broadcast ChangeCourseSongIn/Out (deprecates CourseSongNumberChangeIn/Out)

more general way of showing graphics bound to the song number (still a hack, though)

stepmania/src/GameState.cpp

@@ -194,6 +194,7 @@ void GameState::Reset()
 	m_iCurrentStageIndex = 0;
 	m_bGameplayLeadIn.Set( false );
 	m_iNumStagesOfThisSong = 0;
+	m_bLoadingNextSong = false;
 
 	NOTESKIN->RefreshNoteSkinData( this->m_pCurGame );
 
@@ -758,6 +759,16 @@ int GameState::GetCourseSongIndex() const
 	return iSongIndex;
 }
 
+/* Hack: when we're loading a new course song, we want to display the new song number, even
+ * though we havn't started that song yet. */
+int GameState::GetLoadingCourseSongIndex() const
+{
+	int iIndex = GetCourseSongIndex();
+	if( m_bLoadingNextSong )
+		++iIndex;
+	return iIndex;
+}
+
 static LocalizedString PLAYER1	("GameState","Player 1");
 static LocalizedString PLAYER2	("GameState","Player 2");
 static LocalizedString CPU		("GameState","CPU");
@@ -1910,6 +1921,7 @@ public:
 	static int IsGoalComplete( T* p, lua_State *L )			{ lua_pushboolean(L, p->IsGoalComplete((PlayerNumber)IArg(1)) ); return 1; }
 	static int PlayerIsUsingModifier( T* p, lua_State *L )		{ lua_pushboolean(L, p->PlayerIsUsingModifier((PlayerNumber)IArg(1),SArg(2)) ); return 1; }
 	static int GetCourseSongIndex( T* p, lua_State *L )		{ lua_pushnumber(L, p->GetCourseSongIndex() ); return 1; }
+	static int GetLoadingCourseSongIndex( T* p, lua_State *L )	{ lua_pushnumber(L, p->GetLoadingCourseSongIndex() ); return 1; }
 	static int IsFinalStage( T* p, lua_State *L )			{ lua_pushboolean(L, p->IsFinalStage() ); return 1; }
 	static int IsExtraStage( T* p, lua_State *L )			{ lua_pushboolean(L, p->IsExtraStage() ); return 1; }
 	static int IsExtraStage2( T* p, lua_State *L )			{ lua_pushboolean(L, p->IsExtraStage2() ); return 1; }
@@ -2025,6 +2037,7 @@ public:
 		ADD_METHOD( IsGoalComplete );
 		ADD_METHOD( PlayerIsUsingModifier );
 		ADD_METHOD( GetCourseSongIndex );
+		ADD_METHOD( GetLoadingCourseSongIndex );
 		ADD_METHOD( IsFinalStage );
 		ADD_METHOD( IsExtraStage );
 		ADD_METHOD( IsExtraStage2 );

stepmania/src/GameState.h

@@ -132,6 +132,8 @@ public:
 	int				GetCourseSongIndex() const;
 	RString				GetPlayerDisplayName( PlayerNumber pn ) const;
 
+	bool				m_bLoadingNextSong;
+	int				GetLoadingCourseSongIndex() const;
 
 	//
 	// State Info used during gameplay

stepmania/src/ScreenGameplay.cpp

@@ -2435,19 +2435,23 @@ void ScreenGameplay::HandleScreenMessage( const ScreenMessage SM )
 
 		int iPlaySongIndex = GAMESTATE->GetCourseSongIndex()+1;
 		iPlaySongIndex %= m_apSongsQueue.size();
+		GAMESTATE->m_bLoadingNextSong = true;
 		MESSAGEMAN->Broadcast( "BeforeLoadingNextCourseSong" );
 		m_NextSong.Reset();
 		m_NextSong.PlayCommand( "Start" );
 		m_NextSong.StartTransitioning( SM_LoadNextSong );
 		LoadCourseSongNumber( GAMESTATE->GetCourseSongIndex()+1 );
+		MESSAGEMAN->Broadcast( "ChangeCourseSongIn" );
 		COMMAND( m_sprCourseSongNumber, "ChangeIn" );
 	}
 	else if( SM == SM_LoadNextSong )
 	{
 		SongFinished();
 
+		MESSAGEMAN->Broadcast( "ChangeCourseSongOut" );
 		COMMAND( m_sprCourseSongNumber, "ChangeOut" );
 
+		GAMESTATE->m_bLoadingNextSong = false;
 		LoadNextSong();
 
 		m_NextSong.Reset();