UnlockCars.cs

using UnityEngine;
using UnityEngine.UI;

public class UnlockCars : MonoBehaviour
{
    private GameObject GameMaster;
    private float currentHighScore;

    // ****** Bikin references untuk Button2 nya ******
    public Button Button0;
    public Button Button1;
    public Button Button2;
    public Button Button3;
    public Button Button4;
    public Button Button5;
    public Button Button6;

    public Text TextAgarTerbuka;

    // Use this for initialization
    private void Start()
    {
        // ***** Bikin Referesi ke Game Master *****
        // ambil currentHighScore yg terekam di GameMaster.highscore;
        GameMaster = GameObject.Find("GameMaster");
        currentHighScore = GameMaster.GetComponent<GameMaster>().highScore;
        CarUnlock();
    }

    public void CarUnlock()
    {
        // ***** kalau currentHighScore nya dibawah 20, set active button 0 saja. dan kasih kata2 score to unlock 30 *****
        if (currentHighScore < 20)
        {
            Button0.gameObject.SetActive(true);
            TextAgarTerbuka.text = "Score To Unlock: 30";

        }  // ***** kalau currentHighScore nya dibawah atau sama dengan 30 , set active button0 sama button1. dan kasih kata2 score to unlock 40 *****
        else if (currentHighScore <= 30)
        {
            Button0.gameObject.SetActive(true);
            Button1.gameObject.SetActive(true);
            TextAgarTerbuka.text = "Score To Unlock: 40";

        }
        // ***** dan seterusnya *****
        else if (currentHighScore <= 40)
        {
            Button0.gameObject.SetActive(true);
            Button1.gameObject.SetActive(true);
            Button2.gameObject.SetActive(true);
            TextAgarTerbuka.text = "Score To Unlock: 50";

        }
        else if (currentHighScore <= 50)
        {
            Button0.gameObject.SetActive(true);
            Button1.gameObject.SetActive(true);
            Button2.gameObject.SetActive(true);
            Button3.gameObject.SetActive(true);
            TextAgarTerbuka.text = "Score To Unlock: 60";


        }
        else if(currentHighScore <= 60)
        {
            Button0.gameObject.SetActive(true);
            Button1.gameObject.SetActive(true);
            Button2.gameObject.SetActive(true);
            Button3.gameObject.SetActive(true);
            Button4.gameObject.SetActive(true);
            TextAgarTerbuka.text = "Score To Unlock: 70";

        }
        else if (currentHighScore <= 70)
        {
            Button0.gameObject.SetActive(true);
            Button1.gameObject.SetActive(true);
            Button2.gameObject.SetActive(true);
            Button3.gameObject.SetActive(true);
            Button4.gameObject.SetActive(true);
            Button5.gameObject.SetActive(true);
            TextAgarTerbuka.text = "Score To Unlock: 80";

        }
        else if (currentHighScore <= 80)
        {
            Button0.gameObject.SetActive(true);
            Button1.gameObject.SetActive(true);
            Button2.gameObject.SetActive(true);
            Button3.gameObject.SetActive(true);
            Button4.gameObject.SetActive(true);
            Button5.gameObject.SetActive(true);
            Button6.gameObject.SetActive(true);
            TextAgarTerbuka.text = "Score To Unlock: 90";

        }

    }

}