73 lines
4.2 KiB
C
73 lines
4.2 KiB
C
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#ifndef HGL_AUDIO_SOURCE_INCLUDE
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#define HGL_AUDIO_SOURCE_INCLUDE
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#include<hgl/audio/ConeAngle.h>
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#include<hgl/audio/AudioBuffer.h>
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namespace hgl
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{
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class AudioListener;
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/**
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* 音频源，指的是一个发声源，要发声必须创建至少一个发声源。而这个类就是管理发声源所用的。
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*/
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class AudioSource ///音频源类
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{
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#include<hgl/audio/AudioSource.Attrib.h>
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public: //属性
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Property<uint> Index;
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Property<double> CurTime; ///<当前播放到的时间
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Property<int> State; ///<音源状态
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Property<float> MinGain; ///<最小增益
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Property<float> MaxGain; ///<最大增益
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Property<bool> Loop; ///<是否循环播放虚拟变量
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Property<float> Pitch; ///<播放频率
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Property<float> Gain; ///<音量增益幅度
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Property<float> ConeGain; ///<音源锥增益
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Property<uint> DistanceModel; ///<距离衰减模型(默认钳位倒数距离模型)
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Property<float> RolloffFactor; ///<音源衰减因(>=0,默认1.0)
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public: //属性方法
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const Vector3f &GetPosition(){return position;}
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const Vector3f &GetVelocity(){return velocity;}
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const Vector3f &GetDirection(){return direction;}
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const ConeAngle &GetAngle(){return angle;}
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void SetPosition(const Vector3f &);
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void SetVelocity(const Vector3f &);
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void SetDirection(const Vector3f &);
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void SetDistance(const float &ref_distance,const float &max_distance);
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void SetConeAngle(const ConeAngle &);
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void SetDopplerFactor(const float &); ///<设置多普勒效果强度
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void SetDopplerVelocity(const float &); ///<设置多普勒速度
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public: //方法
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AudioSource(bool=false); ///<本类构造函数
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AudioSource(AudioBuffer *); ///<本类构造函数
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virtual ~AudioSource(); ///<本类析构函数
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virtual bool Play(); ///<播放当前音源
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virtual bool Play(bool); ///<播放当前音源，并指定是否循环播放
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virtual void Pause(); ///<暂停播放
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virtual void Resume(); ///<继续播放
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virtual void Stop(); ///<停止播放
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virtual void Rewind(); ///<重绕播放
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virtual bool Create(); ///<创建音源
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virtual void Close(); ///<关闭音源
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bool Link(AudioBuffer *); ///<绑定一个音频缓冲区
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void Unlink(); ///<解除绑定
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};//class AudioSource
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}//namespace hgl
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#endif//HGL_AUDIO_SOURCE_INCLUDE
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