wrong directory name

.gitea/workflows/linux.yaml

@@ -0,0 +1,52 @@
+name: Linux arm64
+run-name: Build And Test
+
+on: 
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  Build:
+    runs-on: ubuntu-latest
+    env:
+      XMAKE_ROOT: y
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+
+      - name: Prepare Xmake
+        uses: xmake-io/github-action-setup-xmake@v1
+        with:
+          xmake-version: latest
+          actions-cache-folder: '.xmake-cache'
+          actions-cache-key: 'ubuntu-xmake'
+
+      - name: Packages List
+        run : |
+          xmake show -l packages | grep -E 'require|project' > ${{ github.workspace }}/packages.txt
+          cat ${{ github.workspace }}/packages.txt
+
+      - name: Calc deps hash
+        uses: seepine/hash-files@v1
+        id: get-hash
+        with:
+          patterns: 'packages.txt'
+
+      - name: Packages cache
+        uses: actions/cache@v4
+        with:
+          path: ~/.xmake/packages
+          key: ${{ runner.os }}-${{ steps.get-hash.outputs.hash }}
+
+      - name: XMake config
+        run: xmake f --policies=package.install_only -p linux -y
+
+      - name: Build
+        run: xmake
+
+      - name: Test
+        run: xmake test

.gitignore

@@ -9,3 +9,4 @@ NazaraLog.log
 
 .vscode/settings.json
 .vscode/compile_commands.json
+.cache

.vscode/launch.json

@@ -8,7 +8,7 @@
             "type": "xmake",
             "request": "launch",
             "name": "Debug",
-            "target": "Blitz2",
+            "target": "Blitz2Client",
             "cwd": "${workspaceFolder}",
         }
     ]

assets/example.passlist

@@ -0,0 +1,58 @@
+passlist "Forward Passlist"
+{
+    attachment "DepthBuffer"
+    {
+        format "PreferredDepthStencil"
+    }
+
+    pass "DepthPrepass"
+    {
+        impl "Depth"
+        {
+            MatPass "DepthPass"
+        }
+
+        depthstenciloutput "DepthBuffer"
+    }
+
+    attachment "ForwardOutput"
+    {
+        format "RGBA16F"
+    }
+
+    pass "ForwardPass"
+    {
+        impl "Forward"
+        output "Output" "ForwardOutput"
+        depthstencilinput "DepthBuffer"
+        depthstenciloutput "DepthBuffer"
+        flag "LightShadowing"
+    }
+
+    attachment "Gamma"
+    {
+        format "RGBA8"
+    }
+
+    pass "Gamma correction"
+    {
+        impl "PostProcess"
+        {
+            Shader "PostProcess.GammaCorrection"
+        }
+
+        input "Input" "ForwardOutput"
+        output "Output" "Gamma"
+    }
+
+    attachmentproxy "ImguiOutput" "Gamma"
+
+    pass "Imgui"
+    {
+        impl "Imgui"
+        input "Input" "Gamma"
+        output "Output" "ImguiOutput"
+    }
+
+    output "ImguiOutput"
+}

include/blitz/network/EnetClient.h

@@ -26,7 +26,7 @@ class EnetClient : private NonCopyable {
 	EnetConnection m_Connection;
 	Nz::ENetHost m_Host;
 	Nz::ENetPeer* m_Peer;
-	std::thread m_Thread;
+	std::jthread m_Thread;
 	bool m_Running;
 
 	void Update();

include/blitz/network/EnetServer.h

@@ -17,6 +17,8 @@ class EnetServer : private NonCopyable {
 
 	void Destroy();
 
+	bool IsClosed() const;
+
 	void CloseConnection(std::uint16_t a_PeerId);
 
 	EnetConnection* GetConnection(std::uint16_t a_PeerId);
@@ -33,7 +35,7 @@ class EnetServer : private NonCopyable {
 
 	Nz::ENetHost m_Host;
 	bool m_Running;
-	std::thread m_Thread;
+	std::jthread m_Thread;
 	std::map<std::uint16_t, std::unique_ptr<EnetConnection>> m_Connections;
 };
 

include/client/Client.h

@@ -1,7 +1,6 @@
 #pragma once
 
 #include <Nazara/Core/EnttWorld.hpp>
-#include <atomic>
 #include <blitz/network/EnetClient.h>
 #include <blitz/protocol/PacketHandler.h>
 
@@ -18,6 +17,9 @@ class Client : private NonCopyable {
 
 	bool IsConnected();
 
+	NazaraSignal(OnClientReady);
+	NazaraSignal(OnClientDisconnect);
+
   private:
 	EnttWorld m_World;
 	std::unique_ptr<network::EnetClient> m_NetworkClient;

include/client/ClientApp.h

@@ -22,6 +22,10 @@ class ClientApp : public Nz::ApplicationComponent {
 
 	void Update(Nz::Time elapsedTime) override;
 
+	Nz::Window* GetWindow() {
+		return m_Window;
+	}
+
   private:
 	Nz::Window* m_Window;
 	std::unique_ptr<Nz::StateMachine> m_StateMachine;

include/client/ImGuiAppComponent.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <Nazara/Core/ApplicationComponent.hpp>
+
+namespace Nz {
+
+class Window;
+class Texture;
+
+}  // namespace Nz
+
+namespace blitz {
+namespace client {
+
+class StateData;
+
+class ImGuiAppComponent : public Nz::ApplicationComponent {
+  public:
+	ImGuiAppComponent(Nz::ApplicationBase& app, Nz::Window& a_Window);
+	~ImGuiAppComponent();
+
+	void Update(Nz::Time elapsedTime) override;
+
+  private:
+	Nz::Window& m_Window;
+	std::shared_ptr<Nz::Texture> m_FontTexture;
+
+	void SetStyle();
+	void UpdateFontTexture();
+};
+
+}  // namespace client
+}  // namespace blitz

include/client/handlers/PlayerJoinHandler.h

@@ -10,6 +10,8 @@ class PlayerJoinHandler : public protocol::PacketHandler {
 
 	NazaraSlot(network::EnetConnection, OnPlayerJoin, m_Slot);
 
