moved TLyricsState from UMusic to UBeatTimer

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1752 b956fd51-792f-4845-bead-9b4dfca2ff2c

3 files changed, 171 insertions, 132 deletions

diff --git a/src/base/UBeatTimer.pas b/src/base/UBeatTimer.pas
new file mode 100644
index 00000000..1f5481fa
--- /dev/null
+++ b/src/base/UBeatTimer.pas
@@ -0,0 +1,168 @@
+                      {* 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/USingNotes.pas $

+ * $Id: USingNotes.pas 1406 2008-09-23 21:43:52Z k-m_schindler $

+ *}

+

+unit UBeatTimer;

+

+interface

+uses UTime;

+

+{$IFDEF FPC}

+  {$MODE Delphi}

+{$ENDIF}

+

+{$I switches.inc}

+

+type

+  (**

+   * TLyricsState contains all information concerning the

+   * state of the lyrics, e.g. the current beat or duration of the lyrics.

+   *)

+  TLyricsState = class

+    private

+      Timer:        TRelativeTimer; // keeps track of the current time

+    public

+      OldBeat:      integer;    // previous discovered beat

+      CurrentBeat:  integer;    // current beat (rounded)

+      MidBeat:      real;       // current beat (float)

+

+      // now we use this for super synchronization!

+      // only used when analyzing voice

+      // TODO: change ...D to ...Detect(ed)

+      OldBeatD:     integer;    // previous discovered beat

+      CurrentBeatD: integer;    // current discovered beat (rounded)

+      MidBeatD:     real;       // current discovered beat (float)

+

+      // we use this for audible clicks

+      // TODO: Change ...C to ...Click

+      OldBeatC:     integer;    // previous discovered beat

+      CurrentBeatC: integer;

+      MidBeatC:     real;       // like CurrentBeatC

+

+      OldLine:      integer;    // previous displayed sentence

+

+      StartTime:    real;       // time till start of lyrics (= Gap)

+      TotalTime:    real;       // total song time

+

+      constructor Create();

+      procedure Pause();

+      procedure Resume();

+

+      procedure Reset();

+      procedure UpdateBeats();

+

+      (**

+       * current song time (in seconds) used as base-timer for lyrics etc.

+       *)

+      function GetCurrentTime(): real;

+      procedure SetCurrentTime(Time: real);

+  end;

+

+implementation

+uses UNote, Math;

+

+

+constructor TLyricsState.Create();

+begin

+  // create a triggered timer, so we can Pause() it, set the time

+  // and Resume() it afterwards for better synching.

+  Timer := TRelativeTimer.Create(true);

+

+  // reset state

+  Reset();

+end;

+

+procedure TLyricsState.Pause();

+begin

+  Timer.Pause();

+end;

+

+procedure TLyricsState.Resume();

+begin

+  Timer.Resume();

+end;

+

+procedure TLyricsState.SetCurrentTime(Time: real);

+begin

+  // do not start the timer (if not started already),

+  // after setting the current time

+  Timer.SetTime(Time, false);

+end;

+

+function TLyricsState.GetCurrentTime(): real;

+begin

+  Result := Timer.GetTime();

+end;

+

+(**

+ * Resets the timer and state of the lyrics.

+ * The timer will be stopped afterwards so you have to call Resume()

+ * to start the lyrics timer. 

+ *)

+procedure TLyricsState.Reset();

+begin

+  Pause();

+  SetCurrentTime(0);

+

+  StartTime := 0;

+  TotalTime := 0;

+

+  OldBeat      := -1;

+  MidBeat      := -1;

+  CurrentBeat  := -1;

+

+  OldBeatC     := -1;

+  MidBeatC     := -1;

+  CurrentBeatC := -1;

+

+  OldBeatD     := -1;

+  MidBeatD     := -1;

+  CurrentBeatD := -1;

+end;

+

+(**

+ * Updates the beat information (CurrentBeat/MidBeat/...) according to the

+ * current lyric time.

+ *)

+procedure TLyricsState.UpdateBeats();

+var

+  CurLyricsTime: real;

+begin

+  CurLyricsTime := GetCurrentTime();

+

+  OldBeat := CurrentBeat;

+  MidBeat := GetMidBeat(CurLyricsTime - StartTime / 1000);

+  CurrentBeat := Floor(MidBeat);

+

+  OldBeatC := CurrentBeatC;

+  MidBeatC := GetMidBeat(CurLyricsTime - StartTime / 1000);

+  CurrentBeatC := Floor(MidBeatC);

+

+  OldBeatD := CurrentBeatD;

+  // MidBeatD = MidBeat with additional GAP

+  MidBeatD := -0.5 + GetMidBeat(CurLyricsTime - (StartTime + 120 + 20) / 1000);

+  CurrentBeatD := Floor(MidBeatD);

+end;

