Add new plugins, refactor exp, introduce stat forge to replace GAS

Plugins/SUDS/Source/SUDSEditor/Private/SUDSEditor.cpp

@@ -0,0 +1,65 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSEditor.h"
+
+#include "ISettingsModule.h"
+#include "ISettingsSection.h"
+#include "SUDSEditorSettings.h"
+#include "SUDSScriptActions.h"
+#include "Interfaces/IPluginManager.h"
+#include "Styling/SlateStyle.h"
+#include "Styling/SlateStyleRegistry.h"
+
+#define LOCTEXT_NAMESPACE "FSUDSModule"
+
+void FSUDSEditorModule::StartupModule()
+{
+	ScriptActions = MakeShared<FSUDSScriptActions>();
+	FAssetToolsModule::GetModule().Get().RegisterAssetTypeActions(ScriptActions.ToSharedRef());
+
+	auto SudsPlugin = IPluginManager::Get().FindPlugin(TEXT("SUDS"));
+	if (SudsPlugin.IsValid())
+	{
+		const FString IconDir = SudsPlugin->GetBaseDir() + "/Content/Editor/Slate/Icons";
+		const FVector2D Sz16 = FVector2D(16.0f, 16.0f);
+		const FVector2D Sz64 = FVector2D(64.0f, 64.0f);
+
+		StyleSet = MakeShared<FSlateStyleSet>("SUDSStyleSet");
+		StyleSet->Set(TEXT("ClassIcon.SUDSScript"), new FSlateImageBrush(IconDir / TEXT("SUDSScript_16x.png"), Sz16));
+		StyleSet->Set(TEXT("ClassThumbnail.SUDSScript"), new FSlateImageBrush(IconDir / TEXT("SUDSScript_64x.png"), Sz64));
+
+		FSlateStyleRegistry::RegisterSlateStyle(*StyleSet.Get());
+	}
+
+	// register settings
+	ISettingsModule* SettingsModule = FModuleManager::GetModulePtr<ISettingsModule>("Settings");
+	if (SettingsModule)
+	{
+		ISettingsSectionPtr SettingsSection = SettingsModule->RegisterSettings("Project", "Plugins", "SUDS Editor",
+			LOCTEXT("SUDSEditorSettingsName", "SUDS Editor"),
+			LOCTEXT("SUDSEditorSettingsDescription", "Configure the editor parts of SUDS."),
+			GetMutableDefault<USUDSEditorSettings>()
+		);
+	}
+
+	UE_LOG(LogSUDSEditor, Log, TEXT("SUDS Editor Module Started"))
+
+}
+
+void FSUDSEditorModule::ShutdownModule()
+{
+	if (StyleSet.IsValid())
+	{
+		FSlateStyleRegistry::UnRegisterSlateStyle(*StyleSet.Get());
+	}
+	
+	if (!FModuleManager::Get().IsModuleLoaded("AssetTools")) return;
+		FAssetToolsModule::GetModule().Get().UnregisterAssetTypeActions(ScriptActions.ToSharedRef());
+	
+	UE_LOG(LogSUDSEditor, Log, TEXT("SUDS Editor Module Shut Down"))
+}
+
+#undef LOCTEXT_NAMESPACE
+	
+IMPLEMENT_MODULE(FSUDSEditorModule, SUDSEditor)
+DEFINE_LOG_CATEGORY(LogSUDSEditor);

Plugins/SUDS/Source/SUDSEditor/Private/SUDSEditorScriptTools.cpp

@@ -0,0 +1,280 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSEditorScriptTools.h"
+
+#include "SUDSMessageLogger.h"
+#include "SUDSScript.h"
+#include "SUDSScriptImporter.h"
+#include "SUDSScriptNode.h"
+#include "SUDSScriptNodeGosub.h"
+#include "SUDSScriptNodeSet.h"
+#include "SUDSScriptNodeText.h"
+#include "EditorFramework/AssetImportData.h"
+#include "Misc/FileHelper.h"
+#include "Misc/PackageName.h"
+#include "Misc/Paths.h"
+#include "UObject/Package.h"
+
+void FSUDSEditorScriptTools::WriteBackTextIDs(USUDSScript* Script, FSUDSMessageLogger& Logger)
+{
+	const auto& SrcData = Script->AssetImportData->SourceData; 
+	if (SrcData.SourceFiles.Num() == 1)
+	{
+		TArray<FString> Lines;
+		FString SourceFile =  SrcData.SourceFiles[0].RelativeFilename;
+		auto Package = Script->GetPackage();
+		if (FPaths::IsRelative(SourceFile) && Package)
+		{
+			FString PackagePath = FPackageName::LongPackageNameToFilename(FPackageName::GetLongPackagePath(Package->GetPathName()));
+			SourceFile = FPaths::ConvertRelativePathToFull(PackagePath, SourceFile);
+		}
+		if (FFileHelper::LoadFileToStringArray(Lines, *SourceFile))
+		{
+			const int PrevErrs = Logger.NumErrors();
+			const bool bHeaderChanges = WriteBackTextIDsFromNodes(Script->GetHeaderNodes(), Lines, Script->GetName(), Logger);
+			const bool bBodyChanges = WriteBackTextIDsFromNodes(Script->GetNodes(), Lines, Script->GetName(), Logger);
+
+			if (Logger.NumErrors() > PrevErrs)
+			{
+				Logger.AddMessage(EMessageSeverity::Info,
+								  FText::FromString(FString::Printf(TEXT("Errors prevented saving updates to %s."), *Script->GetName())));
+			}
+			else if (bHeaderChanges || bBodyChanges)
+			{
+				// We need to re-hash file in memory before saving to prevent re-import
+				int32 Length = 10;
+				for(const FString& Line : Lines)
+				{
+					Length += Line.Len() + UE_ARRAY_COUNT(LINE_TERMINATOR);
+				}
+				FString CombinedString;
+				CombinedString.Reserve(Length);
+
+				for(const FString& Line : Lines)
+				{
+					CombinedString += Line;
+					CombinedString += LINE_TERMINATOR;
+				}
+
+				// Write source file back; always encode as UTF8 not default ANSI/UTF16
+				// Do this before updating asset import data so it picks up new file timestamp
+				FFileHelper::SaveStringToFile(FStringView(CombinedString), *SourceFile, FFileHelper::EEncodingOptions::ForceUTF8);
+
+				/*  BEGIN try to prevent re-import prompt
+				 *  This unfortunately didn't work, so removed & let it reimport
+				 
+				const FMD5Hash FileHash = FSUDSScriptImporter::CalculateHash(*CombinedString, CombinedString.Len());
+				Script->AssetImportData->Update(SourceFile, FileHash);
+
+				// Need to mark asset dirty since hash has changed
+				// Try to find the outer package so we can dirty it up
+				if (Script->GetOuter())
+				{
+					Script->GetOuter()->MarkPackageDirty();
+				}
+				else
+				{
+					Script->MarkPackageDirty();
+				}
+
+				// Even this doesn't work:
+				GUnrealEd->AutoReimportManager->IgnoreFileModification(SourceFile);
+
+				* END try to prevent re-import
+				*/
+
+				Logger.AddMessage(EMessageSeverity::Info,
+								  FText::FromString(FString::Printf(TEXT("Successfully updated %s"), *SourceFile)));
+				
+			}
+			else
+			{
+				Logger.AddMessage(EMessageSeverity::Info,
+								  FText::FromString(FString::Printf(TEXT("No changes were required to %s"), *SourceFile)));
+			}
+
+		}
+		else
+		{
+			Logger.AddMessage(EMessageSeverity::Error,
+			                  FText::FromString(FString::Printf(TEXT("Error opening source asset %s"), *SourceFile)));
+		}
+	}
+	else
+	{
+		Logger.AddMessage(EMessageSeverity::Error,
+		                  FText::FromString(
+			                  FString::Printf(TEXT("No source files associated with asset %s"), *Script->GetName())));
+	}
+}
+
+bool FSUDSEditorScriptTools::WriteBackTextIDsFromNodes(const TArray<USUDSScriptNode*> Nodes, TArray<FString>& Lines, const FString& NameForErrors, FSUDSMessageLogger& Logger)
+{
+	bool bAnyChanges = false;
+	// For each speaker line, set line and choice edge, use source line no to append text ID
+	for (const auto& N : Nodes)
+	{
+		if (N->GetNodeType() == ESUDSScriptNodeType::Text)
+		{
+			if (const auto* TN = Cast<USUDSScriptNodeText>(N))
+			{
+				bAnyChanges = WriteBackTextID(TN->GetText(), TN->GetSourceLineNo(), Lines, NameForErrors, Logger) || bAnyChanges;
+			}
+		}
+		else if (N->GetNodeType() == ESUDSScriptNodeType::SetVariable)
+		{
+			if (const auto* SN = Cast<USUDSScriptNodeSet>(N))
+			{
+				if (SN->GetExpression().IsTextLiteral())
+				{
+					FText Literal = SN->GetExpression().GetTextLiteralValue();
+					
+					bAnyChanges = WriteBackTextID(Literal, SN->GetSourceLineNo(), Lines, NameForErrors, Logger) || bAnyChanges;
+				}
+			}
+			
+		}
+		else if (N->GetNodeType() == ESUDSScriptNodeType::Choice)
+		{
+			// Edges
+			for (auto& Edge : N->GetEdges())
+			{
+				bAnyChanges = WriteBackTextID(Edge.GetText(), Edge.GetSourceLineNo(), Lines, NameForErrors, Logger) || bAnyChanges;
+			}
+		}
+		else if (N->GetNodeType() == ESUDSScriptNodeType::Gosub)
+		{
+			if (const auto* GN = Cast<USUDSScriptNodeGosub>(N))
+			// Need to write back Gosub IDs so that saved return stacks work
+			bAnyChanges = WriteBackGosubID(GN->GetGosubID(), GN->GetSourceLineNo(), Lines, NameForErrors, Logger) || bAnyChanges;
+		}
+	}
+
+	return bAnyChanges;
+}
+
+bool FSUDSEditorScriptTools::WriteBackTextID(const FText& AssetText, int LineNo, TArray<FString>& Lines, const FString& NameForErrors, FSUDSMessageLogger& Logger)
+{
+	if (AssetText.IsEmpty())
+		return false;
+
+	// Line numbers are 1-based
+	const int Idx = LineNo - 1;
+
+	if (!Lines.IsValidIndex(Idx))
+	{
+		Logger.AddMessage(EMessageSeverity::Error,
+		                  FText::FromString(FString::Printf(
+			                  TEXT("Cannot write back TextID to '%s', source line number %d is invalid (Text: '%s')"),
+			                  *NameForErrors,
+			                  LineNo,
+			                  *AssetText.ToString())));
+		return false;
+	}
+
+	const FString& SourceLine = Lines[Idx];
+	const FString TextID = SUDS_GET_TEXT_KEY(AssetText);
+	FString ExistingTextID;
+	int ExistingNum;
+	FStringView SourceLineView(SourceLine);
+	const bool bFoundExisting = FSUDSScriptImporter::RetrieveTextIDFromLine(SourceLineView, ExistingTextID, ExistingNum);
+
+	// Existing TextID - replace if already there
+	if (!bFoundExisting || ExistingTextID != TextID)
+	{
+		if (TextIDCheckMatch(AssetText, SourceLine))
+		{
+			FString Prefix(SourceLineView);
+			FString UpdatedLine = FString::Printf(TEXT("%s    %s"), *Prefix, *TextID);
+			Lines[Idx] = UpdatedLine;
+			return true;
+		}
+		else
+		{
+			Logger.AddMessage(EMessageSeverity::Error,
+			                  FText::FromString(FString::Printf(TEXT(
+				                  "Tried to set TextID on line %d of %s but source file did not contain expected text '%s'"
+			                  ),
+			                                                    LineNo,
+			                                                    *NameForErrors,
+			                                                    *AssetText.ToString())));
+			return false;
+		}
+	}
+	// Same, no need to change
+	return false;
+		
+}
+
+bool FSUDSEditorScriptTools::TextIDCheckMatch(const FText& AssetText, const FString& SourceLine)
+{
+	// Text from our asset must be present in the text in the source line
+	// However, in case this is a multi-line string, take the first line only
+	FString AssetStr = AssetText.ToString();
+	{
+		FString L, R;
+		if (AssetStr.Split("\n", &L, &R))
+		{
+			AssetStr = L.TrimStartAndEnd();
+		}
+	}
+
+	// Bear in mind that this line might be a text line, a choice or a set line
+	// therefore we only check if the source line contains the asset text
+
+	return SourceLine.Contains(AssetStr);
+	
+}
+
+bool FSUDSEditorScriptTools::WriteBackGosubID(const FString& GosubID,
+	int LineNo,
+	TArray<FString>& Lines,
+	const FString& NameForErrors,
+	FSUDSMessageLogger& Logger)
+{
+
+	// Line numbers are 1-based
+	const int Idx = LineNo - 1;
+
+	if (!Lines.IsValidIndex(Idx))
+	{
+		Logger.AddMessage(EMessageSeverity::Error,
+		                  FText::FromString(FString::Printf(
+			                  TEXT("Cannot write back GosubID to '%s', source line number %d is invalid"),
+			                  *NameForErrors,
+			                  LineNo)));
+		return false;
+	}
+
+	const FString& SourceLine = Lines[Idx];
+	FString ExistingID;
+	int ExistingNum;
+	FStringView SourceLineView(SourceLine);
+	const bool bFoundID = FSUDSScriptImporter::RetrieveGosubIDFromLine(SourceLineView, ExistingID, ExistingNum);
+	
+	if (!bFoundID || ExistingID != GosubID)
+	{
+		// Check it's a gosub line
+		if (SourceLine.Contains(TEXT("gosub")) || SourceLine.Contains(TEXT("go sub")))
+		{
+			FString Prefix(SourceLineView);
+			FString UpdatedLine = FString::Printf(TEXT("%s    %s"), *Prefix, *GosubID); 
+			Lines[Idx] = UpdatedLine;
+			return true;
+		}
+		else
+		{
+			Logger.AddMessage(EMessageSeverity::Error,
+			                  FText::FromString(FString::Printf(TEXT(
+				                  "Tried to set GosubID on line %d of %s but source file did not have a gosubu on that line"
+			                  ),
+			                                                    LineNo,
+			                                                    *NameForErrors)));
+			return false;
+			
+		}
+	}
+	// Same, no need to change
+	return false;
+		
+}

