Enemy AI

.gitignore

@@ -1,5 +1,6 @@
 # Visual Studio 2015 user specific files
 .vs/
+.idea/
 
 # Compiled Object files
 *.slo

Config/DefaultEngine.ini

@@ -1,7 +1,7 @@
 
 
 [/Script/EngineSettings.GameMapsSettings]
-EditorStartupMap=/Game/BattleField/BattleFieldMap.BattleFieldMap
+EditorStartupMap=/Game/MainMenu/MainMenuLevel.MainMenuLevel
 LocalMapOptions=
 TransitionMap=None
 bUseSplitscreen=True

Source/TurnBasedTutorial/EnemyAIController.cpp

@@ -0,0 +1,149 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#include "EnemyAIController.h"
+#include "SinglePlayerGS.h"
+#include "Kismet/GameplayStatics.h"
+#include "GenericPlatform/GenericPlatformMath.h"
+
+AEnemyAIController::AEnemyAIController()
+    : Super() {
+    PrimaryActorTick.bCanEverTick = true;
+    SetActorTickInterval(0.3f);
+}
+
+void AEnemyAIController::Tick(float DeltaSeconds) {
+    Super::Tick(DeltaSeconds);
+    if (bIsAITurn && !bIsActing) {
+        if (TroopersCursor >= PossessedTroopers.Num()) {
+            EndTurn();
+        } else {
+            MakeMove();
+        }
+    }
+}
+
+
+void AEnemyAIController::StartTurn() {
+    UE_LOG(LogTemp, Warning, TEXT("Enemy AI StartTurn"));
+    bIsAITurn = true;
+    bIsActing = false;
+    // MakeMove();
+}
+
+void AEnemyAIController::EndTurn() {
+    bIsAITurn = false;
+    TroopersCursor = 0;
+    bIsEnded = true;
+}
+
+void AEnemyAIController::ActionDone() {
+    bIsActing = false;
+}
+
+bool AEnemyAIController::IsAITurn() const {
+    return bIsAITurn;
+}
+
+void AEnemyAIController::MakeMove() {
+    while (TroopersCursor < PossessedTroopers.Num()) {
+        while (TroopersCursor < PossessedTroopers.Num() && (
+                   !PossessedTroopers[TroopersCursor] ||
+                   !PossessedTroopers[TroopersCursor]->IsValidLowLevel()
+                   || PossessedTroopers[TroopersCursor]->IsDead())) {
+            ++TroopersCursor;
+        }
+        if (TroopersCursor >= PossessedTroopers.Num()) {
+            return;
+        }
+        const int Index = GetClosestTrooper();
+        bool failed;
+        if (!IsCloseEnough(Index)) {
+            failed = MoveTo(Index);
+        } else {
+            failed = TryAttack(Index);
+        }
+        if (failed) {
+            TroopersCursor++;
+        } else {
+            return;
+        }
+    }
+}
+
+bool AEnemyAIController::IsCloseEnough(int TrooperIndex) const {
+    const ATrooper *CurrentTrooper = PossessedTroopers[TroopersCursor];
+    const ATrooper *OtherTrooper = PlayerTroopers[TrooperIndex];
+    return (CurrentTrooper->GetLocation() - OtherTrooper->GetLocation()).Size()
+           <= CurrentTrooper->GetRealActionRadius(1);
+}
+
+bool AEnemyAIController::TryAttack(int TrooperIndex) {
+    ATrooper *Attacker = PossessedTroopers[TroopersCursor];
+    const auto Location = PlayerTroopers[TrooperIndex]->GetLocation();
+    constexpr int ActionIndex = 1;
+    if (Attacker->CheckAttackCorrectness(Location, ActionIndex)) {
+        bIsActing = true;
+        Attacker->Attack(ActionIndex, Location);
+        return false;
+    }
+    return true;
+}
+
+bool AEnemyAIController::MoveTo(int TrooperIndex) {
+    ATrooper *Trooper = PossessedTroopers[TroopersCursor];
+    const FVector CurrentLocation = Trooper->GetLocation();
+    const FVector Destination = PlayerTroopers[TrooperIndex]->GetLocation();
+    constexpr int ActionIndex = 1;
+    constexpr int MoveActionIndex = 0;
+    const float AttackRadius = Trooper->GetRealActionRadius(ActionIndex);
+    const FVector Vector = Destination - CurrentLocation;
+    const float MaxLength = Trooper->GetRealActionRadius(MoveActionIndex);
+    float PathLength = Vector.Size() - AttackRadius + 10.f;
+    PathLength = FMath::Min(PathLength, MaxLength);
+    FVector Location = CurrentLocation + Vector.GetSafeNormal2D() *
+                       PathLength;
+    Location.Z = 0.0f;
+    if (PathLength > 1.0f && Trooper->CheckMoveCorrectness(Location)) {
+        bIsActing = true;
+        Trooper->MoveTrooper(Location);
+        return false;
+    }
+    return true;
+}
+
+int AEnemyAIController::GetClosestTrooper() const {
+    float minDistance = 1000000.0f;
+    int minIndex = 0;
+    const ATrooper *CurrentTrooper = PossessedTroopers[TroopersCursor];
+    for (int index = 0; index < PlayerTroopers.Num(); ++index) {
+        const ATrooper *OtherTrooper = PlayerTroopers[index];
+        if (OtherTrooper->IsValidLowLevel() && !OtherTrooper->IsDead()) {
+            const float distance = (
+                CurrentTrooper->GetLocation() - OtherTrooper->
+                GetLocation()).Size();
+            if (distance < minDistance) {
+                minDistance = distance;
+                minIndex = index;
+            }
+        }
+    }
+    return minIndex;
+}
+
+void AEnemyAIController::InitializeTroopers(
+    const TArray<ATrooper *> &Troopers) {
+    for (const auto Trooper : Troopers) {
+        if (Trooper != nullptr) {
+            if (Trooper->GetPlayerIndex() == AI_INDEX) {
+                Trooper->SetAIPossession(this);
+                PossessedTroopers.Add(Trooper);
+            } else {
+                PlayerTroopers.Add(Trooper);
+            }
+        }
+    }
+}
+
+void AEnemyAIController::BeginPlay() {
+    Super::BeginPlay();
+}

Source/TurnBasedTutorial/EnemyAIController.h

@@ -0,0 +1,68 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "EnemyAIController.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class TURNBASEDTUTORIAL_API AEnemyAIController : public AActor {
+    GENERATED_BODY()
+
+public:
+    static constexpr int AI_INDEX = 1;
+    
+    AEnemyAIController();
+
+    UFUNCTION()
+    void StartTurn();
+
+    UFUNCTION()
+    void EndTurn();
+
+    UFUNCTION()
+    void ActionDone();
+
+    UFUNCTION()
+    void InitializeTroopers(const TArray<ATrooper *> &Troopers);
+
+    virtual void BeginPlay() override;
+    
+    virtual void Tick(float DeltaSeconds) override;
+
+    UPROPERTY()
+    bool bIsEnded = false;
+
+    UFUNCTION()
+    bool IsAITurn() const;
+
+private:
+    UFUNCTION()
+    void MakeMove();
+    
+    UPROPERTY()
+    int TroopersCursor = 0;
+
+    int GetClosestTrooper() const;
+
+    bool IsCloseEnough(int TrooperIndex) const;
+
+    bool TryAttack(int TrooperIndex);
+
+    bool MoveTo(int TrooperIndex);
+    
+    UPROPERTY()
+    bool bIsAITurn = false;
+
+    UPROPERTY()
+    bool bIsActing = false;
+
+    UPROPERTY()
+    TArray<ATrooper *> PossessedTroopers;
+
+    UPROPERTY()
+    TArray<ATrooper *> PlayerTroopers;
+};

Source/TurnBasedTutorial/MyExplosion.cpp

@@ -4,7 +4,6 @@
 #include "MyExplosion.h"
 
