setup AI Perception and forgatting behavior from Blackboard

Config/DefaultEngine.ini

@@ -1,17 +1,17 @@
 
 
 [/Script/EngineSettings.GameMapsSettings]
-GameDefaultMap=/Game/TempLevel.TempLevel
-EditorStartupMap=/Game/TempLevel.TempLevel
+GameDefaultMap=/Game/Maps/GameLevel.GameLevel
+EditorStartupMap=/Game/Maps/GameLevel.GameLevel
 
 [/Script/Engine.RendererSettings]
 r.AllowStaticLighting=False
 
 r.GenerateMeshDistanceFields=True
 
-r.DynamicGlobalIlluminationMethod=1
+r.DynamicGlobalIlluminationMethod=0
 
-r.ReflectionMethod=1
+r.ReflectionMethod=0
 
 r.SkinCache.CompileShaders=True
 
@@ -91,3 +91,17 @@ ConnectionType=USBOnly
 bUseManualIPAddress=False
 ManualIPAddress=
 
+[/Script/GameplayDebugger.GameplayDebuggerConfig]
+CategorySlot5=Five
+CategorySlot1=One
+CategorySlot2=Two
+CategorySlot3=Three
+CategorySlot4=Four
+CategorySlot6=Six
+CategorySlot7=Seven
+CategorySlot8=Eight
+CategorySlot9=Nine
+
+[/Script/AIModule.AISystem]
+bForgetStaleActors=True
+

Source/Crunch/Crunch.Build.cs

@@ -16,13 +16,14 @@ public class Crunch : ModuleRules
 			"EnhancedInput",
 			"GameplayAbilities",
 			"GameplayTasks",
-			"GameplayTags"
+			"GameplayTags",
+			"AIModule"
 		]);
 
 		PrivateDependencyModuleNames.AddRange([
 			"UMG",
 			"Slate",
-			"SlateCore"
+			"SlateCore",
 		]);
 
 		// Uncomment if you are using Slate UI

Source/Crunch/Private/AI/CAIController.cpp

@@ -0,0 +1,102 @@
+// Multiplayer By Caleb
+
+
+#include "AI/CAIController.h"
+
+#include "BehaviorTree/BlackboardComponent.h"
+#include "Character/CCharacter.h"
+#include "Perception/AIPerceptionComponent.h"
+#include "Perception/AISenseConfig_Sight.h"
+
+
+ACAIController::ACAIController()
+{
+	PrimaryActorTick.bCanEverTick = true;
+	AIPerceptionComponent = CreateDefaultSubobject<UAIPerceptionComponent>("AI Perception Component");
+	SightConfig = CreateDefaultSubobject<UAISenseConfig_Sight>("Sight config");
+
+	SightConfig->DetectionByAffiliation.bDetectEnemies = true;
+	SightConfig->DetectionByAffiliation.bDetectFriendlies = true;
+	SightConfig->DetectionByAffiliation.bDetectNeutrals = false;
+
+	SightConfig->SightRadius = 1000.f;
+	SightConfig->LoseSightRadius = 1200.f;
+	SightConfig->SetMaxAge(5.f);
+	SightConfig->PeripheralVisionAngleDegrees = 100.f;
+
+	AIPerceptionComponent->ConfigureSense(*SightConfig);
+	AIPerceptionComponent->OnTargetPerceptionUpdated.AddDynamic(this, &ThisClass::TargetPerceptionUpdated);
+	AIPerceptionComponent->OnTargetPerceptionForgotten.AddDynamic(this, &ACAIController::TargetForgotten);
+}
+
+void ACAIController::OnPossess(APawn* InPawn)
+{
+	Super::OnPossess(InPawn);
+	SetGenericTeamId(FGenericTeamId(0));
+
+	if (const auto PawnTeamInterface{Cast<IGenericTeamAgentInterface>(InPawn)})
+	{
+		PawnTeamInterface->SetGenericTeamId(GetGenericTeamId());
+	}
+}
+
+void ACAIController::BeginPlay()
+{
+	Super::BeginPlay();
+	RunBehaviorTree(BehaviorTree);
+}
+
+void ACAIController::Tick(float DeltaTime)
+{
+	Super::Tick(DeltaTime);
+}
+
+void ACAIController::TargetPerceptionUpdated(AActor* TargetActor, FAIStimulus Stimulus)
+{
+	if (Stimulus.WasSuccessfullySensed())
+	{
+		if (!GetCurrentTarget()) SetCurrentTarget(TargetActor);
+	}
+	else
+	{
+	}
+}
+
+void ACAIController::TargetForgotten(AActor* ForgottenActor)
+{
+	if (!ForgottenActor) return;
+
+	if (GetCurrentTarget() == ForgottenActor)
+	{
+		SetCurrentTarget(GetNextPerceivedActor());
+	}
+}
+
+const UObject* ACAIController::GetCurrentTarget() const
+{
+	if (const auto BlackboardComponent{GetBlackboardComponent()})
+	{
+		return BlackboardComponent->GetValueAsObject(BlackboardTargetName);
+	}
+	return nullptr;
+}
+
+void ACAIController::SetCurrentTarget(AActor* NewTarget)
+{
+	const auto BlackboardComponent{GetBlackboardComponent()};
+	if (!BlackboardComponent) return;
+
+	if (NewTarget) BlackboardComponent->SetValueAsObject(BlackboardTargetName, NewTarget);
+	else BlackboardComponent->ClearValue(BlackboardTargetName);
+}
+
+AActor* ACAIController::GetNextPerceivedActor() const
+{
+	if (PerceptionComponent)
+	{
+		TArray<AActor*> Actors;
+		AIPerceptionComponent->GetPerceivedHostileActors(Actors);
+		if (Actors.Num() != 0) return Actors[0];
+	}
+	return nullptr;
+}

