Made Map.neighbourhood a static method

squirrelbattle/interfaces.py

@@ -192,16 +192,19 @@ class Map:
         dictclasses = Entity.get_all_entity_classes_in_a_dict()
         for entisave in d["entities"]:
             self.add_entity(dictclasses[entisave["type"]](**entisave))
-    def neighbourhood(self, y, x, large=False):
+
+    @staticmethod
+    def neighbourhood(grid, y, x, large=False):
         """
         Returns up to 8 nearby coordinates, in a 3x3 square around the input coordinate if large is
         set to True, or in a 5-square cross by default. Does not return coordinates if they are out
         of bounds.
         """
+        height, width = len(grid), len(grid[0])
         neighbours = []
         dyxs = product([-1, 0, 1], [-1, 0, 1]) if large else [[0, -1], [0, 1], [-1, 0], [1, 0]]
         for dy, dx in dyxs:
-            if 0 < y+dy < self.height and 0 < x+dx < self.width:
+            if 0 < y+dy < height and 0 < x+dx < width:
                 neighbours.append([y+dy, x+dx])
         return neighbours