From 83d5ba31f4b6dafbd9a5af223fc0e25c027ae40f Mon Sep 17 00:00:00 2001
From: Louis Hobbs <bazzadobs@live.co.uk>
Date: Thu, 16 Feb 2023 18:28:25 +0000
Subject: [PATCH] Add Get Random Location task

---
 Source/Nakatomi/TaskGetRandomLocation.cpp | 24 ++++++++++++++++++++
 Source/Nakatomi/TaskGetRandomLocation.h   | 27 +++++++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 Source/Nakatomi/TaskGetRandomLocation.cpp
 create mode 100644 Source/Nakatomi/TaskGetRandomLocation.h

diff --git a/Source/Nakatomi/TaskGetRandomLocation.cpp b/Source/Nakatomi/TaskGetRandomLocation.cpp
new file mode 100644
index 0000000..157f8c6
--- /dev/null
+++ b/Source/Nakatomi/TaskGetRandomLocation.cpp
@@ -0,0 +1,24 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#include "TaskGetRandomLocation.h"
+#include "EnemyAIController.h"
+#include "navigationSystem.h"
+
+EBTNodeResult::Type UTaskGetRandomLocation::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());
+
+	if (blackboardComponent && navigationSystem)
+	{
+		FNavLocation navLocation;
+		navigationSystem->GetRandomReachablePointInRadius(enemyPawn->GetActorLocation(), MaximumDistance, navLocation);
+		
+		blackboardComponent->SetValueAsVector(PatrolLocationKey.SelectedKeyName, navLocation.Location);
+		return EBTNodeResult::Succeeded;
+	}
+
+	return EBTNodeResult::Failed;
+}
diff --git a/Source/Nakatomi/TaskGetRandomLocation.h b/Source/Nakatomi/TaskGetRandomLocation.h
new file mode 100644
index 0000000..53ff145
--- /dev/null
+++ b/Source/Nakatomi/TaskGetRandomLocation.h
@@ -0,0 +1,27 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "BehaviorTree/BTTaskNode.h"
+#include "TaskGetRandomLocation.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class NAKATOMI_API UTaskGetRandomLocation : public UBTTaskNode
+{
+	GENERATED_BODY()
+public:
+
+	UPROPERTY(EditAnywhere, Category = "Options", Meta = (AllowPrivateAccess = "true", DisplayName = "Patrol Location Key"))
+	FBlackboardKeySelector PatrolLocationKey;
+
+	UPROPERTY(EditAnywhere, Category = "Options", Meta = (AllowPrivateAccess = "true", DisplayName = "Maximum Distance"))
+	float MaximumDistance = 500.0f;
+
+public:
+	
+	virtual EBTNodeResult::Type ExecuteTask(UBehaviorTreeComponent& owner, uint8* memory) override;
+};