Exemple #1
0
void ATheHUD::DrawHUD()
{
  // Canvas is only initialized here.
  Super::DrawHUD();
  InitWidgets();
  RenderPortrait();
  
  // Render the minimap, only if the floor is present
  FBox box = Game->flycam->floor->GetBox();
  FVector lookPt = box.GetCenter();
  RenderScreen( rendererMinimap, lookPt, box.GetExtent().GetMax(), FVector( 0, 0, -1 ) );

  ui->SetSize( FVector2D( Canvas->SizeX, Canvas->SizeY ) );
  ui->Update( Game->gm->T ); // Ticked here, in case reflow is needed
  ui->render();

  // Overlay the lines for the minimap's view.
  vector< FVector2D > pts = ui->gameChrome->rightPanel->minimap->pts;
  for( int i = 0; i < pts.size()-1; i++ )
  {
    Canvas->K2_DrawLine( pts[i], pts[i+1], 2.f, FLinearColor::Green );
  }
  if( pts.size() > 1 )
  {
    Canvas->K2_DrawLine( pts[ pts.size()-1 ], pts[ 0 ], 2.f, FLinearColor::Green );
  }
}
void ASpacePartioner::Initialize(const float& inExtent, const bool& inDrawDebugInfo)
{
	bInitialized = true;
	bDrawDebugInfo = inDrawDebugInfo;

	// The Extent is very similar to the radius of a circle
	FVector min = FVector(-inExtent, -inExtent, -inExtent);
	FVector max = FVector(inExtent, inExtent, inExtent);
	FBox NewBounds = FBox(min, max);
	OctreeData = new FSimpleOctree(NewBounds.GetCenter(), NewBounds.GetExtent().GetMax()); // const FVector & InOrigin, float InExtent
}
void AStrategyHUD::DrawHealthBar(AActor* ForActor, float HealthPercentage, int32 BarHeight, int32 OffsetY) const
{
	FBox BB = ForActor->GetComponentsBoundingBox();
	FVector Center = BB.GetCenter();
	FVector Extent = BB.GetExtent();
	FVector2D Center2D = FVector2D(Canvas->Project(FVector(Center.X,Center.Y,Center.Z + Extent.Z)));
	float ActorExtent = 40;
	if (Cast<APawn>(ForActor) != NULL)
	{
		AStrategyChar* StrategyChar = Cast<AStrategyChar>(ForActor);
		if( ( StrategyChar != NULL ) && ( StrategyChar->GetCapsuleComponent() != NULL ) )
		{
			ActorExtent = StrategyChar->GetCapsuleComponent()->GetScaledCapsuleRadius();
		}
	}
	else if (Cast<AStrategyBuilding>(ForActor) != NULL)
	{
		Center2D = FVector2D(Canvas->Project(ForActor->GetActorLocation()));
		ActorExtent = 60;
	}

	FVector Pos1 = Canvas->Project(FVector(Center.X,Center.Y - ActorExtent*2, Center.Z + Extent.Z));
	FVector Pos2 = Canvas->Project(FVector(Center.X,Center.Y + ActorExtent*2, Center.Z + Extent.Z));
	float HealthBarLength = (Pos2-Pos1).Size2D();

	AStrategyPlayerController* MyPC = GetPlayerController();
	IStrategyTeamInterface* ActorTeam = Cast<IStrategyTeamInterface>(ForActor);
	UTexture2D* HealthBarTexture = EnemyTeamHPTexture;

	if (ActorTeam != NULL && MyPC != NULL && ActorTeam->GetTeamNum() == MyPC->GetTeamNum())
	{
		HealthBarTexture = PlayerTeamHPTexture;
	} 
	float X = Center2D.X - HealthBarLength/2;
	float Y = Center2D.Y + OffsetY;
	FCanvasTileItem TileItem( FVector2D( X, Y ), HealthBarTexture->Resource, FVector2D( HealthBarLength * HealthPercentage,  BarHeight ), FLinearColor::White );
	TileItem.BlendMode = SE_BLEND_Translucent;
	TileItem.UV1 = FVector2D(HealthPercentage, 1.0f);

	Canvas->DrawItem( TileItem );
	//Fill the rest of health with gray gradient texture
	X = Center2D.X-HealthBarLength/2 + HealthBarLength * HealthPercentage;
	Y = Center2D.Y + OffsetY;
	TileItem.Position = FVector2D( X, Y );
	TileItem.Texture = BarFillTexture->Resource;
	TileItem.UV1 = FVector2D(1.0f, 1.0f);
	TileItem.Size = FVector2D( HealthBarLength * (1.0f - HealthPercentage), BarHeight );
	TileItem.SetColor(FLinearColor(0.5f, 0.5f, 0.5f, 0.5f));
	Canvas->DrawItem( TileItem );	
}
void UHUDBlueprintLibrary::Projected2DBoundsWithOriginAndExtent(UObject* WorldContextObject, FVector Origin, FVector Extents,FVector2D &OutCenter, FVector2D &OutSize)
{
	const FVector BoundsPointMapping[8] =
	{
		FVector(1.f,   1.f,  1.f),
		FVector(1.f,   1.f, -1.f),
		FVector(1.f,  -1.f,  1.f),
		FVector(1.f,  -1.f, -1.f),
		FVector(-1.f,  1.f,  1.f),
		FVector(-1.f,  1.f, -1.f),
		FVector(-1.f, -1.f,  1.f),
		FVector(-1.f, -1.f, -1.f)
	};
	
	UWorld* World = GEngine->GetWorldFromContextObject(WorldContextObject);
	APlayerController *PlayerController = UGameplayStatics::GetPlayerController(World, 0);
	if (!PlayerController || !PlayerController->IsValidLowLevelFast()) return;
	
	FBox ActorBox = FBox::BuildAABB(Origin, Extents);
	FVector ActorCenter = ActorBox.GetCenter();
	
	FVector2D ProjectedCenter;
	float MinX, MinY, MaxX, MaxY;
	PlayerController->ProjectWorldLocationToScreen(ActorCenter, ProjectedCenter);
	MinX = MaxX = ProjectedCenter.X;
	MinY = MaxY = ProjectedCenter.Y;
	
	//FBox2D ActorBox2D(0);
	for (uint8 BoundsPointItr = 0; BoundsPointItr < 8; BoundsPointItr++)
	{
		// Project vert into screen space.
		FVector Corner = ActorCenter + (BoundsPointMapping[BoundsPointItr] * Extents);
		FVector2D ProjectedCorner;
		PlayerController->ProjectWorldLocationToScreen(Corner, ProjectedCorner);
		if (MinX > ProjectedCorner.X) MinX = ProjectedCorner.X;
		if (MaxX < ProjectedCorner.X) MaxX = ProjectedCorner.X;
		if (MinY > ProjectedCorner.Y) MinY = ProjectedCorner.Y;
		if (MaxY < ProjectedCorner.Y) MaxY = ProjectedCorner.Y;
		//ActorBox2D += ProjectedWorldLocation;
	}
	OutCenter.X = MinX + ((MaxX - MinX) / 2.f);
	OutCenter.Y = MinY + ((MaxY - MinY) / 2.f);
	OutSize.X = fabsf(MaxX - MinX);
	OutSize.Y = fabsf(MaxY - MinY);
}
Exemple #5
0
void FVertexSnappingImpl::GetActorsInsideBox( const FBox& Box, UWorld* World, TArray<FSnapActor>& OutActorsInBox, const TSet< TWeakObjectPtr<AActor> >& ActorsToIgnore, const FSceneView* View )
{
	for( FActorIterator It(World); It; ++It )
	{
		AActor* Actor = *It;
		// Ignore the builder brush, hidden actors and forcefully ignored actors (actors being moved)
		if( Actor != World->GetDefaultBrush() && It->IsHiddenEd() == false && !ActorsToIgnore.Contains( Actor ) )
		{
			const bool bNonColliding = true;
			FBox ActorBoundingBox = Actor->GetComponentsBoundingBox(true);

			// Actors must be within the bounding box and within the view frustum
			if( Box.Intersect( ActorBoundingBox ) && View->ViewFrustum.IntersectBox( ActorBoundingBox.GetCenter(), ActorBoundingBox.GetExtent() ) ) 
			{
				OutActorsInBox.Add( FSnapActor( Actor, Box ) );
			}
		}
	}
}
void ALevelBounds::UpdateLevelBounds()
{
	FBox LevelBounds = CalculateLevelBounds(GetLevel());
	if (LevelBounds.IsValid)
	{
		FVector LevelCenter = LevelBounds.GetCenter();
		FVector LevelSize = LevelBounds.GetSize();
		
		SetActorTransform(FTransform(FQuat::Identity, LevelCenter, LevelSize));
		bUsingDefaultBounds = false;
	}
	else
	{
		SetActorTransform(FTransform(FQuat::Identity, FVector::ZeroVector, DefaultLevelSize));
		bUsingDefaultBounds = true;
	}
	
