diff --git a/Palette/env/engine.py b/Palette/env/engine.py
index b91634a..f686daf 100644
--- a/Palette/env/engine.py
+++ b/Palette/env/engine.py
@@ -266,11 +266,11 @@ class SeaEnvEngine(object):
                 self._ship_charging[ship_id] = False
                 self._ship_charging_time_left[ship_id] = 0
                 self.ship_body[ship_id].angle = 1.5*np.pi
-            elif action == DOWN:   
+            elif action == DOWN:
                 self._ship_charging[ship_id] = False
                 self._ship_charging_time_left[ship_id] = 0
                 self.ship_body[ship_id].angle = 0.5*np.pi
-            elif action == LEFT:   # left
+            elif action == LEFT:   
                 self._ship_charging[ship_id] = False
                 self._ship_charging_time_left[ship_id] = 0
                 self.ship_body[ship_id].angle = np.pi