Merge

Config/DefaultEngine.ini

@@ -21,3 +21,63 @@ ConnectionType=USBOnly
 bUseManualIPAddress=False
 ManualIPAddress=
 
+[/Script/Engine.UserInterfaceSettings]
+UIScaleCurve=(EditorCurveData=(Keys=((Time=480.000000,Value=0.444000),(Time=720.000000,Value=0.666000),(Time=1080.000000,Value=1.000000),(Time=8640.000000,Value=8.000000)),DefaultValue=340282346638528859811704183484516925440.000000,PreInfinityExtrap=RCCE_Constant,PostInfinityExtrap=RCCE_Constant),ExternalCurve=None)
+
+[/Script/Engine.CollisionProfile]
+-Profiles=(Name="NoCollision",CollisionEnabled=NoCollision,ObjectTypeName="WorldStatic",CustomResponses=((Channel="Visibility",Response=ECR_Ignore),(Channel="Camera",Response=ECR_Ignore)),HelpMessage="No collision",bCanModify=False)
+-Profiles=(Name="BlockAll",CollisionEnabled=QueryAndPhysics,ObjectTypeName="WorldStatic",CustomResponses=,HelpMessage="WorldStatic object that blocks all actors by default. All new custom channels will use its own default response. ",bCanModify=False)
+-Profiles=(Name="OverlapAll",CollisionEnabled=QueryOnly,ObjectTypeName="WorldStatic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Overlap),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldStatic object that overlaps all actors by default. All new custom channels will use its own default response. ",bCanModify=False)
+-Profiles=(Name="BlockAllDynamic",CollisionEnabled=QueryAndPhysics,ObjectTypeName="WorldDynamic",CustomResponses=,HelpMessage="WorldDynamic object that blocks all actors by default. All new custom channels will use its own default response. ",bCanModify=False)
+-Profiles=(Name="OverlapAllDynamic",CollisionEnabled=QueryOnly,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Overlap),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldDynamic object that overlaps all actors by default. All new custom channels will use its own default response. ",bCanModify=False)
+-Profiles=(Name="IgnoreOnlyPawn",CollisionEnabled=QueryOnly,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="Pawn",Response=ECR_Ignore),(Channel="Vehicle",Response=ECR_Ignore)),HelpMessage="WorldDynamic object that ignores Pawn and Vehicle. All other channels will be set to default.",bCanModify=False)
+-Profiles=(Name="OverlapOnlyPawn",CollisionEnabled=QueryOnly,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="Pawn",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Ignore)),HelpMessage="WorldDynamic object that overlaps Pawn, Camera, and Vehicle. All other channels will be set to default. ",bCanModify=False)
+-Profiles=(Name="Pawn",CollisionEnabled=QueryAndPhysics,ObjectTypeName="Pawn",CustomResponses=((Channel="Visibility",Response=ECR_Ignore)),HelpMessage="Pawn object. Can be used for capsule of any playerable character or AI. ",bCanModify=False)
+-Profiles=(Name="Spectator",CollisionEnabled=QueryOnly,ObjectTypeName="Pawn",CustomResponses=((Channel="WorldStatic",Response=ECR_Block),(Channel="Pawn",Response=ECR_Ignore),(Channel="Visibility",Response=ECR_Ignore),(Channel="WorldDynamic",Response=ECR_Ignore),(Channel="Camera",Response=ECR_Ignore),(Channel="PhysicsBody",Response=ECR_Ignore),(Channel="Vehicle",Response=ECR_Ignore),(Channel="Destructible",Response=ECR_Ignore)),HelpMessage="Pawn object that ignores all other actors except WorldStatic.",bCanModify=False)
+-Profiles=(Name="CharacterMesh",CollisionEnabled=QueryOnly,ObjectTypeName="Pawn",CustomResponses=((Channel="Pawn",Response=ECR_Ignore),(Channel="Vehicle",Response=ECR_Ignore),(Channel="Visibility",Response=ECR_Ignore)),HelpMessage="Pawn object that is used for Character Mesh. All other channels will be set to default.",bCanModify=False)
+-Profiles=(Name="PhysicsActor",CollisionEnabled=QueryAndPhysics,ObjectTypeName="PhysicsBody",CustomResponses=,HelpMessage="Simulating actors",bCanModify=False)
+-Profiles=(Name="Destructible",CollisionEnabled=QueryAndPhysics,ObjectTypeName="Destructible",CustomResponses=,HelpMessage="Destructible actors",bCanModify=False)
+-Profiles=(Name="InvisibleWall",CollisionEnabled=QueryAndPhysics,ObjectTypeName="WorldStatic",CustomResponses=((Channel="Visibility",Response=ECR_Ignore)),HelpMessage="WorldStatic object that is invisible.",bCanModify=False)
+-Profiles=(Name="InvisibleWallDynamic",CollisionEnabled=QueryAndPhysics,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="Visibility",Response=ECR_Ignore)),HelpMessage="WorldDynamic object that is invisible.",bCanModify=False)
+-Profiles=(Name="Trigger",CollisionEnabled=QueryOnly,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Ignore),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldDynamic object that is used for trigger. All other channels will be set to default.",bCanModify=False)
+-Profiles=(Name="Ragdoll",CollisionEnabled=QueryAndPhysics,ObjectTypeName="PhysicsBody",CustomResponses=((Channel="Pawn",Response=ECR_Ignore),(Channel="Visibility",Response=ECR_Ignore)),HelpMessage="Simulating Skeletal Mesh Component. All other channels will be set to default.",bCanModify=False)
+-Profiles=(Name="Vehicle",CollisionEnabled=QueryAndPhysics,ObjectTypeName="Vehicle",CustomResponses=,HelpMessage="Vehicle object that blocks Vehicle, WorldStatic, and WorldDynamic. All other channels will be set to default.",bCanModify=False)
+-Profiles=(Name="UI",CollisionEnabled=QueryOnly,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Block),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldStatic object that overlaps all actors by default. All new custom channels will use its own default response. ",bCanModify=False)
++Profiles=(Name="NoCollision",CollisionEnabled=NoCollision,bCanModify=False,ObjectTypeName="WorldStatic",CustomResponses=((Channel="Visibility",Response=ECR_Ignore),(Channel="Camera",Response=ECR_Ignore)),HelpMessage="No collision")