+	NazaraSignal(OnLocalPlayerReady);
+
   private:
 	void Handle(const protocol::data::PlayerJoin&);
 };

include/client/states/ConnectingState.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include <Nazara/Network/IpAddress.hpp>
+#include <Nazara/Widgets/ButtonWidget.hpp>
+#include <Nazara/Widgets/LabelWidget.hpp>
+#include <client/Client.h>
+#include <client/states/AbstractState.h>
+#include <queue>
+
+namespace blitz {
+
+namespace server {
+class Server;
+}  // namespace server
+
+namespace client {
+
+class ConnectingState : public AbstractState {
+  public:
+	ConnectingState(std::shared_ptr<StateData> a_StateData, std::shared_ptr<AbstractState> a_PreviousState,
+		const std::string& a_Address, std::uint16_t a_Port, bool a_IntegratedServer = false);
+	~ConnectingState();
+
+  private:
+	struct ResolvingData {
+		bool m_HasResult = false;
+		Nz::Result<std::vector<Nz::IpAddress>, std::string /*error*/> m_Result = Nz::Err("");
+		std::string m_ServerName;
+		std::uint16_t m_Port;
+	};
+
+	ResolvingData m_ResolvingData;
+	bool m_IsConnected = false;
+	std::queue<Nz::IpAddress> m_Addresses;
+	Nz::MillisecondClock m_TimeoutClock;
+
+	Nz::ButtonWidget* m_BackButton;
+	Nz::LabelWidget* m_StatusText;
+	std::shared_ptr<AbstractState> m_NextState;
+	std::shared_ptr<AbstractState> m_PreviousState;
+
+	std::unique_ptr<Client> m_Client;
+	std::unique_ptr<server::Server> m_Server;
+
+	void LayoutWidgets() override;
+	bool Update(Nz::StateMachine& fsm, Nz::Time elapsedTime) override;
+
+	void TryResolve();
+	void TryConnect(const Nz::IpAddress& a_ServerAddress);
+	void TryNextAddress();
+
+	void OnBackPressed();
+
+	void OnConnect();
+	void OnConnectFailed();
+
+	NazaraSlot(Client, OnClientReady, m_ClientReady);
+	NazaraSlot(Client, OnClientDisconnect, m_ClientDisconnect);
+};
+
+}  // namespace client
+}  // namespace blitz

include/client/states/CreateServerState.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <Nazara/Widgets/TextAreaWidget.hpp>
 #include <Nazara/Widgets/ButtonWidget.hpp>
 #include <client/states/AbstractState.h>
 
@@ -13,6 +14,7 @@ class CreateServerState : public AbstractState {
 
   private:
 	Nz::ButtonWidget* m_CreateServerButton;
+	Nz::TextAreaWidget* m_InputPort;
 	Nz::ButtonWidget* m_BackButton;
 	std::shared_ptr<AbstractState> m_NextState;
 	std::shared_ptr<AbstractState> m_PreviousState;

include/client/states/GameState.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <client/states/AbstractState.h>
+#include <memory>
+
+namespace blitz {
+
+namespace server {
+class Server;
+}
+
+namespace client {
+
+class Client;
+
+class GameState : public AbstractState {
+  public:
+	GameState(std::shared_ptr<StateData> a_StateData, std::unique_ptr<Client>&& a_Client, std::unique_ptr<server::Server>&& a_Server);
+	~GameState();
+
+  private:
+	std::unique_ptr<Client> m_Client;
+	std::unique_ptr<server::Server> m_Server;
+};
+
+}  // namespace client
+}  // namespace blitz

include/client/states/ImGuiDrawer.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <NazaraImgui/ImguiHandler.hpp>
+
+namespace blitz {
+namespace client {
+
+class ImGuiDrawer : private Nz::ImguiHandler {
+  protected:
+	ImGuiDrawer();
+	~ImGuiDrawer();
+
+	virtual void OnRenderImgui() = 0;
+};
+
+}  // namespace client
+}  // namespace blitz

include/client/states/JoinServerState.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <Nazara/Widgets/ButtonWidget.hpp>
+#include <Nazara/Widgets/TextAreaWidget.hpp>
 #include <client/states/AbstractState.h>
 
 namespace blitz {
@@ -12,6 +13,7 @@ class JoinServerState : public AbstractState {
 	~JoinServerState();
 
   private:
+	Nz::TextAreaWidget* m_InputAddress;
 	Nz::ButtonWidget* m_JoinServerButton;
 	Nz::ButtonWidget* m_BackButton;
 	std::shared_ptr<AbstractState> m_NextState;

include/client/states/MainMenuState.h

@@ -2,11 +2,12 @@
 
 #include <Nazara/Widgets/ButtonWidget.hpp>
 #include <client/states/AbstractState.h>
+#include <client/states/ImGuiDrawer.h>
 
 namespace blitz {
 namespace client {
 
-class MainMenuState : public AbstractState {
+class MainMenuState : public AbstractState, private ImGuiDrawer {
   public:
 	MainMenuState(std::shared_ptr<StateData>);
 	~MainMenuState();
@@ -21,6 +22,8 @@ class MainMenuState : public AbstractState {
 	void LayoutWidgets() override;
 	bool Update(Nz::StateMachine& fsm, Nz::Time elapsedTime) override;
 
+	void OnRenderImgui() override;
+
 	void OnJoinServerPressed();
 	void OnCreateServerPressed();
 	void OnOptionPressed();

include/server/Server.h

@@ -17,6 +17,8 @@ class Server {
 
 	network::EnetConnection* GetConnection(std::uint16_t a_PeerId);
 