	BroadcastLevelBoundsUpdated();
}
/**
  * Calculates a tight box-sphere bounds for the aggregate geometry; this is more expensive than CalcAABB
  * (tight meaning the sphere may be smaller than would be required to encompass the AABB, but all individual components lie within both the box and the sphere)
  *
  * @param Output The output box-sphere bounds calculated for this set of aggregate geometry
  *	@param LocalToWorld Transform
  */
void FKAggregateGeom::CalcBoxSphereBounds(FBoxSphereBounds& Output, const FTransform& LocalToWorld) const
{
	// Calculate the AABB
	const FBox AABB = CalcAABB(LocalToWorld);

	if ((SphereElems.Num() == 0) && (SphylElems.Num() == 0) && (BoxElems.Num() == 0))
	{
		// For bounds that only consist of convex shapes (such as anything generated from a BSP model),
		// we can get nice tight bounds by considering just the points of the convex shape
		const FVector Origin = AABB.GetCenter();

		float RadiusSquared = 0.0f;
		for (int32 i = 0; i < ConvexElems.Num(); i++)
		{
			const FKConvexElem& Elem = ConvexElems[i];
			for (int32 j = 0; j < Elem.VertexData.Num(); ++j)
			{
				const FVector Point = LocalToWorld.TransformPosition(Elem.VertexData[j]);
				RadiusSquared = FMath::Max(RadiusSquared, (Point - Origin).SizeSquared());
			}
		}

		// Push the resulting AABB and sphere into the output
		AABB.GetCenterAndExtents(Output.Origin, Output.BoxExtent);
		Output.SphereRadius = FMath::Sqrt(RadiusSquared);
	}
	else if ((SphereElems.Num() == 1) && (SphylElems.Num() == 0) && (BoxElems.Num() == 0) && (ConvexElems.Num() == 0))
	{
		// For bounds that only consist of a single sphere,
		// we can be certain the box extents are the same as its radius
		AABB.GetCenterAndExtents(Output.Origin, Output.BoxExtent);
		Output.SphereRadius = Output.BoxExtent.X;
	}
	else
	{
		// Just use the loose sphere bounds that totally fit the AABB
		Output = FBoxSphereBounds(AABB);
	}
}
void UStretchGizmoHandleGroup::UpdateGizmoHandleGroup( const FTransform& LocalToWorld, const FBox& LocalBounds, const FVector ViewLocation, bool bAllHandlesVisible, class UActorComponent* DraggingHandle, const TArray< UActorComponent* >& HoveringOverHandles, 
	float AnimationAlpha, float GizmoScale, const float GizmoHoverScale, const float GizmoHoverAnimationDuration, bool& bOutIsHoveringOrDraggingThisHandleGroup )
{
	// Call parent implementation (updates hover animation)
	Super::UpdateGizmoHandleGroup(LocalToWorld, LocalBounds, ViewLocation, bAllHandlesVisible, DraggingHandle, HoveringOverHandles,
		AnimationAlpha, GizmoScale, GizmoHoverScale, GizmoHoverAnimationDuration, bOutIsHoveringOrDraggingThisHandleGroup );

	for (int32 HandleIndex = 0; HandleIndex < Handles.Num(); ++HandleIndex)
	{
		FGizmoHandle& Handle = Handles[ HandleIndex ];

		UStaticMeshComponent* StretchingHandle = Handle.HandleMesh;
		if (StretchingHandle != nullptr)	// Can be null if no handle for this specific placement
		{
			const FTransformGizmoHandlePlacement HandlePlacement = MakeHandlePlacementForIndex( HandleIndex );

			float GizmoHandleScale = GizmoScale;

			const float OffsetFromSide = GizmoHandleScale *
				(0.0f +	// @todo vreditor tweak: Hard coded handle offset from side of primitive
				(1.0f - AnimationAlpha) * 10.0f);	// @todo vreditor tweak: Animation offset

			// Make the handle bigger while hovered (but don't affect the offset -- we want it to scale about it's origin)
			GizmoHandleScale *= FMath::Lerp( 1.0f, GizmoHoverScale, Handle.HoverAlpha );

			FVector HandleRelativeLocation = FVector::ZeroVector;
			for (int32 AxisIndex = 0; AxisIndex < 3; ++AxisIndex)
			{
				if (HandlePlacement.Axes[AxisIndex] == ETransformGizmoHandleDirection::Negative)	// Negative direction
				{
					HandleRelativeLocation[AxisIndex] = LocalBounds.Min[AxisIndex] - OffsetFromSide;
				}
				else if (HandlePlacement.Axes[AxisIndex] == ETransformGizmoHandleDirection::Positive)	// Positive direction
				{
					HandleRelativeLocation[AxisIndex] = LocalBounds.Max[AxisIndex] + OffsetFromSide;
				}
				else // ETransformGizmoHandleDirection::Center
				{
					HandleRelativeLocation[AxisIndex] = LocalBounds.GetCenter()[AxisIndex];
				}
			}

			StretchingHandle->SetRelativeLocation( HandleRelativeLocation );

			int32 CenterHandleCount, FacingAxisIndex, CenterAxisIndex;
			HandlePlacement.GetCenterHandleCountAndFacingAxisIndex( /* Out */ CenterHandleCount, /* Out */ FacingAxisIndex, /* Out */ CenterAxisIndex );

			FRotator Rotator = FRotator::ZeroRotator;
			{
				// Back bottom left
				if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Negative)
				{
					Rotator.Yaw = 0.0f;
					Rotator.Pitch = 0.0f;
				}

				// Back bottom right
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Negative)
				{
					Rotator.Yaw = -90.0f;
					Rotator.Pitch = 0.0f;
				}

				// Back top left
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Positive)
				{
					Rotator.Yaw = 0.0f;
					Rotator.Pitch = -90.0f;
				}

				// Back top right
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Positive)
				{
					Rotator.Yaw = -90.0f;
					Rotator.Pitch = -90.0f;
				}

				// Front bottom left
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Negative)
				{
					Rotator.Yaw = 0.0f;
					Rotator.Pitch = 90.0f;
				}

				// Front bottom right
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Negative)
				{
					Rotator.Yaw = 90.0f;
					Rotator.Pitch = 90.0f;
				}

				// Front top left
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Positive)
				{
					Rotator.Yaw = 0.0f;
					Rotator.Pitch = -180.0f;
				}

				// Front top right
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[1] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[2] == ETransformGizmoHandleDirection::Positive)
				{
					Rotator.Yaw = 180.0f;
					Rotator.Pitch = -90.0f;
				}

				// Back left/right edge
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[1] != ETransformGizmoHandleDirection::Center)
				{
					Rotator.Yaw = 0.0f;
					Rotator.Pitch = 90.0f;
				}

				// Back bottom/top edge
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Negative && HandlePlacement.Axes[2] != ETransformGizmoHandleDirection::Center)
				{
					Rotator.Yaw = 90.0f;
					Rotator.Pitch = 0.0f;
				}

				// Front left/right edge
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[1] != ETransformGizmoHandleDirection::Center)
				{
					Rotator.Yaw = 0.0f;
					Rotator.Pitch = 90.0f;
				}

				// Front bottom/top edge
				else if (HandlePlacement.Axes[0] == ETransformGizmoHandleDirection::Positive && HandlePlacement.Axes[2] != ETransformGizmoHandleDirection::Center)
				{
					Rotator.Yaw = 90.0f;
					Rotator.Pitch = 0.0f;
				}

				else
				{
					// Facing out from center of a face
					if (CenterHandleCount == 2)
					{
						const FQuat GizmoSpaceOrientation = GetAxisVector( FacingAxisIndex, HandlePlacement.Axes[FacingAxisIndex] ).ToOrientationQuat();
						Rotator = GizmoSpaceOrientation.Rotator();
					}

					else
					{
						// One of the left/right bottom or top edges
					}
				}
			}

			StretchingHandle->SetRelativeRotation( Rotator );

			StretchingHandle->SetRelativeScale3D( FVector( GizmoHandleScale ) );

			// Update material
			UpdateHandleColor( FacingAxisIndex, Handle, DraggingHandle, HoveringOverHandles );
		}
	}
}
FVector ABxtAsteroidSpawner::GetRandomSpawnLocation() const
{
	const FBox spawnerBounds = GetComponentsBoundingBox(true);
	const float y = FMath::FRandRange(spawnerBounds.Min.Y, spawnerBounds.Max.Y);
	return FVector(spawnerBounds.GetCenter().X - 500.0f, y, 0.0f);
}
static void UpdatePlanarReflectionContents_RenderThread(
	FRHICommandListImmediate& RHICmdList, 
	FSceneRenderer* MainSceneRenderer, 
	FSceneRenderer* SceneRenderer, 
	const FPlanarReflectionSceneProxy* SceneProxy,
	FRenderTarget* RenderTarget, 
	FTexture* RenderTargetTexture, 
	const FPlane& MirrorPlane,
	const FName OwnerName, 
	const FResolveParams& ResolveParams, 
	bool bUseSceneColorTexture)
{
	QUICK_SCOPE_CYCLE_COUNTER(STAT_RenderPlanarReflection);

