tabakrolletjie/events.py

   1 """ Custom events. """
   2
   3 import pygame.event
   4 import pygame.locals as pgl
   5
   6
   7 class TabakEvent(object):
   8     TYPE = "UNKNOWN"
   9     ATTRIBUTES = set()
  10
  11     @classmethod
  12     def post(cls, **attributes):
  13         assert set(attributes.keys()) == cls.ATTRIBUTES
  14         ev = pygame.event.Event(
  15             pgl.USEREVENT, tabak_type=cls.TYPE, **attributes)
  16         pygame.event.post(ev)
  17
  18     @classmethod
  19     def matches(cls, ev):
  20         return (ev.type == pgl.USEREVENT and ev.tabak_type == cls.TYPE)
  21
  22
  23 class QuitEvent(TabakEvent):
  24     TYPE = "QUIT"
  25
  26
  27 class SceneChangeEvent(TabakEvent):
  28     TYPE = "SCENE_CHANGE"
  29     ATTRIBUTES = {'scene'}