Merge pull request #40 from teamfisk/Networking

Networking

include/Engine/Network/Client.h

@@ -3,9 +3,12 @@
 
 #include <string>
 #include <ctime>
+#include <limits>
+#include <queue>
 
 #include <glm/common.hpp>
 #include <boost/asio.hpp>
+#include <boost/shared_array.hpp>
 
 #include "Network/Network.h"
 #include "Network/MessageType.h"
@@ -15,6 +18,8 @@
 #include "Core/EventBroker.h"
 #include "Core/ConfigFile.h"
 #include "Input/EInputCommand.h"
+#include "Core/EPlayerDamage.h"
+#include "Network/EInterpolate.h"
 
 class Client : public Network
 {
@@ -32,8 +37,6 @@ private:
     // Sending message to server logic
     int bytesRead = -1;
     char readBuf[INPUTSIZE] = { 0 };
-    int snapshotInterval = 33;
-    std::clock_t previousSnapshotMessage = std::clock();
 
     // Packet loss logic
     unsigned int m_PacketID = 0;
@@ -44,40 +47,55 @@ private:
     World* m_World;
     std::string m_PlayerName;
     int m_PlayerID = -1;
+    EntityID m_ServerEntityID = std::numeric_limits<EntityID>::max();
+    bool m_IsConnected = false;
+    // Server Client Lookup map
+    // Assumes that root node for client and server is EntityID 0.
+
+    // Don't Add items to these two maps with insert, use insertIntoServerClientMaps(EntityID, EntityID)!!!!
+    std::unordered_map<EntityID, EntityID> m_ServerIDToClientID;
+    std::unordered_map<EntityID, EntityID> m_ClientIDToServerID;
 
     // Network logic
     PlayerDefinition m_PlayerDefinitions[MAXCONNECTIONS];
     SnapshotDefinitions m_NextSnapshot;
     double m_DurationOfPingTime;
     std::clock_t m_StartPingTime;
-    // Use to check if we should send disconnect message
+    std::vector<Events::InputCommand> m_InputCommandBuffer;
-    // if game is turned of by closing window.
-    bool m_WasStarted = false;
 
     // Private member functions
     void readFromServer();
-    void sendSnapshotToServer();
     int  receive(char* data, size_t length);
     void send(Packet& packet);
     void connect();
     void disconnect();
     void ping();
-    void moveMessageHead(char*& data, size_t& length, size_t stepSize);
     void parseMessageType(Packet& packet);
-    void parseEventMessage(Packet& packet);
     void updateFields(Packet& packet, const ComponentInfo& componentInfo, const EntityID& entityID, const std::string& componentType);
     void parseConnect(Packet& packet);
+    void parsePlayerConnected(Packet& packet);
     void parsePing();
     void parseServerPing();
+    void InterpolateFields(Packet & packet, const ComponentInfo & componentInfo, const EntityID & entityID, const std::string & componentType);
     void parseSnapshot(Packet& packet);
     void identifyPacketLoss();
-    bool isConnected();
+    bool hasServerTimedOut();
     EntityID createPlayer();
+    void sendInputCommands();
+    void becomePlayer();
+    // Mapping Logic
+    // Returns if local EntityID exist in map
+    bool clientServerMapsHasEntity(EntityID clientEntityID);
+    // Returns if server EntityID exist in map
+    bool serverClientMapsHasEntity(EntityID serverEntityID);
+    void insertIntoServerClientMaps(EntityID serverEntityID, EntityID clientEntityID);
 
     // Events
     EventBroker* m_EventBroker;
     EventRelay<Client, Events::InputCommand> m_EInputCommand;
-    bool OnInputCommand(const Events::InputCommand &e);
+    bool OnInputCommand(const Events::InputCommand& e);
+    EventRelay<Client, Events::PlayerDamage> m_EPlayeDamage;
+    bool OnPlayerDamage(const Events::PlayerDamage& e);
 };
 
 #endif

include/Engine/Network/EInterpolate.h

@@ -0,0 +1,20 @@
+#ifndef Events_Interpolate_h__
+#define Events_Interpolate_h__
+
+#include <boost/shared_array.hpp>
+
+#include "Core/EventBroker.h"
+#include "Core/Entity.h"
+
+namespace Events
+{
+
+struct Interpolate : Event
+{
+    EntityID Entity;
+    boost::shared_array<char> DataArray;
+};
+
+}
+
+#endif

include/Engine/Network/MessageType.h

@@ -11,7 +11,10 @@ enum class MessageType
 	ServerPing,
 	Message,
 	Snapshot,
-	Event,
+    OnInputCommand,
+    OnPlayerDamage,
+    PlayerConnected,
+    BecomePlayer
 };
 
 #endif

include/Engine/Network/Network.h

@@ -7,6 +7,7 @@
 
 #define MAXCONNECTIONS 8
 #define INPUTSIZE 4097
+#define TIMEOUTMS 15000
 
 class Network
 {

include/Engine/Network/Packet.h

@@ -14,6 +14,7 @@ public:
     Packet(MessageType type, unsigned int& packetID);
     // Used to create packet from already existing data buffer.
     Packet(char* data, const int sizeOfPacket);
+    Packet(MessageType type);
     ~Packet();
     void Init(MessageType type, unsigned int& packetID);
 
@@ -49,7 +50,7 @@ public:
     // Pops the first element as if it was a string.
     std::string ReadString();
     char* ReadData(int SizeOfData);
-
+    void ChangePacketID(unsigned int& packetID);
     int Size() { return m_Offset; };
     char* Data() { return m_Data; };
     unsigned int DataReadSize() { return m_ReturnDataOffset; }

include/Engine/Network/PlayerDefinition.h

@@ -6,6 +6,8 @@ struct PlayerDefinition {
     int EntityID = -1;
     std::string Name = "";
     boost::asio::ip::udp::endpoint Endpoint;
+    unsigned int PacketID;
+    std::clock_t StopTime;
 };
 
 #endif

include/Engine/Network/Server.h

@@ -11,7 +11,9 @@
 #include "Network/PlayerDefinition.h"
 #include "Core/World.h"
 #include "Core/EventBroker.h"
-#include "Network/Network.h"
+#include "../Network/Network.h"
+#include "Input/EInputCommand.h"
+#include "Core/EPlayerDamage.h"
 
 class Server : public Network
 {
@@ -25,9 +27,10 @@ private:
     boost::asio::ip::udp::endpoint m_ReceiverEndpoint;
     boost::asio::io_service m_IOService;
     boost::asio::ip::udp::socket m_Socket;
-    PlayerDefinition m_PlayerDefinitions[MAXCONNECTIONS];
 
     // Sending messages to client logic
+    PlayerDefinition m_PlayerDefinitions[MAXCONNECTIONS];
+    std::vector<PlayerDefinition> m_ConnectedUsers;
     char readBuffer[INPUTSIZE] = { 0 };
     int bytesRead = 0;
     // time for previouse message
@@ -41,40 +44,38 @@ private:
 
     //Timers
     std::clock_t m_StartPingTime;
-    std::clock_t m_StopTimes[8];
 
