal notes is 5 + // the best solution is to use round for one of these scores + // and round the other score in the opposite direction + // so we assure that the highest possible score is 10000 in every case. + CurrentPlayer.ScoreInt := round(CurrentPlayer.Score / 10) * 10; + + if (CurrentPlayer.ScoreInt < CurrentPlayer.Score) then + //normal score is floored so we have to ceil golden notes score + CurrentPlayer.ScoreGoldenInt := ceil(CurrentPlayer.ScoreGolden / 10) * 10 + else + //normal score is ceiled so we have to floor golden notes score + CurrentPlayer.ScoreGoldenInt := floor(CurrentPlayer.ScoreGolden / 10) * 10; + + + CurrentPlayer.ScoreTotalInt := CurrentPlayer.ScoreInt + + CurrentPlayer.ScoreGoldenInt + + CurrentPlayer.ScoreLineInt; + end; + + end; // operation + end; // for + + // check if we have to add a new note or extend the note's length + if (SentenceDetected = SentenceMax) then + begin + // we will add a new note + NewNote := true; + + // if previous note (if any) was the same, extend previous note + if ((CurrentPlayer.LengthNote > 0) and + (LastPlayerNote <> nil) and + (LastPlayerNote.Tone = CurrentSound.Tone) and + ((LastPlayerNote.Start + LastPlayerNote.Length) = LyricsState.CurrentBeatD)) then + begin + NewNote := false; + end; + + // if is not as new note to control + for LineFragmentIndex := 0 to Line.HighNote do + begin + if (Line.Note[LineFragmentIndex].Start = LyricsState.CurrentBeatD) then + NewNote := true; + end; + + // add new note + if NewNote then + begin + // new note + Inc(CurrentPlayer.LengthNote); + Inc(CurrentPlayer.HighNote); + SetLength(CurrentPlayer.Note, CurrentPlayer.LengthNote); + + // update player's last note + LastPlayerNote := @CurrentPlayer.Note[CurrentPlayer.HighNote]; + with LastPlayerNote^ do + begin + Start := LyricsState.CurrentBeatD; + Length := 1; + Tone := CurrentSound.Tone; // Tone || ToneAbs + Detect := LyricsState.MidBeat; + Hit := NoteHit; // half note patch + end; + end + else + begin + // extend note length + if (LastPlayerNote <> nil) then + Inc(LastPlayerNote.Length); + end; + + // check for perfect note and then light the star (on Draw) + for LineFragmentIndex := 0 to Line.HighNote do + begin + CurrentLineFragment := @Line.Note[LineFragmentIndex]; + if (CurrentLineFragment.Start = LastPlayerNote.Start) and + (CurrentLineFragment.Length = LastPlayerNote.Length) and + (CurrentLineFragment.Tone = LastPlayerNote.Tone) then + begin + LastPlayerNote.Perfect := true; + end; + end; + end; // if SentenceDetected = SentenceMax + + end; // if Detected + end; // for PlayerIndex + + //Log.LogStatus('EndBeat', 'NewBeat'); + + // on sentence end -> for LineBonus and display of SingBar (rating pop-up) + if (SentenceDetected >= Low(Lines[0].Line)) and + (SentenceDetected <= High(Lines[0].Line)) then + begin + Line := @Lines[0].Line[SentenceDetected]; + CurrentLineFragment := @Line.Note[Line.HighNote]; + if ((CurrentLineFragment.Start + CurrentLineFragment.Length - 1) = LyricsState.CurrentBeatD) then + begin + if assigned(Screen) then + Screen.OnSentenceEnd(SentenceDetected); + end; + end; + +end; + +end. |