tetrees/Plugins/Wwise/ThirdParty/include/AK/SoundEngine/Common/AkQueryParameters.h

/*******************************************************************************
The content of this file includes portions of the AUDIOKINETIC Wwise Technology
released in source code form as part of the SDK installer package.

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Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology
may use this file in accordance with the end user license agreement provided 
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the specific language governing permissions and limitations under the License.

  Copyright (c) 2023 Audiokinetic Inc.
*******************************************************************************/

// AkQueryParameters.h

/// \file 
/// The sound engine parameter query interface.


#ifndef _AK_QUERYPARAMS_H_
#define _AK_QUERYPARAMS_H_

#include <AK/SoundEngine/Common/AkSoundEngineExport.h>
#include <AK/SoundEngine/Common/AkTypes.h>
#include <AK/SoundEngine/Common/AkCommonDefs.h>
#include <AK/Tools/Common/AkArray.h>

/// Positioning information obtained from an object
struct AkPositioningInfo
{
	AkReal32			fCenterPct;			///< Center % [0..1]
	AkSpeakerPanningType	pannerType;		///< Speaker panning type: type of panning logic when object is not 3D spatialized.
	Ak3DPositionType	e3dPositioningType;	///< 3D position type: defines what acts as the emitter position for computing spatialization against the listener. 
	bool				bHoldEmitterPosAndOrient;   ///< Hold emitter position and orientation values when starting playback.
	Ak3DSpatializationMode e3DSpatializationMode; ///< Spatialization mode
	bool				bEnableAttenuation;	///< Attenuation parameter set is active.

	bool				bUseConeAttenuation; ///< Use the cone attenuation
	AkReal32			fInnerAngle;		///< Inner angle
	AkReal32			fOuterAngle;		///< Outer angle
	AkReal32			fConeMaxAttenuation; ///< Cone max attenuation
	AkLPFType			LPFCone;			///< Cone low pass filter value
	AkLPFType			HPFCone;			///< Cone low pass filter value

	AkReal32			fMaxDistance;		///< Maximum distance
	AkReal32			fVolDryAtMaxDist;	///< Volume dry at maximum distance
	AkReal32			fVolAuxGameDefAtMaxDist;	///< Volume wet at maximum distance (if any) (based on the Game defined distance attenuation)
	AkReal32			fVolAuxUserDefAtMaxDist;	///< Volume wet at maximum distance (if any) (based on the User defined distance attenuation)
	AkLPFType			LPFValueAtMaxDist;  ///< Low pass filter value at max distance (if any)
	AkLPFType			HPFValueAtMaxDist;  ///< High pass filter value at max distance (if any)
};

/// Object information structure for QueryAudioObjectsIDs
struct AkObjectInfo
{
	AkUniqueID	objID;		///< Object ID
	AkUniqueID	parentID;	///< Object ID of the parent 
	AkInt32		iDepth;		///< Depth in tree
};

// Audiokinetic namespace
namespace AK
{
	// Audiokinetic sound engine namespace
	namespace SoundEngine
	{
		/// Query namespace
		/// \remarks The functions in this namespace are thread-safe, unless stated otherwise. We recommend that you use these functions in development builds only, because they can cause CPU spikes.
		///
		/// \akwarning
		/// The functions in this namespace might stall for several milliseconds before returning
		/// because they cannot execute while the main sound engine tick is running. 
		/// They should therefore not be called from any game-critical thread, such as the main game loop. 
		/// However, if the function definition states that it does not require the main audio lock, no delay should occur.
		///
		/// There might be a significant delay between a Sound Engine call, such as PostEvent, and
		/// the information being returned in a Query, such as GetIsGameObjectActive. 
		/// \endakwarning

		namespace Query
		{
			////////////////////////////////////////////////////////////////////////
			/// @name Game Objects
			//@{

			/// Get the position of a game object.
			/// \return AK_Success if succeeded, or AK_IDNotFound if the game object was not registered
			/// \sa 
			/// - \ref soundengine_3dpositions
			AK_EXTERNAPIFUNC( AKRESULT, GetPosition )( 
				AkGameObjectID in_GameObjectID,				///< Game object identifier
				AkSoundPosition& out_rPosition				///< Position to get
				);

