Added some boilerplate

server/combat/barrier_manager.cpp

@@ -21,3 +21,78 @@
 */
 #include "barrier_manager.hpp"
 
+BarrierManager::BarrierManager() {
+	//EMPTY
+}
+
+BarrierManager::~BarrierManager() {
+	UnloadAll();
+}
+
+void BarrierManager::Update() {
+	//
+}
+
+int BarrierManager::Create() {
+	//implicitly create the new object
+	elementMap.emplace( std::pair<int, BarrierData>(counter, BarrierData(-1)) );
+
+	//TODO: do various things like saving to the database
+	return counter++;
+}
+
+//TODO: (1) combat load, save
+
+void BarrierManager::Unload(int uid) {
+	elementMap.erase(uid);
+}
+
+void BarrierManager::UnloadAll() {
+	elementMap.clear();
+}
+
+void BarrierManager::UnloadIf(std::function<bool(std::pair<const int, BarrierData const&>)> fn) {
+	std::map<int, BarrierData>::iterator it = elementMap.begin();
+	while (it != elementMap.end()) {
+		if (fn(*it)) {
+			it = elementMap.erase(it);
+		}
+		else {
+			++it;
+		}
+	}
+}
+
+BarrierData* BarrierManager::Find(int uid) {
+	std::map<int, BarrierData>::iterator it = elementMap.find(uid);
+
+	if (it == elementMap.end()) {
+		return nullptr;
+	}
+
+	return &it->second;
+}
+
+int BarrierManager::GetLoadedCount() {
+	return elementMap.size();
+}
+
+std::map<int, BarrierData>* BarrierManager::GetContainer() {
+	return &elementMap;
+}
+
+lua_State* BarrierManager::SetLuaState(lua_State* L) {
+	return lua = L;
+}
+
+lua_State* BarrierManager::GetLuaState() {
+	return lua;
+}
+
+sqlite3* BarrierManager::SetDatabase(sqlite3* db) {
+	return database = db;
+}
+
+sqlite3* BarrierManager::GetDatabase() {
+	return database;
+}