OpenDoor

#include "BuildingEscape.h"
#include "OpenDoor.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;

    if (!PressurePlate)
    {
        UE_LOG(LogTemp, Error, TEXT("%s missing pressure plate"), *Owner->GetName())
    }
}


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

    Owner = GetOwner();
}

void UOpenDoor::OpenDoor()
{
    // Set the door rotation
    Owner->SetActorRotation(FRotator(0.f, OpenAngle, 0.f));
}

void UOpenDoor::CloseDoor()
{
    // Set the door rotation
    Owner->SetActorRotation(FRotator(0.f, 0.f, 0.f));
}


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

    // Poll the Trigger Volume
    if (GetTotalMassOfActorsOnPlate() > 30.f) // TODO make into a parameter
    {
        OpenDoor();
        LastDoorOpenTime = GetWorld()->GetTimeSeconds();
    }

    // Check if it's time to close the door
    if (GetWorld()->GetTimeSeconds() - LastDoorOpenTime >= DoorCloseDelay)
    {
        CloseDoor();
    }
}

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

    // Find all the overlapping actors
    TArray<AActor*> OverlappingActors;
    if (!PressurePlate) { return TotalMass;  }
    PressurePlate->GetOverlappingActors(OUT OverlappingActors);

    // Iterate through them, adding their masses
    for (const auto* Actor : OverlappingActors)
    {
        UE_LOG(LogTemp, Warning, TEXT("%s on pressure plate"), *Actor->GetName())
        TotalMass += Actor->FindComponentByClass<UPrimitiveComponent>()->GetMass();
    }

    return TotalMass;
}