     // Game logic
     World* m_World;
     EventBroker* m_EventBroker;
-    // vec.size() = ammount of players to create, stores playerID's
-    std::vector<unsigned int> m_PlayersToCreate;
     
     // Packet loss logic
-    unsigned int m_PacketID;
+    unsigned int m_PacketID = 0;
-    unsigned int m_PreviousPacketID;
+    unsigned int m_PreviousPacketID = 0;
-    unsigned int m_SendPacketID;
 
     // Private member functions
     int  receive(char* data, size_t length);
     void readFromClients();
     void send(Packet& packet, int playerID);
     void send(Packet& packet);
-    void moveMessageHead(char*& data, size_t& length, size_t stepSize);
-    void broadcast(std::string message);
     void broadcast(Packet& packet);
     void sendSnapshot();
     void sendPing();
     void checkForTimeOuts();
     void disconnect(int i);
     void parseMessageType(Packet& packet);
-    void parseEvent(Packet& packet);
+    void parseOnInputCommand(Packet& packet);
+    void parseOnPlayerDamage(Packet& packet);
     void parseConnect(Packet& packet);
     void parseDisconnect();
     void parseClientPing();
     void parseServerPing();
-    void parseSnapshot(Packet& packet);
     void identifyPacketLoss();
-    EntityID createPlayer();
+    void createPlayer();
+    int GetPlayerIDFromEndpoint(boost::asio::ip::udp::endpoint endpoint);
+    // Debug event
+    EventRelay<Server, Events::InputCommand> m_EInputCommand;
+    bool OnInputCommand(const Events::InputCommand& e);
 };
 
 #endif

include/Game/Game.h

@@ -19,7 +19,7 @@
 #include "Rendering/RenderSystem.h"
 #include "Core/EntityFileParser.h"
 #include "Core/Octree.h"
-
+#include "Systems/InterpolationSystem.h"
 // Network
 #include <boost/thread.hpp>
 #include "Network/Network.h"

include/Game/Systems/InterpolationSystem.h

@@ -0,0 +1,53 @@
+#ifndef Systems_InterpolationSystem_h__
+#define Systems_InterpolationSystem_h__
+
+#include <queue>
+#include <unordered_map>
+#include <boost/shared_array.hpp>
+#include <glm/common.hpp>
+#include <glm/gtc/quaternion.hpp>
+
+#include "Common.h"
+#include "Core/System.h"
+#include "Core/EventBroker.h"
+
+#include "Network/EInterpolate.h"
+
+#define SNAPSHOTINTERVAL 0.05f
+
+class InterpolationSystem : public PureSystem
+{
+    struct Transform 
+    {
+        glm::vec3 Position;
+        glm::vec3 Scale;
+        glm::quat Orientation;
+        double interpolationTime;
+    };
+public:
+    InterpolationSystem(EventBroker* eventBroker)
+        : System(eventBroker)
+        , PureSystem("Transform")
+    {
+        EVENT_SUBSCRIBE_MEMBER(m_EInterpolate, &InterpolationSystem::OnInterpolate);
+    }
+    ~InterpolationSystem() { }
+    virtual void UpdateComponent(World* world, EntityWrapper& entity, ComponentWrapper& transform, double dt) override;
+private:
+    std::unordered_map<EntityID, Transform> m_NextTransform;
+    std::unordered_map<EntityID, Transform> m_LastReceivedTransform;
+
+    //glm::vec3 vectorInterpolation(glm::vec3 prev, glm::vec3 next, double currentTime);
+    template <typename T>
+    T vectorInterpolation(T prev, T next, double currentTime)
+    {
+        T difference = next - prev;
+        T vector = (difference / SNAPSHOTINTERVAL) * static_cast<float>(currentTime);
+        return vector;
+    }
+
+    EventRelay<InterpolationSystem, Events::Interpolate> m_EInterpolate;
+    bool InterpolationSystem::OnInterpolate(const Events::Interpolate& e);
+};
+
+#endif

src/Engine/Network/Client.cpp

@@ -5,28 +5,27 @@ using namespace boost::asio::ip;
 
 Client::Client(ConfigFile* config) : m_Socket(m_IOService)
 {
+    // Asumes root node is EntityID 0
+    insertIntoServerClientMaps(0, 0);
     // Default is local host
     std::string address = config->Get<std::string>("Networking.Address", "127.0.0.1");
     int port = config->Get<int>("Networking.Port", 13);
     m_ReceiverEndpoint = udp::endpoint(boost::asio::ip::address::from_string(address), port);
     // Set up network stream
     m_PlayerName = config->Get<std::string>("Networking.Name", "Raptorcopter");
-    m_NextSnapshot.InputForward = "";
-    m_NextSnapshot.InputRight = "";
 }
 
 Client::~Client()
-{
+{ }
-}
 
 void Client::Start(World* world, EventBroker* eventBroker)
 {
-    m_WasStarted = true;
     m_EventBroker = eventBroker;
     m_World = world;
 
     // Subscribe to events
     EVENT_SUBSCRIBE_MEMBER(m_EInputCommand, &Client::OnInputCommand);
+    EVENT_SUBSCRIBE_MEMBER(m_EPlayeDamage, &Client::OnPlayerDamage);
 
     m_Socket.connect(m_ReceiverEndpoint);
     LOG_INFO("I am client. BIP BOP");
@@ -34,7 +33,11 @@ void Client::Start(World* world, EventBroker* eventBroker)
 
 void Client::Update()
 {
+    m_EventBroker->Process<Client>();
     readFromServer();
+    if (m_IsConnected) {
+        hasServerTimedOut();
+    }
 }
 
 void Client::readFromServer()
@@ -46,58 +49,7 @@ void Client::readFromServer()
             parseMessageType(packet);
         }
     }
-    std::clock_t currentTime = std::clock();
+    sendInputCommands();
-    if (snapshotInterval < (1000 * (currentTime - previousSnapshotMessage) / (double)CLOCKS_PER_SEC)) {
-        if (isConnected()) {
-            //sendSnapshotToServer();
-        }
-        previousSnapshotMessage = currentTime;
-    }
-}
-
-void Client::sendSnapshotToServer()
-{
-    // Reset previous key state in snapshot.
-    m_NextSnapshot.InputForward = "";
-    m_NextSnapshot.InputRight = "";
-
-    auto player = m_World->GetComponent(m_PlayerDefinitions[m_PlayerID].EntityID, "Player");
-
-    // See if any movement keys are down
-    // We dont care if it's overwritten by later
-    // if statement. Watcha gonna do, right!
-    if (player["Forward"]) {
-        m_NextSnapshot.InputForward = "+Forward";
-    }
-    if (player["Left"]) {
-        m_NextSnapshot.InputRight = "-Right";
-    }
-    if (player["Back"]) {
-        m_NextSnapshot.InputForward = "-Forward";
-    }
-    if (player["Right"]) {
-        m_NextSnapshot.InputRight = "+Right";
-    }
-
-    if (m_NextSnapshot.InputForward != "") {
-        Packet packet(MessageType::Event, m_SendPacketID);
-        packet.WriteString(m_NextSnapshot.InputForward);
-        send(packet);
-    } else {
-        Packet packet(MessageType::Event, m_SendPacketID);
-        packet.WriteString("0Forward");
-        send(packet);
-    }
-
-    if (m_NextSnapshot.InputRight != "") {
-        Packet packet(MessageType::Event, m_SendPacketID);
-        packet.WriteString(m_NextSnapshot.InputRight);
-        send(packet);
-    } else {
-        Packet packet(MessageType::Event, m_SendPacketID);
-        packet.WriteString("0Right");
-        send(packet);
-    }
 }
 