+	bool IsClosed() const;
+
 	void CloseConnection(std::uint16_t a_PeerId);
 
 	void CloseServer();

include/server/systems/DisconnectSystem.h

@@ -8,9 +8,9 @@ namespace server {
 
 class Server;
 
-class DisconectSystem {
+class DisconnectSystem {
   public:
-	DisconectSystem(entt::registry&, EnttWorld& a_World, Server& a_Server);
+	DisconnectSystem(entt::registry&, EnttWorld& a_World, Server& a_Server);
 
 	void Update(Nz::Time elapsedTime);
 

src/ClientMain.cpp

@@ -4,14 +4,17 @@
 #include <Nazara/Physics3D/Physics3D.hpp>
 #include <Nazara/Platform/WindowingAppComponent.hpp>
 #include <Nazara/Widgets/Widgets.hpp>
+#include <NazaraImgui/NazaraImgui.hpp>
 #include <client/ClientApp.h>
+#include <client/ImGuiAppComponent.h>
 
 int main(int argc, char** argv) {
-	Nz::Application<Nz::Graphics, Nz::Physics3D, Nz::Widgets, Nz::TextRenderer> app(argc, argv);
+	Nz::Application<Nz::Graphics, Nz::Physics3D, Nz::Widgets, Nz::TextRenderer, Nz::Imgui> app(argc, argv);
 
 	app.AddComponent<Nz::EntitySystemAppComponent>();
 	app.AddComponent<Nz::WindowingAppComponent>();
-	app.AddComponent<blitz::client::ClientApp>();
+	auto& client = app.AddComponent<blitz::client::ClientApp>();
+	app.AddComponent<blitz::client::ImGuiAppComponent>(*client.GetWindow());
 
 	return app.Run();
 }

src/blitz/network/EnetClient.cpp

@@ -4,18 +4,18 @@ namespace blitz {
 namespace network {
 
 EnetClient::EnetClient(const Nz::IpAddress& address) : m_Running(true) {
-	m_Host.Create(Nz::IpAddress::LoopbackIpV4, 1);
+	m_Host.Create(address.GetProtocol() == Nz::NetProtocol::IPv4 ? Nz::IpAddress::LoopbackIpV4 : Nz::IpAddress::LoopbackIpV6, 1);
 	m_Peer = m_Host.Connect(address);
-	m_Thread = std::thread(&EnetClient::WorkerThread, this);
+	m_Thread = std::jthread(&EnetClient::WorkerThread, this);
 	m_Connection.SetPeer(m_Peer);
 }
 
 EnetClient::~EnetClient() {
 	if (m_Peer->IsConnected())
 		Disconnect();
-	m_Host.Destroy();
 	m_Running = false;
-	m_Thread.join();
+	m_Thread.request_stop();
+	m_Host.Destroy();
 }
 
 void EnetClient::Disconnect() {

src/blitz/network/EnetServer.cpp

@@ -5,10 +5,12 @@
 namespace blitz {
 namespace network {
 
-EnetServer::EnetServer(std::uint16_t port) : m_Running(true) {
+EnetServer::EnetServer(std::uint16_t a_Port) : m_Running(true) {
-	m_Host.Create(Nz::NetProtocol::Any, port, 80);
+	m_Running = m_Host.Create(Nz::NetProtocol::Any, a_Port, 80);
+	if (m_Running) {
 		m_Host.AllowsIncomingConnections(true);
-	m_Thread = std::thread(&EnetServer::WorkerThread, this);
+		m_Thread = std::jthread(&EnetServer::WorkerThread, this);
+	}
 }
 
 void EnetServer::WorkerThread() {
@@ -67,6 +69,8 @@ void EnetServer::Update() {
 					break;
 			}
 		} while (m_Host.CheckEvents(&event));
+	} else if (service < 0) {
+		m_Running = false;
 	}
 }
 
@@ -96,9 +100,13 @@ void EnetServer::RemoveConnection(std::uint16_t a_PeerId) {
 
 void EnetServer::Destroy() {
 	m_Running = false;
-	m_Thread.join();
+	m_Thread.request_stop();
 	m_Host.Destroy();
 }
 
+bool EnetServer::IsClosed() const {
+	return !m_Running;
+}
+
 }  // namespace network
 }  // namespace blitz

src/client/Client.cpp

@@ -1,5 +1,6 @@
 #include <client/Client.h>
 
+#include <blitz/systems/RemovePlayersSystem.h>
 #include <client/handlers/KeepAliveHandler.h>
 #include <client/handlers/LoggingSuccessHandler.h>
 #include <client/handlers/PlayerJoinHandler.h>
@@ -10,17 +11,26 @@ namespace blitz {
 namespace client {
 
 Client::Client(Nz::EnttWorld& a_World) : m_World({a_World}) {
-	// TODO: bind RemovePlayersSystem
+	AtomicEnttWorld world = m_World;
+	world->AddSystem<RemovePlayersSystem>(m_World);
 }
 
