[SOLVED] Moving Rigidbody based on orientation

Unity Engine
1

Hi,
I am making a space(ish) game that uses FPS type controls instead of normal spaceship controls (to see if it is any good). And I’m using the rigidbody.MovePosition() which is al working exactly how I want it but it is moving the rigid body relative to world space. I have looked up google for this issue and they are all saying that I need to use transform.forward. Fair enough. However I have tried to put it in just about all the position of my code and when I run it the ship goes forward relative to it (yay) regardless of any input (boo). The only way I can see this working is if I break up the forward, right, and up directions into seperate functions or seperate line instead of what I already have which is nice and concise. My question is: Is there any way for me to use the transform.forward without having to rewrite the move function with less elegant code?

Below is the code I have - This is the entire script that goes onto the object with the rigidbody:

using UnityEngine;

public class ShipController : MonoBehaviour
{
    private Rigidbody rb;
   
    public float moveSpeed;
    public float rotateSpeed;

    // Start is called before the first frame update
    void Awake()
    {
        rb = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        Turn();
        Move();
    }

    private void Move()
    {
        float thrust = Input.GetAxis("Thrust");
        float strafe = Input.GetAxis("Strafe");
        float elevate = Input.GetAxis("Elevation");

        Vector3 tempVector = new Vector3(strafe, elevate, thrust);
        tempVector = tempVector.normalized * moveSpeed * Time.fixedDeltaTime;
        rb.MovePosition(transform.position + tempVector);
    }

    private void Turn()
    {
        float pitch = Input.GetAxis("Mouse Y");
        float yaw = Input.GetAxis("Mouse X");
        float roll = Input.GetAxis("Roll");

        Vector3 tempVector = new Vector3(-pitch, yaw, roll);
        Quaternion tempRotation = Quaternion.Euler(tempVector * rotateSpeed * Time.fixedDeltaTime);
        rb.MoveRotation(rb.rotation * tempRotation);
    }
}

Thank you so much!
-Scobbo

2

Ok, I knew this would happen.
As soon as I posted I figured it out. Here is the code that ended up working (with Comments!):

using UnityEngine;

public class ShipController : MonoBehaviour
{
    private Rigidbody rb;
   
    public float moveSpeed;
    public float rotateSpeed;

    // Start is called before the first frame update
    void Awake()
    {
        rb = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        Turn();
        Move();
    }

    private void Move()
    {
        // Get Inputs
        float thrust = Input.GetAxis("Thrust");
        float strafe = Input.GetAxis("Strafe");
        float elevate = Input.GetAxis("Elevation");

        // Multiply each direction by the input (-1, 0, or 1)
        Vector3 forwardVector = transform.forward * thrust;
        Vector3 rightVector = transform.right * strafe;
        Vector3 upVector = transform.up * elevate;

        // Add the directional vectors together
        Vector3 tempVector = forwardVector + rightVector + upVector;

        // Normalise (so diagonal movement isn't faster than straight) multiply by the movement speed and make it frame rate independant.
        tempVector = tempVector.normalized * moveSpeed * Time.fixedDeltaTime;

        //Move the player
        rb.MovePosition(transform.position + tempVector);
    }

    private void Turn()
    {
        // Get the Input
        float pitch = Input.GetAxis("Mouse Y");
        float yaw = Input.GetAxis("Mouse X");
        float roll = Input.GetAxis("Roll");

        // Make a vector3 out of the input
        Vector3 tempVector = new Vector3(-pitch, yaw, roll);

        // Convert to a quaternion and multiply by the rotation speed and make it frame rate independant.
        Quaternion tempRotation = Quaternion.Euler(tempVector * rotateSpeed * Time.fixedDeltaTime);

        //turn the player
        rb.MoveRotation(rb.rotation * tempRotation);
    }
}