 #include "Trooper.h"
-#include "Components/SphereComponent.h"
 #include "Net/UnrealNetwork.h"
 #include "Particles/ParticleSystemComponent.h"
 
@@ -51,7 +50,7 @@ void AMyExplosion::NotifyActorBeginOverlap(AActor *OtherActor) {
                PlayerIndex);
         if (PlayerIndex != -1 && PlayerIndex != OtherTrooper->
             GetPlayerIndex()) {
-            OtherTrooper->TakeDamage(Damage);
+            OtherTrooper->TrooperTakeDamage(Damage);
         }
     } else {
         UE_LOG(LogTemp, Warning, TEXT("Overlapped not a trooper"));

Source/TurnBasedTutorial/MyExplosion.h

@@ -2,7 +2,6 @@
 
 #pragma once
 
-#include "Components/SphereComponent.h"
 #include "CoreMinimal.h"
 #include "GameFramework/Actor.h"
 #include "MyExplosion.generated.h"

Source/TurnBasedTutorial/MyGameMode.h

@@ -27,7 +27,7 @@ public:
     // UFUNCTION(BlueprintCallable)
     // void CycleTurns();
 
-private:
+protected:
     void InitializeSpawnPointsIfNeeded(AController *Player);
 
     UFUNCTION(Server, Reliable)

Source/TurnBasedTutorial/MyGameState.cpp

@@ -10,20 +10,27 @@ auto AMyGameState::GetMyPlayerState(uint8 PlayerIndex) const {
     return Cast<AMyPlayerState>(PlayerArray[PlayerIndex]);
 }
 
+AMyGameState::AMyGameState() : Super() {
+}
+
 void AMyGameState::BeginPlay() {
     Super::BeginPlay();
-    LivingTroopers.SetNum(2);
+    LivingTroopersCount.SetNum(2);
 }
 
 void AMyGameState::AddTrooper_Implementation(ATrooper *Trooper) {
-    if (Trooper->GetPlayerIndex() >= 0 && Trooper->GetPlayerIndex() <= LivingTroopers.Num()) {
+    if (Trooper->GetPlayerIndex() >= 0 && Trooper->GetPlayerIndex() <=
-        LivingTroopers[Trooper->GetPlayerIndex()]++;
+        LivingTroopersCount.Num()) {
+        if (LivingTroopersCount.Num() < 2) {
+            LivingTroopersCount.SetNum(2);
+        }
+        LivingTroopersCount[Trooper->GetPlayerIndex()]++;
     }
     Troopers.Add(Trooper);
 }
 
 void AMyGameState::StartGame_Implementation() {
-    PlayerNotInTurn()->SetEnemySelection();
+    // PlayerNotInTurn()->SetEnemySelection();
     PlayerInTurn()->SetEnemySelection();
     bGameStarted = true;
     PlayerInTurn()->StartTurn();
@@ -75,9 +82,9 @@ bool AMyGameState::IsGameStarted() const {
 
 void AMyGameState::DecreaseLivingTroopers(int PlayerIndex) {
     if (bGameIsOver)
-         return;
+        return;
-    LivingTroopers[PlayerIndex]--;
+    LivingTroopersCount[PlayerIndex]--;
-    if (LivingTroopers[PlayerIndex] <= 0) {
+    if (LivingTroopersCount[PlayerIndex] <= 0) {
         UE_LOG(LogTemp, Warning, TEXT("Player %d lose!"), PlayerIndex);
         bGameIsOver = true;
     }

Source/TurnBasedTutorial/MyGameState.h

@@ -15,16 +15,18 @@ class TURNBASEDTUTORIAL_API AMyGameState : public AGameState {
     GENERATED_BODY()
 
 public:
+    AMyGameState();
+    
     virtual void BeginPlay() override;
     
     UFUNCTION(Server, Reliable)
-    void AddTrooper(ATrooper *Trooper);
+    virtual void AddTrooper(ATrooper *Trooper);
 
