142 - Projectile Grenades

Source/Blaster/Character/BlasterCharacter.cpp

@@ -137,7 +137,7 @@ void ABlasterCharacter::MulticastEliminated_Implementation()
 			GetActorLocation()
 		);
 	}
-	if (IsLocallyControlled() && GetEquippedWeapon()->GetWeaponType() == EWeaponType::EWT_SniperRifle && IsAiming())
+	if (IsLocallyControlled() && GetEquippedWeapon() && GetEquippedWeapon()->GetWeaponType() == EWeaponType::EWT_SniperRifle && IsAiming())
 	{
 		ShowSniperScopeWidget(false);
 	}

Source/Blaster/Weapon/Projectile.cpp

@@ -3,6 +3,7 @@
 
 #include "Projectile.h"
 
+#include "NiagaraFunctionLibrary.h"
 #include "Blaster/Blaster.h"
 #include "Components/BoxComponent.h"
 #include "Kismet/GameplayStatics.h"
@@ -50,6 +51,27 @@ void AProjectile::OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor, UPrimi
 	Destroy();
 }
 
+
+void AProjectile::Tick(float DeltaTime)
+{
+	Super::Tick(DeltaTime);
+}
+
+void AProjectile::StartDestroyTimer()
+{
+	GetWorldTimerManager().SetTimer(
+	DestroyTimer,
+	this,
+	&AProjectile::DestroyTimerFinished,
+	DestroyTime
+);
+}
+
+void AProjectile::DestroyTimerFinished()
+{
+	Destroy();
+}
+
 void AProjectile::Destroyed()
 {
 	Super::Destroyed();
@@ -65,7 +87,43 @@ void AProjectile::Destroyed()
 	}
 }
 
-void AProjectile::Tick(float DeltaTime)
+void AProjectile::SpawnTrailSystem()
 {
-	Super::Tick(DeltaTime);
+	if (TrailSystem)
+	{
+		TrailSystemComponent = UNiagaraFunctionLibrary::SpawnSystemAttached(
+			TrailSystem,
+			GetRootComponent(),
+			FName(),
+			GetActorLocation(),
+			GetActorRotation(),
+			EAttachLocation::KeepWorldPosition,
+			false
+		);
+	}
+}
+
+void AProjectile::ExplodeDamage()
+{
+	APawn* FiringPawn = GetInstigator();
+	if (FiringPawn && HasAuthority())
+	{
+		AController* FiringController = FiringPawn->GetController();
+		if (FiringController)
+		{
+			UGameplayStatics::ApplyRadialDamageWithFalloff(
+				this,
+				Damage,
+				10.f,
+				GetActorLocation(),
+				DamageInnerRadius,
+				DamageOuterRadius,
+				1.f,
+				UDamageType::StaticClass(),
+				TArray<AActor*>(),
+				this,
+				FiringController
+			);
+		}
+	}
 }

Source/Blaster/Weapon/Projectile.h

@@ -18,6 +18,10 @@ public:
 
 protected:
 	virtual void BeginPlay() override;
+	void StartDestroyTimer();
+	void DestroyTimerFinished();
+	void SpawnTrailSystem();
+	void ExplodeDamage();
 	
 	UFUNCTION()
 	virtual void OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, FVector NormalImpulse, const FHitResult& Hit);
@@ -37,6 +41,21 @@ protected:
 	
 	UPROPERTY(VisibleAnywhere)
 	class UProjectileMovementComponent* ProjectileMovementComponent;
+
+	UPROPERTY(EditAnywhere)
+	class UNiagaraSystem* TrailSystem;
+
+	UPROPERTY()
+	class UNiagaraComponent* TrailSystemComponent;
+	
+	UPROPERTY(VisibleAnywhere)
+	UStaticMeshComponent* ProjectileMesh;
+
+	UPROPERTY(EditAnywhere)
+	float DamageInnerRadius = 200.f;
+	
+	UPROPERTY(EditAnywhere)
+	float DamageOuterRadius = 500.f;
 	
 private:	
 	
@@ -45,4 +64,9 @@ private:
 
 	UPROPERTY()
 	class UParticleSystemComponent* TracerComponent;
+
+	FTimerHandle DestroyTimer;
+
+	UPROPERTY(EditAnywhere)
+	float DestroyTime = 3.f;
 };

Source/Blaster/Weapon/ProjectileGrenade.cpp

@@ -0,0 +1,67 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "ProjectileGrenade.h"
+
+#include "Blaster/Character/BlasterCharacter.h"
+#include "GameFramework/ProjectileMovementComponent.h"
+#include "Kismet/GameplayStatics.h"
+#include "Sound/SoundCue.h"
+
+AProjectileGrenade::AProjectileGrenade()
+{
+	ProjectileMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Grenade Mesh"));
+	ProjectileMesh->SetupAttachment(RootComponent);
+	ProjectileMesh->SetCollisionEnabled(ECollisionEnabled::NoCollision);
+	
+	ProjectileMovementComponent = CreateDefaultSubobject<UProjectileMovementComponent>(TEXT("ProjectileMovementComponent"));
+	ProjectileMovementComponent->bRotationFollowsVelocity = true;
+	ProjectileMovementComponent->SetIsReplicated(true);
+	ProjectileMovementComponent->bShouldBounce = true;
+}
+
+void AProjectileGrenade::BeginPlay()
+{
+	AActor::BeginPlay();
+
+	SpawnTrailSystem();
+	StartDestroyTimer();
+	ProjectileMovementComponent->OnProjectileBounce.AddDynamic(this, &AProjectileGrenade::OnBounce);
+}
+
+void AProjectileGrenade::OnBounce(const FHitResult& ImpactResult, const FVector& ImpactVelocity)
+{
+	if (ABlasterCharacter* BlasterCharacter = Cast<ABlasterCharacter>(ImpactResult.GetActor()))
+	{
+		const APawn* FiringPawn = GetInstigator();
+		if (FiringPawn && HasAuthority())
+		{
+			AController* InstigatorController = FiringPawn->GetController();
+			if (InstigatorController)
+			{
+				UGameplayStatics::ApplyDamage(
+				BlasterCharacter,
+				Damage / 4,
+				InstigatorController,
+				this,
+				UDamageType::StaticClass()
+			);
+			}
+		}
+	}
+	
+	if (BounceSound)
+	{
+		UGameplayStatics::PlaySoundAtLocation(
+			this,
+			BounceSound,
+			GetActorLocation()
+		);
+	}
+}
+
+void AProjectileGrenade::Destroyed()
+{
+	ExplodeDamage();
+	Super::Destroyed();
+}