++Profiles=(Name="BlockAll",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="WorldStatic",CustomResponses=,HelpMessage="WorldStatic object that blocks all actors by default. All new custom channels will use its own default response. ")
++Profiles=(Name="OverlapAll",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="WorldStatic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Overlap),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldStatic object that overlaps all actors by default. All new custom channels will use its own default response. ")
++Profiles=(Name="BlockAllDynamic",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="WorldDynamic",CustomResponses=,HelpMessage="WorldDynamic object that blocks all actors by default. All new custom channels will use its own default response. ")
++Profiles=(Name="OverlapAllDynamic",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Overlap),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldDynamic object that overlaps all actors by default. All new custom channels will use its own default response. ")
++Profiles=(Name="IgnoreOnlyPawn",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="Pawn",Response=ECR_Ignore),(Channel="Vehicle",Response=ECR_Ignore)),HelpMessage="WorldDynamic object that ignores Pawn and Vehicle. All other channels will be set to default.")
++Profiles=(Name="OverlapOnlyPawn",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="Pawn",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Ignore)),HelpMessage="WorldDynamic object that overlaps Pawn, Camera, and Vehicle. All other channels will be set to default. ")
++Profiles=(Name="Pawn",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="Pawn",CustomResponses=((Channel="Visibility",Response=ECR_Ignore)),HelpMessage="Pawn object. Can be used for capsule of any playerable character or AI. ")
++Profiles=(Name="Spectator",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="Pawn",CustomResponses=((Channel="WorldStatic"),(Channel="Pawn",Response=ECR_Ignore),(Channel="Visibility",Response=ECR_Ignore),(Channel="WorldDynamic",Response=ECR_Ignore),(Channel="Camera",Response=ECR_Ignore),(Channel="PhysicsBody",Response=ECR_Ignore),(Channel="Vehicle",Response=ECR_Ignore),(Channel="Destructible",Response=ECR_Ignore)),HelpMessage="Pawn object that ignores all other actors except WorldStatic.")
++Profiles=(Name="CharacterMesh",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="Pawn",CustomResponses=((Channel="Pawn",Response=ECR_Ignore),(Channel="Vehicle",Response=ECR_Ignore),(Channel="Visibility",Response=ECR_Ignore)),HelpMessage="Pawn object that is used for Character Mesh. All other channels will be set to default.")
++Profiles=(Name="PhysicsActor",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="PhysicsBody",CustomResponses=,HelpMessage="Simulating actors")
++Profiles=(Name="Destructible",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="Destructible",CustomResponses=,HelpMessage="Destructible actors")
++Profiles=(Name="InvisibleWall",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="WorldStatic",CustomResponses=((Channel="Visibility",Response=ECR_Ignore)),HelpMessage="WorldStatic object that is invisible.")
++Profiles=(Name="InvisibleWallDynamic",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="Visibility",Response=ECR_Ignore)),HelpMessage="WorldDynamic object that is invisible.")
++Profiles=(Name="Trigger",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Ignore),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldDynamic object that is used for trigger. All other channels will be set to default.")
++Profiles=(Name="Ragdoll",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="PhysicsBody",CustomResponses=((Channel="Pawn",Response=ECR_Ignore),(Channel="Visibility",Response=ECR_Ignore)),HelpMessage="Simulating Skeletal Mesh Component. All other channels will be set to default.")
++Profiles=(Name="Vehicle",CollisionEnabled=QueryAndPhysics,bCanModify=False,ObjectTypeName="Vehicle",CustomResponses=,HelpMessage="Vehicle object that blocks Vehicle, WorldStatic, and WorldDynamic. All other channels will be set to default.")
++Profiles=(Name="UI",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility"),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Camera",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="WorldStatic object that overlaps all actors by default. All new custom channels will use its own default response. ")
++DefaultChannelResponses=(Channel=ECC_GameTraceChannel1,DefaultResponse=ECR_Block,bTraceType=True,bStaticObject=False,Name="Clickable")
+-ProfileRedirects=(OldName="BlockingVolume",NewName="InvisibleWall")
+-ProfileRedirects=(OldName="InterpActor",NewName="IgnoreOnlyPawn")
+-ProfileRedirects=(OldName="StaticMeshComponent",NewName="BlockAllDynamic")
+-ProfileRedirects=(OldName="SkeletalMeshActor",NewName="PhysicsActor")
+-ProfileRedirects=(OldName="InvisibleActor",NewName="InvisibleWallDynamic")
++ProfileRedirects=(OldName="BlockingVolume",NewName="InvisibleWall")
++ProfileRedirects=(OldName="InterpActor",NewName="IgnoreOnlyPawn")
++ProfileRedirects=(OldName="StaticMeshComponent",NewName="BlockAllDynamic")
++ProfileRedirects=(OldName="SkeletalMeshActor",NewName="PhysicsActor")
++ProfileRedirects=(OldName="InvisibleActor",NewName="InvisibleWallDynamic")
+-CollisionChannelRedirects=(OldName="Static",NewName="WorldStatic")
+-CollisionChannelRedirects=(OldName="Dynamic",NewName="WorldDynamic")
+-CollisionChannelRedirects=(OldName="VehicleMovement",NewName="Vehicle")
+-CollisionChannelRedirects=(OldName="PawnMovement",NewName="Pawn")
++CollisionChannelRedirects=(OldName="Static",NewName="WorldStatic")
++CollisionChannelRedirects=(OldName="Dynamic",NewName="WorldDynamic")
++CollisionChannelRedirects=(OldName="VehicleMovement",NewName="Vehicle")
++CollisionChannelRedirects=(OldName="PawnMovement",NewName="Pawn")
+