 void Client::parseMessageType(Packet& packet)
@@ -108,9 +60,7 @@ void Client::parseMessageType(Packet& packet)
     // Read packet ID 
     m_PreviousPacketID = m_PacketID;    // Set previous packet id
     m_PacketID = packet.ReadPrimitive<int>(); //Read new packet id
-    if (m_PacketID <= m_PreviousPacketID)
+    identifyPacketLoss();
-        return;
-    //IdentifyPacketLoss();
 
     switch (static_cast<MessageType>(messageType)) {
     case MessageType::Connect:
@@ -129,9 +79,8 @@ void Client::parseMessageType(Packet& packet)
         break;
     case MessageType::Disconnect:
         break;
-    case MessageType::Event:
+    case MessageType::PlayerConnected:
-        parseEventMessage(packet);
+        parsePlayerConnected(packet);
-        break;
     default:
         break;
     }
@@ -139,34 +88,52 @@ void Client::parseMessageType(Packet& packet)
 
 void Client::parseConnect(Packet& packet)
 {
-    m_PlayerID = packet.ReadPrimitive<int>();
+    // Map ServerEntityID and your PlayerID
-    LOG_INFO("%i: I am player: %i", m_PacketID, m_PlayerID);
+    LOG_INFO("I be connected PogChamp");
+}
+
+void Client::parsePlayerConnected(Packet & packet)
+{
+    // Map ServerEntityID and other player's PlayerID
+    LOG_INFO("A Player connected");
 }
 
 void Client::parsePing()
 {
-    m_DurationOfPingTime = 1000 * (std::clock() - m_StartPingTime) / static_cast<double>(CLOCKS_PER_SEC);
+
-    LOG_INFO("%i: response time with ctime(ms): %f", m_PacketID, m_DurationOfPingTime);
 }
 
 void Client::parseServerPing()
 {
+    // Might miss connect message so set it here instead.
+    m_IsConnected = true;
+    // Time since last ping was received
+    m_DurationOfPingTime = 1000 * (std::clock() - m_StartPingTime) / static_cast<double>(CLOCKS_PER_SEC);
+    LOG_INFO("%i: response time with ctime(ms): %f", m_PacketID, m_DurationOfPingTime);
+    m_StartPingTime = std::clock();
+
     Packet packet(MessageType::ServerPing, m_SendPacketID);
     packet.WriteString("Ping recieved");
     send(packet);
 }
 
-void Client::parseEventMessage(Packet& packet)
+// Fields with strings will not work right now
+void Client::InterpolateFields(Packet& packet, const ComponentInfo& componentInfo, const EntityID& entityID, const std::string& componentType)
 {
-    int Id = -1;
+    int sizeOfFields = 0;
-    std::string command = packet.ReadString();
+    for (auto field : componentInfo.FieldsInOrder) {
-    if (command.find("+Player") != std::string::npos) {
+        ComponentInfo::Field_t fieldInfo = componentInfo.Fields.at(field);
-        Id = packet.ReadPrimitive<int>();
+        sizeOfFields += fieldInfo.Stride;
-        // Sett Player name
-        m_PlayerDefinitions[Id].Name = command.erase(0, 7);
-    } else {
-        LOG_INFO("%i: Event message: %s", m_PacketID, command.c_str());
     }
+    // Is the size correct?
+    boost::shared_array<char> eventData(new char[componentInfo.Stride]);
+    memcpy(eventData.get(), packet.ReadData(componentInfo.Stride), componentInfo.Stride);
+    //Send event to interpolat system
+    Events::Interpolate e;
+    e.Entity = entityID;
+    e.DataArray = eventData;
+    m_EventBroker->Publish(e);
+
 }
 
 void Client::updateFields(Packet& packet, const ComponentInfo& componentInfo, const EntityID& entityID, const std::string& componentType)
@@ -182,17 +149,27 @@ void Client::updateFields(Packet& packet, const ComponentInfo& componentInfo, co
     }
 }
 
-// Field parse
 void Client::parseSnapshot(Packet& packet)
 {
     std::string componentType = packet.ReadString();
     while (packet.DataReadSize() < packet.Size()) {
-        EntityID entityID = packet.ReadPrimitive<EntityID>();
+        // Components EntityID
+        EntityID receivedEntityID = packet.ReadPrimitive<EntityID>();
+        // Parents EntityID 
+        EntityID receivedParentEntityID = packet.ReadPrimitive<EntityID>();
         ComponentInfo componentInfo = m_World->GetComponents(componentType)->ComponentInfo();
-        if (m_World->ValidEntity(entityID)) {
+        // Check if the received EntityID is mapped to one of our local EntityIDs
+        if (serverClientMapsHasEntity(receivedEntityID)) {
+            // Get the local EntityID
+            EntityID entityID = m_ServerIDToClientID.at(receivedEntityID);
+            // Check if the component exists
             if (m_World->HasComponent(entityID, componentType)) {
                 // If the entity and the component exists update it
+                if (componentType == "Transform") {
+                    InterpolateFields(packet, componentInfo, entityID, componentType);
+                } else {
                     updateFields(packet, componentInfo, entityID, componentType);
+                }
                 // if entity exists but not the component
             } else {
                 // Create component
@@ -202,11 +179,12 @@ void Client::parseSnapshot(Packet& packet)
             }
             // If the entity dosent exist nor the component
         } else {
-            //Create Entity
+            // Create Entity
             // If entity dosen't exist
             EntityID newEntityID = m_World->CreateEntity();
+            insertIntoServerClientMaps(receivedEntityID, newEntityID);
             // Check if EntityIDs are out of sync
-            if (newEntityID != entityID) {
+            if (newEntityID != receivedEntityID) {
                 LOG_INFO("Client::parseSnapshot(Packet& packet): Newly created EntityID is not the \
                             same as the one sent by server (EntityIDs are out of sync)");
             }
@@ -215,6 +193,21 @@ void Client::parseSnapshot(Packet& packet)
             // Copy data to newly created component
             updateFields(packet, componentInfo, newEntityID, componentType);
         }
+
+        // Parent Logic
+        // Don't need to check if receivedEntityID is mapped. (It should have been set) 
+        if (receivedParentEntityID != std::numeric_limits<EntityID>::max()) {
+            if (serverClientMapsHasEntity(receivedParentEntityID)) {
+                m_World->SetParent(m_ServerIDToClientID.at(receivedEntityID), m_ServerIDToClientID.at(receivedParentEntityID));
+                // If Parent dosen't exist create one and map receivedParentEntityID to it.
+            } else {
+                // Create the new parent and add it to map
+                EntityID newParentEntityID = m_World->CreateEntity();
+                insertIntoServerClientMaps(receivedParentEntityID, newParentEntityID);
+                // Set the newly created Entity as parent.
+                m_World->SetParent(m_ServerIDToClientID.at(receivedEntityID), newParentEntityID);
+            }
+        }
     }
 }
 