	FBox PlanarReflectionBounds = SceneProxy->WorldBounds;

	bool bIsInAnyFrustum = false;
	for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
	{
		FViewInfo& View = SceneRenderer->Views[ViewIndex];
		if (View.ViewFrustum.IntersectBox(PlanarReflectionBounds.GetCenter(), PlanarReflectionBounds.GetExtent()))
		{
			bIsInAnyFrustum = true;
			break;
		}
	}

	if (bIsInAnyFrustum)
	{
		bool bIsVisibleInAnyView = true;
		for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
		{
			FViewInfo& View = SceneRenderer->Views[ViewIndex];
			FSceneViewState* ViewState = View.ViewState;

			if (ViewState)
			{
				FIndividualOcclusionHistory& OcclusionHistory = ViewState->PlanarReflectionOcclusionHistories.FindOrAdd(SceneProxy->PlanarReflectionId);

				// +1 to buffered frames because the query is submitted late into the main frame, but read at the beginning of a reflection capture frame
				const int32 NumBufferedFrames = FOcclusionQueryHelpers::GetNumBufferedFrames() + 1;
				// +1 to frame counter because we are operating before the main view's InitViews, which is where OcclusionFrameCounter is incremented
				uint32 OcclusionFrameCounter = ViewState->OcclusionFrameCounter + 1;
				FRenderQueryRHIRef& PastQuery = OcclusionHistory.GetPastQuery(OcclusionFrameCounter, NumBufferedFrames);

				if (IsValidRef(PastQuery))
				{
					uint64 NumSamples = 0;
					QUICK_SCOPE_CYCLE_COUNTER(STAT_PlanarReflectionOcclusionQueryResults);

					if (RHIGetRenderQueryResult(PastQuery.GetReference(), NumSamples, true))
					{
						bIsVisibleInAnyView = NumSamples > 0;
						if (bIsVisibleInAnyView)
						{
							break;
						}
					}
				}
			}
		}

		if (bIsVisibleInAnyView)
		{
			FMemMark MemStackMark(FMemStack::Get());

			// update any resources that needed a deferred update
			FDeferredUpdateResource::UpdateResources(RHICmdList);

			{
#if WANTS_DRAW_MESH_EVENTS
				FString EventName;
				OwnerName.ToString(EventName);
				SCOPED_DRAW_EVENTF(RHICmdList, SceneCapture, TEXT("PlanarReflection %s"), *EventName);
#else
				SCOPED_DRAW_EVENT(RHICmdList, UpdatePlanarReflectionContent_RenderThread);
#endif

				const FRenderTarget* Target = SceneRenderer->ViewFamily.RenderTarget;
				SetRenderTarget(RHICmdList, Target->GetRenderTargetTexture(), NULL, true);

				// Note: relying on GBuffer SceneColor alpha being cleared to 1 in the main scene rendering
				check(GetSceneColorClearAlpha() == 1.0f);
				RHICmdList.Clear(true, FLinearColor(0, 0, 0, 1), false, (float)ERHIZBuffer::FarPlane, false, 0, FIntRect());

				// Reflection view late update
				if (SceneRenderer->Views.Num() > 1)
				{
					const FMirrorMatrix MirrorMatrix(MirrorPlane);
					for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
					{
						FViewInfo& ReflectionViewToUpdate = SceneRenderer->Views[ViewIndex];
						const FViewInfo& UpdatedParentView = MainSceneRenderer->Views[ViewIndex];

						ReflectionViewToUpdate.UpdatePlanarReflectionViewMatrix(UpdatedParentView, MirrorMatrix);
					}
				}

				// Render the scene normally
				{
					SCOPED_DRAW_EVENT(RHICmdList, RenderScene);
					SceneRenderer->Render(RHICmdList);
				}

				for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
				{
					FViewInfo& View = SceneRenderer->Views[ViewIndex];
					if (MainSceneRenderer->Scene->GetShadingPath() == EShadingPath::Deferred)
					{
						PrefilterPlanarReflection<true>(RHICmdList, View, SceneProxy, Target);
					}
					else
					{
						PrefilterPlanarReflection<false>(RHICmdList, View, SceneProxy, Target);
					}
				}
				RHICmdList.CopyToResolveTarget(RenderTarget->GetRenderTargetTexture(), RenderTargetTexture->TextureRHI, false, ResolveParams);
			}
			FSceneRenderer::WaitForTasksClearSnapshotsAndDeleteSceneRenderer(RHICmdList, SceneRenderer);
		}
	}
}
void FLogVisualizer::UpdateCameraPosition(FName RowName, int32 ItemIndes)
{
    const FVisualLoggerDBRow& DBRow = FVisualLoggerDatabase::Get().GetRowByName(RowName);
    auto &Entries = DBRow.GetItems();
    if (DBRow.GetCurrentItemIndex() == INDEX_NONE || Entries.IsValidIndex(DBRow.GetCurrentItemIndex()) == false)
    {
        return;
    }

    UWorld* World = GetWorld();

    FVector CurrentLocation = Entries[DBRow.GetCurrentItemIndex()].Entry.Location;

    FVector Extent(150);
    bool bFoundActor = false;
    FName OwnerName = Entries[DBRow.GetCurrentItemIndex()].OwnerName;
    for (FActorIterator It(World); It; ++It)
    {
        AActor* Actor = *It;
        if (Actor->GetFName() == OwnerName)
        {
            FVector Orgin;
            Actor->GetActorBounds(false, Orgin, Extent);
            bFoundActor = true;
            break;
        }
    }


    const float DefaultCameraDistance = ULogVisualizerSettings::StaticClass()->GetDefaultObject<ULogVisualizerSettings>()->DefaultCameraDistance;
    Extent = Extent.SizeSquared() < FMath::Square(DefaultCameraDistance) ? FVector(DefaultCameraDistance) : Extent;

#if WITH_EDITOR
    UEditorEngine *EEngine = Cast<UEditorEngine>(GEngine);
    if (GIsEditor && EEngine != NULL)
    {
        for (auto ViewportClient : EEngine->AllViewportClients)
        {
            ViewportClient->FocusViewportOnBox(FBox::BuildAABB(CurrentLocation, Extent));
        }
    }
    else if (AVisualLoggerCameraController::IsEnabled(World) && AVisualLoggerCameraController::Instance.IsValid() && AVisualLoggerCameraController::Instance->GetSpectatorPawn())
    {
        ULocalPlayer* LocalPlayer = Cast<ULocalPlayer>(AVisualLoggerCameraController::Instance->Player);
        if (LocalPlayer && LocalPlayer->ViewportClient && LocalPlayer->ViewportClient->Viewport)
        {

            FViewport* Viewport = LocalPlayer->ViewportClient->Viewport;

            FBox BoundingBox = FBox::BuildAABB(CurrentLocation, Extent);
            const FVector Position = BoundingBox.GetCenter();
            float Radius = BoundingBox.GetExtent().Size();

            FViewportCameraTransform ViewTransform;
            ViewTransform.TransitionToLocation(Position, nullptr, true);

            float NewOrthoZoom;
            const float AspectRatio = 1.777777f;
            CA_SUPPRESS(6326);
            uint32 MinAxisSize = (AspectRatio > 1.0f) ? Viewport->GetSizeXY().Y : Viewport->GetSizeXY().X;
            float Zoom = Radius / (MinAxisSize / 2.0f);

            NewOrthoZoom = Zoom * (Viewport->GetSizeXY().X*15.0f);
            NewOrthoZoom = FMath::Clamp<float>(NewOrthoZoom, 250, MAX_FLT);
            ViewTransform.SetOrthoZoom(NewOrthoZoom);

            AVisualLoggerCameraController::Instance->GetSpectatorPawn()->TeleportTo(ViewTransform.GetLocation(), ViewTransform.GetRotation(), false, true);
        }
    }
#endif
}
void UGameplayDebuggingComponent::ServerCollectNavmeshData_Implementation(FVector_NetQuantize10 TargetLocation)
{
#if WITH_RECAST
    UNavigationSystem* NavSys = UNavigationSystem::GetCurrent(GetWorld());
    ARecastNavMesh* NavData = GetNavData();
    if (NavData == NULL)
    {
        NavmeshRepData.Empty();
        return;
    }

    const double Timer1 = FPlatformTime::Seconds();

    TArray<int32> Indices;
    int32 TileX = 0;
    int32 TileY = 0;
    const int32 DeltaX[] = { 0, 1, 1, 0, -1, -1, -1,  0,  1 };
    const int32 DeltaY[] = { 0, 0, 1, 1,  1,  0, -1, -1, -1 };

    NavData->BeginBatchQuery();

    // add 3x3 neighborhood of target
    int32 TargetTileX = 0;
    int32 TargetTileY = 0;
    NavData->GetNavMeshTileXY(TargetLocation, TargetTileX, TargetTileY);
    for (int32 i = 0; i < ARRAY_COUNT(DeltaX); i++)
    {
        const int32 NeiX = TargetTileX + DeltaX[i];
        const int32 NeiY = TargetTileY + DeltaY[i];
        if (FMath::Abs(NeiX - TileX) > 1 || FMath::Abs(NeiY - TileY) > 1)
        {
            NavData->GetNavMeshTilesAt(NeiX, NeiY, Indices);
        }
    }

    const FNavDataConfig& NavConfig = NavData->GetConfig();
    FColor NavMeshColors[RECAST_MAX_AREAS];
    NavMeshColors[RECAST_DEFAULT_AREA] = NavConfig.Color.DWColor() > 0 ? NavConfig.Color : NavMeshRenderColor_RecastMesh;
    for (uint8 i = 0; i < RECAST_DEFAULT_AREA; ++i)
    {
        NavMeshColors[i] = NavData->GetAreaIDColor(i);
    }

