131 - Spawning Rocket Trails

Source/Blaster/Blaster.Build.cs

@@ -8,7 +8,7 @@ public class Blaster : ModuleRules
 	{
 		PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;
 	
-		PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "MultiplayerSessions", "OnlineSubsystem", "OnlineSubsystemSteam" });
+		PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "Niagara" });
 
 		PrivateDependencyModuleNames.AddRange(new string[] {  });
 

Source/Blaster/Weapon/Projectile.h

@@ -25,12 +25,18 @@ protected:
 
 	UPROPERTY(EditAnywhere)
 	float Damage = 20.f;
-	
-private:	
 
 	UPROPERTY(EditAnywhere)
-	class UBoxComponent* CollisionBox;
+	class UParticleSystem* ImpactParticles;
 
+	UPROPERTY(EditAnywhere)
+	class USoundCue* ImpactSound;
+	
+	UPROPERTY(EditAnywhere)
+	class UBoxComponent* CollisionBox;
+	
+private:	
+	
 	UPROPERTY(VisibleAnywhere)
 	class UProjectileMovementComponent* ProjectileMovementComponent;
 
@@ -39,10 +45,4 @@ private:
 
 	UPROPERTY()
 	class UParticleSystemComponent* TracerComponent;
-
-	UPROPERTY(EditAnywhere)
-	UParticleSystem* ImpactParticles;
-
-	UPROPERTY(EditAnywhere)
-	class USoundCue* ImpactSound;
 };

Source/Blaster/Weapon/ProjectileRocket.cpp

@@ -4,6 +4,11 @@
 #include "ProjectileRocket.h"
 
 #include "Kismet/GameplayStatics.h"
+#include "NiagaraFunctionLibrary.h"
+#include "NiagaraComponent.h"
+#include "Components/AudioComponent.h"
+#include "Components/BoxComponent.h"
+#include "Sound/SoundCue.h"
 
 AProjectileRocket::AProjectileRocket()
 {
@@ -12,10 +17,59 @@ AProjectileRocket::AProjectileRocket()
 	RocketMesh->SetCollisionEnabled(ECollisionEnabled::NoCollision);
 }
 
+void AProjectileRocket::Destroyed()
+{
+}
+
+void AProjectileRocket::BeginPlay()
+{
+	Super::BeginPlay();
+
+	if (!HasAuthority())
+	{
+		CollisionBox->OnComponentHit.AddDynamic(this, &AProjectileRocket::OnHit);
+	}
+	
+	if (TrailSystem)
+	{
+		TrailSystemComponent = UNiagaraFunctionLibrary::SpawnSystemAttached(
+			TrailSystem,
+			GetRootComponent(),
+			FName(),
+			GetActorLocation(),
+			GetActorRotation(),
+			EAttachLocation::KeepWorldPosition,
+			false
+		);
+	}
+	if (ProjectileLoop && LoopingSoundAttenuation)
+	{
+		ProjectileLoopComponent = UGameplayStatics::SpawnSoundAttached(
+			ProjectileLoop,
+			GetRootComponent(),
+			FName(),
+			GetActorLocation(),
+			EAttachLocation::KeepWorldPosition,
+			false,
+			1.f,
+			1.f,
+			0.f,
+			LoopingSoundAttenuation,
+			static_cast<USoundConcurrency*>(nullptr),
+			false
+		);
+	}
+}
+
+void AProjectileRocket::DestroyTimerFinished()
+{
+	Destroy();
+}
+
 void AProjectileRocket::OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, FVector NormalImpulse, const FHitResult& Hit)
 {
 	APawn* FiringPawn = GetInstigator();
-	if (FiringPawn)
+	if (FiringPawn && HasAuthority())
 	{
 		AController* FiringController = FiringPawn->GetController();
 		if (FiringController)
@@ -35,5 +89,36 @@ void AProjectileRocket::OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor,
 			);
 		}
 	}
-	Super::OnHit(HitComp, OtherActor, OtherComp, NormalImpulse, Hit);
+
+	GetWorldTimerManager().SetTimer(
+		DestroyTimer,
+		this,
+		&AProjectileRocket::DestroyTimerFinished,
+		DestroyTime
+	);
+
+	if (ImpactParticles)
+	{
+		UGameplayStatics::SpawnEmitterAtLocation(GetWorld(), ImpactParticles, GetActorTransform());
+	}
+	if (ImpactSound)
+	{
+		UGameplayStatics::PlaySoundAtLocation(this, ImpactSound, GetActorLocation());
+	}
+	if (RocketMesh)
+	{
+		RocketMesh->SetVisibility(false);
+	}
+	if (CollisionBox)
+	{
+		CollisionBox->SetCollisionEnabled(ECollisionEnabled::NoCollision);
+	}
+	if (TrailSystemComponent && TrailSystemComponent->GetSystemInstanceController().IsValid())
+	{
+		TrailSystemComponent->GetSystemInstanceController()->Deactivate();
+	}
+	if (ProjectileLoopComponent && ProjectileLoopComponent->IsPlaying())
+	{
+		ProjectileLoopComponent->Stop();
+	}
 }

Source/Blaster/Weapon/ProjectileRocket.h

@@ -15,13 +15,34 @@ class BLASTER_API AProjectileRocket : public AProjectile
 	GENERATED_BODY()
 public:
 	AProjectileRocket();
-	
+	virtual void Destroyed() override;
 protected:
 	
 	virtual void OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, FVector NormalImpulse, const FHitResult& Hit) override;
+	virtual void BeginPlay() override;
+	void DestroyTimerFinished();
+	
+	UPROPERTY(EditAnywhere)
+	class UNiagaraSystem* TrailSystem;
 
+	UPROPERTY()
+	class UNiagaraComponent* TrailSystemComponent;
+
+	UPROPERTY(EditAnywhere)
+	USoundCue* ProjectileLoop;
+
+	UPROPERTY()
+	UAudioComponent* ProjectileLoopComponent;
+
+	UPROPERTY(EditAnywhere)
+	USoundAttenuation* LoopingSoundAttenuation;
 private:
 
 	UPROPERTY(VisibleAnywhere)
 	UStaticMeshComponent* RocketMesh;
+	
+	FTimerHandle DestroyTimer;
+
+	UPROPERTY(EditAnywhere)
+	float DestroyTime = 3.f;
 };