Plugins/SUDS/Source/SUDSEditor/Private/SUDSEditorSettings.cpp

@@ -0,0 +1,48 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSEditorSettings.h"
+#include "Misc/Paths.h"
+
+bool USUDSEditorSettings::ShouldGenerateVoiceAssets(const FString& PackagePath) const
+{
+	if (AlwaysAutoGenerateVoiceOverAssetsOnImport)
+		return true;
+
+	for (auto Dir : DirectoriesToAutoGenerateVoiceOverAssetsOnImport)
+	{
+		if (FPaths::IsUnderDirectory(PackagePath, Dir.Path))
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+FString USUDSEditorSettings::GetVoiceOutputDir(const FString& PackagePath, const FString& ScriptName) const
+{
+	return GetOutputDir(DialogueVoiceAssetLocation, DialogueVoiceAssetSharedDir.Path, PackagePath, ScriptName);
+}
+
+FString USUDSEditorSettings::GetWaveOutputDir(const FString& PackagePath, const FString& ScriptName) const
+{
+	return GetOutputDir(DialogueWaveAssetLocation, DialogueWaveAssetSharedDir.Path, PackagePath, ScriptName);
+}
+
+FString USUDSEditorSettings::GetOutputDir(ESUDSAssetLocation Location,
+                                          const FString& SharedPath,
+                                          const FString& PackagePath,
+                                          const FString& ScriptName)
+{
+	switch(Location)
+	{
+	default:
+	case ESUDSAssetLocation::SharedDirectory:
+		return SharedPath;
+	case ESUDSAssetLocation::SharedDirectorySubdir:
+		return FPaths::Combine(SharedPath, ScriptName);
+	case ESUDSAssetLocation::ScriptDirectory:
+		return PackagePath;
+	case ESUDSAssetLocation::ScriptDirectorySubdir:
+		return FPaths::Combine(PackagePath, ScriptName);
+	}
+}

Plugins/SUDS/Source/SUDSEditor/Private/SUDSEditorToolkit.h

@@ -0,0 +1,343 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "SUDSValue.h"
+#include "Framework/Commands/Commands.h"
+#include "Framework/Text/BaseTextLayoutMarshaller.h"
+#include "Toolkits/AssetEditorToolkit.h"
+#include "UObject/Object.h"
+#include "Widgets/Views/STableRow.h"
+
+class SMultiLineEditableTextBox;
+struct FSUDSValue;
+class USUDSDialogue;
+class USUDSScript;
+
+#define LOCTEXT_NAMESPACE "SUDS"
+
+class FSUDSToolbarCommands
+	: public TCommands<FSUDSToolbarCommands>
+{
+public:
+
+	FSUDSToolbarCommands()
+		: TCommands<FSUDSToolbarCommands>(
+			"SUDS",
+			LOCTEXT("SUDS", "Steves Unreal Dialogue System"),
+			NAME_None,
+#if ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION > 0
+			FAppStyle::GetAppStyleSetName()
+#else
+			FEditorStyle::GetStyleSetName()
+#endif
+		)
+	{ }
+
+public:
+
+	// TCommands interface
+
+	virtual void RegisterCommands() override
+	{
+		UI_COMMAND(StartDialogue, "Start Dialogue", "Start/restart dialogue", EUserInterfaceActionType::Button, FInputChord());
+		UI_COMMAND(WriteBackTextIDs, "Write String Keys", "Write string keys back to script source to stabilise for localisation / voice asset links", EUserInterfaceActionType::Button, FInputChord());
+		UI_COMMAND(GenerateVOAssets, "Generate Voice Assets", "Generate DialogueVoice and DialogueWave assets for VO", EUserInterfaceActionType::Button, FInputChord());
+	}
+
+public:
+
+	TSharedPtr<FUICommandInfo> StartDialogue;
+	TSharedPtr<FUICommandInfo> WriteBackTextIDs;
+	TSharedPtr<FUICommandInfo> GenerateVOAssets;
+};
+
+
+class FSUDSEditorOutputRow
+{
+public:
+	FText Prefix;
+	FText Line;
+	FSlateColor PrefixColour;
+	FSlateColor LineColour;
+	FSlateColor BgColour;
+
+	FSUDSEditorOutputRow(const FText& InPrefix,
+	                     const FText& InLine,
+	                     const FSlateColor& InPrefixColour,
+	                     const FSlateColor& InLineColour,
+	                     const FSlateColor& InBgColour) :
+		Prefix(InPrefix),
+		Line(InLine),
+		PrefixColour(InPrefixColour),
+		LineColour(InLineColour),
+		BgColour(InBgColour)
+	{
+	}
+
+	
+};
+
+class SSUDSEditorOutputItem : public SMultiColumnTableRow< TSharedPtr<FString> >
+{
+public:	
+	SLATE_BEGIN_ARGS(SSUDSEditorOutputItem)
+	{}
+	SLATE_ARGUMENT(float, InitialWidth)
+	SLATE_ARGUMENT(FText, Prefix)
+	SLATE_ARGUMENT(FText, Line)
+	SLATE_ARGUMENT(FSlateColor, PrefixColour)
+	SLATE_ARGUMENT(FSlateColor, LineColour)
+	SLATE_ARGUMENT(FSlateColor, BgColour)
+	
+SLATE_END_ARGS()
+
+public:
+
+	/**
+	 * Construct this widget.  Called by the SNew() Slate macro.
+	 *
+	 * @param	InArgs	          Declaration used by the SNew() macro to construct this widget.
+	 * @oaram   InOwnerTableView  The owner table into which this row is being placed.
+	 */
+	void Construct( const FArguments& InArgs, const TSharedRef<STableViewBase>& InOwnerTableView );
+
+	/**
+	 * Generates the widget for the specified column.
+	 *
+	 * @param ColumnName The name of the column to generate the widget for.
+	 * @return The widget.
+	 */
+	virtual TSharedRef<SWidget> GenerateWidgetForColumn( const FName& ColumnName ) override;
+protected:
+	float InitialWidth = 70;
+	FText Prefix;
+	FText Line;
+	FSlateColor PrefixColour;
+	FSlateColor LineColour;
+};
+
+
+class FSUDSEditorVariableRow
+{
+public:
+	FName Name;
+	FSUDSValue Value;
+	bool bIsManualOverride;
+
+	FSUDSEditorVariableRow(const FName& InName, const FSUDSValue& InValue, bool bIsManual) : Name(InName),
+		Value(InValue),
+		bIsManualOverride(bIsManual)
+	{
+	}
+
+	friend bool operator<(const FSUDSEditorVariableRow& Lhs, const FSUDSEditorVariableRow& RHS)
+	{
+		return Lhs.Name.LexicalLess(RHS.Name);
+	}
+
+	friend bool operator<(const TSharedPtr<FSUDSEditorVariableRow>& Lhs, const TSharedPtr<FSUDSEditorVariableRow>& RHS)
+	{
+		return *Lhs < *RHS;
+	}
+
+	
+
+};
+
+class SSUDSEditorVariableItem : public SMultiColumnTableRow< TSharedPtr<FString> >
+{
+public:	
+	SLATE_BEGIN_ARGS(SSUDSEditorVariableItem)
+	{}
+	SLATE_ARGUMENT(float, InitialWidth)
+	SLATE_ARGUMENT(FName, VariableName)
+	SLATE_ARGUMENT(FSUDSValue, VariableValue)
+	SLATE_ARGUMENT(bool, bIsManualOverride)
+	SLATE_ARGUMENT(class FSUDSEditorToolkit*, Parent)
+SLATE_END_ARGS()
+
+public:
+
+	/**
+	 * Construct this widget.  Called by the SNew() Slate macro.
+	 *
+	 * @param	InArgs	          Declaration used by the SNew() macro to construct this widget.
+	 * @oaram   InOwnerTableView  The owner table into which this row is being placed.
+	 */
+	void Construct( const FArguments& InArgs, const TSharedRef<STableViewBase>& InOwnerTableView );
+
+public:
+	/**
+	 * Generates the widget for the specified column.
+	 *
+	 * @param ColumnName The name of the column to generate the widget for.
+	 * @return The widget.
+	 */
+	virtual TSharedRef<SWidget> GenerateWidgetForColumn( const FName& ColumnName ) override;
+protected:
+	float InitialWidth = 70;
+	FName VariableName;
+	FSUDSValue VariableValue;
+	bool bIsManualOverride = false;
+	class FSUDSEditorToolkit* Parent = nullptr;
+
+	TSharedRef<class SWidget>  GetGenderMenu();
+	void OnGenderSelected(ETextGender TextGender);
+	virtual FVector2D ComputeDesiredSize(float) const override;
+
+};
+
+struct FSUDSTraceLogMessage
+{
+	TSharedRef<FString> Message;
+	FName Category;
+	FSlateColor Colour;
+
+	FSUDSTraceLogMessage(FName InCategory, const FString& InMessage, const FSlateColor& InColour)
+		: Message(MakeShared<FString>(InMessage))
+		, Category(InCategory)
+		, Colour(InColour)
+	{
+	}
+};
+
+
+class FSUDSTraceLogMarshaller : public FBaseTextLayoutMarshaller
+{
+public:
+
+	FSUDSTraceLogMarshaller();
+
+	// ITextLayoutMarshaller
+	virtual void SetText(const FString& SourceString, FTextLayout& TargetTextLayout) override;
+	virtual void GetText(FString& TargetString, const FTextLayout& SourceTextLayout) override;
+
+	void AppendMessage(FName InCategory, int LineNo, const FString& Message, const FSlateColor& Colour);
+	void ClearMessages();
+protected:
+	TArray< TSharedPtr<FSUDSTraceLogMessage> > Messages;	
+};
+
+// Trace log widget, really just so we can tick and automatically scroll to the end
+class SSUDSTraceLog	: public SCompoundWidget
+{
+public:
+	SLATE_BEGIN_ARGS(SSUDSTraceLog)
+	{}
+	SLATE_END_ARGS()
+
+	SSUDSTraceLog() : bIsUserScrolled(false) {}
+
+	void Construct(const FArguments& InArgs);
+	virtual void Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime) override;
+
+	void AppendMessage(FName InCategory, int LineNo, const FString& Message, const FSlateColor& Colour);
+	void ClearMessages();
+	void ScrollToEnd();
+	
+protected:
+	bool bIsUserScrolled;
+	TSharedPtr<FSUDSTraceLogMarshaller> TraceLogMarshaller;
+	TSharedPtr<SMultiLineEditableTextBox> TraceLogTextBox;
+
+	void OnUserScrolled(float X);
+
+};
+
+class FSUDSEditorToolkit : public FAssetEditorToolkit
+{
+public:
+	void InitEditor(const TArray<UObject*>& InObjects);
+
+	virtual void RegisterTabSpawners(const TSharedRef<FTabManager>& InTabManager) override;
+	virtual void UnregisterTabSpawners(const TSharedRef<FTabManager>& InTabManager) override;
+
+	virtual FText GetBaseToolkitName() const override;
+	virtual FName GetToolkitFName() const override;
+	virtual FLinearColor GetWorldCentricTabColorScale() const override;
+	virtual FString GetWorldCentricTabPrefix() const override;
+	void UserEditVariable(const FName& Name, FSUDSValue Value);
+	void DeleteVariable(const FName& Name);
+
+protected:
+	virtual void OnClose() override;
+
+private:
+	USUDSScript* Script = nullptr;
+	USUDSDialogue* Dialogue = nullptr;
+	float VarColumnWidth = 120;
+	float PrefixColumnWidth = 100;
+	FName StartLabel = NAME_None;
+	bool bResetVarsOnStart = true;
+	FDelegateHandle ReimportDelegateHandle;
+	// FSUDSEditorDialogueRow needs to held by a TSharedPtr for SListView
+	TSharedPtr<SListView<TSharedPtr<FSUDSEditorOutputRow>>> OutputListView;
+	TArray<TSharedPtr<FSUDSEditorOutputRow>> OutputRows;
+	TSharedPtr<SVerticalBox> ChoicesBox;
+	TSharedPtr<SListView<TSharedPtr<FSUDSEditorVariableRow>>> VariablesListView;
+	TArray<TSharedPtr<FSUDSEditorVariableRow>> VariableRows;
+	TSharedPtr<SSUDSTraceLog> TraceLog;
+	TMap<FName, FSUDSValue> ManualOverrideVariables;
+
+	static FName DialogueOutputTabName;
+	static FName DetailsTabName;
+	static FName VariablesTabName;
+	static FName LogTabName;
+	
+
+	const FSlateColor SpeakerColour = FLinearColor(1.0f, 1.0f, 0.6f, 1.0f);
+	const FSlateColor ChoiceColour = FLinearColor(0.4f, 1.0f, 0.4f, 1.0f);
+	const FSlateColor EventColour = FLinearColor(0.2f, 0.6f, 1.0f, 1.0f);
+	const FSlateColor VarSetColour = FLinearColor(0.8f, 0.6f, 0.9f, 1.0f);
+	const FSlateColor VarEditColour = FLinearColor(0.6f, 0.3f, 1.0f, 1.0f);
+	const FSlateColor StartColour = FLinearColor(1.0f, 0.5f, 0.0f, 1.0f);
+	const FSlateColor FinishColour = FLinearColor(1.0f, 0.3f, 0.3f, 1.0f);
+	const FSlateColor SelectColour = FLinearColor(1.0f, 0.0f, 0.5f, 1.0f);
+	const FSlateColor RowBgColour1 = FLinearColor(0.15f, 0.15f, 0.15f, 1.0f);
+	const FSlateColor RowBgColour2 = FLinearColor(0.3f, 0.3f, 0.3f, 1.0f);
+
+	void ExtendToolbar(FToolBarBuilder& ToolbarBuilder, TWeakPtr<SDockTab> Tab);
+	TSharedRef<class SWidget> GetStartLabelMenu();
+	FText GetSelectedStartLabel() const;
+	void OnStartLabelSelected(FName Label);
+	ECheckBoxState GetResetVarsCheckState() const;
+	void OnResetVarsCheckStateChanged(ECheckBoxState NewState);
+	FReply AddVariableClicked();
+	void UpdateVariables();
+	void EnsureTabsVisible();
+	void StartDialogue();
+	void DestroyDialogue();
+	void UpdateOutput();
+	void UpdateChoiceButtons();
+	void AddOutputRow(const FText& Prefix, const FText& Line, const FSlateColor& PrefixColour, const FSlateColor& LineColour);
+	void AddTraceLogRow(const FName& Category, int SourceLineNo, const FString& Message);
+
+	void AddDialogueStep(const FName& Category, int SourceLineNo, const FText& Description, const FText& Prefix);
+
+	void OnDialogueChoice(USUDSDialogue* Dialogue, int ChoiceIndex, int LineNo);
+	void OnDialogueEvent(USUDSDialogue* Dialogue, FName EventName, const TArray<FSUDSValue>& Args, int LineNo);
+	void OnDialogueFinished(USUDSDialogue* Dialogue);
+	void OnDialogueProceeding(USUDSDialogue* Dialogue);
+	void OnDialogueStarting(USUDSDialogue* Dialogue, FName LabelName);
+	void OnDialogueSpeakerLine(USUDSDialogue* Dialogue, int LineNo);
+	void OnDialogueSetVar(USUDSDialogue* Dialogue, FName VariableName, const FSUDSValue& ToValue, const FString& ExpressionStr, int LineNo);
+	void OnDialogueUserEditedVar(USUDSDialogue* Dialogue, FName VariableName, const FSUDSValue& ToValue);
+	void OnDialogueSelectEval(USUDSDialogue* Dialogue, const FString& ExpressionStr, bool bSuccess, int LineNo);
+	void OnDialogueRandomEval(USUDSDialogue* Dialogue, const int RandomOutcome, int LineNo);
+	
+	TSharedRef<ITableRow> OnGenerateRowForOutput(
+		TSharedPtr<FSUDSEditorOutputRow> FsudsEditorDialogueRow,
+		const TSharedRef<STableViewBase>& TableViewBase);
+	TSharedRef<ITableRow> OnGenerateRowForVariable(TSharedPtr<FSUDSEditorVariableRow> Row,
+	                                               const TSharedRef<STableViewBase>& Table);
+	FSlateColor GetColourForCategory(const FName& Category);
+	void OnPostReimport(UObject* Object, bool bSuccess);
+	void Clear();
+	void WriteBackTextIDs();
+	void GenerateVOAssets();
+
+};
+
+#undef LOCTEXT_NAMESPACE