@@ -228,9 +221,8 @@ int Client::receive(char* data, size_t length)
         0, error);
 
     if (error) {
-        LOG_ERROR("receive: %s", error.message().c_str());
+        //LOG_ERROR("receive: %s", error.message().c_str());
     }
-
     return bytesReceived;
 }
 
@@ -252,77 +244,74 @@ void Client::connect()
 
 void Client::disconnect()
 {
-    Packet packet(MessageType::Connect, m_SendPacketID);
+    m_PreviousPacketID = 0;
-    packet.WriteString("+Disconnect");
+    m_PacketID = 0;
+    Packet packet(MessageType::Disconnect, m_SendPacketID);
     send(packet);
 }
 
 void Client::ping()
 {
-    Packet packet(MessageType::Connect, m_SendPacketID);
+    //Packet packet(MessageType::Connect, m_SendPacketID);
-    packet.WriteString("Ping");
+    //packet.WriteString("Ping");
-    m_StartPingTime = std::clock();
+    //m_StartPingTime = std::clock();
-    send(packet);
+    //send(packet);
-}
-
-void Client::moveMessageHead(char*& data, size_t& length, size_t stepSize)
-{
-    data += stepSize;
-    length -= stepSize;
 }
 
 bool Client::OnInputCommand(const Events::InputCommand & e)
 {
-    if (isConnected()) {
-        ComponentWrapper& player = m_World->GetComponent(m_PlayerDefinitions[m_PlayerID].EntityID, "Player");
-        if (e.Command == "Forward") {
-            if (e.Value > 0) {
-                (bool&)player["Forward"] = true;
-                (bool&)player["Back"] = false;
-            } else if (e.Value < 0) {
-                (bool&)player["Back"] = true;
-                (bool&)player["Forward"] = false;
-            } else {
-                (bool&)player["Forward"] = false;
-                (bool&)player["Back"] = false;
-            }
-        }
-        if (e.Command == "Right") {
-            if (e.Value > 0) {
-                (bool&)player["Right"] = true;
-                (bool&)player["Left"] = false;
-            } else if (e.Value < 0) {
-                (bool&)player["Left"] = true;
-                (bool&)player["Right"] = false;
-            } else {
-                (bool&)player["Left"] = false;
-                (bool&)player["Right"] = false;
-            }
-        }
-    }
     if (e.Command == "ConnectToServer") { // Connect for now
+        if (e.Value > 0) {
             connect();
         }
+        //LOG_DEBUG("Client::OnInputCommand: Command is %s. Value is %f. PlayerID is %i.", e.Command.c_str(), e.Value, e.PlayerID);
+        return true;
+    } else if (e.Command == "DisconnectFromServer") {
+        if (e.Value > 0) {
+            disconnect();
+        }
+        return true;
+    } else if (e.Command == "SwitchToPlayer") {
+        if (e.Value > 0) {
+            becomePlayer();
+        }
+    } else {
+        m_InputCommandBuffer.push_back(e);
+        //LOG_DEBUG("Client::OnInputCommand: Command is %s. Value is %f. PlayerID is %i.", e.Command.c_str(), e.Value, e.PlayerID);
+        return true;
+    }
     return false;
 }
 
+bool Client::OnPlayerDamage(const Events::PlayerDamage & e)
+{
+    Packet packet(MessageType::OnInputCommand, m_SendPacketID);
+    packet.WritePrimitive(e.DamageAmount);
+    packet.WritePrimitive(e.PlayerDamagedID);
+    packet.WriteString(e.TypeOfDamage);
+    send(packet);
+    return false;
+}
 
 void Client::identifyPacketLoss()
 {
     // if no packets lost, difference should be equal to 1
     int difference = m_PacketID - m_PreviousPacketID;
     if (difference != 1) {
-        LOG_INFO("%i Packet(s) were lost...", difference);
+        LOG_INFO("%i Packet(s) were lost...", difference - 1);
     }
 }
 
-bool Client::isConnected()
+bool Client::hasServerTimedOut()
 {
-    if (m_PlayerID != -1) {
+    // Time in ms
-        if (m_PlayerDefinitions[m_PlayerID].EntityID != -1) {
+    float timeSincePing = 1000 * (std::clock() - m_StartPingTime) / static_cast<double>(CLOCKS_PER_SEC);
+    if (timeSincePing > TIMEOUTMS) {
+        // Clear everything and go to menu.
+        LOG_INFO("Server has timed out, returning to menu, Beep Boop.");
+        m_IsConnected = false;
         return true;
     }
-    }
     return false;
 }
 
@@ -335,3 +324,39 @@ EntityID Client::createPlayer()
     ComponentWrapper player = m_World->AttachComponent(entityID, "Player");
     return entityID;
 }
+
+void Client::sendInputCommands()
+{
+    if (m_InputCommandBuffer.size() > 0) {
+        Packet packet(MessageType::OnInputCommand, m_SendPacketID);
+        for (int i = 0; i < m_InputCommandBuffer.size(); i++) {
+            packet.WriteString(m_InputCommandBuffer[i].Command);
+            packet.WritePrimitive(m_InputCommandBuffer[i].Value);
+        }
+        send(packet);
+        m_InputCommandBuffer.clear();
+    }
+}
+
+void Client::becomePlayer()
+{
+    Packet packet = Packet(MessageType::BecomePlayer, m_SendPacketID);
+    send(packet);
+}
+
+bool Client::clientServerMapsHasEntity(EntityID clientEntityID)
+{
+    return m_ClientIDToServerID.find(clientEntityID) != m_ClientIDToServerID.end();
+}
+
+bool Client::serverClientMapsHasEntity(EntityID serverEntityID)
+{
+    return m_ServerIDToClientID.find(serverEntityID) != m_ServerIDToClientID.end();
+}
+
+void Client::insertIntoServerClientMaps(EntityID serverEntityID, EntityID clientEntityID)
+{
+    m_ServerIDToClientID.insert(std::make_pair(serverEntityID, clientEntityID));
+    m_ClientIDToServerID.insert(std::make_pair(clientEntityID, serverEntityID));
+
+}

src/Engine/Network/Packet.cpp

@@ -17,6 +17,13 @@ Packet::Packet(char* data, const int sizeOfPacket)
     m_Offset = sizeOfPacket;
 }
 
