CoinLock.cs

using UnityEngine;
using UnityEngine.UI;

public class CoinLock : MonoBehaviour
{
    private Rigidbody2D rb;
    private float stationaryTime = 0f;
    private bool isMaterialRemoved = false;
    private float velocityThreshold = 20f; // Tune as needed

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

    void Update()
    {
        if (isMaterialRemoved || rb == null)
            return;

        if (rb.velocity.magnitude < velocityThreshold)
        {
            stationaryTime += Time.deltaTime;
            if (stationaryTime >= 0.5f)
            {
                rb.sharedMaterial = null; // Remove the "Bounce" Physics Material
                rb.bodyType = RigidbodyType2D.Static;
                isMaterialRemoved = true;
            }
        }
        else
        {
            stationaryTime = 0f; // Reset if moving
        }
    }
}