Still working on event handling for hotkey widgets

Config/DefaultEngine.ini

@@ -1,3 +1,5 @@
+[/Script/Engine.Engine]
++ActiveClassRedirects=(OldClassName="/Script/Integration.lxLookAtWidget",NewClassName="/Script/Integration.lxLuaWidget")
 
 
 [/Script/EngineSettings.GameMapsSettings]

EnginePatches/uproject

@@ -22,6 +22,10 @@
 			"TargetAllowList": [
 				"Editor"
 			]
+		},
+		{
+			"Name": "CommonUI",
+			"Enabled": true
 		}
 	]
 }

Source/Integration/AssetLookup.cpp

@@ -105,7 +105,7 @@ void UlxAssetLookup::LogMaybeError(bool Error, const TCHAR *Message, const TCHAR
     }
 }
 
-UStaticMesh *UlxAssetLookup::GetStaticMeshByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound)
+UStaticMesh *UlxAssetLookup::LoadStaticMeshAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound)
 {
     ALuprexGameModeBase *mode = ALuprexGameModeBase::FromContext(Context);
     FString Path = mode->GetAssetLookup()->StaticMeshLoadPath(FName(FString("SM_") + Name));
@@ -124,7 +124,7 @@ UStaticMesh *UlxAssetLookup::GetStaticMeshByName(const UObject *Context, const F
 	return Result;
 }
 
-TSubclassOf<AActor> UlxAssetLookup::GetTangibleClassByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound) {
+TSubclassOf<AActor> UlxAssetLookup::LoadTangibleBlueprintAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound) {
     ALuprexGameModeBase *mode = ALuprexGameModeBase::FromContext(Context);
     FString Path = mode->GetAssetLookup()->TangibleLoadPath(FName(FString("TAN_") + Name));
     if (Path.IsEmpty())
@@ -152,7 +152,7 @@ TSubclassOf<AActor> UlxAssetLookup::GetTangibleClassByName(const UObject *Contex
 	return Result;
 }
 
-TSubclassOf<UUserWidget> UlxAssetLookup::GetWidgetByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound) {
+TSubclassOf<UUserWidget> UlxAssetLookup::LoadUserWidgetAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound) {
     ALuprexGameModeBase *mode = ALuprexGameModeBase::FromContext(Context);
     FString Path = mode->GetAssetLookup()->WidgetLoadPath(FName(FString("WB_") + Name));
     if (Path.IsEmpty())
@@ -168,13 +168,13 @@ TSubclassOf<UUserWidget> UlxAssetLookup::GetWidgetByName(const UObject *Context,
 	}
 	if (!Result->IsChildOf(UUserWidget::StaticClass()))
     {
-		LogMaybeError(ErrorIfNotFound, TEXT("Blueprint is not a Widget Blueprint"), *Path);
+		LogMaybeError(ErrorIfNotFound, TEXT("Blueprint does not derive from UUserWidget"), *Path);
 		return nullptr;
 	}
 	return Result;
 }
 
-TSubclassOf<UlxLookAtWidget> UlxAssetLookup::GetLookAtWidgetByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound) {
+TSubclassOf<UlxLuaWidget> UlxAssetLookup::LoadLuaWidgetAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound) {
     ALuprexGameModeBase *mode = ALuprexGameModeBase::FromContext(Context);
     FString Path = mode->GetAssetLookup()->WidgetLoadPath(FName(FString("WB_") + Name));
     if (Path.IsEmpty())
@@ -188,9 +188,9 @@ TSubclassOf<UlxLookAtWidget> UlxAssetLookup::GetLookAtWidgetByName(const UObject
 		LogMaybeError(ErrorIfNotFound, TEXT("Cannot load widget blueprint"), *Path);
 		return nullptr;
 	}
-	if (!Result->IsChildOf(UlxLookAtWidget::StaticClass()))
+	if (!Result->IsChildOf(UlxLuaWidget::StaticClass()))
     {
-		LogMaybeError(ErrorIfNotFound, TEXT("Blueprint is not a Luprex Look-At Widget"), *Path);
+		LogMaybeError(ErrorIfNotFound, TEXT("Blueprint does not derive from UlxLuaWidget"), *Path);
 		return nullptr;
 	}
 	return Result;

