Implemented line part playing

Source/StevesUEHelpers/Private/StevesUI/TypewriterTextWidget.cpp

@@ -42,6 +42,7 @@ TSharedRef<SWidget> URichTextBlockForTypewriter::RebuildWidget()
 UTypewriterTextWidget::UTypewriterTextWidget(const FObjectInitializer& ObjectInitializer)
 	: Super(ObjectInitializer)
 {
+	bHasMoreLineParts = false;
 	bHasFinishedPlaying = true;
 }
 
@@ -54,6 +55,7 @@ void UTypewriterTextWidget::SetText(const FText& InText)
 		
 		LineText->SetText(InText);
 
+		bHasMoreLineParts = false;
 		bHasFinishedPlaying = true;
 	}
 }
@@ -69,13 +71,19 @@ FText UTypewriterTextWidget::GetText() const
 }
 
 void UTypewriterTextWidget::PlayLine(const FText& InLine, float Speed)
+{
+	CurrentLine = InLine;
+	RemainingLinePart = CurrentLine.ToString();
+	PlayNextLinePart(Speed);
+}
+
+void UTypewriterTextWidget::PlayNextLinePart(float Speed)
 {
 	check(GetWorld());
 
 	FTimerManager& TimerManager = GetWorld()->GetTimerManager();
 	TimerManager.ClearTimer(LetterTimer);
 
-	CurrentLine = InLine;
 	CurrentRunName = "";
 	CurrentLetterIndex = 0;
 	CachedLetterIndex = 0;
@@ -87,13 +95,14 @@ void UTypewriterTextWidget::PlayLine(const FText& InLine, float Speed)
 	Segments.Empty();
 	CachedSegmentText.Empty();
 
-	if (CurrentLine.IsEmpty())
+	if (RemainingLinePart.IsEmpty())
 	{
 		if (IsValid(LineText))
 		{
 			LineText->SetText(FText::GetEmpty());
 		}
 
+		bHasMoreLineParts = false;
 		bHasFinishedPlaying = true;
 		OnTypewriterLineFinished.Broadcast(this);
 		OnLineFinishedPlaying();
@@ -107,11 +116,12 @@ void UTypewriterTextWidget::PlayLine(const FText& InLine, float Speed)
 			LineText->SetText(FText::GetEmpty());
 		}
 
+		bHasMoreLineParts = false;
 		bHasFinishedPlaying = false;
 
 		LineText->SetText(FText());
 
-		const FString& currentLineString = CurrentLine.ToString();
+		const FString& currentLineString = RemainingLinePart;
 		CalculateWrappedString(currentLineString);
 
 		int maxLines = 3;
@@ -139,7 +149,8 @@ void UTypewriterTextWidget::PlayLine(const FText& InLine, float Speed)
 			int lastTerminator = currentLineString.FindLastCharByPredicate(IsSentenceTerminator, numLetters);
 			if (lastTerminator != INDEX_NONE)
 			{
-				const FString& shortenedString = currentLineString.Left(lastTerminator + 1);
+				int count = lastTerminator + 1;
+				const FString& shortenedString = currentLineString.Left(count);
 
 				CurrentRunName = "";
 				CurrentLetterIndex = 0;
@@ -154,10 +165,8 @@ void UTypewriterTextWidget::PlayLine(const FText& InLine, float Speed)
 
 				CalculateWrappedString(shortenedString);
 
-				// TODO Jonas: Play remaining line after the shortened string.
+				RemainingLinePart.RightInline(count);
-				// If this is done purely in the typewriter then advancing the dialog would
+				bHasMoreLineParts = true;
-				// skip over all but the last part of the text. Alternatively advancing has
-				// to get rerouted to trigger a dialogue action only for the last part.
 			}
 		}
 		
@@ -181,9 +190,16 @@ void UTypewriterTextWidget::SkipToLineEnd()
 		LineText->SetText(FText::FromString(CalculateSegments(nullptr)));
 	}
 
-	bHasFinishedPlaying = true;
+	if (bHasMoreLineParts)
-	OnTypewriterLineFinished.Broadcast(this);
+	{
-	OnLineFinishedPlaying();
+		OnTypewriterLinePartFinished.Broadcast(this);
+	}
+	else
+	{
+		bHasFinishedPlaying = true;
+		OnTypewriterLineFinished.Broadcast(this);
+		OnLineFinishedPlaying();
+	}
 }
 
 void UTypewriterTextWidget::PlayNextLetter()

Source/StevesUEHelpers/Public/StevesUI/TypewriterTextWidget.h

@@ -56,6 +56,10 @@ class STEVESUEHELPERS_API UTypewriterTextWidget : public UUserWidget
 public:
 	UTypewriterTextWidget(const FObjectInitializer& ObjectInitializer);
 
+	/// Event called when a line part has finished playing, whether on its own or when skipped to end
+	UPROPERTY(BlueprintAssignable)
+	FOnTypewriterLineFinished OnTypewriterLinePartFinished;
+
 	/// Event called when a line has finished playing, whether on its own or when skipped to end
 	UPROPERTY(BlueprintAssignable)
 	FOnTypewriterLineFinished OnTypewriterLineFinished;
@@ -102,6 +106,9 @@ public:
 	UFUNCTION(BlueprintCallable, Category = "Typewriter")
 	bool HasFinishedPlayingLine() const { return bHasFinishedPlaying; }
 
+	UFUNCTION(BlueprintCallable, Category = "Typewriter")
+	void PlayNextLinePart(float Speed = 1.0f);
+
 	UFUNCTION(BlueprintCallable, Category = "Typewriter")
 	void SkipToLineEnd();
 
@@ -132,7 +139,7 @@ private:
 	UPROPERTY()
 	FText CurrentLine;
 
-	
+	FString RemainingLinePart;
 
 	struct FTypewriterTextSegment
 	{
@@ -155,6 +162,7 @@ private:
 	float CombinedTextHeight = 0;
 
 	uint32 bHasFinishedPlaying : 1;
+	uint32 bHasMoreLineParts : 1;
 
 	FTimerHandle LetterTimer;
 	float CurrentPlaySpeed = 1;