88 lines
3.3 KiB
C++
88 lines
3.3 KiB
C++
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "AbilityTask_GrantNearbyInteraction.h"
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#include "GameFramework/Actor.h"
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#include "Physics/LyraCollisionChannels.h"
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#include "Interaction/IInteractableTarget.h"
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#include "Interaction/InteractionStatics.h"
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#include "Interaction/InteractionQuery.h"
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#include "AbilitySystemComponent.h"
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#include "TimerManager.h"
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#include "GameFramework/Controller.h"
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UAbilityTask_GrantNearbyInteraction::UAbilityTask_GrantNearbyInteraction(const FObjectInitializer& ObjectInitializer)
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: Super(ObjectInitializer)
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{
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}
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UAbilityTask_GrantNearbyInteraction* UAbilityTask_GrantNearbyInteraction::GrantAbilitiesForNearbyInteractors(UGameplayAbility* OwningAbility, float InteractionScanRange, float InteractionScanRate)
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{
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UAbilityTask_GrantNearbyInteraction* MyObj = NewAbilityTask<UAbilityTask_GrantNearbyInteraction>(OwningAbility);
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MyObj->InteractionScanRange = InteractionScanRange;
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MyObj->InteractionScanRate = InteractionScanRate;
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return MyObj;
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}
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void UAbilityTask_GrantNearbyInteraction::Activate()
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{
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SetWaitingOnAvatar();
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UWorld* World = GetWorld();
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World->GetTimerManager().SetTimer(QueryTimerHandle, this, &ThisClass::QueryInteractables, InteractionScanRate, true);
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}
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void UAbilityTask_GrantNearbyInteraction::OnDestroy(bool AbilityEnded)
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{
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Super::OnDestroy(AbilityEnded);
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UWorld* World = GetWorld();
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World->GetTimerManager().ClearTimer(QueryTimerHandle);
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}
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void UAbilityTask_GrantNearbyInteraction::QueryInteractables()
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{
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UWorld* World = GetWorld();
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AActor* ActorOwner = GetAvatarActor();
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if (World && ActorOwner)
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{
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FCollisionQueryParams Params(SCENE_QUERY_STAT(UAbilityTask_GrantNearbyInteraction), false);
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TArray<FOverlapResult> OverlapResults;
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World->OverlapMultiByChannel(OUT OverlapResults, ActorOwner->GetActorLocation(), FQuat::Identity, Lyra_TraceChannel_Interaction, FCollisionShape::MakeSphere(InteractionScanRange), Params);
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if (OverlapResults.Num() > 0)
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{
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TArray<TScriptInterface<IInteractableTarget>> InteractableTargets;
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UInteractionStatics::AppendInteractableTargetsFromOverlapResults(OverlapResults, OUT InteractableTargets);
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FInteractionQuery InteractionQuery;
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InteractionQuery.RequestingAvatar = ActorOwner;
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InteractionQuery.RequestingController = Cast<AController>(ActorOwner->GetOwner());
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TArray<FInteractionOption> Options;
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for (TScriptInterface<IInteractableTarget>& InteractiveTarget : InteractableTargets)
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{
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FInteractionOptionBuilder InteractionBuilder(InteractiveTarget, Options);
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InteractiveTarget->GatherInteractionOptions(InteractionQuery, InteractionBuilder);
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}
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// Check if any of the options need to grant the ability to the user before they can be used.
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for (FInteractionOption& Option : Options)
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{
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if (Option.InteractionAbilityToGrant)
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{
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// Grant the ability to the GAS, otherwise it won't be able to do whatever the interaction is.
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FObjectKey ObjectKey(Option.InteractionAbilityToGrant);
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if (!InteractionAbilityCache.Find(ObjectKey))
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{
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FGameplayAbilitySpec Spec(Option.InteractionAbilityToGrant, 1, INDEX_NONE, this);
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FGameplayAbilitySpecHandle Handle = AbilitySystemComponent->GiveAbility(Spec);
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InteractionAbilityCache.Add(ObjectKey, Handle);
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}
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}
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}
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}
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}
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}
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