grid.Grid(): getActiveRegion(); returns connected !default regions

tools/grid.py

@@ -183,6 +183,19 @@ class Grid:
         else:
             return list(self.__grid.keys())
 
+    def getActiveRegion(self, start: Coordinate, includeDiagonal: bool = False, ignore: List[Coordinate] = None) \
+        -> List[Coordinate]:
+        if not self.get(start):
+            return []
+        if ignore is None:
+            ignore = []
+        ignore.append(start)
+        for c in self.getNeighboursOf(start, includeDiagonal=includeDiagonal):
+            if c not in ignore:
+                ignore = self.getActiveRegion(c, includeDiagonal, ignore)
+
+        return ignore
+
     def values(self):
         return self.__grid.values()