Contents

# Module for style guidelines.
module HeadMusic::Style::Guidelines; end

# A counterpoint guideline
class HeadMusic::Style::Guidelines::StepDownToFinalNote < HeadMusic::Style::Annotation
  MESSAGE = "Step down to the final note."

  def marks
    return if last_melodic_interval.nil?

    fitness = 1
    fitness *= HeadMusic::PENALTY_FACTOR unless step?
    fitness *= HeadMusic::PENALTY_FACTOR unless descending?
    HeadMusic::Style::Mark.for_all(notes[-2..], fitness: fitness) if fitness < 1
  end

  private

  def descending?
    last_melodic_interval&.descending?
  end

  def step?
    last_melodic_interval&.step?
  end

  def last_melodic_interval
    @last_melodic_interval ||= melodic_intervals.last
  end
end

Version data entries

9 entries across 9 versions & 1 rubygems

Version	Path
head_music-7.0.5	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-7.0.4	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-7.0.3	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-7.0.2	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-7.0.1	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-7.0.0	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-6.0.1	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-6.0.0	lib/head_music/style/guidelines/step_down_to_final_note.rb
head_music-5.0.0	lib/head_music/style/guidelines/step_down_to_final_note.rb