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


#include "Weapon.h"

AWeapon::AWeapon() :
	ThrowWeaponTime(0.7f),
	bFalling(false),
	Ammo(30),
	MagazineCapacity(30),
	WeaponType(EWeaponType::EWT_SubmachineGun),
	AmmoType(EAmmoType::EAT_9mm),
	ReloadMontageSection(FName(TEXT("Reload SMG"))),
	ClipBoneName(TEXT("smg_clip"))
{
	PrimaryActorTick.bCanEverTick = true;
}

void AWeapon::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

	/* Keep it upright */
	if (GetItemState() == EItemState::EIS_Falling && bFalling)
	{
		FRotator MeshRotation{ 0.f, GetItemMesh()->GetComponentRotation().Yaw, 0.f };
		GetItemMesh()->SetWorldRotation(MeshRotation, false,
			nullptr, ETeleportType::TeleportPhysics);
	}
}

void AWeapon::ThrowWeapon()
{
	FRotator MeshRotation{ 0.f, GetItemMesh()->GetComponentRotation().Yaw, 0.f };
	GetItemMesh()->SetWorldRotation(MeshRotation, false,
									nullptr, ETeleportType::TeleportPhysics);

	const FVector MeshForward{ GetItemMesh()->GetForwardVector() };
	const FVector MeshRight{ GetItemMesh()->GetRightVector() };

	// Direction in which we throw the weapon
	FVector ImpulseDirection = MeshRight.RotateAngleAxis(-20.f, MeshForward);

	float RandomRotation{ 30.f };
	ImpulseDirection = ImpulseDirection.RotateAngleAxis(RandomRotation, FVector(0.f, 0.f, 1.f));
	ImpulseDirection *= 2000.f;
	GetItemMesh()->AddImpulse(ImpulseDirection);

	bFalling = true;
	GetWorldTimerManager().SetTimer(ThrowWeaponTimer, this,
									&AWeapon::StopFalling, ThrowWeaponTime);

	EnableGlowMaterial();
}

void AWeapon::DecrementAmmo()
{
	if (Ammo - 1 <= 0)
		Ammo = 0;
	else
		--Ammo;
}

void AWeapon::ReloadAmmo(int32 Amount)
{
	checkf(Ammo + Amount <= MagazineCapacity, TEXT("Attempted to reload with more than the magazine capacity!"))
	Ammo += Amount;
}

bool AWeapon::ClipIsFull()
{
	return Ammo >= MagazineCapacity;
}

void AWeapon::StopFalling()
{
	bFalling = false;
	SetItemState(EItemState::EIS_Pickup);
	StartPulseTimer();
}