Got the actual recruiting to work :)

src/game/Level.cpp

@@ -277,17 +277,22 @@ Effect Level::removeEffect(int id)
 
 void Level::handleRecruitingEvent(Engine& engine, SDL_Event& event) {
 
+    switch (event.type)
+    {
+    case SDL_KEYDOWN:
+        if (event.key.keysym.sym == SDLK_ESCAPE)
+        {
+            m_state = LevelState::MENUACTIVE_STATE;
+        }
+        if (event.key.keysym.sym == SDLK_UP || event.key.keysym.sym == SDLK_DOWN)
+        {
+            m_recruitingMenu.handleEvent(engine, event);
+        }
+        if (event.key.keysym.sym == SDLK_RETURN) 
+        {
             Building& b = m_buildings.at(m_selectedBuilding);
             UnitFaction u_faction = static_cast<UnitFaction> (b.m_faction);
-
-    
-    std::vector<UnitId> recruitableUnits = b.recruitableUnits();
-    //m_recruitingmenu.setoptions(recruitableUnits)
-    //show appropriate interface -> provide vector of UnitId
-    
-    //show Interface here
-    //select UnitId
-    UnitId unit_id = UnitId::INFANTERY;
+            UnitId unit_id = m_recruitingMenu.getSelectedOption();
 
             if(b.check_money(500)) {
                 if(b.check_spawn(m_units)){
@@ -297,6 +302,7 @@ void Level::handleRecruitingEvent(Engine& engine, SDL_Event& event) {
                 }
             }
         }
+}}
 
 //*******************helper functions for event Handling*************************************
 

src/game/ui/Recruitingmenu.cpp

@@ -84,6 +84,9 @@ namespace advanced_wars
     for (auto& [render_name, cost] : m_options)
     {
         //std::pair<std::string, int> unit_option = unitNames.at(cost2UnitId.at(cost));
+        if(i == m_selectedOption) {
+            m_selectedId = cost2UnitId.at(cost);
+        }
         
         SDL_Surface* textSurface = TTF_RenderText_Solid(
             font, render_name.c_str(), (i == m_selectedOption) ? yellow : white);
@@ -169,4 +172,8 @@ void RecruitingMenu::update(int x, int y)
     this->m_y = y;
 }
 
+UnitId RecruitingMenu::getSelectedOption(){
+    return m_selectedId;
+}
+
 }//namespace advance_wars
\ No newline at end of file

src/game/ui/Recruitingmenu.hpp

@@ -16,17 +16,16 @@ namespace advanced_wars
         int m_y;
         const std::unordered_map <UnitId ,std::pair <std::string, int>> unitNames;
         std::unordered_map<int, UnitId> cost2UnitId;
-    
-        void handleEvent(Engine& engine, SDL_Event& event);
-
-        
+        UnitId m_selectedId;
     
         void selectSprite();
 
-        std::string getSelectedOption();
-
         public:
 
+        UnitId getSelectedOption();
+
+        void handleEvent(Engine& engine, SDL_Event& event);
+
         void update(int x, int y);
 
         RecruitingMenu();