added TransitionBGAnimation

stepmania/src/TransitionBGAnimation.h

@@ -0,0 +1,49 @@
+#ifndef TransitionBGAnimation_H
+#define TransitionBGAnimation_H
+/*
+-----------------------------------------------------------------------------
+ Class: TransitionBGAnimation
+
+ Desc: TransitionBGAnimation that draws BGAnimation.
+
+ Copyright (c) 2001-2002 by the person(s) listed below.  All rights reserved.
+	Chris Danford
+-----------------------------------------------------------------------------
+*/
+
+#include "Actor.h"
+#include "BGAnimation.h"
+#include "ScreenMessage.h"
+
+
+class TransitionBGAnimation : public Actor
+{
+public:
+	TransitionBGAnimation();
+
+	void Load( CString sBGAniDir );
+
+	virtual void Update( float fDeltaTime );
+	virtual void DrawPrimitives();
+
+	virtual void StartTransitioning( ScreenMessage send_when_done );
+
+	bool IsTransitioning()	{ return m_State == transitioning; };
+
+protected:
+
+	enum State { 
+		waiting,	
+		transitioning, 
+		finished 
+	} m_State;
+	float	m_fSecsIntoTransition;
+
+
+	BGAnimation	m_BGAnimation;
+
+	ScreenMessage	m_MessageToSendWhenDone;
+};
+
+
+#endif