+Packet::Packet(MessageType type)
+{
+    m_Data = new char[m_MaxPacketSize];
+    unsigned int dummy = 0;
+    Init(type, dummy);
+}
+
 Packet::~Packet()
 {
     delete[] m_Data;
@@ -30,7 +37,6 @@ void Packet::Init(MessageType type, unsigned int & packetID)
     // Add message type
     int messageType = static_cast<int>(type);
     Packet::WritePrimitive<int>(messageType);
-    packetID = packetID % 1000; // Packet id modulos
     Packet::WritePrimitive<int>(packetID);
     packetID++;
 }
@@ -40,7 +46,7 @@ void Packet::WriteString(const std::string& str)
     // Message, add one extra byte for null terminator
     int sizeOfString = str.size() + 1;
     if (m_Offset + sizeOfString > m_MaxPacketSize) {
-        LOG_WARNING("Package::WriteString(): Data size in packet exceeded maximum package size. New size is %i bytes\n", m_MaxPacketSize*2);
+        //LOG_WARNING("Package::WriteString(): Data size in packet exceeded maximum package size. New size is %i bytes\n", m_MaxPacketSize*2);
         resizeData();
     }
     memcpy(m_Data + m_Offset, str.data(), sizeOfString * sizeof(char));
@@ -50,7 +56,7 @@ void Packet::WriteString(const std::string& str)
 void Packet::WriteData(char * data, int sizeOfData)
 {
     if (m_Offset + sizeOfData > m_MaxPacketSize) {
-        LOG_WARNING("Packet::WriteData(): Data size in packet exceeded maximum packet size. New size is %i bytes\n", m_MaxPacketSize*2);
+        //LOG_WARNING("Packet::WriteData(): Data size in packet exceeded maximum packet size. New size is %i bytes\n", m_MaxPacketSize*2);
         resizeData();
     }
     memcpy(m_Data + m_Offset, data, sizeOfData);
@@ -61,7 +67,7 @@ std::string Packet::ReadString()
 {
     std::string returnValue(m_Data + m_ReturnDataOffset);
     if (m_Offset < m_ReturnDataOffset + returnValue.size()) {
-        LOG_WARNING("packet ReadString(): Oh no! You are trying to remove things outside my memory kingdom");
+        //LOG_WARNING("packet ReadString(): Oh no! You are trying to remove things outside my memory kingdom");
         return "PopFrontString Failed";
     }
     // +1 for null terminator.
@@ -72,7 +78,7 @@ std::string Packet::ReadString()
 char * Packet::ReadData(int SizeOfData)
 {
     if (m_Offset < m_ReturnDataOffset + SizeOfData) {
-        LOG_WARNING("packet ReadData(): Oh no! You are trying to remove things outside my memory kingdom");
+        //LOG_WARNING("packet ReadData(): Oh no! You are trying to remove things outside my memory kingdom");
         return nullptr;
     }
     unsigned int oldReturnDataOffset = m_ReturnDataOffset;
@@ -80,6 +86,13 @@ char * Packet::ReadData(int SizeOfData)
     return (m_Data + oldReturnDataOffset);
 }
 
+void Packet::ChangePacketID(unsigned int & packetID)
+{
+    packetID = packetID + 1;
+    // Overwrite old PacketID
+    memcpy(m_Data + sizeof(int), &packetID, sizeof(int));
+}
+
 void Packet::resizeData()
 {
 

src/Engine/Network/Server.cpp

@@ -8,13 +8,14 @@ Server::~Server()
 
 }
 
-
 void Server::Start(World* world, EventBroker* eventBroker)
 {
     m_World = world;
     m_EventBroker = eventBroker;
+    // Subscribe to events
+    EVENT_SUBSCRIBE_MEMBER(m_EInputCommand, &Server::OnInputCommand);
     for (size_t i = 0; i < MAXCONNECTIONS; i++) {
-        m_StopTimes[i] = std::clock();
+        m_PlayerDefinitions[i].StopTime = std::clock();
     }
     LOG_INFO("I am Server. BIP BOP\n");
 }
@@ -22,8 +23,10 @@ void Server::Start(World* world, EventBroker* eventBroker)
 void Server::Update()
 {
     readFromClients();
+    m_EventBroker->Process<Server>();
 }
 
+
 void Server::readFromClients()
 {
     while (m_Socket.available()) {
@@ -50,7 +53,7 @@ void Server::readFromClients()
 
     // Time out logic
     if (checkTimeOutInterval < (1000 * (currentTime - timOutTimer) / (double)CLOCKS_PER_SEC)) {
-        //checkForTimeOuts();
+        checkForTimeOuts();
         timOutTimer = currentTime;
     }
 }
@@ -62,7 +65,7 @@ void Server::parseMessageType(Packet& packet)
     // Read packet ID 
     m_PreviousPacketID = m_PacketID;    // Set previous packet id
     m_PacketID = packet.ReadPrimitive<int>(); //Read new packet id
-    //IdentifyPacketLoss();
+    //identifyPacketLoss();
     switch (static_cast<MessageType>(messageType)) {
     case MessageType::Connect:
         parseConnect(packet);
@@ -76,13 +79,18 @@ void Server::parseMessageType(Packet& packet)
     case MessageType::Message:
         break;
     case MessageType::Snapshot:
-        parseSnapshot(packet);
         break;
     case MessageType::Disconnect:
         parseDisconnect();
         break;
-    case MessageType::Event:
+    case MessageType::OnInputCommand:
-        parseEvent(packet);
+        parseOnInputCommand(packet);
+        break;
+    case MessageType::OnPlayerDamage:
+        parseOnPlayerDamage(packet);
+        break;
+    case MessageType::BecomePlayer:
+        createPlayer();
         break;
     default:
         break;
@@ -98,11 +106,11 @@ int Server::receive(char * data, size_t length)
     return length;
 }
 
-void Server::send(Packet& packet, int playerID)
+void Server::send(Packet& packet, int userID)
 {
     int bytesSent = m_Socket.send_to(
         boost::asio::buffer(packet.Data(), packet.Size()),
-        m_PlayerDefinitions[playerID].Endpoint,
+        m_ConnectedUsers[userID].Endpoint,
         0);
 }
 
