1

If my character is standing still and is hit by a falling object it starts sliding. Why is this happening and how can I stop it. This is my player movement script:

public void Update()
    {
        //move left
        if (Input.GetKeyDown(KeyCode.LeftArrow))
        {
            transform.localScale = new Vector2(1, 1f);

        }
        if (Input.GetKey(KeyCode.LeftArrow))
        {
            if (xPos > -7)
            {
                anim.SetBool("IsMoving", true);
                transform.position += Vector3.left * Time.deltaTime * moveSpeed;
                xPos = transform.position.x;
            }
            else
            {
                anim.SetBool("IsMoving", false);
            }
        }
        if (Input.GetKeyUp(KeyCode.LeftArrow))
        {
            anim.SetBool("IsMoving", false);
        }

        //move right
        if (Input.GetKeyDown(KeyCode.RightArrow))
        {
            transform.localScale = new Vector2(-1, 1f);
        }
        if (Input.GetKey(KeyCode.RightArrow))
        {
            if (xPos < 3)
            {
                anim.SetBool("IsMoving", true);
                transform.position += Vector3.right * Time.deltaTime * moveSpeed;
                xPos = transform.position.x;
            }
            else
            {
                anim.SetBool("IsMoving", false);
            }
        }
        if (Input.GetKeyUp(KeyCode.RightArrow))
        {
            anim.SetBool("IsMoving", false);
        }

    }
2

If you using Rigidbody or Rigidbody2D trying locking it Constraints Freeze Rotation checkbox.