EnginePatches/EnginePatch

@@ -1,3 +1,28 @@
+diff --git a/Engine/Extras/LLDBDataFormatters/UEDataFormatters_2ByteChars.py b/Engine/Extras/LLDBDataFormatters/UEDataFormatters_2ByteChars.py
+index f56f5ea9cac4..ff1c4030b38f 100644
+--- a/Engine/Extras/LLDBDataFormatters/UEDataFormatters_2ByteChars.py
++++ b/Engine/Extras/LLDBDataFormatters/UEDataFormatters_2ByteChars.py
+@@ -32,7 +32,7 @@ def UETCharSummaryProvider(valobj,dict):
+         if DataVal == 0:
+             Val = 'NULL'
+         else:
+-            Expr = '(char16_t*)(%s)' % Data
++            Expr = '(char16_t*)(%s)' % DataVal
+             ValRef = valobj.CreateValueFromExpression('string', Expr)
+             Val = ValRef.GetSummary()
+     elif Type.IsReferenceType():
+@@ -47,6 +47,11 @@ def UETCharSummaryProvider(valobj,dict):
+             Expr = '(char16_t*)(%s)' % valobj.GetAddress()
+             ValRef = valobj.CreateValueFromExpression('string', Expr)
+             Val = ValRef.GetSummary()
++    else:
++        DataVal = valobj.GetValueAsUnsigned(0)
++        Expr = '(char16_t)(%s)' % DataVal
++        ValRef = valobj.CreateValueFromExpression('string', Expr)
++        Val = ValRef.GetSummary()
+     return Val
+ 	
+ def UESignedCharSummaryProvider(valobj,dict):
 diff --git a/Engine/Source/Runtime/ApplicationCore/Private/Linux/LinuxPlatformApplicationMisc.cpp b/Engine/Source/Runtime/ApplicationCore/Private/Linux/LinuxPlatformApplicationMisc.cpp
 index ca5f4b5fb5ff..a436a624d5b7 100644
 --- a/Engine/Source/Runtime/ApplicationCore/Private/Linux/LinuxPlatformApplicationMisc.cpp

Source/Integration/AnimQueue.cpp

@@ -81,8 +81,9 @@ void UlxAnimationStepLibrary::UnpackAnimationStep(bool &bChanged, FString &Actio
 	bChanged = false;
 	Action = TEXT("");
 
-	if (prefix.IsEmpty()) {
-		UlxUtilityLibrary::Assert(false, TEXT("You may not pass an empty string for prefix"));
+	if (prefix.IsEmpty())
+	{
+		UE_LOG(LogBlueprint, Error, TEXT("UnpackAnimationStep: You may not pass an empty string for prefix"));
 		return;
 	}
 
@@ -92,8 +93,7 @@ void UlxAnimationStepLibrary::UnpackAnimationStep(bool &bChanged, FString &Actio
 
 	FStructProperty* stepproperty = FindAnimationStepProperty(uclass, prefix);
 	if (stepproperty == nullptr) {
-		UE_LOG(LogBlueprint, Error, TEXT("Target object: %s  Prefix: %s"), *(target->GetName()), *prefix);
-		UlxUtilityLibrary::Assert(false, TEXT("Target object does not have an variable named '<prefix> Animation Step'"));
+		UE_LOG(LogBlueprint, Error, TEXT("UnpackAnimationStep: Target object does not have a variable named: '%s Animation Step'"), *prefix);
 		return;
 	}
 

Source/Integration/AnimQueue.h

@@ -16,7 +16,7 @@
 //
 ////////////////////////////////////////////////
 
-USTRUCT(Blueprintable)
+USTRUCT(BlueprintType)
 struct INTEGRATION_API FlxAnimationStep {
 	GENERATED_BODY()
 

Source/Integration/BlueprintErrors.cpp

@@ -0,0 +1,137 @@
+
+#include "BlueprintErrors.h"
+#include "Internationalization/TextFormatter.h"
+#include "Kismet/KismetSystemLibrary.h"
+#include "Kismet2/KismetDebugUtilities.h"
+
+#include "Kismet/KismetTextLibrary.h"
+
+ELogVerbosity::Type UlxBlueprintErrorLibrary::ConvertElxLogVerbosity(ElxLogVerbosity Verbosity) {
+	switch (Verbosity) {
+		case ElxLogVerbosity::Error:		return ELogVerbosity::Error;
+		case ElxLogVerbosity::Warning:		return ELogVerbosity::Warning;
+		case ElxLogVerbosity::Display:		return ELogVerbosity::Display;
+		case ElxLogVerbosity::Log:			return ELogVerbosity::Log;
+		case ElxLogVerbosity::Verbose:		return ELogVerbosity::Verbose;
+		case ElxLogVerbosity::VeryVerbose:	return ELogVerbosity::VeryVerbose;
+		case ElxLogVerbosity::Fatal:		return ELogVerbosity::Fatal;
+	}
+}
+
+void UlxBlueprintErrorLibrary::FormatErrorInternal(UObject *Context, ElxLogVerbosity Verbosity, ElxErrorDisplayDuration DisplayDuration, const FString &InPattern, TArray<FFormatArgumentData> InArgs)
+{
+	// Generate the formatted string.
+	//
+	FText InPatternText(FText::FromString(InPattern));
+	FText Message = FTextFormatter::Format(MoveTemp(InPatternText), MoveTemp(InArgs), false, false);
+	FString MessageString = Message.ToString();
+	
+	// Convert the DisplayDuration enum into a number of seconds.
+	//
+	int Seconds = int(DisplayDuration);
+	if (Seconds > 100) Seconds = (Seconds - 100) * 60;
+
+	// Choose a color appropriate to the verbosity level.
+	//
+	FLinearColor Color;
+	switch (Verbosity) {
+		case ElxLogVerbosity::Fatal   : Color = FLinearColor(1.0, 0.6, 0.6); break;
+		case ElxLogVerbosity::Error   : Color = FLinearColor(1.0, 0.6, 0.6); break;
+		case ElxLogVerbosity::Warning : Color = FLinearColor(0.9, 0.9, 0.6); break;
+		default: Color = FLinearColor(0.8, 0.8, 0.8); break;
+	}
+
+	// Get the blueprint name.
+	//
+	// Normally, the log function expects you to pass in a filename, and a log
+	// category name.  We use the blueprint name for both.
+	//
+	// Using the blueprint name as a log category name is not technically
+	// correct.  However, there is no correct way to create log categories
+	// from inside of blueprints.  Doing it this way at least produces a reasonable
+	// message inside the log.  What doesn't work correctly is the log message
+	// suppression system.  Ie, console commands like 'log <category> verbose'
+	// don't have any effect here.  The design of the log message suppression
+	// system is such that there just is no reasonable way to hook into it from
+	// inside of blueprints.
+	//
+	FString BlueprintNameString = Context->GetClass()->GetName();
+	auto BlueprintNameAnsi = StringCast<ANSICHAR>(*BlueprintNameString);
+	FLogCategoryName BlueprintNameLogCategory(Context->GetClass()->GetFName());
+
+	// Output to Screen, if requested.
+	//
+	if (Seconds != 0)
+	{
+		UKismetSystemLibrary::PrintText(NULL, Message, true, false, Color, Seconds, NAME_None);
+	}
+
+	// Output to Log
+	//
+    ELogVerbosity::Type VerbosityValue = ConvertElxLogVerbosity(Verbosity);
+	if (VerbosityValue <= ELogVerbosity::COMPILED_IN_MINIMUM_VERBOSITY)
+	{
+		FMsg::Logf(BlueprintNameAnsi.Get(), 0, BlueprintNameLogCategory, VerbosityValue, TEXT("%s"), *MessageString);
+	}
+}
+
+
+FlxDebugBlueprintErrorsOutputDevice::FlxDebugBlueprintErrorsOutputDevice(const ElxLogVerbosity &SensitivityRef)
+    : Sensitivity(SensitivityRef)
+{
+	GLog->AddOutputDevice(this);
+}
+
+FlxDebugBlueprintErrorsOutputDevice::~FlxDebugBlueprintErrorsOutputDevice()
+{
+	GLog->RemoveOutputDevice(this);
+}
+
+namespace UBreakPoint {
+    static volatile int V;
+    FORCENOINLINE static void OnLogFatal() {
+        V = 0;
+    }
+    FORCENOINLINE static void OnLogError() {
+		V = 1;
+        OnLogFatal();
+	}
+    FORCENOINLINE static void OnLogWarning() {
+        V = 2;
+        OnLogError();
+    }
+}
+
+static const FName LogBlueprintDebugName(TEXT("LogBlueprintDebug"));
+
+
+void FlxDebugBlueprintErrorsOutputDevice::Serialize(const TCHAR* V, ELogVerbosity::Type Verbosity, const FName& Category)
+{
+    // If the error isn't serious enough, do nothing.
+    //
+    if (Verbosity > UlxBlueprintErrorLibrary::ConvertElxLogVerbosity(Sensitivity))
+    {
+        return;
+    }
+
+    // If the Category is LogBlueprintDebug, then we're inside the debugger already.
+    //
+    if (Category == LogBlueprintDebugName)
+    {
+        return;
+    }
+
+    // Find out if we're running in a blueprint thread.  If not, return.
+    //
+    FFrame* Frame = FFrame::GetThreadLocalTopStackFrame();
+    if (Frame == nullptr) return;
+    UObject *TopObject = Frame->Object;
+    if (TopObject == nullptr) return;
+
+    // Notify the debugger that there's been an exception.
+    //
+    FBlueprintExceptionInfo ExceptionInfo(EBlueprintExceptionType::Breakpoint, FText::FromStringView(FStringView(V)));
+    FBlueprintCoreDelegates::ThrowScriptException(TopObject, *Frame, ExceptionInfo);
+}
+
+

