How can i change the bouncinnes on a PhysicMaterial2D in runtime?

Hi dear, To change the bounciness of a PhysicMaterial2D in Unity, you can use the bounciness property of the material. Here's an example script that changes the bounciness of a material:

 using UnityEngine;
 
 public class ChangeBounciness : MonoBehaviour
 {
     public PhysicMaterial2D materialWithBounciness1;
     public float newBounciness;
 
     void OnCollisionEnter2D(Collision2D collision)
     {
         // Check if the collision involves the object this script is attached to
         if (collision.gameObject == gameObject)
         {
             // Get the current material of the collider that was hit
             Collider2D collider = collision.collider;
             PhysicMaterial2D currentMaterial = collider.sharedMaterial as PhysicMaterial2D;
 
             // Check if the current material has a bounciness property
             if (currentMaterial != null && currentMaterial.bounciness != newBounciness)
             {
                 // Change the bounciness of the material
                 currentMaterial.bounciness = newBounciness;
 
                 // Alternatively, you can swap the material to one with bounciness 1
                 if (newBounciness == 1)
                 {
                     collider.sharedMaterial = materialWithBounciness1;
                 }
             }
         }
     }
 }