Mercurial > pyntnclick
annotate pyntnclick/sound.py @ 800:374d96e0b55e pyntnclick
pep8/pyflakes fixes.
| author | Jeremy Thurgood <firxen@gmail.com> |
|---|---|
| date | Sun, 27 Jan 2013 13:42:58 +0200 |
| parents | 4206da1f742d |
| children |
| rev | line source |
|---|---|
|
583
66c2e084b8b3
Remove unused import and fix comment.
Simon Cross <hodgestar+bzr@gmail.com>
parents:
577
diff
changeset
|
1 # sound management for pyntnclick |
| 107 | 2 |
| 629 | 3 from random import randrange |
| 4 | |
| 5 | |
| 123 | 6 import pygame |
| 564 | 7 |
| 8 try: | |
| 9 from pygame.mixer import Sound as pygame_Sound | |
| 10 from pygame.mixer import music | |
| 11 pygame_import_error = None | |
| 12 except ImportError, e: | |
| 13 # Save error, so we don't crash and can do the right thing later | |
| 14 pygame_import_error = e | |
| 15 pygame_Sound = None | |
| 16 music = None | |
| 17 | |
| 18 from pyntnclick.resources import ResourceNotFound | |
| 629 | 19 from pyntnclick.engine import MUSIC_ENDED |
| 564 | 20 |
| 629 | 21 |
| 22 class PlayList(object): | |
| 23 """Hold a playlist of music filenames""" | |
| 24 | |
| 25 def __init__(self, pieces, random, repeat): | |
| 26 self._pieces = pieces | |
| 27 self._random = random | |
|
631
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
28 self._repeat = repeat |
| 629 | 29 |
| 30 def get_next(self): | |
| 31 # Get the next piece | |
|
631
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
32 if self._pieces: |
| 629 | 33 if self._random: |
|
631
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
34 if not self._repeat or len(self._pieces) < 3: |
|
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
35 i = randrange(0, len(self._pieces)) |
| 629 | 36 else: |
| 37 # Ignore the last entry, since we possibly just played it | |
|
631
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
38 i = randrange(0, len(self._pieces) - 1) |
| 629 | 39 else: |
| 40 i = 0 | |
|
631
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
41 result = self._pieces.pop(i) |
| 629 | 42 if self._repeat: |
|
631
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
43 self._pieces.append(result) |
| 629 | 44 return result |
| 45 return None | |
| 107 | 46 |
| 564 | 47 |
| 48 class DummySound(object): | |
| 49 """A dummy sound object. | |
| 50 | |
| 51 This is a placeholder object with the same API as | |
| 52 pygame.mixer.Sound which does nothing. Used when | |
| 53 sounds are disabled so scense don't need to worry | |
| 54 about the details. | |
| 55 | |
| 56 Inpsired by the same idea in Albow (by Greg Ewing)""" | |
| 57 | |
| 565 | 58 def play(self, *args): |
| 59 pass | |
| 564 | 60 |
| 565 | 61 def stop(self): |
| 62 pass | |
| 564 | 63 |
| 565 | 64 def get_length(self): |
| 65 return 0.0 | |
| 564 | 66 |
| 565 | 67 def get_num_channel(self): |
| 68 return 0 | |
| 564 | 69 |
| 565 | 70 def get_volume(self): |
| 71 return 0.0 | |
| 564 | 72 |
| 565 | 73 def fadeout(self, *args): |
| 74 pass | |
| 107 | 75 |
| 534 | 76 |
| 564 | 77 class Sound(object): |
| 78 """Global sound management and similiar useful things""" | |
| 79 | |
| 80 def __init__(self, resource_finder): | |
| 81 self.sound_enabled = False | |
| 82 self.sound_cache = {} | |
| 83 self._resource_finder = resource_finder | |
| 629 | 84 self._current_playlist = None |
| 564 | 85 |
|
576
1b1ab71535bd
Classify constants, which involves a whole bunch of XXX comments
Stefano Rivera <stefano@rivera.za.net>