 Client::~Client() {
 	Disconnect();
+
+	AtomicEnttWorld world = m_World;
+	world->RemoveSystem<RemovePlayersSystem>();
 }
 
 void Client::BindHandlers() {
+	m_NetworkClient->OnDisconnect.Connect([this]() { OnClientDisconnect(); });
+	m_NetworkClient->OnDisconnectTimeout.Connect([this]() { OnClientDisconnect(); });
+
 	m_Handlers.push_back(std::make_unique<KeepAliveHandler>(m_NetworkClient->GetConnection(), m_World));
 	m_Handlers.push_back(std::make_unique<LoggingSuccessHandler>(m_NetworkClient->GetConnection(), m_World));
-	m_Handlers.push_back(std::make_unique<PlayerJoinHandler>(m_NetworkClient->GetConnection(), m_World));
+	auto playerJoin = std::make_unique<PlayerJoinHandler>(m_NetworkClient->GetConnection(), m_World);
+	playerJoin->OnLocalPlayerReady.Connect([this]() { OnClientReady(); });
+	m_Handlers.push_back(std::move(playerJoin));
 	m_Handlers.push_back(std::make_unique<PlayerLeaveHandler>(m_NetworkClient->GetConnection(), m_World));
 	m_Handlers.push_back(std::make_unique<PlayerListHandler>(m_NetworkClient->GetConnection(), m_World));
 }
@@ -38,6 +48,7 @@ void Client::Connect(const Nz::IpAddress& a_Ip) {
 void Client::Disconnect() {
 	if (!m_NetworkClient)
 		return;
+	m_NetworkClient->GetConnection().SendDisconnect({});
 	m_NetworkClient->Disconnect();
 	UnbindHandlers();
 	m_NetworkClient.reset(nullptr);
@@ -51,6 +62,7 @@ bool Client::IsConnected() {
 }
 
 void Client::Login() {
+	srand(time(0));
 	if (!m_NetworkClient || !m_NetworkClient->GetConnection().IsConnected())
 		return;
 	m_NetworkClient->GetConnection().SendPlayerLogin({"Player_" + std::to_string(rand() % 100)});

src/client/ClientApp.cpp

@@ -7,6 +7,7 @@
 #include <Nazara/Platform.hpp>
 #include <Nazara/Renderer.hpp>
 #include <Nazara/Widgets.hpp>
+#include <NazaraImgui/NazaraImgui.hpp>
 #include <client/states/MainMenuState.h>
 #include <random>
 
@@ -36,11 +37,15 @@ ClientApp::ClientApp(Nz::ApplicationBase& app) : Nz::ApplicationComponent(app),
 
 	auto renderTarget = std::make_shared<Nz::RenderWindow>(windowSwapchain);
 
+	Nz::Imgui::Instance()->Init(*m_Window, false);
+
+	auto passList = Nz::PipelinePassList::LoadFromFile("assets/example.passlist");
+
 	entt::handle cameraEntity = world.CreateEntity();
 	{
 		cameraEntity.emplace<Nz::NodeComponent>();
 
-		auto& cameraComponent = cameraEntity.emplace<Nz::CameraComponent>(renderTarget, Nz::ProjectionType::Orthographic);
+		auto& cameraComponent = cameraEntity.emplace<Nz::CameraComponent>(renderTarget, passList, Nz::ProjectionType::Orthographic);
 
 		cameraComponent.UpdateClearColor(Nz::Color(0.0f, 0.f, .0f, 0.0f));
 		cameraComponent.UpdateRenderMask(RenderMaskUI);
@@ -52,6 +57,7 @@ ClientApp::ClientApp(Nz::ApplicationBase& app) : Nz::ApplicationComponent(app),
 	m_StateData->m_AppComponent = this;
 	m_StateData->m_RenderTarget = renderTarget;
 	m_StateData->m_Window = m_Window;
+	m_StateData->m_Swapchain = &windowSwapchain;
 	m_StateData->m_World = &world;
 	m_StateData->m_Canvas.emplace(
 		world.GetRegistry(), m_Window->GetEventHandler(), m_Window->GetCursorController().CreateHandle(), RenderMaskUI);

