Mercurial > fife-parpg

annotate demos/shooter/scripts/soundmanager.py @ 491:c4168eb47a44

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Adding some comments to the shooter demo. Updated the copyright date and FIFE URL as well.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 06 May 2010 19:34:21 +0000
parents 939a4dc12ca1
children
rev   line source
480
85fa5fa486a8 Added a simple sound manager.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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1 # -*- coding: utf-8 -*-
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2
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3 # ####################################################################
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4 # Copyright (C) 2005-2010 by the FIFE team
c4168eb47a44 Adding some comments to the shooter demo. Updated the copyright date and FIFE URL as well.
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5 # http://www.fifengine.net
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6 # This file is part of FIFE.
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7 #
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8 # FIFE is free software; you can redistribute it and/or
85fa5fa486a8 Added a simple sound manager.
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9 # modify it under the terms of the GNU Lesser General Public
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10 # License as published by the Free Software Foundation; either
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11 # version 2.1 of the License, or (at your option) any later version.
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12 #
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13 # This library is distributed in the hope that it will be useful,
85fa5fa486a8 Added a simple sound manager.
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
85fa5fa486a8 Added a simple sound manager.
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
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16 # Lesser General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU Lesser General Public
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19 # License along with this library; if not, write to the
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20 # Free Software Foundation, Inc.,
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21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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22 # ####################################################################
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23
85fa5fa486a8 Added a simple sound manager.
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24 from fife import fife
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25
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7f1c42b66aa4 Moved the shooter demo Timer() class to helpers.py.
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26 from scripts.common.helpers import Timer
7f1c42b66aa4 Moved the shooter demo Timer() class to helpers.py.
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27 from fife.extensions.pychan.tools import callbackWithArguments as cbwa
485
d365eb58f3d6 SoundClip can now fire a callback after a sound has completed being played (i.e. the duration of the sound has passed by). I have added an example of this with the scene music. [t:346]
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28
483
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29 class SoundClip(object):
490
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30 """
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31 SoundClip
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32
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33 This class stores an instance of a FIFE SoundEmitter class along
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34 with some information about a sound clip (like gain and if its
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35 looping). All instances of SoundClip should be created by SoundManager.
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36 """
483
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37 def __init__(self, soundmanager, clipid, soundname, emitter):
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c4168eb47a44 Adding some comments to the shooter demo. Updated the copyright date and FIFE URL as well.
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38 """
c4168eb47a44 Adding some comments to the shooter demo. Updated the copyright date and FIFE URL as well.
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39 @param soundmanager A reference to the SoundManager
c4168eb47a44 Adding some comments to the shooter demo. Updated the copyright date and FIFE URL as well.
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40 @param clipid The FIFE sound clip ID from the sound clip pool
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41 @param soundname The filename of the sound
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42 @param emitter A reference to the FIFE SoundEmitter associated with this clip
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43
c4168eb47a44 Adding some comments to the shooter demo. Updated the copyright date and FIFE URL as well.
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44 """
483
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45 self._soundmanager = soundmanager
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46 self._name = soundname
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47
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48 #The FIFE SoundEmitter associated with this SoundClip.
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49 #Note that we do NOT own the emitter.
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50 self._fifeemitter = emitter
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51 self._fifeemitter.thisown = 0
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52 self._fifeclipid = clipid
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53
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54 #0 = mute, 255 = normal volume
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55 self._gain = 255.0
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56 self._looping = False
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57
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58 #if you set the callback it will be executed after the sound
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59 #has finished playing.
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60 self._callback = None
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61
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62 #length of the sound
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63 self._duration = 0
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64
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d365eb58f3d6 SoundClip can now fire a callback after a sound has completed being played (i.e. the duration of the sound has passed by). I have added an example of this with the scene music. [t:346]
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65 self._timer = None
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66
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67 def _getClipID(self):
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68 return self._fifeclipid
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69
481
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70 def _getGain(self):
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71 return self._gain
1f37adc9a685 Added a SoundEmitter class that encapsulates the FIFE sound emitter. The SoundManager is now a factory for SoundEmitters. Also working on getting a callback going for when the sound is finished playing.
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72
1f37adc9a685 Added a SoundEmitter class that encapsulates the FIFE sound emitter. The SoundManager is now a factory for SoundEmitters. Also working on getting a callback going for when the sound is finished playing.
