current changes

CMakeLists.txt

@@ -4,86 +4,47 @@ set (CMAKE_CXX_STANDARD 11)
 include(ExternalProject)
 
 if(NOT CMAKE_BUILD_TYPE) 
-    set(CMAKE_BUILD_TYPE RELEASE)
+    set(CMAKE_BUILD_TYPE Release)
 	add_definitions(-DNDEBUG)
 endif(NOT CMAKE_BUILD_TYPE)
 
+# Download automatically, you can also just copy the conan.cmake file
+if(NOT EXISTS "${CMAKE_BINARY_DIR}/conan.cmake")
+   message(STATUS "Downloading conan.cmake from https://github.com/conan-io/cmake-conan")
+   file(DOWNLOAD "https://raw.githubusercontent.com/conan-io/cmake-conan/v0.13/conan.cmake"
+                 "${CMAKE_BINARY_DIR}/conan.cmake")
+endif()
+include(${CMAKE_BINARY_DIR}/conan.cmake)
+
+# Launch Conan Install
+conan_cmake_run(CONANFILE conanfile.txt
+                BASIC_SETUP CMAKE_TARGETS
+                BUILD missing)
+
+
 MESSAGE( STATUS "PROJECT_SOURCE_DIR: " ${PROJECT_SOURCE_DIR} )
 MESSAGE( STATUS "DarkRP2D_SOURCE_DIR: " ${DarkRP2D_SOURCE_DIR} )
 
-set(DarkRP2D_EXTERNAL_DIR ${DarkRP2D_SOURCE_DIR}/external)
-set(SDL2_DIR ${DarkRP2D_EXTERNAL_DIR}/SDL2-2.0.8)
-set(GLEW_DIR ${DarkRP2D_EXTERNAL_DIR}/glew-2.1.0)
-set(SDL2_Image_DIR ${DarkRP2D_EXTERNAL_DIR}/SDL2_image-2.0.3)
-set(FREETYPE_DIR ${DarkRP2D_EXTERNAL_DIR}/freetype-2.9)
-set(GLM_DIR ${DarkRP2D_EXTERNAL_DIR}/glm-0.9.9-a2)
-set(BOX2D_DIR ${DarkRP2D_EXTERNAL_DIR}/Box2D-2.3.1)
-set(IMGUI_DIR ${DarkRP2D_EXTERNAL_DIR}/imgui-1.60)
-set(ENTITYX_DIR ${DarkRP2D_EXTERNAL_DIR}/entityx-1.1.2)
-
 #Libs
-find_package(SDL2 REQUIRED CONFIG)
-include_directories(${SDL2_INCLUDE_DIRS})
-
-find_package(SDL2_Image REQUIRED CONFIG)
-include_directories(${SDL2_IMAGE_INCLUDE_DIRS})
-
-find_package(GLEW REQUIRED CONFIG)
-include_directories(${GLEW_INCLUDE_DIRS})
-
-find_package(FREETYPE REQUIRED CONFIG)
-include_directories(${FREETYPE_INCLUDE_DIRS})
-
-find_package(GLM REQUIRED CONFIG)
-include_directories(${GLM_INCLUDE_DIRS})
-
 find_package(OPENGL REQUIRED)
 
-find_package(BOX2D REQUIRED CONFIG)
-include_directories(${BOX2D_INCLUDE_DIRS})
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup()
 
-find_package(ENTITYX REQUIRED CONFIG)
-include_directories(${ENTITYX_INCLUDE_DIRS})
-
-MESSAGE( STATUS "Entityx Lib: " ${ENTITYX_LIBRARIES} )
-MESSAGE( STATUS "OpenGL Lib: " ${OPENGL_gl_LIBRARY} )
-MESSAGE( STATUS "SDL2 Lib: " ${SDL2_LIBRARIES}  )
-MESSAGE( STATUS "SDL2_IMG Lib: " ${SDL2_IMAGE_LIBRARIES}  )
-MESSAGE( STATUS "Glew Lib: " ${GLEW_LIBRARIES}  )
-MESSAGE( STATUS "Freetype lib: " ${FREETYPE_LIBRARIES}  )
-MESSAGE( STATUS "Box2D lib: " ${BOX2D_LIBRARIES}  )
+MESSAGE( STATUS "Conan Libs: " "${CONAN_LIBS}")
 
 file(GLOB_RECURSE DarkRP2D_SOURCE_FILES ${DarkRP2D_SOURCE_DIR}/src/*.cpp)
 
-if (${CMAKE_BUILD_TYPE} MATCHES "DEBUG")
+if (${CMAKE_BUILD_TYPE} MATCHES "Debug")
 	# Include imgui to build
-	file(GLOB IMGUI_SOURCE_FILES ${IMGUI_DIR}/*.cpp)
-	include_directories(${IMGUI_DIR}/include)
-	set(DarkRP2D_SOURCE_FILES ${DarkRP2D_SOURCE_FILES} ${IMGUI_SOURCE_FILES})
-endif (${CMAKE_BUILD_TYPE} MATCHES "DEBUG")
+	# Exclude if Release
+endif (${CMAKE_BUILD_TYPE} MATCHES "Debug")
 
 add_executable(DarkRP2D ${DarkRP2D_SOURCE_FILES})
 
-target_link_libraries(DarkRP2D	${SDL2_LIBRARIES} 
-					${SDL2_IMAGE_LIBRARIES} 
-					${GLEW_LIBRARIES} 
-					${FREETYPE_LIBRARIES}
+target_link_libraries(DarkRP2D
 					${OPENGL_gl_LIBRARY}
-					${BOX2D_LIBRARIES}
-					${ENTITYX_LIBRARIES})
-
-add_custom_command(
-	TARGET ${PROJECT_NAME} POST_BUILD
-	COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy ${FREETYPE_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy ${GLEW_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy ${BOX2D_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy ${ENTITYX_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_IMAGE_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_PNG_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_ZLIB_DLL} ${CMAKE_CURRENT_BINARY_DIR}
-	COMMENT "copys binaries from to ${CMAKE_CURRENT_BINARY_DIR}"
-)
+					${CONAN_LIBS})
 
 set (RESOURCE_DIR "${DarkRP2D_SOURCE_DIR}/resources")
 add_custom_command(

conanfile.txt

@@ -0,0 +1,18 @@
+[requires]
+GameEngine/0.0.1@gulum/stable
+box2d/2.3.1@conan/stable
+glm/0.9.9.1@g-truc/stable
+EntityX/1.1.2@gulum/stable
+freetype/2.9.0@bincrafters/stable
+sdl2/2.0.9@bincrafters/stable
+sdl2_image/2.0.4@bincrafters/stable
+glew/2.1.0@bincrafters/stable
+imgui/1.63@bincrafters/stable
+vscodepropertiesgen/0.1@mkovalchik/stable
+
+[generators]
+cmake
+VSCodeProperties
+
+[imports]
+bin, *.dll -> ./bin # Copies all dll files from packages bin folder to my "./" folder

