X-Git-Url: https://git.ctpug.org.za/?a=blobdiff_plain;f=koperkapel%2Fscenes%2Fbase.py;h=8bc803ae2ba0fbdc29db684f643be3a046300b17;hb=97b5c90d555fd2e24d99a4c37a08a56cccf92902;hp=26ee7819007dd06b132525175cb9fd2c84627193;hpb=8ed75cacf6664d0018859c9c84e99554c08ab801;p=koperkapel.git

diff --git a/koperkapel/scenes/base.py b/koperkapel/scenes/base.py
index 26ee781..8bc803a 100644
--- a/koperkapel/scenes/base.py
+++ b/koperkapel/scenes/base.py
@@ -165,7 +165,17 @@ class Actors:
     def draw(self, screen):
         for lvl, name in self._ordered_layers:
             for actor in self._layers[name]:
-                actor.draw()  # TODO: allow an option screen to be passed in
+                # actor.draw doesn't allow blitting to anything other than
+                # the game scene
+                screen.blit(actor._surf, actor.topleft)
+
+
+def defer_to_update(f):
+    """ Defers a function until the next update run. """
+    @functools.wraps(f)
+    def wrapper(self, *args, **kw):
+        self._deferred_updates.append((f, args, kw))
+    return wrapper
 
 
 class Scene:
@@ -174,6 +184,7 @@ class Scene:
     def __init__(self):
         self.actors = Actors()
         self.viewport = (0, 0)
+        self._deferred_updates = []
 
     def move_screen(self, offset):
         self.viewport = (self.viewport[0] + offset[0],
@@ -190,7 +201,9 @@ class Scene:
         pass
 
     def update(self, world, engine, dt):
-        pass
+        deferred_updates, self._deferred_updates = self._deferred_updates, []
+        for f, args, kw in deferred_updates:
+            f(self, world, *args, **kw)
 
     def draw(self, screen):
         screen.clear()