     UFUNCTION(Server, Reliable)
     void StartGame();
     
     UFUNCTION(BlueprintCallable, Server, Reliable)
-    void CycleTurns();
+    virtual void CycleTurns();
 
     UFUNCTION(BlueprintPure)
     AMyPlayerState *PlayerInTurn() const;
@@ -44,7 +46,10 @@ public:
     UFUNCTION()
     void DecreaseLivingTroopers(int PlayerIndex);
 
-private:
+protected:
+    UPROPERTY()
+    bool IsMultiplayer = true;
+    
     UPROPERTY(Replicated)
     bool bGameIsOver = false;
     
@@ -52,7 +57,7 @@ private:
     TArray<ATrooper *> Troopers;
 
     UPROPERTY(Replicated)
-    TArray<int> LivingTroopers;
+    TArray<int> LivingTroopersCount;
 
     UPROPERTY(Replicated)
     bool bGameStarted = false;

Source/TurnBasedTutorial/MyPawn.cpp

@@ -29,11 +29,6 @@ void AMyPawn::MoveForward(float Val) {
     }
 }
 
-// Called every frame
-void AMyPawn::Tick(float DeltaTime) {
-    Super::Tick(DeltaTime);
-}
-
 // Called to bind functionality to input
 void AMyPawn::SetupPlayerInputComponent(UInputComponent *PlayerInputComponent) {
     Super::SetupPlayerInputComponent(PlayerInputComponent);

Source/TurnBasedTutorial/MyPawn.h

@@ -22,8 +22,6 @@ protected:
     virtual void MoveForward(float Val) override;
 
 public:
-    // Called every frame
-    virtual void Tick(float DeltaTime) override;
 
     // Called to bind functionality to input
     virtual void SetupPlayerInputComponent(

Source/TurnBasedTutorial/MyPlayerController.cpp

@@ -12,6 +12,7 @@ AMyPlayerController::AMyPlayerController()
     : Super()/*, bIsMyTurn(false), SelectedTrooper(nullptr)*/ {
     UE_LOG(LogTemp, Warning, TEXT("Player controller created"));
     SetShowMouseCursor(true);
+    PlayerIndex = 0;
 }
 
 void AMyPlayerController::BeginPlay() {

Source/TurnBasedTutorial/MyPlayerState.cpp

@@ -1,8 +1,6 @@
 // Fill out your copyright notice in the Description page of Project Settings.
 
-
 #include "MyPlayerState.h"
-
 #include "MyGameState.h"
 #include "Kismet/GameplayStatics.h"
 #include "Net/UnrealNetwork.h"
@@ -81,9 +79,7 @@ void AMyPlayerState::MoveTrooper_Implementation(ATrooper *Trooper,
 
 void AMyPlayerState::Attack_Implementation(ATrooper *Attacker,
                                            FVector Location,
-                                           int ActionIndex,
+                                           int ActionIndex) {
-                                           const TArray<ATrooper *> &
-                                           Troopers) {
     if (Attacker->CheckAttackCorrectness(Location, ActionIndex)) {
         Attacker->Attack(ActionIndex, Location);
         // for (const auto Trooper : Troopers) {
@@ -169,7 +165,7 @@ void AMyPlayerState::OnPlayerAction(const FHitResult &HitResult) {
                     // ATTACK! ATTACK!
                     UE_LOG(LogTemp, Warning, TEXT("Do attack"));
                     Attack(SelectedTrooper, NewlySelectedLocation,
-                           CurrentAction, GetMyGameState()->GetTroopers());
+                           CurrentAction);
                     SelectedTrooper->SetSelection(false, CurrentAction);
                     SelectedTrooper = nullptr;
                     break;

Source/TurnBasedTutorial/MyPlayerState.h

@@ -33,8 +33,7 @@ public:
     UFUNCTION(Server, Reliable)
     void Attack(ATrooper *Attacker,
                 FVector Location,
-                int ActionIndex,
+                int ActionIndex);
-                const TArray<ATrooper *> &Troopers);
 
