[Part 8] How to let each health and mana orbs call once only in the game

[Elvin Sim]

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[Joseph Tang]

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To be sure, is anything setting, such as your pickup’s scripts [Not the pickupmanager.cs, but the incerase heart shard/ mana orb scripts] calling the GameManager’s TriggerPickupInteract() as per point [2] of the previous post?

[Elvin Sim]

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<code>public class IncreaseMaxHealth : MonoBehaviour
{
    [SerializeField] GameObject particles;
    [SerializeField] GameObject canvasUI;

    [SerializeField] HeartShards heartShards;

    bool used;

    // Start is called before the first frame update
    void Start()
    {
        if (PlayerController.Instance.maxHealth >= PlayerController.Instance.maxTotalHealth)
        {
            Destroy(gameObject);
        }
    }

    private void OnTriggerEnter2D(Collider2D _collision)
    {
        if (_collision.CompareTag("Player") && !used)
        {
            used = true;
            StartCoroutine(ShowUI());
        }
    }

    IEnumerator ShowUI()
    {
        GameObject _particles = Instantiate(particles, transform.position, Quaternion.identity);
        Destroy(_particles, 0.5f);
        yield return new WaitForSeconds(0.5f);

        canvasUI.SetActive(true);
        heartShards.initialFillAmount = PlayerController.Instance.heartShards * 0.25f;
        PlayerController.Instance.heartShards++;
        heartShards.targetFillAmount = PlayerController.Instance.heartShards * 0.25f;

        StartCoroutine(heartShards.LerpFill());

        yield return new WaitForSeconds(2.5f);
        SaveData.Instance.SavePlayerData();
        canvasUI.SetActive(false);
        Destroy(gameObject);
    }
}</code>

[Elvin Sim]

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I think no

[Joseph Tang]

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public class IncreaseMaxHealth : MonoBehaviour
{
    ...

    private void OnTriggerEnter2D(Collider2D _collision)
    {
        if (_collision.CompareTag("Player") && !used)
        {
            GameManager.Instance.TriggerPickupInteract(gameObject.name)
            used = true;
            StartCoroutine(ShowUI());
        }
    }

    ...
}

[Elvin Sim]

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[Elvin Sim]

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Translate to another scene and come back is ok, but when I exit the game and load again it doesn’t work

[Joseph Tang]

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Likely because nothing is calling LoadAndDeactivateInteractedObjects() at the beginning of a scene except for the PickupManager.cs script on start or if you are entering the scene with the PlayerController.cs.

This should be solved by adding a destroy in main menu script onto the PickUpManager game object, like the ones you have on your player, canvas and game manager prefabs.

[Elvin Sim]

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still same

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[Elvin Sim]

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<code>public struct SaveData
{
    public static SaveData Instance;

    //map stuff
    public HashSet<string> sceneNames;

    //bench stuff
    public string benchSceneName;
    public Vector2 benchPos;

    //player stuff
    public int playerHealth;
    public int playerMaxHealth;
    public int playerHeartShards;
    public float playerMana;
    public int playerManaOrbs;
    public int playerOrbShard;
    public float playerOrb0fill, playerOrb1fill, playerOrb2fill;
    public bool playerHalfMana;
    public Vector2 playerPosition;
    public string lastScene;

    public bool playerUnlockedWallJump, playerUnlockedDash, playerUnlockedVarJump;
    public bool playerUnlockedSideCast, playerUnlockedUpCast, playerUnlockedDownCast;

    //enemies stuff
    //shade
    public Vector2 shadePos;
    public string sceneWithShade;
    public Quaternion shadeRot;

    //The Hollow Knight
    public bool THKDefeated;

    // Pickups and Chests data
    public HashSet<string> collectedPickups; // HashSet to store collected pickups

    public void Initialize()
    {
        if(!File.Exists(Application.persistentDataPath + "/save.scenes.data"))
        {
            using (BinaryWriter writer = new BinaryWriter(File.Create(Application.persistentDataPath + "/save.scenes.data")))
            {
                writer.Write(0); // Write an empty scene data structure
            }
        }

