blaster/Source/Blaster/GameMode/BlasterGameMode.cpp

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


#include "BlasterGameMode.h"

#include "Blaster/Character/BlasterCharacter.h"
#include "Blaster/PlayerController/BlasterPlayerController.h"
#include "Blaster/PlayerState/BlasterPlayerState.h"
#include "GameFramework/PlayerStart.h"
#include "Kismet/GameplayStatics.h"


namespace MatchState
{
	const FName Cooldown = FName("Cooldown");
}

ABlasterGameMode::ABlasterGameMode()
{
	bDelayedStart = true;
}

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

	LevelStartingTime = GetWorld()->GetTimeSeconds();
}

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

	if (MatchState == MatchState::WaitingToStart)
	{
		CountDownTime = WarmupTime - GetWorld()->GetTimeSeconds() + LevelStartingTime;
		if (CountDownTime <= 0.f)
		{
			StartMatch();
		}
	}
	else if (MatchState == MatchState::InProgress)
	{
		CountDownTime = WarmupTime + MatchTime - GetWorld()->GetTimeSeconds() + LevelStartingTime;
		if (CountDownTime <= 0.f)
		{
			SetMatchState(MatchState::Cooldown);
		}
	}
	else if (MatchState == MatchState::Cooldown)
	{
		CountDownTime = CooldownTime + WarmupTime + MatchTime - GetWorld()->GetTimeSeconds() + LevelStartingTime;
		if (CountDownTime <= 0.f)
		{
			RestartGame();
		}
	}
}

void ABlasterGameMode::OnMatchStateSet()
{
	Super::OnMatchStateSet();

	for (FConstPlayerControllerIterator Iterator = GetWorld()->GetPlayerControllerIterator(); Iterator; ++Iterator)
	{
		ABlasterPlayerController* PlayerController = Cast<ABlasterPlayerController>(*Iterator);
		if  (PlayerController)
		{
			PlayerController->OnMatchStateSet(MatchState);
		}
	}
}

void ABlasterGameMode::PlayerEliminated(ABlasterCharacter* EliminatedCharacter, ABlasterPlayerController* VictimController,
                                        ABlasterPlayerController* AttackerController)
{
	ABlasterPlayerState* AttackerPlayerState = AttackerController ? Cast<ABlasterPlayerState>(AttackerController->PlayerState) : nullptr;
	ABlasterPlayerState* VictimPlayerState = VictimController ? Cast<ABlasterPlayerState>(VictimController->PlayerState) : nullptr;

	if (AttackerPlayerState && AttackerPlayerState != VictimPlayerState)
	{
		AttackerPlayerState->IncreaseScore(1.f);
	}
	if (VictimPlayerState)
	{
		VictimPlayerState->IncreaseDefeats(1);
	}
	
	if (EliminatedCharacter)
	{
		EliminatedCharacter->Eliminated();
	}
}

void ABlasterGameMode::RequestRespawn(ACharacter* EliminatedCharacter, AController* EliminatedController)
{
	if (EliminatedCharacter)
	{
		EliminatedCharacter->Reset();
		EliminatedCharacter->Destroy();
	}

	if (EliminatedController)
	{
		TArray<AActor*> PlayerStarts;
		UGameplayStatics::GetAllActorsOfClass(this, APlayerStart::StaticClass(), PlayerStarts);
		const int32 Selection = FMath::RandRange(0, PlayerStarts.Num() - 1);
		RestartPlayerAtPlayerStart(EliminatedController, PlayerStarts[Selection]);
	}
}