Source/Crunch/Private/Character/CCharacter.cpp

@@ -11,6 +11,8 @@
 #include "GAS/CAttributeSet.h"
 #include "GAS/UCAbilitySystemStatics.h"
 #include "Kismet/GameplayStatics.h"
+#include "Net/UnrealNetwork.h"
+#include "Player/CPlayerController.h"
 #include "Widgets/OverHeadStatsGauge.h"
 
 
@@ -18,6 +20,7 @@ void ACCharacter::BeginPlay()
 {
 	Super::BeginPlay();
 	ConfigureOverHeadStatusWidget();
+	MeshRelativeTransform = GetMesh()->GetRelativeTransform();
 }
 
 ACCharacter::ACCharacter()
@@ -68,6 +71,12 @@ void ACCharacter::PossessedBy(AController* NewController)
 	}
 }
 
+void ACCharacter::GetLifetimeReplicatedProps(TArray<class FLifetimeProperty>& OutLifetimeProps) const
+{
+	Super::GetLifetimeReplicatedProps(OutLifetimeProps);
+	DOREPLIFETIME(ACCharacter, TeamId);
+}
+
 UAbilitySystemComponent* ACCharacter::GetAbilitySystemComponent() const
 {
 	return CAbilitySystemComponent;
@@ -145,10 +154,39 @@ void ACCharacter::PlayDeathAnimation()
 {
 	if (DeathMontage)
 	{
-		PlayAnimMontage(DeathMontage);
+		const auto MontageDuration{PlayAnimMontage(DeathMontage)};
+		GetWorldTimerManager().SetTimer(
+			DeathMontageTimerHandle,
+			this,
+			&ThisClass::DeathMontageFinished,
+			MontageDuration + DeathMontageFinishTimeShift
+		);
 	}
 }
 
+void ACCharacter::DeathMontageFinished()
+{
+	SetRagdollEnabled(true);
+}
+
+void ACCharacter::SetRagdollEnabled(bool bIsEnabled)
+{
+	if (bIsEnabled)
+	{
+		GetMesh()->DetachFromComponent(FDetachmentTransformRules::KeepWorldTransform);
+		GetMesh()->SetSimulatePhysics(true);
+		GetMesh()->SetCollisionEnabled(ECollisionEnabled::PhysicsOnly);
+	}
+	else
+	{
+		GetMesh()->SetSimulatePhysics(false);
+		GetMesh()->SetCollisionEnabled(ECollisionEnabled::NoCollision);
+		GetMesh()->AttachToComponent(GetRootComponent(), FAttachmentTransformRules::KeepRelativeTransform);
+		GetMesh()->SetRelativeTransform(MeshRelativeTransform);
+	}
+}
+
+
 void ACCharacter::StartDeathSequence()
 {
 	OnDead();
@@ -162,10 +200,20 @@ void ACCharacter::StartDeathSequence()
 void ACCharacter::ReSpawn()
 {
 	OnRespawn();
+	SetRagdollEnabled(false);
 	GetCapsuleComponent()->SetCollisionEnabled(ECollisionEnabled::QueryAndPhysics);
 	GetCharacterMovement()->SetMovementMode(MOVE_Walking);
 	GetMesh()->GetAnimInstance()->StopAllMontages(0.f);
 	SetStatusGaugeEnabled(true);
+
+	if (HasAuthority() && GetController())
+	{
+		if (const auto StartSpot { GetController()->StartSpot }; StartSpot.IsValid())
+		{
+			SetActorTransform(StartSpot->GetActorTransform());
+		}
+	}
+	
 	if (CAbilitySystemComponent)
 	{
 		CAbilitySystemComponent->ApplyFullStatEffect();
@@ -179,3 +227,13 @@ void ACCharacter::OnDead()
 void ACCharacter::OnRespawn()
 {
 }
+
+void ACCharacter::SetGenericTeamId(const FGenericTeamId& NewTeamID)
+{
+	TeamId = NewTeamID;
+}
+
+FGenericTeamId ACCharacter::GetGenericTeamId() const
+{
+	return TeamId;
+}

