Nanocom Boosters and Authentic FM-Taro Scale Logic (#315)

* Groundwork for nanocom boosters

* The item use handler now has a switch for multiple item types (currently gumballs, and a stub for boosters)
* All item types are now checked for expiration, not just vehicles

* implement nanocom booster helpers, save and expiry

* implement authentic taro and fm modfication

* magic number and code refactor

* make sure only close by group members are counted

* add safe taro fm handling, rate command, race and mission booster logic

* add config option to disable authentic group scaling

* rename for consistency

* make rates percentages, fix chat message, add config options

* add config option to the ini file

* add index guard for hasBoost functions

* reorder config ini options

* add bank item expiry option

* fix trade oversight

---------

Co-authored-by: CakeLancelot <CakeLancelot@users.noreply.github.com>

src/servers/CNShardServer.cpp

@@ -9,6 +9,7 @@
 #include "MobAI.hpp"
 #include "settings.hpp"
 #include "TableData.hpp" // for flush()
+#include "Items.hpp" // for checkAndRemoveExpiredItems()
 
 #include <iostream>
 #include <sstream>
@@ -23,6 +24,7 @@ CNShardServer::CNShardServer(uint16_t p) {
     pHandler = &CNShardServer::handlePacket;
     REGISTER_SHARD_TIMER(keepAliveTimer, 4000);
     REGISTER_SHARD_TIMER(periodicSaveTimer, settings::DBSAVEINTERVAL*1000);
+    REGISTER_SHARD_TIMER(periodicItemExpireTimer, 60000);
     init();
 
     if (settings::MONITORENABLED)
@@ -88,6 +90,22 @@ void CNShardServer::periodicSaveTimer(CNServer* serv, time_t currTime) {
     std::cout << "[INFO] Done." << std::endl;
 }
 
+void CNShardServer::periodicItemExpireTimer(CNServer* serv, time_t currTime) {
+    size_t playersWithExpiredItems = 0;
+    size_t itemsRemoved = 0;
+
+    for (const auto& [sock, player] : PlayerManager::players) {
+        // check and remove expired items
+        size_t removed = Items::checkAndRemoveExpiredItems(sock, player);
+        itemsRemoved += removed;
+        playersWithExpiredItems += (removed == 0 ? 0 : 1);
+    }
+
+    if (playersWithExpiredItems > 0) {
+        std::cout << "[INFO] Removed " << itemsRemoved << " expired items from " << playersWithExpiredItems << " players." << std::endl;
+    }
+}
+
 bool CNShardServer::checkExtraSockets(int i) {
     return Monitor::acceptConnection(fds[i].fd, fds[i].revents);
 }

src/servers/CNShardServer.hpp

@@ -16,6 +16,7 @@ private:
 
     static void keepAliveTimer(CNServer*, time_t);
     static void periodicSaveTimer(CNServer* serv, time_t currTime);
+    static void periodicItemExpireTimer(CNServer* serv, time_t currTime);
 
 public:
     static std::map<uint32_t, PacketHandler> ShardPackets;