Simulator: send initial state on new connection

Author: gfgit

shared/src/traintastic/simulator/simulator.cpp

@@ -698,6 +698,7 @@ void Simulator::accept()
       if(!ec)
       {
         m_connections.emplace_back(std::make_shared<SimulatorConnection>(shared_from_this(), std::move(socket)))->start();
+        sendInitialState(*m_connections.rbegin());
         accept();
       }
     });
@@ -1619,3 +1620,15 @@ Simulator::StaticData Simulator::load(const nlohmann::json& world, StateData& st
 
   return data;
 }
+
+void Simulator::sendInitialState(const std::shared_ptr<SimulatorConnection> &connection)
+{
+  // Send current sensor state
+  const size_t count = staticData.sensors.size();
+  for(size_t i = 0; i < count; ++i)
+  {
+    const auto& sensor = staticData.sensors[i];
+    auto& sensorState = m_stateData.sensors[i];
+    connection->send(SimulatorProtocol::SensorChanged(sensor.channel, sensor.address, sensorState.value));
+  }
+}

shared/src/traintastic/simulator/simulator.hpp

@@ -289,6 +289,8 @@ class Simulator : public std::enable_shared_from_this<Simulator>
   void accept();
   void doReceive();
 
+  void sendInitialState(const std::shared_ptr<SimulatorConnection>& connection);
+
   void tick();
 
   void updateTrainPositions();