First iteration of buidling

src/building.hpp

 #ifndef BUILDING_HPP
 #define BUILDING_HPP
 
+#include <vector>
+#include <string>
+#include <map>
+
+enum class BuildingFaction {
+    None = 0,    
+    Player1,     
+    Player2,     
+    Player3,     
+    Player4      
+};
+
+enum class BuildingType {
+    Capital = 0,
+    City,
+    Factory,
+    Airport,
+    Seaport
+}
+
 class Building{
     public:
-    Building(int x, int y);
+    Building(int x, int y, BuildingFaction bFaction, int buildingHealth, BuildingType bType);
+    virtual ~Building() = default;
+
+    // Getters/Setters
+    int getX() const { return x; }
+    int getY() const { return y; }
+    // ...
+    // ...
 
     private:
         // Position
         int x;
         int y;
-};
 
+        int buildingHealth;
+        BuildingType bType;
+
+        // for capturing
+        bool capturable;
+        int captureProgress;     // Fortschritt der Eroberung (0,1,2) 
+        int captureThreshold;
+        BuildingFaction bFaction;
+        virtual bool isCapturable();
+        virtual bool getUnitType(); // to check if the unit is inf or any other viable type
+        int getCaptureProgress() const { return captureProgress; }
+        virtual void capture(BuildingFaction newFaction, int capturePoints); //start capture: HP of unit is 
+        virtual void resetCapture();//reset health and stuff
+
+        // when clicked, start Interface stuff
+        virtual void on_Click();
+        virtual void showBuildMenu();
+        virtual void hideBuildMenu();
+
+        //for recruiting
+        //check to see if enough monies and space available
+        virtual bool canRecruitUnit(const std::string& unitName) const;
+        virtual bool isSpawnPositionClear() const;
+        virtual bool hasEnoughResources(int cost) const;
+        virtual int getUnitCost(const std::string& unitName) const;
+        
+        virtual bool recruit_Unit(const std::string& name);
+        std::vector<std::string> recruitable_units; // buildable Units
+        std::map<std::string, int> unit_costs;
+};
 #endif
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