Source/Integration/AssetLookup.h

@@ -49,18 +49,18 @@ public:
     FString WidgetLoadPath(const FName &AssetName) const;
 
     // Get a static mesh by name
-    UFUNCTION(BlueprintPure, meta = (WorldContext = "Context"), Category = "Luprex|Miscellaneous")
-    static UStaticMesh *GetStaticMeshByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
+    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context"), Category = "Luprex|Asset Loading")
+    static UStaticMesh *LoadStaticMeshAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
  
     // Get a tangible class by name
-    UFUNCTION(BlueprintPure, meta = (WorldContext = "Context"), Category = "Luprex|Miscellaneous")
-    static TSubclassOf<AActor> GetTangibleClassByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
+    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context"), Category = "Luprex|Asset Loading")
+    static TSubclassOf<AActor> LoadTangibleBlueprintAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
 
     // Get a widget blueprint by name
-    UFUNCTION(BlueprintPure, meta = (WorldContext = "Context"), Category = "Luprex|Miscellaneous")
-    static TSubclassOf<UUserWidget> GetWidgetByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
+    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context"), Category = "Luprex|Asset Loading")
+    static TSubclassOf<UUserWidget> LoadUserWidgetAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
 
     // Get a look-at widget blueprint by name
-    UFUNCTION(BlueprintPure, meta = (WorldContext = "Context"), Category = "Luprex|Miscellaneous")
-    static TSubclassOf<UlxLookAtWidget> GetLookAtWidgetByName(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
+    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context"), Category = "Luprex|Asset Loading")
+    static TSubclassOf<UlxLuaWidget> LoadLuaWidgetAsset(const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
 };

Source/Integration/Integration.Build.cs

@@ -16,6 +16,8 @@ public class Integration : ModuleRules
 			"Sockets",
 			"Networking",
 			"EnhancedInput",
+			"UMG",
+			"CommonUI"
 		});
 
 		PrivateDependencyModuleNames.AddRange(new string[] {

Source/Integration/LuaCall.cpp

@@ -233,12 +233,12 @@ bool UlxLuaCallLibrary::LuaCallProbe(UObject *context, AActor *place, UlxLuaValu
         ReturnArray = nullptr;
 		return false;
 	}
-    ElxSuccessOrError Status;
+    ElxSuccessOrWrongType Status;
     FString ErrorMessage;
-    ReturnArray->ReadString(Status, ErrorMessage);
-    if (Status != ElxSuccessOrError::Success)
+    ReturnArray->ReadString(Status, ErrorMessage, false);
+    if (Status != ElxSuccessOrWrongType::Success)
     {
-		UE_LOG(LogLuprexIntegration, Error, TEXT("corruption in lua_probe"));
+		UE_LOG(LogLuprexIntegration, Error, TEXT("lua probe should always return an error message (possibly empty) as the first parameter"));
         ReturnArray = nullptr;
 		return false;
     }
@@ -408,16 +408,19 @@ FString UlxLuaValues::DebugString() const
     return Output.ToString();
 }
 
-ElxSuccessOrError UlxLuaValues::CheckType(ElxLuaValueType Type, ElxLuaValueType Desired)
+ElxSuccessOrWrongType UlxLuaValues::CheckType(bool LogErrorOnWrongType, ElxLuaValueType Type, ElxLuaValueType Desired)
 {
     if (Type != Desired)
     {
-        FString TypeName = StaticEnum<ElxLuaValueType>()->GetDisplayNameTextByValue(int64(Type)).ToString();
-        FString DesiredName = StaticEnum<ElxLuaValueType>()->GetDisplayNameTextByValue(int64(Desired)).ToString();
-        UE_LOG(LogBlueprint, Error, TEXT("Expected a value of type %s, but found %s instead."), *DesiredName, *TypeName);
-        return ElxSuccessOrError::Error;
+        if (LogErrorOnWrongType)
+        {
+            FString TypeName = StaticEnum<ElxLuaValueType>()->GetDisplayNameTextByValue(int64(Type)).ToString();
+            FString DesiredName = StaticEnum<ElxLuaValueType>()->GetDisplayNameTextByValue(int64(Desired)).ToString();
+            UE_LOG(LogBlueprint, Error, TEXT("Expected a value of type %s, but found %s instead."), *DesiredName, *TypeName);
+        }
+        return ElxSuccessOrWrongType::WrongType;
     }
-    return ElxSuccessOrError::Success;
+    return ElxSuccessOrWrongType::Success;
 }
 