@@ -116,27 +124,11 @@ void Server::send(Packet & packet)
         0);
 }
 
-void Server::moveMessageHead(char *& data, size_t & length, size_t stepSize)
-{
-    data += stepSize;
-    length -= stepSize;
-}
-
-void Server::broadcast(std::string message)
-{
-    Packet packet(MessageType::Event, m_SendPacketID);
-    packet.WriteString(message);
-    for (int i = 0; i < MAXCONNECTIONS; i++) {
-        if (m_PlayerDefinitions[i].Endpoint.address() != boost::asio::ip::address()) {
-            send(packet, i);
-        }
-    }
-}
-
 void Server::broadcast(Packet& packet)
 {
-    for (int i = 0; i < MAXCONNECTIONS; ++i) {
+    for (int i = 0; i < m_ConnectedUsers.size(); i++) {
-        if (m_PlayerDefinitions[i].Endpoint.address() != boost::asio::ip::address()) {
+        if (m_ConnectedUsers[i].Endpoint.address() != boost::asio::ip::address()) {
+            packet.ChangePacketID(m_ConnectedUsers[i].PacketID);
             send(packet, i);
         }
     }
@@ -148,14 +140,16 @@ void Server::sendSnapshot()
     // Should time this
     std::unordered_map<std::string, ComponentPool*> worldComponentPools = m_World->GetComponentPools();
     for (auto& it : worldComponentPools) {
-        Packet packet(MessageType::Snapshot, m_SendPacketID);
+        Packet packet(MessageType::Snapshot);
-        std::string componentType = it.first;
         ComponentPool* componentPool = it.second;
         ComponentInfo componentInfo = componentPool->ComponentInfo();
+        // Component Type
         packet.WriteString(componentInfo.Name);
-
         for (auto& componentWrapper : *componentPool) {
+            // Components EntityID
             packet.WritePrimitive(componentWrapper.EntityID);
+            // Parents EntityID
+            packet.WritePrimitive(m_World->GetParent(componentWrapper.EntityID));
             for (auto& componentField : componentWrapper.Info.FieldsInOrder) {
                 ComponentInfo::Field_t fieldInfo = componentInfo.Fields.at(componentField);
                 if (fieldInfo.Type == "string") {
@@ -173,14 +167,14 @@ void Server::sendSnapshot()
 void Server::sendPing()
 {
     // Prints connected players ping
-    for (size_t i = 0; i < MAXCONNECTIONS; i++) {
+    for (int i = 0; i < m_ConnectedUsers.size(); i++) {
-        if (m_PlayerDefinitions[i].Endpoint.address() != boost::asio::ip::address()) {
+        if (m_ConnectedUsers[i].Endpoint.address() != boost::asio::ip::address()) {
-            int ping = 1000 * (m_StopTimes[i] - m_StartPingTime) / static_cast<double>(CLOCKS_PER_SEC);
+            int ping = 1000 * (m_ConnectedUsers[i].StopTime - m_StartPingTime) / static_cast<double>(CLOCKS_PER_SEC);
-            LOG_INFO("Last packetID received %i: Player %i's ping: %i", m_PacketID, i, ping);
+            LOG_INFO("Last packetID received %i: User %i's ping: %i", m_ConnectedUsers[i].PacketID, i, std::abs(ping));
         }
     }
     // Create ping message
-    Packet packet(MessageType::ServerPing, m_SendPacketID);
+    Packet packet(MessageType::ServerPing);
     packet.WriteString("Ping from server");
     // Time message
     m_StartPingTime = std::clock();
@@ -190,16 +184,15 @@ void Server::sendPing()
 
 void Server::checkForTimeOuts()
 {
-    int timeOutTimeMs = 5000;
     int startPing = 1000 * m_StartPingTime
         / static_cast<double>(CLOCKS_PER_SEC);
 
-    for (size_t i = 0; i < MAXCONNECTIONS; i++) {
+    for (int i = 0; i < m_ConnectedUsers.size(); i++) {
-        if (m_PlayerDefinitions[i].Endpoint.address() != boost::asio::ip::address()) {
+        if (m_ConnectedUsers[i].Endpoint.address() != boost::asio::ip::address()) {
-            int stopPing = 1000 * m_StopTimes[i]
+            int stopPing = 1000 * m_ConnectedUsers[i].StopTime /
-                / static_cast<double>(CLOCKS_PER_SEC);
+                static_cast<double>(CLOCKS_PER_SEC);
-            if (startPing > stopPing + timeOutTimeMs) {
+            if (startPing > stopPing + TIMEOUTMS) {
-                LOG_INFO("Player %i timed out!", i);
+                LOG_INFO("User %i timed out!", i);
                 disconnect(i);
             }
         }
@@ -208,92 +201,89 @@ void Server::checkForTimeOuts()
 
 void Server::disconnect(int i)
 {
-    broadcast("A player disconnected");
+    //broadcast("A player disconnected");
-    LOG_INFO("Player %i disconnected/timed out", i);
+    LOG_INFO("User %s disconnected/timed out", m_PlayerDefinitions[i].Name.c_str());
-
+    // Remove enteties and stuff (When we can remove entity, remove it and tell clients to remove the copy they have)
-    // Remove enteties and stuff
     m_PlayerDefinitions[i].Endpoint = boost::asio::ip::udp::endpoint();
     m_PlayerDefinitions[i].EntityID = -1;
     m_PlayerDefinitions[i].Name = "";
+    m_PlayerDefinitions[i].PacketID = 0;
+    m_ConnectedUsers.erase(m_ConnectedUsers.begin() + i);
 }
 
-void Server::parseEvent(Packet& packet)
+void Server::parseOnInputCommand(Packet& packet)
 {
-    size_t i;
+    int playerID = -1;
-    for (i = 0; i < MAXCONNECTIONS; i++) {
+    // Check which player it was who sent the message
-        if (m_PlayerDefinitions[i].Endpoint.address() == m_ReceiverEndpoint.address()) {
+    for (int i = 0; i < MAXCONNECTIONS; i++) {
+        // if the player is connected set playerID to the correct PlayerID
+        if (m_PlayerDefinitions[i].Endpoint.address() == m_ReceiverEndpoint.address()
+            && m_PlayerDefinitions[i].Endpoint.port() == m_ReceiverEndpoint.port()) {
+            playerID = i;
             break;
         }
     }
-    // If no player matches the address return.
+    if (playerID != -1) {
-    if (i >= 8)
+        while (packet.DataReadSize() < packet.Size()) {
-        return;
+            Events::InputCommand e;
+            e.Command = packet.ReadString();
+            e.PlayerID = playerID; // Set correct player id
+            e.Value = packet.ReadPrimitive<float>();
+            m_EventBroker->Publish(e);
+            //LOG_INFO("Server::parseOnInputCommand: Command is %s. Value is %f. PlayerID is %i.", e.Command.c_str(), e.Value, e.PlayerID);
+        }
+    }
+}
 
-    unsigned int entityId = m_PlayerDefinitions[i].EntityID;
+void Server::parseOnPlayerDamage(Packet & packet)
-    std::string eventString = packet.ReadString();
+{
-    if ("+Forward" == eventString) {
+    Events::PlayerDamage e;
-        m_World->GetComponent(entityId, "Player")["Forward"] = true;
+    e.DamageAmount = packet.ReadPrimitive<double>();
-        m_World->GetComponent(entityId, "Player")["Back"] = false;
+    e.PlayerDamagedID = packet.ReadPrimitive<EntityID>();
-    } else if ("-Forward" == eventString) {
+    e.TypeOfDamage = packet.ReadString();
-        m_World->GetComponent(entityId, "Player")["Forward"] = false;
+    m_EventBroker->Publish(e);
-        m_World->GetComponent(entityId, "Player")["Back"] = true;
+    //LOG_DEBUG("Server::parseOnPlayerDamage: Command is %s. Value is %f. PlayerID is %i.", e.DamageAmount, e.PlayerDamagedID, e.TypeOfDamage.c_str());
-    } else if ("0Forward" == eventString) {
-        m_World->GetComponent(entityId, "Player")["Forward"] = false;
-        m_World->GetComponent(entityId, "Player")["Back"] = false;
-    }
-    if ("+Right" == eventString) {
-        m_World->GetComponent(entityId, "Player")["Left"] = false;
-        m_World->GetComponent(entityId, "Player")["Right"] = true;
-    } else if ("-Right" == eventString) {
-        m_World->GetComponent(entityId, "Player")["Right"] = false;
-        m_World->GetComponent(entityId, "Player")["Left"] = true;
-    } else if ("0Right" == eventString) {
-        m_World->GetComponent(entityId, "Player")["Right"] = false;
-        m_World->GetComponent(entityId, "Player")["Left"] = false;
-    }
 }
 
