Sha256: 04e6284804bd796b5483b4f61604437f977f82f543e688040c15b49f367c91a7
Contents?: true
Size: 1.72 KB
Versions: 7
Compression:
Stored size: 1.72 KB
Contents
module Music
module Transcription
class Score
include Validatable
attr_accessor :start_meter, :start_tempo, :parts, :program, :meter_changes, :tempo_changes
@@check_methods = [ :check_start_tempo, :check_tempo_changes, :check_meter_changes ]
def initialize start_meter, start_tempo, meter_changes: {}, tempo_changes: {}, parts: {}, program: Program.new
@start_meter = start_meter
@start_tempo = start_tempo
@meter_changes = meter_changes
@tempo_changes = tempo_changes
@parts = parts
@program = program
yield(self) if block_given?
end
def validatables
return [ @program, @start_meter ] +
@tempo_changes.values +
@meter_changes.values +
@meter_changes.values.map {|v| v.value} +
@parts.values
end
def check_start_tempo
unless @start_tempo > 0
raise NonPositiveError, "start tempo #{@start_tempo} is not positive"
end
end
def check_tempo_changes
not_positive = @tempo_changes.select {|k,v| v.value <= 0}
if not_positive.any?
raise NonPositiveError, "tempo changes #{not_positive} are not positive"
end
end
def check_meter_changes
nonzero_duration = @meter_changes.select {|k,v| v.duration != 0 }
if nonzero_duration.any?
raise NonZeroError, "meter changes #{nonzero_duration} have non-zero duration"
end
end
def clone
Marshal.load(Marshal.dump(self))
end
def ==(other)
return @start_meter == other.start_meter &&
@start_tempo == other.start_tempo &&
@meter_changes == other.meter_changes &&
@tempo_changes == other.tempo_changes &&
@parts == other.parts &&
@program == other.program
end
def duration
@parts.map {|p| p.duration }.max
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems