Sha256: a5f491f084ece0c58228a31170e5f4edc9fb2c37508d10c58dab5d0a8ac711fd
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Contents
class HeadMusic::RhythmicValue attr_reader :unit, :dots, :tied_value delegate :name, to: :unit, prefix: true delegate :to_s, to: :name def initialize(unit, dots: nil, tied_value: nil) @unit = HeadMusic::RhythmicUnit.get(unit) @dots = [0, 1, 2, 3].include?(dots) ? dots : 0 @tied_value = tied_value end def unit_value unit.relative_value end def relative_value unit_value * multiplier end def total_value relative_value + (tied_value ? tied_value.total_value : 0) end def multiplier (0..dots).reduce(0) { |sum, i| sum += (1.0/2)**i } end def ticks HeadMusic::RhythmicUnit::PPQN * 4 * total_value end def per_whole 1.0 / relative_value end def name_modifier_prefix case dots when 1 'dotted' when 2 'double-dotted' when 3 'triple-dotted' end end def single_value_name [name_modifier_prefix, unit_name].reject(&:nil?).join(' ') end def name if tied_value [single_value_name, tied_value.name].reject(&:nil?).join(' tied to ') else single_value_name end end def ==(other) to_s == other.to_s end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
---|---|
head_music-0.7.0 | lib/head_music/rhythmic_value.rb |