AgeOfWar minigame

Source/Lost_Edge/Private/Minigame/AgeOfWar/AgeOfWarManager.cpp

@@ -3,11 +3,29 @@
 
 #include "AgeOfWarManager.h"
 
+#include "Camera/CameraComponent.h"
+
+#include "AgeOfWarUnit.h"
 #include "MainGameModeBase.h"
 #include "PlayerBase.h"
 
+TMap<UClass*, FAgeOfWarUnitStats> AAgeOfWarManager::unitStats = {};
+
+const FAgeOfWarUnitStats& AAgeOfWarManager::UnitGetStats(TSubclassOf<AAgeOfWarUnit> unitClass)
+{
+    return unitStats[unitClass];
+}
+
 AAgeOfWarManager::AAgeOfWarManager()
-{}
+{
+    auto root = CreateDefaultSubobject<USceneComponent>(TEXT("Scene"));
+
+    camera = CreateDefaultSubobject<UCameraComponent>(TEXT("Camera"));
+    camera->AttachToComponent(root, FAttachmentTransformRules::KeepRelativeTransform);
+
+    basePlayer = static_cast<AAgeOfWarUnit*>(CreateDefaultSubobject(TEXT("BasePlayer"), AAgeOfWarUnit::StaticClass(), baseClass, true, false));
+    baseComputer = static_cast<AAgeOfWarUnit*>(CreateDefaultSubobject(TEXT("BaseComputer"), AAgeOfWarUnit::StaticClass(), baseClass, true, false));
+}
 
 void AAgeOfWarManager::Start(APlayerBase* playerPawn, FMinigameEndCallback delegate)
 {
@@ -17,11 +35,25 @@ void AAgeOfWarManager::Start(APlayerBase* playerPawn, FMinigameEndCallback deleg
     AMinigame::Start(playerPawn, delegate);
 
     player->LockPlayer(FPlayerLock::All());
+    player->SwitchToView(this);
+
+    FillUnitStats();
 }
 
 void AAgeOfWarManager::End()
 {
+    unitStats.Empty();
+
+    player->ReturnPlayerView();
     player->UnlockPlayer(FPlayerLock::All());
 
     AMinigame::End();
 }
+
+void AAgeOfWarManager::UnitKill(AAgeOfWarUnit* unit)
+{}
+
+void AAgeOfWarManager::AddUnitStats(TSubclassOf<AAgeOfWarUnit> unitClass, FAgeOfWarUnitStats stats)
+{
+    unitStats.Add(unitClass, stats);
+}

Source/Lost_Edge/Private/Minigame/AgeOfWar/AgeOfWarManager.h

@@ -12,8 +12,34 @@ class AAgeOfWarManager : public AMinigame
     GENERATED_BODY()
 
 public:
+    static const struct FAgeOfWarUnitStats& UnitGetStats(TSubclassOf<AAgeOfWarUnit> unitClass);
+
     AAgeOfWarManager();
 
     virtual void Start(class APlayerBase* playerPawn, FMinigameEndCallback delegate) override;
     virtual void End() override;
+
+    void UnitKill(class AAgeOfWarUnit* unit);
+
+protected:
+    UFUNCTION(BlueprintImplementableEvent)
+    void FillUnitStats();
+
+    UFUNCTION(BlueprintCallable)
+    static void AddUnitStats(TSubclassOf<AAgeOfWarUnit> unitClass, struct FAgeOfWarUnitStats stats);
+
+    static TMap<UClass*, struct FAgeOfWarUnitStats> unitStats;
+
+    UPROPERTY(EditAnywhere)
+    class UCameraComponent* camera;
+
+    UPROPERTY(EditDefaultsOnly)
+    class TSubclassOf<AAgeOfWarUnit> baseClass;
+    UPROPERTY(EditAnywhere)
+    class AAgeOfWarUnit* basePlayer;
+    UPROPERTY(EditAnywhere)
+    class AAgeOfWarUnit* baseComputer;
+
+
+
 };

Source/Lost_Edge/Private/Minigame/AgeOfWar/AgeOfWarUnit.cpp

@@ -0,0 +1,84 @@
+// Oleg Petruny proprietary.
+
+
+#include "AgeOfWarUnit.h"
+
+#include "AgeOfWarManager.h"
+
+const FAgeOfWarUnitStats& AAgeOfWarUnit::GetStats()
+{
+    if(!stats)
+        stats = &AAgeOfWarManager::UnitGetStats(GetClass());
+
+    if(ensureAlways(stats))
+    {
+        auto errorMsg = FString::Printf(TEXT("AgeOfWarManager instance doesn't contain %s class stats... Destroying actor"), &GetClass()->GetName());
+        UE_LOG(LogTemp, Log, TEXT("%s"), *errorMsg);
+        GEngine->AddOnScreenDebugMessage(-1, 20.0f, FColor::Red, errorMsg);
+        static FAgeOfWarUnitStats s{};
+        stats = &s;
+        Destroy();
+    }
+
+    return *stats;
+}
+
+void AAgeOfWarUnit::BeginPlay()
+{
+    health = GetStats().health;
+}
+
+void AAgeOfWarUnit::EndPlay(const EEndPlayReason::Type EndPlayReason)
+{}
+
+void AAgeOfWarUnit::Tick(float deltaTime)
+{
+    Super::Tick(deltaTime);
+
+    if(GetStats().moveSpeed <= 0)
+        return;
+
+    // move unit forward
+    auto moveStep = GetActorForwardVector() * GetStats().moveSpeed;
+    FHitResult hit;
+    this->AddActorWorldOffset(moveStep, true, &hit, ETeleportType::None);
+
+    // check if blocked
+    if(!hit.bBlockingHit)
+        return;
+
+    forwardUnit = Cast<AAgeOfWarUnit>(hit.GetActor());
+    if(!forwardUnit) // something is wrong, only block with units
+    {
+        Destroy();
+        return;
+    }
+
+    // iterate to attackable unit
+    for(int i = 1; forwardUnit->team == team && i < GetStats().attackDistance; i += forwardUnit->GetStats().unitSize)
+        forwardUnit = forwardUnit->forwardUnit;
+
+    // if forward unit is in the same team skip attack
+    if(forwardUnit->team == team)
+        return;
+
+    // attack the forward unit
+    if(lastAttackTimestamp + GetStats().attackRate - FPlatformTime::Seconds() < 0)
+    {
+        lastAttackTimestamp = FPlatformTime::Seconds();
+        forwardUnit->Damage(GetStats().attackDamage);
+    }
+}
+
+void AAgeOfWarUnit::Damage(const int32 damage)
+{
+    health -= damage;
+
+    if(health > 0)
+        return;
+
+    if(IsValid(manager))
+        manager->UnitKill(this);
+    else
+        Destroy();
+}

Source/Lost_Edge/Private/Minigame/AgeOfWar/AgeOfWarUnit.h

@@ -0,0 +1,74 @@
+// Oleg Petruny proprietary.
+
+#pragma once
+
+#include "GameFramework/Actor.h"
+
+#include "AgeOfWarUnit.generated.h"
+
+USTRUCT(BlueprintType)
+struct FAgeOfWarUnitStats
+{
+    GENERATED_BODY()
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    FText name = FText::GetEmpty();
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    int32 price = 100;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    int32 health = 5;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    float moveSpeed = 1.0f;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    int32 attackDamage = 1;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    int32 attackDistance = 1;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    float attackRate = 1.0f;
+
+    UPROPERTY(EditAnywhere, BlueprintReadWrite)
+    int32 unitSize = 1;
+
+};
+
+UCLASS(Blueprintable, MinimalAPI, Abstract)
+class AAgeOfWarUnit : public AActor
+{
+    GENERATED_BODY()
+
+public:
+    enum class UnitTeam
+    {
+        Player,
+        AI
+    };
+
+    UFUNCTION(BlueprintPure)
+    const FAgeOfWarUnitStats& GetStats();
+
+    class AAgeOfWarManager* manager = nullptr;
+    const FAgeOfWarUnitStats* stats = nullptr;
+    UnitTeam team;
+
+protected:
+    virtual void BeginPlay() override;
+    virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;
+    virtual void Tick(float deltaTime) override;
+
+    void Damage(const int32 damage);
+
+    AAgeOfWarUnit* forwardUnit = nullptr;
+
+private:
+    int32 health;
+    FTimerHandle attackTimer;
+    double lastAttackTimestamp = 0;
+
+};
+