    TArray<uint8> UncompressedBuffer;
    FMemoryWriter ArWriter(UncompressedBuffer);

    int32 NumIndices = Indices.Num();
    ArWriter << NumIndices;

    for (int32 i = 0; i < NumIndices; i++)
    {
        FRecastDebugGeometry NavMeshGeometry;
        NavMeshGeometry.bGatherPolyEdges = false;
        NavMeshGeometry.bGatherNavMeshEdges = false;
        NavData->GetDebugGeometry(NavMeshGeometry, Indices[i]);

        NavMeshDebug::FTileData TileData;
        const FBox TileBoundingBox = NavData->GetNavMeshTileBounds(Indices[i]);
        TileData.Location = TileBoundingBox.GetCenter();
        for (int32 VertIndex = 0; VertIndex < NavMeshGeometry.MeshVerts.Num(); ++VertIndex)
        {
            const NavMeshDebug::FShortVector SV = NavMeshGeometry.MeshVerts[VertIndex] - TileData.Location;
            TileData.Verts.Add(SV);
        }

        for (int32 iArea = 0; iArea < RECAST_MAX_AREAS; iArea++)
        {
            const int32 NumTris = NavMeshGeometry.AreaIndices[iArea].Num();
            if (NumTris)
            {
                NavMeshDebug::FAreaPolys AreaPolys;
                for (int32 AreaIndicesIndex = 0; AreaIndicesIndex < NavMeshGeometry.AreaIndices[iArea].Num(); ++AreaIndicesIndex)
                {
                    AreaPolys.Indices.Add(NavMeshGeometry.AreaIndices[iArea][AreaIndicesIndex]);
                }
                AreaPolys.Color = NavMeshColors[iArea];
                TileData.Areas.Add(AreaPolys);
            }
        }

        TileData.Links.Reserve(NavMeshGeometry.OffMeshLinks.Num());
        for (int32 iLink = 0; iLink < NavMeshGeometry.OffMeshLinks.Num(); iLink++)
        {
            const FRecastDebugGeometry::FOffMeshLink& SrcLink = NavMeshGeometry.OffMeshLinks[iLink];
            NavMeshDebug::FOffMeshLink Link;
            Link.Left = SrcLink.Left - TileData.Location;
            Link.Right = SrcLink.Right - TileData.Location;
            Link.Color = ((SrcLink.Direction && SrcLink.ValidEnds) || (SrcLink.ValidEnds & FRecastDebugGeometry::OMLE_Left)) ? DarkenColor(NavMeshColors[SrcLink.AreaID]) : NavMeshRenderColor_OffMeshConnectionInvalid;
            Link.PackedFlags.Radius = (int8)SrcLink.Radius;
            Link.PackedFlags.Direction = SrcLink.Direction;
            Link.PackedFlags.ValidEnds = SrcLink.ValidEnds;
            TileData.Links.Add(Link);
        }

        ArWriter << TileData;
    }
    NavData->FinishBatchQuery();

    const double Timer2 = FPlatformTime::Seconds();

    const int32 HeaderSize = sizeof(int32);
    NavmeshRepData.Init(0, HeaderSize + FMath::TruncToInt(1.1f * UncompressedBuffer.Num()));

    const int32 UncompressedSize = UncompressedBuffer.Num();
    int32 CompressedSize = NavmeshRepData.Num() - HeaderSize;
    uint8* DestBuffer = NavmeshRepData.GetData();
    FMemory::Memcpy(DestBuffer, &UncompressedSize, HeaderSize);
    DestBuffer += HeaderSize;

    FCompression::CompressMemory((ECompressionFlags)(COMPRESS_ZLIB | COMPRESS_BiasMemory),
                                 (void*)DestBuffer, CompressedSize, (void*)UncompressedBuffer.GetData(), UncompressedSize);

    NavmeshRepData.SetNum(CompressedSize + HeaderSize, false);

    const double Timer3 = FPlatformTime::Seconds();
    UE_LOG(LogGDT, Log, TEXT("Preparing navmesh data: %.1fkB took %.3fms (collect: %.3fms + compress %d%%: %.3fms)"),
           NavmeshRepData.Num() / 1024.0f, 1000.0f * (Timer3 - Timer1),
           1000.0f * (Timer2 - Timer1),
           FMath::TruncToInt(100.0f * NavmeshRepData.Num() / UncompressedBuffer.Num()), 1000.0f * (Timer3 - Timer2));
#endif

    if (World && World->GetNetMode() != NM_DedicatedServer)
    {
        OnRep_UpdateNavmesh();
    }
}
AHierarchicalLODVolume* FHierarchicalLODUtilities::CreateVolumeForLODActor(ALODActor* InLODActor, UWorld* InWorld)
{
	FBox BoundingBox = InLODActor->GetComponentsBoundingBox(true);

	AHierarchicalLODVolume* Volume = InWorld->SpawnActor<AHierarchicalLODVolume>(AHierarchicalLODVolume::StaticClass(), FTransform(BoundingBox.GetCenter()));

	// this code builds a brush for the new actor
	Volume->PreEditChange(NULL);

	Volume->PolyFlags = 0;
	Volume->Brush = NewObject<UModel>(Volume, NAME_None, RF_Transactional);
	Volume->Brush->Initialize(nullptr, true);
	Volume->Brush->Polys = NewObject<UPolys>(Volume->Brush, NAME_None, RF_Transactional);
	Volume->GetBrushComponent()->Brush = Volume->Brush;
	Volume->BrushBuilder = NewObject<UCubeBuilder>(Volume, NAME_None, RF_Transactional);

	UCubeBuilder* CubeBuilder = static_cast<UCubeBuilder*>(Volume->BrushBuilder);

	CubeBuilder->X = BoundingBox.GetSize().X * 1.5f;
	CubeBuilder->Y = BoundingBox.GetSize().Y * 1.5f;
	CubeBuilder->Z = BoundingBox.GetSize().Z * 1.5f;

	Volume->BrushBuilder->Build(InWorld, Volume);

	FBSPOps::csgPrepMovingBrush(Volume);

	// Set the texture on all polys to NULL.  This stops invisible textures
	// dependencies from being formed on volumes.
	if (Volume->Brush)
	{
		for (int32 poly = 0; poly < Volume->Brush->Polys->Element.Num(); ++poly)
		{
			FPoly* Poly = &(Volume->Brush->Polys->Element[poly]);
			Poly->Material = NULL;
		}
	}

	Volume->PostEditChange();

	return Volume;
}
/** 
 * Returns an array of visibility data for the given view position, or NULL if none exists. 
 * The data bits are indexed by VisibilityId of each primitive in the scene.
 * This method decompresses data if necessary and caches it based on the bucket and chunk index in the view state.
 */
const uint8* FSceneViewState::GetPrecomputedVisibilityData(FViewInfo& View, const FScene* Scene)
{
	const uint8* PrecomputedVisibilityData = NULL;
	if (Scene->PrecomputedVisibilityHandler && GAllowPrecomputedVisibility && View.Family->EngineShowFlags.PrecomputedVisibility)
	{
		const FPrecomputedVisibilityHandler& Handler = *Scene->PrecomputedVisibilityHandler;
		FViewElementPDI VisibilityCellsPDI(&View, NULL);

		// Draw visibility cell bounds for debugging if enabled
		if ((GShowPrecomputedVisibilityCells || View.Family->EngineShowFlags.PrecomputedVisibilityCells) && !GShowRelevantPrecomputedVisibilityCells)
		{
			for (int32 BucketIndex = 0; BucketIndex < Handler.PrecomputedVisibilityCellBuckets.Num(); BucketIndex++)
			{
				for (int32 CellIndex = 0; CellIndex < Handler.PrecomputedVisibilityCellBuckets[BucketIndex].Cells.Num(); CellIndex++)
				{
					const FPrecomputedVisibilityCell& CurrentCell = Handler.PrecomputedVisibilityCellBuckets[BucketIndex].Cells[CellIndex];
					// Construct the cell's bounds
					const FBox CellBounds(CurrentCell.Min, CurrentCell.Min + FVector(Handler.PrecomputedVisibilityCellSizeXY, Handler.PrecomputedVisibilityCellSizeXY, Handler.PrecomputedVisibilityCellSizeZ));
					if (View.ViewFrustum.IntersectBox(CellBounds.GetCenter(), CellBounds.GetExtent()))
					{
						DrawWireBox(&VisibilityCellsPDI, CellBounds, FColor(50, 50, 255), SDPG_World);
					}
				}
			}
		}