Plugins/SUDS/Source/SUDSEditor/Private/SUDSEditorVoiceOverTools.cpp

@@ -0,0 +1,381 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSEditorVoiceOverTools.h"
+
+#include "ObjectTools.h"
+#include "PackageTools.h"
+#include "SUDSEditorSettings.h"
+#include "SUDSMessageLogger.h"
+#include "SUDSScript.h"
+#include "SUDSScriptNodeText.h"
+#include "AssetRegistry/AssetRegistryModule.h"
+#include "Internationalization/Regex.h"
+#include "Sound/DialogueVoice.h"
+#include "Sound/DialogueWave.h"
+#include "Sound/SoundWave.h"
+
+
+void FSUDSEditorVoiceOverTools::GenerateAssets(USUDSScript* Script, EObjectFlags Flags, FSUDSMessageLogger* Logger)
+{
+	// First check for problems
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		bool bError = false;
+		if ((Settings->DialogueVoiceAssetLocation == ESUDSAssetLocation::SharedDirectory || Settings->
+				DialogueVoiceAssetLocation == ESUDSAssetLocation::SharedDirectorySubdir) &&
+			(Settings->DialogueVoiceAssetSharedDir.Path.IsEmpty() ||
+				!FPackageName::IsValidPath(Settings->DialogueVoiceAssetSharedDir.Path)))
+		{
+			Logger->Logf(ELogVerbosity::Error,
+			             TEXT(
+				             "Dialogue Voice assets are set to generate to a shared dir, but the dir '%s' is not valid."),
+			             *Settings->DialogueVoiceAssetSharedDir.Path);
+			bError = true;
+		}
+		if ((Settings->DialogueWaveAssetLocation == ESUDSAssetLocation::SharedDirectory || Settings->
+				DialogueWaveAssetLocation == ESUDSAssetLocation::SharedDirectorySubdir) &&
+			(Settings->DialogueWaveAssetSharedDir.Path.IsEmpty() ||
+				!FPackageName::IsValidPath(Settings->DialogueWaveAssetSharedDir.Path)))
+		{
+			Logger->Logf(ELogVerbosity::Error,
+			             TEXT(
+				             "Dialogue Wave assets are set to generate to a shared dir, but the dir '%s' is not valid."),
+			             *Settings->DialogueWaveAssetSharedDir.Path);
+			bError = true;
+		}
+		if (bError) { return; }
+	}
+	else
+	{
+		Logger->Logf(ELogVerbosity::Error, TEXT("Unable to generate voice assets, settings not found"));
+		return;
+	}
+
+	TMap<FString, UDialogueVoice*> UnsavedVoices;
+	GenerateVoiceAssets(Script, Flags, Logger, UnsavedVoices);
+	GenerateWaveAssets(Script, Flags, UnsavedVoices, Logger);
+}
+
+void FSUDSEditorVoiceOverTools::GenerateVoiceAssets(USUDSScript* Script, EObjectFlags Flags, FSUDSMessageLogger* Logger, TMap<FString, UDialogueVoice*> &OutCreatedVoices)
+{
+	auto Registry = &FModuleManager::LoadModuleChecked<FAssetRegistryModule>(AssetRegistryConstants::ModuleName).Get();
+
+	FString Prefix;
+	FString ParentDir;
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		Prefix = Settings->DialogueVoiceAssetPrefix;
+		ParentDir = GetVoiceOutputDir(Script);
+	}
+	else
+	{
+		Logger->Logf(ELogVerbosity::Error, TEXT("Unable to generate voice assets, settings not found"));
+		return;
+	}
+
+	for (auto Speaker : Script->GetSpeakers())
+	{
+		// All Dialogue Voice assets will be created in their own package
+		FString PackageName;
+		FString  AssetName;
+		if (GetSpeakerVoiceAssetNames(Script, Speaker, PackageName, AssetName))
+		{
+			if (FPackageName::DoesPackageExist(*PackageName))
+			{
+				// Package already exists, so try and import over the top of it, if it doesn't already have a source file path
+				TArray<FAssetData> Assets;
+				if (Registry->GetAssetsByPackageName(*PackageName, Assets))
+				{
+					if (Assets.Num() > 0)
+					{
+						if (!Assets[0].GetAsset()->IsA(UDialogueVoice::StaticClass()))
+						{
+							Logger->Logf(ELogVerbosity::Error,
+										 TEXT(
+											 "Asset %s already exists but is not a Dialogue Voice! Cannot replace, please move aside and re-import script."),
+										 *PackageName);
+						}
+						else
+						{
+							// Make sure we still link the existing voice
+							Script->SetSpeakerVoice(Speaker, Cast<UDialogueVoice>(Assets[0].GetAsset()));
+							Script->MarkPackageDirty();
+						}
+						// Either way nothing more to do
+						continue;
+					}
+				}
+			}
+		
+
+			// If we got here then Dialogue Voice didn't exist (although package might have)
+			// It's safe to call CreatePackage either way, it'll return the existing one if needed
+			UPackage* Package = CreatePackage(*PackageName);
+			if (!ensure(Package))
+			{
+				Logger->Logf(ELogVerbosity::Error,
+							 TEXT("Failed to create/retrieve package for voice asset %s"),
+							 *PackageName);
+			}
+			else
+			{
+				//Logger->Logf(ELogVerbosity::Display, TEXT("Creating voice asset %s"), *PackageName);
+
+				UDialogueVoice* NewVoiceAsset = NewObject<UDialogueVoice>(Package, FName(AssetName), Flags);
+				OutCreatedVoices.Add(Speaker, NewVoiceAsset);
+				// there's nothing else to create here, voice is mostly a placeholder with the rest set up later by user
+				FAssetRegistryModule::AssetCreated(NewVoiceAsset);
+
+				Script->SetSpeakerVoice(Speaker, NewVoiceAsset);
+				Script->MarkPackageDirty();
+
+				Package->FullyLoad();
+				NewVoiceAsset->MarkPackageDirty();
+			}
+		}
+	}
+}
+
+bool FSUDSEditorVoiceOverTools::GetSpeakerVoicePackageName(USUDSScript* Script,
+	const FString& SpeakerID,
+	FString& OutPackageName)
+{
+	FString NotUsed;
+	return GetSpeakerVoiceAssetNames(Script, SpeakerID, OutPackageName, NotUsed);
+}
+
+bool FSUDSEditorVoiceOverTools::GetSpeakerVoiceAssetNames(USUDSScript* Script,
+	const FString& SpeakerID,
+	FString& OutPackageName,
+	FString& OutAssetName)
+{
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		FString Prefix = Settings->DialogueVoiceAssetPrefix;
+		FString ParentDir = GetVoiceOutputDir(Script);
+
+		OutAssetName = FString::Printf(TEXT("%s%s"), *Prefix, *ObjectTools::SanitizeObjectName(SpeakerID));
+		OutPackageName = UPackageTools::SanitizePackageName(ParentDir / OutAssetName);
+		return true;
+	}
+	return false;
+}
+
+UDialogueVoice* FSUDSEditorVoiceOverTools::FindSpeakerVoice(USUDSScript* Script,
+                                                            const FString& SpeakerID)
+{
+	FString PackageName;
+	if (GetSpeakerVoicePackageName(Script, SpeakerID, PackageName))
+	{
+		
+		auto Registry = &FModuleManager::LoadModuleChecked<FAssetRegistryModule>(AssetRegistryConstants::ModuleName).Get();
+
+		if (FPackageName::DoesPackageExist(*PackageName))
+		{
+			// Package already exists, so try and import over the top of it, if it doesn't already have a source file path
+			TArray<FAssetData> Assets;
+			if (Registry->GetAssetsByPackageName(*PackageName, Assets))
+			{
+				if (Assets.Num() > 0)
+				{
+					if (Assets[0].GetAsset()->IsA(UDialogueVoice::StaticClass()))
+					{
+						return Cast<UDialogueVoice>(Assets[0].GetAsset());
+					}
+				}
+			}
+		}
+	}
+	return nullptr;
+}
+
+void FSUDSEditorVoiceOverTools::GenerateWaveAssets(USUDSScript* Script, EObjectFlags Flags, TMap<FString, UDialogueVoice*> UnsavedVoices, FSUDSMessageLogger* Logger)
+{
+	// We need to identify specific lines of dialogue to specify a wave asset to go with them, which means we
+	// need to use the Text ID, just like we do for translations. This means that really, you shouldn't start to
+	// assign sounds to wave assets until you've written the text IDs back to the script
+	auto Registry = &FModuleManager::LoadModuleChecked<FAssetRegistryModule>(AssetRegistryConstants::ModuleName).Get();
+
+	FString Prefix;
+	FString ParentDir;
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		Prefix = FString::Printf(TEXT("%s%s_"), *Settings->DialogueWaveAssetPrefix, *GetScriptNameAsPrefix(Script));
+		ParentDir = GetWaveOutputDir(Script);
+	}
+	else
+	{
+		Logger->Logf(ELogVerbosity::Error, TEXT("Unable to generate wave assets, settings not found"));
+		return;
+	}
+
+	for (auto Node : Script->GetNodes())
+	{
+		if (auto Line = Cast<USUDSScriptNodeText>(Node))
+		{
+			// We use the TextID to identify a specific line, just like for translation
+			FString TextID = Line->GetTextID();
+
+			// Remove the '@' characters from the text ID for creating the asset name, they just turn into excessive '_'s
+			const FRegexPattern TextIDPattern(TEXT("\\@([0-9a-fA-F]+)\\@"));
+			FRegexMatcher TextIDRegex(TextIDPattern, TextID);
+			if (TextIDRegex.FindNext())
+			{
+				TextID = TextIDRegex.GetCaptureGroup(1);
+			}
+
+			// All Dialogue Voice assets will be created in their own package
+			const FString SanitizedName = FString::Printf(TEXT("%s%s"),
+			                                              *Prefix,
+			                                              *ObjectTools::SanitizeObjectName(TextID));
+			const FString PackageName = UPackageTools::SanitizePackageName(ParentDir / SanitizedName);
+
+			UDialogueWave* WaveAsset = nullptr;
+			if (FPackageName::DoesPackageExist(*PackageName))
+			{
+				// Package already exists, so try and import over the top of it, if it doesn't already have a source file path
+				TArray<FAssetData> Assets;
+				if (Registry->GetAssetsByPackageName(*PackageName, Assets))
+				{
+					if (Assets.Num() > 0)
+					{
+						if (!Assets[0].GetAsset()->IsA(UDialogueWave::StaticClass()))
+						{
+							Logger->Logf(ELogVerbosity::Error,
+							             TEXT(
+								             "Asset %s already exists but is not a Dialogue Wave! Cannot replace, please move aside and re-import script."),
+							             *PackageName);
+							continue;
+						}
+						else
+						{
+							WaveAsset = Cast<UDialogueWave>(Assets[0].GetAsset());
+						}
+					}
+				}
+			}
+
+			UDialogueVoice* SpeakerVoice = nullptr;
+			// Finding speaker assets via FAssetRegistryModule does not work on unsaved assets, so we need to check
+			// the unsaved voices that have been created in the previous step first
+			if (auto pSV = UnsavedVoices.Find(Line->GetSpeakerID()))
+			{
+				SpeakerVoice = *pSV;
+			}
+			if (!SpeakerVoice)
+			{
+				// Now try assets
+				SpeakerVoice = FindSpeakerVoice(Script, Line->GetSpeakerID());
+			}
+			if (!SpeakerVoice)
+			{
+				FString SpeakerPackageName;
+				GetSpeakerVoicePackageName(Script, Line->GetSpeakerID(), SpeakerPackageName);
+				Logger->Logf(ELogVerbosity::Error, TEXT("Error: speaker voice asset for %s is missing, expected to be at %s"), *Line->GetSpeakerID(), *SpeakerPackageName);
+				continue;
+			}
+
+			UPackage* Package = CreatePackage(*PackageName);
+			if (!ensure(Package))
+			{
+				Logger->Logf(ELogVerbosity::Error,
+				             TEXT("Failed to create/retrieve package for wave asset %s"),
+				             *PackageName);
+			}
+			else
+			{
+				FString NativeLangText = Line->GetText().ToString();
+				USoundWave* SoundWave = nullptr;
+				if (!WaveAsset)
+				{
+					//Logger->Logf(ELogVerbosity::Display, TEXT("Creating wave asset %s"), *PackageName);
+					WaveAsset = NewObject<UDialogueWave>(Package, FName(SanitizedName), Flags);
+					FAssetRegistryModule::AssetCreated(WaveAsset);
+				}
+				else
+				{
+					// We will always update the existing asset, but will warn if the text is changing
+					if (WaveAsset->ContextMappings.Num() > 0)
+					{
+						auto Mapping = WaveAsset->ContextMappings[0];
+						if (IsValid(Mapping.SoundWave))
+						{
+							SoundWave = Mapping.SoundWave;
+							// This is OK if the context is what we were going to create anyway, we'll just leave it alone
+							if (Mapping.Context.Speaker != SpeakerVoice ||
+								WaveAsset->SpokenText != NativeLangText)
+							{
+								// No good, user has assigned sound to this dialogue wave, but we need to change it to
+								// a different speaker / line
+								Logger->Logf(ELogVerbosity::Error,
+								             TEXT(
+									             "Dialogue Wave %s has an assigned Sound Wave but the speaker or text has changed. You should update the sound wave!"),
+								             *PackageName);
+							}
+						}
+					}
+				}
+
+
+				// Set spoken text - native language only. Dialogue Wave handles the localisation of this separately,
+				// we can't link it to our String Table unfortunately.
+				WaveAsset->SpokenText = NativeLangText;
+				// Set dialogue context
+				// We need a Speaker Voice, we'll leave the sound and targets blank
+				WaveAsset->UpdateContext(WaveAsset->ContextMappings[0], SoundWave, SpeakerVoice, TArray<UDialogueVoice*>());
+
+				// Now assign the wave to the line
+				Line->SetWave(WaveAsset);
+				Script->MarkPackageDirty();
+
+				Package->FullyLoad();
+				WaveAsset->MarkPackageDirty();
+			}
+		}
+	}
+}
+
+FString FSUDSEditorVoiceOverTools::GetVoiceOutputDir(USUDSScript* Script)
+{
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		const FString PackagePath = FPackageName::GetLongPackagePath(Script->GetOuter()->GetOutermost()->GetPathName());
+		const FString ScriptPrefix = GetScriptNameAsPrefix(Script);
+		return Settings->GetVoiceOutputDir(PackagePath, ScriptPrefix);
+	}
+	return FString();
+}
+
+FString FSUDSEditorVoiceOverTools::GetWaveOutputDir(USUDSScript* Script)
+{
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		const FString PackagePath = FPackageName::GetLongPackagePath(Script->GetOuter()->GetOutermost()->GetPathName());
+		const FString ScriptPrefix = GetScriptNameAsPrefix(Script);
+		return Settings->GetWaveOutputDir(PackagePath, ScriptPrefix);
+	}
+	return FString();
+}
+
+
+
+FString FSUDSEditorVoiceOverTools::GetScriptNameAsPrefix(USUDSScript* Script)
+{
+	FString Name = Script->GetName();
+
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		if (Settings->StripScriptPrefixesWhenGeneratingNames)
+		{
+			int32 Index = INDEX_NONE;
+			if (Name.FindChar('_', Index))
+			{
+				if (Index < Name.Len() - 1)
+				{
+					Name = Name.RightChop(Index + 1);
+				}
+			}
+		}
+	}	
+	return Name;
+}

