godot/modules/chibi/cp_instrument.h

/*************************************************************************/
/*  cp_instrument.h                                                      */
/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
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#ifndef CP_INSTRUMENT_H
#define CP_INSTRUMENT_H

#include "cp_config.h"
#include "cp_envelope.h"
#include "cp_note.h"

class CPInstrument {
public:
	enum NNA_Type {

		NNA_NOTE_CUT,
		NNA_NOTE_CONTINUE,
		NNA_NOTE_OFF,
		NNA_NOTE_FADE
	};

	enum DC_Type {

		DCT_DISABLED,
		DCT_NOTE,
		DCT_SAMPLE,
		DCT_INSTRUMENT
	};

	enum DC_Action {

		DCA_NOTE_CUT,
		DCA_NOTE_OFF,
		DCA_NOTE_FADE,
	};

	enum EnvelopeType {
		VOLUME_ENVELOPE,
		PAN_ENVELOPE,
		PITCH_ENVELOPE
	};

	enum {
		MAX_NAME_LEN = 26,
		MAX_ENVELOPE_NODES = 25,
		ENVELOPE_FRAC_BITS = 8,
		MAX_VOLUME = 128,
		MAX_FADEOUT = 256,
		MAX_PAN = 128,
		MAX_VOLUME_RANDOM = 100,
		MAX_PAN_RANDOM = 64, //what did this guy have inside his head?

		MAX_FILTER_CUTOFF = 127,
		MAX_FILTER_RESONANCE = 127

	};

	struct Data {

		uint8_t sample_number[CPNote::NOTES];
		uint8_t note_number[CPNote::NOTES];

		NNA_Type NNA_type;
		DC_Type DC_type;
		DC_Action DC_action;

		struct Volume {

			CPEnvelope envelope;
			uint8_t global_amount;
			uint16_t fadeout;
			uint8_t random_variation;

		} volume;

		struct Pan {

			CPEnvelope envelope;
			bool use_default;
			uint8_t default_amount;
			int8_t pitch_separation;
			uint8_t pitch_center;
			uint8_t random_variation;

		} pan;

		struct Pitch {

			CPEnvelope envelope;
			bool use_as_filter;
			bool use_default_cutoff;
			uint8_t default_cutoff;
			bool use_default_resonance;
			uint8_t default_resonance;
		} pitch;
	};

private:
	Data data;
	char name[MAX_NAME_LEN];

public:
	/* CPInstrument General */

	const char *get_name();
	void set_name(const char *p_name);

	void set_sample_number(uint8_t p_note, uint8_t p_sample_id);
	uint8_t get_sample_number(uint8_t p_note);

	void set_note_number(uint8_t p_note, uint8_t p_note_id);
	uint8_t get_note_number(uint8_t p_note);

	void set_NNA_type(NNA_Type p_NNA_type);
	NNA_Type get_NNA_type();

	void set_DC_type(DC_Type p_DC_type);
	DC_Type get_DC_type();

	void set_DC_action(DC_Action p_DC_action);
	DC_Action get_DC_action();

	/* Volume */

	void set_volume_global_amount(uint8_t p_amount);
	uint8_t get_volume_global_amount();

	void set_volume_fadeout(uint16_t p_amount);
	uint16_t get_volume_fadeout();

	void set_volume_random_variation(uint8_t p_amount);
	uint8_t get_volume_random_variation();

	/* Panning */

	void set_pan_default_amount(uint8_t p_amount);
	uint8_t get_pan_default_amount();

	void set_pan_default_enabled(bool p_enabled);
	bool is_pan_default_enabled();

	void set_pan_pitch_separation(int8_t p_amount);
	int8_t get_pan_pitch_separation();

	void set_pan_pitch_center(uint8_t p_amount);
	uint8_t get_pan_pitch_center();

	void set_pan_random_variation(uint8_t p_amount);
	uint8_t get_pan_random_variation();

	/* Pitch / Filter */

	void set_pitch_use_as_filter(bool p_enabled);
	bool is_pitch_use_as_filter();

	void set_filter_use_default_cutoff(bool p_enabled);
	bool filter_use_default_cutoff();

	void set_filter_default_cutoff(uint8_t p_amount);
	uint8_t get_filter_default_cutoff();

	void set_filter_use_default_resonance(bool p_enabled);
	bool filter_use_default_resonance();

	void set_filter_default_resonance(uint8_t p_amount);
	uint8_t get_filter_default_resonance();

	CPEnvelope *get_volume_envelope();
	CPEnvelope *get_pan_envelope();
	CPEnvelope *get_pitch_filter_envelope();

	bool is_empty();

	void reset();
	CPInstrument();
};

#endif