Added engine_efficiency capability

Added engine efficiency capability. Fuel flow file is adjusted according to defined engine efficiency in techology factors.

propulsion_design/src/engine_design/rubber/rubber_design.cpp

@@ -37,19 +37,26 @@ namespace design
 {
     void Rubber::initialize()
     {
+        /* Initialize the EngineDesigner */
+        EngineDesigner::initialize();
+
         /* Check whether the engine efficiency technology factor is 1.0 */
         const auto efficiency_factor = static_cast<float>(
             this->configuration()->at(
                 "module_configuration_file/program_settings/technology_factors/engine_efficiency/value"));
         if (std::abs(efficiency_factor - 1.0) > 1e-6)
         {
-            /** @todo Actually implement the change in the engine efficiency factor. */
-            throw std::runtime_error("[design::Rubber::initialize()] The engine efficiency technology factor is not 1.0. Changing this factor is not yet supported!");
+            std::filesystem::path path_to_csv = EngineDesigner::engine_database(); 
+            std::string engine_name = this->configuration()->at("module_configuration_file/program_settings/propulsion/engine/Rubber/engine_model/value");
+            std::string added_path = (std::filesystem::path(path_to_csv) / engine_name / engine_name).string();
+            DeckData deck_data = DeckData::from_csv(added_path.append("_WF.csv"));
+
+            DeckData deck_data_scaled = EngineDesigner::scale_deck_data_values(deck_data, EngineDesigner::technology_factor("engine_efficiency"));    
+            EngineDesigner::write_deck_value(deck_data_scaled, engine_name);
+            utility::print(std::format(
+                "Design with engine efficiency factor = {:.2f}", efficiency_factor), Level::Info);
         }
 
-        /* Initialize the EngineDesigner */
-        EngineDesigner::initialize();
-
         /* Loop through all propulsion settings */
         for (const auto &propulsion : this->configuration()->getVector("module_configuration_file/program_settings/propulsion"))
         {