Move an object forward and not up?

Question

I need to move an object in the direction its looking but only on the X and Z axis not the Y. I am currently using:

 float h = (Input.GetAxis("Horizontal") / moveScale) * sprinting;
         float v = (Input.GetAxis("Vertical") / moveScale) * sprinting;

         gameObject.transform.localPosition += transform.right * h;
         gameObject.transform.localPosition += transform.forward * v;

And it works ok, but if my rotation is facing upwards i move up and i dont want that to happen, i just want to move horizontal.

Answer 1

Answer by HammerCar · Jun 20, 2015 at 06:50 PM

I think you can just do this:

 float h = (Input.GetAxis("Horizontal") / moveScale) * sprinting;
 float v = (Input.GetAxis("Vertical") / moveScale) * sprinting;
  
 gameObject.transform.localPosition += transform.right * h * new Vector3 (1, 0, 1);
 gameObject.transform.localPosition += transform.forward * v * new Vector3 (1, 0, 1);

Here I have multiplied the y value with 0 so it is always 0. Everything else should be normal.

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Move an object forward and not up?

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