Allowing gazebo_world_file arg to be passed in (#148) (#149)

* Allowing gazebo_world_file arg to be passed in

* updating gazebo_world_file arg in launch file

* updating gazebo_world_file arg in launch file

* Pre-commit

---------

Co-authored-by: Evan Palmer <evanp922@gmail.com>
(cherry picked from commit 01b385d)

Co-authored-by: Tim Huff <89954856+timmarkhuff@users.noreply.github.com>

Author: mergify[bot]

blue_bringup/launch/bluerov2/bluerov2.launch.py

@@ -133,7 +133,9 @@ def generate_launch_description() -> LaunchDescription:
                     "use_sim": LaunchConfiguration("use_sim"),
                     "use_rviz": LaunchConfiguration("use_rviz"),
                     "rviz_config": LaunchConfiguration("rviz_config"),
-                    "gazebo_world_file": "bluerov2_underwater.world",
+                    "gazebo_world_file": LaunchConfiguration(
+                        "gazebo_world_file", default="bluerov2_underwater.world"
+                    ),
                     "prefix": LaunchConfiguration("prefix"),
                     "robot_description": robot_description,
                     "use_joy": LaunchConfiguration("use_joy"),

blue_bringup/launch/bluerov2_heavy/bluerov2_heavy.launch.py

@@ -133,7 +133,9 @@ def generate_launch_description() -> LaunchDescription:
                     "use_sim": LaunchConfiguration("use_sim"),
                     "use_rviz": LaunchConfiguration("use_rviz"),
                     "rviz_config": LaunchConfiguration("rviz_config"),
-                    "gazebo_world_file": "bluerov2_heavy_underwater.world",
+                    "gazebo_world_file": LaunchConfiguration(
+                        "gazebo_world_file", default="bluerov2_heavy_underwater.world"
+                    ),
                     "prefix": LaunchConfiguration("prefix"),
                     "robot_description": robot_description,
                     "use_joy": LaunchConfiguration("use_joy"),

blue_bringup/launch/bluerov2_heavy_reach/bluerov2_heavy_reach.launch.py

@@ -133,7 +133,10 @@ def generate_launch_description() -> LaunchDescription:
                     "use_sim": LaunchConfiguration("use_sim"),
                     "use_rviz": LaunchConfiguration("use_rviz"),
                     "rviz_config": LaunchConfiguration("rviz_config"),
-                    "gazebo_world_file": "bluerov2_heavy_reach_underwater.world",  # noqa
+                    "gazebo_world_file": LaunchConfiguration(
+                        "gazebo_world_file",
+                        default="bluerov2_heavy_reach_underwater.world",
+                    ),  # noqa
                     "prefix": LaunchConfiguration("prefix"),
                     "robot_description": robot_description,
                     "use_joy": LaunchConfiguration("use_joy"),