Add Camera Shake when player is damaged

Source/vampires/PlayerCharacter.cpp

@@ -29,6 +29,16 @@ APlayerCharacter::APlayerCharacter()
 	HealthBarWidgetComponent->SetTwoSided(true);
 	HealthBarWidgetComponent->SetBackgroundColor(FLinearColor(1, 1, 1, 0));
 	HealthBarWidgetComponent->SetCollisionEnabled(ECollisionEnabled::NoCollision);
+
+	CameraShakeTimelineComponent = CreateDefaultSubobject<UTimelineComponent>(TEXT("Camera Shake Timeline Component"));
+	CameraShakeTimelineComponent->SetDirectionPropertyName(FName("TimelineDirection"));
+	CameraShakeTimelineComponent->SetLooping(false);
+	CameraShakeTimelineComponent->SetTimelineLength(0.5f);
+	CameraShakeTimelineComponent->SetTimelineLengthMode(TL_TimelineLength);
+	CameraShakeTimelineComponent->SetPlaybackPosition(0.0f, false);
+
+	onTimelineCallback.BindUFunction(this, FName(TEXT("CameraShakeTimelineCallback")));
+	onTimelineFinishedCallback.BindUFunction(this, FName(TEXT("CameraShakeTimelineFinishedCallback")));
 }
 
 void APlayerCharacter::BeginPlay()
@@ -37,6 +47,14 @@ void APlayerCharacter::BeginPlay()
 
 	GetHealthComponent()->OnDamaged.AddDynamic(this, &APlayerCharacter::OnDamaged);
 	GetHealthComponent()->OnDeath.AddDynamic(this, &APlayerCharacter::OnDeath);
+
+	if (CameraShakeCurve != nullptr)
+	{
+		CameraShakeTimelineComponent->AddInterpFloat(CameraShakeCurve, onTimelineCallback);
+		CameraShakeTimelineComponent->SetTimelineFinishedFunc(onTimelineFinishedCallback);
+	}
+
+	PlayerCameraManager = GetWorld()->GetFirstPlayerController()->PlayerCameraManager;
 }
 
 void APlayerCharacter::Tick(float DeltaTime)
@@ -78,11 +96,7 @@ void APlayerCharacter::OnDamaged(FDamageInfo damageInfo)
 		UGameplayStatics::PlaySoundAtLocation(GetWorld(), OnDamagedSound, GetActorLocation());
 	}
 
-	APlayerController* playerController = UGameplayStatics::GetPlayerController(this, 0);
+	CameraShakeTimelineComponent->PlayFromStart();
-	if (playerController && CameraShake)
-	{
-		playerController->ClientStartCameraShake(CameraShake);
-	}
 }
 
 void APlayerCharacter::OnDeath(FDamageInfo damageInfo)
@@ -94,3 +108,17 @@ void APlayerCharacter::OnDeath(FDamageInfo damageInfo)
 
 	// TODO: End the game
 }
+
+void APlayerCharacter::CameraShakeTimelineCallback(float val)
+{
+	auto PlayerController = UGameplayStatics::GetPlayerController(GetWorld(), 0);
+	auto cameraActor = PlayerController->GetViewTarget();
+	cameraActor->SetActorLocation(FVector(FMath::RandRange(0.0f, CameraShakeStrength) * val, FMath::RandRange(0.0f, CameraShakeStrength) * val, 0.0f));
+}
+
+void APlayerCharacter::CameraShakeTimelineFinishedCallback()
+{
+	auto PlayerController = UGameplayStatics::GetPlayerController(GetWorld(), 0);
+	auto cameraActor = PlayerController->GetViewTarget();
+	cameraActor->SetActorLocation(FVector::ZeroVector);
+}

Source/vampires/PlayerCharacter.h

@@ -4,8 +4,10 @@
 
 #include "CoreMinimal.h"
 #include "VampireCharacter.h"
+#include "Components/TimelineComponent.h"
 #include "PlayerCharacter.generated.h"
 
+struct FDamageInfo;
 struct FInputActionInstance;
 class UWidgetComponent;
 class UWeaponInventoryComponent;
@@ -32,11 +34,25 @@ public:
 	UPROPERTY(EditAnywhere)
 	UWidgetComponent* HealthBarWidgetComponent;
 
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly)
+	TObjectPtr<UTimelineComponent> CameraShakeTimelineComponent = nullptr;
+	
 	UPROPERTY(EditAnywhere)
-	TSubclassOf<UCameraShakeBase> CameraShake;
+	TObjectPtr<UCurveFloat> CameraShakeCurve;
+
+	UPROPERTY(EditAnywhere)
+	float CameraShakeStrength = 100.0f;
+
+private:
+	
+	TObjectPtr<APlayerCameraManager> PlayerCameraManager = nullptr;
 	
 	APlayerCharacter();
 
+private:
+	FOnTimelineFloat onTimelineCallback;
+	FOnTimelineEventStatic onTimelineFinishedCallback;
+
 protected:
 	virtual void BeginPlay() override;
 
@@ -53,4 +69,10 @@ private:
 
 	UFUNCTION()
 	virtual void OnDeath(FDamageInfo damageInfo);
+
+	UFUNCTION()
+	void CameraShakeTimelineCallback(float val);
+
+	UFUNCTION()
+	void CameraShakeTimelineFinishedCallback();
 };