130 lines
4.4 KiB
C++
130 lines
4.4 KiB
C++
// Fill out your copyright notice in the Description page of Project Settings.
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#include "WeaponPickup.h"
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#include "PlayerCharacter.h"
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#include "Kismet/GameplayStatics.h"
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#include "Kismet/KismetMathLibrary.h"
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#include "UI/WeaponPickupUserWidget.h"
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// Sets default values
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AWeaponPickup::AWeaponPickup()
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{
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WeaponPropertiesWidgetComponent = CreateDefaultSubobject<UWidgetComponent>(TEXT("Healthbar"));
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WeaponPropertiesWidgetComponent->SetupAttachment(RootComponent);
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WeaponPropertiesWidgetComponent->SetRelativeLocation(FVector(0,0,90));
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WeaponPropertiesWidgetComponent->SetTwoSided(true);
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WeaponPropertiesWidgetComponent->SetBackgroundColor(FLinearColor(1,1,1,0));
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}
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// Called when the game starts or when spawned
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void AWeaponPickup::BeginPlay()
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{
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Super::BeginPlay();
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if (Weapon)
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{
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SpawnWeapon();
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}
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}
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// Called every frame
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void AWeaponPickup::Tick(const float DeltaTime)
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{
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Super::Tick(DeltaTime);
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if (WeaponComponent)
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{
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// Rotate Weapon in desired direction
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WeaponComponent->AddActorLocalRotation((SpinRotation * RotationSpeed) * DeltaTime);
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// Bob weapon up and down
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const float Time = GetWorld()->GetRealTimeSeconds();
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const float Sine = FMath::Abs(FMath::Sin(Time * MovementSpeed));
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WeaponComponent->SetActorLocation(WeaponStartingLocation + ((MovementDirection * Sine) * MovementDistance));
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}
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APlayerCharacter* PlayerCharacter = Cast<APlayerCharacter>(UGameplayStatics::GetPlayerCharacter(GetWorld(), 0));
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if (PlayerCharacter && WeaponPropertiesWidgetComponent->GetWidget())
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{
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FVector ActorLocation = GetActorLocation();
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UCameraComponent* PlayerCamera = PlayerCharacter->GetCameraComponent();
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FVector PlayerLocation = PlayerCamera->GetComponentTransform().GetLocation();
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FRotator rotation = UKismetMathLibrary::FindLookAtRotation(ActorLocation, PlayerLocation);
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WeaponPropertiesWidgetComponent->SetWorldRotation(rotation);
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}
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}
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void AWeaponPickup::OnOverlapBegin(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor,
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UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep,
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const FHitResult& SweepResult)
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{
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// TODO: Add extra checking here
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const auto Player = Cast<APlayerCharacter>(OtherActor);
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if (Player && Weapon)
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{
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Player->AddWeaponToInventory(Weapon);
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Player->WeaponInventory.Last()->SetWeaponProperties(*WeaponComponent->GetWeaponProperties());
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WeaponComponent->Destroy();
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}
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Super::OnOverlapBegin(OverlappedComponent, OtherActor, OtherComp, OtherBodyIndex, bFromSweep, SweepResult);
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}
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void AWeaponPickup::SetWeapon(const TSubclassOf<AWeapon> NewWeapon)
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{
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Weapon = NewWeapon;
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if (WeaponComponent)
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{
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WeaponComponent->Destroy();
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}
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SpawnWeapon();
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}
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FWeaponProperties* AWeaponPickup::GetWeaponProperties()
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{
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return &WeaponProperties;
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}
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void AWeaponPickup::SetWeaponProperties(const FWeaponProperties& FWeaponProperties) const
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{
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WeaponComponent->SetWeaponProperties(FWeaponProperties);
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UWeaponPickupUserWidget* userWidget = Cast<UWeaponPickupUserWidget>(WeaponPropertiesWidgetComponent->GetWidget());
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userWidget->AmmoText->SetText(FText::AsNumber(FWeaponProperties.DefaultAmmo));
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FString ProjectilesString = FString::FromInt(FWeaponProperties.ProjectilesPerShot);
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ProjectilesString += "x";
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userWidget->ProjectilesText->SetText(FText::FromString(ProjectilesString));
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FString CooldownString = FString::SanitizeFloat(FWeaponProperties.WeaponCooldown);
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CooldownString.LeftInline(3);
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CooldownString += "s";
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userWidget->CooldownText->SetText(FText::FromString(CooldownString));
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FString SpreadString = FString::SanitizeFloat(FWeaponProperties.WeaponSpread);
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SpreadString.LeftInline(4);
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userWidget->SpreadText->SetText(FText::FromString(SpreadString));
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}
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void AWeaponPickup::SpawnWeapon()
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{
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FActorSpawnParameters SpawnParameters;
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SpawnParameters.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
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WeaponComponent = GetWorld()->SpawnActor<AWeapon>(Weapon, SpawnParameters);
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const FAttachmentTransformRules TransformRules = FAttachmentTransformRules(
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EAttachmentRule::SnapToTarget, EAttachmentRule::SnapToTarget, EAttachmentRule::SnapToTarget, true);
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WeaponComponent->AttachToComponent(RootComponent, TransformRules);
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WeaponComponent->SetActorRelativeLocation(FVector(0.0f, 0.0f, 5.0f));
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WeaponComponent->SetActorEnableCollision(false);
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WeaponStartingLocation = WeaponComponent->GetActorLocation();
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WeaponStartingLocation += ((MovementDirection * MovementDistance) / 2);
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}
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