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73 def _setGain(self, gain):
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74 self._gain = float(gain)
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75
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76 def _getLooping(self):
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77 return self._looping
481
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78
483
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79 def _setLooping(self, looping):
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80 self._looping = looping
481
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81
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82 def _getFifeEmitter(self):
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83 return self._fifeemitter
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84
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85 def _setFifeEmitter(self, emitter):
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86 self._fifeemitter = emitter
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87 if self._fifeemitter:
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88 self._fifeemitter.thisown = 0
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89
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90 def _getName(self):
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91 return self._name
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92
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d365eb58f3d6 SoundClip can now fire a callback after a sound has completed being played (i.e. the duration of the sound has passed by). I have added an example of this with the scene music. [t:346]
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93 def _getCallback(self):
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94 return self._callback
d365eb58f3d6 SoundClip can now fire a callback after a sound has completed being played (i.e. the duration of the sound has passed by). I have added an example of this with the scene music. [t:346]
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95
d365eb58f3d6 SoundClip can now fire a callback after a sound has completed being played (i.e. the duration of the sound has passed by). I have added an example of this with the scene music. [t:346]
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96 def _setCallback(self, cb):
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97 self._callback = cb
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98
d365eb58f3d6 SoundClip can now fire a callback after a sound has completed being played (i.e. the duration of the sound has passed by). I have added an example of this with the scene music. [t:346]
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99 def _getDuration(self):
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100 return self._duration
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101
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102 def _setDuration(self, millliseconds):
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103 self._duration = millliseconds
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104
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105 def _getTimer(self):
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106 return self._timer
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107
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108 def _setTimer(self, timer):
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109 self._timer = timer
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110
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111 timer = property(_getTimer, _setTimer)
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112 clipid = property(_getClipID)
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113 gain = property(_getGain, _setGain)
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114 looping = property(_getLooping, _setLooping)
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115 fifeemitter = property(_getFifeEmitter, _setFifeEmitter)
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116 name = property(_getName)
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117 callback = property(_getCallback, _setCallback)
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118 duration = property(_getDuration, _setDuration)
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119
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120 class SoundManager(object):
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121 """
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122 SoundManger
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123
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124 This class manages and plays all the sounds of the game.
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125 It creates SoundClips and ensures that there is only one
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126 FIFE SoundEmitter per unique sound.
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127 """
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128 def __init__(self, engine):
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129 """
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130 @param engine A reference to the FIFE engine
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131 """
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132 self._engine = engine
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133
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134 self._fifesoundmanager = self._engine.getSoundManager()
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135 self._fifesoundmanager.init()
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136
491
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137 #A dict of fife emitters
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138 self._loadedclips = {}
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139
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140 def loadSoundClip(self, filename):
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141 """
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142 Returns a valid SoundClip instance.
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143
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144 @param filename the relative path and filename of the sound file
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145
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146 @return Returns a new SoundClip instance.
490
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147 """
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148 if not self._loadedclips.has_key(filename):
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149 clipid = self._engine.getSoundClipPool().addResourceFromFile(filename)
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150 fifeemitter = self._fifesoundmanager.createEmitter()
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151 fifeemitter.thisown = 0
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152 fifeemitter.setSoundClip(clipid)
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153
490
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154 self._loadedclips[filename] = fifeemitter
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155 clip = SoundClip(self, clipid, filename, fifeemitter)
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156 clip.duration = fifeemitter.getDuration()
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157 else:
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158 fifeemitter = self._loadedclips[filename]
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159 clip = SoundClip(self, fifeemitter.getID(), filename, fifeemitter)
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160 clip.duration = fifeemitter.getDuration()
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161
490
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162 return clip
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163
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164 def playClip(self, clip):
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165 """
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166 Plays a sound clip.
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167
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168 This function does not use the FIFE
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169 emitters "looping" property to loop a sound. Instead
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170 it registers a new timer and uses the duration of the
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171 clip as the timer length.
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172
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173 If the SoundClip is invalid (no fifeemitter) then
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174 it attempts to load it before playing it.
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175
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176 Note that this will stop any clips that use the same
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177 FIFE emitter. You cannot play the same sound more than
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178 once at a time.
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179
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180 @param clip The SoundClip to be played
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181 """
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182
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183 if clip.fifeemitter:
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184 if clip.callback:
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185 if clip.timer:
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186 clip.timer.stop()
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187 timer = None
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188
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189 if clip.looping:
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190 repeat = 0
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191 def real_callback(c, e, g):
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192 c()
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193 e.stop()
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194 e.setGain(g)
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195 e.play()
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196
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197 clip.callback = cbwa(real_callback, clip.callback, clip.fifeemitter, clip.gain)
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198
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199 else:
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200 repeat = 1
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201
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202 clip.timer = Timer(self._engine.getTimeManager(), clip.duration, clip.callback, repeat)
485
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203 clip.timer.start()
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204
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205 clip.fifeemitter.setGain(clip.gain)
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206 clip.fifeemitter.play()
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207 else:
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208 clip = self.loadSoundClip(clip.name)
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209 self.playClip(clip)
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210
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211 def stopClip(self, clip):
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212 """
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213 Stops playing the sound clip. Note that this will
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214 affect all clips that use the same FIFE emitter.
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215
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216 @parm clip The SoundClip to stop.
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217 """
483
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218 if clip.fifeemitter:
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219 clip.fifeemitter.stop()
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220
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221 if clip.timer:
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222 clip.timer.stop()
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223 clip.timer = None
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224
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225 def stopAllSounds(self):
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226 for emitter in self._loadedclips.values():
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227 emitter.stop()
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228
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229 def destroy(self):
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230 """
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231 Releases all FIFE emitters. This does not free the resources
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232 from the FIFE sound clip pool.
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233 """
485
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234 self.stopAllSounds()
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235
490
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236 for emitter in self._loadedclips.values():
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237 self._fifesoundmanager.releaseEmitter(emitter.getID())
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238 emitter = None
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239
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240 self._loadedclips.clear()