AzureAbyss/Source/the_twilight_abyss/PlayerTemp/TempCharacter.cpp

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

#include "TempCharacter.h"

#include "IDetailTreeNode.h"
#include "Blueprint/UserWidget.h"
#include "the_twilight_abyss/BaseItems/InventoryComponent.h"
#include "the_twilight_abyss/BaseItems/Items/BaseItem.h"
#include "the_twilight_abyss/MerchantInteraction/Interaction.h"


// CONSTRUCTOR
ATempCharacter::ATempCharacter()
{
	// Set this character to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;
	Inventory = CreateDefaultSubobject<UInventoryComponent>("Inventory");
	Inventory->MaxItemSlots = 10;
}

// Called when the game starts or when spawned
void ATempCharacter::BeginPlay()
{
	Super::BeginPlay();
	Health = 100;
}

//Binds the input we made in the setup player component to the forward vector
void ATempCharacter::ForwardInput(float Axis)
{
	AddMovementInput(GetActorForwardVector() * Axis);
}
//Binds the input we made in the setup player component to the right vector
void ATempCharacter::RightMoveInput(float Axis)
{
	AddMovementInput(GetActorRightVector() * Axis);
}


// Called every frame
void ATempCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
}

// Gives the character the functionality
void ATempCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);
	PlayerInputComponent->BindAxis(TEXT("Move Forward / Backward"), this, &ATempCharacter::ForwardInput);
	PlayerInputComponent->BindAxis(TEXT("Move Right / Left"), this, &ATempCharacter::RightMoveInput);
	PlayerInputComponent->BindAxis(TEXT("Turn Right / Left Mouse"), this, &ATempCharacter::AddControllerYawInput);
	PlayerInputComponent->BindAxis(TEXT("Look Up / Down Mouse"), this, &ATempCharacter::AddControllerPitchInput);
	PlayerInputComponent->BindAction("Interact", IE_Pressed, this, &ATempCharacter::KeyPressed);
}

// When the player presses the E key
void ATempCharacter::KeyPressed()
{
	LineTraceLogic();
}

// Line trace logic
void ATempCharacter::LineTraceLogic()
{
	float GlobalTrace = TraceDistance;
	FHitResult OutHit;
	FVector Start = GetActorLocation();
	FVector End = Start + GlobalTrace * GetActorForwardVector();

	FCollisionQueryParams TraceParams;

	TraceParams.AddIgnoredActor(this);
	
	bool bHit = GetWorld()->LineTraceSingleByChannel(OutHit, Start, End, ECC_Visibility, TraceParams);
	if (bHit)
	{
		if(OutHit.GetActor() == nullptr)
		{
			return;
		}
		if(OutHit.GetActor()->FindComponentByClass<UInventoryComponent>())
		{
			if(GoldBalance >= OutHit.GetActor()->FindComponentByClass<UInventoryComponent>()->GetItem(0)->ItemCostPrice)
			{
				GoldBalance -= OutHit.GetActor()->FindComponentByClass<UInventoryComponent>()->GetItem(0)->ItemCostPrice;
				Inventory->AddItem(OutHit.GetActor()->FindComponentByClass<UInventoryComponent>()->GetItem(0));
				UE_LOG(LogTemp, Display, TEXT("Item Purchased"));
			}
			if(GoldBalance <= 0)
			{
				UE_LOG(LogTemp, Display, TEXT("Not Enough Gold"));
			}
		}
		if (AInteraction* MyInteractable = Cast<AInteraction>(OutHit.GetActor()))
		{
			DrawDebugLine(GetWorld(), Start, End, FColor::Green, false, 1.0f);
			MyInteractable->OnInteract();
			UE_LOG(LogTemp, Display, TEXT("HIT: %s"), *OutHit.GetActor()->GetName());
		}
	}
}

void ATempCharacter::UseItem(class UBaseItem* Item)
{
	if(Item)
	{
		Item->Use(this);
		Item->OnUse(this); //Blueprint Version
	}
}