feat: network manager singleton, connect network manager to network ui

src/Engine/Network/NetworkManager.cpp

@@ -1,14 +1,27 @@
 #include "Engine/Network/NetworkManager.h"
 #include "Engine/Operator/GeometryOperator.h"
+#include "Engine/Types.h"
 #include <iostream>
 #include <memory>
 
-bool enzo::nt::NetworkManager::addOperator()
+enzo::nt::OpId enzo::nt::NetworkManager::addOperator()
 {
 
     gopStore_.emplace(++maxOpId_, std::make_unique<GeometryOperator>());
-    std::cout << "adding operator\n";
+    std::cout << "adding operator " << maxOpId_ << "\n";
 
-    return true;
+    return maxOpId_;
 }
 
+
+enzo::nt::NetworkManager* enzo::nt::NetworkManager::getInstance()
+{
+    if(instancePtr_==nullptr)
+    {
+        instancePtr_ = new enzo::nt::NetworkManager();
+    }
+    return instancePtr_;
+}
+
+enzo::nt::NetworkManager* enzo::nt::NetworkManager::instancePtr_ = nullptr;
+

src/Engine/Network/NetworkManager.h

@@ -8,8 +8,16 @@ namespace enzo::nt {
 class NetworkManager
 {
 public:
-    bool addOperator();
+    OpId addOperator();
+    // delete copy constructor
+    NetworkManager(const NetworkManager& obj) = delete;
+
+    static NetworkManager* getInstance();
+
 private:
+    static NetworkManager* instancePtr_;
+    NetworkManager() {};
+
     std::unordered_map<enzo::nt::OpId, std::unique_ptr<enzo::nt::GeometryOperator>> gopStore_;
     enzo::nt::OpId maxOpId_=0;