Source/Integration/BlueprintErrors.h

@@ -0,0 +1,181 @@
+//
+// BlueprintErrors: Better error handling for blueprint errors.
+//
+
+#pragma once
+
+#include "Containers/Array.h"
+#include "CoreMinimal.h"
+#include "HAL/Platform.h"
+#include "Misc/OutputDeviceError.h"
+#include "UObject/NameTypes.h"
+#include "UObject/ObjectMacros.h"
+#include "UObject/UObjectGlobals.h"
+
+#include "BlueprintErrors.generated.h"
+
+/* 
+ * enum class ElxLogVerbosity, below, contains all the same error severity levels
+ * as ELogVerbosity, but in a form that the blueprint editor can manipulate.
+ *
+ * We deliberately moved 'Fatal' to the end of the list, and made 'Error' option 0.
+ * We did that because we want the editor to default to 'Error' in most cases.
+ * Unfortunately, that means the numeric values of the two enums don't match up,
+ * so we will need a conversion function.
+ * 
+ */
+
+
+/** Log Verbosity: The importance of an error message, which affects which logs the error
+ *  message gets written to, and how that message gets filtered.
+ * 
+ */
+UENUM(BlueprintType)
+enum class ElxLogVerbosity : uint8 {
+
+	/* Prints an error to the console and log file. The editor collects and reports errors. */
+	Error,
+
+	/* Prints a warning to the console and log file. The editor collects and report warnings. */
+	Warning,
+
+	/* Prints a message to the console and log file. */
+	Display,
+
+	/* Prints a message to the log file, however, it does not print to the console. */
+	Log,
+
+	/* Prints a message to a log file only if Verbose logging is enabled for the given category. This is usually used for detailed logging. */
+	Verbose,
+
+	/* Prints a message to a log file. If VeryVerbose logging is enabled, then this is used for detailed logging that would otherwise spam output. */
+	VeryVerbose,
+
+	/* Danger! Prints a fatal error to the console and log file, then crashes (this crashes the editor too). */
+	Fatal,
+};
+
+
+/** Display Duration: How long to display an error message in the game's viewport.
+ *
+ */
+UENUM(BlueprintType)
+enum class ElxErrorDisplayDuration : uint8 {
+
+	/* Do not display the message in the viewport */
+	No_Show  = 0,
+
+	/* Display the message in the viewport for 1 seconds */
+	Show_1_Seconds  = 1,
+
+	/* Display the message in the viewport for 2 seconds */
+	Show_2_Seconds  = 2,
+
+	/* Display the message in the viewport for 3 seconds */
+	Show_3_Seconds  = 3,
+
+	/* Display the message in the viewport for 4 seconds */
+	Show_4_Seconds  = 4,
+
+	/* Display the message in the viewport for 5 seconds */
+	Show_5_Seconds  = 5,
+
+	/* Display the message in the viewport for 10 seconds */
+	Show_10_Seconds = 10,
+
+	/* Display the message in the viewport for 20 seconds */
+	Show_20_Seconds = 20,
+
+	/* Display the message in the viewport for 30 seconds */
+	Show_30_Seconds = 30,
+
+	/* Display the message in the viewport for 40 seconds */
+	Show_40_Seconds = 40,
+
+	/* Display the message in the viewport for 50 seconds */
+	Show_50_Seconds = 50,
+
+	/* Display the message in the viewport for 60 seconds */
+	Show_60_Seconds = 60,
+
+	/* Display the message in the viewport for 70 seconds */
+	Show_70_Seconds = 70,
+
+	/* Display the message in the viewport for 80 seconds */
+	Show_80_Seconds = 80,
+
+	/* Display the message in the viewport for 90 seconds */
+	Show_90_Seconds = 90,
+
+	/* Display the message in the viewport for 1 minutes */
+	Show_1_Minutes  = 101,
+
+	/* Display the message in the viewport for 2 minutes */
+	Show_2_Minutes  = 102,
+
+	/* Display the message in the viewport for 3 minutes */
+	Show_3_Minutes  = 103,
+
+	/* Display the message in the viewport for 4 minutes */
+	Show_4_Minutes  = 104,
+
+	/* Display the message in the viewport for 5 minutes */
+	Show_5_Minutes  = 105,
+};
+
+/* A library containing assorted useful functions for blueprint error handling.
+ *
+ */
+UCLASS(MinimalAPI)
+class UlxBlueprintErrorLibrary : public UBlueprintFunctionLibrary
+{
+	GENERATED_BODY()
+
+public:
+    // The Format Error Message blueprint node macroexpands, the following
+    // function is the core of the expansion.  The actual K2Node itself is in
+    // its own source file.
+    //
+	UFUNCTION(BlueprintCallable, meta=(WorldContext = "Context", BlueprintInternalUseOnly = "true"))
+	static void FormatErrorInternal(UObject *Context, ElxLogVerbosity Verbosity, ElxErrorDisplayDuration DisplayDuration, const FString &InPattern, TArray<FFormatArgumentData> InArgs);
+
+    // Convert an ElxLogVerbosity to an ELogVerbosity::Type
+    //
+    static ELogVerbosity::Type ConvertElxLogVerbosity(ElxLogVerbosity Verbosity);
+};
+
+/* Debug Blueprint Errors output device. 
+ *
+ * When an error message gets written to the log, using "Format Error Message,"
+ * or any other means that writes an error message to the log,
+ * we can optionally notify the blueprint debugger to pause execution.
+ * This only affects errors that are generated during blueprint execution.
+ * Errors in other threads do not pause the blueprint.
+ *
+ */
+struct FlxDebugBlueprintErrorsOutputDevice : public FOutputDevice
+{
+public:
+    // The constructor and destructor automatically register this output device with GLog.
+    //
+    // This struct doesn't store the sensitivity threshold.  It relies on some blueprint
+    // class to do that, so that the threshold can be easily edited with the blueprint
+    // editor.  This struct must be initialized with a reference to the threshold variable.
+    //
+    FlxDebugBlueprintErrorsOutputDevice(const ElxLogVerbosity &SensitivityRef);
+    ~FlxDebugBlueprintErrorsOutputDevice();
+
+    // Inspect a log message.
+    //
+    INTEGRATION_API virtual void Serialize(const TCHAR* V, ELogVerbosity::Type Verbosity, const FName& Category) override;
+
+    // If the device is marked 'CanBeUsedOnMultipleThreads,' then UE_LOG will
+    // call Serialize from the current thread, otherwise, it will call Serialize from
+    // the logging thread.  Using the logging thread would defeat the purpose of this
+    // device, so it's imperative that we set this flag.
+    //
+    INTEGRATION_API virtual bool CanBeUsedOnMultipleThreads() const override { return true; }
+
+private:
+    const ElxLogVerbosity &Sensitivity;
+};

