anti cheat indicator

using UnityEngine;

public class APKIntegrityChecker : MonoBehaviour
{
    string expectedSignature = "your_apk_signature_here"; // Replace with your actual APK signature

    void Start()
    {
        if (!CheckAPKSignature())
        {
            Debug.LogError("APK integrity check failed. Exiting game.");
            Application.Quit();
        }
        else
        {
            Debug.Log("APK integrity verified.");
        }
    }

    bool CheckAPKSignature()
    {
        try
        {
            using (AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
            {
                AndroidJavaObject currentActivity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
                AndroidJavaObject packageManager = currentActivity.Call<AndroidJavaObject>("getPackageManager");
                AndroidJavaObject packageInfo = packageManager.Call<AndroidJavaObject>("getPackageInfo", currentActivity.Call<string>("getPackageName"), 64); // PackageManager.GET_SIGNATURES = 64

                AndroidJavaObject[] signatures = packageInfo.Get<AndroidJavaObject[]>("signatures");
                string apkSignature = signatures[0].Call<string>("toCharsString");

                return apkSignature == expectedSignature;
            }
        }
        catch (System.Exception e)
        {
            Debug.LogError("Error checking APK signature: " + e.Message);
            return false;
        }
    }
}