Remove DoNotRender.

ppb/features/loadingscene.py

@@ -72,7 +72,7 @@ class ProgressBarLoadingScene(BaseLoadingScene):
     #: Image to use for sprites in the "loaded" state (left side)
     loaded_image: "ppb.Image"
     #: Image to use for sprites in the "unloaded" state (right side)
-    unloaded_image: "ppb.Image" = ppb.flags.DoNotRender
+    unloaded_image: "ppb.Image" = None
 
     def update_progress(self, progress):
         """

ppb/flags.py

@@ -20,7 +20,7 @@ class MyFlag(MyFlagType):
         "This is a flag to indicate a thing."
 """
 
-__all__ = 'Flag', 'DoNotRender'
+__all__ = 'Flag',
 
 
 class FlagMeta(type):
@@ -52,12 +52,6 @@ class Flag(metaclass=FlagMeta, abstract=True):
     """
 
 
-class DoNotRender(Flag):
-    """
-    Inform the renderer to ignore this object.
-    """
-
-
 class BlendMode(Flag, abstract=True):
     """
     A flag indicating a blend mode, changing how translucent sprites are drawn

ppb/sprites.py

@@ -106,7 +106,7 @@ class RenderableMixin:
     :mod:`ppb.assets`.
     """
     #: (:py:class:`ppb.Image`): The image asset
-    image = None  # TODO: Type hint appropriately
+    image = ...  # TODO: Type hint appropriately
     size = 1
     blend_mode: 'ppb.flags.BlendMode' # One of four blending modes
     opacity: int # An opacity value from 0-255
@@ -117,7 +117,7 @@ def __image__(self):
         Returns the sprite's image attribute if provided, or sets a default
         one.
         """
-        if self.image is None:
+        if self.image is ...:
             klass = type(self)
             prefix = Path(klass.__module__.replace('.', '/'))
             try:

ppb/systems/renderer.py

@@ -243,7 +243,7 @@ def prepare_resource(self, game_object):
             return
 
         image = game_object.__image__()
-        if image is flags.DoNotRender or image is None:
+        if image is None:
             return None
 
         surface = image.load()