 void UlxLuaValues::DiscardBeforeCursor()
@@ -437,40 +440,40 @@ ElxLuaValueType UlxLuaValues::NextType() const
     return Types[Cursor];
 }
 
-void UlxLuaValues::ReadString(ElxSuccessOrError &Status, FString &Result)
+void UlxLuaValues::ReadString(ElxSuccessOrWrongType &Status, FString &Result, bool LogErrorOnMismatch)
 {
-    Status = CheckType(NextType(), ElxLuaValueType::String);
-    if (Status == ElxSuccessOrError::Error)
+    Status = CheckType(LogErrorOnMismatch, NextType(), ElxLuaValueType::String);
+    if (Status == ElxSuccessOrWrongType::WrongType)
     {
         Result.Empty(); return;
     }
     Result = FlxStreamBuffer(Data[Cursor++]).read_fstring();
 }
 
-void UlxLuaValues::ReadName(ElxSuccessOrError &Status, FName &Result)
+void UlxLuaValues::ReadName(ElxSuccessOrWrongType &Status, FName &Result, bool LogErrorOnMismatch)
 {
-    Status = CheckType(NextType(), ElxLuaValueType::Name);
-    if (Status == ElxSuccessOrError::Error)
+    Status = CheckType(LogErrorOnMismatch, NextType(), ElxLuaValueType::Name);
+    if (Status == ElxSuccessOrWrongType::WrongType)
     {
         Result = FName(); return;
     }
     Result = FlxStreamBuffer(Data[Cursor++]).read_fname();
 }
 
-void UlxLuaValues::ReadFloat(ElxSuccessOrError &Status, double &Result)
+void UlxLuaValues::ReadFloat(ElxSuccessOrWrongType &Status, double &Result, bool LogErrorOnMismatch)
 {
-    Status = CheckType(NextType(), ElxLuaValueType::Float);
-    if (Status == ElxSuccessOrError::Error)
+    Status = CheckType(LogErrorOnMismatch, NextType(), ElxLuaValueType::Float);
+    if (Status == ElxSuccessOrWrongType::WrongType)
     {
         Result = 0.0; return;
     }
     Result = FlxStreamBuffer(Data[Cursor++]).read_double();
 }
 
-void UlxLuaValues::ReadInt(ElxSuccessOrError &Status, int &Result)
+void UlxLuaValues::ReadInt(ElxSuccessOrWrongType &Status, int &Result, bool LogErrorOnMismatch)
 {
-    Status = CheckType(NextType(), ElxLuaValueType::Float);
-    if (Status == ElxSuccessOrError::Error)
+    Status = CheckType(LogErrorOnMismatch, NextType(), ElxLuaValueType::Float);
+    if (Status == ElxSuccessOrWrongType::WrongType)
     {
         Result = 0.0; return;
     }
@@ -478,24 +481,24 @@ void UlxLuaValues::ReadInt(ElxSuccessOrError &Status, int &Result)
     Result = int(dvalue);
     if (double(Result) != dvalue)
     {
-        Result = 0; Status = ElxSuccessOrError::Error; return;
+        Result = 0; Status = ElxSuccessOrWrongType::WrongType; return;
     }
 }
 
-void UlxLuaValues::ReadVector(ElxSuccessOrError &Status, FVector &Result)
+void UlxLuaValues::ReadVector(ElxSuccessOrWrongType &Status, FVector &Result, bool LogErrorOnMismatch)
 {
-    Status = CheckType(NextType(), ElxLuaValueType::Vector);
-    if (Status == ElxSuccessOrError::Error)
+    Status = CheckType(LogErrorOnMismatch, NextType(), ElxLuaValueType::Vector);
+    if (Status == ElxSuccessOrWrongType::WrongType)
     {
         Result = FVector(); return;
     }
     Result = FlxStreamBuffer(Data[Cursor++]).read_fvector();
 }
 
