fix type errors

Author: pfandzelter

celestial/animation.py

@@ -253,6 +253,8 @@ def __init__(
         self.gst_actor = types.SimpleNamespace()
         self.gst_link_actor = types.SimpleNamespace()
 
+        self.lock = td.Lock()
+
         # print(f"Animation: initializing with {self.gst_num} ground stations")
 
         self.makeGstActor(self.gst_num)
@@ -460,7 +462,7 @@ def makeRenderWindow(self) -> None:
         self.interactor.Initialize()
         # set up a timer to call the update function at a max rate
         # of every 7 ms (~144 hz)
-        self.lock = td.Lock()
+
         self.interactor.AddObserver("TimerEvent", self._updateAnimation)
         self.interactor.CreateRepeatingTimer(self.frequency)
 

celestial/shell.py

@@ -717,7 +717,7 @@ def _numba_update_plus_grid_links(
             link_array[isl_idx]["distance_m"] = np.uint32(d)
 
         gst_link_id = 0
-        MAX_INT32 = 2**31 - 1
+        MAX_INT32 = np.uint32(np.iinfo(np.uint32).max)
         for gst in gst_array:
             shortest_d = MAX_INT32