#include "OpenDoor.h"
#include "Components/PrimitiveComponent.h"
#include "Engine/World.h"
#include "GameFramework/Actor.h"
#include "GameFramework/PlayerController.h"

#define OUT

// Sets default values for this component's properties
UOpenDoor::UOpenDoor()
{
	// Set this component to be initialized when the game starts, and to be ticked every frame.  You can turn these features
	// off to improve performance if you don't need them.
	PrimaryComponentTick.bCanEverTick = true;

	// ...
}

// Called when the game starts
void UOpenDoor::BeginPlay()
{
	Super::BeginPlay();
}

// Called every frame
void UOpenDoor::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction)
{
	Super::TickComponent(DeltaTime, TickType, ThisTickFunction);

	// ...
	//if(PressurePlate->IsOverlappingActor(ActorThatOpens)) // kann nullpointer + UE4 crash geben
	//if(PressurePlate && PressurePlate->IsOverlappingActor(ActorThatOpens)) //prüft erst, ob es ein actor gibt
	//UE_LOG(LogTemp, Display, TEXT("%f Total Weight"), TotalMass());
	if (TotalMass() >= MassToOpenDoor)
	{
		//UE_LOG(LogTemp, Display, TEXT("%f Total Weight"), TotalMass());
		OpenDoor();
		//DoorLastOpened When the door was opened
		doorLastOpened = GetWorld()->GetTimeSeconds();
	}

	else if (open)
	{
		//if door has been open longer than DoorCloseDelay
		//if(GetWorld()->GetTimeSeconds() > DoorLastOpened + DoorDelay)
		if (GetWorld()->GetTimeSeconds() - doorLastOpened > RotationDelay)
			CloseDoor();
	}
}

void UOpenDoor::OpenDoor()
{
	FRotator rotation = GetOwner()->GetActorRotation();
	rotation.Yaw = TargetAngle;
	Rotate(rotation);
	open = true;
}

void UOpenDoor::CloseDoor()
{
	FRotator rotation = GetOwner()->GetActorRotation();
	rotation.Yaw = 0.0f;
	Rotate(rotation);
	open = false;
}

float UOpenDoor::TotalMass() const
{
	float TotalMass = 0.f;

	//find All Overlapping Actors
	TArray<AActor*> OverlapingActors;

	if (!PressurePlate) { return TotalMass; }
	PressurePlate->GetOverlappingActors(OUT OverlapingActors);

	//Add Up Their Masses
	for (AActor* Actor : OverlapingActors)
	{
		if(Actor->GetRootComponent()->Mobility == EComponentMobility::Movable)
		{
			//UE_LOG(LogTemp, Display, TEXT("Actor: %s"), *Actor->GetName());
			TotalMass += Actor->FindComponentByClass<UPrimitiveComponent>()->GetMass();
		}
		
	}

	return TotalMass;
}