     // UFUNCTION(Client, Reliable)
     // void CycleTurns() const;

Source/TurnBasedTutorial/MyProjectile.cpp

@@ -71,7 +71,7 @@ void AMyProjectile::NotifyActorBeginOverlap(AActor *OtherActor) {
                PlayerIndex);
         if (PlayerIndex != -1 && PlayerIndex != OtherTrooper->
             GetPlayerIndex()) {
-            OtherTrooper->TakeDamage(Damage);
+            OtherTrooper->TrooperTakeDamage(Damage);
         }
     } else {
         UE_LOG(LogTemp, Warning, TEXT("Overlapped not a trooper"));

Source/TurnBasedTutorial/SinglePlayerGM.cpp

@@ -0,0 +1,19 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#include "SinglePlayerGM.h"
+#include "SinglePlayerGS.h"
+
+ASinglePlayerGM::ASinglePlayerGM() : Super() {
+    GameStateClass = ASinglePlayerGS::StaticClass();
+}
+
+void ASinglePlayerGM::BeginPlay() {
+    Super::BeginPlay();
+    UE_LOG(LogTemp, Warning, TEXT("SinglePlayer GameMode BeginPlay"));
+    GameStateClass = ASinglePlayerGS::StaticClass();
+    StartGame();
+}
+
+void ASinglePlayerGM::PostLogin(APlayerController *NewPlayer) {
+    AGameMode::PostLogin(NewPlayer);
+}

Source/TurnBasedTutorial/SinglePlayerGM.h

@@ -0,0 +1,23 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "MyGameMode.h"
+#include "SinglePlayerGM.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class TURNBASEDTUTORIAL_API ASinglePlayerGM : public AMyGameMode {
+    GENERATED_BODY()
+    
+public:
+    ASinglePlayerGM();
+
+    virtual void BeginPlay() override;
+
+    virtual void PostLogin(APlayerController *NewPlayer) override;
+    
+};

Source/TurnBasedTutorial/SinglePlayerGS.cpp

@@ -0,0 +1,56 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#include "SinglePlayerGS.h"
+#include "Net/UnrealNetwork.h"
+
+ASinglePlayerGS::ASinglePlayerGS()
+    : Super() {
+    IsMultiplayer = false;
+    PrimaryActorTick.bCanEverTick = true;
+    SetActorTickInterval(0.5f);
+}
+
+void ASinglePlayerGS::BeginPlay() {
+    Super::BeginPlay();
+    UE_LOG(LogTemp, Warning, TEXT("SinglePlayer GameState BeginPlay"));
+    if (LivingTroopersCount.Num() < 2) {
+        LivingTroopersCount.SetNum(2);
+    }
+    EnemyAiManager = GetWorld()->SpawnActor<AEnemyAIController>(
+        AEnemyAIController::StaticClass(), FVector(0.0f, 0.0f, 1000.0f),
+        FRotator(0.0f, 0.0f, 0.0f), FActorSpawnParameters());
+    EnemyAiManager->InitializeTroopers(Troopers);
+}
+
+void ASinglePlayerGS::CycleTurns() {
+    if (CurrentPlayerTurn == 0) {
+        PlayerInTurn()->EndTurn();
+    }
+    for (const auto Trooper : Troopers) {
+        if (Trooper != nullptr) {
+            Trooper->ResetActionPoints();
+        }
+    }
+    CurrentPlayerTurn = !CurrentPlayerTurn;
+    if (CurrentPlayerTurn == 0) {
+        PlayerInTurn()->StartTurn();
+    } else {
+        EnemyAiManager->StartTurn();
+    }
+}
+
+void ASinglePlayerGS::Tick(float DeltaSeconds) {
+    Super::Tick(DeltaSeconds);
+    if (EnemyAiManager->bIsEnded) {
+        EnemyAiManager->bIsEnded = false;
+        CycleTurns();
+    } else if (CurrentPlayerTurn == 1 && !EnemyAiManager->IsAITurn()) {
+        CycleTurns();
+    }
+}
+
+void ASinglePlayerGS::GetLifetimeReplicatedProps(
+    TArray<FLifetimeProperty> &OutLifetimeProps) const {
+    Super::GetLifetimeReplicatedProps(OutLifetimeProps);
+    DOREPLIFETIME(ASinglePlayerGS, EnemyAiManager);
+}