src/client/ImGuiAppComponent.cpp

@@ -0,0 +1,96 @@
+#include <client/ImGuiAppComponent.h>
+
+#include <Nazara/Core/ApplicationBase.hpp>
+#include <Nazara/Platform/Window.hpp>
+#include <NazaraImgui/NazaraImgui.hpp>
+
+#include <blitz/common/Log.h>
+
+namespace blitz {
+namespace client {
+
+ImGuiAppComponent::ImGuiAppComponent(Nz::ApplicationBase& a_App, Nz::Window& a_Window) :
+	Nz::ApplicationComponent(a_App), m_Window(a_Window) {
+
+	ImGui::EnsureContextOnThisThread();
+
+	SetStyle();
+
+	a_App.AddUpdaterFunc(Nz::ApplicationBase::Interval{Nz::Time::Milliseconds(16)}, [&](Nz::Time elapsed) {
+		if (!m_Window.IsOpen())
+			return;
+
+		m_Window.ProcessEvents();
+
+		Nz::Imgui::Instance()->Update(Nz::Time::Milliseconds(16).AsSeconds());
+
+		Nz::Imgui::Instance()->Render();
+	});
+}
+
+ImGuiAppComponent::~ImGuiAppComponent() {}
+
+void ImGuiAppComponent::SetStyle() {
+	const static ImVec4 colorButton = {1.0f, 0.0f, 0.0f, 0.73f};
+	const static ImVec4 colorButtonHover = {0.56f, 0.02f, 0.02f, 1.0f};
+	const static ImVec4 colorButtonActive = {0.36f, 0.03f, 0.03f, 1.0f};
+	const static ImVec4 colorCheckMark = {1.0f, 1.0f, 1.0f, 1.0f};
+	const static ImVec4 colorTab = {0.38f, 0.02f, 0.02f, 1.0f};
+	const static ImVec4 colorTabHover = {0.74f, 0.0f, 0.0f, 0.73f};
+	const static ImVec4 colorTabActive = {1.0f, 0.0f, 0.0f, 0.73f};
+
+
+	ImGui::GetStyle().Colors[ImGuiCol_Button] = colorButton;
+	ImGui::GetStyle().Colors[ImGuiCol_ButtonActive] = colorButtonActive;
+	ImGui::GetStyle().Colors[ImGuiCol_ButtonHovered] = colorButtonHover;
+	ImGui::GetStyle().Colors[ImGuiCol_CheckMark] = colorCheckMark;
+	ImGui::GetStyle().Colors[ImGuiCol_FrameBg] = colorButton;
+	ImGui::GetStyle().Colors[ImGuiCol_FrameBgActive] = colorButtonActive;
+	ImGui::GetStyle().Colors[ImGuiCol_FrameBgHovered] = colorButtonHover;
+	ImGui::GetStyle().Colors[ImGuiCol_Tab] = colorTab;
+	ImGui::GetStyle().Colors[ImGuiCol_TabHovered] = colorTabHover;
+	ImGui::GetStyle().Colors[ImGuiCol_TabActive] = colorTabActive;
+	ImGui::GetStyle().Colors[ImGuiCol_TitleBgActive] = colorTabActive;
+	ImGui::GetStyle().Colors[ImGuiCol_SliderGrab] = colorButton;
+	ImGui::GetStyle().Colors[ImGuiCol_SliderGrabActive] = colorButton;
+	ImGui::GetStyle().Colors[ImGuiCol_HeaderActive] = colorTab;
+	ImGui::GetStyle().Colors[ImGuiCol_HeaderHovered] = colorTabActive;
+	ImGui::GetStyle().Colors[ImGuiCol_Header] = colorTabActive;
+
+	static const float DefaultFontSize = 25.0f;
+
+	ImFontConfig c;
+	c.SizePixels = DefaultFontSize;
+	c.OversampleH = 1;	// prevent from blurring font
+
+	ImGui::GetIO().Fonts->AddFontDefault(&c);
+
+	auto* doomFont = ImGui::GetIO().Fonts->AddFontFromFileTTF("assets/fonts/doom.ttf", DefaultFontSize, &c);
+	ImGui::GetIO().FontDefault = doomFont;
+
+	UpdateFontTexture();
+}
+
+void ImGuiAppComponent::UpdateFontTexture() {
+	auto& io = ImGui::GetIO();
+	unsigned char* pixels;
+	int width, height;
+
+	io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+
+	auto renderDevice = Nz::Graphics::Instance()->GetRenderDevice();
+	Nz::TextureInfo texParams;
+	texParams.width = width;
+	texParams.height = height;
+	texParams.pixelFormat = Nz::PixelFormat::RGBA8;
+	texParams.type = Nz::ImageType::E2D;
+	m_FontTexture = renderDevice->InstantiateTexture(texParams, pixels, true);
+	m_FontTexture->UpdateDebugName("FontTexture");
+
+	ImTextureID textureID = m_FontTexture.get();
+	io.Fonts->TexID = textureID;
+}
+
+void ImGuiAppComponent::Update(Nz::Time elapsedTime) {}
+}  // namespace client
+}  // namespace blitz

src/client/handlers/PlayerJoinHandler.cpp

@@ -27,6 +27,7 @@ void PlayerJoinHandler::Handle(const protocol::data::PlayerJoin& a_PlayerJoin) {
 	world->GetRegistry().emplace<PlayerInfoComponent>(localPlayer, a_PlayerJoin.m_Player);
 
 	// we are now into the game so we can begin to load the world for example
+	OnLocalPlayerReady();
 }
 
