implicit item locking

src/lib/sim/Simulation.h

@@ -3,6 +3,7 @@
 #include <map>
 #include <memory>
 #include <random>
+#include <set>
 #include <string>
 #include <vector>
 
@@ -70,6 +71,10 @@ public:
     int  moduleSchematicLevel(const std::string& moduleId)    const;
     bool isModuleSchematicUnlocked(const std::string& moduleId) const;
 
+    // Implicit recipe/item unlock queries (REQ-LOCK-IMPLICIT).
+    bool isRecipeUnlocked(const std::string& recipeId) const;
+    bool isItemUnlocked(const std::string& itemId) const;
+
     // Checks affordability, deducts building blocks, and places the building.
     // Returns the new entity id, or kInvalidBuildingId if blocks are insufficient.
     BuildingId tryPlaceBuilding(BuildingType type, QPoint anchor, Rotation rotation);
@@ -131,6 +136,13 @@ private:
     std::map<std::string, SchematicState> m_schematicLevels;
     std::map<std::string, SchematicState> m_moduleSchematicLevels;
 
+    // Implicit unlock sets derived from schematic state (REQ-LOCK-IMPLICIT).
+    std::set<std::string> m_unlockedRecipeIds;
+    std::set<std::string> m_unlockedItemIds;
+
+    // Recomputes m_unlockedRecipeIds and m_unlockedItemIds from current schematic state.
+    void recomputeUnlocked();
+
     EntityAdmin                       m_admin;
     BeltSystem                        m_beltSystem;
     std::unique_ptr<BuildingSystem>   m_buildingSystem;