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I made character movement using AddForce. But I don't understand how to get the desired effect. I need that when I release a movement key (for example WASD) the character stops instantly or almost instantly, but when using AddForce it slides for a while after releasing the movement key.

For example

private void FixedUpdate()
{
    moveHorizontal = Input.GetAxis("Horizontal");
    moveVertical = Input.GetAxis("Vertical");

    _direction = new Vector3(moveHorizontal,0, moveVertical);
    _rigidbody.AddForce(_direction * _speed);
}

I don't want to change any Rigidbody or gravity properties, because it might cause other problems and affect other objects in the scene.

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1 Answer 1

Reset to default
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private void FixedUpdate()
{
    float moveHorizontal = Input.GetAxis("Horizontal");
    float moveVertical = Input.GetAxis("Vertical");

    Vector3 _direction = new Vector3(moveHorizontal, 0, moveVertical);

    if (_direction.magnitude > 0.01f)
    {
        _rigidbody.AddForce(_direction.normalized * _speed);
    }
    else
    {
        _rigidbody.velocity = Vector3.zero;
        _rigidbody.angularVelocity = Vector3.zero;
    }
}

This will stop immediately if no input. When you press a key Horizontal or Vertical the value of it will be between [-1, 1] so the Vector3.magnitude obviously > 0.01 and if you're not press anything then you can stop the Rigidbody. It has been 2 years since my last code in Unity. If it wrong please let me know :v

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  • \$\begingroup\$ May I ask why you deleted this answer? It looks reasonable to me, though I'd tweak the check to if (direction.sqrMagnitude > 0f) \$\endgroup\$ Commented Jun 3 at 23:39
  • \$\begingroup\$ Something just through out my mind that it was wrong and I 'm going to install Unity and check again so I was temporarily delete my answer \$\endgroup\$ Commented Jun 4 at 2:23

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