-void UlxLuaValues::ReadVector2D(ElxSuccessOrError &Status, FVector2D &Result)
+void UlxLuaValues::ReadVector2D(ElxSuccessOrWrongType &Status, FVector2D &Result, bool LogErrorOnMismatch)
 {
-    Status = CheckType(NextType(), ElxLuaValueType::Vector);
-    if (Status == ElxSuccessOrError::Error)
+    Status = CheckType(LogErrorOnMismatch, NextType(), ElxLuaValueType::Vector);
+    if (Status == ElxSuccessOrWrongType::WrongType)
     {
         Result = FVector2D(); return;
     }
@@ -503,10 +506,10 @@ void UlxLuaValues::ReadVector2D(ElxSuccessOrError &Status, FVector2D &Result)
     Result = FVector2D(VValue.X, VValue.Y);
 }
 
-void UlxLuaValues::ReadBoolean(ElxSuccessOrError &Status, bool &Result)
+void UlxLuaValues::ReadBoolean(ElxSuccessOrWrongType &Status, bool &Result, bool LogErrorOnMismatch)
 {
-    Status = CheckType(NextType(), ElxLuaValueType::Boolean);
-    if (Status == ElxSuccessOrError::Error)
+    Status = CheckType(LogErrorOnMismatch, NextType(), ElxLuaValueType::Boolean);
+    if (Status == ElxSuccessOrWrongType::WrongType)
     {
         Result = false; return;
     }

Source/Integration/LuaCall.h

@@ -43,6 +43,12 @@ enum class ElxFoundOrNotFound : uint8 {
 	NotFound,
 };
 
+UENUM(BlueprintType)
+enum class ElxSuccessOrWrongType : uint8 {
+	Success,
+	WrongType,
+};
+
 /////////////////////////////////////////////////////////////////
 //
 // This is a little parser that parses Lua function 'prototypes'.
@@ -219,9 +225,9 @@ private:
     //
     void Empty();
 
-    // Compare two types.  If they aren't equal, log an error and return false.
+    // Compare two types.  If they aren't equal, possibly log an error, and return a status code.
     //
-    static ElxSuccessOrError CheckType(ElxLuaValueType Type, ElxLuaValueType Desired);
+    static ElxSuccessOrWrongType CheckType(bool LogErrorOnWrongType, ElxLuaValueType Type, ElxLuaValueType Desired);
 
 public:
     UlxLuaValues() { Cursor = 0; }
@@ -256,23 +262,23 @@ public:
     ElxLuaValueType SwitchNextType() { return NextType(); }
 	
     UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Status"), Category = "Luprex|Lua Value Array")
-    void ReadString(ElxSuccessOrError &Status, FString &Result);
+    void ReadString(ElxSuccessOrWrongType &Status, FString &Result, bool LogErrorOnWrongType = false);
 	
     UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Status"), Category = "Luprex|Lua Value Array")
-	void ReadName(ElxSuccessOrError &Status, FName &Result);
+	void ReadName(ElxSuccessOrWrongType &Status, FName &Result, bool LogErrorOnWrongType = false);
 	
     UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Status"), Category = "Luprex|Lua Value Array")
-	void ReadFloat(ElxSuccessOrError &Status, double &Result);
+	void ReadFloat(ElxSuccessOrWrongType &Status, double &Result, bool LogErrorOnWrongType = false);
 
     UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Status"), Category = "Luprex|Lua Value Array")
-	void ReadInt(ElxSuccessOrError &Status, int &Result);
+	void ReadInt(ElxSuccessOrWrongType &Status, int &Result, bool LogErrorOnWrongType = false);
 
     UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Status"), Category = "Luprex|Lua Value Array")
-	void ReadVector(ElxSuccessOrError &Status, FVector &Result);
+	void ReadVector(ElxSuccessOrWrongType &Status, FVector &Result, bool LogErrorOnWrongType = false);
 
     UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Status"), Category = "Luprex|Lua Value Array")
-	void ReadVector2D(ElxSuccessOrError &Status, FVector2D &Result);
+	void ReadVector2D(ElxSuccessOrWrongType &Status, FVector2D &Result, bool LogErrorOnWrongType = false);
 
     UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Status"), Category = "Luprex|Lua Value Array")
-	void ReadBoolean(ElxSuccessOrError &Status, bool &Result);
+	void ReadBoolean(ElxSuccessOrWrongType &Status, bool &Result, bool LogErrorOnWrongType = false);
 };

Source/Integration/LuaCallNode.cpp

@@ -426,7 +426,7 @@ void UK2Node_LuaInvoke::ExpandNode(class FKismetCompilerContext& CompilerContext
 			}
 			UK2Node_CallFunction *UnpackNode = MakeCallFunctionNode(UnpackingFunc);
 			ReturnArrayPin->MakeLinkTo(UnpackNode->FindPinChecked(UEdGraphSchema_K2::PN_Self));
-			CompilerContext.CopyPinLinksToIntermediate(*FindPinChecked(ErrorPinName), *UnpackNode->FindPinChecked(TEXT("Error")));
+			CompilerContext.CopyPinLinksToIntermediate(*FindPinChecked(ErrorPinName), *UnpackNode->FindPinChecked(TEXT("WrongType")));
 			CompilerContext.MovePinLinksToIntermediate(*Pin, *UnpackNode->FindPinChecked(TEXT("Result")));
 			ThenPin->MakeLinkTo(UnpackNode->GetExecPin());
 			ThenPin = UnpackNode->FindPinChecked(TEXT("Success"));

Source/Integration/LuprexGameModeBase.cpp

@@ -349,48 +349,6 @@ ALuprexGameModeBase *ALuprexGameModeBase::FromContext(const UObject *context) {
 	return result;
 }
 
-void ALuprexGameModeBase::ClearLookAtWidget(const UObject *Context)
-{
-	ALuprexGameModeBase *mode = FromContext(Context);
-	if (mode->LookAtWidget != nullptr)
-	{
-		mode->LookAtWidget->RemoveFromParent();
-		mode->LookAtWidget = nullptr;
-	}
-}
-
-void ALuprexGameModeBase::SetLookAtWidget(const UObject *Context, UlxLookAtWidget *Widget)
-{
-	ALuprexGameModeBase *Mode = FromContext(Context);
-	if (Mode->LookAtWidget != Widget)
-	{
-		ClearLookAtWidget(Context);
-	}
-	Mode->LookAtWidget = Widget;
-}
-
-UlxLookAtWidget *ALuprexGameModeBase::CreateLookAtWidgetByName(UObject *Context, const FString &BlueprintName,
-	ElxFoundOrNotFound &Result, bool ErrorIfNotFound, bool AddToViewport, bool SetLookAtWidget)
-{
-	ALuprexGameModeBase *Mode = FromContext(Context);
-	Result = ElxFoundOrNotFound::NotFound;
-	auto Blueprint = UlxAssetLookup::GetLookAtWidgetByName(Context, BlueprintName, ErrorIfNotFound);
-	if (Blueprint == nullptr) return nullptr;
-    APlayerController *pc = Context->GetWorld()->GetFirstPlayerController();
-	UlxLookAtWidget *Widget = Cast<UlxLookAtWidget>(UWidgetBlueprintLibrary::Create(Context, Blueprint, pc));
-	check(Widget != nullptr);
-	if (AddToViewport)
-	{
-		Widget->AddToViewport(100);
-	}
-	if (SetLookAtWidget)
-	{
-		Mode->SetLookAtWidget(Context, Widget);
-	}
-	Result = ElxFoundOrNotFound::Found;
-	return Widget;
-}
-
 
 void ALuprexGameModeBase::SetLookAt(const UObject *Context, const FHitResult &HitResult)
 {
@@ -402,7 +360,6 @@ void ALuprexGameModeBase::SetLookAt(const UObject *Context, const FHitResult &Hi
 	Mode->CurrentLookAt = HitResult;
 }
 