+

+end.
\ No newline at end of file
diff --git a/src/base/UMain.pas b/src/base/UMain.pas
index 469a658b..28ba5afc 100644
--- a/src/base/UMain.pas
+++ b/src/base/UMain.pas
@@ -83,6 +83,7 @@ uses
   UPath,
   UPlaylist,
   UMusic,
+  UBeatTimer,
   UPlatform,
   USkins,
   USongs,
diff --git a/src/base/UMusic.pas b/src/base/UMusic.pas
index b86f3aad..19c54bee 100644
--- a/src/base/UMusic.pas
+++ b/src/base/UMusic.pas
@@ -36,7 +36,8 @@ interface
 uses
   UTime,
   SysUtils,
-  Classes;
+  Classes,
+  UBeatTimer;
 
 type
   TNoteType = (ntFreestyle, ntNormal, ntGolden);
@@ -99,51 +100,6 @@ type
     Line:       array of TLine;
   end;
 
-  (**
-   * TLyricsState contains all information concerning the
-   * state of the lyrics, e.g. the current beat or duration of the lyrics.
-   *)
-  TLyricsState = class
-    private
-      Timer:        TRelativeTimer; // keeps track of the current time
-    public
-      OldBeat:      integer;    // previous discovered beat
-      CurrentBeat:  integer;    // current beat (rounded)
-      MidBeat:      real;       // current beat (float)
-
-      // now we use this for super synchronization!
-      // only used when analyzing voice
-      // TODO: change ...D to ...Detect(ed)
-      OldBeatD:     integer;    // previous discovered beat
-      CurrentBeatD: integer;    // current discovered beat (rounded)
-      MidBeatD:     real;       // current discovered beat (float)
-
-      // we use this for audible clicks
-      // TODO: Change ...C to ...Click
-      OldBeatC:     integer;    // previous discovered beat
-      CurrentBeatC: integer;
-      MidBeatC:     real;       // like CurrentBeatC
-
-      OldLine:      integer;    // previous displayed sentence
-
-      StartTime:    real;       // time till start of lyrics (= Gap)
-      TotalTime:    real;       // total song time
-
-      constructor Create();
-      procedure Pause();
-      procedure Resume();
-
-      procedure Reset();
-      procedure UpdateBeats();
-
-      (**
-       * current song time (in seconds) used as base-timer for lyrics etc.
-       *)
-      function GetCurrentTime(): real;
-      procedure SetCurrentTime(Time: real);
-  end;
-
-
 const
   FFTSize = 512; // size of FFT data (output: FFTSize/2 values)
 type
@@ -977,92 +933,6 @@ begin
   end;
 end;
 
-
-{ TVoiceRemoval }
-
-constructor TLyricsState.Create();
-begin
-  // create a triggered timer, so we can Pause() it, set the time
-  // and Resume() it afterwards for better synching.
-  Timer := TRelativeTimer.Create(true);
-
-  // reset state
-  Reset();
-end;
-
-procedure TLyricsState.Pause();
-begin
-  Timer.Pause();
-end;
-
-procedure TLyricsState.Resume();
-begin
-  Timer.Resume();
-end;
-
-procedure TLyricsState.SetCurrentTime(Time: real);
-begin
-  // do not start the timer (if not started already),
-  // after setting the current time
-  Timer.SetTime(Time, false);
-end;
-
-function TLyricsState.GetCurrentTime(): real;
-begin
-  Result := Timer.GetTime();
-end;
-
-(**
- * Resets the timer and state of the lyrics.
- * The timer will be stopped afterwards so you have to call Resume()
- * to start the lyrics timer. 
- *)
-procedure TLyricsState.Reset();
-begin
-  Pause();
-  SetCurrentTime(0);
-
-  StartTime := 0;
-  TotalTime := 0;
-
-  OldBeat      := -1;
-  MidBeat      := -1;
-  CurrentBeat  := -1;
-
-  OldBeatC     := -1;
-  MidBeatC     := -1;
-  CurrentBeatC := -1;
-
-  OldBeatD     := -1;
-  MidBeatD     := -1;
-  CurrentBeatD := -1;
-end;
-
-(**
- * Updates the beat information (CurrentBeat/MidBeat/...) according to the
- * current lyric time.
- *)
-procedure TLyricsState.UpdateBeats();
-var
-  CurLyricsTime: real;
-begin
-  CurLyricsTime := GetCurrentTime();
-
-  OldBeat := CurrentBeat;
-  MidBeat := GetMidBeat(CurLyricsTime - StartTime / 1000);
-  CurrentBeat := Floor(MidBeat);
-
-  OldBeatC := CurrentBeatC;
-  MidBeatC := GetMidBeat(CurLyricsTime - StartTime / 1000);
-  CurrentBeatC := Floor(MidBeatC);
-
-  OldBeatD := CurrentBeatD;
-  // MidBeatD = MidBeat with additional GAP
-  MidBeatD := -0.5 + GetMidBeat(CurLyricsTime - (StartTime + 120 + 20) / 1000);
-  CurrentBeatD := Floor(MidBeatD);
-end;
-
-
 { TAudioConverter }
 
 function TAudioConverter.Init(SrcFormatInfo: TAudioFormatInfo; DstFormatInfo: TAudioFormatInfo): boolean;