			//@}

			////////////////////////////////////////////////////////////////////////
			/// @name Listeners
			//@{

			/// Get a game object's listeners.  
			/// \return AK_Success if succeeded, or AK_IDNotFound if the game object was not registered
			/// \sa 
			/// - \ref soundengine_listeners
			AK_EXTERNAPIFUNC( AKRESULT, GetListeners )(
				AkGameObjectID in_GameObjectID,				///< Source game object identifier
				AkGameObjectID* out_ListenerObjectIDs,		///< Pointer to an array of AkGameObjectID's.  Will be populated with the IDs of the listeners of in_GameObjectID. Pass NULL to querry the size required.
				AkUInt32& oi_uNumListeners					///< Pass in the the available number of elements in the array 'out_ListenerObjectIDs'. After return, the number of valid elements filled in the array.
				);

			/// Get a listener's position.
			/// \return AK_Success if succeeded, or AK_InvalidParameter if the index is out of range
			/// \sa 
			/// - \ref soundengine_listeners_settingpos
			AK_EXTERNAPIFUNC( AKRESULT, GetListenerPosition )( 
				AkGameObjectID in_uListenerID, 					///< Listener game object ID. 
				AkListenerPosition& out_rPosition			///< Position set
				);

			/// Get a listener's spatialization parameters. 
			/// \return AK_Success if succeeded, or AK_InvalidParameter if the index is out of range
			/// \sa 
			/// - AK::SoundEngine::SetListenerSpatialization().
			/// - \ref soundengine_listeners_spatial
			AK_EXTERNAPIFUNC( AKRESULT, GetListenerSpatialization )(
				AkGameObjectID in_uListenerID,				///< Listener game object ID. 
				bool& out_rbSpatialized,					///< Spatialization enabled
				AK::SpeakerVolumes::VectorPtr & out_pVolumeOffsets,	///< Per-speaker vector of volume offsets, in decibels. Use the functions of AK::SpeakerVolumes::Vector to interpret it.
				AkChannelConfig &out_channelConfig			///< Channel configuration associated with out_rpVolumeOffsets. 
				);
			
			//@}


			////////////////////////////////////////////////////////////////////////
			/// @name Game Syncs
			//@{

			/// Enum used to request a specific RTPC Value.
			/// Also used to inform the user of where the RTPC Value comes from.
			///
			/// For example, the user may request the GameObject specific value by specifying RTPCValue_GameObject
			/// and can receive the Global Value if there was no GameObject specific value, and even the 
			/// default value is there was no Global value either.
			/// \sa 
			/// - GetRTPCValue
			enum RTPCValue_type
			{
				RTPCValue_Default,		///< The value is the Default RTPC.
				RTPCValue_Global,		///< The value is the Global RTPC.
				RTPCValue_GameObject,	///< The value is the game object specific RTPC.
				RTPCValue_PlayingID,	///< The value is the playing ID specific RTPC.
				RTPCValue_Unavailable	///< The value is not available for the RTPC specified.
			};

			/// Get the value of a real-time parameter control (by ID)
			/// An RTPC can have a any combination of a global value, a unique value for each game object, or a unique value for each playing ID.  
			/// The value requested is determined by RTPCValue_type, in_gameObjectID and in_playingID.  
			/// If a value at the requested scope (determined by RTPCValue_type) is not found, the value that is available at the the next broadest scope will be returned, and io_rValueType will be changed to indicate this.
			/// \note
			///		When looking up RTPC values via playing ID (ie. io_rValueType is RTPC_PlayingID), in_gameObjectID can be set to a specific game object (if it is available to the caller) to use as a fall back value.
			///		If the game object is unknown or unavailable, AK_INVALID_GAME_OBJECT can be passed in in_gameObjectID, and the game object will be looked up via in_playingID.  
			///		However in this case, it is not possible to retrieve a game object value as a fall back value if the playing id does not exist.  It is best to pass in the game object if possible.
			///		
			/// \return AK_Success if succeeded, AK_IDNotFound if the RTPC does not exist
			/// \sa 
			/// - \ref soundengine_rtpc
			/// - RTPCValue_type
			AK_EXTERNAPIFUNC(AKRESULT, GetRTPCValue)(
				AkRtpcID in_rtpcID, 				///< ID of the RTPC
				AkGameObjectID in_gameObjectID,		///< Associated game object ID, ignored if io_rValueType is RTPCValue_Global.
				AkPlayingID	in_playingID,			///< Associated playing ID, ignored if io_rValueType is not RTPC_PlayingID.
				AkRtpcValue& out_rValue, 			///< Value returned
				RTPCValue_type&	io_rValueType		///< In/Out value, the user must specify the requested type. The function will return in this variable the type of the returned value.
				);

