// Request Games © All rights reserved

// Source/TengriPlatformer/World/TengriPickupActor.cpp

#include "TengriPickupActor.h"
#include "Components/StaticMeshComponent.h"
#include "Components/SphereComponent.h"

ATengriPickupActor::ATengriPickupActor()
{
	PrimaryActorTick.bCanEverTick = false; // Физике тик не нужен

	// 1. Mesh Setup
	MeshComp = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("MeshComp"));
	RootComponent = MeshComp;

	// Enable physics by default
	MeshComp->SetSimulatePhysics(true);
	MeshComp->SetCollisionProfileName(TEXT("PhysicsActor")); // Стандартный профиль UE для предметов
	MeshComp->SetMassOverrideInKg(NAME_None, 10.0f); // Вес по дефолту

	// 2. Trigger Setup
	TriggerComp = CreateDefaultSubobject<USphereComponent>(TEXT("TriggerComp"));
	TriggerComp->SetupAttachment(MeshComp);
	TriggerComp->SetSphereRadius(80.0f);
	
	// Trigger collision settings
	TriggerComp->SetCollisionProfileName(TEXT("Trigger"));
}

void ATengriPickupActor::BeginPlay()
{
	Super::BeginPlay();
}

void ATengriPickupActor::OnPickedUp(USceneComponent* AttachTo, const FName SocketName)
{
	if (!MeshComp || !AttachTo) return;

	bIsHeld = true;

	// 1. Disable Physics
	MeshComp->SetSimulatePhysics(false);

	// 2. Disable Collision
	MeshComp->SetCollisionEnabled(ECollisionEnabled::NoCollision);

	// 3. Attach to Hand
	FAttachmentTransformRules AttachmentRules(
		EAttachmentRule::SnapToTarget, // Location Rule
		EAttachmentRule::SnapToTarget, // Rotation Rule
		EAttachmentRule::KeepWorld,    // Scale Rule
		false                          // bWeldSimulatedBodies (добавили этот аргумент)
	);

	AttachToComponent(AttachTo, AttachmentRules, SocketName);
}

void ATengriPickupActor::OnDropped(const FVector Impulse, const bool bVelChange)
{
	if (!MeshComp) return;

	bIsHeld = false;

	// 1. Detach
	DetachFromActor(FDetachmentTransformRules::KeepWorldTransform);

	// 2. Re-enable Collision
	MeshComp->SetCollisionEnabled(ECollisionEnabled::QueryAndPhysics);

	if (!MeshComp) return;

	// 3. Re-enable Physics
	MeshComp->SetSimulatePhysics(true);

	// 4. Apply Throw Force
	if (!Impulse.IsNearlyZero())
	{
		MeshComp->AddImpulse(Impulse, NAME_None, bVelChange); 
	}
}