Source/Crunch/Private/GAS/CGameplayAbility.cpp

@@ -15,11 +15,14 @@ UAnimInstance* UCGameplayAbility::GetOwnerAnimInstance() const
 }
 
 TArray<FHitResult> UCGameplayAbility::GetHitResultFromSweepLocationTargetData(
-	const FGameplayAbilityTargetDataHandle& TargetDataHandle, float SphereSweepRadius, bool bDrawDebug,
-	bool bIgnoreSelf) const
+	const FGameplayAbilityTargetDataHandle& TargetDataHandle, float SphereSweepRadius, ETeamAttitude::Type TargetTeam,
+	bool bDrawDebug, bool bIgnoreSelf) const
 {
 	TArray<FHitResult> OutResults;
 	TSet<AActor*> HitActors;
+
+	const auto OwnerTeamInterface{Cast<IGenericTeamAgentInterface>(GetAvatarActorFromActorInfo())};
+
 	for (const auto TargetData : TargetDataHandle.Data)
 	{
 		const FVector StartLoc{TargetData->GetOrigin().GetTranslation()};
@@ -49,6 +52,12 @@ TArray<FHitResult> UCGameplayAbility::GetHitResultFromSweepLocationTargetData(
 		for (const auto Result : Results)
 		{
 			if (HitActors.Contains(Result.GetActor())) continue;
+
+			if (OwnerTeamInterface)
+			{
+				const auto OtherActorTeamAttitude{OwnerTeamInterface->GetTeamAttitudeTowards(*Result.GetActor())};
+				if (OtherActorTeamAttitude != TargetTeam) continue;
+			}
 			HitActors.Add(Result.GetActor());
 			OutResults.Add(Result);
 		}

Source/Crunch/Private/GAS/GA_Combo.cpp

@@ -152,9 +152,7 @@ void UGA_Combo::DoDamage(FGameplayEventData Data)
 	auto HitResults{
 		GetHitResultFromSweepLocationTargetData(
 			Data.TargetData,
-			TargetSweepSphereRadius,
-			false,
-			true
+			TargetSweepSphereRadius
 		)
 	};
 

Source/Crunch/Private/Game/CGameMode.cpp

@@ -2,3 +2,45 @@
 
 
 #include "Crunch/Public/Game/CGameMode.h"
+
+#include "EngineUtils.h"
+#include "GameFramework/PlayerStart.h"
+
+APlayerController* ACGameMode::SpawnPlayerController(ENetRole InRemoteRole, const FString& Options)
+{
+	const auto NewPlayerController{Super::SpawnPlayerController(InRemoteRole, Options)};
+	const auto NewPlayerControllerTeamInterface{Cast<IGenericTeamAgentInterface>(NewPlayerController)};
+	const FGenericTeamId TeamId{GetTeamIDForPlayer(NewPlayerController)};
+	if (NewPlayerControllerTeamInterface)
+	{
+		NewPlayerControllerTeamInterface->SetGenericTeamId(TeamId);
+	}
+	NewPlayerController->StartSpot = FindNextStartSpotForTeam(TeamId);
+
+	return NewPlayerController;
+}
+
+FGenericTeamId ACGameMode::GetTeamIDForPlayer(const APlayerController* PlayerController) const
+{
+	static int PlayerCount{0};
+	++PlayerCount;
+	return FGenericTeamId(PlayerCount % 2);
+}
+
+AActor* ACGameMode::FindNextStartSpotForTeam(const FGenericTeamId& TeamId) const
+{
+	const auto StartSpotTag{TeamStartSpotTagMap.Find(TeamId)};
+	if (!StartSpotTag)
+	{
+		return nullptr;
+	}
+	for (TActorIterator<APlayerStart> It{GetWorld()}; It; ++It)
+	{
+		if (It->PlayerStartTag == *StartSpotTag)
+		{
+			It->PlayerStartTag = FName("Taken");
+			return *It;
+		}
+	}
+	return nullptr;
+}

