120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "LyraCameraComponent.h"
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#include "LyraCameraMode.h"
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#include "GameFramework/Pawn.h"
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#include "GameFramework/PlayerController.h"
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#include "Engine/Canvas.h"
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ULyraCameraComponent::ULyraCameraComponent(const FObjectInitializer& ObjectInitializer)
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: Super(ObjectInitializer)
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{
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CameraModeStack = nullptr;
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FieldOfViewOffset = 0.0f;
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}
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void ULyraCameraComponent::OnRegister()
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{
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Super::OnRegister();
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if (!CameraModeStack)
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{
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CameraModeStack = NewObject<ULyraCameraModeStack>(this);
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check(CameraModeStack);
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}
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}
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void ULyraCameraComponent::GetCameraView(float DeltaTime, FMinimalViewInfo& DesiredView)
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{
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check(CameraModeStack);
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UpdateCameraModes();
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FLyraCameraModeView CameraModeView;
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CameraModeStack->EvaluateStack(DeltaTime, CameraModeView);
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// Keep player controller in sync with the latest view.
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if (APawn* TargetPawn = Cast<APawn>(GetTargetActor()))
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{
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if (APlayerController* PC = TargetPawn->GetController<APlayerController>())
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{
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PC->SetControlRotation(CameraModeView.ControlRotation);
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}
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}
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// Apply any offset that was added to the field of view.
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CameraModeView.FieldOfView += FieldOfViewOffset;
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FieldOfViewOffset = 0.0f;
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// Keep camera component in sync with the latest view.
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SetWorldLocationAndRotation(CameraModeView.Location, CameraModeView.Rotation);
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FieldOfView = CameraModeView.FieldOfView;
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// Fill in desired view.
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DesiredView.Location = CameraModeView.Location;
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DesiredView.Rotation = CameraModeView.Rotation;
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DesiredView.FOV = CameraModeView.FieldOfView;
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DesiredView.OrthoWidth = OrthoWidth;
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DesiredView.OrthoNearClipPlane = OrthoNearClipPlane;
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DesiredView.OrthoFarClipPlane = OrthoFarClipPlane;
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DesiredView.AspectRatio = AspectRatio;
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DesiredView.bConstrainAspectRatio = bConstrainAspectRatio;
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DesiredView.bUseFieldOfViewForLOD = bUseFieldOfViewForLOD;
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DesiredView.ProjectionMode = ProjectionMode;
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// See if the CameraActor wants to override the PostProcess settings used.
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DesiredView.PostProcessBlendWeight = PostProcessBlendWeight;
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if (PostProcessBlendWeight > 0.0f)
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{
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DesiredView.PostProcessSettings = PostProcessSettings;
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}
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}
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void ULyraCameraComponent::UpdateCameraModes()
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{
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check(CameraModeStack);
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if (CameraModeStack->IsStackActivate())
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{
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if (DetermineCameraModeDelegate.IsBound())
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{
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if (const TSubclassOf<ULyraCameraMode> CameraMode = DetermineCameraModeDelegate.Execute())
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{
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CameraModeStack->PushCameraMode(CameraMode);
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}
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}
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}
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}
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void ULyraCameraComponent::DrawDebug(UCanvas* Canvas) const
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{
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check(Canvas);
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FDisplayDebugManager& DisplayDebugManager = Canvas->DisplayDebugManager;
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DisplayDebugManager.SetFont(GEngine->GetSmallFont());
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DisplayDebugManager.SetDrawColor(FColor::Yellow);
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DisplayDebugManager.DrawString(FString::Printf(TEXT("LyraCameraComponent: %s"), *GetNameSafe(GetTargetActor())));
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DisplayDebugManager.SetDrawColor(FColor::White);
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DisplayDebugManager.DrawString(FString::Printf(TEXT(" Location: %s"), *GetComponentLocation().ToCompactString()));
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DisplayDebugManager.DrawString(FString::Printf(TEXT(" Rotation: %s"), *GetComponentRotation().ToCompactString()));
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DisplayDebugManager.DrawString(FString::Printf(TEXT(" FOV: %f"), FieldOfView));
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check(CameraModeStack);
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CameraModeStack->DrawDebug(Canvas);
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}
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void ULyraCameraComponent::GetBlendInfo(float& OutWeightOfTopLayer, FGameplayTag& OutTagOfTopLayer) const
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{
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check(CameraModeStack);
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CameraModeStack->GetBlendInfo(/*out*/ OutWeightOfTopLayer, /*out*/ OutTagOfTopLayer);
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}
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