#ifdef AK_SUPPORT_WCHAR

			/// Get the value of a real-time parameter control (by ID)
			/// An RTPC can have a any combination of a global value, a unique value for each game object, or a unique value for each playing ID.  
			/// The value requested is determined by RTPCValue_type, in_gameObjectID and in_playingID.  
			/// If a value at the requested scope (determined by RTPCValue_type) is not found, the value that is available at the the next broadest scope will be returned, and io_rValueType will be changed to indicate this.
			/// \note
			///		When looking up RTPC values via playing ID (ie. io_rValueType is RTPC_PlayingID), in_gameObjectID can be set to a specific game object (if it is available to the caller) to use as a fall back value.
			///		If the game object is unknown or unavailable, AK_INVALID_GAME_OBJECT can be passed in in_gameObjectID, and the game object will be looked up via in_playingID.  
			///		However in this case, it is not possible to retrieve a game object value as a fall back value if the playing id does not exist.  It is best to pass in the game object if possible.
			///		
			/// \return AK_Success if succeeded, AK_IDNotFound if the RTPC does not exist
			/// \sa 
			/// - \ref soundengine_rtpc
			/// - RTPCValue_type
			AK_EXTERNAPIFUNC(AKRESULT, GetRTPCValue)(
				const wchar_t* in_pszRtpcName,		///< String name of the RTPC
				AkGameObjectID in_gameObjectID,		///< Associated game object ID, ignored if io_rValueType is RTPCValue_Global.
				AkPlayingID	in_playingID,			///< Associated playing ID, ignored if io_rValueType is not RTPC_PlayingID.
				AkRtpcValue& out_rValue, 			///< Value returned
				RTPCValue_type&	io_rValueType		///< In/Out value, the user must specify the requested type. The function will return in this variable the type of the returned value.				);
				);

#endif //AK_SUPPORT_WCHAR

			/// Get the value of a real-time parameter control (by ID)
			/// An RTPC can have a any combination of a global value, a unique value for each game object, or a unique value for each playing ID.  
			/// The value requested is determined by RTPCValue_type, in_gameObjectID and in_playingID.  
			/// If a value at the requested scope (determined by RTPCValue_type) is not found, the value that is available at the the next broadest scope will be returned, and io_rValueType will be changed to indicate this.
			/// \note
			///		When looking up RTPC values via playing ID (ie. io_rValueType is RTPC_PlayingID), in_gameObjectID can be set to a specific game object (if it is available to the caller) to use as a fall back value.
			///		If the game object is unknown or unavailable, AK_INVALID_GAME_OBJECT can be passed in in_gameObjectID, and the game object will be looked up via in_playingID.  
			///		However in this case, it is not possible to retrieve a game object value as a fall back value if the playing id does not exist.  It is best to pass in the game object if possible.
			///		
			/// \return AK_Success if succeeded, AK_IDNotFound if the RTPC does not exist
			/// \sa 
			/// - \ref soundengine_rtpc
			/// - RTPCValue_type
			AK_EXTERNAPIFUNC(AKRESULT, GetRTPCValue)(
				const char* in_pszRtpcName,			///< String name of the RTPC
				AkGameObjectID in_gameObjectID,		///< Associated game object ID, ignored if io_rValueType is RTPCValue_Global.
				AkPlayingID	in_playingID,			///< Associated playing ID, ignored if io_rValueType is not RTPC_PlayingID.
				AkRtpcValue& out_rValue, 			///< Value returned
				RTPCValue_type&	io_rValueType		///< In/Out value, the user must specify the requested type. The function will return in this variable the type of the returned value.				);
				);

