mirror of https://github.com/ArduPilot/ardupilot
55 lines
978 B
C++
55 lines
978 B
C++
#pragma once
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#include <stdint.h>
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#include <stdlib.h>
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class MMLPlayer {
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public:
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void update();
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void play(const char* string);
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void stop();
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private:
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// initialise ready to play string
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void prepare_to_play_string(const char* string);
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bool _playing;
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uint32_t _note_duration_us;
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uint32_t _note_start_us;
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const char* _string;
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uint8_t _tempo;
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uint8_t _default_note_length;
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uint8_t _volume;
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size_t _next;
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uint8_t _octave;
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float _silence_duration;
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bool _repeat;
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enum node_mode_t {
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MODE_NORMAL,
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MODE_LEGATO,
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MODE_STACCATO
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} _note_mode;
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void start_silence(float duration);
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void start_note(float duration, float frequency, float volume);
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char next_char();
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uint8_t next_number();
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size_t next_dots();
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float rest_duration(uint32_t rest_length, uint8_t dots) const;
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// Called when the MML player should start the next action
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void next_action();
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};
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