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/* Copyright (C) 2021 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_SOUNDGROUP_H
#define INCLUDED_SOUNDGROUP_H
#include "lib/config2.h"
#include "lib/file/vfs/vfs_path.h"
#include "lib/types.h"
#include "simulation2/system/Entity.h"
#include "soundmanager/data/SoundData.h"
#include <vector>
class CVector3D;
enum eSndGrpFlags
{
eRandOrder = 0x01,
eRandGain = 0x02,
eRandPitch = 0x04,
eLoop = 0x08,
eOmnipresent = 0x10,
eDistanceless = 0x20,
eOwnerOnly = 0x40
};
// Loads up a group of sound files with shared properties,
// and provides a simple interface for playing them.
class CSoundGroup
{
NONCOPYABLE(CSoundGroup);
public:
CSoundGroup(const VfsPath& pathnameXML);
CSoundGroup();
~CSoundGroup();
// Play next sound in group
// @param position world position of the entity generating the sound
// (ignored if the eOmnipresent flag is set)
void PlayNext(const CVector3D& position, entity_id_t source);
float RadiansOffCenter(const CVector3D& position, bool& onScreen, float& itemRollOff);
// Load a group
bool LoadSoundGroup(const VfsPath& pathnameXML);
void Reload();
// Release all remaining loaded handles
void ReleaseGroup();
// Update SoundGroup, remove dead sounds from intensity count
void Update(float TimeSinceLastFrame);
// Set a flag using a value from eSndGrpFlags
inline void SetFlag(int flag) { m_Flags = (unsigned char)(m_Flags | flag); }
// Test flag, returns true if flag is set.
inline bool TestFlag(int flag) { return (m_Flags & flag) != 0; }
private:
void SetGain(float gain);
void UploadPropertiesAndPlay(size_t theIndex, const CVector3D& position, entity_id_t source);
void SetDefaultValues();
#if CONFIG2_AUDIO
// We store the handles so we can load now and play later
std::vector<CSoundData*> m_SoundGroups;
#endif
u32 m_Seed;
// We need the filenames so we can reload when necessary.
std::vector<std::wstring> m_Filenames;
// The file path for the list of sound file resources
VfsPath m_Filepath;
size_t m_CurrentSoundIndex;
float m_ConeInnerAngle;
float m_ConeOuterAngle;
float m_ConeOuterGain;
// Time elapsed since soundgroup was created
float m_CurTime;
float m_Decay;
float m_Gain;
float m_GainUpper;
float m_GainLower;
// Distance attenuation settings
float m_MinDist;
float m_MaxDist;
// How much stereo separation to apply to sounds based on L-R position relative to the camera.
float m_MaxStereoAngle;
// The allowable intensity before a sound switch
float m_IntensityThreshold;
float m_Pitch;
float m_PitchLower;
float m_PitchUpper;
float m_Priority;
// Up to eight individual parameters, use with eSndGrpFlags.
u8 m_Flags;
};
#endif //#ifndef INCLUDED_SOUNDGROUP_H
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