        // Load existing data
        LoadSceneData();

        if (!File.Exists(Application.persistentDataPath + "/save.bench.data")) 
        {
            BinaryWriter writer = new BinaryWriter(File.Create(Application.persistentDataPath + "/save.bench.data"));
        }

        if (!File.Exists(Application.persistentDataPath + "/save.player.data"))
        {
            BinaryWriter writer = new BinaryWriter(File.Create(Application.persistentDataPath + "/save.player.data"));
        }

        if (!File.Exists(Application.persistentDataPath + "/save.shade.data"))
        {
            BinaryWriter writer = new BinaryWriter(File.Create(Application.persistentDataPath + "/save.shade.data"));
        }

        if (!File.Exists(Application.persistentDataPath + "/save.boss.data"))
        {
            BinaryWriter writer = new BinaryWriter(File.Create(Application.persistentDataPath + "/save.boss.data"));
        }

        if (!File.Exists(Application.persistentDataPath + "/save.pickups.data"))
        {
            BinaryWriter writer = new BinaryWriter(File.Create(Application.persistentDataPath + "/save.pickups.data"));
        }

        if (sceneNames == null)
        {
            sceneNames = new HashSet<string>();
        }

        if (collectedPickups == null)
        {
            collectedPickups = new HashSet<string>();
        }
    }

    #region Scenes Stuff
    public void SaveSceneData()
    {
        using (BinaryWriter writer = new BinaryWriter(File.OpenWrite(Application.persistentDataPath + "/save.scenes.data")))
        {
            writer.Write(sceneNames.Count);
            foreach (string sceneName in sceneNames)
            {
                writer.Write(sceneName);
            }
        }
    }

    public void LoadSceneData()
    {
        if (File.Exists(Application.persistentDataPath + "/save.scenes.data"))
        {
            using (BinaryReader reader = new BinaryReader(File.OpenRead(Application.persistentDataPath + "/save.scenes.data")))
            {
                int sceneCount = reader.ReadInt32();
                sceneNames = new HashSet<string>();
                for (int i = 0; i < sceneCount; i++)
                {
                    string sceneName = reader.ReadString();
                    sceneNames.Add(sceneName);
                }
            }
        }
        else
        {
            sceneNames = new HashSet<string>();
        }
    }
    #endregion

    #region Delete save data
    public void DeleteScenesData()
    {
        string path = Application.persistentDataPath + "/save.scenes.data";
        if (File.Exists(path))
        {
            File.Delete(path);
            Debug.Log("Scenes data deleted.");
        }
    }

    public void DeleteBenchData()
    {
        string path = Application.persistentDataPath + "/save.bench.data";
        if (File.Exists(path))
        {
            File.Delete(path);
            Debug.Log("Bench data deleted.");
        }
    }

    public void DeletePlayerData()
    {
        string path = Application.persistentDataPath + "/save.player.data";
        if (File.Exists(path))
        {
            File.Delete(path);
            Debug.Log("Player save data deleted.");
        }
    }

    public void DeleteShadeData()
    {
        string path = Application.persistentDataPath + "/save.shade.data";
        if (File.Exists(path))
        {
            File.Delete(path);
            Debug.Log("Shade save data deleted.");
        }
    }

    public void DeleteBossData()
    {
        string path = Application.persistentDataPath + "/save.boss.data";
        if (File.Exists(path))
        {
            File.Delete(path);
            Debug.Log("Boss save data deleted.");
        }
    }

    public void DeleteAllSaveData()
    {
        DeleteScenesData();
        DeleteBenchData();
        DeletePlayerData();
        DeleteShadeData();
        DeleteBossData();
    }

    #endregion

    #region Bench Stuff
    public void SaveBench()
    {
        using (BinaryWriter writer = new BinaryWriter(File.OpenWrite(Application.persistentDataPath + "/save.bench.data")))
        {
            writer.Write(benchSceneName);
            writer.Write(benchPos.x);
            writer.Write(benchPos.y);
        }
    }

    public void LoadBench()
    {
        string savePath = Application.persistentDataPath + "/save.bench.data";
        if (File.Exists(savePath) && new FileInfo(savePath).Length > 0)
        {
            using(BinaryReader reader = new BinaryReader(File.OpenRead(Application.persistentDataPath + "/save.bench.data")))
            {
                benchSceneName = reader.ReadString();
                benchPos.x = reader.ReadSingle();
                benchPos.y = reader.ReadSingle();
            }
        }
        else
        {
            Debug.Log("Bench doesn't exist");
        }
    }
    #endregion

