From b10311e3d11018a38acdb45fe6359933859f5025 Mon Sep 17 00:00:00 2001
From: Louis Hobbs <bazzadobs@live.co.uk>
Date: Wed, 23 Aug 2023 15:15:30 +0100
Subject: [PATCH] Add TaskGetLocationNearLocation AI Task

---
 .../Nakatomi/TaskGetLocationNearLocation.cpp  | 27 +++++++++++++++
 Source/Nakatomi/TaskGetLocationNearLocation.h | 33 +++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 Source/Nakatomi/TaskGetLocationNearLocation.cpp
 create mode 100644 Source/Nakatomi/TaskGetLocationNearLocation.h

diff --git a/Source/Nakatomi/TaskGetLocationNearLocation.cpp b/Source/Nakatomi/TaskGetLocationNearLocation.cpp
new file mode 100644
index 0000000..6febcd0
--- /dev/null
+++ b/Source/Nakatomi/TaskGetLocationNearLocation.cpp
@@ -0,0 +1,27 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "TaskGetLocationNearLocation.h"
+#include "EnemyAIController.h"
+#include "EnemyCharacter.h"
+#include <NavigationSystem.h>
+
+EBTNodeResult::Type UTaskGetLocationNearLocation::ExecuteTask(UBehaviorTreeComponent& owner, uint8* memory)
+{
+	auto enemyController = Cast<AEnemyAIController>(owner.GetAIOwner());
+	auto enemyPawn = Cast<AEnemyCharacter>(enemyController->GetPawn());
+	auto blackboardComponent = owner.GetBlackboardComponent();
+	auto navigationSystem = FNavigationSystem::GetCurrent<UNavigationSystemV1>(GetWorld());
+	FVector sourceLocation = blackboardComponent->GetValueAsVector(SourceLocationKey.SelectedKeyName);
+
+	if (blackboardComponent && navigationSystem && sourceLocation != FVector::ZeroVector)
+	{
+		FNavLocation navLocation;
+		navigationSystem->GetRandomReachablePointInRadius(sourceLocation, MaximumDistance, navLocation);
+
+		blackboardComponent->SetValueAsVector(TargetLocationKey.SelectedKeyName, navLocation.Location);
+		return EBTNodeResult::Succeeded;
+	}
+
+	return EBTNodeResult::Failed;
+}
diff --git a/Source/Nakatomi/TaskGetLocationNearLocation.h b/Source/Nakatomi/TaskGetLocationNearLocation.h
new file mode 100644
index 0000000..a0b8e95
--- /dev/null
+++ b/Source/Nakatomi/TaskGetLocationNearLocation.h
@@ -0,0 +1,33 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "BehaviorTree/BTTaskNode.h"
+#include "TaskGetLocationNearLocation.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class NAKATOMI_API UTaskGetLocationNearLocation : public UBTTaskNode
+{
+	GENERATED_BODY()
+	
+
+public:
+	UPROPERTY(EditAnywhere, Category = "Options",
+		Meta = (AllowPrivateAccess = "true", DisplayName = "Target Location Key"))
+	FBlackboardKeySelector TargetLocationKey;
+
+	UPROPERTY(EditAnywhere, Category = "Options",
+		Meta = (AllowPrivateAccess = "true", DisplayName = "Source Location Key"))
+	FBlackboardKeySelector SourceLocationKey;
+
+	UPROPERTY(EditAnywhere, Category = "Options",
+		Meta = (AllowPrivateAccess = "true", DisplayName = "Maximum Distance"))
+	float MaximumDistance = 500.0f;
+
+public:
+	virtual EBTNodeResult::Type ExecuteTask(UBehaviorTreeComponent& owner, uint8* memory) override;
+};