 PlayerJoinHandler::~PlayerJoinHandler() {}

src/client/states/ConnectingState.cpp

@@ -0,0 +1,189 @@
+#include "client/states/GameState.h"
+#include <client/states/ConnectingState.h>
+
+#include <Nazara/Core/ApplicationBase.hpp>
+#include <Nazara/Core/Clock.hpp>
+#include <Nazara/Core/EntitySystemAppComponent.hpp>
+#include <Nazara/Core/EnttWorld.hpp>
+#include <Nazara/Core/StateMachine.hpp>
+#include <Nazara/Core/Time.hpp>
+#include <Nazara/Network/Algorithm.hpp>
+#include <Nazara/Network/IpAddress.hpp>
+#include <Nazara/TextRenderer.hpp>
+#include <Nazara/TextRenderer/SimpleTextDrawer.hpp>
+#include <blitz/common/Format.h>
+#include <blitz/common/Log.h>
+#include <client/Client.h>
+#include <memory>
+#include <server/Server.h>
+
+namespace blitz {
+namespace client {
+
+static const int ConnectTimeout = 5;
+
+ConnectingState::ConnectingState(std::shared_ptr<StateData> a_StateData, std::shared_ptr<AbstractState> a_PreviousState,
+	const std::string& a_Address, std::uint16_t a_Port, bool a_Server) :
+	AbstractState(std::move(a_StateData)),
+	m_PreviousState(std::move(a_PreviousState)),
+	m_Client(std::make_unique<Client>(*GetStateData().m_World)) {
+	m_ResolvingData.m_Port = a_Port;
+	m_ResolvingData.m_ServerName = a_Address;
+
+	Nz::SimpleTextDrawer textDrawer;
+	textDrawer.SetTextColor({0.0, 0.0, 0.0, 1.0});
+	textDrawer.SetCharacterSize(75);
+	m_BackButton = CreateWidget<Nz::ButtonWidget>();
+	textDrawer.SetText("Back");
+	m_BackButton->UpdateText(textDrawer);
+	m_BackButton->Resize(m_BackButton->GetPreferredSize());
+	m_BackButton->OnButtonTrigger.Connect([this](const Nz::ButtonWidget*) { OnBackPressed(); });
+
+	m_StatusText = CreateWidget<Nz::LabelWidget>();
+	m_StatusText->UpdateText(Nz::SimpleTextDrawer::Draw("Connecting ...", 80));
+
+	if (a_Server) {
+		auto& app = GetStateData().m_App;
+		auto& ecs = app->GetComponent<Nz::EntitySystemAppComponent>();
+
+		// create server
+		Nz::EnttWorld& world = ecs.AddWorld<Nz::EnttWorld>();
+		m_Server = std::make_unique<server::Server>(a_Port, world);
+	}
+
+	m_ClientReady.Connect(m_Client->OnClientReady, [this]() { OnConnect(); });
+	m_ClientDisconnect.Connect(m_Client->OnClientDisconnect, [this]() { TryNextAddress(); });
+
+	TryResolve();
+}
+
+ConnectingState::~ConnectingState() {}
+
+bool ConnectingState::Update(Nz::StateMachine& fsm, Nz::Time elapsedTime) {
+	if (m_NextState)
+		fsm.ChangeState(std::move(m_NextState));
+
+	if (m_Server && m_Server->IsClosed())
+		OnConnectFailed();
+
+	if (m_ResolvingData.m_HasResult) {
+		if (m_ResolvingData.m_Result) {
+			// Register resolved addresses as next addresses
+			const auto& addresses = m_ResolvingData.m_Result.GetValue();
+			for (auto resultIt = addresses.rbegin(); resultIt != addresses.rend(); ++resultIt)
+				m_Addresses.emplace(*resultIt);
+			TryConnect(m_Addresses.front());
+		} else {
+			OnConnectFailed();
+		}
+		m_ResolvingData.m_HasResult = false;
+	}
+
+	static Nz::MillisecondClock clock;
+	static int progress = -1;
+
+	if (m_Client && clock.RestartIfOver(Nz::Time::Milliseconds(500))) {
+		progress++;
+		progress %= 4;
+		std::string textStr = "Connecting ";
+		for (int i = 0; i < progress; i++) {
+			textStr += ".";
+		}
+		m_StatusText->UpdateText(Nz::SimpleTextDrawer::Draw(textStr, 80));
+		return true;
+	}
+
+	if (!m_Addresses.empty() && m_TimeoutClock.RestartIfOver(Nz::Time::Seconds(ConnectTimeout))) {
+		TryNextAddress();
+	}
+
+	if (m_IsConnected) {
+		fsm.ResetState(std::make_shared<GameState>(GetStateDataPtr(), std::move(m_Client), std::move(m_Server)));
+	}
+
+	return true;
+}
+
+void ConnectingState::TryConnect(const Nz::IpAddress& a_ServerAddress) {
+	if (!m_Client)
+		return;
+	LogD("Trying to connect to " + a_ServerAddress.ToString() + " ...");
+	m_TimeoutClock.Restart();
+	m_Client->Connect(a_ServerAddress);
+}
+
+void ConnectingState::TryNextAddress() {
+	m_Client->Disconnect();
+	m_Addresses.pop();
+	if (m_Addresses.empty())
+		OnConnectFailed();
+	else
+		TryConnect(m_Addresses.front());
+}
+
+void ConnectingState::TryResolve() {
+	Nz::ResolveError resolveError;
+	auto serverAddresses = Nz::IpAddress::ResolveHostname(
+		Nz::NetProtocol::Any, m_ResolvingData.m_ServerName, std::to_string(m_ResolvingData.m_Port), &resolveError);
+	if (serverAddresses.empty()) {
+		m_ResolvingData.m_Result = Nz::Err(Nz::ErrorToString(resolveError));
+		LogD("Failed to resolve " + m_ResolvingData.m_ServerName + " !");
+	} else {
+		std::vector<Nz::IpAddress> addresses;
+		addresses.reserve(serverAddresses.size());
+		for (auto hostnameInfo : serverAddresses) {
+			hostnameInfo.address.SetPort(m_ResolvingData.m_Port);
+			addresses.push_back(hostnameInfo.address);
+		}
+
+		m_ResolvingData.m_Result = std::move(addresses);
+	}
+
+	m_ResolvingData.m_HasResult = true;
+}
+
+void ConnectingState::LayoutWidgets() {
+	Nz::Vector2f canvasSize = GetStateData().m_Canvas->GetSize();
+	Nz::Vector2f center = canvasSize / 2.f;
+
+	constexpr float padding = 10.f;
+
+	std::array<Nz::BaseWidget*, 2> widgets = {m_StatusText, m_BackButton};
+
+	float maxWidth = 0.f;
+	float totalSize = padding * (widgets.size() - 1);
+	for (Nz::BaseWidget* widget : widgets) {
+		Nz::Vector2f size = widget->GetSize();
+
+		maxWidth = std::max(maxWidth, size.x);
+		totalSize += size.y;
+	}
+
+	Nz::Vector2f cursor = center;
+	cursor.y += totalSize / 2.f;
+
+	for (Nz::BaseWidget* widget : widgets) {
+		widget->Resize({maxWidth, widget->GetHeight()});
+		widget->SetPosition({0.f, cursor.y - widget->GetSize().y, 0.f});
+		widget->CenterHorizontal();
+		cursor.y -= widget->GetSize().y + padding;
+	}
+}
+
+void ConnectingState::OnBackPressed() {
+	m_NextState = std::move(m_PreviousState);
+}
+
+void ConnectingState::OnConnect() {
+	m_IsConnected = true;
+}
+
+void ConnectingState::OnConnectFailed() {
+	m_StatusText->UpdateText(Nz::SimpleTextDrawer::Draw("Connection failed !", 80));
+	m_StatusText->CenterHorizontal();
+	m_Server.reset(nullptr);
+	m_Client.reset(nullptr);
+}
+
+}  // namespace client
+}  // namespace blitz

src/client/states/CreateServerState.cpp

@@ -1,7 +1,13 @@
+#include <Nazara/Core/Color.hpp>
+#include <Nazara/Network/IpAddress.hpp>
+#include <Nazara/Widgets/TextAreaWidget.hpp>
 #include <client/states/CreateServerState.h>
 