parents:
572
diff
changeset
|
86 def enable_sound(self, constants): |
| 564 | 87 """Attempt to initialise the sound system""" |
| 88 if pygame_Sound is None: | |
| 89 self.disable_sound(pygame_import_error) | |
| 90 return | |
| 107 | 91 try: |
|
576
1b1ab71535bd
Classify constants, which involves a whole bunch of XXX comments
Stefano Rivera <stefano@rivera.za.net>
parents:
572
diff
changeset
|
92 pygame.mixer.init(constants.snd_freq, |
|
1b1ab71535bd
Classify constants, which involves a whole bunch of XXX comments
Stefano Rivera <stefano@rivera.za.net>
parents:
572
diff
changeset
|
93 constants.snd_bitsize, |
|
1b1ab71535bd
Classify constants, which involves a whole bunch of XXX comments
Stefano Rivera <stefano@rivera.za.net>
parents:
572
diff
changeset
|
94 constants.snd_channels, |
|
1b1ab71535bd
Classify constants, which involves a whole bunch of XXX comments
Stefano Rivera <stefano@rivera.za.net>
parents:
572
diff
changeset
|
95 constants.snd_buffer) |
| 564 | 96 self.sound_enabled = True |
| 629 | 97 music.set_endevent(MUSIC_ENDED) |
| 564 | 98 except pygame.error, exc: |
| 99 self.disable_sound(exc) | |
| 100 | |
| 101 def disable_sound(self, exc=None): | |
| 102 """Disable the sound system""" | |
| 103 self.sound_enabled = False | |
| 104 if exc is not None: | |
| 105 print 'Failed to initialise sound system' | |
| 106 print 'Error: %s' % exc | |
| 107 print 'Sound disabled' | |
| 108 | |
| 109 def get_sound(self, *names): | |
| 110 if not self.sound_enabled: | |
| 565 | 111 return DummySound() |
| 564 | 112 sound = None |
| 113 try: | |
| 577 | 114 path = self._resource_finder.get_resource_path("sounds", *names) |
| 565 | 115 sound = self.sound_cache.get(path, None) |
| 564 | 116 except ResourceNotFound: |
| 577 | 117 print "Sound file not found: %s" % names |
| 564 | 118 # Cache failed lookup |
| 119 sound = DummySound() | |
| 120 self.sound_cache[path] = sound | |
| 121 if sound is None: | |
| 122 try: | |
| 123 sound = pygame_Sound(path) | |
|
570
9c3528c2cbe5
Bug fixes for sound hook-up.
Simon Cross <hodgestar+bzr@gmail.com>
parents:
565
diff
changeset
|
124 except pygame.error: |
| 577 | 125 print "Sound file not found: %s" % names |
| 564 | 126 sound = DummySound() |
| 127 self.sound_cache[path] = sound | |
| 128 return sound | |
| 107 | 129 |
| 564 | 130 def get_playlist(self, pieces, random=False, repeat=False): |
| 629 | 131 return PlayList(pieces, random, repeat) |
| 534 | 132 |
| 629 | 133 def get_music(self, name): |
| 577 | 134 if self.sound_enabled: |
| 629 | 135 music_file = self._resource_finder.get_resource_path("sounds", |
| 136 name) | |
| 137 return music_file | |
| 138 return None | |
| 139 | |
| 140 def music_ended(self): | |
| 141 if self._current_playlist: | |
| 142 # Try start the next tune | |
| 143 self.start_next_music() | |
| 107 | 144 |
| 564 | 145 def change_playlist(self, new_playlist): |
| 577 | 146 if self.sound_enabled: |
|
631
8b78fc07a862
Less buggy non-albow music support
Neil Muller <neil@dip.sun.ac.za>
parents:
629
diff
changeset
|
147 music.stop() |
| 629 | 148 self._current_playlist = new_playlist |
| 149 self.start_next_music() | |
| 150 | |
| 151 def start_next_music(self): | |
| 152 if self._current_playlist: | |
| 153 tune = self._current_playlist.get_next() | |
| 154 if tune: | |
| 155 music.load(tune) | |
| 156 music.play() | |
| 154 | 157 |
| 577 | 158 def get_current_playlist(self): |
| 629 | 159 return self._current_playlist |