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annotate mamba/engine.py @ 24:30d4f3e62bcf

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Refactor widgets *again*, add container to Habitat
author Stefano Rivera <stefano@rivera.za.net>
date Sun, 11 Sep 2011 14:21:50 +0200
parents 6d195a3a4557
children b38411d253e3
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0196455fa432 Minimal event loop.
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1 """Game engine and top-level game loop."""
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3 from mamba.widgets.base import Container
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4 import pygame.event
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5 import pygame.display
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6 from pygame.locals import QUIT, USEREVENT
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9 class Engine(object):
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10 def __init__(self):
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11 self._habitat = None
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13 def set_habitat(self, habitat):
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14 self._habitat = habitat
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16 def run(self):
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17 """Game loop."""
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18 get_events = pygame.event.get
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19 flip = pygame.display.flip
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20 surface = pygame.display.get_surface()
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21 while True:
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22 events = get_events()
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23 for ev in events:
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24 if ev.type is QUIT:
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25 return
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26 self._habitat.dispatch(ev)
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27 self._habitat.draw(surface)
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28 flip()
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31 class Habitat(object):
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33 def __init__(self):
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34 self.container = Container()
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36 def dispatch(self, ev):
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37 self.container.event(ev)
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39 def draw(self, surface):
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40 self.container.draw(ev)
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43 class UserEvent(object):
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44
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45 utype = "UNKNOWN"
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46
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47 @classmethod
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48 def post(cls, **kws):
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49 ev = pygame.event.Event(USEREVENT, utype=cls.utype, **kws)
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50 pygame.event.post(ev)
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52 @classmethod
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53 def matches(cls, ev):
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54 return ev.type is USEREVENT and ev.utype == cls.utype