void ASWeaponPickup::OnUsed(APawn* InstigatorPawn)
{
ASCharacter* MyPawn = Cast<ASCharacter>(InstigatorPawn);
if (MyPawn)
{
/* Fetch the default variables of the class we are about to pick up and check if the storage slot is available on the pawn. */
if (MyPawn->WeaponSlotAvailable(WeaponClass->GetDefaultObject<ASWeapon>()->GetStorageSlot()))
{
FActorSpawnParameters SpawnInfo;
SpawnInfo.bNoCollisionFail = true;
ASWeapon* NewWeapon = GetWorld()->SpawnActor<ASWeapon>(WeaponClass, SpawnInfo);
MyPawn->AddWeapon(NewWeapon);
Super::OnUsed(InstigatorPawn);
}
else
{
ASPlayerController* PC = Cast<ASPlayerController>(MyPawn->GetController());
if (PC)
{
PC->ClientMessageReceived("Weapon slot already taken.");
}
}
}
}
void ASHUD::DrawCenterDot()
{
float CenterX = Canvas->ClipX / 2;
float CenterY = Canvas->ClipY / 2;
float CenterDotScale = 0.07f;
ASPlayerController* PCOwner = Cast<ASPlayerController>(PlayerOwner);
if (PCOwner)
{
ASCharacter* Pawn = Cast<ASCharacter>(PCOwner->GetPawn());
if (Pawn && Pawn->IsAlive())
{
// Boost size when hovering over a switchable object.
ASUsableActor* usable = Pawn->GetUsableInView();
if (usable)
CenterDotScale *= 1.5f;
Canvas->SetDrawColor(255, 255, 255, 255);
Canvas->DrawIcon(CenterDotIcon,
CenterX - CenterDotIcon.UL*CenterDotScale / 2.0f,
CenterY - CenterDotIcon.VL*CenterDotScale / 2.0f, CenterDotScale);
}
}
}
void ASPlayerCameraManager::UpdateCamera(float DeltaTime)
{
ASCharacter* MyPawn = PCOwner ? Cast<ASCharacter>(PCOwner->GetPawn()) : nullptr;
if (MyPawn)
{
const float TargetFOV = MyPawn->IsTargeting() ? TargetingFOV : NormalFOV;
DefaultFOV = FMath::FInterpTo(DefaultFOV, TargetFOV, DeltaTime, 20.0f);
SetFOV(DefaultFOV);
}
/* Apply smooth camera lerp between crouch toggling */
if (MyPawn)
{
if (MyPawn->bIsCrouched && !bWasCrouched)
{
CurrentCrouchOffset = MaxCrouchOffsetZ;
}
else if (!MyPawn->bIsCrouched && bWasCrouched)
{
CurrentCrouchOffset = -MaxCrouchOffsetZ;
}
bWasCrouched = MyPawn->bIsCrouched;
CurrentCrouchOffset = FMath::Lerp(CurrentCrouchOffset, 0.0f, CrouchLerpVelocity * DeltaTime);
FVector CurrentCameraOffset = MyPawn->GetCameraComponent()->GetRelativeTransform().GetLocation();
FVector NewCameraOffset = FVector(CurrentCameraOffset.X, CurrentCameraOffset.Y, DefaultCameraOffsetZ + CurrentCrouchOffset);
MyPawn->GetCameraComponent()->SetRelativeLocation(NewCameraOffset);
}
Super::UpdateCamera(DeltaTime);
}
void ASGameMode::CheckMatchEnd()
{
bool bHasAlivePlayer = false;
for (FConstPawnIterator It = GetWorld()->GetPawnIterator(); It; It++)
{
ASCharacter* MyPawn = Cast<ASCharacter>(*It);
if (MyPawn && MyPawn->IsAlive())
{
ASPlayerState* PS = Cast<ASPlayerState>(MyPawn->PlayerState);
if (PS)
{
if (!PS->bIsABot)
{
/* Found one player that is still alive, game will continue */
bHasAlivePlayer = true;
break;
}
}
}
}
/* End game is all players died */
if (!bHasAlivePlayer)
{
FinishMatch();
}
}
void ASPlayerController::ServerSuicide_Implementation()
{
ASCharacter* MyPawn = Cast<ASCharacter>(GetPawn());
if (MyPawn && ((GetWorld()->TimeSeconds - MyPawn->CreationTime > 1) || (GetNetMode() == NM_Standalone)))
{
MyPawn->Suicide();
}
}
void ASConsumableActor::OnUsed(APawn* InstigatorPawn)
{
ASCharacter* Pawn = Cast<ASCharacter>(InstigatorPawn);
if (Pawn)
{
Pawn->ConsumeFood(Nutrition);
}
Super::OnUsed(InstigatorPawn);
}
void ASWeaponInstant::SimulateInstantHit(const FVector& Origin)
{
const FVector StartTrace = Origin;
const FVector AimDir = GetAdjustedAim();
const FVector EndTrace = StartTrace + (AimDir * WeaponRange);
const FHitResult Impact = WeaponTrace(StartTrace, EndTrace);
if (Impact.bBlockingHit)
{
SpawnImpactEffects(Impact);
SpawnTrailEffects(Impact.ImpactPoint);
}
else
{
SpawnTrailEffects(EndTrace);
}
// Do not spawn near-hit if we actually hit a pawn
if (Impact.GetActor() && Impact.GetActor()->IsA(ASCharacter::StaticClass()))
{
return;
}
for (FConstPawnIterator It = GetWorld()->GetPawnIterator(); It; It++)
{
// Find a locally controlled pawn that is not the instigator of the hit.