		// Calculate the bucket that ViewOrigin falls into
		// Cells are hashed into buckets to reduce search time
		const float FloatOffsetX = (View.ViewMatrices.ViewOrigin.X - Handler.PrecomputedVisibilityCellBucketOriginXY.X) / Handler.PrecomputedVisibilityCellSizeXY;
		// FMath::TruncToInt rounds toward 0, we want to always round down
		const int32 BucketIndexX = FMath::Abs((FMath::TruncToInt(FloatOffsetX) - (FloatOffsetX < 0.0f ? 1 : 0)) / Handler.PrecomputedVisibilityCellBucketSizeXY % Handler.PrecomputedVisibilityNumCellBuckets);
		const float FloatOffsetY = (View.ViewMatrices.ViewOrigin.Y -Handler.PrecomputedVisibilityCellBucketOriginXY.Y) / Handler.PrecomputedVisibilityCellSizeXY;
		const int32 BucketIndexY = FMath::Abs((FMath::TruncToInt(FloatOffsetY) - (FloatOffsetY < 0.0f ? 1 : 0)) / Handler.PrecomputedVisibilityCellBucketSizeXY % Handler.PrecomputedVisibilityNumCellBuckets);
		const int32 PrecomputedVisibilityBucketIndex = BucketIndexY * Handler.PrecomputedVisibilityCellBucketSizeXY + BucketIndexX;

		check(PrecomputedVisibilityBucketIndex < Handler.PrecomputedVisibilityCellBuckets.Num());
		const FPrecomputedVisibilityBucket& CurrentBucket = Handler.PrecomputedVisibilityCellBuckets[PrecomputedVisibilityBucketIndex];
		for (int32 CellIndex = 0; CellIndex < CurrentBucket.Cells.Num(); CellIndex++)
		{
			const FPrecomputedVisibilityCell& CurrentCell = CurrentBucket.Cells[CellIndex];
			// Construct the cell's bounds
			const FBox CellBounds(CurrentCell.Min, CurrentCell.Min + FVector(Handler.PrecomputedVisibilityCellSizeXY, Handler.PrecomputedVisibilityCellSizeXY, Handler.PrecomputedVisibilityCellSizeZ));
			// Check if ViewOrigin is inside the current cell
			if (CellBounds.IsInside(View.ViewMatrices.ViewOrigin))
			{
				// Reuse a cached decompressed chunk if possible
				if (CachedVisibilityChunk
					&& CachedVisibilityHandlerId == Scene->PrecomputedVisibilityHandler->GetId()
					&& CachedVisibilityBucketIndex == PrecomputedVisibilityBucketIndex
					&& CachedVisibilityChunkIndex == CurrentCell.ChunkIndex)
				{
					checkSlow(CachedVisibilityChunk->Num() >= CurrentCell.DataOffset + CurrentBucket.CellDataSize);
					PrecomputedVisibilityData = &(*CachedVisibilityChunk)[CurrentCell.DataOffset];
				}
				else
				{
					const FCompressedVisibilityChunk& CompressedChunk = Handler.PrecomputedVisibilityCellBuckets[PrecomputedVisibilityBucketIndex].CellDataChunks[CurrentCell.ChunkIndex];
					CachedVisibilityBucketIndex = PrecomputedVisibilityBucketIndex;
					CachedVisibilityChunkIndex = CurrentCell.ChunkIndex;
					CachedVisibilityHandlerId = Scene->PrecomputedVisibilityHandler->GetId();

					if (CompressedChunk.bCompressed)
					{
						// Decompress the needed visibility data chunk
						DecompressedVisibilityChunk.Reset();
						DecompressedVisibilityChunk.AddUninitialized(CompressedChunk.UncompressedSize);
						verify(FCompression::UncompressMemory(
							COMPRESS_ZLIB, 
							DecompressedVisibilityChunk.GetData(),
							CompressedChunk.UncompressedSize,
							CompressedChunk.Data.GetData(),
							CompressedChunk.Data.Num()));
						CachedVisibilityChunk = &DecompressedVisibilityChunk;
					}
					else
					{
						CachedVisibilityChunk = &CompressedChunk.Data;
					}

					checkSlow(CachedVisibilityChunk->Num() >= CurrentCell.DataOffset + CurrentBucket.CellDataSize);
					// Return a pointer to the cell containing ViewOrigin's decompressed visibility data
					PrecomputedVisibilityData = &(*CachedVisibilityChunk)[CurrentCell.DataOffset];
				}

				if (GShowRelevantPrecomputedVisibilityCells)
				{
					// Draw the currently used visibility cell with green wireframe for debugging
					DrawWireBox(&VisibilityCellsPDI, CellBounds, FColor(50, 255, 50), SDPG_Foreground);
				}
				else
				{
					break;
				}
			}
			else if (GShowRelevantPrecomputedVisibilityCells)
			{
				// Draw all cells in the current visibility bucket as blue wireframe
				DrawWireBox(&VisibilityCellsPDI, CellBounds, FColor(50, 50, 255), SDPG_World);
			}
		}
	}
	return PrecomputedVisibilityData;
}
void ASpacePartioner::Initialize(const FBox& inNewBounds, const bool& inDrawDebugInfo)
{
	bInitialized = true;
	bDrawDebugInfo = inDrawDebugInfo;
	OctreeData = new FSimpleOctree(inNewBounds.GetCenter(), inNewBounds.GetExtent().GetMax()); // const FVector & InOrigin, float InExtent
}
void AGameplayDebuggerReplicator::DrawDebugData(class UCanvas* Canvas, class APlayerController* PC, bool bHideMenu)
{
#if ENABLED_GAMEPLAY_DEBUGGER
	if (!LocalPlayerOwner && IsActorTickEnabled())
	{
		return;
	}

	const bool bAllowToDraw = Canvas && Canvas->SceneView && (Canvas->SceneView->ViewActor == LocalPlayerOwner->AcknowledgedPawn || Canvas->SceneView->ViewActor == LocalPlayerOwner->GetPawnOrSpectator());
	if (!bAllowToDraw)
	{
		// check for spectator debug camera during debug camera
		if (DebugCameraController.IsValid() == false || Canvas->SceneView->ViewActor->GetInstigatorController() != DebugCameraController.Get())
		{
			return;
		}
	}

	const float DebugInfoStartX = UGameplayDebuggerModuleSettings::StaticClass()->GetDefaultObject<UGameplayDebuggerModuleSettings>()->DebugInfoStart.X;
	const float DebugInfoStartY = UGameplayDebuggerModuleSettings::StaticClass()->GetDefaultObject<UGameplayDebuggerModuleSettings>()->DebugInfoStart.Y;
	const FVector SelectedActorLoc = LastSelectedActorToDebug ? LastSelectedActorToDebug->GetActorLocation() + FVector(0, 0, LastSelectedActorToDebug->GetSimpleCollisionHalfHeight()) : DebugTools::InvalidLocation;
	
	UGameplayDebuggerHelper::FPrintContext DefaultContext(GEngine->GetSmallFont(), Canvas, DebugInfoStartX, DebugInfoStartY);
	DefaultContext.FontRenderInfo.bEnableShadow = true;
	const bool bDrawFullData = SelectedActorLoc != DebugTools::InvalidLocation;
	const FVector ScreenLoc = SelectedActorLoc != DebugTools::InvalidLocation ? UGameplayDebuggerHelper::ProjectLocation(DefaultContext, SelectedActorLoc) : FVector::ZeroVector;
	UGameplayDebuggerHelper::FPrintContext OverHeadContext(GEngine->GetSmallFont(), Canvas, ScreenLoc.X, ScreenLoc.Y);

	UGameplayDebuggerHelper::SetOverHeadContext(OverHeadContext);
	UGameplayDebuggerHelper::SetDefaultContext(DefaultContext);

	if (DefaultContext.Canvas != nullptr)
	{
		float XL, YL;
		const FString ToolName = FString::Printf(TEXT("Gameplay Debugger [Timestamp: %05.03f]"), GetWorld()->TimeSeconds);
		UGameplayDebuggerHelper::CalulateStringSize(DefaultContext, nullptr, ToolName, XL, YL);
		UGameplayDebuggerHelper::PrintString(DefaultContext, FColorList::White, ToolName, DefaultContext.Canvas->ClipX / 2.0f - XL / 2.0f, 0);
	}

	if (!bHideMenu)
	{
		DrawMenu(DefaultContext, OverHeadContext);
	}

	TMap<FString, TArray<UGameplayDebuggerBaseObject*> > CategoryToClasses;
	for (UGameplayDebuggerBaseObject* Obj : ReplicatedObjects)
	{
		if (Obj)
		{
			FString Category = Obj->GetCategoryName();
			CategoryToClasses.FindOrAdd(Category).Add(Obj);
		}
	}
	CategoryToClasses.KeySort(TLess<FString>());

	for (auto It(CategoryToClasses.CreateIterator()); It; ++It)
	{
		const FGameplayDebuggerCategorySettings* Element = Categories.FindByPredicate([&](const FGameplayDebuggerCategorySettings& C){ return It.Key() == C.CategoryName; });
		if (Element == nullptr || Element->bPIE == false)
		{
			continue;
		}

