111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
// Project Lab - NHTV Igad
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#include "UnrealProject.h"
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#include "ConeComponent.h"
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#define CONEARCVERTEXCOUNT 50
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// Sets default values for this component's properties
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UConeComponent::UConeComponent(const FObjectInitializer& ObjectInitializer) : Super(ObjectInitializer)
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{
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ShapeColor = FColor(223, 149, 157, 255);
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bUseEditorCompositing = true;
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}
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void UConeComponent::BeginPlay()
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{
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UpdateCapsule();
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Super::BeginPlay();
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}
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void UConeComponent::UpdateCapsule()
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{
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SetCapsuleSize(coneRadius, 400);
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}
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// Create sceneproxy to show the cone in the editor
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FPrimitiveSceneProxy* UConeComponent::CreateSceneProxy()
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{
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class FDrawConeSceneProxy : public FPrimitiveSceneProxy
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{
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public:
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const UConeComponent* component;
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FDrawConeSceneProxy(const UConeComponent* InComponent)
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: FPrimitiveSceneProxy(InComponent)
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, bDrawOnlyIfSelected(InComponent->bDrawOnlyIfSelected)
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, component(InComponent)
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{
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bWillEverBeLit = false;
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}
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virtual void GetDynamicMeshElements(const TArray<const FSceneView*>& Views, const FSceneViewFamily& ViewFamily, uint32 VisibilityMap, FMeshElementCollector& Collector) const
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{
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QUICK_SCOPE_CYCLE_COUNTER(STAT_GetDynamicMeshElements_DrawDynamicElements);
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for (int32 ViewIndex = 0; ViewIndex < Views.Num(); ViewIndex++)
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{
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if (VisibilityMap & (1 << ViewIndex))
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{
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const FSceneView* View = Views[ViewIndex];
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const FLinearColor DrawCapsuleColor = GetViewSelectionColor(ShapeColor, *View, IsSelected(), IsHovered(), false, IsIndividuallySelected());
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FPrimitiveDrawInterface* PDI = Collector.GetPDI(ViewIndex);
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FTransform transform = component->GetComponentTransform();
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FVector base = transform.GetLocation();
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const float scale = 1.0f / 180.0f * PI;
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float baseRot = (360.0f - transform.GetRotation().Euler().Z) * scale;
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FVector scaleVec = transform.GetScale3D();
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FVector forward = FVector(scaleVec.X, 0, 0);
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FVector right = FVector(0, scaleVec.Y, 0);
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float angle = (component->coneAngle) / 180.0f * PI;
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FVector linePoints[CONEARCVERTEXCOUNT];
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float anglestep = (angle) / (CONEARCVERTEXCOUNT-1);
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float rot = baseRot - angle * 0.5f;
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for (int i = 0; i < CONEARCVERTEXCOUNT;i++)
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{
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float f = cosf(rot);
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float r = sinf(rot);
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linePoints[i] = base + (forward * f - right * r) * component->coneRadius;
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rot += anglestep;
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}
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for (int i = 0; i < CONEARCVERTEXCOUNT-1; i++)
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{
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PDI->DrawLine(linePoints[i], linePoints[i + 1], ShapeColor, SDPG_World);
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}
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PDI->DrawLine(base, linePoints[0], ShapeColor, SDPG_World);
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PDI->DrawLine(base, linePoints[CONEARCVERTEXCOUNT - 1], ShapeColor, SDPG_World);
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}
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}
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}
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virtual FPrimitiveViewRelevance GetViewRelevance(const FSceneView* View) const override
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{
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const bool bVisible = !bDrawOnlyIfSelected || IsSelected();
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FPrimitiveViewRelevance Result;
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Result.bDrawRelevance = IsShown(View) && bVisible;
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Result.bDynamicRelevance = true;
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Result.bShadowRelevance = IsShadowCast(View);
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Result.bEditorPrimitiveRelevance = UseEditorCompositing(View);
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return Result;
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}
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virtual uint32 GetMemoryFootprint(void) const override { return(sizeof(*this) + GetAllocatedSize()); }
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uint32 GetAllocatedSize(void) const { return(FPrimitiveSceneProxy::GetAllocatedSize()); }
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private:
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const uint32 bDrawOnlyIfSelected : 1;
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const FColor ShapeColor = FColor(255,0,0,255);
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const FTransform transform;
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};
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return new FDrawConeSceneProxy(this);
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}
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