Sha256: 36ea26ade2232a218ef173518ec388e377a12bb6daa2e1f83c88e6ed3fd3489e
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Size: 755 Bytes
Versions: 18
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Stored size: 755 Bytes
Contents
# frozen_string_literal: true
# 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..-1], 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
18 entries across 18 versions & 1 rubygems