Source/TurnBasedTutorial/SinglePlayerGS.h

@@ -0,0 +1,29 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "EnemyAIController.h"
+#include "MyGameState.h"
+#include "SinglePlayerGS.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class TURNBASEDTUTORIAL_API ASinglePlayerGS : public AMyGameState {
+    GENERATED_BODY()
+    
+public:
+    ASinglePlayerGS();
+
+    virtual void BeginPlay() override;
+
+    virtual void CycleTurns() override;
+
+    virtual void Tick(float DeltaSeconds) override;
+
+protected:
+    UPROPERTY(Replicated)
+    AEnemyAIController *EnemyAiManager = nullptr;
+};

Source/TurnBasedTutorial/Trooper.cpp

@@ -3,8 +3,6 @@
 
 #include "HealthBar.h"
 #include "MyGameState.h"
-#include "MyPlayerController.h"
-#include "MyPlayerState.h"
 #include "MyProjectile.h"
 #include "Components/WidgetComponent.h"
 #include "Net/UnrealNetwork.h"
@@ -89,14 +87,16 @@ void ATrooper::Tick(float const DeltaTime) {
         }
         if (AttackPlayedTime >= AttackDuration) {
             AttackPlayedTime = 0.0f;
-            bIsAttacking = false;
+            // bIsAttacking = false;
+            SetIsAttacking(false);
         }
     }
     if (bIsTakingDamage) {
         TakingDamagePlayedTime += DeltaTime;
         if (TakingDamagePlayedTime >= TakingDamageDuration) {
             TakingDamagePlayedTime = 0.0f;
-            bIsTakingDamage = false;
+            // bIsTakingDamage = false;
+            SetIsTakingDamage(false);
         }
     }
     if (bIsMoving) {
@@ -106,7 +106,8 @@ void ATrooper::Tick(float const DeltaTime) {
         if (PositionVector.Size() >= (TargetLocation - CurrentLocation).
             Size()) {
             CurrentLocation = TargetLocation;
-            bIsMoving = false;
+            // bIsMoving = false;
+            SetIsMoving(false);
         } else {
             CurrentLocation += PositionVector;
         }
@@ -114,6 +115,42 @@ void ATrooper::Tick(float const DeltaTime) {
     }
 }
 
+void ATrooper::SetIsAttacking(bool IsAttacking) {
+    bIsAttacking = IsAttacking;
+    if (IsAttacking) {
+        SetActorTickEnabled(true);
+    } else {
+        TryDisableTick();
+    }
+}
+
+void ATrooper::SetIsTakingDamage(bool IsTakingDamage) {
+    bIsTakingDamage = IsTakingDamage;
+    if (IsTakingDamage) {
+        SetActorTickEnabled(true);
+    } else {
+        TryDisableTick();
+    }
+}
+
+void ATrooper::SetIsMoving(bool IsMoving) {
+    bIsMoving = IsMoving;
+    if (IsMoving) {
+        SetActorTickEnabled(true);
+    } else {
+        TryDisableTick();
+    }
+}
+
+void ATrooper::TryDisableTick() {
+    if (!bIsAttacking && !bIsTakingDamage && !bIsMoving) {
+        SetActorTickEnabled(false);
+        if (AIController && AIController->IsValidLowLevel()) {
+            AIController->ActionDone();
+        }
+    }
+}
+
 // void ATrooper::OnRepNotify_PlayerIndex() const {
 //     const AMyPlayerState *player = Cast<AMyPlayerState>(
 //         GetPlayerState());
@@ -131,7 +168,8 @@ void ATrooper::Tick(float const DeltaTime) {
 
 void ATrooper::MoveTrooper_Implementation(FVector const NewPos) {
     TargetLocation = NewPos;
-    bIsMoving = true;
+    // bIsMoving = true;
+    SetIsMoving(true);
     ActionPoints -= (NewPos - CurrentLocation).Size() * MoveCost;
 }
 
