public void Next(string nodeId = null)
{
if (WaitingForChoices || !IsActive)
{
return;
}
if (ExitScheduled)
{
OnChatComplete();
return;
}
ClearButtons();
ChatNode node = chatIterator.GoToNext(nodeId);
if (node == null)
{
Debug.LogError("Chat quit unexpectedly. Couldn't find a node to display.");
OnChatComplete();
return;
}
Debug.Log(node.Text);
DialogueField.text = node.Text;
ExitScheduled = node.IsLast;
StopAllCoroutines();
StartCoroutine(TypeSentence(node));
}
private ChatNode QueryNode(string query)
{
// This will never (at present) scan for choice nodes (may not ever need to).
ChatNode nextNode = Collection.FirstOrDefault(node => node.Id == query);
return(ValidateNode(nextNode) ? nextNode : null);
}
private IEnumerator TypeSentence(ChatNode node)
{
OnNext?.Invoke(node);
NameField.text = node.ActorName;
DialogueField.text = "";
foreach (char letter in node.Text.ToCharArray())
{
DialogueField.text += letter;
yield return(null);
}
if (node.HasChoices)
{
WaitingForChoices = true;
// Load choices available
Debug.Log("Choices available: " + node.Choices.Count);
// TODO: You'll have to somehow pass things with the nodes here. Perhaps make
// a small class to pass, or, some sort of event listener?
// Or however many you need...
node.Choices.ForEach(choice =>
{
GameObject ButtonObj = Instantiate(ChoiceButtonPrefab, ButtonContainer.transform.position, Quaternion.identity, ButtonContainer.transform);
ButtonObj.transform.Find("Text").GetComponent <Text>()
.text = choice.Text;
ButtonObj.GetComponent <Button>()
.onClick.AddListener(() =>
{
WaitingForChoices = false;
Next(choice.To);
});
});
}
else if (NextButtonPrefab != null)
{
GameObject ButtonObj = Instantiate(NextButtonPrefab, ButtonContainer.transform.position, Quaternion.identity, ButtonContainer.transform);
ButtonObj.transform.Find("Text").GetComponent <Text>()
.text = "Next";
ButtonObj.GetComponent <Button>()
.onClick.AddListener(() => Next());
}
}
public ChatNode GoToNext(string query = null)
{
if (ChatQueue.Count == 0 && query == null)
{
Log.Out("This seems to be the entry call for the conversation. You must pass a query to it.");
return(null);
}
ChatNode CurrentNode = query != null?QueryNode(query) : ChatQueue.Dequeue();
if (CurrentNode == null)
{
return(null);
}
if (CurrentNode.HasRoute)
{
ChatNode NextNode = QueryNode(CurrentNode.To);
ChatQueue.Enqueue(NextNode);
}
if (CurrentNode.HasActions && CurrentNode.Actions.Any(action => action == EndConversationAction))
{
if (CurrentNode.Actions.Any(action => action == SaveConversationAction))
{
// ... onSave, etc
ChainPosition = CurrentNode.Id;
Log.Out("Saved chain up to ID.");
}
if (CurrentNode.Actions.Any(action => action == CancelConversationAction))
{
// ... onCancel, etc
Log.Out("Cancelled chain, nothing saved.");
}
CurrentNode.IsLast = true;
}
return(CurrentNode);
}
public void NextSentence(string specificPoint = null)
{
if (WaitingForChoices || !IsActive)
{
return;
}
if (ExitScheduled)
{
OnChatComplete();
return;
}
NextButton.SetActive(false);
if (ButtonContainer.transform.childCount > 0)
{
foreach (Transform child in ButtonContainer.transform)
{
Destroy(child.gameObject);
}
}
ChatNode node = chatIterator.GoToNext(specificPoint);
if (node == null)
{
Debug.LogError("Chat quit unexpectedly.");
OnChatComplete();
return;
}
Debug.Log(node.Text);
DialogueField.text = node.Text;
ExitScheduled = node.IsLast;
StopAllCoroutines();
StartCoroutine(TypeSentence(node));
}
private bool ValidateNode(ChatNode node)
{
// TODO: Consts please for these errors.
if (node == null)
{
Log.Out("There was a problem finding a node. Try running 'start' first.");
return(false);
}
if (NodeDataNotValid(node))
{
Log.Out("The current node is invalid. It must have a 'to' OR 'choices', or, an 'endConversation' action if this was intended.");
return(false);
}
if (NodeDataConflict(node))
{
Log.Out("The current node is invalid. It must have either 'to' OR 'choices', and not both.");
return(false);
}
return(true);
}
private bool NodeDataConflict(ChatNode node) => node.To != null && node.HasChoices;
private bool NodeDataNotValid(ChatNode node) => node.To == null && !node.IsLast && !node.HasChoices && !node.HasActions;
private bool NodeDataNotValid(ChatNode node) => node.To == null && !node.HasChoices && !node.Actions.Any(action => action == EndConversationAction);