Implement technology tree, research queue by least remaining work, and unit/building tech availability & obsolescence

actionneededmanager.cpp

@@ -33,6 +33,9 @@ bool ActionNeededManager::loadConfigFile(const QString &filePath)
     if (node.hasChild("track_city_free_population")) {
         m_config.trackCityFreePopulation = node["track_city_free_population"].asBool(true);
     }
+    if (node.hasChild("track_no_research")) {
+        m_config.trackNoResearch = node["track_no_research"].asBool(true);
+    }
     if (node.hasChild("max_visible_items")) {
         m_config.maxVisibleItems = node["max_visible_items"].asInt(8);
     }
@@ -70,6 +73,10 @@ bool ActionNeededManager::loadConfigFile(const QString &filePath)
         QString hex = node["city_free_pop_color"].asString("#46DC82");
         m_config.cityFreePopColor = QColor(hex);
     }
+    if (node.hasChild("no_research_color")) {
+        QString hex = node["no_research_color"].asString("#38C8FF");
+        m_config.noResearchColor = QColor(hex);
+    }
     if (node.hasChild("card_bg_color")) {
         QString hex = node["card_bg_color"].asString("#121822");
         m_config.cardBgColor = QColor(hex);
@@ -85,7 +92,8 @@ bool ActionNeededManager::loadConfigFile(const QString &filePath)
 
 void ActionNeededManager::update(float deltaTime, int activePlayerId,
                                 const std::vector<std::shared_ptr<Unit>> &units,
-                                const std::vector<City> &cities)
+                                const std::vector<City> &cities,
+                                bool needsResearch)
 {
     if (!m_config.enabled) return;
 
@@ -93,6 +101,25 @@ void ActionNeededManager::update(float deltaTime, int activePlayerId,
 
     std::set<QString> currentConditionKeys;
 
+    // 0. Player has no active research
+    if (m_config.trackNoResearch && needsResearch) {
+        QString key = QString("%1_%2").arg(static_cast<int>(ActionNeededType::NoResearch)).arg(activePlayerId);
+        currentConditionKeys.insert(key);
+
+        auto it = std::find_if(m_items.begin(), m_items.end(), [&](const ActionItem &item) {
+            return item.type == ActionNeededType::NoResearch && item.entityId == activePlayerId;
+        });
+
+        if (it == m_items.end()) {
+            ActionItem newItem;
+            newItem.type = ActionNeededType::NoResearch;
+            newItem.entityId = activePlayerId;
+            newItem.firstDetectedTime = m_elapsedGameTime;
+            newItem.dismissed = false;
+            m_items.push_back(newItem);
+        }
+    }
+
     // 1. Idle Units waiting for action
     if (m_config.trackIdleUnits) {
         for (const auto &u : units) {