From 6127b5cd813fd0557de9043841e26939ce1f4b87 Mon Sep 17 00:00:00 2001
From: Louis Hobbs <bazzadobs@live.co.uk>
Date: Mon, 13 Mar 2023 23:01:12 +0000
Subject: [PATCH] Add PerceptionComponent to `PlayerCharacter` and
 `EnemyCharacter`

---
 Source/Nakatomi/EnemyAIController.cpp | 13 ++++++++++++-
 Source/Nakatomi/EnemyAIController.h   |  3 +++
 Source/Nakatomi/EnemyCharacter.h      |  2 ++
 Source/Nakatomi/PlayerCharacter.h     |  1 +
 4 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/Source/Nakatomi/EnemyAIController.cpp b/Source/Nakatomi/EnemyAIController.cpp
index d432c4a..d4623c5 100644
--- a/Source/Nakatomi/EnemyAIController.cpp
+++ b/Source/Nakatomi/EnemyAIController.cpp
@@ -8,6 +8,15 @@ AEnemyAIController::AEnemyAIController(const FObjectInitializer& object_initiali
 {
 	Blackboard = CreateDefaultSubobject<UBlackboardComponent>(TEXT("Blackboard"));
 	BehaviorTree = CreateDefaultSubobject<UBehaviorTreeComponent>(TEXT("Behavior Tree"));
+	PerceptionComponent = CreateDefaultSubobject<UAIPerceptionComponent>(TEXT("Perception Component"));
+	AIPerception = PerceptionComponent;
+
+	UAISenseConfig_Sight* ConfigSight = CreateDefaultSubobject<UAISenseConfig_Sight>(TEXT("Sight Sense Config"));
+	ConfigSight->SightRadius = 1000.0f;
+	ConfigSight->LoseSightRadius = 1000.0f;
+	ConfigSight->PeripheralVisionAngleDegrees = 30.0f;
+
+	AIPerception->ConfigureSense(*ConfigSight);
 }
 
 void AEnemyAIController::OnPossess(APawn* InPawn)
@@ -98,7 +107,7 @@ void AEnemyAIController::OnPerceptionUpdated(const TArray<AActor*>& actors)
 		}
 
 		FActorPerceptionBlueprintInfo perceptionInfo;
-		GetPerceptionComponent()->GetActorsPerception(actor, perceptionInfo);
+		PerceptionComponent->GetActorsPerception(actor, perceptionInfo);
 
 		for (auto& stimulus : perceptionInfo.LastSensedStimuli)
 		{
@@ -107,6 +116,8 @@ void AEnemyAIController::OnPerceptionUpdated(const TArray<AActor*>& actors)
 				continue;
 			}
 
+			Blackboard->SetValueAsObject("TargetActor", actor);
+
 			if (stimulus.IsActive())
 			{
 				PlayerCharacter = Cast<APlayerCharacter>(actor);
diff --git a/Source/Nakatomi/EnemyAIController.h b/Source/Nakatomi/EnemyAIController.h
index 4b0e154..d9622cc 100644
--- a/Source/Nakatomi/EnemyAIController.h
+++ b/Source/Nakatomi/EnemyAIController.h
@@ -28,6 +28,9 @@ private:
 
 	APlayerCharacter* PlayerCharacter;
 
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Meta = (AllowPrivateAccess = "true"))
+	UAIPerceptionComponent* AIPerception;
+
 public:
 	AEnemyAIController(const FObjectInitializer& object_initializer);
 
diff --git a/Source/Nakatomi/EnemyCharacter.h b/Source/Nakatomi/EnemyCharacter.h
index 5bcd4ea..585dc2e 100644
--- a/Source/Nakatomi/EnemyCharacter.h
+++ b/Source/Nakatomi/EnemyCharacter.h
@@ -20,6 +20,8 @@ class NAKATOMI_API AEnemyCharacter : public ANakatomiCharacter
 	GENERATED_BODY()
 
 private:
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Meta = (AllowPrivateAccess = "true"))
 	UAIPerceptionComponent* PerceptionComponent;
 
 	UAISenseConfig_Sight* SightConfig;
diff --git a/Source/Nakatomi/PlayerCharacter.h b/Source/Nakatomi/PlayerCharacter.h
index f8cffec..d9b48ad 100644
--- a/Source/Nakatomi/PlayerCharacter.h
+++ b/Source/Nakatomi/PlayerCharacter.h
@@ -81,6 +81,7 @@ private:
 
 	class UUserWidget* currentPlayerHUD;
 
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Meta = (AllowPrivateAccess = "true"))
 	UAIPerceptionStimuliSourceComponent* PerceptionSource;
 
 public: