Added commissions system

Source/NakedDesire/Stats/StatsManager.cpp

@@ -88,10 +88,33 @@ void UStatsManager::SetObserved(const bool bObserved, AActor* Observer)
 	if (!Observer)
 		return;
 
+	bool bChanged = false;
 	if (bObserved)
-		Observers.AddUnique(Observer);
+	{
+		if (!Observers.Contains(Observer))
+		{
+			Observers.Add(Observer);
+			bChanged = true;
+		}
+	}
 	else
-		Observers.Remove(Observer);
+	{
+		bChanged = Observers.Remove(Observer) > 0;
+	}
+
+	if (bChanged)
+		OnObserversChanged.Broadcast();
+}
+
+int32 UStatsManager::GetObserverCount() const
+{
+	int32 Count = 0;
+	for (const TWeakObjectPtr<AActor>& Observer : Observers)
+	{
+		if (Observer.IsValid())
+			++Count;
+	}
+	return Count;
 }
 
 void UStatsManager::IncreaseEmbarrassment(const float Amount)

Source/NakedDesire/Stats/StatsManager.h

@@ -9,6 +9,7 @@
 class UClothingManager;
 class ANakedDesireCharacter;
 DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FAttributeUpdateSignature, float, CurrentValue, float, MaxValue);
+DECLARE_DYNAMIC_MULTICAST_DELEGATE(FObserversChangedSignature);
 
 
 UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) )
@@ -47,6 +48,14 @@ public:
 	// body parts that observer can actually see (GDD §7.1).
 	void SetObserved(bool bObserved, AActor* Observer);
 
+	// Number of NPCs currently perceiving the player (used by commission objectives, §13.4).
+	UFUNCTION(BlueprintPure)
+	int32 GetObserverCount() const;
+
+	// Fires whenever the observer set changes (an NPC gains or loses sight of the player).
+	UPROPERTY(BlueprintAssignable)
+	FObserversChangedSignature OnObserversChanged;
+
 	UFUNCTION(BlueprintCallable)
 	void IncreaseEmbarrassment(float Amount);
 	void DecreaseEmbarrassment(float Amount);