Plugins/SUDS/Source/SUDSEditor/Private/SUDSMessageLogger.cpp

@@ -0,0 +1,93 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSMessageLogger.h"
+#include "IMessageLogListing.h"
+#include "MessageLogModule.h"
+#include "Modules/ModuleManager.h"
+
+FSUDSMessageLogger::~FSUDSMessageLogger()
+{
+	if (bWriteToMessageLog)
+	{
+		//Always clear the old message after an import or re-import
+		const TCHAR* LogTitle = TEXT("SUDS");
+		FMessageLogModule& MessageLogModule = FModuleManager::LoadModuleChecked<FMessageLogModule>("MessageLog");
+		TSharedPtr<class IMessageLogListing> LogListing = MessageLogModule.GetLogListing(LogTitle);
+		LogListing->SetLabel(FText::FromString("SUDS"));
+		// Should NOT clear messages here, otherwise when FSUDSMessageLogger is used multiple times in the import process,
+		// each one is clearing messages from previous stages of the import.
+		//LogListing->ClearMessages();
+
+		if(ErrorMessages.Num() > 0)
+		{
+			LogListing->AddMessages(MoveTemp(ErrorMessages));
+			LogListing->NotifyIfAnyMessages(NSLOCTEXT("SUDS", "ImportErrors", "There were issues with the import."), EMessageSeverity::Warning);
+			MessageLogModule.OpenMessageLog(LogTitle);
+		}
+	}
+}
+
+bool FSUDSMessageLogger::HasErrors() const
+{
+	for (const TSharedRef<FTokenizedMessage>& Msg : ErrorMessages)
+	{
+		if (Msg->GetSeverity() == EMessageSeverity::Error)
+		{
+			return true;
+		}
+	}
+	return false;		
+}
+
+int FSUDSMessageLogger::NumErrors() const
+{
+	int Errs = 0;
+	for (const TSharedRef<FTokenizedMessage>& Msg : ErrorMessages)
+	{
+		if (Msg->GetSeverity() == EMessageSeverity::Error)
+		{
+			++Errs;
+		}
+	}
+	return Errs;
+}
+
+bool FSUDSMessageLogger::HasWarnings() const
+{
+	for (const TSharedRef<FTokenizedMessage>& Msg : ErrorMessages)
+	{
+		if (Msg->GetSeverity() == EMessageSeverity::Warning)
+		{
+			return true;
+		}
+	}
+	return false;		
+}
+
+int FSUDSMessageLogger::NumWarnings() const
+{
+	int Count = 0;
+	for (const TSharedRef<FTokenizedMessage>& Msg : ErrorMessages)
+	{
+		if (Msg->GetSeverity() == EMessageSeverity::Warning)
+		{
+			++Count;
+		}
+	}
+	return Count;
+}
+
+void FSUDSMessageLogger::AddMessage(EMessageSeverity::Type Severity, const FText& Text)
+{
+	ErrorMessages.Add(FTokenizedMessage::Create(Severity, Text));
+}
+
+void FSUDSMessageLogger::ClearMessages()
+{
+	const TCHAR* LogTitle = TEXT("SUDS");
+	FMessageLogModule& MessageLogModule = FModuleManager::LoadModuleChecked<FMessageLogModule>("MessageLog");
+	TSharedPtr<class IMessageLogListing> LogListing = MessageLogModule.GetLogListing(LogTitle);
+	LogListing->SetLabel(FText::FromString("SUDS"));
+	LogListing->ClearMessages();
+}
+

Plugins/SUDS/Source/SUDSEditor/Private/SUDSScriptActions.cpp

@@ -0,0 +1,134 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSScriptActions.h"
+
+#include "SUDSEditorScriptTools.h"
+#include "SUDSEditorSettings.h"
+#include "SUDSEditorToolkit.h"
+#include "SUDSEditorVoiceOverTools.h"
+#include "SUDSMessageLogger.h"
+#include "SUDSScript.h"
+#include "ToolMenuSection.h"
+#include "EditorFramework/AssetImportData.h"
+#include "Misc/MessageDialog.h"
+#include "Widgets/Views/SListView.h"
+
+FText FSUDSScriptActions::GetName() const
+{
+	return INVTEXT("SUDS Script");
+}
+
+FString FSUDSScriptActions::GetObjectDisplayName(UObject* Object) const
+{
+	return Object->GetName();
+}
+
+UClass* FSUDSScriptActions::GetSupportedClass() const
+{
+	return USUDSScript::StaticClass();
+}
+
+FColor FSUDSScriptActions::GetTypeColor() const
+{
+	return FColor::Orange;
+}
+
+uint32 FSUDSScriptActions::GetCategories()
+{
+	return EAssetTypeCategories::Misc;
+}
+
+void FSUDSScriptActions::GetResolvedSourceFilePaths(const TArray<UObject*>& TypeAssets,
+	TArray<FString>& OutSourceFilePaths) const
+{
+	for (auto& Asset : TypeAssets)
+	{
+		const auto Script = CastChecked<USUDSScript>(Asset);
+		if (Script->AssetImportData)
+		{
+			Script->AssetImportData->ExtractFilenames(OutSourceFilePaths);
+		}
+	}
+}
+
+bool FSUDSScriptActions::HasActions(const TArray<UObject*>& InObjects) const
+{
+	return true;
+}
+
+void FSUDSScriptActions::OpenAssetEditor(const TArray<UObject*>& InObjects,
+	TSharedPtr<IToolkitHost> EditWithinLevelEditor)
+{
+	MakeShared<FSUDSEditorToolkit>()->InitEditor(InObjects);
+}
+
+void FSUDSScriptActions::GetActions(const TArray<UObject*>& InObjects, FToolMenuSection& Section)
+{
+	const auto Scripts = GetTypedWeakObjectPtrs<USUDSScript>(InObjects);
+
+	Section.AddMenuEntry(
+		"WriteBackTextIDs",
+		NSLOCTEXT("SUDS", "WriteBackTextIDs", "Write Back String Keys"),
+		NSLOCTEXT("SUDS",
+		          "WriteBackTextIDsTooltip",
+		          "Write string table keys back to source script to make them constant for localisation."),
+		FSlateIcon(FAppStyle::GetAppStyleSetName(), "Icons.Details"),
+		FUIAction(
+			FExecuteAction::CreateSP(this, &FSUDSScriptActions::WriteBackTextIDs, Scripts),
+			FCanExecuteAction()
+		)
+	);
+	Section.AddMenuEntry(
+		"GenerateVOAssets",
+		NSLOCTEXT("SUDS", "GenerateVOAssets", "Generate Voice Assets"),
+		NSLOCTEXT("SUDS",
+				  "GenerateVOAssetsTooltip",
+				  "Generate Dialogue Voice / Dialogue Wave assets for the selected scripts"),
+		FSlateIcon(FAppStyle::GetAppStyleSetName(), "Icons.Toolbar.Export"),
+		FUIAction(
+			FExecuteAction::CreateSP(this, &FSUDSScriptActions::GenerateVOAssets, Scripts),
+			FCanExecuteAction()
+		)
+	);
+
+}
+
+void FSUDSScriptActions::WriteBackTextIDs(TArray<TWeakObjectPtr<USUDSScript>> Scripts)
+{
+	if (FMessageDialog::Open(EAppMsgType::YesNo,
+						 FText::FromString(
+							 "Are you sure you want to write string keys back to the selected scripts?"))
+	== EAppReturnType::Yes)
+	{
+		FSUDSMessageLogger::ClearMessages();
+		FSUDSMessageLogger Logger;
+		for (auto Script : Scripts)
+		{
+			if (Script.IsValid())
+			{
+				FSUDSEditorScriptTools::WriteBackTextIDs(Script.Get(), Logger);
+			}
+		}
+	}
+}
+
+
+void FSUDSScriptActions::GenerateVOAssets(TArray<TWeakObjectPtr<USUDSScript>> Scripts)
+{
+	if (FMessageDialog::Open(EAppMsgType::YesNo,
+	                         FText::FromString(
+		                         "Are you sure you want to generate Dialogue Voice / Dialogue Wave assets for the selected scripts?"))
+		== EAppReturnType::Yes)
+	{
+		EObjectFlags Flags = RF_Public | RF_Standalone | RF_Transactional;
+		FSUDSMessageLogger::ClearMessages();
+		FSUDSMessageLogger Logger;
+		for (auto WeakScript : Scripts)
+		{
+			if (auto Script = WeakScript.Get())
+			{
+				FSUDSEditorVoiceOverTools::GenerateAssets(Script, Flags, &Logger);
+			}
+		}
+	}
+}

