63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
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// Fill out your copyright notice in the Description page of Project Settings.
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#include "TaskCheckLineOfSight.h"
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#include <BehaviorTree/BlackboardComponent.h>
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#include "NakatomiCharacter.h"
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#include "PlayerCharacter.h"
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EBTNodeResult::Type UTaskCheckLineOfSight::ExecuteTask(UBehaviorTreeComponent& owner, uint8* memory)
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{
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auto BlackboardComponent = owner.GetBlackboardComponent();
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if (!BlackboardComponent)
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{
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return EBTNodeResult::Failed;
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}
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auto selfActor = Cast<ANakatomiCharacter>(
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BlackboardComponent->GetValueAsObject(SelfActorKey.SelectedKeyName));
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if (!selfActor)
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{
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return EBTNodeResult::Failed;
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}
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AWeapon* CurrentWeapon = selfActor->GetCurrentWeapon();
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if (!CurrentWeapon)
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{
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return EBTNodeResult::Failed;
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}
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// Calculate starting position and direction
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FVector TraceStart = selfActor->GetTransform().GetLocation();
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FRotator PlayerRot = selfActor->GetTransform().GetRotation().Rotator();
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TraceStart = selfActor->GetRootComponent()->GetComponentLocation();
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FVector AimDir = PlayerRot.Vector();
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AimDir.Z = 0.0;
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TraceStart = TraceStart + AimDir * ((selfActor->GetInstigator()->GetActorLocation() - TraceStart) | AimDir);
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// Calculate the hit results from the trace
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TArray<FHitResult> HitResults;
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// Set up the collision query params, use the Weapon trace settings, Ignore the actor firing this trace
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FCollisionQueryParams TraceParams(SCENE_QUERY_STAT(WeaponTrace), true, selfActor->GetInstigator());
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TraceParams.bReturnPhysicalMaterial = true;
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FVector MaxHitLoc = TraceStart + (AimDir * CurrentWeapon->GetWeaponProperties()->ProjectileRange);
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GetWorld()->LineTraceMultiByChannel(HitResults, TraceStart, MaxHitLoc, ECC_GameTraceChannel1, TraceParams);
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for (FHitResult Result : HitResults)
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{
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if (Cast<APlayerCharacter>(Result.GetActor()))
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{
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return EBTNodeResult::Succeeded;
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}
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}
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return EBTNodeResult::Failed;
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}
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