Added commissions system

Source/NakedDesire/Commissions/CommissionConstraint.h

@@ -0,0 +1,44 @@
+// © 2025 Naked People Team. All Rights Reserved.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "UObject/Object.h"
+#include "CommissionConstraint.generated.h"
+
+class ANakedDesireCharacter;
+
+DECLARE_MULTICAST_DELEGATE(FOnConstraintChangedSignature);
+
+/**
+ * A "while Y" gate attached to a UCommissionObjective. The objective only counts progress while every
+ * constraint reports IsMet(). A constraint subscribes to whatever world signal it watches and fires
+ * OnConstraintChanged so the owning objective re-evaluates. Constraints compose with any objective, so
+ * "expose boobs" + "while at the beach" + "during night" is data, not new objective code (see §13.4).
+ */
+UCLASS(Abstract, EditInlineNew, BlueprintType)
+class NAKEDDESIRE_API UCommissionConstraint : public UObject
+{
+	GENERATED_BODY()
+
+public:
+	FOnConstraintChangedSignature OnConstraintChanged;
+
+	void Activate(ANakedDesireCharacter* InPlayer);
+	void Deactivate();
+
+	virtual bool IsMet() const { return true; }
+
+	UFUNCTION(BlueprintPure)
+	virtual FText GetDescription() const;
+
+protected:
+	UPROPERTY()
+	ANakedDesireCharacter* Player = nullptr;
+
+	virtual void OnActivate() {}
+	virtual void OnDeactivate() {}
+
+	// Subclasses call this when the thing they watch changes; the owning objective re-evaluates.
+	void NotifyChanged() { OnConstraintChanged.Broadcast(); }
+};