Source/Integration/FormatError.cpp

@@ -15,12 +15,10 @@
 #include "Engine/Blueprint.h"
 #include "HAL/PlatformCrt.h"
 #include "Internationalization/Internationalization.h"
-#include "Internationalization/TextFormatter.h"
 #include "K2Node_CallFunction.h"
 #include "K2Node_MakeArray.h"
 #include "K2Node_MakeStruct.h"
 #include "Kismet/KismetMathLibrary.h"
-#include "Kismet/KismetSystemLibrary.h"
 #include "Kismet/KismetTextLibrary.h"
 #include "Kismet2/BlueprintEditorUtils.h"
 #include "Kismet2/CompilerResultsLog.h"
@@ -104,8 +102,8 @@ void UK2Node_FormatError::CreateCorrectPins()
 	}
 
 	if (FindPin(FormatPinName, EGPD_Input) == nullptr) {
-		UEdGraphPin *P = CreatePin(EGPD_Input, UEdGraphSchema_K2::PC_Text, FormatPinName);
-		P->DefaultTextValue = LOCTEXT("FormatErrorMessage_DefaultMessage", "Error Message");
+		UEdGraphPin *P = CreatePin(EGPD_Input, UEdGraphSchema_K2::PC_String, FormatPinName);
+		P->DefaultValue = TEXT("Error Message");
 	}
 
 	if (FindPin(VerbosityPinName, EGPD_Input) == nullptr) {
@@ -115,7 +113,7 @@ void UK2Node_FormatError::CreateCorrectPins()
 	}
 
 	if (FindPin(DisplayDurationPinName, EGPD_Input) == nullptr) {
-		UEdGraphPin *P = CreatePin(EGPD_Input, UEdGraphSchema_K2::PC_Byte, StaticEnum<ElxDisplayDuration>(), DisplayDurationPinName);
+		UEdGraphPin *P = CreatePin(EGPD_Input, UEdGraphSchema_K2::PC_Byte, StaticEnum<ElxErrorDisplayDuration>(), DisplayDurationPinName);
 		P->DefaultValue = TEXT("No_Display");
 		P->AutogeneratedDefaultValue = P->DefaultValue;
 	}
@@ -252,7 +250,7 @@ void UK2Node_FormatError::PinDefaultValueChanged(UEdGraphPin* Pin)
 	if(IsFormatPin(Pin))
 	{
 		PinNames.Empty();
-		FText::GetFormatPatternParameters(Pin->DefaultTextValue, PinNames);
+		FText::GetFormatPatternParameters(FText::FromString(Pin->DefaultValue), PinNames);
 		CreateCorrectPins();
 		GetGraph()->NotifyNodeChanged(this);
 	}
@@ -318,7 +316,7 @@ void UK2Node_FormatError::ExpandNode(class FKismetCompilerContext& CompilerConte
 