    #region Player Stuff
    public void SavePlayerData()
    {
        using (BinaryWriter writer = new BinaryWriter(File.OpenWrite(Application.persistentDataPath + "/save.player.data")))
        {
            playerHealth = PlayerController.Instance.Health;
            writer.Write(playerHealth);
            playerMaxHealth = PlayerController.Instance.maxHealth;
            writer.Write(playerMaxHealth);
            playerHeartShards = PlayerController.Instance.heartShards;
            writer.Write(playerHeartShards);

            playerMana = PlayerController.Instance.Mana;
            writer.Write(playerMana);
            playerHalfMana = PlayerController.Instance.halfMana;
            writer.Write(playerHalfMana);
            playerManaOrbs = PlayerController.Instance.manaOrbs;
            writer.Write(playerManaOrbs);
            playerOrbShard = PlayerController.Instance.orbShard;
            writer.Write(playerOrbShard);
            playerOrb0fill = PlayerController.Instance.manaOrbsHandler.orbFills[0].fillAmount;
            writer.Write(playerOrb0fill);
            playerOrb1fill = PlayerController.Instance.manaOrbsHandler.orbFills[1].fillAmount;
            writer.Write(playerOrb1fill);
            playerOrb2fill = PlayerController.Instance.manaOrbsHandler.orbFills[2].fillAmount;
            writer.Write(playerOrb2fill);

            playerUnlockedWallJump = PlayerController.Instance.unlockedWallJump;
            writer.Write(playerUnlockedWallJump);
            playerUnlockedDash = PlayerController.Instance.unlockedDash;
            writer.Write(playerUnlockedDash);
            playerUnlockedVarJump = PlayerController.Instance.unlockedVarJump;
            writer.Write(playerUnlockedVarJump);

            playerUnlockedSideCast = PlayerController.Instance.unlockedSideCast;
            writer.Write(playerUnlockedSideCast);
            playerUnlockedUpCast = PlayerController.Instance.unlockedUpCast;
            writer.Write(playerUnlockedUpCast);
            playerUnlockedDownCast = PlayerController.Instance.unlockedDownCast;
            writer.Write(playerUnlockedDownCast);


            playerPosition = PlayerController.Instance.transform.position;
            writer.Write(playerPosition.x);
            writer.Write(playerPosition.y);

            lastScene = SceneManager.GetActiveScene().name;
            writer.Write(lastScene);

        }
        Debug.Log("saved player data");
    }

    public void LoadPlayerData()
    {
        string savePath = Application.persistentDataPath + "/save.player.data";
        if (File.Exists(savePath) && new FileInfo(savePath).Length > 0)
        {
            using(BinaryReader reader = new BinaryReader(File.OpenRead(Application.persistentDataPath + "/save.player.data")))
            {
                playerHealth = reader.ReadInt32();
                playerMaxHealth = reader.ReadInt32();
                playerHeartShards = reader.ReadInt32();
                playerMana = reader.ReadSingle();
                playerHalfMana = reader.ReadBoolean();
                playerManaOrbs = reader.ReadInt32();
                playerOrbShard = reader.ReadInt32();
                playerOrb0fill = reader.ReadSingle();
                playerOrb1fill = reader.ReadSingle();
                playerOrb2fill = reader.ReadSingle();

                playerUnlockedWallJump = reader.ReadBoolean();
                playerUnlockedDash= reader.ReadBoolean();
                playerUnlockedVarJump= reader.ReadBoolean();

                playerUnlockedSideCast= reader.ReadBoolean();
                playerUnlockedUpCast = reader.ReadBoolean();
                playerUnlockedDownCast = reader.ReadBoolean();

                playerPosition.x = reader.ReadSingle();
                playerPosition.y = reader.ReadSingle();

                lastScene = reader.ReadString();

                SceneManager.LoadScene(lastScene);
                PlayerController.Instance.transform.position = playerPosition;
                PlayerController.Instance.halfMana = playerHalfMana;
                PlayerController.Instance.Health = playerHealth;
                PlayerController.Instance.maxHealth = playerMaxHealth;
                PlayerController.Instance.heartShards = playerHeartShards;
                PlayerController.Instance.Mana = playerMana;
                PlayerController.Instance.manaOrbs = playerManaOrbs;
                PlayerController.Instance.orbShard = playerOrbShard;
                PlayerController.Instance.manaOrbsHandler.orbFills[0].fillAmount = playerOrb0fill;
                PlayerController.Instance.manaOrbsHandler.orbFills[1].fillAmount = playerOrb1fill;
                PlayerController.Instance.manaOrbsHandler.orbFills[2].fillAmount = playerOrb2fill;

                PlayerController.Instance.unlockedWallJump = playerUnlockedWallJump;
                PlayerController.Instance.unlockedDash = playerUnlockedDash;
                PlayerController.Instance.unlockedVarJump = playerUnlockedVarJump;