ASCharacter* OtherPawn = Cast<ASCharacter>(*It);
if (OtherPawn && OtherPawn != GetPawnOwner() && OtherPawn->IsLocallyControlled())
{
// Calculate shortest distance to point. (using the estimated eye height)
const float DistanceToPawn = FVector::CrossProduct(AimDir, OtherPawn->GetActorLocation() - Origin).Size();
/* Owner can be lost before client gets to simulate the hit. */
ASCharacter* P = GetPawnOwner();
if (P)
{
FVector LookAt = (OtherPawn->GetActorLocation() - GetPawnOwner()->GetActorLocation());
LookAt.Normalize();
float LookDot = FVector::DotProduct(AimDir, LookAt);
if (DistanceToPawn < NearHitMaxDistance && LookDot > 0)
{
// TODO: Play at nearest "almost" hit location.
const FVector SoundLocation = Origin + (AimDir * DistanceToPawn);
// Volume is based on distance to missed shot
float Volume = FMath::Clamp(1 - (DistanceToPawn / NearHitMaxDistance), 0.1f, 1.0f);
UGameplayStatics::PlaySoundAtLocation(this, NearHitSound, /*SoundLocation*/ OtherPawn->GetActorLocation(), Volume);
}
}
}
}
}
void ASConsumableActor::OnUsed(APawn* inInstigatorPawn)
{
Super::OnUsed(inInstigatorPawn);
ASCharacter* lPawn = Cast<ASCharacter>(inInstigatorPawn);
if (lPawn)
{
lPawn->ConsumeFood(Nutrition);
}
Destroy();
}
void ASGameMode::SpawnDefaultInventory(APawn* PlayerPawn)
{
ASCharacter* MyPawn = Cast<ASCharacter>(PlayerPawn);
if (MyPawn)
{
for (int32 i = 0; i < DefaultInventoryClasses.Num(); i++)
{
if (DefaultInventoryClasses[i])
{
FActorSpawnParameters SpawnInfo;
SpawnInfo.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
ASWeapon* NewWeapon = GetWorld()->SpawnActor<ASWeapon>(DefaultInventoryClasses[i], SpawnInfo);
MyPawn->AddWeapon(NewWeapon);
}
}
}
}
void ASWeaponInstant::SpawnTrailEffects(const FVector& EndPoint)
{
// Keep local count for effects
BulletsShotCount++;
const FVector Origin = GetMuzzleLocation();
FVector ShootDir = EndPoint - Origin;
// Only spawn if a minimum distance is satisfied.
if (ShootDir.Size() < MinimumProjectileSpawnDistance)
{
return;
}
if (BulletsShotCount % TracerRoundInterval == 0)
{
if (TracerFX)
{
ShootDir.Normalize();
UGameplayStatics::SpawnEmitterAtLocation(this, TracerFX, Origin, ShootDir.Rotation());
}
}
else
{
// Only create trails FX by other players.