 	// This is the node that does all the Format work and outputs the message.
 	UK2Node_CallFunction* CallFormatFunction = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
-	UFunction *FormatFunction = UlxFormatErrorLibrary::StaticClass()->FindFunctionByName(GET_MEMBER_NAME_CHECKED(UlxFormatErrorLibrary, FormatErrorInternal));
+	UFunction *FormatFunction = UlxBlueprintErrorLibrary::StaticClass()->FindFunctionByName(GET_MEMBER_NAME_CHECKED(UlxBlueprintErrorLibrary, FormatErrorInternal));
 	CallFormatFunction->SetFromFunction(FormatFunction);
 	CallFormatFunction->AllocateDefaultPins();
 	CompilerContext.MessageLog.NotifyIntermediateObjectCreation(CallFormatFunction, this);
@@ -608,71 +606,5 @@ FText UK2Node_FormatError::GetMenuCategory() const
 	return FEditorCategoryUtils::GetCommonCategory(FCommonEditorCategory::Text);
 }
 
-void UlxFormatErrorLibrary::FormatErrorInternal(UObject *Context, ElxLogVerbosity Verbosity, ElxDisplayDuration DisplayDuration, FText InPattern, TArray<FFormatArgumentData> InArgs)
-{
-	// Generate the formatted string.
-	//
-	FText Message = FTextFormatter::Format(MoveTemp(InPattern), MoveTemp(InArgs), false, false);
-	FString MessageString = Message.ToString();
-	
-	// Convert the DisplayDuration enum into a number of seconds.
-	//
-	int Seconds = int(DisplayDuration);
-	if (Seconds > 100) Seconds = (Seconds - 100) * 60;
-
-	// Choose a color appropriate to the verbosity level.
-	//
-	FLinearColor Color;
-	switch (Verbosity) {
-		case ElxLogVerbosity::Fatal   : Color = FLinearColor(1.0, 0.6, 0.6); break;
-		case ElxLogVerbosity::Error   : Color = FLinearColor(1.0, 0.6, 0.6); break;
-		case ElxLogVerbosity::Warning : Color = FLinearColor(0.9, 0.9, 0.6); break;
-		default: Color = FLinearColor(0.8, 0.8, 0.8); break;
-	}
-
-	// Convert verbosity to an internal value.
-	//
-	ELogVerbosity::Type VerbosityValue;
-	switch (Verbosity) {
-		case ElxLogVerbosity::Error:		VerbosityValue = ELogVerbosity::Error; 			break;
-		case ElxLogVerbosity::Warning:		VerbosityValue = ELogVerbosity::Warning; 		break;
-		case ElxLogVerbosity::Display:		VerbosityValue = ELogVerbosity::Display; 		break;
-		case ElxLogVerbosity::Log:			VerbosityValue = ELogVerbosity::Log; 			break;
-		case ElxLogVerbosity::Verbose:		VerbosityValue = ELogVerbosity::Verbose; 		break;
-		case ElxLogVerbosity::VeryVerbose:	VerbosityValue = ELogVerbosity::VeryVerbose; 	break;
-		case ElxLogVerbosity::Fatal:		VerbosityValue = ELogVerbosity::Fatal; 			break;
-	}
-
-	// Get the blueprint name.
-	//
-	// Normally, the log function expects you to pass in a filename, and a log
-	// category name.  We use the blueprint name for both.
-	//
-	// Using the blueprint name as a log category name is not technically
-	// correct.  However, there is no correct way to create log categories
-	// from inside of blueprints.  Doing it this way at least produces a reasonable
-	// message inside the log.  What doesn't work correctly is the log message
-	// suppression system.  Ie, console commands like 'log <category> verbose'
-	// don't have any effect here.  The design of the log message suppression
-	// system is such that there just is no reasonable way to hook into it from
-	// inside of blueprints.
-	//
-	FString BlueprintNameString = Context->GetClass()->GetName();
-	auto BlueprintNameAnsi = StringCast<ANSICHAR>(*BlueprintNameString);
-	FLogCategoryName BlueprintNameLogCategory(Context->GetClass()->GetFName());
-
-
-	// Output to Screen, if requested.
-	//
-	if (Seconds != 0)
-	{
-		UKismetSystemLibrary::PrintText(NULL, Message, true, false, Color, Seconds, NAME_None);
-	}
-
-	// Output to Log
-	//
-	FMsg::Logf(BlueprintNameAnsi.Get(), 0, BlueprintNameLogCategory, VerbosityValue, TEXT("%s"), *MessageString);
-}
-
 
 #undef LOCTEXT_NAMESPACE

Source/Integration/FormatError.h

@@ -2,6 +2,7 @@
 
 #pragma once
 
+#include "BlueprintErrors.h"
 #include "Containers/Array.h"
 #include "CoreMinimal.h"
 #include "EdGraph/EdGraphNode.h"
@@ -12,6 +13,7 @@
 #include "UObject/NameTypes.h"
 #include "UObject/ObjectMacros.h"
 #include "UObject/UObjectGlobals.h"
+#include "BlueprintErrors.h"
 
 #include "FormatError.generated.h"
 
@@ -23,121 +25,6 @@ class UObject;
 
 
 