			/// Get the state of a switch group (by IDs).
			/// \return AK_Success if succeeded, or AK_IDNotFound if the game object was not registered
			/// \sa 
			/// - \ref soundengine_switch
			AK_EXTERNAPIFUNC( AKRESULT, GetSwitch )( 
				AkSwitchGroupID in_switchGroup, 			///< ID of the switch group
				AkGameObjectID  in_gameObjectID,			///< Associated game object ID
				AkSwitchStateID& out_rSwitchState 			///< ID of the switch
				);

#ifdef AK_SUPPORT_WCHAR
			/// Get the state of a switch group.
			/// \return AK_Success if succeeded, or AK_IDNotFound if the game object was not registered or the switch group name can not be found
			/// \sa 
			/// - \ref soundengine_switch
			AK_EXTERNAPIFUNC( AKRESULT, GetSwitch )( 
				const wchar_t* in_pstrSwitchGroupName,			///< String name of the switch group
				AkGameObjectID in_GameObj,					///< Associated game object ID
				AkSwitchStateID& out_rSwitchState			///< ID of the switch
				);
#endif //AK_SUPPORT_WCHAR

			/// Get the state of a switch group.
			/// \return AK_Success if succeeded, or AK_IDNotFound if the game object was not registered or the switch group name can not be found
			/// \sa 
			/// - \ref soundengine_switch
			AK_EXTERNAPIFUNC( AKRESULT, GetSwitch )( 
				const char* in_pstrSwitchGroupName,			///< String name of the switch group
				AkGameObjectID in_GameObj,					///< Associated game object ID
				AkSwitchStateID& out_rSwitchState			///< ID of the switch
				);

			/// Get the state of a state group (by IDs).
			/// \return AK_Success if succeeded
			/// \sa 
			/// - \ref soundengine_states
			AK_EXTERNAPIFUNC( AKRESULT, GetState )( 
				AkStateGroupID in_stateGroup, 				///< ID of the state group
				AkStateID& out_rState 						///< ID of the state
				);

#ifdef AK_SUPPORT_WCHAR
			/// Get the state of a state group.
			/// \return AK_Success if succeeded, or AK_IDNotFound if the state group name can not be found
			/// \sa 
			/// - \ref soundengine_states
			AK_EXTERNAPIFUNC( AKRESULT, GetState )( 
				const wchar_t* in_pstrStateGroupName,			///< String name of the state group
				AkStateID& out_rState						///< ID of the state
				);
#endif //AK_SUPPORT_WCHAR

			/// Get the state of a state group.
			/// \return AK_Success if succeeded, or AK_IDNotFound if the state group name can not be found
			/// \sa 
			/// - \ref soundengine_states
			AK_EXTERNAPIFUNC( AKRESULT, GetState )( 
				const char* in_pstrStateGroupName,			    ///< String name of the state group
				AkStateID& out_rState						///< ID of the state
				);

			//@}

			////////////////////////////////////////////////////////////////////////
			/// @name Environments
			//@{

			/// Get the environmental ratios used by the specified game object.
			/// \sa 
			/// - \ref soundengine_environments
			/// - \ref soundengine_environments_dynamic_aux_bus_routing
			/// - \ref soundengine_environments_id_vs_string
			/// \return AK_Success if succeeded, or AK_InvalidParameter if io_ruNumSendValues is 0 or out_paEnvironmentValues is NULL, or AK_PartialSuccess if more environments exist than io_ruNumSendValues
			AK_EXTERNAPIFUNC( AKRESULT, GetGameObjectAuxSendValues )( 
				AkGameObjectID		in_gameObjectID,		///< Associated game object ID
				AkAuxSendValue*		out_paAuxSendValues,	///< Variable-size array of AkAuxSendValue structures
																///< (it may be NULL if no aux send must be set)
				AkUInt32&			io_ruNumSendValues		///< The number of Auxilliary busses at the pointer's address
															///< (it must be 0 if no aux bus is set)
				);

