89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "InteractionMechanic.h"
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#include "ToolDataVisualizer.h"
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#include "FrameTypes.h"
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#include "Selection/SelectClickedAction.h"
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#include "ConstructionPlaneMechanic.generated.h"
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#define UE_API MODELINGCOMPONENTS_API
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class ULocalSingleClickInputBehavior;
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class UCombinedTransformGizmo;
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class UTransformProxy;
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class IClickBehaviorTarget;
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class USingleClickInputBehavior;
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/**
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* UConstructionPlaneMechanic implements an interaction in which a 3D plane can be
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* positioned using the standard 3D Gizmo, or placed at hit-locations in the existing scene.
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* A grid in the plane can optionally be rendered.
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*/
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UCLASS(MinimalAPI)
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class UConstructionPlaneMechanic : public UInteractionMechanic
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{
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GENERATED_BODY()
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public:
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/** Replace this to externally control if plane can be updated */
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TUniqueFunction<bool()> CanUpdatePlaneFunc = []() { return true; };
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bool bShowGrid = true;
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UE::Geometry::FFrame3d Plane;
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DECLARE_MULTICAST_DELEGATE(OnConstructionPlaneChangedEvent);
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OnConstructionPlaneChangedEvent OnPlaneChanged;
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public:
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UE_API virtual void Setup(UInteractiveTool* ParentTool) override;
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UE_API virtual void Shutdown() override;
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UE_API virtual void Render(IToolsContextRenderAPI* RenderAPI) override;
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UE_API virtual void Tick(float DeltaTime) override;
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UE_API void Initialize(UWorld* TargetWorld, const UE::Geometry::FFrame3d& InitialPlane);
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UE_API void SetDrawPlaneFromWorldPos(const FVector3d& Position, const FVector3d& Normal, bool bIgnoreNormal);
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/**
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* Sets the plane without broadcasting OnPlaneChanged. Useful when the user of the tool wants to change
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* the plane through some other means. Better than setting the Plane field directly because this function
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* properly deals with the gizmo.
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*/
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UE_API void SetPlaneWithoutBroadcast(const UE::Geometry::FFrame3d& Plane);
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UE_API void UpdateClickPriority(FInputCapturePriority NewPriority);
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public:
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UPROPERTY()
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TObjectPtr<UCombinedTransformGizmo> PlaneTransformGizmo;
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UPROPERTY()
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TObjectPtr<UTransformProxy> PlaneTransformProxy;
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/**
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* This is the behavior target used for the Ctrl+click behavior that sets the plane
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* in the world, exposed here so that the user can modify it after Setup() if needed.
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* By default, Setup() will have it call SetDrawPlaneFromWorldPos.
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*/
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TUniquePtr<FSelectClickedAction> SetPlaneCtrlClickBehaviorTarget;
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protected:
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UPROPERTY()
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TObjectPtr<USingleClickInputBehavior> ClickToSetPlaneBehavior;
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/** This is the behavior and behavior target used for the Shift+click behavior that sets the gizmo's position in the world. */
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UPROPERTY()
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TObjectPtr<ULocalSingleClickInputBehavior> MiddleClickToSetGizmoBehavior;
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UE_API void TransformChanged(UTransformProxy* Proxy, FTransform Transform);
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};
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#undef UE_API
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