Plugins/SUDS/Source/SUDSEditor/Private/SUDSScriptFactory.cpp

@@ -0,0 +1,262 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSScriptFactory.h"
+
+#include "PackageTools.h"
+#include "SUDSEditorSettings.h"
+#include "SUDSEditorVoiceOverTools.h"
+#include "SUDSMessageLogger.h"
+#include "SUDSScript.h"
+#include "AssetRegistry/AssetRegistryModule.h"
+#include "EditorFramework/AssetImportData.h"
+#include "Internationalization/StringTable.h"
+#include "Editor.h"
+#include "ObjectTools.h"
+#include "Internationalization/StringTableCore.h"
+
+
+USUDSScriptFactory::USUDSScriptFactory()
+{
+	SupportedClass = USUDSScript::StaticClass();
+	bCreateNew = false;
+	bEditorImport = true;
+	bText = true;
+	Formats.Add(TEXT("sud;SUDS Script File"));
+}
+
+UObject* USUDSScriptFactory::FactoryCreateText(UClass* InClass,
+	UObject* InParent,
+	FName InName,
+	EObjectFlags Flags,
+	UObject* Context,
+	const TCHAR* Type,
+	const TCHAR*& Buffer,
+	const TCHAR* BufferEnd,
+	FFeedbackContext* Warn)
+{
+	Flags |= RF_Transactional;
+	FSUDSMessageLogger::ClearMessages();
+	FSUDSMessageLogger Logger;
+
+	USUDSScript* Result = nullptr;
+
+	GEditor->GetEditorSubsystem<UImportSubsystem>()->BroadcastAssetPreImport(this, InClass, InParent, InName, Type);
+	
+	const FString FactoryCurrentFilename = UFactory::GetCurrentFilename();
+	FString CurrentSourcePath;
+	FString FilenameNoExtension;
+	FString UnusedExtension;
+	FPaths::Split(FactoryCurrentFilename, CurrentSourcePath, FilenameNoExtension, UnusedExtension);
+	const FString LongPackagePath = FPackageName::GetLongPackagePath(InParent->GetOutermost()->GetPathName());
+	
+	const FString NameForErrors(InName.ToString());
+
+	// Now parse this using utility
+	if(Importer.ImportFromBuffer(Buffer, BufferEnd - Buffer, NameForErrors, &Logger, false))
+	{
+		
+		// Populate with data
+		Result = NewObject<USUDSScript>(InParent, InName, Flags);
+		UStringTable* StringTable = CreateStringTable(InParent, InName, Result, Flags, &Logger);
+		Importer.PopulateAsset(Result, StringTable);
+		
+		// Register source info
+		const FMD5Hash Hash = FSUDSScriptImporter::CalculateHash(Buffer, BufferEnd - Buffer);
+		Result->AssetImportData->Update(FactoryCurrentFilename, Hash);
+
+		// VO assets at import time?
+		if (ShouldGenerateVoiceAssets(LongPackagePath))
+		{
+			FSUDSEditorVoiceOverTools::GenerateAssets(Result, Flags, &Logger);
+		}
+
+	}
+
+	GEditor->GetEditorSubsystem<UImportSubsystem>()->BroadcastAssetPostImport(this, Result);
+
+	return Result;
+}
+
+bool USUDSScriptFactory::ShouldGenerateVoiceAssets(const FString& PackagePath) const
+{
+	if (auto Settings = GetDefault<USUDSEditorSettings>())
+	{
+		return Settings->ShouldGenerateVoiceAssets(PackagePath);
+	}
+	return false;
+}
+
+UStringTable* USUDSScriptFactory::CreateStringTable(UObject* ScriptParent, FName InName, USUDSScript* Script, EObjectFlags Flags, FSUDSMessageLogger* Logger)
+{
+	auto Settings = GetDefault<USUDSEditorSettings>();
+	const bool bCreateSeparatePackage = Settings && Settings->bCreateStringTablesAsSeparatePackages;
+
+	const FName StringTableName = FName(InName.ToString() + "Strings");
+	UStringTable* Table = nullptr;
+	auto Registry = &FModuleManager::LoadModuleChecked<FAssetRegistryModule>(AssetRegistryConstants::ModuleName).Get();
+	const FString PackageDir = FPackageName::GetLongPackagePath(Script->GetOuter()->GetOutermost()->GetPathName());
+	const FString PackageName = UPackageTools::SanitizePackageName(PackageDir / StringTableName.ToString());
+
+	if (bCreateSeparatePackage)
+	{
+		
+		// Create string table as its own package (.uasset)
+
+		{
+			// Destroy any string table packed together with the script
+			const FString ScriptPackageName = Script->GetPackage()->GetPathName();
+			TArray<FAssetData> ScriptAssets;
+			Registry->GetAssetsByPackageName(*ScriptPackageName, ScriptAssets);
+			TArray<UObject*> StringTableAssets;
+			for (auto& Asset : ScriptAssets)
+			{
+				if (Asset.GetClass() == UStringTable::StaticClass())
+				{
+					StringTableAssets.Add(Asset.GetAsset());
+				}
+			}
+			if (StringTableAssets.Num() > 0)
+			{
+				ObjectTools::ForceDeleteObjects(StringTableAssets, false );
+			}
+		}
+
+
+		if (FPackageName::DoesPackageExist(*PackageName))
+		{
+			// Package already exists, so try and import over the top of it, if it doesn't already have a source file path
+			TArray<FAssetData> Assets;
+			if (Registry->GetAssetsByPackageName(*PackageName, Assets))
+			{
+				if (Assets.Num() > 0)
+				{
+					if (Assets[0].GetAsset()->IsA(UStringTable::StaticClass()))
+					{
+						Table = Cast<UStringTable>(Assets[0].GetAsset());
+						Table->GetMutableStringTable()->ClearSourceStrings();
+						Table->MarkPackageDirty();
+					}
+					else
+					{
+						Logger->Logf(ELogVerbosity::Error,
+									 TEXT(
+										 "Asset %s already exists but is not a String Table! Cannot replace, please move aside and re-import script."),
+									 *PackageName);
+						return nullptr;
+					}
+				}
+			}
+		}
+
+		if (!Table)
+		{
+			// String Table didn't exist (although package might have)
+			// It's safe to call CreatePackage either way, it'll return the existing one if needed
+			UPackage* Package = CreatePackage(*PackageName);
+			if (!ensure(Package))
+			{
+				Logger->Logf(ELogVerbosity::Error,
+							 TEXT("Failed to create/retrieve package for string table %s"),
+							 *PackageName);
+			}
+			else
+			{
+				//Logger->Logf(ELogVerbosity::Display, TEXT("Creating string table %s"), *PackageName);
+
+				// This constructor registers the string table with FStringTableRegistry
+				Table = NewObject<UStringTable>(Package, StringTableName, Flags);
+				Package->FullyLoad();
+				Table->MarkPackageDirty();
+				FAssetRegistryModule::AssetCreated(Table);
+			}
+		}
+	}
+	else
+	{
+		// Destroy separate strings package if it exists (could flip this option off after importing)
+		if (FPackageName::DoesPackageExist(*PackageName))
+		{
+			TArray<FAssetData> Assets;
+			if (Registry->GetAssetsByPackageName(*PackageName, Assets))
+			{
+				if (Assets.Num() > 0)
+				{
+					// Note: we need to force deletion because old string table will be referenced
+					// Unfortunately there is no ObjectTools::ForceDeleteAssets, only the inner
+					// ForceDeleteObjects, so we need to do it ourselves
+					ForceDeleteAssets(Assets);
+
+				}
+			}
+		}
+		
+		// Default route, create string table inside script package
+		Table = NewObject<UStringTable>(ScriptParent, StringTableName, Flags);
+
+	}
+		
+	return Table;
+	
+}
+
+void USUDSScriptFactory::ForceDeleteAssets(const TArray<FAssetData>& AssetsToDelete)
+{
+	// Copied from ObjectTools::DeleteAssets, except that we're using ForceDeleteObjects so we
+	// don't have to display any confusing messages about moving the string table into the shared asset
+	
+	TArray<TWeakObjectPtr<UPackage>> PackageFilesToDelete;
+	TArray<UObject*> ObjectsToDelete;
+	for ( int i = 0; i < AssetsToDelete.Num(); i++ )
+	{
+		const FAssetData& AssetData = AssetsToDelete[i];
+		UObject *ObjectToDelete = AssetData.GetAsset({ ULevel::LoadAllExternalObjectsTag });
+		// Assets can be loaded even when their underlying type/class no longer exists...
+		if ( ObjectToDelete!=nullptr )
+		{
+			ObjectsToDelete.Add( ObjectToDelete );
+		}
+		else if ( AssetData.IsUAsset() )
+		{
+			// ... In this cases there is no underlying asset or type so remove the package itself directly after confirming it's valid to do so.
+			FString PackageFilename;
+			if( !FPackageName::DoesPackageExist( AssetData.PackageName.ToString(), &PackageFilename ) )
+			{
+				// Could not determine filename for package so we can not delete
+				continue;
+			}
+
+			UPackage* Package = FindPackage(nullptr, *AssetData.PackageName.ToString());
+			if ( Package )
+			{
+				PackageFilesToDelete.Add(Package);
+			}
+		}
+	}
+
+	int32 NumObjectsToDelete = ObjectsToDelete.Num();
+	if ( NumObjectsToDelete > 0 )
+	{
+		ObjectTools::ForceDeleteObjects( ObjectsToDelete, false );
+	}
+
+	const int32 NumPackagesToDelete = PackageFilesToDelete.Num();
+	if (NumPackagesToDelete > 0)
+	{
+		TArray<UPackage*> PackagePointers;
+		for ( const auto& PkgIt : PackageFilesToDelete )
+		{
+			UPackage* Package = PkgIt.Get();
+			if ( Package )
+			{
+				PackagePointers.Add(Package);
+			}
+		}
+
+		if ( PackagePointers.Num() > 0 )
+		{
+			const bool bPerformReferenceCheck = true;
+			ObjectTools::CleanupAfterSuccessfulDelete(PackagePointers, bPerformReferenceCheck);
+		}
+	}
+}
+

Plugins/SUDS/Source/SUDSEditor/Private/SUDSScriptReimportFactory.cpp

@@ -0,0 +1,149 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#include "SUDSScriptReimportFactory.h"
+
+#include "SUDSEditor.h"
+#include "SUDSMessageLogger.h"
+#include "SUDSScript.h"
+#include "SUDSScriptNodeText.h"
+#include "EditorFramework/AssetImportData.h"
+#include "HAL/FileManager.h"
+#include "Sound/DialogueWave.h"
+
+USUDSScriptReimportFactory::USUDSScriptReimportFactory()
+{
+	SupportedClass = USUDSScript::StaticClass();
+	bCreateNew = false;
+	// We need to have a unique priority vs the original factory, so go after
+	ImportPriority = DefaultImportPriority - 1;
+}
+
+bool USUDSScriptReimportFactory::CanReimport(UObject* Obj, TArray<FString>& OutFilenames)
+{
+	USUDSScript* Script = Cast<USUDSScript>(Obj);
+	if (Script && Script->AssetImportData)
+	{
+		Script->AssetImportData->ExtractFilenames(OutFilenames);
+		return true;
+	}
+	return false;
+}
+
+void USUDSScriptReimportFactory::SetReimportPaths(UObject* Obj, const TArray<FString>& NewReimportPaths)
+{
+	USUDSScript* Script = Cast<USUDSScript>(Obj);
+	if (Script && ensure(NewReimportPaths.Num() == 1))
+	{
+		Script->AssetImportData->UpdateFilenameOnly(NewReimportPaths[0]);
+	}
+	
+}
+
+EReimportResult::Type USUDSScriptReimportFactory::Reimport(UObject* Obj)
+{
+	USUDSScript* Script = Cast<USUDSScript>(Obj);
+	if (!Script)
+	{
+		return EReimportResult::Failed;
+	}
+
+	// Make sure file is valid and exists
+	const FString Filename = Script->AssetImportData->GetFirstFilename();
+	if (!Filename.Len() || IFileManager::Get().FileSize(*Filename) == INDEX_NONE)
+	{
+		return EReimportResult::Failed;
+	}
+
+	// When a new script is created, it actually lives at the same address as the incoming one. UE must re-use objects
+	// when you put them back at the same outer & asset name?
+	// This means if we want to preserve anything from the previously imported object, such as generated VO asset links,
+	// we need to copy those out now.
+	TMap<FString, UDialogueVoice*> PrevSpeakerVoices = Script->GetSpeakerVoices();
+	// Store the TextID -> DialogueWave, but also store the line text as well so we can detect whether it matches & warn if not
+	TMap<FString, TPair<FString, UDialogueWave*> > PrevWaves;
+	for (auto Node : Script->GetNodes())
+	{
+		if (auto TN = Cast<USUDSScriptNodeText>(Node))
+		{
+			if (auto W = TN->GetWave())
+			{
+				PrevWaves.Add(TN->GetTextID(), TPair<FString, UDialogueWave*>(TN->GetText().ToString(), W));
+			}
+		}
+	}
+	
+	// Run the import again
+	EReimportResult::Type Result = EReimportResult::Failed;
+	bool OutCanceled = false;
+
+	if (ImportObject(Script->GetClass(), Script->GetOuter(), *Script->GetName(), RF_Public | RF_Standalone, Filename, nullptr, OutCanceled) != nullptr)
+	{
+		UE_LOG(LogSUDSEditor, Log, TEXT("Imported successfully"));
+
+		FSUDSMessageLogger Logger;
+		// Now, try to restore the speaker voice / line wave links from before
+		for (auto SpeakerID : Script->GetSpeakers())
+		{
+			if (auto pVoice = PrevSpeakerVoices.Find(SpeakerID))
+			{
+				Script->SetSpeakerVoice(SpeakerID, *pVoice);
+			}
+		}
+		for (auto Node : Script->GetNodes())
+		{
+			if (auto TN = Cast<USUDSScriptNodeText>(Node))
+			{
+				if (auto pWavePair = PrevWaves.Find(TN->GetTextID()))
+				{
+					// Set the wave link either way
+					TN->SetWave(pWavePair->Value);
+
+					// Check that the text is the same; if it's not, then lines have potentially changed
+					// we still live with the assignment we have (might be a minor edit) but user should be aware
+					if (TN->GetText().ToString() != pWavePair->Key)
+					{
+						Logger.Logf(ELogVerbosity::Error,
+						            TEXT(
+							            "TextID %s is linked to Dialogue Wave %s, but text has changed. Check whether this line is linked to the correct wave, and consider Writing String Keys back to script before making more script changes in future."),
+							            *TN->GetTextID(),
+							            *pWavePair->Value->GetName());
+					}
+
+				}
+			}
+		}
+		
+		Script->AssetImportData->Update(Filename);
+		
+		// Try to find the outer package so we can dirty it up
+		if (Script->GetOuter())
+		{
+			Script->GetOuter()->MarkPackageDirty();
+		}
+		else
+		{
+			Script->MarkPackageDirty();
+		}
+		Result = EReimportResult::Succeeded;
+	}
+	else
+	{
+		if (OutCanceled)
+		{
+			UE_LOG(LogSUDSEditor, Warning, TEXT("-- import canceled"));
+		}
+		else
+		{
+			UE_LOG(LogSUDSEditor, Warning, TEXT("-- import failed"));
+		}
+
+		Result = EReimportResult::Failed;
+	}
+
+	return Result;
+}
+
+int32 USUDSScriptReimportFactory::GetPriority() const
+{
+	return ImportPriority;
+}

