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


#include "EnemyPawn.h"
#include "Pickup.h"
#include "Util.h"
#include "EnemyAIController.h"

#define LogInfo(Msg) Util::log_info(TEXT("EnemyPawn"), Msg)
#define LogError(Msg) Util::log_error(TEXT("EnemyPawn"), Msg)

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

	/*
	 * Initialize random stream.
	 */
	random.Initialize(FMath::Rand());
}

void AEnemyPawn::destroy_self()
{
	const bool drop_pickup = random.GetFraction() > .5;

	if (drop_pickup)
	{
		FVector location = get_location() + FVector(100, 100, 0);
		FActorSpawnParameters spawnParameters;
		spawnParameters.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
		APickup* pickup = GetWorld()->SpawnActor<APickup>(
			pickup_class,
			location,
			FRotator(0,0,0),
			spawnParameters
		);
	}

	ABasePawn::destroy_self();
}

void AEnemyPawn::handle_hit_internal(AActor* other)
{
	const AEnemyPawn* is_enemy = Cast<AEnemyPawn>(other);
	if (is_enemy)
	{
		return;
	}

	const ABasePawn* other_pawn = Cast<ABasePawn>(other);
	if (other_pawn)
	{
		AEnemyAIController* controller = Cast<AEnemyAIController>(GetController());
		if (!controller)
		{
			LogError("EnemyAIController not used!");
			return;
		}

		controller->redirect_target();
	}
}