-
 FVector2D ALuprexGameModeBase::GetLookAtPixel(const UObject *Context)
 {
 	ALuprexGameModeBase *Mode = FromContext(Context);

Source/Integration/LuprexGameModeBase.h

@@ -13,6 +13,8 @@
 #include "TriggeredTask.h"
 #include "BlueprintErrors.h"
 #include "Blueprint/UserWidget.h"
+#include "Widgets/CommonActivatableWidgetContainer.h"
+#include "CommonActivatableWidget.h"
 #include "LuprexGameModeBase.generated.h"
 
 // Messages that come from inside the Luprex Core.
@@ -25,12 +27,12 @@ class UlxLuaValues;
 
 
 UCLASS(BlueprintType)
-class INTEGRATION_API UlxLookAtWidget : public UUserWidget
+class INTEGRATION_API UlxLuaWidget : public UCommonActivatableWidget
 {
 	GENERATED_BODY()
 
 public:
-	UFUNCTION(BlueprintImplementableEvent, BlueprintCallable, Category = "Luprex|Look-At Detection")
+	UFUNCTION(BlueprintImplementableEvent, BlueprintCallable, Category = "Luprex|Miscellaneous")
 	void ReadLuaConfiguration(UlxLuaValues *Config);
 };
 
@@ -79,36 +81,6 @@ public:
 	UFUNCTION(BlueprintPure, meta = (WorldContext = "Context"),Category = "Luprex|Look-At Detection")
 	static FVector2D GetLookAtPixel(const UObject *Context);
 	
-	UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context"), Category = "Luprex|Look-At Detection")
-	static void SetLookAtWidget(const UObject *Context, UlxLookAtWidget *Widget);
-
-	UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context"), Category = "Luprex|Look-At Detection")
-	static UlxLookAtWidget *GetLookAtWidget(const UObject *Context) { return FromContext(Context)->LookAtWidget; }
-
-	// Create a new Look-At Widget, given the blueprint's name.
-	//
-	// The prefix WB_ is added to the blueprint name, and the blueprint is
-	// searched for in the folder "Widgets".
-	//
-	// * If the specified blueprint is not found, execution continues
-	//   on the "Not Found" pin.
-	//
-	// * If the flag "Error if Not Found" is true, and the widget blueprint
-	//   is not found, logs an error.
-	//
-	// * If the flag "Add to Viewport" is true, the new widget is added
-	//   to the viewport.
-	//
-	// * If the flag "Set Look at Widget" is true, the new widget is stored
-	//   as the current look-at widget.
-	//
-	UFUNCTION(BlueprintCallable, meta = (ExpandEnumAsExecs = "Result", WorldContext = "Context"), Category = "Luprex|Look-At Detection")
-	static UlxLookAtWidget *CreateLookAtWidgetByName(UObject *Context, const FString &BlueprintName,
-		ElxFoundOrNotFound &Result, bool ErrorIfNotFound = true, bool AddToViewport = true, bool SetLookAtWidget = true);
-		
-	UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context"), Category = "Luprex|Look-At Detection")
-	static void ClearLookAtWidget(const UObject *Context);
-
 	//
 	// Look-At Related Events
 	//
@@ -183,9 +155,6 @@ public:
 
 	bool MustCallLookAtChanged;
 
-	UPROPERTY()
-	UlxLookAtWidget *LookAtWidget;
-
 	// The sensitivity level at which a log message triggers a debugger breakpoint.
 	UPROPERTY(EditAnywhere, Category="Debugging Tools")
 	ElxLogVerbosity BreakToDebuggerLogVerbosity;