		UGameplayDebuggerHelper::PrintString(UGameplayDebuggerHelper::GetDefaultContext(), FString::Printf(TEXT("\n{R=0,G=255,B=0,A=255}%s\n"), *It.Key()));
		TArray<UGameplayDebuggerBaseObject*>& CurrentObjects = It.Value();
		for (UGameplayDebuggerBaseObject* Obj : CurrentObjects)
		{
			Obj->DrawCollectedData(LocalPlayerOwner, LastSelectedActorToDebug);
		}
	}

	const IConsoleVariable* cvarHighlightSelectedActor = IConsoleManager::Get().FindConsoleVariable(TEXT("ai.gd.HighlightSelectedActor"));
	const bool bHighlightSelectedActor = !cvarHighlightSelectedActor || cvarHighlightSelectedActor->GetInt();
	if (LastSelectedActorToDebug && bHighlightSelectedActor)
	{
		FBox ComponentsBoundingBox = LastSelectedActorToDebug->GetComponentsBoundingBox(false);
		DrawDebugBox(GetWorld(), ComponentsBoundingBox.GetCenter(), ComponentsBoundingBox.GetExtent(), FColor::Red, false);
		DrawDebugSolidBox(GetWorld(), ComponentsBoundingBox.GetCenter(), ComponentsBoundingBox.GetExtent(), FColor::Red.WithAlpha(25));
	}
#endif
}
void UNavMeshRenderingComponent::GatherData(struct FNavMeshSceneProxyData* CurrentData) const
{
#if WITH_RECAST
	const ARecastNavMesh* NavMesh = Cast<ARecastNavMesh>(GetOwner());

	CurrentData->Reset();
	CurrentData->bEnableDrawing = NavMesh->bEnableDrawing;
	CurrentData->bNeedsNewData = false;

	if (CurrentData && NavMesh && NavMesh->bEnableDrawing)
	{
		FHitProxyId HitProxyId = FHitProxyId();
		CurrentData->bDrawPathCollidingGeometry = NavMesh->bDrawPathCollidingGeometry;

		CurrentData->NavMeshDrawOffset.Z = NavMesh->DrawOffset;
		CurrentData->NavMeshGeometry.bGatherPolyEdges = NavMesh->bDrawPolyEdges;
		CurrentData->NavMeshGeometry.bGatherNavMeshEdges = NavMesh->bDrawNavMeshEdges;

		const FNavDataConfig& NavConfig = NavMesh->GetConfig();
		CurrentData->NavMeshColors[RECAST_DEFAULT_AREA] = NavConfig.Color.DWColor() > 0 ? NavConfig.Color : NavMeshRenderColor_RecastMesh;
		for (uint8 i = 0; i < RECAST_DEFAULT_AREA; ++i)
		{
			CurrentData->NavMeshColors[i] = NavMesh->GetAreaIDColor(i);
		}

		// just a little trick to make sure navmeshes with different sized are not drawn with same offset
		CurrentData->NavMeshDrawOffset.Z += NavMesh->GetConfig().AgentRadius / 10.f;

		NavMesh->BeginBatchQuery();

		if (NavMesh->bDrawOctree)
		{
			const UNavigationSystem* NavSys = UNavigationSystem::GetCurrent(GetWorld());
			const FNavigationOctree* NavOctree = NavSys ? NavSys->GetNavOctree() : NULL;
			if (NavOctree)
			{
				for (FNavigationOctree::TConstIterator<> NodeIt(*NavOctree); NodeIt.HasPendingNodes(); NodeIt.Advance())
				{
					const FNavigationOctree::FNode& CurrentNode = NodeIt.GetCurrentNode();
					const FOctreeNodeContext& CorrentContext = NodeIt.GetCurrentContext();
					CurrentData->OctreeBounds.Add(CorrentContext.Bounds);

					FOREACH_OCTREE_CHILD_NODE(ChildRef)
					{
						if (CurrentNode.HasChild(ChildRef))
						{
							NodeIt.PushChild(ChildRef);
						}
					}
				}
			}
		}

		NavMesh->GetDebugGeometry(CurrentData->NavMeshGeometry);
		const TArray<FVector>& MeshVerts = CurrentData->NavMeshGeometry.MeshVerts;

		// @fixme, this is going to double up on lots of interior lines
		if (NavMesh->bDrawTriangleEdges)
		{
			for (int32 AreaIdx = 0; AreaIdx < RECAST_MAX_AREAS; ++AreaIdx)
			{
				const TArray<int32>& MeshIndices = CurrentData->NavMeshGeometry.AreaIndices[AreaIdx];
				for (int32 Idx=0; Idx<MeshIndices.Num(); Idx += 3)
				{
					CurrentData->ThickLineItems.Add(FNavMeshSceneProxyData::FDebugThickLine(MeshVerts[MeshIndices[Idx + 0]] + CurrentData->NavMeshDrawOffset, MeshVerts[MeshIndices[Idx + 1]] + CurrentData->NavMeshDrawOffset, NavMeshRenderColor_Recast_TriangleEdges, DefaultEdges_LineThickness));
					CurrentData->ThickLineItems.Add(FNavMeshSceneProxyData::FDebugThickLine(MeshVerts[MeshIndices[Idx + 1]] + CurrentData->NavMeshDrawOffset, MeshVerts[MeshIndices[Idx + 2]] + CurrentData->NavMeshDrawOffset, NavMeshRenderColor_Recast_TriangleEdges, DefaultEdges_LineThickness));
					CurrentData->ThickLineItems.Add(FNavMeshSceneProxyData::FDebugThickLine(MeshVerts[MeshIndices[Idx + 2]] + CurrentData->NavMeshDrawOffset, MeshVerts[MeshIndices[Idx + 0]] + CurrentData->NavMeshDrawOffset, NavMeshRenderColor_Recast_TriangleEdges, DefaultEdges_LineThickness));
				}
			}
		}

		// make lines for tile edges
		if (NavMesh->bDrawPolyEdges)
		{
			const TArray<FVector>& TileEdgeVerts = CurrentData->NavMeshGeometry.PolyEdges;
			for (int32 Idx=0; Idx < TileEdgeVerts.Num(); Idx += 2)
			{
				CurrentData->TileEdgeLines.Add( FDebugRenderSceneProxy::FDebugLine(TileEdgeVerts[Idx] + CurrentData->NavMeshDrawOffset, TileEdgeVerts[Idx+1] + CurrentData->NavMeshDrawOffset, NavMeshRenderColor_Recast_TileEdges));
			}
		}

		// make lines for navmesh edges
		if (NavMesh->bDrawNavMeshEdges)
		{
			const FColor EdgesColor = DarkenColor(CurrentData->NavMeshColors[RECAST_DEFAULT_AREA]);
			const TArray<FVector>& NavMeshEdgeVerts = CurrentData->NavMeshGeometry.NavMeshEdges;
			for (int32 Idx=0; Idx < NavMeshEdgeVerts.Num(); Idx += 2)
			{
				CurrentData->NavMeshEdgeLines.Add( FDebugRenderSceneProxy::FDebugLine(NavMeshEdgeVerts[Idx] + CurrentData->NavMeshDrawOffset, NavMeshEdgeVerts[Idx+1] + CurrentData->NavMeshDrawOffset, EdgesColor));
			}
		}

		// offset all navigation-link positions
		if (!NavMesh->bDrawClusters)
		{
			for (int32 OffMeshLineIndex = 0; OffMeshLineIndex < CurrentData->NavMeshGeometry.OffMeshLinks.Num(); ++OffMeshLineIndex)
			{
				FRecastDebugGeometry::FOffMeshLink& Link = CurrentData->NavMeshGeometry.OffMeshLinks[OffMeshLineIndex];
				const bool bLinkValid = (Link.ValidEnds & FRecastDebugGeometry::OMLE_Left) && (Link.ValidEnds & FRecastDebugGeometry::OMLE_Right);

				if (NavMesh->bDrawFailedNavLinks || (NavMesh->bDrawNavLinks && bLinkValid))
				{
					const FVector V0 = Link.Left + CurrentData->NavMeshDrawOffset;
					const FVector V1 = Link.Right + CurrentData->NavMeshDrawOffset;
					const FColor LinkColor = ((Link.Direction && Link.ValidEnds) || (Link.ValidEnds & FRecastDebugGeometry::OMLE_Left)) ? DarkenColor(CurrentData->NavMeshColors[Link.AreaID]) : NavMeshRenderColor_OffMeshConnectionInvalid;

					CacheArc(CurrentData->NavLinkLines, V0, V1, 0.4f, 4, LinkColor, LinkLines_LineThickness);

					const FVector VOffset(0, 0, FVector::Dist(V0, V1) * 1.333f);
					CacheArrowHead(CurrentData->NavLinkLines, V1, V0+VOffset, 30.f, LinkColor, LinkLines_LineThickness);
					if (Link.Direction)
					{
						CacheArrowHead(CurrentData->NavLinkLines, V0, V1+VOffset, 30.f, LinkColor, LinkLines_LineThickness);
					}