Source/Crunch/Private/Player/CPlayerController.cpp

@@ -5,14 +5,22 @@
 
 #include "Blueprint/UserWidget.h"
 #include "Character/CPlayerCharacter.h"
+#include "Net/UnrealNetwork.h"
 #include "Widgets/GameplayWidget.h"
 
+void ACPlayerController::GetLifetimeReplicatedProps(TArray<class FLifetimeProperty>& OutLifetimeProps) const
+{
+	Super::GetLifetimeReplicatedProps(OutLifetimeProps);
+	DOREPLIFETIME(ACPlayerController, TeamId);
+}
+
 void ACPlayerController::OnPossess(APawn* InPawn)
 {
 	Super::OnPossess(InPawn);
 	if (CPlayerCharacter = Cast<ACPlayerCharacter>(InPawn); IsValid(CPlayerCharacter))
 	{
 		CPlayerCharacter->ServerSideInit();
+		CPlayerCharacter->SetGenericTeamId(TeamId);
 	}
 }
 
@@ -26,6 +34,16 @@ void ACPlayerController::AcknowledgePossession(APawn* P)
 	}
 }
 
+FGenericTeamId ACPlayerController::GetGenericTeamId() const
+{
+	return TeamId;
+}
+
+void ACPlayerController::SetGenericTeamId(const FGenericTeamId& NewTeamID)
+{
+	TeamId = NewTeamID;
+}
+
 void ACPlayerController::SpawnGameplayWidget()
 {
 	if (!IsLocalPlayerController()) return;

Source/Crunch/Public/AI/CAIController.h

@@ -0,0 +1,46 @@
+// Multiplayer By Caleb
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "AIController.h"
+#include "Perception/AIPerceptionTypes.h"
+#include "CAIController.generated.h"
+
+UCLASS()
+class CRUNCH_API ACAIController : public AAIController
+{
+	GENERATED_BODY()
+
+public:
+	ACAIController();
+	virtual void OnPossess(APawn* InPawn) override;
+
+protected:
+	virtual void BeginPlay() override;
+
+public:
+	virtual void Tick(float DeltaTime) override;
+
+private:
+
+	UPROPERTY(EditDefaultsOnly, Category="AI Behavior")
+	FName BlackboardTargetName {"Target"};
+	UFUNCTION()
+	void TargetPerceptionUpdated(AActor* TargetActor, FAIStimulus Stimulus);
+	UFUNCTION()
+	void TargetForgotten(AActor* ForgottenActor);
+	
+	UPROPERTY(EditDefaultsOnly, Category="AI Behavior")
+	UBehaviorTree* BehaviorTree;
+	
+	UPROPERTY(VisibleDefaultsOnly, Category="Perception")
+	UAIPerceptionComponent* AIPerceptionComponent;
+
+	UPROPERTY(VisibleDefaultsOnly, Category="Perception")
+	class UAISenseConfig_Sight* SightConfig;
+	UFUNCTION()
+	const UObject* GetCurrentTarget() const ;
+	void SetCurrentTarget(AActor* NewTarget);
+	AActor * GetNextPerceivedActor() const;
+};

Source/Crunch/Public/Character/CCharacter.h

@@ -5,6 +5,7 @@
 #include "CoreMinimal.h"
 #include "AbilitySystemInterface.h"
 #include "GameplayTagContainer.h"
+#include "GenericTeamAgentInterface.h"
 #include "GameFramework/Character.h"
 #include "CCharacter.generated.h"
 
@@ -13,7 +14,7 @@ class UCAbilitySystemComponent;
 class UCAttributeSet;
 
 UCLASS()
-class CRUNCH_API ACCharacter : public ACharacter, public IAbilitySystemInterface
+class CRUNCH_API ACCharacter : public ACharacter, public IAbilitySystemInterface, public IGenericTeamAgentInterface
 {
 	GENERATED_BODY()
 
@@ -27,6 +28,7 @@ public:
 	bool IsLocallyControlledByPlayer() const;
 	// Only called on the server
 	virtual void PossessedBy(AController* NewController) override;
+	virtual void GetLifetimeReplicatedProps(TArray<class FLifetimeProperty>& OutLifetimeProps) const override;
 
 	/********************************************************************************************/
 	/*							Gameplay Ability												*/
@@ -62,13 +64,30 @@ private:
 	/********************************************************************************************/
 	/*									 Death & Respawning										*/
 	/********************************************************************************************/
+	FTransform MeshRelativeTransform;
+	UPROPERTY(EditDefaultsOnly, Category="Death")
+	float DeathMontageFinishTimeShift { -0.8f };
 	UPROPERTY(EditDefaultsOnly, Category="Death")
 	TObjectPtr<UAnimMontage> DeathMontage;
 