Source/Integration/StoreFNameInputModifier.cpp

@@ -0,0 +1,56 @@
+#include "StoreFNameInputModifier.h"
+#include "EnhancedPlayerInput.h" 
+#include "LuprexGameModeBase.h"
+
+
+static const int ENCODE_LIMIT = 0x00FFFFFF;
+
+FInputActionValue UPassFNameAsAxis3D::ModifyRaw_Implementation(const UEnhancedPlayerInput* PlayerInput, FInputActionValue CurrentValue, float DeltaTime)
+{
+    // Internally, an FName is stored as three integers:
+    // ComparisonIndex, DisplayIndex, and Number.  These numbers
+    // are only valid within a single unreal process, but that's OK.
+    // We copy these three numbers into an Axis3D.
+    //
+    // Yes, that's ugly.  It would be nicer if FName was one
+    // of the types explicitly allowed in an FInputActionValue.
+    // Maybe some day!
+    //
+    // Integers larger than ENCODE_LIMIT cannot be losslessly
+    // converted to float.  Such numbers should never occur in
+    // practice: the string table should not contain that many
+    // strings!
+    //
+    uint32 cidx = FNameToStore.GetComparisonIndex().ToUnstableInt();
+    uint32 didx = FNameToStore.GetDisplayIndex().ToUnstableInt();
+    uint32 nidx = FNameToStore.GetNumber();
+    
+    // Make sure the three integers will fit into three floats without rounding or overflow.
+    if ((cidx > ENCODE_LIMIT) || (didx > ENCODE_LIMIT) || (nidx > ENCODE_LIMIT))
+    {
+        UE_LOG(LogLuprexIntegration, Error, TEXT("Name cannot be converted to FInputActionValue: %s"), *FNameToStore.ToString());
+        return FInputActionValue(FVector());
+    }
+
+    return FInputActionValue(FVector(cidx, didx, nidx));
+}
+
+FName UPassFNameAsAxis3D::DecodeFNameFromAxis3D(const FVector &Vec)
+{
+    uint32 cidx = static_cast<uint32>(Vec.X);
+    uint32 didx = static_cast<uint32>(Vec.Y);
+	uint32 nidx = static_cast<uint32>(Vec.Z);
+    FName Result(FNameEntryId::FromUnstableInt(cidx), FNameEntryId::FromUnstableInt(didx), nidx);
+    FName Inverse(FNameEntryId::FromUnstableInt(didx), FNameEntryId::FromUnstableInt(cidx), nidx);
+
+    if ((double(cidx) != Vec.X) || (double(didx) != Vec.Y) || (double(nidx) != Vec.Z) ||
+        (cidx > ENCODE_LIMIT) || (didx > ENCODE_LIMIT) || (nidx > ENCODE_LIMIT) ||
+        (!Result.IsValid()) || (!Inverse.IsValid()))
+    {
+        UE_LOG(LogLuprexIntegration, Error, TEXT("FVector is not an encoded FName."));
+        return NAME_None;
+    }
+    return Result;
+}
+
+

Source/Integration/StoreFNameInputModifier.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "InputModifiers.h"
+#include "StoreFNameInputModifier.generated.h"
+
+/**
+ * @brief Allows you to pass an FName into an event handler.
+ * 
+ * This modifier allows you to type an FName directly into an input mapping in
+ * the InputMappingContext editor, and have that FName passed through to an 
+ * enhanced input handler.
+ * 
+ * This modifier has an FName UPROPERTY which is editable in the InputMappingContext
+ * editor.  At runtime, it encodes the FName as an Axis3D.  In the event handler,
+ * the Axis3D can be decoded back into an FName using DecodeFNameFromAxis3D.
+ * 
+ * One use for this modifier is when you want to know exactly which
+ * keyboard key triggered an EnhancedInput event.  You can put the key's FName
+ * into the InputMappingContext, and it will get passed through to the event
+ * handler.
+ * 
+ */
+UCLASS()
+class INTEGRATION_API UPassFNameAsAxis3D : public UInputModifier
+{
+	GENERATED_BODY()
+
+public:
+	/**
+	 * @brief The FName to be encoded into the FInputActionValue.
+	 *
+	 * This property can be configured in the Input Mapping Context editor
+	 * for each specific mapping.
+	 * 
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Modifier Settings")
+	FName FNameToStore;
+
+protected:
+	virtual FInputActionValue ModifyRaw_Implementation(const UEnhancedPlayerInput* PlayerInput, FInputActionValue CurrentValue, float DeltaTime) override;
+
+	/**
+	 * @brief Decodes an FName that was passed by the PassFnameAsAxis3D modifier.
+	 * 
+	 * This function is used in an enhanced input event, where the PassFNameAsAxis3D
+	 * modifier was used to pass an FName into the event.  The value shows up as
+	 * an Axis3D, which much be decoded back into an FName.
+	 *
+	 */
+	UFUNCTION(BlueprintPure, Category = "Input|Enhanced")
+	static FName DecodeFNameFromAxis3D(const FVector& Encoded);
+
+};

