Having Issues with getting values from a list.

Hey guys,

So what I have is two scripts UIManager and QuestManager. The QuestManager instantiates a total of 26 quests in the list quests. Now my theory is once a quest is finished it is added to the finishedQuests list. Thus the quest that is always at index 0 in the quest list should always be the next quest (as they are chronologically listed). Thus, I want to display the quest name and description in a text field for index 0 always. However I keep on getting this error once the first quest enters QuestState.Finished:

The Error:


The Line I Get The Error:

Code (CSharp):

1.  
2.     public void UpdateUIInformation()
3.     {
4.         questName.text = questManager.quests[0].questName.ToString();
5.         questDesc.text = questManager.quests[0].questDescription.ToString();
6.     }
7.  

This error even persists when I change the index to any number other than 0, but how is this the case when I have 26 elements in the list?

Any help is very much appreciated!

UIManager

Code (CSharp):

1. public class UIManager : MonoBehaviour
2. {
3.  
4.     public Text questName;
5.     public Text questDesc;
6.     public Text totalGoldStars;
7.  
8.     public QuestManager questManager;
9.  
10.     private void Start()
11.     {
12.         SetupUIInformation();
13.  
14.         //CalculateTotalGoldStars();
15.     }
16.  
17.     private void Update()
18.     {
19.  
20.     }
21.    
22.     // Setup the value of the current quest name and description on game start Start().
23.     private void SetupUIInformation()
24.     {
25.         questName.text = questManager.quests[0].questName.ToString();
26.         questDesc.text = questManager.quests[0].questDescription.ToString();
27.     }
28.  
29.     // Update the value of the current quest name and description during gameplay Update().
30.     public void UpdateUIInformation()
31.     {
32.         questName.text = questManager.quests[2].questName.ToString();
33.         questDesc.text = questManager.quests[2].questDescription.ToString();
34.     }

QuestManager

Code (CSharp):

1.  public List<Quest> quests = new List<Quest>();
2.     public List<Quest> finishedQuests = new List<Quest>();
3.  
4.     public UIManager uiManager;
5.  
6.     private void Start()
7.     {
8.         // Check to see if no quests exist in the list before instantiating a list of quests.
9.         if (quests.Count == 0)
10.         {
11.             InstantiateQuests(); // Create a bunch of quest constructs.
12.         }
13.         else
14.         {
15.             return;
16.         }
17.     }
18.  
19.     private void Update()
20.     {
21.         CheckCurrentQuestStatus();
22.     }
23.  
24.     // Check if the current quest is complete.
25.     public void CheckCurrentQuestStatus()
26.     {
27.         if(quests[0].questState == QuestState.Finished && !finishedQuests.Contains(quests[0])) // Check to see if the current quest is finished and is not already contained in the finished quests list.
28.         {
29.             finishedQuests.Add(quests[0]); // Add the finished quest to the finished quest list.
30.  
31.             if(quests.Contains(quests[0])) // Check to see if the current finished quest is contained in the quests list.
32.             {
33.                 quests.Remove(quests[0]); // Remove the finished quest from the quest list.
34.             }
35.             uiManager.UpdateUIInformation();
36.         }
37.         else
38.         {
39.             return;
40.         }
41.     }

 

Really silly mistake, nevermind.

I Didn't reference the UI script in the inspector