-//
-// The following UENUM contains all the ELogVerbosity levels, in a form
-// that the blueprint editor can manipulate.
-//
-// We deliberately moved Fatal to the end of the list,  because the editor
-// will display these values in the order shown here, and we want Error to
-// be the value that is 'promoted', and we want Fatal to be buried as a
-// rarely-used option.
-//
-
-/** Log Verbosity: The importance of the message, which affects where the message goes and how it is filtered. */
-UENUM(BlueprintType)
-enum class ElxLogVerbosity : uint8 {
-
-	/* Prints an error to the console and log file. The editor collects and reports errors. */
-	Error,
-
-	/* Prints a warning to the console and log file. The editor collects and report warnings. */
-	Warning,
-
-	/* Prints a message to the console and log file. */
-	Display,
-
-	/* Prints a message to the log file, however, it does not print to the console. */
-	Log,
-
-	/* Prints a message to a log file only if Verbose logging is enabled for the given category. This is usually used for detailed logging. */
-	Verbose,
-
-	/* Prints a message to a log file. If VeryVerbose logging is enabled, then this is used for detailed logging that would otherwise spam output. */
-	VeryVerbose,
-
-	/* Danger! Prints a fatal error to the console and log file, then crashes (this crashes the editor too). */
-	Fatal,
-};
-
-/** Display Duration: How long to display a message in the game's viewport */
-UENUM(BlueprintType)
-enum class ElxDisplayDuration : uint8 {
-
-	/* Do not display the message in the viewport */
-	No_Display_in_Viewport  = 0,
-
-	/* Display the message in the viewport for 1 second */
-	Display_1_Seconds  = 1,
-
-	/* Display the message in the viewport for 2 second */
-	Display_2_Seconds  = 2,
-
-	/* Display the message in the viewport for 3 second */
-	Display_3_Seconds  = 3,
-
-	/* Display the message in the viewport for 4 second */
-	Display_4_Seconds  = 4,
-
-	/* Display the message in the viewport for 5 second */
-	Display_5_Seconds  = 5,
-
-	/* Display the message in the viewport for 10 second */
-	Display_10_Seconds = 10,
-
-	/* Display the message in the viewport for 20 second */
-	Display_20_Seconds = 20,
-
-	/* Display the message in the viewport for 30 second */
-	Display_30_Seconds = 30,
-
-	/* Display the message in the viewport for 1 second */
-	Display_40_Seconds = 40,
-
-	/* Display the message in the viewport for 1 second */
-	Display_50_Seconds = 50,
-
-	/* Display the message in the viewport for 1 second */
-	Display_60_Seconds = 60,
-
-	/* Display the message in the viewport for 1 second */
-	Display_70_Seconds = 70,
-
-	/* Display the message in the viewport for 1 second */
-	Display_80_Seconds = 80,
-
-	/* Display the message in the viewport for 1 second */
-	Display_90_Seconds = 90,
-
-	/* Display the message in the viewport for 1 second */
-	Display_1_Minute   = 101,
-
-	/* Display the message in the viewport for 1 second */
-	Display_2_Minutes  = 102,
-
-	/* Display the message in the viewport for 1 second */
-	Display_3_Minutes  = 103,
-
-	/* Display the message in the viewport for 1 second */
-	Display_4_Minutes  = 104,
-
-	/* Display the message in the viewport for 1 second */
-	Display_5_Minutes  = 105,
-};
-
-//
-// Library functions used by Format Error Message.
-//
-UCLASS(MinimalAPI)
-class UlxFormatErrorLibrary : public UBlueprintFunctionLibrary
-{
-	GENERATED_BODY()
-
-public:
-	UFUNCTION(BlueprintCallable, meta=(WorldContext = "Context", BlueprintInternalUseOnly = "true"))
-	static void FormatErrorInternal(UObject *Context, ElxLogVerbosity Verbosity, ElxDisplayDuration DisplayDuration, FText InPattern, TArray<FFormatArgumentData> InArgs);
-};
-
-
 //
 // The Format Error Message K2Node.
 //

Source/Integration/IntegrationGameModeBase.cpp

@@ -77,6 +77,9 @@ void AIntegrationGameModeBase::ResetToInitialState()
 		w->release(w.Get());
 	}
 
+	// Stop trapping log errors to the debugger.
+	BreakToDebuggerLogVerbosityDevice.Reset();
+
 	// Clear the lua call assembly buffer.
 	LuaCallBuffer.clear();
 
@@ -84,8 +87,8 @@ void AIntegrationGameModeBase::ResetToInitialState()
 	PlayerId = 0;
 
 	// Clear the look-at state;
-	PreviousLookAt = nullptr;
-	CurrentLookAt = nullptr;
+	PreviousLookAt.Init();
+	CurrentLookAt.Init();
 	
 	// Reset the clocks.
 	EngineSeconds = 0.0;
@@ -316,6 +319,10 @@ void AIntegrationGameModeBase::BeginPlay()
 	// Initialize the tangible manager.
 	TangibleManager = NewObject<UlxTangibleManager>();
 	TangibleManager->Init(GetWorld(), this);
+
+	// If somebody generates a log message that's severe enough, break to debugger.
+	BreakToDebuggerLogVerbosityDevice.Reset(
+		new FlxDebugBlueprintErrorsOutputDevice(BreakToDebuggerLogVerbosity));
 }
 
 void AIntegrationGameModeBase::EndPlay(const EEndPlayReason::Type EndPlayReason)
@@ -342,7 +349,7 @@ AIntegrationGameModeBase *AIntegrationGameModeBase::GetFromContext(UObject *cont
 void AIntegrationGameModeBase::UpdateLookAt() {
 	// Rotate the variables.
 	PreviousLookAt = CurrentLookAt;
-	CurrentLookAt = nullptr;
+	CurrentLookAt.Init();
 	
 	// Make sure the world is fully configured before we attempt to cast rays.
     UlxTangible *possessed = TangibleManager->GetPossessedTangible();

Source/Integration/IntegrationGameModeBase.h

@@ -10,6 +10,7 @@
 #include "TangibleManager.h"
 #include "LuprexSockets.h"
 #include "TriggeredTask.h"
+#include "BlueprintErrors.h"
 #include "IntegrationGameModeBase.generated.h"
 
 
@@ -46,13 +47,13 @@ public:
 	int64 GetPlayerId();
 
 	UFUNCTION(BlueprintCallable, Category = "Luprex|Look-At Detection")
-	void SetLookAt(AActor *actor) { CurrentLookAt = actor; }
+	void SetLookAt(const FHitResult &hit) { CurrentLookAt = hit; }
 
 	UFUNCTION(BlueprintCallable, Category = "Luprex|Look-At Detection")
-	AActor *GetLookAt() const { return CurrentLookAt; }
+	const FHitResult &GetLookAt() const { return CurrentLookAt; }
 
 	UFUNCTION(BlueprintCallable, Category = "Luprex|Look-At Detection")
-	bool LookAtChanged() const { return CurrentLookAt != PreviousLookAt; }
+	bool LookAtChanged() const { return CurrentLookAt.HitObjectHandle != PreviousLookAt.HitObjectHandle; }
 
 	UFUNCTION(BlueprintImplementableEvent, Category = "Luprex|Look-At Detection")
 	void CalculateLookAt(AActor *Player, APlayerController *PlayerController, APlayerCameraManager *Camera);
@@ -110,13 +111,17 @@ public:
 	UPROPERTY()
 	UlxTangibleManager *TangibleManager;
 
-	// The actor that the player is looking at, previous frame.
+	// The actor that the player was looking at, previous frame.
 	UPROPERTY()
-	AActor *PreviousLookAt;
+	FHitResult PreviousLookAt;
 
