65 lines
1.7 KiB
GDScript3
65 lines
1.7 KiB
GDScript3
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extends Control
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var sample_hz = 22050.0 # Keep the number of samples to mix low, GDScript is not super fast.
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var pulse_hz = 440.0
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var phase = 0.0
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var morse_state := false
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var playback: AudioStreamPlayback = null
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var vol_on := -30
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func _process(_delta):
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fill_buffer()
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func fill_buffer():
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var increment = pulse_hz / sample_hz
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var frames_available = playback.get_frames_available()
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for i in range(frames_available):
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playback.push_frame(Vector2.ONE * sin(phase * TAU))
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phase = fmod(phase + increment, 1.0)
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func _ready():
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$Player.stream.mix_rate = sample_hz
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$Player.volume_db = -100
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$Player.play()
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playback = $Player.get_stream_playback()
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fill_buffer()
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OS.open_midi_inputs()
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print(OS.get_connected_midi_inputs())
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func set_morse_state(state: bool):
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morse_state = state
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if state:
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%ColorRect.color = Color(0, 128, 0)
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$Player.volume_db = vol_on
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else:
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%ColorRect.color = Color(0, 0, 0)
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$Player.volume_db = -100
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func _on_morse_button_down() -> void:
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set_morse_state(true)
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func _on_morse_button_up() -> void:
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set_morse_state(false)
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func _input(input_event):
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if input_event is InputEventMIDI:
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_process_midi_event(input_event)
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func _process_midi_event(midi_event):
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if midi_event.channel in [0, 9]:
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if midi_event.message == MIDI_MESSAGE_NOTE_ON:
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set_morse_state(true)
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elif midi_event.message == MIDI_MESSAGE_NOTE_OFF:
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set_morse_state(false)
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#print(midi_event)
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#print("Channel ", midi_event.channel)
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#print("Message ", midi_event.message)
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#print("Pitch ", midi_event.pitch)
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#print("Velocity ", midi_event.velocity)
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#print("Instrument ", midi_event.instrument)
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#print("Pressure ", midi_event.pressure)
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#print("Controller number: ", midi_event.controller_number)
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#print("Controller value: ", midi_event.controller_value)
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