Changeset 106:bce9cd8a4a8c for nagslang

Timestamp:

09/02/13 11:48:24 (8 years ago)

Author:

Jeremy Thurgood <firxen@…>

Branch:

default

Phase:

public

Message:

FloorLight, linked to a FloorSwitch.

Location:

nagslang

Files:

• game_object.py (modified) (3 diffs)
• screens/area.py (modified) (2 diffs)

nagslang/game_object.py

@@ -9 +9 @@
 
 
+class PuzzleGlue(object):
+    """Glue that holds bits of a puzzle together.
+    """
+    def __init__(self):
+        self._components = {}
+
+    def add_component(self, name, puzzler):
+        self._components[name] = puzzler
+        puzzler.set_glue(self)
+
+    def get_state_of(self, name):
+        return self._components[name].get_state()
+
+
 class Puzzler(object):
-    def get_state(self, space):
-        raise NotImplementedError()
-
-    def notify(self):
-        pass
+    """Behaviour specific to a puzzle component.
+    """
+    def set_glue(self, glue):
+        self.glue = glue
+
+    def get_state(self):
+        raise NotImplementedError()
 
 
@@ -27 +43 @@
                 return True
         return False
+
+
+class StateProxyPuzzler(Puzzler):
+    def __init__(self, state_source):
+        self._state_source = state_source
+
+    def get_state(self):
+        return self.glue.get_state_of(self._state_source)
 
 
@@ -186 +210 @@
             self.shape.color = pygame.color.THECOLORS['red']
         super(FloorSwitch, self).render(surface)
+
+
+class FloorLight(GameObject):
+    def __init__(self, space, position, state_source):
+        body = pymunk.Body()
+        body.position = position
+        self.shape = pymunk.Circle(body, 10)
+        self.shape.collision_type = COLLISION_TYPE_SWITCH
+        self.shape.sensor = True
+        super(FloorLight, self).__init__(
+            SingleShapePhysicser(space, self.shape),
+            ShapeRenderer(self.shape),
+            StateProxyPuzzler(state_source),
+        )
+
+    def render(self, surface):
+        if self.puzzler.get_state():
+            self.shape.color = pygame.color.THECOLORS['green']
+        else:
+            self.shape.color = pygame.color.THECOLORS['red']
+        super(FloorLight, self).render(surface)

nagslang/screens/area.py

@@ -6 +6 @@
 
 from nagslang.events import ScreenChange
-from nagslang.game_object import FloorSwitch
+from nagslang.game_object import FloorSwitch, FloorLight, PuzzleGlue
 from nagslang.level import Level
 from nagslang.protagonist import Protagonist
@@ -54 +54 @@
         self.add_protagonist()
         # TODO: Put this in a level instead:
-        self._drawables.append(FloorSwitch(self.space, (300, 400)))
+        glue = PuzzleGlue()
+        switch = FloorSwitch(self.space, (300, 400))
+        light = FloorLight(self.space, (300, 500), 'switch')
+        glue.add_component('switch', switch.puzzler)
+        glue.add_component('light', light.puzzler)
+        self._drawables.append(switch)
+        self._drawables.append(light)
 
     def add_walls(self):