transform.forward and trasnform.Rotate() out of sync (C#)

Unity Engine
1

Trying to make a top down game. left and right rotate the object and up and down move it forward and backward. I’m getting ver unexpected behavior with the code below

using UnityEngine;
using System.Collections;

public class TopDown_Movement : MonoBehaviour {
        public float moveSpeed = 15f;
        public float rotSpeed = 15f;

	void Update () {
                float x = Input.GetAxis("Horizontal") * Time.deltaTime * rotSpeed;
                float y = Input.GetAxis("Vertical") * Time.deltaTime * moveSpeed;

                transform.Rotate(0, x, 0);
                transform.Translate(transform.forward * y);
	}
}

If the object is facing north: it goes north.
If the object is facing east: it goes south
If the object is facing south: it goes north
If the object is facing northeast: it goes east.

Essentially, the visible rotation is exactly double the angle that corresponds to transform.forward. Any idea why this might be?

P.S. What is delta time in units of? Seconds?

2

replace transform.forward with Vector3.forward

deltaTime in seconds

3

Thanks times 2 James! It makes sense now that I think about it. do rigidbody.AddForce() and addTorque() work relative to the object’s coordinate space too? or will those forces be applied relative to the global coordinate space?

4

No, there is a AddRelativeForce and AddRelativeTorque for rigidbodies local space forces.