			/// Get the environmental dry level to be used for the specified game object
			/// The control value is a number ranging from 0.0f to 1.0f.
			/// 0.0f stands for 0% dry, while 1.0f stands for 100% dry.
			/// \aknote Reducing the dry level does not mean increasing the wet level. \endaknote
			/// \sa 
			/// - \ref soundengine_environments
			/// - \ref soundengine_environments_setting_dry_environment
			/// - \ref soundengine_environments_id_vs_string
			/// \return AK_Success if succeeded, or AK_IDNotFound if the game object was not registered
			AK_EXTERNAPIFUNC( AKRESULT, GetGameObjectDryLevelValue )( 
				AkGameObjectID		in_EmitterID,			///< Associated emitter game object ID
				AkGameObjectID		in_ListenerID,			///< Associated listener game object ID
				AkReal32&			out_rfControlValue		///< Dry level control value, ranging from 0.0f to 1.0f
															///< (0.0f stands for 0% dry, while 1.0f stands for 100% dry)
				);

			/// Get a game object's obstruction and occlusion levels.
			/// \sa 
			/// - \ref soundengine_obsocc
			/// - \ref soundengine_environments
			/// \return AK_Success if succeeded, AK_IDNotFound if the game object was not registered
			AK_EXTERNAPIFUNC( AKRESULT, GetObjectObstructionAndOcclusion )(  
				AkGameObjectID in_EmitterID,			///< Associated game object ID
				AkGameObjectID in_ListenerID,			///< Listener object ID
				AkReal32& out_rfObstructionLevel,		///< ObstructionLevel: [0.0f..1.0f]
				AkReal32& out_rfOcclusionLevel			///< OcclusionLevel: [0.0f..1.0f]
				);

			//@}

			/// Get the list of audio object IDs associated to an event.
			/// \aknote It is possible to call QueryAudioObjectIDs with io_ruNumItems = 0 to get the total size of the
			/// structure that should be allocated for out_aObjectInfos. \endaknote
			/// \return AK_Success if succeeded, AK_IDNotFound if the eventID cannot be found, AK_InvalidParameter if out_aObjectInfos is NULL while io_ruNumItems > 0
			/// or AK_PartialSuccess if io_ruNumItems was set to 0 to query the number of available items.
			AK_EXTERNAPIFUNC( AKRESULT, QueryAudioObjectIDs )(
				AkUniqueID in_eventID,				///< Event ID
				AkUInt32& io_ruNumItems,			///< Number of items in array provided / Number of items filled in array
				AkObjectInfo* out_aObjectInfos		///< Array of AkObjectInfo items to fill
				);

#ifdef AK_SUPPORT_WCHAR
			/// Get the list of audio object IDs associated to a event name.
			/// \aknote It is possible to call QueryAudioObjectIDs with io_ruNumItems = 0 to get the total size of the
			/// structure that should be allocated for out_aObjectInfos. \endaknote
			/// \return AK_Success if succeeded, AK_IDNotFound if the event name cannot be found, AK_InvalidParameter if out_aObjectInfos is NULL while io_ruNumItems > 0
			/// or AK_PartialSuccess if io_ruNumItems was set to 0 to query the number of available items.
			AK_EXTERNAPIFUNC( AKRESULT, QueryAudioObjectIDs )(
				const wchar_t* in_pszEventName,		///< Event name
				AkUInt32& io_ruNumItems,			///< Number of items in array provided / Number of items filled in array
				AkObjectInfo* out_aObjectInfos		///< Array of AkObjectInfo items to fill
				);
#endif //AK_SUPPORT_WCHAR

			/// Get the list of audio object IDs associated to an event name.
			/// \aknote It is possible to call QueryAudioObjectIDs with io_ruNumItems = 0 to get the total size of the
			/// structure that should be allocated for out_aObjectInfos. \endaknote
			/// \return AK_Success if succeeded, AK_IDNotFound if the event name cannot be found, AK_InvalidParameter if out_aObjectInfos is NULL while io_ruNumItems > 0
			/// or AK_PartialSuccess if io_ruNumItems was set to 0 to query the number of available items.
			AK_EXTERNAPIFUNC( AKRESULT, QueryAudioObjectIDs )(
				const char* in_pszEventName,		///< Event name
				AkUInt32& io_ruNumItems,			///< Number of items in array provided / Number of items filled in array
				AkObjectInfo* out_aObjectInfos		///< Array of AkObjectInfo items to fill
				);