Source/Blaster/Weapon/ProjectileGrenade.h

@@ -0,0 +1,33 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Projectile.h"
+#include "ProjectileGrenade.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class BLASTER_API AProjectileGrenade : public AProjectile
+{
+	GENERATED_BODY()
+
+public:
+
+	AProjectileGrenade();
+	virtual void Destroyed() override;
+
+protected:
+
+	virtual void BeginPlay() override;
+
+	UFUNCTION()
+	void OnBounce(const FHitResult& ImpactResult, const FVector& ImpactVelocity);
+
+private:
+
+	UPROPERTY(EditAnywhere)
+	USoundCue* BounceSound;
+};

Source/Blaster/Weapon/ProjectileRocket.cpp

@@ -4,7 +4,6 @@
 #include "ProjectileRocket.h"
 
 #include "Kismet/GameplayStatics.h"
-#include "NiagaraFunctionLibrary.h"
 #include "NiagaraComponent.h"
 #include "RocketMovementComponent.h"
 #include "Components/AudioComponent.h"
@@ -13,9 +12,9 @@
 
 AProjectileRocket::AProjectileRocket()
 {
-	RocketMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Rocket Mesh"));
+	ProjectileMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Rocket Mesh"));
-	RocketMesh->SetupAttachment(RootComponent);
+	ProjectileMesh->SetupAttachment(RootComponent);
-	RocketMesh->SetCollisionEnabled(ECollisionEnabled::NoCollision);
+	ProjectileMesh->SetCollisionEnabled(ECollisionEnabled::NoCollision);
 
 	RocketMovementComponent = CreateDefaultSubobject<URocketMovementComponent>("RocketMovementComponent");
 	RocketMovementComponent->bRotationFollowsVelocity = true;
@@ -35,18 +34,8 @@ void AProjectileRocket::BeginPlay()
 		CollisionBox->OnComponentHit.AddDynamic(this, &AProjectileRocket::OnHit);
 	}
 	
-	if (TrailSystem)
+	SpawnTrailSystem();
-	{
+	
-		TrailSystemComponent = UNiagaraFunctionLibrary::SpawnSystemAttached(
-			TrailSystem,
-			GetRootComponent(),
-			FName(),
-			GetActorLocation(),
-			GetActorRotation(),
-			EAttachLocation::KeepWorldPosition,
-			false
-		);
-	}
 	if (ProjectileLoop && LoopingSoundAttenuation)
 	{
 		ProjectileLoopComponent = UGameplayStatics::SpawnSoundAttached(
@@ -66,45 +55,15 @@ void AProjectileRocket::BeginPlay()
 	}
 }
 
-void AProjectileRocket::DestroyTimerFinished()
-{
-	Destroy();
-}
-
 void AProjectileRocket::OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, FVector NormalImpulse, const FHitResult& Hit)
 {
 	if (OtherActor == GetOwner())
 	{
 		return;
 	}
-	APawn* FiringPawn = GetInstigator();
+	ExplodeDamage();
-	if (FiringPawn && HasAuthority())
-	{
-		AController* FiringController = FiringPawn->GetController();
-		if (FiringController)
-		{
-			UGameplayStatics::ApplyRadialDamageWithFalloff(
-				this,
-				Damage,
-				10.f,
-				GetActorLocation(),
-				200.f,
-				500.f,
-				1.f,
-				UDamageType::StaticClass(),
-				TArray<AActor*>(),
-				this,
-				FiringController
-			);
-		}
-	}
 
-	GetWorldTimerManager().SetTimer(
+	StartDestroyTimer();
-		DestroyTimer,
-		this,
-		&AProjectileRocket::DestroyTimerFinished,
-		DestroyTime
-	);
 
 	if (ImpactParticles)
 	{
@@ -114,9 +73,9 @@ void AProjectileRocket::OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor,
 	{
 		UGameplayStatics::PlaySoundAtLocation(this, ImpactSound, GetActorLocation());
 	}
-	if (RocketMesh)
+	if (ProjectileMesh)
 	{
-		RocketMesh->SetVisibility(false);
+		ProjectileMesh->SetVisibility(false);
 	}
 	if (CollisionBox)
 	{

Source/Blaster/Weapon/ProjectileRocket.h

@@ -20,14 +20,7 @@ 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;
 
@@ -40,13 +33,4 @@ protected:
 	UPROPERTY(VisibleAnywhere)
 	class URocketMovementComponent* RocketMovementComponent;
 	
-private:
-
-	UPROPERTY(VisibleAnywhere)
-	UStaticMeshComponent* RocketMesh;
-	
-	FTimerHandle DestroyTimer;
-
-	UPROPERTY(EditAnywhere)
-	float DestroyTime = 3.f;
 };