 	// The actor that the player is looking at, current frame.
 	UPROPERTY()
-	AActor *CurrentLookAt;
+	FHitResult CurrentLookAt;
+
+	// The sensitivity level at which a log message triggers a debugger breakpoint.
+	UPROPERTY(EditAnywhere, Category="Debugging Tools")
+	ElxLogVerbosity BreakToDebuggerLogVerbosity;
 
 	// This stores the entire text currently visible in the console.
 	FlxConsoleOutput ConsoleOutput;
@@ -150,4 +155,7 @@ public:
 	// These allow us to pre-tick and post-tick.
 	FDelegateHandle OnWorldPreActorTickHandle;
 	FDelegateHandle OnWorldPostActorTickHandle;
+
+	// The device that implements BreakToDebuggerLogVerbosity, above.
+	TUniquePtr<FlxDebugBlueprintErrorsOutputDevice> BreakToDebuggerLogVerbosityDevice;
 };

Source/Integration/UtilityLibrary.cpp

@@ -4,24 +4,17 @@
 #include "UtilityLibrary.h"
 #include "GameFramework/PlayerController.h"
 #include "EnhancedInputSubsystems.h"
+#include "Kismet/KismetSystemLibrary.h"
+#include "Kismet/GameplayStatics.h"
+
 
 #define LOCTEXT_NAMESPACE "Luprex Utility"
 
-void UlxUtilityLibrary::Assert(bool condition, const FString &message) {
-	if (!condition) {
-		FBlueprintExceptionInfo ExceptionInfo(EBlueprintExceptionType::FatalError, FText::FromString(message));
-		FBlueprintCoreDelegates::ThrowScriptException(FFrame::GetThreadLocalTopStackFrame()->Object, *FFrame::GetThreadLocalTopStackFrame(), ExceptionInfo);
-	}
-}
 
 void UlxUtilityLibrary::CallFunctionByName(UObject *object, const FString &namepart1, const FString &namepart2, const FString &fallback, bool bFailIfNotFound) {
 	FString fullname = namepart1 + namepart2;
     if (!IsValid(object)) {
-		const FBlueprintExceptionInfo ExceptionInfo(
-			EBlueprintExceptionType::FatalError,
-			LOCTEXT("CallFunctionByName_ObjectIsNotValid", "In CallFunctionByName, object passed in is not valid.")
-		);
-		FBlueprintCoreDelegates::ThrowScriptException(FFrame::GetThreadLocalTopStackFrame()->Object, *FFrame::GetThreadLocalTopStackFrame(), ExceptionInfo);
+		UE_LOG(LogBlueprint, Error, TEXT("In CallFunctionByName, object passed in is not valid."));
 		return;
 	}
 	UFunction* function = object->FindFunction(FName(*fullname));
@@ -31,20 +24,12 @@ void UlxUtilityLibrary::CallFunctionByName(UObject *object, const FString &namep
             if (!bFailIfNotFound) {
                 return;
             }
-			const FBlueprintExceptionInfo ExceptionInfo(
-				EBlueprintExceptionType::FatalError,
-				LOCTEXT("CallFunctionByName_NoSuchFunction", "In CallFunctionByName, cannot find the named function or the fallback function.")
-			);
-			FBlueprintCoreDelegates::ThrowScriptException(FFrame::GetThreadLocalTopStackFrame()->Object, *FFrame::GetThreadLocalTopStackFrame(), ExceptionInfo);
+			UE_LOG(LogBlueprint, Error, TEXT("In CallFunctionByName, cannot find the named function or the fallback function"));
 			return;
 		}
 	}
 	if (function->ParmsSize != 0) {
-		const FBlueprintExceptionInfo ExceptionInfo(
-			EBlueprintExceptionType::FatalError,
-			LOCTEXT("CallFunctionByName_FunctionHasParameters", "CallFunctionByName can only call functions that have no parameters and no return values.")
-		);
-		FBlueprintCoreDelegates::ThrowScriptException(FFrame::GetThreadLocalTopStackFrame()->Object, *FFrame::GetThreadLocalTopStackFrame(), ExceptionInfo);
+		UE_LOG(LogBlueprint, Error, TEXT("CallFunctionByName can only call functions that have no parameters and no return values"));
 		return;
 	}
 	object->ProcessEvent(function, nullptr);
@@ -91,3 +76,45 @@ UEnhancedInputLocalPlayerSubsystem *UlxUtilityLibrary::GetEnhancedInputLocalPlay
 	}
 	return nullptr;
 }
+
+bool UlxUtilityLibrary::LineTraceThroughPixel(const APlayerController* PlayerController, 
+	FVector2D PixelXY, double MaxDistanceFromCamera,
+	ETraceTypeQuery TraceChannel, bool bTraceComplex, EDrawDebugTrace::Type DrawDebugType, bool bIgnorePlayerPawn,
+	const TArray<AActor*>& ActorsToIgnore, FHitResult& HitResult)
+{
+	const FLinearColor TraceColor = FLinearColor::Red;
+	const FLinearColor TraceHitColor = FLinearColor::Green;
+	const double DrawTime = 1.0;
+
+	// Zero out the return values.
+	HitResult.Init();
+
+	// Sanity check the distance.
+	if (MaxDistanceFromCamera <= 0.0)
+	{
+		return false;
+	}
+
+	// Make sure there's a player pawn.
+	AActor *PlayerPawn = PlayerController->GetPawn();
+	if (!PlayerPawn) return false;
+
+	// Calculate the trace start and trace end positions in world space.
+	FVector WorldStart, WorldDirection, WorldEnd;
+	if (!UGameplayStatics::DeprojectScreenToWorld(PlayerController, PixelXY, WorldStart, WorldDirection))
+	{
+		return false;
+	}
+	WorldEnd = WorldStart + (WorldDirection * MaxDistanceFromCamera);
+
+	// Find the hit.
+	if (UKismetSystemLibrary::LineTraceSingle(PlayerPawn, WorldStart, WorldEnd, TraceChannel, bTraceComplex,
+		ActorsToIgnore, DrawDebugType, HitResult, bIgnorePlayerPawn, TraceColor, TraceHitColor, DrawTime))
+	{
+		return true;
+	}
+
+	// Fail.
+	HitResult.Init();
+	return false;
+}