dedicated_server/CMakeLists.txt

@@ -1,41 +0,0 @@
-cmake_minimum_required(VERSION 3.0)
-project(DarkRP2D_DEDICATED_SERVER)
-set (CMAKE_CXX_STANDARD 11)
-include(ExternalProject)
-
-if(NOT CMAKE_BUILD_TYPE) 
-    set(CMAKE_BUILD_TYPE RELEASE)
-	add_definitions(-DNDEBUG)
-endif(NOT CMAKE_BUILD_TYPE)
-
-MESSAGE( STATUS "PROJECT_SOURCE_DIR: " ${PROJECT_SOURCE_DIR} )
-MESSAGE( STATUS "DarkRP2D_DEDICATED_SERVER_SOURCE_DIR: " ${DarkRP2D_DEDICATED_SERVER_SOURCE_DIR} )
-
-set(DarkRP2D_EXTERNAL_DIR ${DarkRP2D_DEDICATED_SERVER_SOURCE_DIR}/../external)
-set(SDL2_net_DIR ${DarkRP2D_EXTERNAL_DIR}/SDL2_net-2.0.1)
-set(SDL2_DIR ${DarkRP2D_EXTERNAL_DIR}/SDL2-2.0.8)
-
-#Libs
-
-find_package(SDL2 REQUIRED CONFIG)
-include_directories(${SDL2_INCLUDE_DIRS})
-
-find_package(SDL2_net REQUIRED CONFIG)
-include_directories(${SDL2_NET_INCLUDE_DIRS})
-
-MESSAGE( STATUS "SDL2 Lib: " ${SDL2_LIBRARIES}  )
-MESSAGE( STATUS "SDL2_NET Lib: " ${SDL2_NET_LIBRARIES}  )
-
-file(GLOB_RECURSE DarkRP2D_DEDICATED_SERVER_SOURCE_FILES ${DarkRP2D_DEDICATED_SERVER_SOURCE_DIR}/src/*.cpp)
-
-add_executable(DarkRP2DDServer ${DarkRP2D_DEDICATED_SERVER_SOURCE_FILES})
-
-target_link_libraries(DarkRP2DDServer   ${SDL2_LIBRARIES} 
-                                        ${SDL2_NET_LIBRARIES} )
-
-add_custom_target(CopyBinaries
-	COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_DLL} ${CMAKE_BINARY_DIR}
-    COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_NET_DLL} ${CMAKE_BINARY_DIR}
-)
-
-add_dependencies(DarkRP2DDServer CopyBinaries)

dedicated_server/src/Constants.h

@@ -1,9 +0,0 @@
-#pragma once
-
-namespace constants {
-
-    const int CLIENT_PORT = 9999;
-    const int MAX_CLIENTS = 128;
-
-}
-

dedicated_server/src/DarkRP2DDedicatedServer.cpp

@@ -1,85 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <string>
-#include <iostream>
-
-#include <SDL_net.h>
-
-int main(int argc, char *argv[])
-{
-    TCPsocket sd, csd; /* Socket descriptor, Client socket descriptor */
-    IPaddress ip, *remoteIP;
-    int quit, quit2;
-    char buffer[512];
-
-    std::cout << "Starting DarkRP2D Server..." << std::endl;
-
-    if (SDLNet_Init() < 0)
-    {
-        fprintf(stderr, "SDLNet_Init: %s\n", SDLNet_GetError());
-        exit(EXIT_FAILURE);
-    }
-
-    /* Resolving the host using NULL make network interface to listen */ 
-    if (SDLNet_ResolveHost(&ip, NULL, 9999) < 0)
-    {
-        fprintf(stderr, "SDLNet_ResolveHost: %s\n", SDLNet_GetError());
-        exit(EXIT_FAILURE);
-    }
-
-    /* Open a connection with the IP provided (listen on the host's port) */ 
-    if (!(sd = SDLNet_TCP_Open(&ip)))
-    {
-        fprintf(stderr, "SDLNet_TCP_Open: %s\n", SDLNet_GetError());
-        exit(EXIT_FAILURE);
-    }
-
-    std::cout << "DarkRP2D Server started." << std::endl;
-    std::cout << "Waiting for a Connection!" << std::endl;
-
-    /* Wait for a connection, send data and term */ quit = 0;
-    while (!quit)
-    { /* This check the sd if there is a pending connection. * If there is one, accept that, and open a new socket for communicating */
-        if ((csd = SDLNet_TCP_Accept(sd)))
-        { /* Now we can communicate with the client using csd socket * sd will remain opened waiting other connections */
-
-            /* Get the remote address */ 
-            if ((remoteIP = SDLNet_TCP_GetPeerAddress(csd))) /* Print the address, converting in the host format */
-                printf("Host connected: %x %d\n", SDLNet_Read32(&remoteIP->host), SDLNet_Read16(&remoteIP->port));
-            else
-                fprintf(stderr, "SDLNet_TCP_GetPeerAddress: %s\n", SDLNet_GetError());
-
-            quit2 = 0;
-            while (!quit2)
-            {
-                if (SDLNet_TCP_Recv(csd, buffer, 512) > 0)
-                {
-                    printf("Client say: %s\n", buffer);
-
-                    if (strcmp(buffer, "exit") == 0) /* Terminate this connection */
-                    {
-                        quit2 = 1;
-                        printf("Terminate connection\n");
-                    }
-                    if (strcmp(buffer, "quit") == 0) /* Quit the program */
-                    {
-                        quit2 = 1;
-                        quit = 1;
-                        printf("Quit program\n");
-                    }
-                }
-            }
-
-            /* Close the client socket */ SDLNet_TCP_Close(csd);
-        }
-    }
-    std::cout << "Server is closing..." << std::endl;
-    SDLNet_TCP_Close(sd);
-    SDLNet_Quit();
-    std::cout << "Server closed!" << std::endl;
-
-    return EXIT_SUCCESS;
-
-    return 0;
-}

