diff --git a/squirrelbattle/mapgeneration/broguelike.py b/squirrelbattle/mapgeneration/broguelike.py
index f60d423..0a92180 100644
--- a/squirrelbattle/mapgeneration/broguelike.py
+++ b/squirrelbattle/mapgeneration/broguelike.py
@@ -28,6 +28,20 @@ class Generator:
     def __init__(self, params: dict = DEFAULT_PARAMS):
         self.params = params
 
+    @staticmethod
+    def room_fits(level, y, x, room, door_y, door_x, dy, dx):
+        if level[y][x] != Tile.EMPTY or level[y-dy][x-dx] != Tile.FLOOR:
+            return False
+        lh, lw = len(level), len(level[0])
+        rh, rw = len(room), len(room[0])
+        for ry in range(rh):
+            for rx in range(rw):
+                if room[y][x] == Tile.FLOOR:
+                    ly, lx = ry - door_y, rx - door_x
+                    if not(0 <= ly <= rh and 0 <= lx <= rw) or \
+                            level[ly][lx] == Tile.FLOOR:
+                        return False
+        return True
     def corr_meta_info(self):
         if random() < self.params["corridor_chance"]:
             h_sup = randint(self.params["min_h_corr"], \