					// if the connection as a whole is valid check if there are any of ends is invalid
					if (LinkColor != NavMeshRenderColor_OffMeshConnectionInvalid)
					{
						if (Link.Direction && (Link.ValidEnds & FRecastDebugGeometry::OMLE_Left) == 0)
						{
							// left end invalid - mark it
							DrawWireCylinder(CurrentData->NavLinkLines, V0, FVector(1,0,0), FVector(0,1,0), FVector(0,0,1), NavMeshRenderColor_OffMeshConnectionInvalid, Link.Radius, NavMesh->AgentMaxStepHeight, 16, 0, DefaultEdges_LineThickness);
						}
						if ((Link.ValidEnds & FRecastDebugGeometry::OMLE_Right) == 0)
						{
							DrawWireCylinder(CurrentData->NavLinkLines, V1, FVector(1,0,0), FVector(0,1,0), FVector(0,0,1), NavMeshRenderColor_OffMeshConnectionInvalid, Link.Radius, NavMesh->AgentMaxStepHeight, 16, 0, DefaultEdges_LineThickness);
						}
					}
				}					
			}
		}

		if (NavMesh->bDrawTileLabels || NavMesh->bDrawPolygonLabels || NavMesh->bDrawDefaultPolygonCost || NavMesh->bDrawTileBounds)
		{
			// calculate appropriate points for displaying debug labels
			const int32 TilesCount = NavMesh->GetNavMeshTilesCount();
			CurrentData->DebugLabels.Reserve(TilesCount);

			for (int32 TileIndex = 0; TileIndex < TilesCount; ++TileIndex)
			{
				int32 X, Y, Layer;
				if (NavMesh->GetNavMeshTileXY(TileIndex, X, Y, Layer))
				{
					const FBox TileBoundingBox = NavMesh->GetNavMeshTileBounds(TileIndex);
					FVector TileLabelLocation = TileBoundingBox.GetCenter();
					TileLabelLocation.Z = TileBoundingBox.Max.Z;

					FNavLocation NavLocation(TileLabelLocation);
					if (!NavMesh->ProjectPoint(TileLabelLocation, NavLocation, FVector(NavMesh->TileSizeUU/100, NavMesh->TileSizeUU/100, TileBoundingBox.Max.Z-TileBoundingBox.Min.Z)))
					{
						NavMesh->ProjectPoint(TileLabelLocation, NavLocation, FVector(NavMesh->TileSizeUU/2, NavMesh->TileSizeUU/2, TileBoundingBox.Max.Z-TileBoundingBox.Min.Z));
					}

					if (NavMesh->bDrawTileLabels)
					{
						CurrentData->DebugLabels.Add(FNavMeshSceneProxyData::FDebugText(
							/*Location*/NavLocation.Location + CurrentData->NavMeshDrawOffset
							, /*Text*/FString::Printf(TEXT("(%d,%d:%d)"), X, Y, Layer)
							));
					}

					if (NavMesh->bDrawPolygonLabels || NavMesh->bDrawDefaultPolygonCost)
					{
						TArray<FNavPoly> Polys;
						NavMesh->GetPolysInTile(TileIndex, Polys);

						if (NavMesh->bDrawDefaultPolygonCost)
						{
							float DefaultCosts[RECAST_MAX_AREAS];
							float FixedCosts[RECAST_MAX_AREAS];

							NavMesh->GetDefaultQueryFilter()->GetAllAreaCosts(DefaultCosts, FixedCosts, RECAST_MAX_AREAS);

							for(int k = 0; k < Polys.Num(); ++k)
							{
								uint32 AreaID = NavMesh->GetPolyAreaID(Polys[k].Ref);

								CurrentData->DebugLabels.Add(FNavMeshSceneProxyData::FDebugText(
									/*Location*/Polys[k].Center + CurrentData->NavMeshDrawOffset
									, /*Text*/FString::Printf(TEXT("\\%.3f; %.3f\\"), DefaultCosts[AreaID], FixedCosts[AreaID])
									));
							}
						}
						else
						{
							for(int k = 0; k < Polys.Num(); ++k)
							{
								uint32 NavPolyIndex = 0;
								uint32 NavTileIndex = 0;
								NavMesh->GetPolyTileIndex(Polys[k].Ref, NavPolyIndex, NavTileIndex);

								CurrentData->DebugLabels.Add(FNavMeshSceneProxyData::FDebugText(
									/*Location*/Polys[k].Center + CurrentData->NavMeshDrawOffset
									, /*Text*/FString::Printf(TEXT("[%X:%X]"), NavTileIndex, NavPolyIndex)
									));
							}
						}
					}							

					if (NavMesh->bDrawTileBounds)
					{
						FBox TileBox = NavMesh->GetNavMeshTileBounds(TileIndex);

						float DrawZ = (TileBox.Min.Z + TileBox.Max.Z) * 0.5f;		// @hack average
						FVector LL(TileBox.Min.X, TileBox.Min.Y, DrawZ);
						FVector UR(TileBox.Max.X, TileBox.Max.Y, DrawZ);
						FVector UL(LL.X, UR.Y, DrawZ);
						FVector LR(UR.X, LL.Y, DrawZ);
						CurrentData->ThickLineItems.Add(FNavMeshSceneProxyData::FDebugThickLine(LL, UL, NavMeshRenderColor_TileBounds, DefaultEdges_LineThickness));
						CurrentData->ThickLineItems.Add(FNavMeshSceneProxyData::FDebugThickLine(UL, UR, NavMeshRenderColor_TileBounds, DefaultEdges_LineThickness));
						CurrentData->ThickLineItems.Add(FNavMeshSceneProxyData::FDebugThickLine(UR, LR, NavMeshRenderColor_TileBounds, DefaultEdges_LineThickness));
						CurrentData->ThickLineItems.Add(FNavMeshSceneProxyData::FDebugThickLine(LR, LL, NavMeshRenderColor_TileBounds, DefaultEdges_LineThickness));
					}
				}
			}
		}

		CurrentData->bSkipDistanceCheck = GIsEditor && (GEngine->GetDebugLocalPlayer() == NULL);
		CurrentData->bDrawClusters = NavMesh->bDrawClusters;
		NavMesh->FinishBatchQuery();

		// Draw Mesh
		if (NavMesh->bDrawClusters)
		{
			for (int32 Idx = 0; Idx < CurrentData->NavMeshGeometry.Clusters.Num(); ++Idx)
			{
				const TArray<int32>& MeshIndices = CurrentData->NavMeshGeometry.Clusters[Idx].MeshIndices;

				if (MeshIndices.Num() == 0)
				{
					continue;
				}

				FNavMeshSceneProxyData::FDebugMeshData DebugMeshData;
				DebugMeshData.ClusterColor = GetClusterColor(Idx);
				for (int32 VertIdx=0; VertIdx < MeshVerts.Num(); ++VertIdx)
				{
					AddVertexHelper(DebugMeshData, MeshVerts[VertIdx] + CurrentData->NavMeshDrawOffset, DebugMeshData.ClusterColor);
				}
				for (int32 TriIdx=0; TriIdx < MeshIndices.Num(); TriIdx+=3)
				{
					AddTriangleHelper(DebugMeshData, MeshIndices[TriIdx], MeshIndices[TriIdx+1], MeshIndices[TriIdx+2]);
				}

				CurrentData->MeshBuilders.Add(DebugMeshData);
			}
		}
		else if (NavMesh->bDrawNavMesh)
		{			
			for (int32 AreaType = 0; AreaType < RECAST_MAX_AREAS; ++AreaType)
			{
				const TArray<int32>& MeshIndices = CurrentData->NavMeshGeometry.AreaIndices[AreaType];

				if (MeshIndices.Num() == 0)
				{
					continue;
				}

				FNavMeshSceneProxyData::FDebugMeshData DebugMeshData;
				for (int32 VertIdx=0; VertIdx < MeshVerts.Num(); ++VertIdx)
				{
					AddVertexHelper(DebugMeshData, MeshVerts[VertIdx] + CurrentData->NavMeshDrawOffset, CurrentData->NavMeshColors[AreaType]);
				}
				for (int32 TriIdx=0; TriIdx < MeshIndices.Num(); TriIdx+=3)
				{
					AddTriangleHelper(DebugMeshData, MeshIndices[TriIdx], MeshIndices[TriIdx+1], MeshIndices[TriIdx+2]);
				}

				DebugMeshData.ClusterColor = CurrentData->NavMeshColors[AreaType];
				CurrentData->MeshBuilders.Add(DebugMeshData);
			}
		}

		if (NavMesh->bDrawPathCollidingGeometry)
		{
			// draw all geometry gathered in navoctree
			const FNavigationOctree* NavOctree = NavMesh->GetWorld()->GetNavigationSystem()->GetNavOctree();

