blaster/Source/Blaster/PlayerController/BlasterPlayerController.cpp

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


#include "BlasterPlayerController.h"

#include "Blaster/Character/BlasterCharacter.h"
#include "Blaster/HUD/BlasterHUD.h"
#include "Blaster/HUD/CharacterOverlay.h"
#include "Components/ProgressBar.h"
#include "Components/TextBlock.h"


void ABlasterPlayerController::BeginPlay()
{
	Super::BeginPlay();

	BlasterHUD = Cast<ABlasterHUD>(GetHUD());
}

void ABlasterPlayerController::Tick(float DeltaSeconds)
{
	Super::Tick(DeltaSeconds);

	SetHUDTime();

	CheckTimeSync(DeltaSeconds);
}

void ABlasterPlayerController::OnPossess(APawn* InPawn)
{
	Super::OnPossess(InPawn);

	if (const ABlasterCharacter* BlasterCharacter = Cast<ABlasterCharacter>(InPawn))
	{
		SetHUDHealth(BlasterCharacter->GetHealth(), BlasterCharacter->GetMaxHealth());
	}
}

void ABlasterPlayerController::ReceivedPlayer()
{
	Super::ReceivedPlayer();

	if (IsLocalController())
	{
		ServerRequestServerTime(GetWorld()->GetTimeSeconds());
	}
}

void ABlasterPlayerController::CheckTimeSync(float DeltaSeconds)
{
	TimeSyncRunningTime += DeltaSeconds;
	if (IsLocalController() && TimeSyncRunningTime > TimeSyncFrequency)
	{
		ServerRequestServerTime(GetWorld()->GetTimeSeconds());
		TimeSyncRunningTime = 0.f;
	}
}

float ABlasterPlayerController::GetServerTime()
{
	if (HasAuthority()) return GetWorld()->GetTimeSeconds();
	
	return GetWorld()->GetTimeSeconds() + ClientServerDelta;
}

void ABlasterPlayerController::ServerRequestServerTime_Implementation(float TimeOfClientRequest)
{
	const float ServerTimeOfReceipt = GetWorld()->GetTimeSeconds();
	ClientReportServerTime(TimeOfClientRequest, ServerTimeOfReceipt);
}

void ABlasterPlayerController::ClientReportServerTime_Implementation(float TimeOfClientRequest, float TimeServerReceivedClientRequest)
{
	const float RoundTripTime = GetWorld()->GetTimeSeconds() - TimeOfClientRequest;
	const float CurrentServerTime = TimeServerReceivedClientRequest + 0.5f * RoundTripTime;

	ClientServerDelta = CurrentServerTime - GetWorld()->GetTimeSeconds();
}

void ABlasterPlayerController::SetHUDTime()
{
	const uint32 SecondsLeft = FMath::CeilToInt(MatchTime - GetServerTime());

	if (CountdownInt != SecondsLeft)
	{
		SetHUDMatchCountdown(MatchTime - GetServerTime());
	}

	CountdownInt = SecondsLeft;
}

void ABlasterPlayerController::SetHUDHealth(float Health, float MaxHealth)
{
	BlasterHUD = BlasterHUD == nullptr ? Cast<ABlasterHUD>(GetHUD()) : BlasterHUD;
	bool bHUDValid =
		BlasterHUD &&
		BlasterHUD->CharacterOverlay &&
		BlasterHUD->CharacterOverlay->HealthBar &&
		BlasterHUD->CharacterOverlay->HealthText;

	if (bHUDValid)
	{
		const float HealthPercent = Health / MaxHealth;
		BlasterHUD->CharacterOverlay->HealthBar->SetPercent(HealthPercent);
		const FString HealthText = FString::Printf(TEXT("%d/%d"), FMath::CeilToInt(Health), FMath::CeilToInt(MaxHealth));
		BlasterHUD->CharacterOverlay->HealthText->SetText(FText::FromString(HealthText));
	}
}

void ABlasterPlayerController::SetHUDScore(float Score)
{
	BlasterHUD = BlasterHUD == nullptr ? Cast<ABlasterHUD>(GetHUD()) : BlasterHUD;
	bool bHUDValid =
		BlasterHUD &&
		BlasterHUD->CharacterOverlay &&
		BlasterHUD->CharacterOverlay->ScoreValue;

	if (bHUDValid)
	{
		const FString ScoreAmount = FString::Printf(TEXT("%d"), FMath::FloorToInt(Score));
		BlasterHUD->CharacterOverlay->ScoreValue->SetText(FText::FromString(ScoreAmount));
	}
}

void ABlasterPlayerController::SetHUDDefeats(int32 Defeats)
{
	BlasterHUD = BlasterHUD == nullptr ? Cast<ABlasterHUD>(GetHUD()) : BlasterHUD;
	bool bHUDValid =
		BlasterHUD &&
		BlasterHUD->CharacterOverlay &&
		BlasterHUD->CharacterOverlay->DefeatsValue;

	if (bHUDValid)
	{
		const FString DefeatsAmount = FString::Printf(TEXT("%d"), Defeats);
		BlasterHUD->CharacterOverlay->DefeatsValue->SetText(FText::FromString(DefeatsAmount));
	}
}

void ABlasterPlayerController::SetHUDWeaponAmmo(int32 Ammo)
{
	BlasterHUD = BlasterHUD == nullptr ? Cast<ABlasterHUD>(GetHUD()) : BlasterHUD;
	bool bHUDValid =
		BlasterHUD &&
		BlasterHUD->CharacterOverlay &&
		BlasterHUD->CharacterOverlay->WeaponAmmoValue;

	if (bHUDValid)
	{
		const FString WeaponAmmoAmount = FString::Printf(TEXT("%d"), Ammo);
		BlasterHUD->CharacterOverlay->WeaponAmmoValue->SetText(FText::FromString(WeaponAmmoAmount));
	}
}

void ABlasterPlayerController::SetHUDCarriedAmmo(int32 Ammo)
{
	BlasterHUD = BlasterHUD == nullptr ? Cast<ABlasterHUD>(GetHUD()) : BlasterHUD;
	bool bHUDValid =
		BlasterHUD &&
		BlasterHUD->CharacterOverlay &&
		BlasterHUD->CharacterOverlay->CarriedAmmoValue;

	if (bHUDValid)
	{
		const FString CarriedAmmoAmount = FString::Printf(TEXT("%d"), Ammo);
		BlasterHUD->CharacterOverlay->CarriedAmmoValue->SetText(FText::FromString(CarriedAmmoAmount));
	}
}

void ABlasterPlayerController::SetHUDMatchCountdown(float CountdownTime)
{
	BlasterHUD = BlasterHUD == nullptr ? Cast<ABlasterHUD>(GetHUD()) : BlasterHUD;
	bool bHUDValid =
		BlasterHUD &&
		BlasterHUD->CharacterOverlay &&
		BlasterHUD->CharacterOverlay->MatchCountdownText;

	if (bHUDValid)
	{
		int32 Minutes = FMath::FloorToInt(CountdownTime / 60);
		int32 Seconds = CountdownTime - Minutes * 60;

		const FString CountdownText = FString::Printf(TEXT("%02d:%02d"), Minutes, Seconds);
		BlasterHUD->CharacterOverlay->MatchCountdownText->SetText(FText::FromString(CountdownText));
	}
}