Changeset 95:ecba9550ad8d

Timestamp:

Sep 2, 2013, 9:20:04 AM (7 years ago)

Author:

Neil Muller <drnlmuller@…>

Branch:

default

rebase_source:

47caccec504010a8e8be52f2d1d96acc5a675497

Message:

Fill the exterior with the blackness of space

File:

• nagslang/level.py (modified) (4 diffs)

nagslang/level.py

@@ -25 +25 @@
         self._tile_image = None
         self._surface = None
+        self._exterior = False
 
     def load(self):
@@ -63 +64 @@
             add_polygon(polygon, index, num_points)
 
-    def save(self):
+    def all_closed(self):
+        """Check if all the polygons are closed"""
         closed = True
         for poly in self.polygons.values():
@@ -75 +77 @@
                 closed = False
                 print "\033[31mError: polygon not closed\033[0m"
+        return closed
+
+    def save(self):
+        closed = self.all_closed()
         if not closed:
             print 'Not saving the level'
@@ -114 +120 @@
     def get_background(self):
         self._draw_background()
+        self._draw_exterior()
         # Draw polygons
         self._draw_walls()
         return self._surface
+
+    def _draw_exterior(self, force=False):
+        """Fill the exterior of the level with black"""
+        if self._exterior and not force:
+            return
+        surface = pygame.surface.Surface((self.x, self.y), pgl.SRCALPHA)
+        surface.fill(pygame.color.THECOLORS["black"])
+        for index, polygon in self.polygons.items():
+            if len(polygon) > 1:
+                pointlist = [self.point_to_pygame(p) for p in polygon]
+                # filled polygons
+                pygame.draw.polygon(surface, pygame.color.THECOLORS['white'],
+                        pointlist, 0)
+        self._surface.blit(surface, (0, 0), special_flags=pgl.BLEND_RGBA_MULT)
+        self._exterior = True
 
     def _draw_background(self, force=False):