DuOtto
161 lines
4.5 KiB
C++
161 lines
4.5 KiB
C++
// Fill out your copyright notice in the Description page of Project Settings.
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#include "MyTableIconActors.h"
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#include "KismetProceduralMeshLibrary.h"
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#include "TableIconActor.h"
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#include "Kismet/GameplayStatics.h"
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#include "Camera/CameraActor.h"
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ATableIconLineActor::ATableIconLineActor()
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{
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PrimaryActorTick.bCanEverTick = false; // purely driven by SetPoints
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USceneComponent* Root = CreateDefaultSubobject<USceneComponent>(TEXT("Root"));
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SetRootComponent(Root);
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MeshComponent = CreateDefaultSubobject<UProceduralMeshComponent>(TEXT("LineMesh"));
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MeshComponent->SetupAttachment(RootComponent);
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MeshComponent->SetCastShadow(false);
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MeshComponent->SetCollisionEnabled(ECollisionEnabled::NoCollision);
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}
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void ATableIconLineActor::SetPoints(const TArray<FVector>& NewPoints)
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{
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const FTransform& ActorTransform = GetActorTransform();
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Points.Reset(NewPoints.Num());
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Points = NewPoints;
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MeshComponent->ClearMeshSection(0);
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BuildLineMesh();
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if (LineMaterial) MeshComponent->SetMaterial(0, LineMaterial);
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}
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void ATableIconLineActor::BuildLineMesh()
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{
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TArray<FVector> Vertices;
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TArray<int32> Triangles;
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TArray<FVector> Normals;
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TArray<FVector2D> UVs;
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TArray<FColor> Colors;
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TArray<FProcMeshTangent> Tangents;
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FVector Direction = FVector::ZeroVector;
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const float HalfLineThickness = LineThickness * 0.5f;
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for (int32 i = 0; i < Points.Num() - 1; i++) {
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const FVector& PointA = Points[i];
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const FVector& PointB = Points[i + 1];
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Direction = (PointB - PointA).GetSafeNormal();
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const FVector Right = FVector::CrossProduct(FVector::UpVector, Direction).GetSafeNormal();
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const FVector Offset = Right * (LineThickness * 0.5f);
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int32 Base = Vertices.Num();
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Vertices.Add(PointA - Offset);
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Vertices.Add(PointA + Offset);
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Vertices.Add(PointB + Offset);
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Vertices.Add(PointB - Offset);
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Triangles.Add(Base + 0);
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Triangles.Add(Base + 1);
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Triangles.Add(Base + 2);
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Triangles.Add(Base + 0);
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Triangles.Add(Base + 2);
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Triangles.Add(Base + 3);
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}
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for (int i = 0; i < Vertices.Num(); i++)
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{
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Normals.Add(FVector::UpVector);
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}
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for (int i = 0; i < Vertices.Num(); i++)
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{
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UVs.Add(FVector2D::ZeroVector);
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}
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for (int i = 0; i < Vertices.Num(); i++)
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{
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Colors.Add(FColor::Red);
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}
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for (int i = 0; i < Vertices.Num(); i++)
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{
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Tangents.Add(FProcMeshTangent(Direction, false));
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}
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MeshComponent->CreateMeshSection(0, Vertices, Triangles, Normals, UVs, Colors, Tangents, false);
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}
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ATableIconWidgetActor::ATableIconWidgetActor()
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{
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USceneComponent* Root = CreateDefaultSubobject<USceneComponent>(TEXT("Root"));
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SetRootComponent(Root);
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PrimaryActorTick.bCanEverTick = true;
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WidgetComponent = CreateDefaultSubobject<UWidgetComponent>(TEXT("WidgetComponent"));
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WidgetComponent->SetupAttachment(RootComponent);
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WidgetComponent->SetDrawAtDesiredSize(true);
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WidgetComponent->SetWidgetSpace(EWidgetSpace::World);
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WidgetComponent->SetCollisionEnabled(ECollisionEnabled::NoCollision);
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WidgetInteraction = CreateDefaultSubobject<UWidgetInteractionComponent>(TEXT("WidgetInteraction"));
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WidgetInteraction->SetupAttachment(RootComponent);
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WidgetInteraction->InteractionSource = EWidgetInteractionSource::Custom;
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WidgetInteraction->InteractionDistance = 10.f;
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}
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void ATableIconWidgetActor::Tick(float DeltaTime)
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{
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Super::Tick(DeltaTime);
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APlayerCameraManager* CamManager = UGameplayStatics::GetPlayerCameraManager(this, 0);
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if (!CamManager) return;
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FVector CamLocation = CamManager->GetCameraLocation();
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FVector ToCamera = (CamLocation - GetActorLocation()).GetSafeNormal();
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// Only rotate on yaw � keeps widget flat relative to table
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ToCamera.Z = 0.f;
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if (!ToCamera.IsNearlyZero())
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SetActorRotation(ToCamera.ToOrientationRotator());
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}
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void ATableIconWidgetActor::SetWidgetClass(TSubclassOf<UUserWidget> InWidgetClass)
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{
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if (!InWidgetClass) return;
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WidgetComponent->SetWidgetClass(InWidgetClass);
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WidgetComponent->InitWidget();
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}
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UUserWidget* ATableIconWidgetActor::GetWidget() const
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{
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return WidgetComponent->GetUserWidgetObject();
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}
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void ATableIconLabelActor::SetDistance(float RealWorldUnits, const FString& UnitSuffix)
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{
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int32 Snapped = FMath::RoundToInt(RealWorldUnits);
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SetLabelText(FString::Printf(TEXT("%d%s"), Snapped, *UnitSuffix));
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} |