 #include <Nazara/Core/StateMachine.hpp>
 #include <Nazara/TextRenderer.hpp>
+#include <client/Client.h>
+#include <client/states/ConnectingState.h>
+#include <server/Server.h>
 
 namespace blitz {
 namespace client {
@@ -18,6 +24,18 @@ CreateServerState::CreateServerState(std::shared_ptr<StateData> a_StateData, std
 	m_CreateServerButton->Resize(m_CreateServerButton->GetPreferredSize());
 	m_CreateServerButton->OnButtonTrigger.Connect([this](const Nz::ButtonWidget*) { OnCreateServerPressed(); });
 
+	m_InputPort = CreateWidget<Nz::TextAreaWidget>();
+	m_InputPort->SetBackgroundColor(Nz::Color::White());
+	m_InputPort->EnableBackground(true);
+	m_InputPort->EnableMultiline(false);
+	m_InputPort->SetTextColor(Nz::Color::Black());
+	m_InputPort->SetCharacterFilter([](Nz::UInt32 character) {
+		if (character < U'0' || character > U'9')
+			return false;
+
+		return true;
+	});
+
 	m_BackButton = CreateWidget<Nz::ButtonWidget>();
 	textDrawer.SetText("Back");
 	m_BackButton->UpdateText(textDrawer);
@@ -40,7 +58,7 @@ void CreateServerState::LayoutWidgets() {
 
 	constexpr float padding = 10.f;
 
-	std::array<Nz::BaseWidget*, 2> widgets = {m_CreateServerButton, m_BackButton};
+	std::array<Nz::BaseWidget*, 3> widgets = {m_InputPort, m_CreateServerButton, m_BackButton};
 
 	float maxWidth = 0.f;
 	float totalSize = padding * (widgets.size() - 1);
@@ -62,7 +80,24 @@ void CreateServerState::LayoutWidgets() {
 	}
 }
 
-void CreateServerState::OnCreateServerPressed() {}
+void CreateServerState::OnCreateServerPressed() {
+	std::string serverPort = m_InputPort->GetText();
+	if (serverPort.empty()) {
+		// UpdateStatus("Error: blank server port", Nz::Color::Red());
+		return;
+	}
+
+	long long rawPort = std::stoi(serverPort);
+	if (rawPort <= 0 || rawPort > 0xFFFF) {
+		// UpdateStatus("Error: " + serverPort + " is not a valid port", Nz::Color::Red());
+		return;
+	}
+
+	Nz::IpAddress address = Nz::IpAddress::LoopbackIpV4;
+	address.SetPort(rawPort);
+
+	m_NextState = std::make_shared<ConnectingState>(GetStateDataPtr(), shared_from_this(), "localhost", rawPort, true);
+}
 
 void CreateServerState::OnBackPressed() {
 	m_NextState = std::move(m_PreviousState);

src/client/states/GameState.cpp

@@ -0,0 +1,16 @@
+#include <client/states/GameState.h>
+
+#include <client/Client.h>
+#include <server/Server.h>
+
+namespace blitz {
+namespace client {
+
+GameState::GameState(
+	std::shared_ptr<StateData> a_StateData, std::unique_ptr<Client>&& a_Client, std::unique_ptr<server::Server>&& a_Server) :
+	AbstractState(a_StateData), m_Client(std::move(a_Client)), m_Server(std::move(a_Server)) {}
+
+GameState::~GameState() {}
+
+}  // namespace client
+}  // namespace blitz

src/client/states/ImGuiDrawer.cpp

@@ -0,0 +1,17 @@
+#include <client/states/ImGuiDrawer.h>
+
+#include <NazaraImgui/NazaraImgui.hpp>
+
+namespace blitz {
+namespace client {
+
+ImGuiDrawer::ImGuiDrawer() {
+	Nz::Imgui::Instance()->AddHandler(this);
+}
+
+ImGuiDrawer::~ImGuiDrawer() {
+	Nz::Imgui::Instance()->RemoveHandler(this);
+}
+
+}  // namespace client
+}  // namespace blitz

src/client/states/JoinServerState.cpp

@@ -1,3 +1,6 @@
+#include <Nazara/Network/Enums.hpp>
+#include <Nazara/Network/IpAddress.hpp>
+#include <client/states/ConnectingState.h>
 #include <client/states/JoinServerState.h>
 
 #include <Nazara/Core/StateMachine.hpp>
@@ -12,6 +15,13 @@ JoinServerState::JoinServerState(std::shared_ptr<StateData> a_StateData, std::sh
 	textDrawer.SetTextColor({0.0, 0.0, 0.0, 1.0});
 	textDrawer.SetCharacterSize(75);
 
+	m_InputAddress = CreateWidget<Nz::TextAreaWidget>();
+	m_InputAddress->SetBackgroundColor(Nz::Color::White());
+	m_InputAddress->EnableBackground(true);
+	m_InputAddress->EnableMultiline(false);
+	m_InputAddress->SetTextColor(Nz::Color::Black());
+	m_InputAddress->SetText("localhost");
+
 	m_JoinServerButton = CreateWidget<Nz::ButtonWidget>();
 	textDrawer.SetText("Join Server");
 	m_JoinServerButton->UpdateText(textDrawer);
@@ -40,7 +50,7 @@ void JoinServerState::LayoutWidgets() {
 
 	constexpr float padding = 10.f;
 
-	std::array<Nz::BaseWidget*, 2> widgets = {m_JoinServerButton, m_BackButton};
+	std::array<Nz::BaseWidget*, 3> widgets = {m_InputAddress, m_JoinServerButton, m_BackButton};
 
 	float maxWidth = 0.f;
 	float totalSize = padding * (widgets.size() - 1);
@@ -62,7 +72,21 @@ void JoinServerState::LayoutWidgets() {
 	}
 }
 