Plugins/SUDS/Source/SUDSEditor/Public/SUDSEditor.h

@@ -0,0 +1,24 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Modules/ModuleInterface.h"
+
+class FSUDSScriptActions;
+class FSlateStyleSet;
+
+DECLARE_LOG_CATEGORY_EXTERN(LogSUDSEditor, Verbose, All);
+
+class FSUDSEditorModule : public IModuleInterface
+{
+public:
+
+	/** IModuleInterface implementation */
+	virtual void StartupModule() override;
+	virtual void ShutdownModule() override;
+
+protected:
+	TSharedPtr<FSUDSScriptActions> ScriptActions;
+	TSharedPtr<FSlateStyleSet> StyleSet;
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSEditorScriptTools.h

@@ -0,0 +1,22 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+
+class USUDSScript;
+class USUDSScriptNode;
+struct FSUDSMessageLogger;
+
+class FSUDSEditorScriptTools
+{
+public:
+
+	static void WriteBackTextIDs(USUDSScript* Script, FSUDSMessageLogger& Logger);
+	static bool WriteBackTextIDsFromNodes(const TArray<USUDSScriptNode*> Nodes, TArray<FString>& Lines, const FString& NameForErrors, FSUDSMessageLogger& Logger);
+	static bool WriteBackTextID(const FText& AssetText, int LineNo, TArray<FString>& Lines, const FString& NameForErrors, FSUDSMessageLogger& Logger);
+	static bool WriteBackGosubID(const FString& GosubID, int LineNo, TArray<FString>& Lines, const FString& NameForErrors, FSUDSMessageLogger& Logger);
+	static bool TextIDCheckMatch(const FText& AssetText, const FString& SourceLine);
+
+	
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSEditorSettings.h

@@ -0,0 +1,73 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "UObject/Object.h"
+#include "SUDSEditorSettings.generated.h"
+
+
+UENUM(BlueprintType)
+enum class ESUDSAssetLocation : uint8
+{
+	/// Use a single flat shared directory
+	SharedDirectory,
+	/// Use a shared base directory, but create subfolders based on the script asset name
+	SharedDirectorySubdir,
+	/// Place asset alongside the script that originated it
+	ScriptDirectory,
+	/// Place asset in a subfolder of the folder containing the script that generated it, named the same as the script
+	ScriptDirectorySubdir
+};
+
+class USUDSScript;
+/**
+ * Settings for editor-specific aspects of SUDS (no effect at runtime)
+ */
+UCLASS(config = Editor, defaultconfig, meta=(DisplayName="SUDS Editor"))
+class SUDSEDITOR_API USUDSEditorSettings : public UObject
+{
+	GENERATED_BODY()
+public:
+
+	UPROPERTY(config, EditAnywhere, Category = "Voice", meta = (Tooltip = "Where to place Dialogue Voice assets for speakers in scripts when generated", RelativeToGameContentDir, LongPackageName))
+	ESUDSAssetLocation DialogueVoiceAssetLocation = ESUDSAssetLocation::SharedDirectory;
+	
+	UPROPERTY(config, EditAnywhere, Category = "Voice", meta = (Tooltip = "Shared directory for Dialogue Voice assets, if using a shared directory", RelativeToGameContentDir, LongPackageName))
+	FDirectoryPath DialogueVoiceAssetSharedDir;
+
+	UPROPERTY(config, EditAnywhere, Category = "Voice", meta = (Tooltip = "Where to place Dialogue Wave assets for speaker lines in scripts", RelativeToGameContentDir, LongPackageName))
+	ESUDSAssetLocation DialogueWaveAssetLocation = ESUDSAssetLocation::ScriptDirectorySubdir;
+	
+	UPROPERTY(config, EditAnywhere, Category = "Voice", meta = (Tooltip = "Shared directory for Dialogue Wave assets, if using a shared directory", RelativeToGameContentDir, LongPackageName))
+	FDirectoryPath DialogueWaveAssetSharedDir;
+	
+	UPROPERTY(config, EditAnywhere, Category = "Voice", meta = (Tooltip = "Prefix to give Dialogue Voice assets in front of their SpeakerID", RelativeToGameContentDir, LongPackageName))
+	FString DialogueVoiceAssetPrefix = "DV_";
+	UPROPERTY(config, EditAnywhere, Category = "Voice", meta = (Tooltip = "Prefix to give Dialogue Wave assets in front of their SpeakerID", RelativeToGameContentDir, LongPackageName))
+	FString DialogueWaveAssetPrefix = "DW_";
+	UPROPERTY(config, EditAnywhere, Category = "Voice", meta = (Tooltip = "When generating subdirectories and wave asset names from script names, whether to strip characters before the first '_' to avoid including script prefix", RelativeToGameContentDir, LongPackageName))
+	bool StripScriptPrefixesWhenGeneratingNames = true;
+
+	UPROPERTY(config, EditAnywhere, Category = "Voice", AdvancedDisplay, meta = (Tooltip = "Whether to auto-generate Dialogue Voice/Wave assets for ALL dialogue scripts on import. Note: you can always generate VO assets manually."))
+	bool AlwaysAutoGenerateVoiceOverAssetsOnImport = false;
+
+	UPROPERTY(config, EditAnywhere, Category = "Voice", AdvancedDisplay, meta = (Tooltip = "Auto-generate Dialogue Voice/Wave assets for scripts in these directories (and subdirectories) on import. Note: you can always generate VO assets manually.", RelativeToGameContentDir, LongPackageName))
+	TArray<FDirectoryPath> DirectoriesToAutoGenerateVoiceOverAssetsOnImport;
+	
+	UPROPERTY(config, EditAnywhere, Category = "Choices", meta = (Tooltip = "Whether to generate a spoken line for choices (default false)."))
+	bool AlwaysGenerateSpeakerLinesFromChoices = false;
+
+	UPROPERTY(config, EditAnywhere, Category = "Choices", meta = (Tooltip = "The SpeakerID to use for speaker lines generated from choices"))
+	FString SpeakerIdForGeneratedLinesFromChoices = "Player";
+
+	UPROPERTY(config, EditAnywhere, Category = "Assets", AdvancedDisplay, meta = (Tooltip = "Whether to create string tables as a separate package (.uasset) from the SUDS Script, which will cause them to appear separately in the Content Browser (requires script re-import)"))
+	bool bCreateStringTablesAsSeparatePackages = true;
+
+	USUDSEditorSettings() {}
+
+	bool ShouldGenerateVoiceAssets(const FString& PackagePath) const;
+	FString GetVoiceOutputDir(const FString& PackagePath, const FString& ScriptName) const;
+	FString GetWaveOutputDir(const FString& PackagePath, const FString& ScriptName) const;
+	static FString GetOutputDir(ESUDSAssetLocation Location, const FString& SharedPath, const FString& PackagePath, const FString& ScriptName);
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSEditorVoiceOverTools.h

@@ -0,0 +1,34 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "SUDSScriptNodeText.h"
+#include "Sound/DialogueVoice.h"
+
+
+struct FSUDSMessageLogger;
+class USUDSScript;
+
+class SUDSEDITOR_API FSUDSEditorVoiceOverTools
+{
+public:
+	static void GenerateAssets(USUDSScript* Script, EObjectFlags Flags, FSUDSMessageLogger* Logger);
+protected:
+	static void GenerateVoiceAssets(USUDSScript* Script,
+	                                EObjectFlags Flags,
+	                                FSUDSMessageLogger *Logger,
+	                                TMap<FString, UDialogueVoice*> &OutCreatedVoices);
+	static void GenerateWaveAssets(USUDSScript* Script, EObjectFlags Flags, TMap<FString, UDialogueVoice*>, FSUDSMessageLogger* Logger);
+	static bool GetSpeakerVoicePackageName(USUDSScript* Script, const FString& SpeakerID, FString& OutPackageName);
+	static bool GetSpeakerVoiceAssetNames(USUDSScript* Script,
+	                               const FString& SpeakerID,
+	                               FString& OutPackageName,
+	                               FString& OutAssetName);
+	static UDialogueVoice* FindSpeakerVoice(USUDSScript* Script, const FString& SpeakerID);
+	static FString GetScriptNameAsPrefix(USUDSScript* Script);
+
+	static FString GetVoiceOutputDir(USUDSScript* Script);
+	static FString GetWaveOutputDir(USUDSScript* Script);
+
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSMessageLogger.h

@@ -0,0 +1,60 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Logging/TokenizedMessage.h"
+
+class FTokenizedMessage;
+
+struct SUDSEDITOR_API FSUDSMessageLogger
+{
+protected:
+	TArray<TSharedRef<FTokenizedMessage>> ErrorMessages;
+
+	bool bWriteToMessageLog = true;
+public:
+	FSUDSMessageLogger() {}
+	FSUDSMessageLogger(bool bWriteToMsg) : bWriteToMessageLog(bWriteToMsg) {}
+	~FSUDSMessageLogger();
+
+	void SetWriteToMessageLog(bool bWrite) { bWriteToMessageLog = bWrite; }
+	bool HasErrors() const;
+	int NumErrors() const;
+	bool HasWarnings() const;
+	int NumWarnings() const;
+
+	bool GetWriteToMessageLog() const { return bWriteToMessageLog; }
+	void AddMessage(EMessageSeverity::Type Severity, const FText& Text);
+	
+#if ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 6 
+	template <typename... Types>
+	FORCEINLINE void Logf(ELogVerbosity::Type Verbosity, UE::Core::TCheckedFormatString<FString::FmtCharType, Types...> Fmt, Types... Args)
+#else 
+	template <typename FmtType, typename... Types>
+	FORCEINLINE void Logf(ELogVerbosity::Type Verbosity, const FmtType& Fmt, Types... Args)
+#endif
+	{
+		EMessageSeverity::Type Sev = EMessageSeverity::Info;
+		switch(Verbosity)
+		{
+		case ELogVerbosity::Fatal:
+		case ELogVerbosity::Error:
+			Sev = EMessageSeverity::Error;
+			break;
+		case ELogVerbosity::Warning:
+			Sev = EMessageSeverity::Warning;
+			break;
+		default: ;
+		}
+		AddMessage(Sev, FText::FromString(FString::Printf(Fmt, Args...)));
+	}
+
+	const TArray<TSharedRef<FTokenizedMessage>>& GetErrorMessages() const { return ErrorMessages; }
+
+	/// Clear messages in preparation for an import
+	static void ClearMessages();
+
+	
+
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSScriptActions.h

@@ -0,0 +1,37 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "AssetTypeActions_Base.h"
+#include "SUDSScriptNodeGosub.h"
+#include "SUDSScriptNodeText.h"
+
+class USUDSScriptNode;
+class USUDSScript;
+struct FSUDSMessageLogger;
+/**
+ * 
+ */
+class FSUDSScriptActions : public FAssetTypeActions_Base
+{
+public:
+	virtual FText GetName() const override;
+	virtual FString GetObjectDisplayName(UObject* Object) const override;
+	virtual UClass* GetSupportedClass() const override;
+	virtual FColor GetTypeColor() const override;
+	virtual uint32 GetCategories() override;
+	virtual void GetResolvedSourceFilePaths(const TArray<UObject*>& TypeAssets,
+		TArray<FString>& OutSourceFilePaths) const override;
+	virtual bool IsImportedAsset() const override { return true; }
+	virtual void GetActions(const TArray<UObject*>& InObjects, FToolMenuSection& Section) override;
+	virtual bool HasActions(const TArray<UObject*>& InObjects) const override;
+	virtual void OpenAssetEditor(const TArray<UObject*>& InObjects,
+		TSharedPtr<IToolkitHost> EditWithinLevelEditor) override;
+
+protected:
+	void WriteBackTextIDs(TArray<TWeakObjectPtr<USUDSScript>> Scripts);
+
+	void GenerateVOAssets(TArray<TWeakObjectPtr<USUDSScript>> Scripts);
+		
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSScriptFactory.h

