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"""audio class, helps everyone to audio"""
import pygame, os
from pygame.locals import *
import game, input
mixer = music = None
sound_cache = {}
def initialize():
global mixer, music
try:
import pygame.mixer as pymix
pymix.init(22000, 8, 0)
mixer = pymix
music = pymix.music
return 1
except (ImportError, pygame.error):
return 0
def preload(*names):
"loads a sound into the cache"
if not mixer:
for name in names:
sound_cache[name] = None
return
for name in names:
if name not in sound_cache:
fullname = os.path.join('data', 'audio', name+'.wav')
#file = game.get_resource(name+'.wav')
try: sound = mixer.Sound(fullname)
except: sound = None
sound_cache[name] = sound
def fetch(name):
if name not in sound_cache:
preload(name)
return sound_cache[name]
def play(name, volume=1.0, pos=-1):
prefvolume = [0, 0.6, 1.0][game.volume]
volume *= prefvolume
if not volume:
return
sound = fetch(name)
if sound:
chan = sound.play()
if not chan:
chan = pygame.mixer.find_channel(1)
chan.play(sound)
if chan:
if pos == -1:
percent = 0.5
else:
percent = (pos / 700.0)
inv = 1.0 - percent
chan.set_volume(inv*volume, percent*volume)
CurrentSong = None
CurrentVolume = 1.0
SwitchingSongs = 0
def playmusic(musicname, volume=1.0):
global CurrentSong, SwitchingSongs, CurrentVolume
if musicname == CurrentSong:
return
CurrentSong = musicname
CurrentVolume = volume
if not music or not game.music: return
if SwitchingSongs:
CurrentSong = musicname
SwitchingSongs = 1
if music.get_busy():
music.set_endevent(input.FINISHMUSIC)
music.fadeout(1000)
else:
prefvolume = [0, 0.6, 1.0][game.music]
fullname = os.path.join('data', 'music', musicname)
music.load(fullname)
music.play(-1)
music.set_volume(prefvolume*CurrentVolume)
def finish_playmusic():
global CurrentSong, SwitchingSongs, CurrentVolume
SwitchingSongs = 0
prefvolume = [0, 0.6, 1.0][game.music]
fullname = os.path.join('data', 'music', CurrentSong)
music.load(fullname)
music.play(-1)
music.set_volume(prefvolume*CurrentVolume)
def tweakmusicvolume():
if not music:
return
prefvolume = [0, 0.6, 1.0][game.music]
if not prefvolume:
music.stop()
if CurrentSong and not music.get_busy():
fullname = os.path.join('data', 'music', CurrentSong)
music.load(fullname)
music.play(-1)
music.set_volume(prefvolume*CurrentVolume)
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