 void Server::parseConnect(Packet& packet)
 {
     LOG_INFO("Parsing connections");
     // Check if player is already connected
-    for (int i = 0; i < MAXCONNECTIONS; i++) {
+    if (GetPlayerIDFromEndpoint(m_ReceiverEndpoint) != -1) {
-        if (m_PlayerDefinitions[i].Endpoint.address() == m_ReceiverEndpoint.address()) {
+        return;
+    }
+    for (int i = 0; i < m_ConnectedUsers.size(); i++) {
+        if (m_ConnectedUsers[i].Endpoint.address() == m_ReceiverEndpoint.address() &&
+            m_ConnectedUsers[i].Endpoint.port() == m_ReceiverEndpoint.port()) {
+            // Already connected 
             return;
         }
     }
+    // Create a new player
+    PlayerDefinition pd;
+    pd.EntityID = 0; // Overlook this
+    pd.Endpoint = m_ReceiverEndpoint;
+    pd.Name = packet.ReadString();
+    pd.PacketID = 0;
+    pd.StopTime = std::clock();
+    m_ConnectedUsers.push_back(pd);
+    LOG_INFO("Spectator \"%s\" connected on IP: %s", pd.Name.c_str(), pd.Endpoint.address().to_string().c_str());
 
-    for (int i = 0; i < MAXCONNECTIONS; i++) {
+    // Send a message to the player that connected
-        if (m_PlayerDefinitions[i].Endpoint.address() == boost::asio::ip::address()) {
+    Packet connnectPacket(MessageType::Connect, m_ConnectedUsers[m_ConnectedUsers.size() - 1].PacketID);
-            // Create new player
+    send(connnectPacket);
-            m_PlayerDefinitions[i].EntityID = createPlayer();
-            m_PlayerDefinitions[i].Endpoint = m_ReceiverEndpoint;
-            m_PlayerDefinitions[i].Name = packet.ReadString();
-
-            m_StopTimes[i] = std::clock();
-
-            LOG_INFO("Player \"%s\" connected on IP: %s", m_PlayerDefinitions[i].Name.c_str(), m_PlayerDefinitions[i].Endpoint.address().to_string().c_str());
-
-            Packet packet(MessageType::Connect, m_SendPacketID);
-            packet.WritePrimitive<int>(i); // Player ID
-
-            send(packet, i);
 
     // Send notification that a player has connected
-            std::string str = m_PacketID + "Player " + m_PlayerDefinitions[i].Name + " connected on: "
+    Packet notificationPacket(MessageType::PlayerConnected);
-                + m_PlayerDefinitions[i].Endpoint.address().to_string();
+    broadcast(notificationPacket);
-            broadcast(str);
-            break;
-        }
-    }
 }
 
 void Server::parseDisconnect()
 {
     LOG_INFO("%i: Parsing disconnect", m_PacketID);
 
-    for (int i = 0; i < MAXCONNECTIONS; i++) {
+    for (int i = 0; i < m_ConnectedUsers.size(); i++) {
-        if (m_PlayerDefinitions[i].Endpoint.address() == m_ReceiverEndpoint.address()) {
+        if (m_ConnectedUsers[i].Endpoint.address() == m_ReceiverEndpoint.address()) {
             disconnect(i);
             break;
         }
@@ -303,37 +293,26 @@ void Server::parseDisconnect()
 void Server::parseClientPing()
 {
     LOG_INFO("%i: Parsing ping", m_PacketID);
+    int playerID = GetPlayerIDFromEndpoint(m_ReceiverEndpoint);
+    if (playerID == -1) {
+        return;
+    }
     // Return ping
-    Packet packet(MessageType::ClientPing, m_SendPacketID);
+    Packet packet(MessageType::ClientPing, m_PlayerDefinitions[playerID].PacketID);
     packet.WriteString("Ping received");
-    send(packet); // This dosen't work for multiple users
+    send(packet);
 }
 
 void Server::parseServerPing()
 {
-    for (int i = 0; i < MAXCONNECTIONS; i++) {
+    for (int i = 0; i < m_ConnectedUsers.size(); i++) {
-        if (m_PlayerDefinitions[i].Endpoint.address() == m_ReceiverEndpoint.address()) {
+        if (m_ConnectedUsers[i].Endpoint.address() == m_ReceiverEndpoint.address()) {
-            m_StopTimes[i] = std::clock();
+            m_ConnectedUsers[i].StopTime = std::clock();
             break;
         }
     }
 }
 
-// NOT USED
-void Server::parseSnapshot(Packet& packet)
-{
-    // Does no logic. Returns snapshot if client request one
-    // The snapshot is not a real snapshot tho...
-    for (int i = 0; i < MAXCONNECTIONS; i++) {
-        if (m_PlayerDefinitions[i].Endpoint.address() != boost::asio::ip::address()) {
-            m_Socket.send_to(
-                boost::asio::buffer("I'm sending a snapshot to you guys!"),
-                m_PlayerDefinitions[i].Endpoint,
-                0);
-        }
-    }
-}
-
 void Server::identifyPacketLoss()
 {
     // if no packets lost, difference should be equal to 1
@@ -343,8 +322,28 @@ void Server::identifyPacketLoss()
     }
 }
 
-EntityID Server::createPlayer()
+void Server::createPlayer()
 {
+    if (GetPlayerIDFromEndpoint(m_ReceiverEndpoint) != -1) {
+        // Already connected as player
+        LOG_WARNING("Already connected!");
+        return;
+    }
+    int userIndex;
+    for (userIndex = 0; userIndex < m_ConnectedUsers.size(); userIndex++) {
+        if (m_ConnectedUsers[userIndex].Endpoint.address() == m_ReceiverEndpoint.address() &&
+            m_ConnectedUsers[userIndex].Endpoint.port() == m_ReceiverEndpoint.port()) {
+            // Found user
+            break;
+        }
+    }
+    if (userIndex == m_ConnectedUsers.size()) {
+        LOG_WARNING("Not a recognized user!");
+        return;
+    }
+    for (int playerIndex = 0; playerIndex < MAXCONNECTIONS; playerIndex++) {
+        if (m_PlayerDefinitions[playerIndex].Endpoint.address() == boost::asio::ip::address()) {
+            m_PlayerDefinitions[playerIndex] = m_ConnectedUsers[userIndex];
             EntityID entityID = m_World->CreateEntity();
             ComponentWrapper transform = m_World->AttachComponent(entityID, "Transform");
             transform["Position"] = glm::vec3(-1.5f, 0.f, 0.f);
@@ -352,5 +351,27 @@ EntityID Server::createPlayer()
             model["Resource"] = "Models/Core/UnitSphere.obj";
             model["Color"] = glm::vec4(rand()%255 / 255.f, rand()%255 / 255.f, rand() %255 / 255.f, 1.f);
             ComponentWrapper player = m_World->AttachComponent(entityID, "Player");
-    return entityID;
+            m_PlayerDefinitions[playerIndex].EntityID = entityID;
+            return;
+        }
+    }
+    LOG_WARNING("Server is full!");
+ 
+}
+
+int Server::GetPlayerIDFromEndpoint(boost::asio::ip::udp::endpoint endpoint)
+{
+    for (int i = 0; i < MAXCONNECTIONS; i++) {
+        if (m_PlayerDefinitions[i].Endpoint.address() == endpoint.address() &&
+            m_PlayerDefinitions[i].Endpoint.port() == endpoint.port()) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+bool Server::OnInputCommand(const Events::InputCommand & e)
+{
+    //LOG_DEBUG("Server::OnInputCommand: Command is %s. Value is %f. PlayerID is %i.", e.Command.c_str(), e.Value, e.PlayerID);
+    return true;
 }