                PlayerController.Instance.unlockedSideCast = playerUnlockedSideCast;
                PlayerController.Instance.unlockedUpCast = playerUnlockedUpCast;
                PlayerController.Instance.unlockedDownCast = playerUnlockedDownCast;

            }
            Debug.Log("load player data");
            Debug.Log(playerHalfMana);
        }
        else
        {
            Debug.Log("File doesn't exist");
            PlayerController.Instance.halfMana = false;
            PlayerController.Instance.Health = PlayerController.Instance.maxHealth;
            PlayerController.Instance.Mana = 0.5f;
            PlayerController.Instance.heartShards = 0;

            PlayerController.Instance.unlockedWallJump = false;
            PlayerController.Instance.unlockedDash = false;
            PlayerController.Instance.unlockedVarJump = false;

            PlayerController.Instance.unlockedSideCast = false;
            PlayerController.Instance.unlockedUpCast = false;
            PlayerController.Instance.unlockedDownCast = false;

        }
    }
    #endregion

    #region Shade Stuff
    public void SaveShadeData()
    {
        using(BinaryWriter writer = new BinaryWriter(File.OpenWrite(Application.persistentDataPath + "/save.shade.data")))
        {
            sceneWithShade = SceneManager.GetActiveScene().name;
            shadePos = Shade.Instance.transform.position;
            shadeRot = Shade.Instance.transform.rotation;

            writer.Write(sceneWithShade);

            writer.Write(shadePos.x);
            writer.Write(shadePos.y);

            writer.Write(shadeRot.x);
            writer.Write(shadeRot.y);
            writer.Write(shadeRot.z);
            writer.Write(shadeRot.w);
        }
    }

    public void LoadShadeData()
    {
        string savePath = Application.persistentDataPath + "/save.shade.data";
        if (File.Exists(savePath) && new FileInfo(savePath).Length > 0)
        {
            using(BinaryReader reader = new BinaryReader(File.OpenRead(Application.persistentDataPath + "/save.shade.data")))
            {
                sceneWithShade = reader.ReadString();
                shadePos.x = reader.ReadSingle();
                shadePos.y = reader.ReadSingle();

                float rotationX = reader.ReadSingle();
                float rotationY = reader.ReadSingle();
                float rotationZ = reader.ReadSingle();
                float rotationW = reader.ReadSingle();
                shadeRot = new Quaternion(rotationX, rotationY, rotationZ, rotationW);
            }
            Debug.Log("Load shade data");
        }
        else
        {
            Debug.Log("Shade doesn't exist");
        }
    }
    #endregion

    #region The Hollow Knight
    public void SaveBossData()
    {
        using (BinaryWriter writer = new BinaryWriter(File.OpenWrite(Application.persistentDataPath + "/save.boss.data")))
        {
            THKDefeated = GameManager.Instance.THKDefeated;

            writer.Write(THKDefeated);
        }
    }

    public void LoadBossData()
    {
        string savePath = Application.persistentDataPath + "/save.boss.data";
        if (File.Exists(savePath) && new FileInfo(savePath).Length > 0)
        {
            using (BinaryReader reader = new BinaryReader(File.OpenRead(Application.persistentDataPath + "/save.boss.data")))
            {
                THKDefeated = reader.ReadBoolean();

                GameManager.Instance.THKDefeated = THKDefeated;
            }
        }
        else
        {
            Debug.Log("Boss doesnt exist");
        }
    }
    #endregion


    #region Orbs Save Data
    public void AddCollectedPickup(string pickupID)
    {
        // Add pickup ID to collected pickups
        collectedPickups.Add(pickupID);
        SavePickups();
    }

    public void SavePickups()
    {
        using (BinaryWriter writer = new BinaryWriter(File.OpenWrite(Application.persistentDataPath + "/save.pickups.data")))
        {
            // Save collected pickups
            writer.Write(collectedPickups.Count);
            foreach (string pickupID in collectedPickups)
            {
                writer.Write(pickupID);
            }
        }
    }

    public void LoadPickups()
    {
        string savePath = Application.persistentDataPath + "/save.pickups.data";
        if (File.Exists(savePath) && new FileInfo(savePath).Length > 0)
        {
            using (BinaryReader reader = new BinaryReader(File.OpenRead(Application.persistentDataPath + "/save.pickups.data")))
            {
                // Load collected pickups
                int numCollectedPickups = reader.ReadInt32();
                for (int i = 0; i < numCollectedPickups; i++)
                {
                    collectedPickups.Add(reader.ReadString());
                }
            }
        }
    }
    #endregion</code>

