How to make slippery/smooth movement in Unity 2D?

Questions & Answers
1

Hi, I would like to make a slippery 2D movement for my game i’m trying to make. I’ve got the movement for my player character, how do I make it slippery?

Here is my movement code.

private const float MOVE_SPEED = 15f;


private Rigidbody2D rigidbody2d;
private Vector3 moveDir;

private void Awake()
{
    rigidbody2d = GetComponent<Rigidbody2D>();
}

private void Update()
{
    // Basic Movement for the player

    float moveX = 0f;
    float moveY = 0f;

    if (Input.GetKey(KeyCode.W))
    {
        moveY = +1f;    
    }
    if (Input.GetKey(KeyCode.S))
    {
        moveY = -1f;
    }
    if (Input.GetKey(KeyCode.A))
    {
        moveX = -1f;
    }
    if (Input.GetKey(KeyCode.D))
    {
        moveX = +1f;
    }

    moveDir = new Vector3(moveX, moveY).normalized;
}

private void FixedUpdate()
{
    rigidbody2d.velocity = moveDir * MOVE_SPEED;
}

}

2

Hi! Try to use SmoothDamp (Unity - Scripting API: Vector3.SmoothDamp) with the smoothTime at a high value.

For example:

float smoothTime = .1f;
float velocitySmoothing;

 private void FixedUpdate()
 {
     targetVelocity = moveDir * MOVE_SPEED;
     rigidbody2d.velocity = Time.deltaTime * Mathf.SmoothDamp(velocity, targetVelocity, ref velocitySmoothing, smoothTime);
 }
3

Hi agian, this script works thank you so much @guubebra!

But how do you get that targetVelocity?

Cheers!

4

you can make it really slippery by just adding force to the rigidbody

// For moving right, simplified version though, add whatever you please
rigidbody2d.AddForce(Vector2.right);