
sge.snd
*******


Contents
^^^^^^^^

* sge.snd

  * sge.snd Classes

    * sge.snd.Sound

      * sge.snd.Sound Methods

    * sge.snd.Music

      * sge.snd.Music Methods

  * sge.snd Functions

    * sge.snd.stop_all

This module provides classes related to the sound system.


sge.snd Classes
===============


sge.snd.Sound
-------------

class sge.snd.Sound(fname, volume=1, max_play=1, parent=None)

   This class stores and plays sound effects.  Note that this is
   inefficient for large music files; for those, use "sge.snd.Music"
   instead.

   What sound formats are supported depends on the implementation of
   the SGE, but sound formats that are generally a good choice are Ogg
   Vorbis and uncompressed WAV.  See the implementation-specific
   information for a full list of supported formats.

   volume

      The volume of the sound as a value from "0" to "1" ("0" for no
      sound, "1" for maximum volume).

   max_play

      The maximum number of instances of this sound playing permitted.
      If a sound is played while this number of the instances of the
      same sound are already playing, one of the already playing
      sounds will be stopped before playing the new instance.  Set to
      "None" for no limit.

   parent

      Indicates another sound which is treated as being the same sound
      as this one for the purpose of determining whether or not, and
      how many times, the sound is playing.  Set to "None" for no
      parent.

      If the sound has a parent, "max_play" will have no effect and
      instead the parent sound's "max_play" will apply to both the
      parent sound and this sound.

      Warning: It is acceptable for a sound to both be a parent and
        have a parent.  However, there MUST be a parent at the top
        which has no parent.  The behavior of circular parenting, such
        as making two sounds parents of each other, is undefined.

   fname

      The file name of the sound given when it was created. (Read-
      only)

   length

      The length of the sound in milliseconds.  (Read-only)

   playing

      The number of instances of this sound playing.  (Read-only)

   rd

      Reserved dictionary for internal use by the SGE.  (Read-only)


sge.snd.Sound Methods
~~~~~~~~~~~~~~~~~~~~~

Sound.__init__(fname, volume=1, max_play=1, parent=None)

   Arguments:

   * "fname" -- The path to the sound file.  If set to "None", this
     object will not actually play any sound. If this is neither a
     valid sound file nor "None", "OSError" is raised.

   All other arguments set the respective initial attributes of the
   sound.  See the documentation for "sge.snd.Sound" for more
   information.

Sound.play(loops=1, volume=1, balance=0, maxtime=None, fade_time=None, force=True)

   Play the sound.

   Arguments:

   * "loops" -- The number of times to play the sound; set to "None"
     or "0" to loop indefinitely.

   * "volume" -- The volume to play the sound at as a factor of
     "self.volume" ("0" for no sound, "1" for "self.volume").

   * "balance" -- The balance of the sound effect on stereo speakers
     as a float from "-1" to "1", where "0" is centered (full volume
     in both speakers), "1" is entirely in the right speaker, and "-1"
     is entirely in the left speaker.

   * "maxtime" -- The maximum amount of time to play the sound in
     milliseconds; set to "None" for no limit.

   * "fade_time" -- The time in milliseconds over which to fade the
     sound in; set to "None" or "0" to immediately play the sound at
     full volume.

   * "force" -- Whether or not the sound should be played even if it
     is already playing the maximum number of times.  If set to "True"
     and the sound is already playing the maximum number of times, one
     of the instances of the sound already playing will be stopped.

Sound.stop(fade_time=None)

   Stop the sound.

   Arguments:

   * "fade_time" -- The time in milliseconds over which to fade the
     sound out before stopping; set to "None" or "0" to immediately
     stop the sound.

Sound.pause()

   Pause playback of the sound.

Sound.unpause()

   Resume playback of the sound if paused.


sge.snd.Music
-------------

class sge.snd.Music(fname, volume=1)

   This class stores and plays music.  Music is very similar to sound
   effects, but only one music file can be played at a time, and it is
   more efficient for larger files than "sge.snd.Sound".

   What music formats are supported depends on the implementation of
   the SGE, but Ogg Vorbis is generally a good choice.  See the
   implementation-specific information for a full list of supported
   formats.

   Note: You should avoid the temptation to use MP3 files; MP3 is a
     patent-encumbered format, so many systems do not support it and
     royalties to the patent holders may be required for commercial
     use.  There are many programs which can convert your MP3 files to
     the free Ogg Vorbis format.

   volume

      The volume of the music as a value from "0" to "1" ("0" for no
      sound, "1" for maximum volume).

   fname

      The file name of the music given when it was created. (Read-
      only)

   length

      The length of the music in milliseconds.  (Read-only)

   playing

      Whether or not the music is playing.  (Read-only)

   position

      The current position (time) playback of the music is at in
      milliseconds.  (Read-only)

   rd

      Reserved dictionary for internal use by the SGE.  (Read-only)


sge.snd.Music Methods
~~~~~~~~~~~~~~~~~~~~~

Music.__init__(fname, volume=1)

   Arguments:

   * "fname" -- The path to the sound file.  If set to "None", this
     object will not actually play any music. If this is neither a
     valid sound file nor "None", "OSError" is raised.

   All other arguments set the respective initial attributes of the
   music.  See the documentation for "sge.snd.Music" for more
   information.

Music.play(start=0, loops=1, maxtime=None, fade_time=None)

   Play the music.

   Arguments:

   * "start" -- The number of milliseconds from the beginning to
     start playing at.

   See the documentation for "sge.snd.Sound.play()" for more
   information.

Music.queue(start=0, loops=1, maxtime=None, fade_time=None)

   Queue the music for playback.

   This will cause the music to be added to a list of music to play in
   order, after the previous music has finished playing.

   See the documentation for "sge.snd.Music.play()" for more
   information.

static Music.stop(fade_time=None)

   Stop the currently playing music.

   See the documentation for "sge.snd.Sound.stop()" for more
   information.

static Music.pause()

   Pause playback of the currently playing music.

static Music.unpause()

   Resume playback of the currently playing music if paused.

static Music.clear_queue()

   Clear the music queue.


sge.snd Functions
=================


sge.snd.stop_all
----------------

sge.snd.stop_all()

   Stop playback of all sounds.
