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This is a repository which makes it possible to navigate the vessel with a joystick. The node is working on joy_node from the ROS enviroment.
Here is the code that will install the package.
git clone https://github.com/Njord-The-Autonomous-Ship-Challenge/joy_ctrl.git
chmod +x ~/catkin_ws/src/joy_ctrl/install_requirements.sh
chmod +x ~/catkin_ws/src/joy_ctrl/scripts/joy_ctrl_client.py
Here is how to launch the node (needs to be launched after a scenario is launched).