+	FTimerHandle DeathMontageTimerHandle;
+	void DeathMontageFinished();
+	void SetRagdollEnabled(bool bIsEnabled);
+
 	void PlayDeathAnimation();
 	
 	void StartDeathSequence();
 	void ReSpawn();
 	virtual void OnDead();
 	virtual void OnRespawn();
+public:
+	/********************************************************************************************/
+	/*									 Team													*/
+	/********************************************************************************************/
+	virtual void SetGenericTeamId(const FGenericTeamId& NewTeamID) override;
+	virtual FGenericTeamId GetGenericTeamId() const override;
+
+private:
+	UPROPERTY(Replicated)
+	FGenericTeamId TeamId;
 };

Source/Crunch/Public/GAS/CGameplayAbility.h

@@ -3,12 +3,10 @@
 #pragma once
 
 #include "CoreMinimal.h"
+#include "GenericTeamAgentInterface.h"
 #include "Abilities/GameplayAbility.h"
 #include "CGameplayAbility.generated.h"
 
-/**
- * 
- */
 UCLASS()
 class CRUNCH_API UCGameplayAbility : public UGameplayAbility
 {
@@ -17,6 +15,8 @@ class CRUNCH_API UCGameplayAbility : public UGameplayAbility
 protected:
 	UAnimInstance* GetOwnerAnimInstance() const;
 	TArray<FHitResult> GetHitResultFromSweepLocationTargetData(const FGameplayAbilityTargetDataHandle& TargetDataHandle,
-	                                                           float SphereSweepRadius = 30.f, bool bDrawDebug = false,
+	                                                           float SphereSweepRadius = 30.f,
+	                                                           ETeamAttitude::Type TargetTeam = ETeamAttitude::Hostile,
+	                                                           bool bDrawDebug = false,
 	                                                           bool bIgnoreSelf = true) const;
 };

Source/Crunch/Public/Game/CGameMode.h

@@ -3,6 +3,7 @@
 #pragma once
 
 #include "CoreMinimal.h"
+#include "GenericTeamAgentInterface.h"
 #include "GameFramework/GameModeBase.h"
 #include "CGameMode.generated.h"
 
@@ -10,4 +11,13 @@ UCLASS()
 class CRUNCH_API ACGameMode : public AGameModeBase
 {
 	GENERATED_BODY()
+public:
+	virtual APlayerController* SpawnPlayerController(ENetRole InRemoteRole, const FString& Options) override;
+private:
+	FGenericTeamId GetTeamIDForPlayer(const APlayerController* PlayerController) const;
+
+	AActor* FindNextStartSpotForTeam(const FGenericTeamId& TeamId) const;
+	
+	UPROPERTY(EditDefaultsOnly, Category="Team")
+	TMap<FGenericTeamId, FName> TeamStartSpotTagMap;
 };

Source/Crunch/Public/Player/CPlayerController.h

@@ -4,13 +4,14 @@
 
 #include "CoreMinimal.h"
 #include "GameFramework/PlayerController.h"
+#include "GenericTeamAgentInterface.h"
 #include "CPlayerController.generated.h"
 
 class UGameplayWidget;
 class ACPlayerCharacter;
 
 UCLASS()
-class CRUNCH_API ACPlayerController : public APlayerController
+class CRUNCH_API ACPlayerController : public APlayerController, public IGenericTeamAgentInterface
 {
 	GENERATED_BODY()
 
@@ -18,13 +19,23 @@ public:
 	virtual void OnPossess(APawn* InPawn) override;
 	virtual void AcknowledgePossession(APawn* P) override;
 
+	virtual FGenericTeamId GetGenericTeamId() const override;
+	virtual void SetGenericTeamId(const FGenericTeamId& NewTeamID) override;
+	virtual void GetLifetimeReplicatedProps(TArray<class FLifetimeProperty>& OutLifetimeProps) const override;
+
 private:
 	void SpawnGameplayWidget();
 
 	UPROPERTY()
 	TObjectPtr<ACPlayerCharacter> CPlayerCharacter;
+	
 	UPROPERTY(EditDefaultsOnly, Category= "UI")
 	TSubclassOf<UGameplayWidget> GameplayWidgetClass;
+	
 	UPROPERTY()
 	TObjectPtr<UGameplayWidget> GameplayWidget;
+	
+	UPROPERTY(Replicated)
+	FGenericTeamId TeamId;
+	
 };