Fixing bug in python-viewer with draw event callable argument (#1558)

facebookresearch · Nov 3, 2021 · b1c5583 · b1c5583
1 parent 756027f
commit b1c5583
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/examples/viewer.py b/examples/viewer.py
@@ -109,7 +109,8 @@ def draw_event(self, simulation_call: Optional[Callable] = None) -> None:
                 # even if time_since_last_simulation is quite large
                 self.sim.step_world(1.0 / 60.0)
                 self.simulate_single_step = False
-                simulation_call()
+                if simulation_call:
+                    simulation_call()
 
             # reset time_since_last_simulation, accounting for potential overflow
             self.time_since_last_simulation = math.fmod(