[Elvin Sim]

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And I think is the loadPickup doesn’t mention? you can see it is zero reference

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[Elvin Sim]

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Sorry for bother, but if you can help me ASAP I am very appreciate, not rushing you guys, just because I need to pass up my assignment after a few days, so I am little rushing

[Elvin Sim]

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<code>public class PickupManager : MonoBehaviour
{
    public static PickupManager Instance;

    private void Awake()
    {
        if(Instance != null && Instance != this)
        {
            Destroy(gameObject);
        }
        else
        {
            Instance = this;
        }

        DontDestroyOnLoad(gameObject);
    }

    // Start is called before the first frame update
    void Start()
    {
        LoadAndDeactivateInteractedObjects(); // Load saved data and deactivate pickups
    }

    public void LoadAndDeactivateInteractedObjects()
    {
        HashSet<string> collectedPickups = SaveData.Instance.collectedPickups;
        print("Called");

        // Deactivate pickups that have been collected
        foreach (GameObject pickup in GameObject.FindGameObjectsWithTag("Pickup"))
        {
            string pickupID = pickup.name; // Assuming the name of the object is its ID

            print(pickupID);

            if (collectedPickups.Contains(pickupID))
            {
                print("found");
                pickup.SetActive(false); // Deactivate the pickup
                print("deactivated");
            }
        }
    }
}</code>

[Elvin Sim]

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<code>public class GameManager : MonoBehaviour
{
    public string transitionedFromScene;

    public Vector2 platformingRespawnPoint;
    public Vector2 respawnPoint;
    [SerializeField] Bench bench;

    public GameObject shade;

    public bool THKDefeated = false;

    [SerializeField] private FadeUI pauseMenu;
    [SerializeField] private float fadeTime;
    public bool gameIsPaused;

    public static GameManager Instance {  get; private set; }
    private void Awake()
    {
        SaveData.Instance.Initialize();
        if(Instance != null && Instance != this)
        {
            Destroy(gameObject);
        }
        else
        {
            Instance = this;
        }

        if(PlayerController.Instance != null)
        {
            if (PlayerController.Instance.halfMana)
            {
                SaveData.Instance.LoadShadeData();
                if(SaveData.Instance.sceneWithShade == SceneManager.GetActiveScene().name || SaveData.Instance.sceneWithShade == "")
                {
                    Instantiate(shade, SaveData.Instance.shadePos, SaveData.Instance.shadeRot);
                }
            }
        }

        SaveScene();
        DontDestroyOnLoad(gameObject);
        bench = FindObjectOfType<Bench>();

        SaveData.Instance.LoadBossData();

    }

    public void ResetData()
    {
        SaveData.Instance.DeleteAllSaveData();
    }

    private void Update()
    {
        if(Input.GetKeyDown(KeyCode.Escape) && !gameIsPaused)
        {
            pauseMenu.FadeUIIn(fadeTime);
            Time.timeScale = 0;
            gameIsPaused = true;
        }
    }

    public void UnpauseGame()
    {
        Time.timeScale = 1;
        gameIsPaused = false;
    }

    public void SaveScene()
    {
        string currentSceneName = SceneManager.GetActiveScene().name;
        SaveData.Instance.sceneNames.Add(currentSceneName);
        SaveData.Instance.SaveSceneData(); // Save scene names whenever a new scene is added
    }

    public void RespawnPlayer()
    {
        SaveData.Instance.LoadBench();
        if (SaveData.Instance.benchSceneName != null) //load the bench's scene if it exists.
        {
            SceneManager.LoadScene(SaveData.Instance.benchSceneName);
        }

        if(SaveData.Instance.benchPos != null) //set the respawn point to the bench's position.
        {
            respawnPoint = SaveData.Instance.benchPos;
        }
        else
        {
            respawnPoint = platformingRespawnPoint;
        }

        PlayerController.Instance.transform.position = respawnPoint;

        StartCoroutine(UIManager.Instance.DeactivateDeathScreen());
        PlayerController.Instance.Respawned();
    }


    // Method to trigger pickup interaction event
    public void TriggerPickupInteract(string pickupID)
    {
        SaveData.Instance.AddCollectedPickup(pickupID); // Add pickup to SaveData
    }
}
</code>

[Elvin Sim]

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I try and try other way again and again but still cannot works

[Author]

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