code/sound.py

   1 #
   2 # 20,000 Light Years Into Space
   3 # This game is licensed under GPL v2, and copyright (C) Jack Whitham 2006-07.
   4 #
   5
   6
   7 import pygame
   8 from pygame.locals import *
   9
  10 import resource, time
  11
  12 last_time = 0
  13
  14 def FX(name):
  15     global last_time
  16     cur_time = time.time()
  17     if (cur_time-last_time>1):
  18       s = resource.Load_Sound(name) # (comes from a cache)
  19       if ( s != None ):
  20           s.play()
  21           last_time=cur_time;
  22
  23
  24 class Persisting_Sound:
  25     def __init__(self, name, secondary=None):
  26         self.sobj = resource.Load_Sound(name)
  27         if ( secondary != None ):
  28             # A different, less annoying mode.
  29             self.sobj2 = resource.Load_Sound(secondary)
  30         else:
  31             self.sobj2 = self.sobj
  32
  33         self.schan = None
  34
  35     def Set(self, volume):
  36         if (( self.sobj == None )
  37         or ( self.sobj2 == None )):
  38             return
  39
  40         if ( volume <= 0.0 ):
  41             self.sobj.stop()
  42             self.sobj2.stop()
  43         else:
  44             self.sobj.set_volume(volume)
  45             self.sobj2.set_volume(volume)
  46             if (( self.schan == None )
  47             or ( not ( self.schan.get_sound()
  48                             in [ self.sobj , self.sobj2 ] ))):
  49                 self.schan = self.sobj.play()
  50
  51             self.schan.queue(self.sobj2)
  52
  53     def Fade_Out(self):
  54         if (( self.sobj == None )
  55         or ( self.sobj2 == None )
  56         or ( self.schan == None )):
  57             return
  58
  59         self.schan.queue(self.sobj2)
  60         self.sobj2.fadeout(200)
  61
  62
  63