Initial commit.

code/ff/ff_MultiEffect.h

@@ -0,0 +1,59 @@
+#ifndef MULTIEFFECT_H
+#define MULTIEFFECT_H
+
+//#include "common_headers.h"
+//#include "ifc.h"
+
+////-----------
+///	MultiEffect
+//---------------
+//	CImmCompoundEffect makes no assumption that its contained effects form a more
+//	complex, single effect. MultiEffect makes this assumption and provides member
+//	functions available in CImmEffect to operate on this "complex" effect.
+//
+//	Do not instantiate. (Do not call constructor)
+//	Instead, cast existing CImmCompoundEffect* to MultiEffect*
+//	Utility functions are specific to the needs of this system.
+//
+class MultiEffect : public CImmCompoundEffect
+{
+public:
+	// dummy constructor
+	MultiEffect() : CImmCompoundEffect( NULL, 0, NULL ) {}	// Never call (cast instead)
+
+	// CImmEffect extensions
+	qboolean GetStatus( DWORD &Status );
+	qboolean GetStartDelay( DWORD &StartDelay );
+	qboolean GetDuration( DWORD &Duration );
+	qboolean GetGain( DWORD &Gain );
+	qboolean ChangeDuration( DWORD Duration );
+	qboolean ChangeGain( DWORD Gain );
+	qboolean ChangeStartDelay( DWORD StartDelay );
+
+	// utility functions
+	qboolean GetDelayEnd( DWORD &DelayEnd );
+	qboolean IsBeyondStartDelay()
+	{
+		DWORD DelayEnd;
+		return qboolean
+		(	GetDelayEnd( DelayEnd )
+		&&	DelayEnd < ::GetTickCount()		// Does not account for counter overflow.
+		);
+	}
+	qboolean IsPlaying()
+	{
+		DWORD Status; 
+		return qboolean( GetStatus( Status ) && (Status & IMM_STATUS_PLAYING) );
+	}
+
+	// CImmCompoundEffect overrides
+	qboolean Start( DWORD dwIterations = IMM_EFFECT_DONT_CHANGE, DWORD dwFlags = 0 )
+	{
+		return qboolean
+		(	IsBeyondStartDelay()
+		&&	CImmCompoundEffect::Start( dwIterations, dwFlags )
+		);
+	}
+};
+
+#endif // MULTIEFFECT_H