// Project Lab - NHTV Igad

#include "UnrealProject.h"
#include "HomingProjectile.h"
#include "DefaultGameMode.h"
#include "NetworkPlayer.h"

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

	float maxdist = BIG_NUMBER;
	if (Role == ROLE_Authority)
	{
		if (targetCreature == nullptr)
		{
			UWorld* const world = GetWorld();
			if (!world) return;
			ADefaultGameMode* mode = Cast<ADefaultGameMode>(world->GetAuthGameMode());
			if (!mode) return;

			TArray<class ANetworkPlayer*> players = mode->GetPlayers();

			for (ANetworkPlayer* player : players)
			{
				float dist = (player->GetActorLocation() - GetActorLocation()).SizeSquared();
				if (dist < maxdist)
				{
					maxdist = dist;
					targetCreature = player;
				}
			}
		}
	}
}

void AHomingProjectile::NativeMove(float DeltaTime)
{
	if (targetCreature == nullptr)
		return;
	FVector dir = targetCreature->GetActorLocation() - GetActorLocation();
	FRotator newrot = FRotationMatrix::MakeFromX(dir).Rotator();
		
	SetActorRotation(newrot);

	Super::NativeMove(DeltaTime);
}