diff --git a/tools/grid.py b/tools/grid.py
index 0bb695a..d90cae6 100644
--- a/tools/grid.py
+++ b/tools/grid.py
@@ -3,7 +3,6 @@ from .coordinate import Coordinate
 from enum import Enum
 from typing import Union, Any
 
-OFF_STATES = [False, 0, None]
 OFF = False
 ON = True
 
@@ -51,9 +50,9 @@ class Grid:
         if pos.z is not None:
             self.mode3D = True
 
-        if (value == self.__default or value in OFF_STATES) and pos in self.__grid:
+        if (value == self.__default) and pos in self.__grid:
             del self.__grid[pos]
-        elif value != self.__default and value not in OFF_STATES:
+        elif value != self.__default:
             self.__trackBoundaries(pos)
             self.__grid[pos] = value
 
@@ -63,12 +62,6 @@ class Grid:
         else:
             return self.__default
 
-    def getState(self, pos: Coordinate) -> bool:
-        if pos not in self.__grid:
-            return False
-        else:
-            return self.__grid[pos] not in OFF_STATES
-
     def getOnCount(self):
         return len(self.__grid)