2D Top down physics with ground (slippery floor...)

Hello I'm quite new to the Unity engine, and I'm currently working on a 2D top down game. I'm using Tilemaps to draw my levels, but I have a question. I'd like to create a slippery effect on some places of the map (like an ice floor). I've found a way, but I'm wondering if there are better solutions to achieve this goal.

I'm currently doing the following:

• Created a new Tilemap on top of my default ground to draw my Ice patches on

• Added a Tilemap Collider2D to that Tilemap and made it a trigger

• When I enter the trigger, I update the movement of my player

• I'll add my code below

  using System.Collections; using System.Collections.Generic; using UnityEngine;

  public class MovementController : MonoBehaviour {

     [SerializeField]
       private float topSpeed = 2.0f;
   
       private bool facingRight = true;
       private bool facingDown = true;
       private bool onIce = false;
   
       private Rigidbody2D rbody;
       private Animator animator;
   
       void Start() {
           rbody = GetComponent<Rigidbody2D>();
           animator = GetComponent<Animator>();
           Physics2D.gravity = Vector2.zero;
           Debug.Log("Initialized Player");
       }
   
       void Update() {
           
       }
   
       void FixedUpdate() {
           updateMovement();
           updateAnimator();
           if (onIce && stoppedMoving()) {
               //print("Player stopped moving");
           }
       }
   
       void updateMovement() {
   
           //Get input
           float moveHorizontal = Input.GetAxis("horizontal");
           float moveVertical = Input.GetAxis("vertical");
   
           //Define wheter moving horizontal and/or vertical
           bool vertical = Mathf.Abs(Input.GetAxisRaw("vertical")) > 0.1f;
           bool horizontal = Mathf.Abs(Input.GetAxisRaw("horizontal")) > 0.1f;
   
           //Update movement
           if (horizontal && vertical)
               //rbody.velocity = new Vector2(moveHorizontal, moveVertical) * topSpeed * 3 / 4;
               rbody.AddForce(new Vector2(moveHorizontal * topSpeed, moveVertical * topSpeed) * 3 / 4);
           else
               rbody.AddForce(new Vector2(moveHorizontal * topSpeed, moveVertical * topSpeed));
           //rbody.velocity = new Vector2(moveHorizontal, moveVertical) * topSpeed;
           
   
           //Flip if needed
           if (moveHorizontal < 0 && facingRight)
               flipHorizontal();
           else if (moveHorizontal > 0 && !facingRight)
               flipHorizontal();
   
           //stop moving when needed too
           if (Mathf.Abs(Input.GetAxisRaw("horizontal")) < 0.1f && !onIce)
               rbody.velocity = new Vector2(0, rbody.velocity.y);
           if (Mathf.Abs(Input.GetAxisRaw("vertical")) < 0.1f && !onIce)
               rbody.velocity = new Vector2(rbody.velocity.x, 0);
   
       }
   
       void updateAnimator() {
   
           bool vertical = Mathf.Abs(Input.GetAxisRaw("vertical")) > 0.1f;
           bool horizontal = Mathf.Abs(Input.GetAxisRaw("horizontal")) > 0.1f;
   
           //Update animator
           //horizontal/vertical
           if (Mathf.Abs(Input.GetAxisRaw("vertical")) > 0.1f && Mathf.Abs(Input.GetAxisRaw("horizontal")) > 0.1f) {
               animator.SetBool("horizontal", true);
               animator.SetBool("vertical", false);
           }
           else {
               animator.SetBool("horizontal", horizontal);
               animator.SetBool("vertical", vertical);
           }
           //up/down
           if (facingDown && Input.GetAxisRaw("vertical") > 0.1f) {
               animator.SetBool("down", false);
               facingDown = false;
           }
           else if (facingDown && Input.GetAxisRaw("vertical") < -0.1f) {
               animator.SetBool("down", true);
               facingDown = true;
           }
           else if (!facingDown && Input.GetAxisRaw("vertical") < -0.1f) {
               animator.SetBool("down", true);
               facingDown = true;
           }
           else if (!facingDown && Input.GetAxisRaw("vertical") > 0.1f) {
               animator.SetBool("down", false);
               facingDown = false;
           }
       }
   
       void flipHorizontal() {
   
           facingRight = !facingRight;
           Vector3 localScale = transform.localScale;
           localScale.x *= -1;
           transform.localScale = localScale;
       }
   
   
       bool stoppedMoving() {
           return Mathf.Abs(rbody.velocity.x) < 0.05f && Mathf.Abs(rbody.velocity.y) < 0.05f;
       }
   
       void OnTriggerEnter2D(Collider2D other) {
           if (other.gameObject.tag == "Icy") {
               print("Entered ice collider");
               onIce = true;
           }
       }
   
       void OnTriggerExit2D(Collider2D other) {
           if (other.gameObject.tag == "Icy") {
               print("Exited ice collider");
               onIce = false;
           }
       }
   }