Basic Movement Problems

Questions & Answers
1

I’m trying to make a cube move side to side, and I already have the forward movement which works fine. When I hit play, the cube goes forward, but it only manages to go side to side 3/10 times. My code is below. I am taking a course by brackeys to get started with unity. If any of you could help me, that would be welcome.

using UnityEngine;

public class PlayerMovement : MonoBehaviour {

public Rigidbody rb;

public float forwardForce = 2000f;
public float sidewaysForce = 500f;

// Start is called before the first frame update

// Update is called once per frame
void FixedUpdate()
{
    rb.AddForce(0, 0, forwardForce * Time.deltaTime);

    if ( Input.GetKey(KeyCode.D) )
    {
        rb.AddForce(sidewaysForce * Time.deltaTime, 0, 0, ForceMode.VelocityChange);
    }
    if (Input.GetKey(KeyCode.A))
    {
        rb.AddForce(-sidewaysForce * Time.deltaTime, 0, 0, ForceMode.VelocityChange );
    }
}

}

2

Good evening,

I don’t quite understand your wish to move the cube “side to side”.

The code seems correct to me. Perhaps you are referring to the difficulty? Try to change “ForceMode.VelocityChange” to “ForceMode.Force”.

This parameter allows the object to be continuously accelerated taking into account its mass, while VelocityChange abruptly changes the speed without taking into account the mass.

See the documentation at Unity - Scripting API: ForceMode