src/Game/CMakeLists.txt

@@ -27,6 +27,8 @@ set(SOURCE_FILES
     "Game.cpp"
     ${SOURCE_FILES_Systems}
     ${SOURCE_FILES_Events}
+
+    
 )
 
 set(LIBRARIES

src/Game/Game.cpp

@@ -79,6 +79,7 @@ Game::Game(int argc, char* argv[])
     m_SystemPipeline->AddSystem<EditorSystem>(updateOrderLevel, m_Renderer);
     m_SystemPipeline->AddSystem<HealthSystem>(updateOrderLevel);
     m_SystemPipeline->AddSystem<PlayerMovementSystem>(updateOrderLevel);
+    m_SystemPipeline->AddSystem<InterpolationSystem>(updateOrderLevel);
     m_SystemPipeline->AddSystem<SpawnerSystem>(updateOrderLevel);
     m_SystemPipeline->AddSystem<PlayerSpawnSystem>(updateOrderLevel);
     // Populate Octree with collidables
@@ -145,7 +146,6 @@ void Game::Tick()
     m_SystemPipeline->Update(m_World, dt);
     debugTick(dt);
     m_Renderer->Update(dt);
-    m_EventBroker->Process<Client>();
     m_SoundSystem->Update(dt);
     GLERROR("Game::Tick m_RenderQueueFactory->Update");
     m_Renderer->Draw(*m_RenderFrame);

src/Game/Systems/InterpolationSystem.cpp

@@ -0,0 +1,86 @@
+#include "Systems/InterpolationSystem.h"
+
+//void InterpolationSystem::UpdateComponent(World * world, ComponentWrapper & transform, double dt)
+//{
+//    if (m_InterpolationPoints[transform.EntityID].size() > 0) {
+//        Transform& sTransform = m_InterpolationPoints[transform.EntityID].front();
+//        sTransform.interpolationTime += dt;
+//        if (sTransform.interpolationTime > 0.05) {
+//            double time = std::fmod(sTransform.interpolationTime, 0.05f);
+//            m_InterpolationPoints[transform.EntityID].pop();
+//            if (m_InterpolationPoints[transform.EntityID].size() <= 0) {
+//                return;
+//            }
+//            sTransform = m_InterpolationPoints[transform.EntityID].front();
+//            sTransform.interpolationTime = time;
+//        }
+//        glm::vec3 nextPosition = sTransform.Position;
+//        glm::vec3 currentPosition = static_cast<glm::vec3>(transform["Position"]);
+//        transform["Position"] = vectorInterpolation(currentPosition, nextPosition, sTransform.interpolationTime);
+//    }
+//}
+
+void InterpolationSystem::UpdateComponent(World * world, EntityWrapper& entity, ComponentWrapper & transform, double dt)
+{
+    if (m_NextTransform.find(transform.EntityID) != m_NextTransform.end()) { // Exists in map
+        m_NextTransform[transform.EntityID].interpolationTime += dt;
+        Transform sTransform = m_NextTransform[transform.EntityID];
+        double time = sTransform.interpolationTime;
+        if (time > SNAPSHOTINTERVAL) {
+            if (m_LastReceivedTransform.find(transform.EntityID) != m_LastReceivedTransform.end()) {
+                m_NextTransform[transform.EntityID] = m_LastReceivedTransform[transform.EntityID];
+                m_NextTransform[transform.EntityID].interpolationTime = time - SNAPSHOTINTERVAL;
+                sTransform = m_NextTransform[transform.EntityID];
+                m_LastReceivedTransform.erase(transform.EntityID);
+            } else {
+                m_NextTransform.erase(transform.EntityID);
+            }
+        }
+        if (transform.Info.Name == "Transform") {
+            // Position
+            glm::vec3 nextPosition = sTransform.Position;
+            glm::vec3 currentPosition = static_cast<glm::vec3>(transform["Position"]);
+            (glm::vec3&)transform["Position"] += vectorInterpolation<glm::vec3>(currentPosition, nextPosition, sTransform.interpolationTime);
+            // Orientation
+            glm::quat nextOrientation = sTransform.Orientation;
+            glm::quat currentOrientation = glm::quat(static_cast<glm::vec3>(transform["Orientation"]));
+            (glm::vec3&)transform["Orientation"] = glm::eulerAngles(glm::slerp<float>(currentOrientation, nextOrientation, sTransform.interpolationTime / SNAPSHOTINTERVAL));
+            // Scale
+            glm::vec3 nextScale = sTransform.Scale;
+            glm::vec3 currentScale = static_cast<glm::vec3>(transform["Scale"]);
+            (glm::vec3&)transform["Scale"] += vectorInterpolation<glm::vec3>(currentScale, nextScale, sTransform.interpolationTime);
+        }
+    }
+}
+
+bool InterpolationSystem::OnInterpolate(const Events::Interpolate & e)
+{
+    Transform transform;
+    int offset = 0;
+    // Read the data
+    memcpy(&transform.Position, e.DataArray.get() + offset, sizeof(glm::vec3));
+    offset += sizeof(glm::vec3);
+    glm::vec3 tempOrientation;
+    memcpy(&tempOrientation, e.DataArray.get() + offset, sizeof(glm::vec3));
+    transform.Orientation = glm::quat(tempOrientation);
+    offset += sizeof(glm::vec3);
+    memcpy(&transform.Scale, e.DataArray.get() + offset, sizeof(glm::vec3));
+    transform.interpolationTime = 0.0f;
+
+    if (m_NextTransform.find(e.Entity) != m_NextTransform.end()) { // Did exist
+        m_LastReceivedTransform[e.Entity] = transform;
+    } else { // Did not
+        m_NextTransform[e.Entity] = transform;
+    }
+    // Check if queue already exists
+    //if (m_InterpolationPoints.find(e.Entity) != m_InterpolationPoints.end()) { // Did exist, push to queue
+    //    m_InterpolationPoints[e.Entity].push(transform);
+    //} 
+
+    //else { // Did not exist, create queue
+    //    std::queue<Transform> transformQueue;
+    //    transformQueue.push(transform);
+    //    m_InterpolationPoints[e.Entity] = transformQueue;
+    //}
+    return false;
+}