SinglePlayer Infinity Mode

Source/TurnBasedTutorial/EnemyAIController.cpp

@@ -8,7 +8,7 @@
 AEnemyAIController::AEnemyAIController()
     : Super() {
     PrimaryActorTick.bCanEverTick = true;
-    SetActorTickInterval(0.3f);
+    SetActorTickInterval(2.0f);
 }
 
 void AEnemyAIController::Tick(float DeltaSeconds) {
@@ -44,6 +44,67 @@ bool AEnemyAIController::IsAITurn() const {
     return bIsAITurn;
 }
 
+void AEnemyAIController::SpawnIfNeeded() {
+    RemoveDeadTroopers();
+    while (PossessedTroopers.Num() < MAX_TROOPERS_COUNT) {
+        const FVector Location = GetFreeLocation();
+        const FVector Rotation = {0.0f, 0.0f, 0.0f};
+        FTransform SpawnLocationAndRotation(Rotation);
+        SpawnLocationAndRotation.SetLocation(Location);
+        const TArray<TSubclassOf<ATrooper>> &LoadedTroopersAssets = GetWorld()->
+            GetGameState<ASinglePlayerGS>()->GetTroopersAssets();
+        AActor *Spawned = GetWorld()->SpawnActorDeferred<ATrooper>(
+            LoadedTroopersAssets[FMath::RandRange(
+                0, LoadedTroopersAssets.Num() - 1)],
+            SpawnLocationAndRotation);
+        Cast<ATrooper>(Spawned)->Initialize(
+            1, Location, TroopersCount++);
+        Spawned->FinishSpawning(SpawnLocationAndRotation);
+        Spawned->SetActorLocation(Location);
+        ATrooper *Trooper = Cast<ATrooper>(Spawned);
+        GetWorld()->GetGameState<ASinglePlayerGS>()->AddTrooper(Trooper);
+        PossessedTroopers.Add(Trooper);
+        Trooper->SetAIPossession(this);
+        Trooper->HighlightAsEnemy(PLAYER_INDEX);
+    }
+}
+
+// void AEnemyAIController::SetTrooperAssetsAndSpawn(
+// TArray<UClass *> TrooperAssets,
+// int TrooperCount) {
+// LoadedTrooperAssets = MoveTemp(TrooperAssets);
+// TroopersCount = TrooperCount;
+// SpawnIfNeeded();
+// }
+
+void AEnemyAIController::RemoveDeadTroopers() {
+    for (int index = 0; index < PossessedTroopers.Num(); ++index) {
+        if (!PossessedTroopers[index] || !PossessedTroopers[index]->
+            IsValidLowLevel() ||
+            PossessedTroopers[index]->IsDead()) {
+            PossessedTroopers.RemoveAtSwap(index);
+            index--;
+        }
+    }
+}
+
+FVector AEnemyAIController::GetFreeLocation() const {
+    for (const auto Location : SpawnPoints) {
+        bool bIsClose = false;
+        for (const auto Trooper : PossessedTroopers) {
+            if ((Location - Trooper->GetLocation()).Size() < 100.0f) {
+                bIsClose = true;
+                break;
+            }
+        }
+        if (bIsClose) {
+            continue;
+        }
+        return Location;
+    }
+    return {-2000.0f, FMath::RandRange(-2000.0f, 2000.0f), 0.0f};
+}
+
 void AEnemyAIController::MakeMove() {
     while (TroopersCursor < PossessedTroopers.Num()) {
         while (TroopersCursor < PossessedTroopers.Num() && (
@@ -111,6 +172,17 @@ bool AEnemyAIController::MoveTo(int TrooperIndex) {
     return true;
 }
 
+void AEnemyAIController::InitializeSpawnPoints() {
+    SpawnPoints.Add(FVector{
+        -2000.0f,
+        -(MAX_TROOPERS_COUNT - 1) * TROOPERS_DISTANCE.Y / 2,
+        0.0f
+    });
+    for (int index = 1; index < MAX_TROOPERS_COUNT; ++index) {
+        SpawnPoints.Add(SpawnPoints[SpawnPoints.Num() - 1] + TROOPERS_DISTANCE);
+    }
+}
+
 int AEnemyAIController::GetClosestTrooper() const {
     float minDistance = 1000000.0f;
     int minIndex = 0;
@@ -142,6 +214,8 @@ void AEnemyAIController::InitializeTroopers(
             }
         }
     }
+    InitializeSpawnPoints();
+    SpawnIfNeeded();
 }
 
 void AEnemyAIController::BeginPlay() {

Source/TurnBasedTutorial/EnemyAIController.h

@@ -13,8 +13,6 @@ class TURNBASEDTUTORIAL_API AEnemyAIController : public AActor {
     GENERATED_BODY()
 
 public:
-    static constexpr int AI_INDEX = 1;
-    
     AEnemyAIController();
 
