Class: Synthesizer::StepEditor::StGt

Inherits:
Object
  • Object
show all
Defined in:
lib/synthesizer/step_editor/st_gt.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(bpm:, ppq: 480, &block) ⇒ StGt

Returns a new instance of StGt.



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 8

def initialize(bpm:, ppq: 480, &block)
  @ppq = ppq
  @seek = 0.0
  @location = 0
  @events = []
  self.bpm = bpm

  if block_given?
    yield self
  end
end

Instance Attribute Details

#events ⇒ Object (readonly)

Returns the value of attribute events.



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 6

def events
  @events
end

#ppq ⇒ Object (readonly)

Returns the value of attribute ppq.



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 5

def ppq
  @ppq
end

Instance Method Details

#bpm=(bpm) ⇒ Object 



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 20

def bpm=(bpm)
  @ppq_rate = 60.0 / (@ppq.to_f * bpm)
end

#complete ⇒ Object 



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 50

def complete
  @events << [@seek, :complete]
end

#location(beats: 4) ⇒ Object 



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 29

def location(beats: 4)
  tick = @location % @ppq
  location = (@location - tick) / @ppq
  beat = location % beats
  location = location - beat
  measure = location / beats

  "#{measure+1}. #{beat+1}. #{tick}"
end

#note(note, st: 0, gt:, vel: 1.0, dev: 0) ⇒ Object 



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 39

def note(note, st: 0, gt:, vel: 1.0, dev: 0)
  @events << [@seek + dev * @ppq_rate, :note_on, note, vel]
  @events << [@seek + (gt + dev) * @ppq_rate, :note_off, note]
  step(st)
end

#pitch_bend(semis, st: 0, dev: 0) ⇒ Object 



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 45

def pitch_bend(semis, st: 0, dev: 0)
  @events << [@seek + dev * @ppq_rate, :pitch_bend, semis]
  step(st)
end

#step(st) ⇒ Object 



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# File 'lib/synthesizer/step_editor/st_gt.rb', line 24

def step(st)
  @location += st
  @seek += st * @ppq_rate
end