Source/Integration/Tangible.cpp

@@ -33,10 +33,10 @@ void UlxTangible::SetActorBlueprint(const FString &XName) {
 	}
 
 	// Get the blueprint.
-	UClass *blueprint = UlxAssetLookup::GetTangibleClassByName(this, Name);
+	UClass *blueprint = UlxAssetLookup::LoadTangibleBlueprintAsset(this, Name);
 	if (blueprint == nullptr)
 	{
-		blueprint = UlxAssetLookup::GetTangibleClassByName(this, DEFAULT_BLUEPRINT);
+		blueprint = UlxAssetLookup::LoadTangibleBlueprintAsset(this, DEFAULT_BLUEPRINT);
 		check(blueprint != nullptr);
 	}
 

Source/Integration/UtilityLibrary.cpp

@@ -8,6 +8,8 @@
 #include "Kismet/GameplayStatics.h"
 #include "Blueprint/UserWidget.h"
 #include "Components/GridPanel.h"
+#include "InputMappingContext.h"
+
 
 
 #define LOCTEXT_NAMESPACE "Luprex Utility"
@@ -209,3 +211,21 @@ void UlxUtilityLibrary::GetPositionOfGridPanelMiddleCell(UGridPanel *GridPanel,
 		LowerRightXY.Y = (Row[0] + Row[1]) / TotalY;
 	}
 }
+
+void UlxUtilityLibrary::MapAllKeyboardKeysToOneInputAction(UInputMappingContext *IMC, UInputAction *Action)
+{
+    TArray<FKey> AllKeys;
+	EKeys::GetAllKeys(AllKeys);
+	
+    // Map every keyboard key to the provided LuaAction
+    for (const FKey& Key : AllKeys)
+    {
+		if ((Key.IsValid()) &&
+			(Key.IsBindableInBlueprints()) &&
+			(Key.GetMenuCategory() == EKeys::NAME_KeyboardCategory) &&
+			(!Key.IsModifierKey()))
+        {
+            IMC->MapKey(Action, Key);
+        }
+    }
+}

Source/Integration/UtilityLibrary.h

@@ -132,4 +132,13 @@ public:
 	UFUNCTION(BlueprintPure, Category="Widget")
 	static void GetPositionOfGridPanelMiddleCell(UGridPanel *GridPanel, FVector2D &UpperLeftXY, FVector2D &LowerRightXY);
 
+	// Create a mapping context that maps all keyboard keys to a single input action.
+	//
+	// This mapping context is usually meant to be used in conjunction with a
+	// hand-crafted mapping context, to act as a catch-all that catches all
+	// keys that aren't mapped in the hand-crafted mapping.
+	//
+	UFUNCTION(BlueprintCallable, Category="Input", meta=(WorldContext="WorldContextObject"))
+	static void MapAllKeyboardKeysToOneInputAction(UInputMappingContext *IMC, UInputAction *Action);
+
 };

luprex/lua/login.lua

@@ -21,11 +21,13 @@ end
 function cube.lookhotkeys(keys)
     keys:add("X", "Cube Hi", function () dprint("Cube Hi") end)
     keys:add("A", "Cube Bye", function () dprint("Cube Bye") end)
+    keys:add("Y", "Cube Yo", function () dprint("Cube Yo") end)
 end
 
 function sphere.lookhotkeys(keys)
     keys:add("X", "Sphere Hi", function () dprint("Sphere Hi") end)
     keys:add("A", "Sphere Bye", function () dprint("Sphere Bye") end)
+    keys:add("Y", "Sphere Yo", function () dprint("Sphere Yo") end)
 end