make me a spacecraft in csharp

Here's a simple example of how to create a spacecraft in C# using Unity game engine:

main.cs
using UnityEngine;

public class Spacecraft : MonoBehaviour
{
    public float speed = 10.0f;
    public float rotationSpeed = 100.0f;

    private Rigidbody2D rb;

    void Start()
    {
        rb = GetComponent<Rigidbody2D>();
    }

    void Update()
    {
        float moveVertical = Input.GetAxis("Vertical");
        float moveHorizontal = Input.GetAxis("Horizontal");

        // Move Forward and Backward
        rb.AddRelativeForce(new Vector2(0f, moveVertical * speed));

        // Rotate Left and Right
        rb.AddTorque(-moveHorizontal * rotationSpeed * Time.deltaTime);
    }
}
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In this example, we attach this script to the spacecraft GameObject in Unity.

We have two public variables, speed and rotationSpeed, which are used to control the movement and rotation of the spacecraft.

We get the Rigidbody2D component in the Start() method, so we can add forces to the spacecraft in the Update() method.

Inside Update(), we retrieve the user input from Input.GetAxis(), which returns a float value between -1 and 1.

We use AddRelativeForce to add a force to move the spacecraft forward/backward, and AddTorque to rotate the spacecraft to the left/right.

This is a simple example that you can build upon to create more complex spacecraft behaviors with physics and graphics in Unity.