			/// Get positioning information associated to an audio object.
			/// \return AK_Success if succeeded, AK_IDNotFound if the object ID cannot be found, AK_NotCompatible if the audio object cannot expose positioning
			AK_EXTERNAPIFUNC( AKRESULT, GetPositioningInfo )( 
				AkUniqueID in_ObjectID,						///< Audio object ID
				AkPositioningInfo& out_rPositioningInfo		///< Positioning information structure to be filled
				);

			/// List passed to GetActiveGameObjects.
			/// After calling this function, the list will contain the list of all game objects that are currently active in the sound engine.
			/// Being active means that either a sound is playing or pending to be played using this game object.
			/// The caller is responsible for calling Term() on the list when the list is not required anymore
			/// \sa 
			/// - GetActiveGameObjects
			typedef AkArray<AkGameObjectID, AkGameObjectID> AkGameObjectsList;

			/// Fill the provided list with all the game object IDs that are currently active in the sound engine.
			/// The function may be used to avoid updating game objects positions that are not required at the moment.
			/// After calling this function, the list will contain the list of all game objects that are currently active in the sound engine.
			/// Being active means that either a sound is playing or pending to be played using this game object.
			/// \sa 
			/// - AkGameObjectsList
			AK_EXTERNAPIFUNC( AKRESULT, GetActiveGameObjects )( 
				AkGameObjectsList& io_GameObjectList	///< returned list of active game objects.
				);

			/// Query if the specified game object is currently active.
			/// Being active means that either a sound is playing or pending to be played using this game object.
			AK_EXTERNAPIFUNC( bool, GetIsGameObjectActive )( 
				AkGameObjectID in_GameObjId ///< Game object ID
				);

			/// Game object and max distance association.
			/// \sa 
			/// - \ref AkRadiusList
			struct GameObjDst
			{
				/// Default constructor
				GameObjDst()
					: m_gameObjID( AK_INVALID_GAME_OBJECT )
					, m_dst( -1.0f )
				{}

				/// Easy constructor
				GameObjDst( AkGameObjectID in_gameObjID, AkReal32 in_dst )
					: m_gameObjID( in_gameObjID )
					, m_dst( in_dst )
				{}

				AkGameObjectID	m_gameObjID;	///< Game object ID
				AkReal32		m_dst;			///< MaxDistance
			};

			/// List passed to GetMaxRadius.
			/// \sa 
			/// - \ref AK::SoundEngine::Query::GetMaxRadius
			typedef AkArray<GameObjDst, const GameObjDst&> AkRadiusList;

			/// Returns the maximum distance used in attenuations associated to all sounds currently playing.
			/// This may be used for example by the game to know if some processing need to be performed on the game side, that would not be required
			/// if the object is out of reach anyway.
			///
			/// Example usage:
			/// \code
			/// /*******************************************************/
			/// AkRadiusList RadLst; //creating the list( array ).
			/// // Do not reserve any size for the array, 
			/// // the system will reserve the correct size.
			///
			/// GetMaxRadius( RadLst );
			/// // Use the content of the list
			/// (...)
			///
			/// RadLst.Term();// the user is responsible to free the memory allocated
			/// /*******************************************************/
			/// \endcode
			///
			/// \aknote The returned value is NOT the distance from a listener to an object but
			/// the maximum attenuation distance of all sounds playing on this object. This is
			/// not related in any way to the curent 3D position of the object. \endaknote
			///
			/// \return 
			/// - AK_Success if succeeded
			/// - AK_InsuficientMemory if there was not enough memory
			///
			/// \aknote 
			/// The Scaling factor (if one was specified on the game object) is included in the return value.
			/// The Scaling factor is not updated once a sound starts playing since it 
			/// is computed only when the playback starts with the initial scaling factor of this game object. Scaling factor will 
			/// be re-computed for every playback instance, always using the scaling factor available at this time.
			/// \endaknote
			///
			/// \sa 
			/// - AkRadiusList
			AK_EXTERNAPIFUNC( AKRESULT, GetMaxRadius )(
				AkRadiusList & io_RadiusList	///< List that will be filled with AK::SoundEngine::Query::GameObjDst objects.
				);