ASCharacter* OwningPawn = GetPawnOwner();
if (OwningPawn && OwningPawn->IsLocallyControlled())
{
return;
}
if (TrailFX)
{
UParticleSystemComponent* TrailPSC = UGameplayStatics::SpawnEmitterAtLocation(this, TrailFX, Origin);
if (TrailPSC)
{
TrailPSC->SetVectorParameter(TrailTargetParam, EndPoint);
}
}
}
}
void ASHUD::DrawCenterDot()
{
float lCenterX = Canvas->ClipX * 0.5f;
float lCenterY = Canvas->ClipY * 0.5f;
float lCenterDotScale = 0.07f;
ASPlayerController* lOwner = Cast<ASPlayerController>(PlayerOwner);
if (lOwner)
{
ASCharacter* lPawn = Cast<ASCharacter>(lOwner->GetPawn());
if (lPawn && lPawn->IsAlive())
{
ASUsableActor* lUsable = lPawn->GetUsableInView();
if (lUsable)
lCenterDotScale *= 1.5f;
Canvas->SetDrawColor(255, 255, 255, 255);
Canvas->DrawIcon(CenterDotIcon,
lCenterX - CenterDotIcon.UL * lCenterDotScale * 0.5f,
lCenterY - CenterDotIcon.VL * lCenterDotScale * 0.5f,
lCenterDotScale);
}
}
}
void ASGameMode::DefaultTimer()
{
/* This function is called every 1 second. */
Super::DefaultTimer();
/* Immediately start the match while playing in editor */
//if (GetWorld()->IsPlayInEditor())
{
if (GetMatchState() == MatchState::WaitingToStart)
{
StartMatch();
}
}
/* Only increment time of day while game is active */
if (IsMatchInProgress())
{
ASGameState* MyGameState = Cast<ASGameState>(GameState);
if (MyGameState)
{
/* Increment our time of day */
MyGameState->ElapsedGameMinutes += MyGameState->GetTimeOfDayIncrement();
/* Determine our state */
MyGameState->GetAndUpdateIsNight();
/* Trigger events when night starts or ends */
bool CurrentIsNight = MyGameState->GetIsNight();
if (CurrentIsNight != LastIsNight)
{
FString MessageText = CurrentIsNight ? "SURVIVE!" : "You Survived! Now prepare for the coming night!";
ASGameState* MyGameState = Cast<ASGameState>(GameState);
if (MyGameState)
{
MyGameState->BroadcastGameMessage(MessageText);
}
/* The night just ended, respawn all dead players */
if (!CurrentIsNight)
{
/* Respawn spectating players that died during the night */
for (FConstPlayerControllerIterator It = GetWorld()->GetPlayerControllerIterator(); It; It++)
{
/* Look for all players that are spectating */
ASPlayerController* MyController = Cast<ASPlayerController>(*It);
if (MyController)
{
if (MyController->PlayerState->bIsSpectator)
{
RestartPlayer(MyController);
MyController->ClientHUDStateChanged(EHUDState::Playing);
}
else
{
/* Player still alive, award him some points */
ASCharacter* MyPawn = Cast<ASCharacter>(MyController->GetPawn());
if (MyPawn && MyPawn->IsAlive())
{
ASPlayerState* PS = Cast<ASPlayerState>(MyController->PlayerState);
if (PS)
{
PS->ScorePoints(NightSurvivedScore);
}
}
}
}
}
}
/* Update bot states */
if (CurrentIsNight)
{
WakeAllBots();
}
else
{
PassifyAllBots();
}
}
LastIsNight = MyGameState->bIsNight;
}
}
}
void ASGameMode::RestartPlayer(class AController* NewPlayer)
{
/* Fallback to PlayerStart picking if team spawning is disabled or we're trying to spawn a bot. */
if (!bSpawnAtTeamPlayer || (NewPlayer->PlayerState && NewPlayer->PlayerState->bIsABot))
{
Super::RestartPlayer(NewPlayer);
return;
}
/* Look for a live player to spawn next to */
FVector SpawnOrigin = FVector::ZeroVector;
FRotator StartRotation = FRotator::ZeroRotator;
for (FConstPawnIterator It = GetWorld()->GetPawnIterator(); It; It++)
{
ASCharacter* MyCharacter = Cast<ASCharacter>(*It);
if (MyCharacter && MyCharacter->IsAlive())
{
/* Get the origin of the first player we can find */
SpawnOrigin = MyCharacter->GetActorLocation();
StartRotation = MyCharacter->GetActorRotation();
break;
}
}
/* No player is alive (yet) - spawn using one of the PlayerStarts */
if (SpawnOrigin == FVector::ZeroVector)
{
Super::RestartPlayer(NewPlayer);
return;
}
/* Get a point on the nav mesh near the other player */
FVector StartLocation = UNavigationSystem::GetRandomPointInRadius(NewPlayer, SpawnOrigin, 250.0f);
// Try to create a pawn to use of the default class for this player
if (NewPlayer->GetPawn() == nullptr && GetDefaultPawnClassForController(NewPlayer) != nullptr)
{
FActorSpawnParameters SpawnInfo;
SpawnInfo.Instigator = Instigator;
APawn* ResultPawn = GetWorld()->SpawnActor<APawn>(GetDefaultPawnClassForController(NewPlayer), StartLocation, StartRotation, SpawnInfo);
if (ResultPawn == nullptr)
{
UE_LOG(LogGameMode, Warning, TEXT("Couldn't spawn Pawn of type %s at %s"), *GetNameSafe(DefaultPawnClass), &StartLocation);
}
NewPlayer->SetPawn(ResultPawn);
}
if (NewPlayer->GetPawn() == nullptr)
{
NewPlayer->FailedToSpawnPawn();
}
else
{
NewPlayer->Possess(NewPlayer->GetPawn());
// If the Pawn is destroyed as part of possession we have to abort
if (NewPlayer->GetPawn() == nullptr)
{
NewPlayer->FailedToSpawnPawn();
}
else
{
// Set initial control rotation to player start's rotation
NewPlayer->ClientSetRotation(NewPlayer->GetPawn()->GetActorRotation(), true);
FRotator NewControllerRot = StartRotation;
NewControllerRot.Roll = 0.f;
NewPlayer->SetControlRotation(NewControllerRot);
SetPlayerDefaults(NewPlayer->GetPawn());
}
}
}