@@ -0,0 +1,37 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "SUDSScriptImporter.h"
+#include "Factories/Factory.h"
+#include "SUDSScriptFactory.generated.h"
+
+
+/**
+ * 
+ */
+UCLASS()
+class SUDSEDITOR_API USUDSScriptFactory : public UFactory
+{
+	GENERATED_BODY()
+
+public:
+	USUDSScriptFactory();
+protected:
+	virtual UObject* FactoryCreateText(UClass* InClass,
+	                                   UObject* InParent,
+	                                   FName InName,
+	                                   EObjectFlags Flags,
+	                                   UObject* Context,
+	                                   const TCHAR* Type,
+	                                   const TCHAR*& Buffer,
+	                                   const TCHAR* BufferEnd,
+	                                   FFeedbackContext* Warn) override;
+
+	bool ShouldGenerateVoiceAssets(const FString& PackagePath) const;
+	FSUDSScriptImporter Importer;
+
+	void ForceDeleteAssets(const TArray<FAssetData>& Assets);
+	UStringTable* CreateStringTable(UObject* ScriptParent, FName InName, USUDSScript* Script, EObjectFlags Flags, FSUDSMessageLogger* Logger);
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSScriptImporter.h

@@ -0,0 +1,520 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "SUDSExpression.h"
+
+struct FSUDSMessageLogger;
+class USUDSScript;
+DECLARE_LOG_CATEGORY_EXTERN(LogSUDSImporter, Verbose, All);
+
+struct SUDSEDITOR_API FSUDSParsedEdge
+{
+public:
+	/// Text associated with this edge (if a player choice option)
+	FString Text;
+	/// Identifier of the text, for the string table
+	FString TextID;
+	/// Metadata associated with text, for translator comments
+	TMap<FName, FString> TextMetadata;
+	/// The line this edge was created on
+	int SourceLineNo;
+	/// Condition expression that applies to this edge (for select nodes)
+	FSUDSExpression ConditionExpression;
+	/// Custom metadata for a node which the user can set. Can be used to annotate choice lines
+	/// Could be used to disable a choice if you don't have the stats to take it, or anything else
+	/// where you need a bit of extra information about a line that doesn't suit setting a dialogue variable for.
+	TMap<FName, FSUDSExpression> UserMetadata;
+	
+	int SourceNodeIdx = -1;
+	int TargetNodeIdx = -1;
+
+	FSUDSParsedEdge(int LineNo) : SourceLineNo(LineNo){}
+
+	FSUDSParsedEdge(int FromNodeIdx, int ToNodeIdx, int LineNo, const FString& InText, const FString& InTextID, const TMap<FName, FString>& Metadata, const TMap<FName, FSUDSExpression>& UserMeta)
+		: Text(InText),
+		  TextID(InTextID),
+		  TextMetadata(Metadata),
+		  SourceLineNo(LineNo),
+		  UserMetadata(UserMeta),
+		  SourceNodeIdx(FromNodeIdx),
+		  TargetNodeIdx(ToNodeIdx)
+	{
+	}
+
+	FSUDSParsedEdge(int FromNodeIdx, int ToNodeIdx, int LineNo)
+	: SourceLineNo(LineNo),
+	  SourceNodeIdx(FromNodeIdx),
+	  TargetNodeIdx(ToNodeIdx)
+	
+	{
+	}
+	
+	void Reset()
+	{
+		*this = FSUDSParsedEdge(-1);
+	}
+	
+};
+
+enum class ESUDSParsedNodeType : uint8
+{
+	/// Text node, displaying a line of dialogue
+	Text,
+	/// Choice node, displaying a series of user choices which navigate to other nodes
+	Choice,
+	/// Select node, automatically selecting one which navigates to another node based on state (also Random)
+	Select,
+	/// Goto node, redirects execution somewhere else
+	/// Gotos are only nodes in the parsing structure, because they need to be discoverable as a fallthrough destination
+	/// When converting to runtime use they just become edges
+	Goto,
+	/// Gosub node, acts like goto except stores return location
+	Gosub,
+	/// Return node, returns from a gosub
+	Return,
+	/// Set variable node
+	SetVariable,
+	/// Event node
+	Event
+};
+
+/// Intermediate parsed node from script text
+/// This will be converted into a final asset later
+struct SUDSEDITOR_API FSUDSParsedNode
+{
+public:
+	ESUDSParsedNodeType NodeType;
+	int OriginalIndent;
+	/// Identifier is speaker ID, goto label, variable name etc
+	FString Identifier;
+	/// Text in native language
+	FString Text;
+	/// Identifier of the text, for the string table
+	FString TextID;
+	/// Metadata associated with text, for translator comments
+	TMap<FName, FString> TextMetadata;
+	/// Expression, for nodes that use it (e.g. set)
+	FSUDSExpression Expression;
+	/// Event arguments, for event nodes
+	TArray<FSUDSExpression> EventArgs;
+	/// Labels which lead to this node
+	TArray<FString> Labels;
+	/// Edges leading to other nodes
+	TArray<FSUDSParsedEdge> Edges;
+	/// The line this node was created on
+	int SourceLineNo;
+	/// Whether this is a valid fall-through target
+	bool AllowFallthrough = true;
+	
+	/// Custom metadata for a node which the user can set. Can be used to annotate speaker lines
+	TMap<FName, FSUDSExpression> UserMetadata;
+
+	// Path hierarchy of choice nodes leading to this node, of the form "/C002/C006" etc, not including this node index
+	// This helps us identify valid fallthroughs
+	FString ChoicePath;
+	// Path hierarchy of select nodes leading to this node, of the form "/S002/S006" etc, not including this node index
+	// This helps us identify valid fallthroughs
+	FString ConditionalPath;
+
+	/// Although multiple edges can lead here, this index is for the auto-connected parent (may be nothing)
+	int ParentNodeIdx = -1;
+
+	FSUDSParsedNode(ESUDSParsedNodeType InNodeType, int Indent, int LineNo) : NodeType(InNodeType),
+	                                                                          OriginalIndent(Indent),
+	                                                                          SourceLineNo(LineNo)
+	{
+	}
+
+	FSUDSParsedNode(const FString& Label,
+	                const FString& GosubID,
+	                int Indent,
+	                int LineNo) : NodeType(ESUDSParsedNodeType::Gosub),
+	                              OriginalIndent(Indent),
+	                              Identifier(Label),
+	                              TextID(GosubID),
+	                              SourceLineNo(LineNo)
+	{
+	}
+
+	FSUDSParsedNode(const FString& InSpeaker, const FString& InText, const FString& InTextID, const TMap<FName, FString>& Metadata, const TMap<FName, FSUDSExpression>& UserMeta, int Indent, int LineNo)
+		: NodeType(ESUDSParsedNodeType::Text),
+		  OriginalIndent(Indent),
+		  Identifier(InSpeaker),
+		  Text(InText),
+		  TextID(InTextID),
+		  TextMetadata(Metadata),
+		  SourceLineNo(LineNo),
+		  UserMetadata(UserMeta)
+	{
+	}
+
+	FSUDSParsedNode(const FString& GotoLabel, int Indent, int LineNo)
+		: NodeType(ESUDSParsedNodeType::Goto), OriginalIndent(Indent), Identifier(GotoLabel), SourceLineNo(LineNo)
+	{
+	}
+
+	FSUDSParsedNode(const FString& VariableName, const FSUDSExpression& InExpr, int Indent, int LineNo)
+		: NodeType(ESUDSParsedNodeType::SetVariable),
+		  OriginalIndent(Indent),
+		  Identifier(VariableName),
+		  Expression(InExpr),
+		  SourceLineNo(LineNo)
+	{
+	}
+
+	FSUDSParsedNode(const FString& VariableName,
+	                const FSUDSExpression& InExpr,
+	                const FString& InTextID,
+	                int Indent,
+	                int LineNo)
+		: NodeType(ESUDSParsedNodeType::SetVariable),
+		  OriginalIndent(Indent),
+		  Identifier(VariableName),
+		  TextID(InTextID),
+		  Expression(InExpr),
+		  SourceLineNo(LineNo)
+	{
+	}
+};
+class SUDSEDITOR_API FSUDSScriptImporter
+{
+public:
+	bool ImportFromBuffer(const TCHAR* Buffer, int32 Len, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	void PopulateAsset(USUDSScript* Asset, UStringTable* StringTable);
+	static FMD5Hash CalculateHash(const TCHAR* Buffer, int32 Len);
+	static const FString EndGotoLabel;
+protected:
+	static const FString TreePathSeparator;
+
+	enum class EConditionalStage : uint8
+	{
+		IfStage,
+		ElseIfStage,
+		ElseStage,
+		RandomStage,
+		RandomOptionStage
+	};
+	enum class EConditionalParent : uint8
+	{
+		Select,
+		ElseIfStage,
+		ElseStage
+	};
+	
+	// Struct for tracking if/elseif blocks
+	struct ConditionalContext
+	{
+		/// Index of parent select node where else will be added
+		int SelectNodeIdx = -1;
+		/// Previous block index (parent for nesting)
+		int PreviousBlockIdx = -1;
+		/// Track whether we're in if/elseif/else
+		EConditionalStage Stage;
+		/// String identifying the current condition; for elseif or else contains original "if" context 
+		FString ConditionPathElement;
+
+		ConditionalContext(int InSelectNodeIdx, int InPrevBlockIdx, EConditionalStage InStage, const FString& InCondStr) :
+			SelectNodeIdx(InSelectNodeIdx),
+			PreviousBlockIdx(InPrevBlockIdx),
+			Stage(InStage),
+			ConditionPathElement(InCondStr)
+		{
+		}
+
+	};
+	
+	/// Struct for tracking indents
+	struct IndentContext
+	{
+	public:
+		// The index of the Node which is the parent of this context
+		// This potentially changes every time a sequential text node is encountered in the same context, so it's
+		// always pointing to the last node encountered at this level, for connection
+		int LastNodeIdx = -1;
+
+		/// The outermost indent level where this context lives
+		/// You can indent things that don't create a new context, e.g.
+		///   1. Indent a text line under another text line: this is the same as no indent, just a continuation
+		///   2. Indent choices or conditions under a text line
+		/// This is just good for readability, but does not create a new context, it's just a linear sequence
+		/// Therefore the ThresholdIndent tracks the outermost indent relating to the current linear sequence, to know
+		/// when you do in fact need to pop the current context off the stack.
+		int ThresholdIndent = 0;
+
+		int LastTextNodeIdx = -1;
+
+		/// The path entry for this indent, to be combined with all previous levels to provide full path context
+		FString PathEntry;
+
+		IndentContext(int NodeIdx, int Indent, const FString& Path) : LastNodeIdx(NodeIdx), ThresholdIndent(Indent), LastTextNodeIdx(-1), PathEntry(Path) {}
+
+	};
+
+	/// A tree of nodes. Contained to separate header nodes from body nodes
+	struct ParsedTree
+	{
+	public:
+		/// The indent context stack representing where we are in the indentation tree while parsing
+		/// There must always be 1 level (root)
+		TArray<IndentContext> IndentLevelStack;
+		/// When encountering conditions and choice lines, we are building up details for an edge to another node, but
+		/// we currently don't know the target node. We keep these pending details here
+		int EdgeInProgressNodeIdx = -1;
+		int EdgeInProgressEdgeIdx = -1;
+		/// List of all nodes, appended to as parsing progresses
+		/// Ordering is important, these nodes must be in the order encountered in the file 
+		TArray<FSUDSParsedNode> Nodes;
+		/// Record of goto labels to node index, built up during parsing (forward refs are OK so not complete until end of parsing)
+		TMap<FString, int> GotoLabelList;
+		/// Goto labels which have been encountered but we haven't found a destination yet
+		TArray<FString> PendingGotoLabels;
+		/// Goto labels that lead directly to another goto and thus are just aliases
+		TMap<FString, FString> AliasedGotoLabels;
+
+		/// Conditional blocks
+		/// "if" creates a new context, uses current as parent
+		/// "elseif" and "else" also create new contexts, but copies parent from current (sibling)
+		/// "endif" ends the context
+		/// You cannot have conditionals that were started in an indent context ending outside it
+		TArray<ConditionalContext> ConditionalBlocks;
+		/// Index of the current conditional block, if any
+		int CurrentConditionalBlockIdx = -1;
+
+		void Reset()
+		{
+			IndentLevelStack.Reset();
+			EdgeInProgressNodeIdx = EdgeInProgressEdgeIdx -1;
+			Nodes.Reset();
+			GotoLabelList.Reset();
+			PendingGotoLabels.Reset();
+			AliasedGotoLabels.Reset();
+			ConditionalBlocks.Reset();
+			CurrentConditionalBlockIdx = -1;
+		}
+	};
+
+	ParsedTree HeaderTree;
+	ParsedTree BodyTree;
+
+	struct ParsedMetadata
+	{
+	public:
+		FName Key;
+		FString Value;
+		int IndentLevel;
+
+		ParsedMetadata(const FName& InKey, const FString& InValue, int InIndentLevel)
+			: Key(InKey),
+			  Value(InValue),
+			  IndentLevel(InIndentLevel)
+		{
+		}
+	};
+
+	/// Text Metadata applied to speaker lines / choices until reset
+	/// For each key there's a stack of metadata, with most indented at the top
+	TMap<FName, TArray<ParsedMetadata>> PersistentMetadata;
+	/// Text Metadata applied just to the next speaker line or choice
+	TMap<FName, ParsedMetadata> TransientMetadata;
+	/// User metadata for the next speaker line or choice
+	TMap<FName, FSUDSExpression> UserMetadata;
+	
+	/// List of speakers, detected during parsing of lines of text 
+	TArray<FString> ReferencedSpeakers;
+	
+	const int TabIndentValue = 4;
+	bool bHeaderDone = false;
+	bool bTooLateForHeader = false;
+	bool bHeaderInProgress = false;
+	TOptional<bool> bOverrideGenerateSpeakerLineForChoice;
+	TOptional<FString> OverrideChoiceSpeakerID;
+	bool bTextInProgress = false;
+	int ChoiceUniqueId = 0;
+	/// For generating text IDs
+	int TextIDHighestNumber = 0;
+	/// For generating gosub IDs
+	int GosubIDHighestNumber = 0;
+	/// Parse a single line
+	bool ParseLine(const FStringView& Line, int LineNo, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	bool ParseHeaderLine(const FStringView& Line, int IndentLevel, int LineNo, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	bool ParseBodyLine(const FStringView& Line, int IndentLevel, int LineNo, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	bool ParseCommentMetadataLine(const FStringView& Line, int IndentLevel, int LineNo, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	bool IsLastNodeOfType(const ParsedTree& Tree, ESUDSParsedNodeType Type);
+	bool ParseChoiceLine(const FStringView& Line, ParsedTree& Tree, int IndentLevel, int LineNo, const FString& NameForErrors, FSUDSMessageLogger*
+	                     Logger,
+	                     bool bSilent);
+	FSUDSParsedEdge* GetEdgeInProgress(ParsedTree& Tree);
+	void EnsureChoiceNodeExistsAboveSelect(ParsedTree& Tree, int IndentLevel, int LineNo);
+	static bool IsConditionalLine(const FStringView& Line);
+	bool ParseConditionalLine(const FStringView& Line, ParsedTree& Tree, int IndentLevel, int LineNo, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	bool ParseIfLine(const FStringView& Line,
+	                 ParsedTree& Tree,
+	                 const FString& ConditionStr,
+	                 int IndentLevel,
+	                 int LineNo,
+	                 const FString& NameForErrors,
+	                 FSUDSMessageLogger* Logger,
+	                 bool bSilent);
+	bool ParseElseIfLine(const FStringView& Line,
+	                     ParsedTree& Tree,
+	                     const FString& ConditionStr,
+	                     int IndentLevel,
+	                     int LineNo,
+	                     const FString& NameForErrors,
+	                     FSUDSMessageLogger* Logger,
+	                     bool bSilent);
+
+	bool ParseElseLine(const FStringView& Line,
+	                   ParsedTree& Tree,
+	                   int IndentLevel,
+	                   int LineNo,
+	                   const FString& NameForErrors,
+	                   FSUDSMessageLogger* Logger,
+	                   bool bSilent);
+	bool ParseEndIfLine(const FStringView& Line,
+	                    ParsedTree& Tree,
+	                    int IndentLevel,
+	                    int LineNo,
+	                    const FString& NameForErrors,
+	                    FSUDSMessageLogger*
+	                    Logger,
+	                    bool bSilent);
+	static bool IsRandomLine(const FStringView& Line);
+	bool ParseRandomLine(const FStringView& Line,
+	                     ParsedTree& Tree,
+	                     int IndentLevel,
+	                     int LineNo,
+	                     const FString& NameForErrors,
+	                     FSUDSMessageLogger* Logger,
+	                     bool bSilent);
+	bool ParseBeginRandomLine(const FStringView& Line,
+						 ParsedTree& Tree,
+						 int IndentLevel,
+						 int LineNo,
+						 const FString& NameForErrors,
+						 FSUDSMessageLogger* Logger,
+						 bool bSilent);
+	bool ParseRandomOptionLine(const FStringView& Line,
+						 ParsedTree& Tree,
+						 int IndentLevel,
+						 int LineNo,
+						 const FString& NameForErrors,
+						 FSUDSMessageLogger* Logger,
+						 bool bSilent);
+	bool ParseEndRandomLine(const FStringView& Line,
+						 ParsedTree& Tree,
+						 int IndentLevel,
+						 int LineNo,
+						 const FString& NameForErrors,
+						 FSUDSMessageLogger* Logger,
+						 bool bSilent);
+	bool ParseGotoLabelLine(const FStringView& Line,
+	                        ParsedTree& Tree,
+	                        int IndentLevel,
+	                        int LineNo,
+	                        const FString& NameForErrors,
+	                        FSUDSMessageLogger* Logger,
+	                        bool bSilent);
+	bool ParseGotoLine(const FStringView& Line,
+	                   ParsedTree& Tree,
+	                   int IndentLevel,
+	                   int LineNo,
+	                   const FString& NameForErrors,
+	                   FSUDSMessageLogger* Logger,
+	                   bool bSilent);
+	bool ParseGosubLine(const FStringView& Line,
+	                    ParsedTree& Tree,
+	                    int IndentLevel,
+	                    int LineNo,
+	                    const FString& NameForErrors,
+	                    FSUDSMessageLogger* Logger,
+	                    bool bSilent);
+	bool ParseReturnLine(const FStringView& Line,
+	                     ParsedTree& Tree,
+	                     int IndentLevel,
+	                     int LineNo,
+	                     const FString& NameForErrors,
+	                     FSUDSMessageLogger* Logger,
+	                     bool bSilent);
+	bool ParseSetLine(const FStringView& Line,
+	                  ParsedTree& Tree,
+	                  int IndentLevel,
+	                  int LineNo,
+	                  const FString& NameForErrors,
+	                  FSUDSMessageLogger* Logger,
+	                  bool bSilent);
+	bool ParseEventLine(const FStringView& Line,
+	                    ParsedTree& Tree,
+	                    int IndentLevel,
+	                    int LineNo,
+	                    const FString& NameForErrors,
+	                    FSUDSMessageLogger* Logger,
+	                    bool bSilent);
+	bool ParseTextLine(const FStringView& Line,
+	                   ParsedTree& Tree,
+	                   int IndentLevel,
+	                   int LineNo,
+	                   const FString& NameForErrors,
+	                   FSUDSMessageLogger* Logger,
+	                   bool bSilent);
+	bool ParseImportSettingLine(const FStringView& Line,
+	                            ParsedTree& Tree,
+	                            int IndentLevel,
+	                            int LineNo,
+	                            const FString& NameForErrors,
+	                            FSUDSMessageLogger* Logger,
+	                            bool bSilent);
+	TMap<FName, FString> GetTextMetadataForNextEntry(int CurrentLineIndent);
+	TMap<FName, FSUDSExpression> ConsumeUserMetadata();
+	bool IsCommentLine(const FStringView& TrimmedLine);
+	FStringView TrimLine(const FStringView& Line, int& OutIndentLevel) const;
+	int FindChoiceAfterTextNode(const FSUDSScriptImporter::ParsedTree& Tree, int TextNodeIdx, const FString& ConditionalPath);
+	int RecurseChoiceNodeFindDeepest(const ParsedTree& Tree, int FromChoiceIdx, const FString& ConditionalPath);
+	int RecurseSelectNodeFindDeepestChoice(const ParsedTree& Tree, int FromSelectNode, const FString& ConditionalPath);
+	int FindEdge(const FSUDSScriptImporter::ParsedTree& Tree, int ParentNodeIdx, int TargetNodeIndex);
+	FString MakeIfConditionPathElement(int SelectNodeIdx, const FString& ConditionStr);
+	FString MakeElseIfConditionPathElement(int SelectNodeIdx, const FString& ConditionStr);
+	FString MakeElseConditionPathElement(int SelectNodeIdx);
+	int FindLastChoiceNode(const ParsedTree& Tree, int IndentLevel);
+	int FindLastChoiceNode(const ParsedTree& Tree, int IndentLevel, int FromIndex, const FString& ConditionPath);
+	void PopIndent(ParsedTree& Tree);
+	void PushIndent(ParsedTree& Tree, int NodeIdx, int Indent, const FString& Path);
+	FString GetCurrentTreePath(const FSUDSScriptImporter::ParsedTree& Tree);
+	FString GetCurrentTreeConditionalPath(const FSUDSScriptImporter::ParsedTree& Tree);
+	FString GetTreeConditionalPath(const ParsedTree& Tree, int NodeIndex);
+	void SetFallthroughForNewNode(FSUDSScriptImporter::ParsedTree& Tree, FSUDSParsedNode& NewNode);
+	int AppendNode(ParsedTree& Tree, const FSUDSParsedNode& InNode);
+	bool SelectNodeIsMissingElsePath(const FSUDSScriptImporter::ParsedTree& Tree, const FSUDSParsedNode& Node);
+	bool PostImportSanityCheck(const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	bool ChoiceNodeCheckPaths(const FSUDSParsedNode& ChoiceNode,
+	                          const FString& NameForErrors,
+	                          FSUDSMessageLogger* Logger,
+	                          bool bSilent);
+	bool RecurseChoiceNodeCheckPaths(const FSUDSParsedNode& OrigChoiceNode, const FSUDSParsedNode& CurrChoiceNode, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	bool RecurseChoiceNodeCheckPaths(const FSUDSParsedNode& ChoiceNode, const FSUDSParsedEdge& Edge, const FString& NameForErrors, FSUDSMessageLogger*
+	                                 Logger,
+	                                 bool bSilent);
+	void ConnectRemainingNodes(ParsedTree& Tree, const FString& NameForErrors, FSUDSMessageLogger* Logger, bool bSilent);
+	void GenerateTextIDs(ParsedTree& BodyTree);
+	int FindFallthroughNodeIndex(ParsedTree& Tree, int StartNodeIndex, const FString& FromChoicePath, const FString& FromConditionalPath);
+	bool RetrieveAndRemoveTextID(FStringView& InOutLine, FString& OutTextID);
+	bool RetrieveAndRemoveGosubID(FStringView& InOutLine, FString& OutTextID);
+	FString GenerateTextID();
+	const FSUDSParsedNode* GetNode(const ParsedTree& Tree, int Index = 0);
+	int GetGotoTargetNodeIndex(const ParsedTree& Tree, const FString& InLabel);
+	void PopulateAssetFromTree(USUDSScript* Asset,
+	                           const ParsedTree& Tree,
+	                           TArray<TObjectPtr<class USUDSScriptNode>>* pOutNodes,
+	                           TMap<FName, int>* pOutLabels,
+	                           UStringTable* StringTable);
+
+public:
+	const FSUDSParsedNode* GetNode(int Index = 0);
+	const FSUDSParsedNode* GetHeaderNode(int Index = 0);
+	/// Resolve a goto label to a target index (after import), or -1 if not resolvable
+	int GetGotoTargetNodeIndex(const FString& Label);
+	static bool RetrieveTextIDFromLine(FStringView& InOutLine, FString& OutTextID, int& OutNumber);
+	static bool RetrieveGosubIDFromLine(FStringView& InOutLine, FString& OutID, int& OutNumber);
+};