			/// Returns the maximum distance used in attenuations associated to sounds playing using the specified game object.
			/// This may be used for example by the game to know if some processing need to be performed on the game side, that would not be required
			/// if the object is out of reach anyway.
			/// 
			/// \aknote The returned value is NOT the distance from a listener to an object but the maximum attenuation distance of all sounds playing on this object. \endaknote
			///
			/// \return
			/// - A negative number if the game object specified is not playing.
			/// - 0, if the game object was only associated to sounds playing using no distance attenuation.
			/// - A positive number represents the maximum of all the distance attenuations playing on this game object.
			///
			/// \aknote 
			/// The Scaling factor (if one was specified on the game object) is included in the return value.
			/// The Scaling factor is not updated once a sound starts playing since it 
			/// is computed only when the playback starts with the initial scaling factor of this game object. Scaling factor will 
			/// be re-computed for every playback instance, always using the scaling factor available at this time.
			/// \endaknote
			///
			/// \sa 
			/// - \ref AK::SoundEngine::SetScalingFactor
			AK_EXTERNAPIFUNC( AkReal32, GetMaxRadius )(
				AkGameObjectID in_GameObjId ///< Game object ID
				);

			/// Get the Event ID associated to the specified PlayingID.
			/// This function does not acquire the main audio lock.
			///
			/// \return AK_INVALID_UNIQUE_ID on failure.
			AK_EXTERNAPIFUNC( AkUniqueID, GetEventIDFromPlayingID )(
				AkPlayingID in_playingID ///< Associated PlayingID
				);

			/// Get the ObjectID associated to the specified PlayingID.
			/// This function does not acquire the main audio lock.
			///
			/// \return AK_INVALID_GAME_OBJECT on failure.
			AK_EXTERNAPIFUNC( AkGameObjectID, GetGameObjectFromPlayingID )(
				AkPlayingID in_playingID ///< Associated PlayingID
				);

			/// Get the list PlayingIDs associated with the given game object.
			/// This function does not acquire the main audio lock.
			///
			/// \aknote It is possible to call GetPlayingIDsFromGameObject with io_ruNumItems = 0 to get the total size of the
			/// structure that should be allocated for out_aPlayingIDs. \endaknote
			/// \return AK_Success if succeeded, AK_InvalidParameter if out_aPlayingIDs is NULL while io_ruNumItems > 0
			AK_EXTERNAPIFUNC( AKRESULT, GetPlayingIDsFromGameObject )(
				AkGameObjectID in_GameObjId,		///< Game object ID
				AkUInt32& io_ruNumIDs,				///< Number of items in array provided / Number of items filled in array
				AkPlayingID* out_aPlayingIDs		///< Array of AkPlayingID items to fill
				);

			/// Get the value of a custom property of integer or boolean type.
			/// \return AK_PartialSuccess if the object was found but no matching custom property was found on this object. Note that it could mean this value is the default value. 
			AK_EXTERNAPIFUNC( AKRESULT, GetCustomPropertyValue )(
				AkUniqueID in_ObjectID,			///< Object ID, this is the 32bit ShortID of the AudioFileSource or Sound object found in the .wwu XML file. At runtime it can only be retrieved by the AK_Duration callback when registered with PostEvent(), or by calling Query::QueryAudioObjectIDs() to get all the shortIDs associated with an event.
				AkUInt32 in_uPropID,			///< Property ID of your custom property found under the Custom Properties tab of the Wwise project settings.
				AkInt32& out_iValue				///< Property Value
				);

			/// Get the value of a custom property of real type.
			/// \return AK_PartialSuccess if the object was found but no matching custom property was found on this object. Note that it could mean this value is the default value.
			AK_EXTERNAPIFUNC( AKRESULT, GetCustomPropertyValue )(
				AkUniqueID in_ObjectID,			///< Object ID, this is the 32bit ShortID of the AudioFileSource or Sound object found in the .wwu XML file. At runtime it can only be retrieved by the AK_Duration callback when registered with PostEvent(), or by calling Query::QueryAudioObjectIDs() to get all the shortIDs associated with an event.
				AkUInt32 in_uPropID,			///< Property ID of your custom property found under the Custom Properties tab of the Wwise project settings.
				AkReal32& out_fValue			///< Property Value
				);

		} //namespace Query
	} //namespace SoundEngine
} //namespace AK

#endif // _AK_QUERYPARAMS_H_