{

// Sound Guid

int m_nGuid;

void* m_filenameHandle; // filesystem filename handle - call IFilesystem to conver this to a string

int m_nSoundSource;

int m_nChannel;

// If a sound is being played through a speaker entity (e.g., on a monitor,), this is the

// entity upon which to show the lips moving, if the sound has sentence data

int m_nSpeakerEntity;

float m_flVolume;

float m_flLastSpatializedVolume;

// Radius of this sound effect (spatialization is different within the radius)

float m_flRadius;

int m_nPitch;

Vector *m_pOrigin;

Vector *m_pDirection;

// if true, assume sound source can move and update according to entity

bool m_bUpdatePositions;

// true if playing linked sentence

bool m_bIsSentence;

// if true, bypass all dsp processing for this sound (ie: music)

bool m_bDryMix;

// true if sound is playing through in-game speaker entity.

bool m_bSpeaker;

// for snd_show, networked sounds get colored differently than local sounds

bool m_bFromServer;

{

SNDLVL_NONE = 0,

SNDLVL_20dB = 20, // rustling leaves

SNDLVL_25dB = 25, // whispering

SNDLVL_30dB = 30, // library

SNDLVL_35dB = 35,

SNDLVL_40dB = 40,

SNDLVL_45dB = 45, // refrigerator

SNDLVL_50dB = 50, // 3.9 // average home

SNDLVL_55dB = 55, // 3.0

SNDLVL_IDLE = 60, // 2.0

SNDLVL_60dB = 60, // 2.0 // normal conversation, clothes dryer

SNDLVL_65dB = 65, // 1.5 // washing machine, dishwasher

SNDLVL_STATIC = 66, // 1.25

SNDLVL_70dB = 70, // 1.0 // car, vacuum cleaner, mixer, electric sewing machine

SNDLVL_NORM = 75,

SNDLVL_75dB = 75, // 0.8 // busy traffic

SNDLVL_80dB = 80, // 0.7 // mini-bike, alarm clock, noisy restaurant, office tabulator, outboard motor, passing snowmobile

SNDLVL_TALKING = 80, // 0.7

SNDLVL_85dB = 85, // 0.6 // average factory, electric shaver

SNDLVL_90dB = 90, // 0.5 // screaming child, passing motorcycle, convertible ride on frw

SNDLVL_95dB = 95,

SNDLVL_100dB = 100, // 0.4 // subway train, diesel truck, woodworking shop, pneumatic drill, boiler shop, jackhammer

SNDLVL_105dB = 105, // helicopter, power mower

SNDLVL_110dB = 110, // snowmobile drvrs seat, inboard motorboat, sandblasting

SNDLVL_120dB = 120, // auto horn, propeller aircraft

SNDLVL_130dB = 130, // air raid siren

SNDLVL_GUNFIRE = 140, // 0.27 // THRESHOLD OF PAIN, gunshot, jet engine

SNDLVL_140dB = 140, // 0.2

SNDLVL_150dB = 150, // 0.2

SNDLVL_180dB = 180, // rocket launching

// NOTE: Valid soundlevel_t values are 0-255.

// 256-511 are reserved for sounds using goldsrc compatibility attenuation.

{

// Precache a particular sample

virtual bool PrecacheSound(const char *pSample, bool bPreload = false, bool bIsUISound = false) = 0;

virtual bool IsSoundPrecached(const char *pSample) = 0;

virtual void PrefetchSound(const char *pSample) = 0;

virtual bool IsLoopingSound(const char *pSample) = 0;

// Just loads the file header and checks for duration (not hooked up for .mp3's yet)

// Is accessible to server and client though

virtual float GetSoundDuration(const char *pSample) = 0;

// Pitch of 100 is no pitch shift. Pitch > 100 up to 255 is a higher pitch, pitch < 100

// down to 1 is a lower pitch. 150 to 70 is the realistic range.

// EmitSound with pitch != 100 should be used sparingly, as it's not quite as

// fast (the pitchshift mixer is not native coded).

// NOTE: setting iEntIndex to -1 will cause the sound to be emitted from the local

// player (client-side only)

virtual int EmitSound(IRecipientFilter& filter, int iEntIndex, int iChannel, const char *pSoundEntry, unsigned int nSoundEntryHash, const char *pSample,

float flVolume, float flAttenuation, int nSeed, int iFlags = 0, int iPitch = PITCH_NORM,

const Vector *pOrigin = NULL, const Vector *pDirection = NULL, CUtlVector< Vector >* pUtlVecOrigins = NULL, bool bUpdatePositions = true, float soundtime = 0.0f, int speakerentity = -1) = 0;

virtual int EmitSound(IRecipientFilter& filter, int iEntIndex, int iChannel, const char *pSoundEntry, unsigned int nSoundEntryHash, const char *pSample,

float flVolume, soundlevel_t iSoundlevel, int nSeed, int iFlags = 0, int iPitch = PITCH_NORM,

const Vector *pOrigin = NULL, const Vector *pDirection = NULL, CUtlVector< Vector >* pUtlVecOrigins = NULL, bool bUpdatePositions = true, float soundtime = 0.0f, int speakerentity = -1) = 0;

virtual void EmitSentenceByIndex(IRecipientFilter& filter, int iEntIndex, int iChannel, int iSentenceIndex,

float flVolume, soundlevel_t iSoundlevel, int nSeed, int iFlags = 0, int iPitch = PITCH_NORM,

const Vector *pOrigin = NULL, const Vector *pDirection = NULL, CUtlVector< Vector >* pUtlVecOrigins = NULL, bool bUpdatePositions = true, float soundtime = 0.0f, int speakerentity = -1) = 0;

virtual void StopSound(int iEntIndex, int iChannel, const char *pSample, unsigned int nSoundEntryHash) = 0;

virtual void StopAllSounds(bool bClearBuffers) = 0;

virtual void SetRoomType(IRecipientFilter& filter, int roomType) = 0;

virtual void SetPlayerDSP(IRecipientFilter& filter, int dspType, bool fastReset) = 0;

virtual int EmitAmbientSound(const char *pSample, float flVolume, int iPitch = PITCH_NORM, int flags = 0, float soundtime = 0.0f) = 0;

virtual float GetDistGainFromSoundLevel(soundlevel_t soundlevel, float dist) = 0;

virtual int GetGuidForLastSoundEmitted() = 0;

virtual bool IsSoundStillPlaying(int guid) = 0;

virtual void StopSoundByGuid(int guid, bool bForceSync) = 0;

virtual void SetVolumeByGuid(int guid, float fvol) = 0;

virtual void GetActiveSounds(CUtlVector<SndInfo_t>& sndlist) = 0;

virtual void PrecacheSentenceGroup(const char *pGroupName) = 0;

virtual void NotifyBeginMoviePlayback() = 0;

virtual void NotifyEndMoviePlayback() = 0;

virtual bool GetSoundChannelVolume(const char* sound, float &flVolumeLeft, float &flVolumeRight) = 0;

virtual float GetElapsedTimeByGuid(int guid) = 0;