squirrelbattle/mapgeneration/broguelike.py

@@ -26,9 +26,11 @@ DEFAULT_PARAMS = {
     "spawn_per_region": [1, 2],
 }
 
-def dist(level, y1, x1, y2, x2):
+
+def dist(level: List[List[Tile]], y1: int, x1: int, y2: int, x2: int) -> int:
     """
-    Compute the minimum walking distance between points (y1, x1) and (y2, x2) on a Tile grid
+    Compute the minimum walking distance between points (y1, x1) and (y2, x2)
+    on a Tile grid
     """
     # simple breadth first search
     copy = [[t for t in row] for row in level]
@@ -60,9 +62,9 @@ class Generator:
                   room: List[List[Tile]], door_y: int, door_x: int,
                   dy: int, dx: int) -> bool:
         """
-        Using point (door_y, door_x) in the room as a reference and placing it 
+        Using point (door_y, door_x) in the room as a reference and placing it
         over point (y, x) in the level, returns whether or not the room fits
-        here 
+        here
         """
         lh, lw = len(level), len(level[0])
         rh, rw = len(room), len(room[0])
@@ -93,7 +95,7 @@ class Generator:
     def place_room(level: List[List[Tile]], y: int, x: int,
                    room: List[List[Tile]], door_y: int, door_x: int) -> None:
         """
-        Mutates level in place to add the room. Placement is determined by 
+        Mutates level in place to add the room. Placement is determined by
         making (door_y, door_x) in the room correspond with (y, x) in the level
         """
         rh, rw = len(room), len(room[0])
@@ -106,11 +108,11 @@ class Generator:
     @staticmethod
     def add_loop(level: List[List[Tile]], y: int, x: int) -> bool:
         """
-        Try to add a corridor between two far apart floor tiles, passing 
+        Try to add a corridor between two far apart floor tiles, passing
         through point (y, x).
         """
         h, w = len(level), len(level[0])
-        
+
         if level[y][x] != Tile.EMPTY:
             return False
 
@@ -128,8 +130,8 @@ class Generator:
                 continue
 
             def verify_sides() -> bool:
-                # switching up dy and dx here pivots the axis, so 
-                # (y+dx, x+dy) and (y-dx, x-dy) are the tiles adjacent to 
+                # switching up dy and dx here pivots the axis, so
+                # (y+dx, x+dy) and (y-dx, x-dy) are the tiles adjacent to
                 # (y, x), but not on the original axis
                 for delta_x, delta_y in [[dy, dx], [-dy, -dx]]:
                     for i in range(1, y2 - y1 + x2 - x1):
@@ -194,8 +196,8 @@ class Generator:
                    dy: int, dx: int, length: int) -> bool:
         """
         Tries to build the exit from the room at given coordinates
-        Depending on parameter length, it will either attempt to build a 
-        simple door, or a long corridor.  Return value is a boolean 
+        Depending on parameter length, it will either attempt to build a
+        simple door, or a long corridor.  Return value is a boolean
         signifying whether or not the exit was successfully built
         """
         rh, rw = len(room), len(room[0])
@@ -247,15 +249,15 @@ class Generator:
             if room[y][x] == Tile.EMPTY and \
                     Generator.build_door(room, y, x, dy, dx, length):
                 break
-        else:
-            return None, None
+        else:  # pragma: no cover
+            return None, None, None, None
 
         return y + length * dy, x + length * dx, dy, dx
 
     def create_circular_room(self, spawnable: bool = True) \
             -> Tuple[List[List[Tile]], int, int, int, int]:
         """
-        Create and return as a tile grid a room that is circular in shape, and 
+        Create and return as a tile grid a room that is circular in shape, and
         may have a center, also circular hole
         Also return door info so we know how to place the room in the level
         """
@@ -298,7 +300,7 @@ class Generator:
     def create_random_room(self, spawnable: bool = True) \
             -> Tuple[List[list], int, int, int, int]:
         """
-        Randomly select a room shape and return one such room along with its 
+        Randomly select a room shape and return one such room along with its
         door info. Set spawnable to False is the room should be marked as a
         potential spawning region on the map
         """
@@ -319,12 +321,12 @@ class Generator:
     def update_spawnable(self, y: int, x: int) -> None:
         """
         Convert previous spawn positions relative to the room grid to actual
-        actual spawn positions on the level grid, using the position of the 
-        top left corner of the room on the level, then log them as a 
+        actual spawn positions on the level grid, using the position of the
+        top left corner of the room on the level, then log them as a
         spawnable region
         """
-        if self.queued_area != None:
-            translated_area = [[y+ry, x+rx] for ry, rx in self.queued_area]
+        if self.queued_area is not None:
+            translated_area = [[y + ry, x + rx] for ry, rx in self.queued_area]
             self.spawn_areas.append(translated_area)
         self.queued_area = None
 
@@ -333,11 +335,6 @@ class Generator:
         Populate every spawnable area with some randomly chosen, randomly
         placed entity
         """
-        if self.queued_area is not None:
-            translated_area = [[y + ry, x + rx] for ry, rx in self.queued_area]
-            self.spawn_areas.append(translated_area)
-        self.queued_area = None
-
         min_c, max_c = self.params["spawn_per_region"]
         for region in self.spawn_areas:
             entity_count = randint(min_c, max_c)