@@ -196,6 +234,17 @@ float ATrooper::GetActionRadius(int action) const {
     }
 }
 
+float ATrooper::GetRealActionRadius(int action) const {
+    switch (action) {
+        case 1:
+            return AttackAbility->ActionRadius;
+        case 2:
+            return SpecialAbility->ActionRadius;
+        default:
+            return ActionPoints / MoveCost;
+    }
+}
+
 float ATrooper::GetHitPoints() const {
     return HitPoints;
 }
@@ -247,7 +296,15 @@ UAbility *ATrooper::GetAbility(int AbilityIndex) const {
     }
 }
 
-void ATrooper::TakeDamage_Implementation(float Damage) {
+void ATrooper::SetAIPossession(AEnemyAIController *EnemyController) {
+    AIController = EnemyController;
+}
+
+bool ATrooper::IsDead() const {
+    return bIsDead;
+}
+
+void ATrooper::TrooperTakeDamage_Implementation(float Damage) {
     if (bIsTakingDamage || bIsDead) {
         return;
     }
@@ -257,7 +314,8 @@ void ATrooper::TakeDamage_Implementation(float Damage) {
         SetLifeSpan(DyingAnimationDuration);
         GetWorld()->GetGameState<AMyGameState>()->DecreaseLivingTroopers(PlayerIndex);
     } else {
-        bIsTakingDamage = true;
+        // bIsTakingDamage = true;
+        SetIsTakingDamage(true);
     }
 }
 
@@ -315,7 +373,8 @@ int ATrooper::GetAnimationValue() {
 }
 
 void ATrooper::Attack_Implementation(int AbilityIndex, FVector ToLocation) {
-    bIsAttacking = true;
+    // bIsAttacking = true;
+    SetIsAttacking(true);
     bIsWaitingForFire = true;
     ActionPoints -= GetAbility(AbilityIndex)->ActionCost;
     CurrentAbilityIndex = AbilityIndex;

Source/TurnBasedTutorial/Trooper.h

@@ -2,6 +2,7 @@
 
 #include "CoreMinimal.h"
 #include "Ability.h"
+#include "EnemyAIController.h"
 #include "GameFramework/Character.h"
 #include "Trooper.generated.h"
 
@@ -44,6 +45,9 @@ public:
     UFUNCTION()
     float GetActionRadius(int action) const;
 
+    UFUNCTION()
+    float GetRealActionRadius(int action) const;
+
     UFUNCTION()
     float GetHitPoints() const;
 
@@ -66,10 +70,19 @@ public:
     UAbility *GetAbility(int AbilityIndex) const;
 
     UFUNCTION(Server, Reliable)
-    void TakeDamage(float Damage);
+    void TrooperTakeDamage(float Damage);
+
+    UFUNCTION()
+    void SetAIPossession(AEnemyAIController *EnemyController);
+
+    UFUNCTION()
+    bool IsDead() const;
 
 protected:
     constexpr static float PIXELS_IN_RADIUS = 50;
+
+    UPROPERTY()
+    AEnemyAIController *AIController = nullptr;
     
     UPROPERTY(EditAnywhere)
     UMaterialInterface *GreenMaterial = nullptr;
@@ -179,6 +192,14 @@ protected:
 
     UPROPERTY(Replicated)
     bool bIsMoving = false;
+
+    void SetIsAttacking(bool IsAttacking);
+
+    void SetIsTakingDamage(bool IsTakingDamage);
+
+    void SetIsMoving(bool IsMoving);
+
+    void TryDisableTick();
 };
 
 // UCLASS()