     UFUNCTION()
@@ -39,7 +37,30 @@ public:
     UFUNCTION()
     bool IsAITurn() const;
 
+    UFUNCTION()
+    void SpawnIfNeeded();
+
+    // UFUNCTION()
+    // void SetTrooperAssetsAndSpawn(TArray<UClass *> TrooperAssets, int TrooperCount);
+
 private:
+    static constexpr int AI_INDEX = 1;
+
+    static constexpr int PLAYER_INDEX = 0;
+
+    static constexpr int MAX_TROOPERS_COUNT = 3;
+
+    UPROPERTY()
+    int TroopersCount = 5;
+
+    // UPROPERTY()
+    // TArray<UClass *> LoadedTrooperAssets;
+
+    UFUNCTION()
+    void RemoveDeadTroopers();
+    
+    FVector GetFreeLocation() const;
+    
     UFUNCTION()
     void MakeMove();
     
@@ -54,6 +75,8 @@ private:
 
     bool MoveTo(int TrooperIndex);
 
+    void InitializeSpawnPoints();
+    
     UPROPERTY()
     bool bIsAITurn = false;
 
@@ -65,4 +88,8 @@ private:
 
     UPROPERTY()
     TArray<ATrooper *> PlayerTroopers;
+
+    TArray<FVector> SpawnPoints;
+
+    const FVector TROOPERS_DISTANCE = {0.0f, 1000.0f, 0.0f};
 };

Source/TurnBasedTutorial/MyGameMode.cpp

@@ -6,6 +6,7 @@
 #include "MyGameState.h"
 #include "MyPlayerController.h"
 #include "MyPlayerState.h"
+#include "SinglePlayerGS.h"
 #include "Trooper.h"
 
 AMyGameMode::AMyGameMode()
@@ -26,7 +27,7 @@ auto AMyGameMode::GetMyGameState() const {
 }
 
 
-void AMyGameMode::InitializeBattleField_Implementation() const {
+void AMyGameMode::InitializeBattleField_Implementation() {
     UE_LOG(LogTemp, Warning, TEXT("InitializeBattleField"));
     FVector Location(2000.0f, -1000.0f, 0.0f);
     FRotator Rotation(0.0f, 180.0f, 0.0f);
@@ -39,7 +40,7 @@ void AMyGameMode::InitializeBattleField_Implementation() const {
         ),
         TEXT("Blueprint'/Game/Troopers/TrooperWizard.TrooperWizard_C'")
     };
-    TArray<UClass *> LoadedBpAssets;
+    // TArray<UClass *> LoadedBpAssets;
     for (int i = 0; i < bpPaths.Num(); ++i) {
         TSoftClassPtr<ATrooper> ActorBpClass = TSoftClassPtr<ATrooper>(
             FSoftObjectPath(bpPaths[i])
@@ -61,6 +62,7 @@ void AMyGameMode::InitializeBattleField_Implementation() const {
         GetMyGameState()->AddTrooper(Cast<ATrooper>(Spawned));
         Location += {0.f, 500.f, 0.0f};
     }
+    if (bIsMultiplayer) {
         Location = {-2000.0f, -1000.0f, 0.0f};
         Rotation = {0.0f, 0.0f, 0.0f};
         for (int i = 0; i < 5; ++i) {
@@ -77,9 +79,14 @@ void AMyGameMode::InitializeBattleField_Implementation() const {
             GetMyGameState()->AddTrooper(Cast<ATrooper>(Spawned));
             Location += {0.f, 500.f, 0.0f};
         }
+    } else {
+        // Cast<ASinglePlayerGS>(GetMyGameState())->GetEnemyAIController()->
+                                                 // SetTrooperAssetsAndSpawn(
+                                                     // LoadedBpAssets,
+                                                     // TrooperCount);
+    }
 }
 
