[Part 10] Upgrade Menu Stays active after choosing upgrade

[Renaud St-Hilaire]

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Hi, I get a nullreferenceException error when choosing an upgrade, the adding weapons/leveling up works but the panel doesnt disappear after choosing. Here’s a screenshot of both the Game manager and the inventory manager and the AddPassive and AddWeapon code. Thanks for the help!

  public void AddWeapon(int slotIndex, WeaponController weapon)   //Add a weapon to a specific slot
  {
      weaponSlots[slotIndex] = weapon;
      weaponLevels[slotIndex] = weapon.weaponData.Level;
      weaponUISlots[slotIndex].enabled = true;   //Enable the image component
      weaponUISlots[slotIndex].sprite = weapon.weaponData.Icon;

      if (GameManager.instance != null && GameManager.instance.choosingUpgrade)
      {
          GameManager.instance.EndLevelUp();
      }
  }

  public void AddPassiveItem(int slotIndex, PassiveItem passiveItem)  //Add a passive item to a specific slot
  {
      passiveItemSlots[slotIndex] = passiveItem;
      passiveItemLevels[slotIndex] = passiveItem.passiveItemData.Level;
      passiveItemUISlots[slotIndex].enabled = true; //Enable the image component
      passiveItemUISlots[slotIndex].sprite = passiveItem.passiveItemData.Icon;

      if (GameManager.instance != null && GameManager.instance.choosingUpgrade)
      {
          GameManager.instance.EndLevelUp();
      }
  }

[Terence]

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Renaud, can you bold the lines 55 and 68 in your code above?

[Renaud St-Hilaire]

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Im not sure what do you mean by bold the lines, you mean make them bold? or like make them unactive with a double slash // ? Im sorry for my english its not my first language.

[Terence]

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Renaud, that’s right, I mean to make them bold. I suspect your issues have to do with the errors that are appearing, but I need to know which lines are being referred to so I can help you fix them.

[Renaud St-Hilaire]

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Ok! Its the two lines that enables the image components.

 public void AddWeapon(int slotIndex, WeaponController weapon)   //Add a weapon to a specific slot
  {
      weaponSlots[slotIndex] = weapon;
      weaponLevels[slotIndex] = weapon.weaponData.Level;
      weaponUISlots[slotIndex].enabled = true;   //Enable the image component
      weaponUISlots[slotIndex].sprite = weapon.weaponData.Icon;

      if (GameManager.instance != null && GameManager.instance.choosingUpgrade)
      {
          GameManager.instance.EndLevelUp();
      }
  }

  public void AddPassiveItem(int slotIndex, PassiveItem passiveItem)  //Add a passive item to a specific slot
  {
      passiveItemSlots[slotIndex] = passiveItem;
      passiveItemLevels[slotIndex] = passiveItem.passiveItemData.Level;
      passiveItemUISlots[slotIndex].enabled = true; //Enable the image component
      passiveItemUISlots[slotIndex].sprite = passiveItem.passiveItemData.Icon;

      if (GameManager.instance != null && GameManager.instance.choosingUpgrade)
      {
          GameManager.instance.EndLevelUp();
      }
  }

[Terence]

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Hi Renaud, it is likely that some of the slots in your InventoryManager are not assigned. Can you double check?

The NullReferenceException is saying that your passiveItemUISlots[slotIndex] and weaponUISlots[slotIndex] variables are null, so you cannot do something like weaponUISlots[slotIndex].enabled, because it evaluates to null.enabled.

[Renaud St-Hilaire]

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Nice its working now, I probably did something that made them unassigned because it was working fine at first. Thank you for the help!

[Author]

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