add GetDestTweenState and SetTweenState

stepmania/src/Actor.cpp

@@ -336,6 +336,16 @@ void Actor::SetTweenDiffuseBottomEdge( RageColor c )	{ LatestTween().diffuse[2]
 void Actor::SetTweenDiffuseLeftEdge( RageColor c )		{ LatestTween().diffuse[0] = LatestTween().diffuse[2] = c; };
 void Actor::SetTweenGlow( RageColor c )					{ LatestTween().glow = c; };
 
+Actor::TweenState Actor::GetDestTweenState()
+{
+	if(!m_iNumTweenStates) return m_current;
+	return LatestTween();
+}
+
+void Actor::SetTweenState( const Actor::TweenState &ts )
+{
+	LatestTween() = ts;
+}
 
 void Actor::ScaleTo( const RectI &rect, StretchType st )
 {

stepmania/src/Actor.h

@@ -132,8 +132,6 @@ public:
 	virtual void SetTweenDiffuseLeftEdge( RageColor colorDiffuse );
 	virtual void SetTweenGlow( RageColor c );
 	
-
-	
 	enum StretchType { fit_inside, cover };
 
 	void ScaleToCover( const RectI &rect )		{ ScaleTo( rect, cover ); }
@@ -188,10 +186,6 @@ public:
 	void FadeOff( float fSleepSeconds, CString sFadeString, float fFadeSeconds )	{ Fade(fSleepSeconds,sFadeString,fFadeSeconds,true); };
 
 
-protected:
-
-	bool	m_bFirstUpdate;
-
 	//
 	// Stuff for tweening
 	//
@@ -215,6 +209,15 @@ protected:
 		};
 	};
 
+	/* Intended for a very limited use: you can query the destination
+	 * state (that is, where the actor would end up if its tween finished),
+	 * stop tweening (possibly leaving it partially tweened), do something,
+	 * then tween to the original destination. */
+	virtual TweenState GetDestTweenState();
+	virtual void SetTweenState( const TweenState &ts );
+
+protected:
+
 	struct TweenInfo
 	{
 		// counters for tweening
@@ -243,6 +246,8 @@ protected:
 	RageColor   m_temp_colorGlow;
 */
 
+	bool	m_bFirstUpdate;
+
 	//
 	// Stuff for alignment
 	//