/// <summary>
/// Shows a line of dialogue, gradually.
/// </summary>
/// <param name="dialogueLine">The line to deliver.</param>
/// <param name="onDialogueLineFinished">A callback to invoke when
/// the text has finished appearing.</param>
/// <returns></returns>
protected IEnumerator DoRunLine(LocalizedLine dialogueLine, System.Action onDialogueLineFinished)
{
finishCurrentLine = false;
// First, potentially change DialogueGroups
Yarn.Markup.MarkupParseResult markupResult = TryParseCharacter(dialogueLine);
// Then, prepare dialogue group for tweening, markup, etc
onLineParse?.Invoke();
// The final text we'll be showing for this line.
string text = TryParseMarkup(markupResult);
Sequence showAnimation = onLineStart.Invoke(text, textSpeed);
var frame = new WaitForEndOfFrame();
while (showAnimation != null && showAnimation.IsActive() && !showAnimation.IsComplete())
{
if (finishCurrentLine)
{
break;
}
yield return(frame);
}
// Indicate to the rest of the game that the text has finished
// being delivered
onTextFinishDisplaying?.Invoke();
// Indicate to the dialogue runner that we're done delivering
// the line here
onDialogueLineFinished();
}
private Yarn.Markup.MarkupParseResult TryParseCharacter(LocalizedLine dialogueLine)
{
Yarn.Markup.MarkupParseResult markupResult = dialogueLine.Text;
if (markupResult.TryGetAttributeWithName("character", out var attribute))
{
TextAttributeHandler.HandleAttribute(attribute, this);
return(markupResult.DeleteRange(attribute));
}
return(markupResult);
}
private string TryParseMarkup(Yarn.Markup.MarkupParseResult markupResult)
{
// Delete attributes
foreach (KeyValuePair <string, bool> pair in TextAttributeHandler.attributes)
{
// If attribute is present, remove its text
if (markupResult.TryGetAttributeWithName(pair.Key, out var attribute))
{
if (pair.Value == true)
{
markupResult = markupResult.DeleteRange(attribute);
}
TextAttributeHandler.HandleAttribute(attribute, this);
}
}
return(markupResult.Text);
}