rl/wer_map_env: only warn about dir map on first step

rl_audio_nav/rl/environments/map_envs/wer_map_env.py

@@ -297,9 +297,11 @@ class RlanWerMapEnv(RlanEnv):
 
                 wer = wer_map_array[n_x, n_y, agent_orientation]
             else:
-                self._logger.warning(
-                    "Array is directional, but WER map isn't!\nFalling back to W[x, y] WER"
-                )
+                # Only warn on the first step, otherwise it is too verbose
+                if self.step_counter == 0:
+                    self._logger.warning(
+                        "Array is directional, but WER map isn't!\nFalling back to W[x, y] WER"
+                    )
                 wer = wer_map_array[n_x, n_y]
 
         else: