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

#include "RoverController.h"
#include "Rover.h"
#include "RoverGameModeBase.h"
#include "Kismet/GameplayStatics.h"
#include "Kismet/KismetMathLibrary.h"

ARoverController* ARoverController::PlayerController = nullptr;

ARoverController::ARoverController()
{
	PlayerController = this;
}
void ARoverController::BeginPlay()
{

	Super::BeginPlay();
	ARoverGameModeBase::Init();
	if (UGameplayStatics::GetPlayerController(GetWorld(), 0) == this) {

		SetShowMouseCursor(true);
		Rover = Cast<ARover>(UGameplayStatics::GetPlayerPawn(GetWorld(), 0));

		UE_LOG(LogTemp, Log, TEXT("Init Successful"));
	}
}


void ARoverController::SetMouseShowStatus(bool bStatus)
{
	if (bStatus) {
		GetWorldTimerManager().ClearTimer(ResetMousePositionTimer);
	}
	else {
		GetMousePosition(ClickMousePosition.X, ClickMousePosition.Y);
		GetWorldTimerManager().ClearTimer(ResetMousePositionTimer);
		GetWorldTimerManager().SetTimer(ResetMousePositionTimer, this, &ARoverController::ResetMousePositionToClickPoint, 0.05f, true);
	}
	SetShowMouseCursor(bStatus);
}

bool ARoverController::GetUnderMouseHitPosition(FHitResult& HitResult)
{
	FVector2D MousePosition;
	GetMousePosition(MousePosition.X, MousePosition.Y);
	return GetUnderScreenHitPosition(MousePosition, HitResult);
}

bool ARoverController::GetUnderScreenHitPosition(const FVector2D& ScreenPosition, FHitResult& HitResult)
{
	FVector WorldLocation;
	FVector WorldDirection;
	DeprojectScreenPositionToWorld(ScreenPosition.X, ScreenPosition.Y, WorldLocation, WorldDirection);
	FVector End = WorldLocation + WorldDirection * 10000000000;
	if (GetWorld()->LineTraceSingleByChannel(HitResult, WorldLocation, End, ECollisionChannel::ECC_Visibility)) {
		return true;
	}
	return false;
}

bool ARoverController::GetUnderscreenCenterHitPosition(FHitResult& HitResult)
{
	FVector WorldLocation;
	FVector WorldDirection;
	FVector2D ScreenCenter = GetScreenCenterPosition();
	DeprojectScreenPositionToWorld(ScreenCenter.X, ScreenCenter.Y, WorldLocation, WorldDirection);
	FVector End = WorldLocation + WorldDirection * 10000000000;
	if (GetWorld()->LineTraceSingleByChannel(HitResult, WorldLocation, End, ECollisionChannel::ECC_Visibility)) {
		return true;
	}
	return false;
}

FVector2D ARoverController::GetScreenCenterPosition()
{
	FVector2D ScreenCenter;
	GEngine->GameViewport->GetViewportSize(ScreenCenter);
	ScreenCenter *= 0.5;
	return ScreenCenter;
}


void ARoverController::ResetMousePositionToClickPoint()
{
	SetMouseLocation(ClickMousePosition.X, ClickMousePosition.Y);
}

void ARoverController::RotateCameraToTargetPoint(FRotator Rotation)
{
	FRotator SelfRotation = GetControlRotation();
	if (UKismetMathLibrary::Dot_VectorVector(SelfRotation.Vector(), Rotation.Vector()) >= 0.999999) {
		SetControlRotation(Rotation);
		Rover->UpdatascreenCenterPointLocation();
		GetWorldTimerManager().ClearTimer(RotateCameraTimer);
		return;
	}
	SetControlRotation(UKismetMathLibrary::RInterpTo(SelfRotation, Rotation, GetWorld()->GetDeltaSeconds(), 5.f));
}