# Demo: Drone Simulation with Gazebo
## Prerequisites
- [ROS2 Humble installed](https://docs.ros.org/en/humble/Installation.html) or later
- [Gazebo installed](https://gazebosim.org/docs/fortress/install/)
- Gazebo ROS2 Bridge installed:
```bash
sudo apt install ros-humble-ros-gz-bridge \
ros-humble-ros-gz-sim \
ros-humble-ros-gz-image \
ros-humble-ros-gz-interfaces
```
## Instruction
1. Launch Gazebo:
```bash
ign gazebo
```
2. Select the `Quadcopter Teleop` world.
3. `Start the simulation` by clicking the `Play` button.
4. In a `second terminal`, start the `ROS–Gazebo` bridge:
```bash
ros2 run ros_gz_bridge parameter_bridge \
/X3/cmd_vel@geometry_msgs/msg/Twist@ignition.msgs.Twist \
/clock@rosgraph_msgs/msg/Clock@ignition.msgs.Clock \
/world/quadcopter_teleop/clock@rosgraph_msgs/msg/Clock@ignition.msgs.Clock \
/world/quadcopter_teleop/pose/info@tf2_msgs/msg/TFMessage@ignition.msgs.Pose_V
```
5. `Interact` with the `simulation` using `ROS 2 MCP`.
Ask the `Agent` to perform an action — the `MCP` will execute it in the simulation.
For example: “Fly the drone up by one meter. Using ROS2 MCP”