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:
public void UpdateUIInformation()
{
questName.text = questManager.quests[0].questName.ToString();
questDesc.text = questManager.quests[0].questDescription.ToString();
}
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
public class UIManager : MonoBehaviour
{
public Text questName;
public Text questDesc;
public Text totalGoldStars;
public QuestManager questManager;
private void Start()
{
SetupUIInformation();
//CalculateTotalGoldStars();
}
private void Update()
{
}
// Setup the value of the current quest name and description on game start Start().
private void SetupUIInformation()
{
questName.text = questManager.quests[0].questName.ToString();
questDesc.text = questManager.quests[0].questDescription.ToString();
}
// Update the value of the current quest name and description during gameplay Update().
public void UpdateUIInformation()
{
questName.text = questManager.quests[2].questName.ToString();
questDesc.text = questManager.quests[2].questDescription.ToString();
}
QuestManager
public List<Quest> quests = new List<Quest>();
public List<Quest> finishedQuests = new List<Quest>();
public UIManager uiManager;
private void Start()
{
// Check to see if no quests exist in the list before instantiating a list of quests.
if (quests.Count == 0)
{
InstantiateQuests(); // Create a bunch of quest constructs.
}
else
{
return;
}
}
private void Update()
{
CheckCurrentQuestStatus();
}
// Check if the current quest is complete.
public void CheckCurrentQuestStatus()
{
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.
{
finishedQuests.Add(quests[0]); // Add the finished quest to the finished quest list.
if(quests.Contains(quests[0])) // Check to see if the current finished quest is contained in the quests list.
{
quests.Remove(quests[0]); // Remove the finished quest from the quest list.
}
uiManager.UpdateUIInformation();
}
else
{
return;
}
}