Plugins/SUDS/Source/SUDSEditor/Public/SUDSScriptReimportFactory.h

@@ -0,0 +1,27 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+#pragma once
+
+#include "CoreMinimal.h"
+#include "UObject/ObjectMacros.h"
+#include "EditorReimportHandler.h"
+#include "SUDSScriptFactory.h"
+
+#include "SUDSScriptReimportFactory.generated.h"
+
+// Reimports a USUDSScriptFactory asset
+// Necessary to get the import pop-up 
+UCLASS()
+class USUDSScriptReimportFactory : public USUDSScriptFactory, public FReimportHandler
+{
+	GENERATED_BODY()
+public:
+	USUDSScriptReimportFactory();
+	
+	//~ Begin FReimportHandler Interface
+	virtual bool CanReimport(UObject* Obj, TArray<FString>& OutFilenames) override;
+	virtual void SetReimportPaths(UObject* Obj, const TArray<FString>& NewReimportPaths) override;
+	virtual EReimportResult::Type Reimport(UObject* Obj) override;
+	virtual int32 GetPriority() const override;
+	//~ End FReimportHandler Interface
+};

Plugins/SUDS/Source/SUDSEditor/SUDSEditor.Build.cs

@@ -0,0 +1,62 @@
+// Copyright Steve Streeting 2022
+// Released under the MIT license https://opensource.org/license/MIT/
+using UnrealBuildTool;
+
+public class SUDSEditor : ModuleRules
+{
+	public SUDSEditor(ReadOnlyTargetRules Target) : base(Target)
+	{
+		PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;
+		
+		PublicIncludePaths.AddRange(
+			new string[] {
+				// ... add public include paths required here ...
+			}
+			);
+				
+		
+		PrivateIncludePaths.AddRange(
+			new string[] {
+				// ... add other private include paths required here ...
+			}
+			);
+			
+		
+		PublicDependencyModuleNames.AddRange(
+			new string[]
+			{
+				"Core",
+				"SUDS"
+				// ... add other public dependencies that you statically link with here ...
+			}
+			);
+			
+		
+		PrivateDependencyModuleNames.AddRange(
+			new string[]
+			{
+				"CoreUObject",
+				"Engine",
+				"Slate",
+				"SlateCore",
+				"InputCore", // needed by come Slate widgets
+				"Projects", // So that we can use the IPluginManager, required for our custom style
+				"ToolMenus",
+				"MessageLog",
+				"UnrealEd",
+				"EditorStyle"
+				// ... add private dependencies that you statically link with here ...	
+			}
+			);
+		
+		
+		DynamicallyLoadedModuleNames.AddRange(
+			new string[]
+			{
+				// ... add any modules that your module loads dynamically here ...
+			}
+			);
+
+	}
+	
+}