add quick settling

stepmania/src/GradeDisplay.cpp

@@ -18,6 +18,7 @@
 
 
 const float SCROLL_TIME = 5.0f;
+const float QUICK_SCROLL_TIME = .25f;
 const int NUM_GRADE_FRAMES = 7;
 const float GRADE_FRAME_HEIGHT = 1/(float)NUM_GRADE_FRAMES;
 const float GRADES_TO_SCROLL = NUM_GRADE_FRAMES*4;
@@ -29,7 +30,7 @@ GradeDisplay::GradeDisplay()
 	StopAnimating();
 
 	m_fTimeLeftInScroll = 0;
-	m_bDoScrolling = false;
+	m_bDoScrolling = 0;
 
 	SetGrade( PLAYER_1, GRADE_NO_DATA );
 }
@@ -43,21 +44,26 @@ void GradeDisplay::Update( float fDeltaTime )
 		m_fTimeLeftInScroll -= fDeltaTime;
 		m_fTimeLeftInScroll = max( 0, m_fTimeLeftInScroll );
 
-		float fPercentIntoScrolling = 1 - (m_fTimeLeftInScroll/SCROLL_TIME);
-		if( fPercentIntoScrolling < 0.75 )
-			fPercentIntoScrolling = (fPercentIntoScrolling/0.75f) * (1 + 1.0f/NUM_GRADE_FRAMES);
-		else if( fPercentIntoScrolling < 0.9 )
-			fPercentIntoScrolling = 1 + 1.0f/NUM_GRADE_FRAMES;
-		else
-			fPercentIntoScrolling = (1 + 1.0f/NUM_GRADE_FRAMES) - ((fPercentIntoScrolling-0.9f)/0.1f) * 1.0f/NUM_GRADE_FRAMES;
+		float fPercentIntoScrolling;
+		if( m_bDoScrolling == 1)
+		{
+			fPercentIntoScrolling = 1 - (m_fTimeLeftInScroll/SCROLL_TIME);
+			if( fPercentIntoScrolling < 0.75 )
+				fPercentIntoScrolling = (fPercentIntoScrolling/0.75f) * (1 + 1.0f/NUM_GRADE_FRAMES);
+			else if( fPercentIntoScrolling < 0.9 )
+				fPercentIntoScrolling = 1 + 1.0f/NUM_GRADE_FRAMES;
+			else
+				fPercentIntoScrolling = (1 + 1.0f/NUM_GRADE_FRAMES) - ((fPercentIntoScrolling-0.9f)/0.1f) * 1.0f/NUM_GRADE_FRAMES;
+		} else {
+			fPercentIntoScrolling = 1 - (m_fTimeLeftInScroll/QUICK_SCROLL_TIME);
+		}
+		
+		m_frectCurTexCoords.left   = m_frectStartTexCoords.left*(1-fPercentIntoScrolling)   + m_frectDestTexCoords.left*fPercentIntoScrolling;
+		m_frectCurTexCoords.top    = m_frectStartTexCoords.top*(1-fPercentIntoScrolling)    + m_frectDestTexCoords.top*fPercentIntoScrolling;
+		m_frectCurTexCoords.right  = m_frectStartTexCoords.right*(1-fPercentIntoScrolling)  + m_frectDestTexCoords.right*fPercentIntoScrolling;
+		m_frectCurTexCoords.bottom = m_frectStartTexCoords.bottom*(1-fPercentIntoScrolling) + m_frectDestTexCoords.bottom*fPercentIntoScrolling;
 
-		RectF frectCurrentTextureCoords;
-		frectCurrentTextureCoords.left   = m_frectStartTexCoords.left*(1-fPercentIntoScrolling)   + m_frectDestTexCoords.left*fPercentIntoScrolling;
-		frectCurrentTextureCoords.top    = m_frectStartTexCoords.top*(1-fPercentIntoScrolling)    + m_frectDestTexCoords.top*fPercentIntoScrolling;
-		frectCurrentTextureCoords.right  = m_frectStartTexCoords.right*(1-fPercentIntoScrolling)  + m_frectDestTexCoords.right*fPercentIntoScrolling;
-		frectCurrentTextureCoords.bottom = m_frectStartTexCoords.bottom*(1-fPercentIntoScrolling) + m_frectDestTexCoords.bottom*fPercentIntoScrolling;
-
-		this->SetCustomTextureRect( frectCurrentTextureCoords );
+		this->SetCustomTextureRect( m_frectCurTexCoords );
 	}
 }
 
@@ -120,9 +126,33 @@ void GradeDisplay::SpinAndSettleOn( Grade g )
 	m_frectStartTexCoords.bottom += GRADES_TO_SCROLL * GRADE_FRAME_HEIGHT;
 
 	m_fTimeLeftInScroll = SCROLL_TIME;
+
+	/* Set the initial position. */
+	Update(0);
 }
 
 void GradeDisplay::SettleImmediately()
 {
 	m_fTimeLeftInScroll = 0;
 }
+
+void GradeDisplay::SettleQuickly()
+{
+	if(m_bDoScrolling != 1)
+		return;
+
+	/* m_frectDestTexCoords.top is between 0 and 1 (inclusive).  m_frectCurTexCoords
+	 * is somewhere above that.  Shift m_frectCurTexCoords downwards so it's pointing
+	 * at the same physical place (remember, the grade texture is tiled) but no more
+	 * than one rotation away from the destination. */
+	while(m_frectCurTexCoords.top > m_frectDestTexCoords.top + 1.0f)
+	{
+		m_frectCurTexCoords.top -= 1.0f;
+		m_frectCurTexCoords.bottom -= 1.0f;
+	}
+
+	m_frectStartTexCoords = m_frectCurTexCoords;
+	m_bDoScrolling = 2;
+	m_fTimeLeftInScroll = QUICK_SCROLL_TIME;
+}
+

stepmania/src/GradeDisplay.h

@@ -28,15 +28,17 @@ public:
 	void SetGrade( PlayerNumber pn, Grade g );
 	void SpinAndSettleOn( Grade g );
 	void SettleImmediately();
+	void SettleQuickly();
 
 protected:
 	
 	Grade m_Grade;
 
-	// for scrolling
-	bool  m_bDoScrolling;
+	// for scrolling; 0 = no, 1 = normal, 2 = quick
+	int  m_bDoScrolling;
 	RectF m_frectStartTexCoords;
 	RectF m_frectDestTexCoords;
+	RectF m_frectCurTexCoords;
 	float m_fTimeLeftInScroll;
 };
 

stepmania/src/ScreenEvaluation.cpp

@@ -837,6 +837,16 @@ void ScreenEvaluation::HandleScreenMessage( const ScreenMessage SM )
 	}
 }
 
+void ScreenEvaluation::MenuLeft( PlayerNumber pn )
+{
+	m_Grades[pn].SettleQuickly();
+}
+
+void ScreenEvaluation::MenuRight( PlayerNumber pn )
+{
+	m_Grades[pn].SettleQuickly();
+}
+
 void ScreenEvaluation::MenuBack( PlayerNumber pn )
 {
 	MenuStart( pn );

stepmania/src/ScreenEvaluation.h

@@ -38,6 +38,8 @@ public:
 
 	virtual void TweenOnScreen();
 	virtual void TweenOffScreen();
+	virtual void MenuLeft( PlayerNumber pn );
+	virtual void MenuRight( PlayerNumber pn );
 	virtual void MenuBack( PlayerNumber pn );
 	virtual void MenuStart( PlayerNumber pn );