blaster/Source/Blaster/Weapon/ProjectileRocket.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "ProjectileRocket.h"

#include "Kismet/GameplayStatics.h"
#include "NiagaraComponent.h"
#include "RocketMovementComponent.h"
#include "Components/AudioComponent.h"
#include "Components/BoxComponent.h"
#include "Sound/SoundCue.h"

AProjectileRocket::AProjectileRocket()
{
	ProjectileMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Rocket Mesh"));
	ProjectileMesh->SetupAttachment(RootComponent);
	ProjectileMesh->SetCollisionEnabled(ECollisionEnabled::NoCollision);

	RocketMovementComponent = CreateDefaultSubobject<URocketMovementComponent>("RocketMovementComponent");
	RocketMovementComponent->bRotationFollowsVelocity = true;
	RocketMovementComponent->SetIsReplicated(true);
}

void AProjectileRocket::Destroyed()
{
}

#if WITH_EDITOR
void AProjectileRocket::PostEditChangeProperty(FPropertyChangedEvent& Event)
{
	Super::PostEditChangeProperty(Event);

	const FName PropertyName = Event.Property != nullptr ? Event.Property->GetFName() : NAME_None;
	if (PropertyName == GET_MEMBER_NAME_CHECKED(AProjectileRocket, InitialSpeed))
	{
		if (RocketMovementComponent)
		{
			RocketMovementComponent->InitialSpeed = InitialSpeed;
			RocketMovementComponent->MaxSpeed = InitialSpeed;
		}
	}
}
#endif

void AProjectileRocket::BeginPlay()
{
	Super::BeginPlay();

	if (!HasAuthority())
	{
		CollisionBox->OnComponentHit.AddDynamic(this, &AProjectileRocket::OnHit);
	}
	
	SpawnTrailSystem();
	
	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::OnHit(UPrimitiveComponent* HitComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, FVector NormalImpulse, const FHitResult& Hit)
{
	if (OtherActor == GetOwner())
	{
		return;
	}
	ExplodeDamage();

	StartDestroyTimer();

	if (ImpactParticles)
	{
		UGameplayStatics::SpawnEmitterAtLocation(GetWorld(), ImpactParticles, GetActorTransform());
	}
	if (ImpactSound)
	{
		UGameplayStatics::PlaySoundAtLocation(this, ImpactSound, GetActorLocation());
	}
	if (ProjectileMesh)
	{
		ProjectileMesh->SetVisibility(false);
	}
	if (CollisionBox)
	{
		CollisionBox->SetCollisionEnabled(ECollisionEnabled::NoCollision);
	}
	if (TrailSystemComponent && TrailSystemComponent->GetSystemInstanceController().IsValid())
	{
		TrailSystemComponent->GetSystemInstanceController()->Deactivate();
	}
	if (ProjectileLoopComponent && ProjectileLoopComponent->IsPlaying())
	{
		ProjectileLoopComponent->Stop();
	}
}