robert@464: /*
robert@464:  *
robert@464:  * Excitation Junction for two waveguides
robert@464:  *
robert@464:  * Christian Heinrichs 04/2015
robert@464:  *
robert@464:  */
robert@464: 
robert@464: #ifndef JUNCTION_H_
robert@464: #define JUNCTION_H_
robert@464: 
robert@464: #include <cmath>
robert@464: 
robert@464: #ifndef WG_BUFFER_SIZE
robert@464: #define WG_BUFFER_SIZE 4096
robert@464: #endif
robert@464: 
robert@464: #ifndef		M_PI
robert@464: #define		M_PI		3.14159265358979323846264338
robert@464: #endif
robert@464: 
robert@464: class Junction
robert@464: {
robert@464: 
robert@464: public:
robert@464: 
robert@464: 	Junction();
robert@464: 	void setup();
robert@464: 	void update(float excitation, float left, float right);
robert@464: 	float getOutput(int direction);
robert@464: 	float getExcitationDisplacement();
robert@464: 	void setFrequency(float frequency);
robert@464: 	void setPeriod(float periodInMs);
robert@464: 	void setPluckPosition(float pluckPos);
robert@464: 
robert@464: private:
robert@464: 
robert@464: 	double _dt;
robert@464: 	float _periodInMilliseconds;
robert@464: 	int _periodInSamples;
robert@464: 
robert@464: 	int _delay_l;
robert@464: 	int _delay_r;
robert@464: 
robert@464: 	float _buffer_l[WG_BUFFER_SIZE];
robert@464: 	float _buffer_r[WG_BUFFER_SIZE];
robert@464: 	int _readPtr;
robert@464: 
robert@464: 	float _excitation;
robert@464: 	float _lastPlectrumDisplacement;
robert@464: 
robert@464: };
robert@464: 
robert@464: #endif