Contents

# frozen_string_literal: true

# A mark is a fragment of music with an optional fitness score assigned.
# Marks are collected into annotations which comment on the fragments.
class HeadMusic::Style::Mark
  attr_reader :start_position, :end_position, :placements, :fitness

  def self.for(placement, fitness: nil)
    new(placement.position, placement.next_position, placements: [placement], fitness: fitness)
  end

  def self.for_all(placements, fitness: nil)
    placements = [placements].flatten.compact
    return [] if placements.empty?
    start_position = placements.map(&:position).sort.first
    end_position = placements.map(&:next_position).sort.last
    new(start_position, end_position, placements: placements, fitness: fitness)
  end

  def self.for_each(placements, fitness: nil)
    placements = [placements].flatten
    placements.map do |placement|
      new(placement.position, placement.next_position, placements: placement, fitness: fitness)
    end
  end

  def initialize(start_position, end_position, placements: [], fitness: nil)
    @start_position = start_position
    @end_position = end_position
    @placements = [placements].flatten.compact
    @fitness = fitness || HeadMusic::PENALTY_FACTOR
  end

  def code
    [start_position, end_position].join(' to ')
  end

  def to_s
    code
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
head_music-0.19.0	lib/head_music/style/mark.rb
head_music-0.18.0	lib/head_music/style/mark.rb