// Copyright Zelle Games


#include "BasicProjectile.h"

#include "Components/SphereComponent.h"
#include "Engine/DamageEvents.h"
#include "GameFramework/ProjectileMovementComponent.h"

// Sets default values
ABasicProjectile::ABasicProjectile()
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;
	
	SphereComponent = CreateDefaultSubobject<USphereComponent>(TEXT("Sphere Collision"));
	SphereComponent->InitSphereRadius(50.0f);
	RootComponent = SphereComponent;
	SphereComponent->OnComponentBeginOverlap.AddDynamic(this, &ABasicProjectile::OnSphereOverlap);
	SphereComponent->SetCollisionProfileName("NoCollision");
	
	MeshComponent = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh"));
	MeshComponent->SetCollisionProfileName("NoCollision");
	MeshComponent->SetupAttachment(RootComponent);

	ProjectileMovementComponent = CreateDefaultSubobject<UProjectileMovementComponent>(TEXT("Projectile Movement"));
	ProjectileMovementComponent->SetUpdatedComponent(RootComponent);

	ProjectileMovementComponent->ProjectileGravityScale = 0;
}

// Called when the game starts or when spawned
void ABasicProjectile::BeginPlay()
{
	Super::BeginPlay();
	
}

// Called every frame
void ABasicProjectile::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

void ABasicProjectile::OnSphereOverlap(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor,
	UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	FVector UnitDirection = OtherActor->GetActorLocation() - GetActorLocation();
	UnitDirection.Normalize();
	
	FPointDamageEvent DamageEvent;
	DamageEvent.HitInfo.ImpactPoint = SweepResult.ImpactPoint;
	DamageEvent.ShotDirection = UnitDirection;
	DamageEvent.Damage = Damage;

	OtherActor->TakeDamage(Damage, DamageEvent, nullptr, this);
	Destroy();
}