-
 AActor *AMyGameMode::ChoosePlayerStart_Implementation(AController *Player) {
     UE_LOG(LogTemp, Warning, TEXT("GameMode ChoosePlayerStart %d"),
            GetNumPlayers());
@@ -206,4 +213,3 @@ void AMyGameMode::StartGame_Implementation() {
 //     return Cast<AMyPlayerController>(
 //         UGameplayStatics::GetPlayerController(GetWorld(), PlayerIndex));
 // }
-

Source/TurnBasedTutorial/MyGameMode.h

@@ -28,10 +28,16 @@ public:
     // void CycleTurns();
 
 protected:
+    UPROPERTY()
+    TArray<UClass *> LoadedBpAssets;
+    
+    UPROPERTY()
+    bool bIsMultiplayer = true;
+    
     void InitializeSpawnPointsIfNeeded(AController *Player);
 
     UFUNCTION(Server, Reliable)
-    void InitializeBattleField() const;
+    void InitializeBattleField();
 
     UPROPERTY()
     TMap<uint8, AMyPlayerStart *> SpawnPoints{};

Source/TurnBasedTutorial/MyGameState.cpp

@@ -84,6 +84,9 @@ void AMyGameState::DecreaseLivingTroopers(int PlayerIndex) {
     if (bGameIsOver)
         return;
     LivingTroopersCount[PlayerIndex]--;
+    if (!bIsMultiplayer && PlayerIndex == 1) {
+        return;
+    }
     if (LivingTroopersCount[PlayerIndex] <= 0) {
         UE_LOG(LogTemp, Warning, TEXT("Player %d lose!"), PlayerIndex);
         bGameIsOver = true;

Source/TurnBasedTutorial/MyGameState.h

@@ -48,7 +48,7 @@ public:
 
 protected:
     UPROPERTY()
-    bool IsMultiplayer = true;
+    bool bIsMultiplayer = true;
     
     UPROPERTY(Replicated)
     bool bGameIsOver = false;

Source/TurnBasedTutorial/SinglePlayerGM.cpp

@@ -5,6 +5,7 @@
 
 ASinglePlayerGM::ASinglePlayerGM() : Super() {
     GameStateClass = ASinglePlayerGS::StaticClass();
+    bIsMultiplayer = false;
 }
 
 void ASinglePlayerGM::BeginPlay() {

Source/TurnBasedTutorial/SinglePlayerGS.cpp

@@ -5,7 +5,7 @@
 
 ASinglePlayerGS::ASinglePlayerGS()
     : Super() {
-    IsMultiplayer = false;
+    bIsMultiplayer = false;
     PrimaryActorTick.bCanEverTick = true;
     SetActorTickInterval(0.5f);
 }
@@ -43,12 +43,22 @@ void ASinglePlayerGS::Tick(float DeltaSeconds) {
     Super::Tick(DeltaSeconds);
     if (EnemyAiManager->bIsEnded) {
         EnemyAiManager->bIsEnded = false;
+        EnemyAiManager->SpawnIfNeeded();
         CycleTurns();
     } else if (CurrentPlayerTurn == 1 && !EnemyAiManager->IsAITurn()) {
         CycleTurns();
     }
 }
 
+AEnemyAIController * ASinglePlayerGS::GetEnemyAIController() const {
+    return EnemyAiManager;
+}
+
+const TArray<TSubclassOf<ATrooper>> & ASinglePlayerGS::
+GetTroopersAssets() const {
+    return TrooperBpAssets;
+}
+
 void ASinglePlayerGS::GetLifetimeReplicatedProps(
     TArray<FLifetimeProperty> &OutLifetimeProps) const {
     Super::GetLifetimeReplicatedProps(OutLifetimeProps);

Source/TurnBasedTutorial/SinglePlayerGS.h

@@ -23,7 +23,14 @@ public:
 
     virtual void Tick(float DeltaSeconds) override;
 
+    AEnemyAIController *GetEnemyAIController() const;
+
+    const TArray<TSubclassOf<ATrooper>> &GetTroopersAssets() const;
+
 protected:
     UPROPERTY(Replicated)
     AEnemyAIController *EnemyAiManager = nullptr;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    TArray<TSubclassOf<ATrooper>> TrooperBpAssets;
 };