sound effect

README

@@ -32,7 +32,7 @@ class SampleGame(Game):
 
 
 if __name__ == '__main__':
-    SampleGame().play()
+    SampleGame().run()
 
 
 License

pgfw/Audio.py

@@ -48,3 +48,27 @@ class Audio(GameChild):
                 if sound not in self.original_volumes.keys():
                     self.original_volumes[sound] = sound.get_volume()
                 sound.set_volume(self.original_volumes[sound] * self.volume)
+
+
+class SoundEffect(GameChild, Sound):
+
+    def __init__(self, parent, path, volume=1.0):
+        GameChild.__init__(self, parent)
+        Sound.__init__(self, path)
+        self.display_surface = self.get_display_surface()
+        self.initial_volume = volume
+        self.set_volume(volume)
+
+    def play(self, loops=0, maxtime=0, fade_ms=0, position=None, x=None):
+        self.set_volume(self.initial_volume *
+                        self.get_configuration("audio", "sfx-volume"))
+        channel = Sound.play(self, loops, maxtime, fade_ms)
+        if x is not None:
+            position = float(x) / self.display_surface.get_width()
+	if position is not None and channel is not None:
+            channel.set_volume(*self.get_panning(position))
+        return channel
+
+    def get_panning(self, position):
+        return 1 - max(0, ((position - .5) * 2)), \
+               1 + min(0, ((position - .5) * 2))

sample.py

@@ -21,4 +21,4 @@ class SampleGame(Game):
 
 if __name__ == '__main__':
     # the play method begins the project's animation
-    SampleGame().play()
+    SampleGame().run()