Millumin spline movement how to#

define the positions of the points and tangentsĬonst FVector StartPoint = SplineComponent->GetLocationAtSplinePoint(SplineCount, ESplineCoordinateSpace::Type::Local) Ĭonst FVector StartTangent = SplineComponent->GetTangentAtSplinePoint(SplineCount, ESplineCoordinateSpace::Type::Local) Ĭonst FVector EndPoint = SplineComponent->GetLocationAtSplinePoint(SplineCount + 1, ESplineCoordinateSpace::Type::Local) Ĭonst FVector EndTangent = SplineComponent->GetTangentAtSplinePoint(SplineCount + 1, ESplineCoordinateSpace::Type::Local) SplineMesh->AttachToComponent(SplineComponent, FAttachmentTransformRules::KeepRelativeTransform) SplineMesh->SetMobility(EComponentMobility::Movable) SplineMesh->CreationMethod = EComponentCreationMethod::UserConstructionScript SplineMesh->SetForwardAxis(ForwardAxis, true) Material = DefaultMeshDetails->DefaultMaterial Material = DefaultMeshDetails->AlternativeMaterial Įlse if(DefaultMeshDetails->DefaultMaterial) If(DefaultMeshDetails->AlternativeMaterial & SplineCount > 0 & SplineCount % 2 = 0) Material = EndMeshDetails->DefaultMaterial Material = StartMeshDetails->DefaultMaterial Įlse if(EndMeshDetails & EndMeshDetails->Mesh & SplinePoints > 2 & SplineCount = (SplinePoints - 2))įorwardAxis = EndMeshDetails->ForwardAxis If(StartMeshDetails & StartMeshDetails->Mesh & SplineCount = 0)įorwardAxis = StartMeshDetails->ForwardAxis UStaticMesh* StaticMesh = DefaultMeshDetails->Mesh ĮSplineMeshAxis::Type ForwardAxis = DefaultMeshDetails->ForwardAxis exit if we don't have a default mesh to work withĬonst int32 SplinePoints = SplineComponent->GetNumberOfSplinePoints() įor(int SplineCount = 0 SplineCount (this, USplineMeshComponent::StaticClass()) If(SplineMeshMap.Contains(ESplineMeshType::DEFAULT))ĭefaultMeshDetails = SplineMeshMap.Find(ESplineMeshType::DEFAULT) If(SplineMeshMap.Contains(ESplineMeshType::END))ĮndMeshDetails = SplineMeshMap.Find(ESplineMeshType::END) įSplineMeshDetails* DefaultMeshDetails = nullptr StartMeshDetails = SplineMeshMap.Find(ESplineMeshType::START) įSplineMeshDetails* EndMeshDetails = nullptr If(SplineMeshMap.Contains(ESplineMeshType::START)) If(SplineComponent & SplineMeshMap.Num() > 0)įSplineMeshDetails* StartMeshDetails = nullptr void ASplineActor::OnConstruction(const FTransform& Transform)

To do this we want to override the OnConstruction method in order to allow us to specify the Spline Mesh Components during the process of modifying our spline within the editor. With our spline component setup we can proceed with attaching Spline Mesh Components by iterating over the available spline points. SplineComponent = CreateDefaultSubobject('Spline') You can turn this off to improve performance if you don't need it. Set this actor to call Tick() every frame. Inside our constructor we simply instantiate it. UPROPERTY(VisibleAnywhere, Category = 'Spline')

Millumin spline movement how to#

Let’s dive into how to initialize a Spline Component. In our case though we are going to use it for prop building. Splines can also provide support for navigation by being used as a path for something or someone to move along. So why do we care about splines ? Well splines allow us to construct various objects within our world by providing us with easily extensible and modifiable joined sets of meshes.