fix glitches in ScreenSelectGroup and ScreenSelectStyle

stepmania/src/ScreenManager.cpp

@@ -208,6 +208,11 @@ void ScreenManager::LoadPreppedScreen()
 	m_ScreenBuffered = NULL;
 }
 
+void ScreenManager::DeletePreppedScreen()
+{
+	SAFE_DELETE( m_ScreenBuffered );
+}
+
 void ScreenManager::SetNewScreen( Screen *pNewScreen )
 {
 	RefreshCreditsMessages();

stepmania/src/ScreenManager.h

@@ -39,6 +39,7 @@ public:
 
 	void PrepNewScreen( CString sClassName );
 	void LoadPreppedScreen();
+	void DeletePreppedScreen();
 	void SetNewScreen( CString sClassName );
 	void AddNewScreenToTop( CString sClassName );
 	void Prompt( ScreenMessage SM_SendWhenDone, CString sText, bool bYesNo = false, bool bDefaultAnswer = false, void(*OnYes)() = NULL, void(*OnNo)() = NULL );

stepmania/src/ScreenSelectMusic.cpp

@@ -219,7 +219,7 @@ ScreenSelectMusic::ScreenSelectMusic()
 	m_sprOptionsMessage.SetXY( CENTER_X, CENTER_Y );
 	m_sprOptionsMessage.SetZoom( 1 );
 	m_sprOptionsMessage.SetDiffuse( RageColor(1,1,1,0) );
-	this->AddChild( &m_sprOptionsMessage );
+	//this->AddChild( &m_sprOptionsMessage );	// we have to draw this manually over the top of transitions
 
 
 	m_soundSelect.Load( THEME->GetPathTo("Sounds","Common start") );
@@ -252,6 +252,7 @@ void ScreenSelectMusic::DrawPrimitives()
 	m_Menu.DrawBottomLayer();
 	Screen::DrawPrimitives();
 	m_Menu.DrawTopLayer();
+	m_sprOptionsMessage.Draw();
 }
 
 void ScreenSelectMusic::TweenOnScreen()
@@ -391,6 +392,8 @@ void ScreenSelectMusic::TweenScoreOnAndOffAfterChangeSort()
 void ScreenSelectMusic::Update( float fDeltaTime )
 {
 	Screen::Update( fDeltaTime );
+	m_sprOptionsMessage.Update( fDeltaTime );
+
 
 	if( m_fPlaySampleCountdown > 0 )
 	{
@@ -715,13 +718,15 @@ void ScreenSelectMusic::MenuStart( PlayerNumber pn )
 
 		if( !GAMESTATE->IsExtraStage()  &&  !GAMESTATE->IsExtraStage2() )
 		{
+			float fShowSeconds = m_Menu.m_Out.GetLengthSeconds();
+
 			// show "hold START for options"
 			m_sprOptionsMessage.SetDiffuse( RageColor(1,1,1,0) );
-			m_sprOptionsMessage.BeginTweening( 0.25f );	// fade in
+			m_sprOptionsMessage.BeginTweening( 0.15f );	// fade in
 			m_sprOptionsMessage.SetTweenZoomY( 1 );
 			m_sprOptionsMessage.SetTweenDiffuse( RageColor(1,1,1,1) );
-			m_sprOptionsMessage.BeginTweening( 2.0f );	// sleep
-			m_sprOptionsMessage.BeginTweening( 0.25f );	// fade out
+			m_sprOptionsMessage.BeginTweening( fShowSeconds-0.3f );	// sleep
+			m_sprOptionsMessage.BeginTweening( 0.15f );	// fade out
 			m_sprOptionsMessage.SetTweenDiffuse( RageColor(1,1,1,0) );
 			m_sprOptionsMessage.SetTweenZoomY( 0 );
 
@@ -730,7 +735,7 @@ void ScreenSelectMusic::MenuStart( PlayerNumber pn )
 			 * hit accidentally.  Accept an initial START right away, though,
 			 * so we don't ignore deliberate fast presses (which would be
 			 * annoying). */
-			this->SendScreenMessage( SM_AllowOptionsMenuRepeat, 0.75f );
+			this->SendScreenMessage( SM_AllowOptionsMenuRepeat, 0.5f );
 		}
 
 		m_Menu.StartTransitioning( SM_GoToNextScreen );

stepmania/src/ScreenStage.cpp

@@ -71,6 +71,9 @@ ScreenStage::ScreenStage()
 	m_In.StartTransitioning( SM_LoadPrepedScreen );
 	float fStartFadingOutSeconds = m_Background.GetLengthSeconds() - m_Out.GetLengthSeconds();
 	this->SendScreenMessage( SM_BeginFadingOut, fStartFadingOutSeconds );
+
+	m_Back.Load( THEME->GetPathTo("BGAnimations","Common back") );
+	this->AddChild( &m_Back );
 	
 	//g_StageType = (StageType)STAGE_TYPE; 
 
@@ -583,5 +586,18 @@ void ScreenStage::HandleScreenMessage( const ScreenMessage SM )
 	case SM_GoToNextScreen:
 		SCREENMAN->LoadPreppedScreen(); /* use prepped */
 		break;
+	case SM_GoToPrevScreen:
+		SCREENMAN->DeletePreppedScreen();
+		SCREENMAN->SetNewScreen( "ScreenSelectMusic" );
+		break;
 	}
 }
+
+void ScreenStage::MenuBack( PlayerNumber pn )
+{
+	if( m_In.IsTransitioning() || m_Out.IsTransitioning() || m_Back.IsTransitioning() )
+		return;
+
+	this->ClearMessageQueue();
+	m_Back.StartTransitioning( SM_GoToPrevScreen );
+}

stepmania/src/ScreenStage.h

@@ -20,6 +20,8 @@ public:
 	virtual void Update( float fDeltaTime );
 	virtual void DrawPrimitives();
 	virtual void HandleScreenMessage( const ScreenMessage SM );
+	
+	virtual void MenuBack( PlayerNumber pn );
 
 private:
 
@@ -49,7 +51,7 @@ private:
 
 	Quad			m_quadMask;		// write this into ZBuffer as a mask
 */
-	TransitionBGAnimation	m_In, m_Out;
+	TransitionBGAnimation	m_In, m_Out, m_Back;
 	BGAnimation				m_Background;
 
 protected: