Rotate with mouse position

Peanut_Butter_Jelly · May 7, 2019, 11:24am

Hello, was wondering if anyone had any insight on how to rotate the ship relative to the pointers position? I have found Transform.LookAt() but cant figure out how to implement it without breaking everything. I’ve reversed all the rotating code back to its default.

    public void respondToRotateInput()
    {
        
        float rotationSpeed = rcsThrust * Time.deltaTime;

        if (Input.GetKey(KeyCode.A))
        {
            rigidBody.freezeRotation = true;
            transform.Rotate(Vector3.forward * rotationSpeed);
            rigidBody.freezeRotation = false;
        }

        else if (Input.GetKey(KeyCode.D))
        {
            rigidBody.freezeRotation = true;
            transform.Rotate(-Vector3.forward * rotationSpeed);
            rigidBody.freezeRotation = false;
        }
    }

Nina · May 7, 2019, 11:56am

Hi,

What exactly is your idea? What do you mean by “pointers position”?

Peanut_Butter_Jelly · May 7, 2019, 1:13pm

I’m trying to get the Y pivot of the rocket to aim at the mouse cursor. So that where ever the cursor is the object will rotate on the left or right Axis.

Nina · May 8, 2019, 4:36am

You could try the following:

Convert the mouse position to a World Space coordinate. You can do that with Camera.ScreenToWorldPoint.

Then you could use the Transform.LookAt method. The z-position of the converted mouse position is probably 0. Set the z-position of the returned Vector3 to the z-position of your rocket. Pass that Vector3 on to the LookAt method.