-void JoinServerState::OnJoinServerPressed() {}
+void JoinServerState::OnJoinServerPressed() {
+	std::string address = m_InputAddress->GetText();
+	auto separator = address.find(':');
+	std::string name = address.substr(0, separator);
+	std::uint16_t port = 25565;
+	if (separator != std::string::npos) {
+		try {
+			std::string rawPort = address.substr(separator + 1, std::string::npos);
+			port = std::stoi(rawPort);
+		} catch (std::exception& e) {
+			return;
+		}
+	}
+	m_NextState = std::make_shared<ConnectingState>(GetStateDataPtr(), shared_from_this(), name, port, false);
+}
 
 void JoinServerState::OnBackPressed() {
 	m_NextState = std::move(m_PreviousState);

src/client/states/MainMenuState.cpp

@@ -3,7 +3,8 @@
 #include <Nazara/Core/ApplicationBase.hpp>
 #include <Nazara/Core/StateMachine.hpp>
 #include <Nazara/TextRenderer.hpp>
-
+#include <NazaraImgui/ImguiHandler.hpp>
+#include <NazaraImgui/NazaraImgui.hpp>
 #include <client/states/CreateServerState.h>
 #include <client/states/JoinServerState.h>
 #include <client/states/OptionState.h>
@@ -81,6 +82,12 @@ void MainMenuState::LayoutWidgets() {
 	}
 }
 
+void MainMenuState::OnRenderImgui() {
+#ifndef NDEBUG
+	ImGui::ShowDemoWindow(nullptr);
+#endif
+}
+
 void MainMenuState::OnJoinServerPressed() {
 	m_NextState = std::make_shared<JoinServerState>(GetStateDataPtr(), shared_from_this());
 }

src/server/Server.cpp

@@ -13,8 +13,6 @@
 namespace blitz {
 namespace server {
 
-#define RegisterHandler(Handler) session.m_Handlers.push_back(std::make_unique<Handler>(*session.m_Connection, m_World))
-
 Server::Server(std::uint16_t a_Port, Nz::EnttWorld& a_World) : m_World({a_World}), m_NetworkServer(a_Port) {
 	RegisterSystems();
 	m_NetworkServer.OnClientConnect.Connect(this, &Server::HandleConnect);
@@ -22,7 +20,14 @@ Server::Server(std::uint16_t a_Port, Nz::EnttWorld& a_World) : m_World({a_World}
 	m_NetworkServer.OnClientDisconnectTimeout.Connect(this, &Server::HandleDisconnect);
 }
 
-Server::~Server() {}
+Server::~Server() {
+	CloseServer();
+
+	AtomicEnttWorld world = m_World;
+	world->RemoveSystem<KeepAliveSystem>();
+	world->RemoveSystem<DisconnectSystem>();
+	world->RemoveSystem<RemovePlayersSystem>();
+}
 
 void Server::HandleConnect(network::EnetConnection& a_Connection) {
 	Session newSession;
@@ -50,7 +55,7 @@ void Server::CreateEntity(network::EnetConnection& a_Connection) {
 void Server::RegisterSystems() {
 	AtomicEnttWorld world = m_World;
 	world->AddSystem<KeepAliveSystem>(m_World);
-	world->AddSystem<DisconectSystem>(m_World, *this);
+	world->AddSystem<DisconnectSystem>(m_World, *this);
 	world->AddSystem<RemovePlayersSystem>(m_World);
 
 	auto counter = world->CreateEntity();
@@ -58,8 +63,8 @@ void Server::RegisterSystems() {
 }
 
 void Server::RegisterHandlers(Session& session) {
-	RegisterHandler(KeepAliveHandler);
+	session.m_Handlers.push_back(std::make_unique<KeepAliveHandler>(*session.m_Connection, m_World));
-	RegisterHandler(PlayerLoginHandler);
+	session.m_Handlers.push_back(std::make_unique<PlayerLoginHandler>(*session.m_Connection, m_World));
 }
 
 network::EnetConnection* Server::GetConnection(std::uint16_t a_PeerId) {
@@ -81,5 +86,9 @@ void Server::CloseServer() {
 	}
 }
 
+bool Server::IsClosed() const {
+	return m_NetworkServer.IsClosed();
+}
+
 }  // namespace server
 }  // namespace blitz

src/server/systems/DisconnectSystem.cpp

@@ -12,9 +12,9 @@
 namespace blitz {
 namespace server {
 
-DisconectSystem::DisconectSystem(entt::registry&, EnttWorld& a_World, Server& a_Server) : m_World(a_World), m_Server(a_Server) {}
+DisconnectSystem::DisconnectSystem(entt::registry&, EnttWorld& a_World, Server& a_Server) : m_World(a_World), m_Server(a_Server) {}
 
-void DisconectSystem::Update(Nz::Time elapsedTime) {
+void DisconnectSystem::Update(Nz::Time elapsedTime) {
 	AtomicEnttWorld world = m_World;
 
 	entt::registry& registry = world->GetRegistry();

xmake.lua

@@ -1,7 +1,10 @@
 add_rules("mode.debug", "mode.release")
 
 add_repositories("nazara-repo https://github.com/NazaraEngine/xmake-repo.git")
+add_repositories("nazara-imgui-repo https://github.com/SweetId/NazaraImgui-xmake-repo")
+
 add_requires("nazaraengine", { debug = false })
+add_requires("nazaraimgui")
 
 set_languages("c++20")
 set_warnings("all")
@@ -15,7 +18,7 @@ add_includedirs("include")
 target("Blitz2")
     set_kind("static")
     add_files("src/blitz/**.cpp", "src/server/**.cpp")
-    add_packages("nazaraengine", {public = true})
+    add_packages("nazaraimgui", "nazaraengine", {public = true})
 
 target("Blitz2Server")
     set_kind("binary")