1 files changed, 91 insertions, 0 deletions
diff --git a/game/shared/soundenvelope.h b/game/shared/soundenvelope.h
new file mode 100644
index 0000000..5a84b59
--- /dev/null
+++ b/game/shared/soundenvelope.h
@@ -0,0 +1,91 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef SOUNDENVELOPE_H
+#define SOUNDENVELOPE_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "engine/IEngineSound.h"
+
+class CSoundPatch;
+
+enum soundcommands_t
+{
+	SOUNDCTRL_CHANGE_VOLUME,
+	SOUNDCTRL_CHANGE_PITCH,
+	SOUNDCTRL_STOP,
+	SOUNDCTRL_DESTROY,
+};
+
+//Envelope point
+struct envelopePoint_t
+{
+	float	amplitudeMin, amplitudeMax;
+	float	durationMin, durationMax;
+};
+
+//Envelope description
+struct envelopeDescription_t
+{
+	envelopePoint_t	*pPoints;
+	int				nNumPoints;
+};
+
+class IRecipientFilter;
+
+abstract_class CSoundEnvelopeController
+{
+public:
+	virtual void		SystemReset( void ) = 0;
+	virtual void		SystemUpdate( void ) = 0;
+	virtual void		Play( CSoundPatch *pSound, float volume, float pitch, float flStartTime = 0 ) = 0;
+	virtual void		CommandAdd( CSoundPatch *pSound, float executeDeltaTime, soundcommands_t command, float commandTime, float value ) = 0;
+	virtual void		CommandClear( CSoundPatch *pSound ) = 0;
+	virtual void		Shutdown( CSoundPatch *pSound ) = 0;
+
+	virtual CSoundPatch	*SoundCreate( IRecipientFilter& filter, int nEntIndex, const char *pSoundName ) = 0;
+	virtual CSoundPatch	*SoundCreate( IRecipientFilter& filter, int nEntIndex, int channel, const char *pSoundName, 
+							float attenuation ) = 0;
+	virtual CSoundPatch	*SoundCreate( IRecipientFilter& filter, int nEntIndex, int channel, const char *pSoundName, 
+							soundlevel_t soundlevel ) = 0;
+	virtual CSoundPatch	*SoundCreate( IRecipientFilter& filter, int nEntIndex, const EmitSound_t &es ) = 0;
+	virtual void		SoundDestroy( CSoundPatch	* ) = 0;
+	virtual void		SoundChangePitch( CSoundPatch *pSound, float pitchTarget, float deltaTime ) = 0;
+	virtual void		SoundChangeVolume( CSoundPatch *pSound, float volumeTarget, float deltaTime ) = 0;
+	virtual void		SoundFadeOut( CSoundPatch *pSound, float deltaTime, bool destroyOnFadeout = false ) = 0;
+	virtual float		SoundGetPitch( CSoundPatch *pSound ) = 0;
+	virtual float		SoundGetVolume( CSoundPatch *pSound ) = 0;
+	
+	virtual float		SoundPlayEnvelope( CSoundPatch *pSound, soundcommands_t soundCommand, envelopePoint_t *points, int numPoints ) = 0;
+	virtual float		SoundPlayEnvelope( CSoundPatch *pSound, soundcommands_t soundCommand, envelopeDescription_t *envelope ) = 0;
+
+	virtual void		CheckLoopingSoundsForPlayer( CBasePlayer *pPlayer ) = 0;
+
+	virtual string_t	SoundGetName( CSoundPatch *pSound ) = 0;
+	static	CSoundEnvelopeController &GetController( void );
+
+	virtual void		SoundSetCloseCaptionDuration( CSoundPatch *pSound, float flDuration ) = 0;
+};
+
+
+//-----------------------------------------------------------------------------
+// Save/restore
+//-----------------------------------------------------------------------------
+class ISaveRestoreOps;
+
+ISaveRestoreOps *GetSoundSaveRestoreOps( );
+
+#define DEFINE_SOUNDPATCH(name) \
+	{ FIELD_CUSTOM, #name, { offsetof(classNameTypedef,name), 0 }, 1, FTYPEDESC_SAVE, NULL, GetSoundSaveRestoreOps( ), NULL }
+
+
+#endif // SOUNDENVELOPE_H