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Contents
# -*- coding: utf-8 -*-
require 'forwardable'
module DXRubySDL
class Sound
extend Forwardable
@sdl_mixer_openend = false
def initialize(filename)
if !self.class.instance_variable_get('@sdl_mixer_openend')
SDL::Mixer.open
SDL::Mixer.allocate_channels(2)
self.class.instance_variable_set('@sdl_mixer_openend', true)
end
if /\.mid$/ =~ filename
@sound = Music.new(filename)
else
@sound = Wave.new(filename)
end
end
def_delegators :@sound, :play, :set_volume
alias_method :setVolume, :set_volume
private
class Music
def initialize(filename)
@music = SDL::Mixer::Music.load(filename)
end
def play
SDL::Mixer.play_music(@music, -1)
end
def set_volume(volume, time = 0)
raise NotImplementedError, 'Sound#set_volume(volume, time) with MIDI'
end
end
private_constant :Music
class Wave
extend Forwardable
def initialize(filename)
@wave = SDL::Mixer::Wave.load(filename)
@last_played_channel = nil
end
def play
@last_played_channel = SDL::Mixer.play_channel(-1, @wave, 0)
rescue SDL::Error => e
if /No free channels available/ =~ e.message
SDL::Mixer.halt(@last_played_channel == 0 ? 1 : 0)
retry
end
end
def set_volume(volume, time = 0)
if time > 0
raise NotImplementedError, 'Sound#set_volume(volume, time != 0)'
end
@wave.set_volume(volume)
end
end
private_constant :Wave
end
end
Version data entries
9 entries across 9 versions & 1 rubygems