busy channel count

pgfw/extension.py

@@ -2,6 +2,7 @@ from random import randint
 from math import sin, cos, atan2, radians, sqrt
 
 from pygame import Surface, PixelArray
+from pygame.mixer import get_num_channels, Channel
 from pygame.locals import *
 
 def get_step(start, end, speed):
@@ -135,3 +136,9 @@ def get_color_swapped_surface(surface, current, replacement):
     pixels.replace(current, replacement)
     del pixels
     return swapped
+
+def get_busy_channel_count():
+    count = 0
+    for index in xrange(get_num_channels()):
+        count += Channel(index).get_busy()
+    return count