			TArray<FVector> PathCollidingGeomVerts;
			TArray <int32> PathCollidingGeomIndices;
			for (FNavigationOctree::TConstIterator<> It(*NavOctree); It.HasPendingNodes(); It.Advance())
			{
				const FNavigationOctree::FNode& Node = It.GetCurrentNode();
				for (FNavigationOctree::ElementConstIt ElementIt(Node.GetElementIt()); ElementIt; ElementIt++)
				{
					const FNavigationOctreeElement& Element = *ElementIt;
					if (Element.ShouldUseGeometry(&NavMesh->NavDataConfig) && Element.Data.CollisionData.Num())
					{
						const FRecastGeometryCache CachedGeometry(Element.Data.CollisionData.GetData());
						AppendGeometry(PathCollidingGeomVerts, PathCollidingGeomIndices, CachedGeometry.Verts, CachedGeometry.Header.NumVerts, CachedGeometry.Indices, CachedGeometry.Header.NumFaces);
					}
				}
				FOREACH_OCTREE_CHILD_NODE(ChildRef)
				{
					if (Node.HasChild(ChildRef))
					{
						It.PushChild(ChildRef);
					}
				}
			}
			CurrentData->PathCollidingGeomIndices = PathCollidingGeomIndices;
			for (const auto& Vertex : PathCollidingGeomVerts)
			{
				CurrentData->PathCollidingGeomVerts.Add(FDynamicMeshVertex(Vertex));
			}

		}

		if (CurrentData->NavMeshGeometry.BuiltMeshIndices.Num() > 0)
		{
			FNavMeshSceneProxyData::FDebugMeshData DebugMeshData;
			for (int32 VertIdx=0; VertIdx < MeshVerts.Num(); ++VertIdx)
			{
				AddVertexHelper(DebugMeshData, MeshVerts[VertIdx] + CurrentData->NavMeshDrawOffset, NavMeshRenderColor_RecastTileBeingRebuilt);
			}
			DebugMeshData.Indices.Append(CurrentData->NavMeshGeometry.BuiltMeshIndices);
			DebugMeshData.ClusterColor = NavMeshRenderColor_RecastTileBeingRebuilt;
			CurrentData->MeshBuilders.Add(DebugMeshData);

			// updates should be requested by FRecastNavMeshGenerator::TickAsyncBuild after tiles were refreshed
		}

		if (NavMesh->bDrawClusters)
		{
			for (int i = 0; i < CurrentData->NavMeshGeometry.ClusterLinks.Num(); i++)
			{
				const FRecastDebugGeometry::FClusterLink& CLink = CurrentData->NavMeshGeometry.ClusterLinks[i];
				const FVector V0 = CLink.FromCluster + CurrentData->NavMeshDrawOffset;
				const FVector V1 = CLink.ToCluster + CurrentData->NavMeshDrawOffset + FVector(0,0,20.0f);

				CacheArc(CurrentData->ClusterLinkLines, V0, V1, 0.4f, 4, FColor::Black, ClusterLinkLines_LineThickness);
				const FVector VOffset(0, 0, FVector::Dist(V0, V1) * 1.333f);
				CacheArrowHead(CurrentData->ClusterLinkLines, V1, V0+VOffset, 30.f, FColor::Black, ClusterLinkLines_LineThickness);
			}
		}

		// cache segment links
		if (NavMesh->bDrawNavLinks)
		{
			for (int32 iArea = 0; iArea < RECAST_MAX_AREAS; iArea++)
			{
				const TArray<int32>& Indices = CurrentData->NavMeshGeometry.OffMeshSegmentAreas[iArea];
				FNavMeshSceneProxyData::FDebugMeshData DebugMeshData;
				int32 VertBase = 0;

				for (int32 i = 0; i < Indices.Num(); i++)
				{
					FRecastDebugGeometry::FOffMeshSegment& SegInfo = CurrentData->NavMeshGeometry.OffMeshSegments[Indices[i]];
					const FVector A0 = SegInfo.LeftStart + CurrentData->NavMeshDrawOffset;
					const FVector A1 = SegInfo.LeftEnd + CurrentData->NavMeshDrawOffset;
					const FVector B0 = SegInfo.RightStart + CurrentData->NavMeshDrawOffset;
					const FVector B1 = SegInfo.RightEnd + CurrentData->NavMeshDrawOffset;
					const FVector Edge0 = B0 - A0;
					const FVector Edge1 = B1 - A1;
					const float Len0 = Edge0.Size();
					const float Len1 = Edge1.Size();
					const FColor SegColor = DarkenColor(CurrentData->NavMeshColors[SegInfo.AreaID]);
					const FColor ColA = (SegInfo.ValidEnds & FRecastDebugGeometry::OMLE_Left) ? FColor::White : FColor::Black;
					const FColor ColB = (SegInfo.ValidEnds & FRecastDebugGeometry::OMLE_Right) ? FColor::White : FColor::Black;

					const int32 NumArcPoints = 8;
					const float ArcPtsScale = 1.0f / NumArcPoints;

					FVector Prev0 = EvalArc(A0, Edge0, Len0*0.25f, 0);
					FVector Prev1 = EvalArc(A1, Edge1, Len1*0.25f, 0);
					AddVertexHelper(DebugMeshData, Prev0, ColA);
					AddVertexHelper(DebugMeshData, Prev1, ColA);
					for (int32 j = 1; j <= NumArcPoints; j++)
					{
						const float u = j * ArcPtsScale;
						FVector Pt0 = EvalArc(A0, Edge0, Len0*0.25f, u);
						FVector Pt1 = EvalArc(A1, Edge1, Len1*0.25f, u);

						AddVertexHelper(DebugMeshData, Pt0, (j == NumArcPoints) ? ColB : FColor::White);
						AddVertexHelper(DebugMeshData, Pt1, (j == NumArcPoints) ? ColB : FColor::White);

						AddTriangleHelper(DebugMeshData, VertBase+0, VertBase+2, VertBase+1);
						AddTriangleHelper(DebugMeshData, VertBase+2, VertBase+3, VertBase+1);
						AddTriangleHelper(DebugMeshData, VertBase+0, VertBase+1, VertBase+2);
						AddTriangleHelper(DebugMeshData, VertBase+2, VertBase+1, VertBase+3);

						VertBase += 2;
						Prev0 = Pt0;
						Prev1 = Pt1;
					}
					VertBase += 2;

					DebugMeshData.ClusterColor = SegColor;
				}

				if (DebugMeshData.Indices.Num())
				{
					CurrentData->MeshBuilders.Add(DebugMeshData);
				}
			}
		}

		CurrentData->NavMeshGeometry.PolyEdges.Empty();
		CurrentData->NavMeshGeometry.NavMeshEdges.Empty();
	}
Exemple #18
0
void AHUD::GetActorsInSelectionRectangle(TSubclassOf<class AActor> ClassFilter, const FVector2D& FirstPoint, const FVector2D& SecondPoint, TArray<AActor*>& OutActors, bool bIncludeNonCollidingComponents, bool bActorMustBeFullyEnclosed)
{
	// Because this is a HUD function it is likely to get called each tick,
	// so make sure any previous contents of the out actor array have been cleared!
	OutActors.Reset();

	//Create Selection Rectangle from Points
	FBox2D SelectionRectangle(0);

	//This method ensures that an appropriate rectangle is generated, 
	//		no matter what the coordinates of first and second point actually are.
	SelectionRectangle += FirstPoint;
	SelectionRectangle += SecondPoint;


	//The Actor Bounds Point Mapping
	const FVector BoundsPointMapping[8] =
	{
		FVector(1, 1, 1),
		FVector(1, 1, -1),
		FVector(1, -1, 1),
		FVector(1, -1, -1),
		FVector(-1, 1, 1),
		FVector(-1, 1, -1),
		FVector(-1, -1, 1),
		FVector(-1, -1, -1)
	};

	//~~~

	//For Each Actor of the Class Filter Type
	for (TActorIterator<AActor> Itr(GetWorld(), ClassFilter); Itr; ++Itr)
	{
		AActor* EachActor = *Itr;

		//Get Actor Bounds				//casting to base class, checked by template in the .h
		const FBox EachActorBounds = Cast<AActor>(EachActor)->GetComponentsBoundingBox(bIncludeNonCollidingComponents); /* All Components? */

		//Center
		const FVector BoxCenter = EachActorBounds.GetCenter();

		//Extents
		const FVector BoxExtents = EachActorBounds.GetExtent();

		// Build 2D bounding box of actor in screen space
		FBox2D ActorBox2D(0);
		for (uint8 BoundsPointItr = 0; BoundsPointItr < 8; BoundsPointItr++)
		{
			// Project vert into screen space.
			const FVector ProjectedWorldLocation = Project(BoxCenter + (BoundsPointMapping[BoundsPointItr] * BoxExtents));
			// Add to 2D bounding box
			ActorBox2D += FVector2D(ProjectedWorldLocation.X, ProjectedWorldLocation.Y);
		}

		//Selection Box must fully enclose the Projected Actor Bounds
		if (bActorMustBeFullyEnclosed)
		{
			if(SelectionRectangle.IsInside(ActorBox2D))
			{
				OutActors.Add(Cast<AActor>(EachActor));
			}
		}
		//Partial Intersection with Projected Actor Bounds
		else
		{
			if (SelectionRectangle.Intersect(ActorBox2D))
			{
				OutActors.Add(Cast<AActor>(EachActor));
			}
		}
	}
}