141 lines
4.3 KiB
C++
141 lines
4.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "BaseGizmos/GizmoElementHitTargets.h"
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#include "BaseGizmos/GizmoElementBase.h"
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#include "BaseGizmos/GizmoViewContext.h"
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#include "BaseGizmos/TransformProxy.h"
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#include "Engine/EngineTypes.h" // FHitResult
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#include UE_INLINE_GENERATED_CPP_BY_NAME(GizmoElementHitTargets)
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FInputRayHit UGizmoElementHitTarget::IsHit(const FInputDeviceRay& ClickPos) const
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{
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if (GizmoElement && GizmoViewContext && GizmoTransformProxy && (!Condition || Condition(ClickPos)))
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{
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UGizmoElementBase::FLineTraceTraversalState LineTraceState;
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LineTraceState.Initialize(GizmoViewContext, GizmoTransformProxy->GetTransform());
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return GizmoElement->LineTrace(GizmoViewContext, LineTraceState, ClickPos.WorldRay.Origin, ClickPos.WorldRay.Direction);
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}
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return FInputRayHit();
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}
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void UGizmoElementHitTarget::UpdateHoverState(bool bHovering)
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{
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if (!GizmoElement)
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{
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return;
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}
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if (bHovering)
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{
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GizmoElement->SetElementInteractionState(EGizmoElementInteractionState::Hovering);
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}
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// If this element is interacting, do not update the hover state. This is necessary because when transitioning
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// from hovering to interacting, the gizmo framework updates interacting to true before updating hovering to false.
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else if (GizmoElement->GetElementInteractionState() != EGizmoElementInteractionState::Interacting)
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{
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GizmoElement->SetElementInteractionState(EGizmoElementInteractionState::None);
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}
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}
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void UGizmoElementHitTarget::UpdateInteractingState(bool bInteracting)
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{
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if (!GizmoElement)
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{
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return;
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}
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if (bInteracting)
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{
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GizmoElement->SetElementInteractionState(EGizmoElementInteractionState::Interacting);
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}
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else
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{
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GizmoElement->SetElementInteractionState(EGizmoElementInteractionState::None);
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}
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}
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UGizmoElementHitTarget* UGizmoElementHitTarget::Construct(UGizmoElementBase* InGizmoElement, UGizmoViewContext* InGizmoViewContext, UObject* Outer)
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{
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UGizmoElementHitTarget* NewHitTarget = NewObject<UGizmoElementHitTarget>(Outer);
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NewHitTarget->GizmoElement = InGizmoElement;
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NewHitTarget->GizmoViewContext = InGizmoViewContext;
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return NewHitTarget;
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}
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FInputRayHit UGizmoElementHitMultiTarget::IsHit(const FInputDeviceRay& ClickPos) const
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{
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if (GizmoElement && GizmoViewContext && GizmoTransformProxy && (!Condition || Condition(ClickPos)))
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{
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UGizmoElementBase::FLineTraceTraversalState LineTraceState;
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LineTraceState.Initialize(GizmoViewContext, GizmoTransformProxy->GetTransform());
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return GizmoElement->LineTrace(GizmoViewContext, LineTraceState, ClickPos.WorldRay.Origin, ClickPos.WorldRay.Direction);
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}
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return FInputRayHit();
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}
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void UGizmoElementHitMultiTarget::UpdateHoverState(bool bInHovering, uint32 PartIdentifier)
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{
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if (!GizmoElement)
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{
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return;
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}
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if (bInHovering)
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{
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GizmoElement->UpdatePartInteractionState(EGizmoElementInteractionState::Hovering, PartIdentifier);
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}
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else
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{
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// If this element is interacting, do not update the hover state. This is necessary because when transitioning
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// from hovering to interacting, the gizmo framework updates interacting to true before updating hovering to false.
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TOptional<EGizmoElementInteractionState> InteractionStateResult = GizmoElement->GetPartInteractionState(PartIdentifier);
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if (InteractionStateResult.IsSet() && InteractionStateResult.GetValue() == EGizmoElementInteractionState::Interacting)
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{
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return;
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}
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GizmoElement->UpdatePartInteractionState(EGizmoElementInteractionState::None, PartIdentifier);
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}
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}
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void UGizmoElementHitMultiTarget::UpdateInteractingState(bool bInInteracting, uint32 PartIdentifier)
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{
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if (!GizmoElement)
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{
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return;
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}
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if (bInInteracting)
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{
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GizmoElement->UpdatePartInteractionState(EGizmoElementInteractionState::Interacting, PartIdentifier);
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}
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else
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{
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GizmoElement->UpdatePartInteractionState(EGizmoElementInteractionState::None, PartIdentifier);
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}
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}
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void UGizmoElementHitMultiTarget::UpdateHittableState(bool bHittable, uint32 PartIdentifier)
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{
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if (!GizmoElement)
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{
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return;
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}
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GizmoElement->UpdatePartHittableState(bHittable, PartIdentifier);
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}
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UGizmoElementHitMultiTarget* UGizmoElementHitMultiTarget::Construct(UGizmoElementBase* InGizmoElement, UGizmoViewContext* InGizmoViewContext, UObject* Outer)
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{
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UGizmoElementHitMultiTarget* NewHitTarget = NewObject<UGizmoElementHitMultiTarget>(Outer);
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NewHitTarget->GizmoElement = InGizmoElement;
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NewHitTarget->GizmoViewContext = InGizmoViewContext;
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return NewHitTarget;
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}
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