dedicated_server/src/Protocoll.h

@@ -1,22 +0,0 @@
-#pragma once
-
-#define CONNECTION_REQUEST 0x01
-#define CONNECTION_ACCEPTED 0x02
-#define CONNECTION_DENIED 0x03
-
-struct ConnectionRequest {
-    ConnectionRequest() : type(CONNECTION_REQUEST) {}
-    char type = CONNECTION_REQUEST;
-};
-
-struct ConnectionAccepted {
-    ConnectionAccepted() : type(CONNECTION_ACCEPTED) {}
-    char type;
-    int index;
-};
-
-struct ConnectionDenied {
-    ConnectionDenied() : type(CONNECTION_DENIED) {}
-    char type;
-};
-

dedicated_server/src/Server.cpp

@@ -1,164 +0,0 @@
-#include "Server.h"
-#include "Protocoll.h"
-
-#include <string>
-#include <iostream>
-#include <thread>
-
-Server::Server(int port) : m_maxClients(constants::MAX_CLIENTS), m_clientConnected{0}
-{
-    udpSocket = SDLNet_UDP_Open(port);
-
-    if (udpSocket == nullptr)
-    {
-        std::cout << "\tSDLNet_UDP_Open failed : " << SDLNet_GetError() << std::endl;
-    }
-    std::cout << "Server was started and is listening on port: " << port << std::endl;
-
-    //Creating ConnectionAccepted packet!
-    // Allocate udp packet with 512 byte size
-    connectionAccepted = SDLNet_AllocPacket(512);
-
-    if (connectionAccepted == nullptr)
-    {
-        std::cout << "\tSDLNet_AllocPacket failed : " << SDLNet_GetError() << std::endl;
-    }
-    ConnectionAccepted conAcc = ConnectionAccepted();
-    memcpy(connectionAccepted->data, &conAcc, sizeof(ConnectionAccepted));
-    connectionAccepted->len = sizeof(ConnectionAccepted);
-
-    connectionDenied = SDLNet_AllocPacket(512);
-
-    if (connectionDenied == nullptr)
-    {
-        std::cout << "\tSDLNet_AllocPacket failed : " << SDLNet_GetError() << std::endl;
-    }
-    ConnectionDenied conDen = ConnectionDenied();
-    memcpy(connectionDenied->data, &conDen, sizeof(ConnectionDenied));
-    connectionDenied->len = sizeof(ConnectionDenied);
-
-    //Creating receiver packet!
-    receivedPacket = SDLNet_AllocPacket(512);
-
-    if (receivedPacket == nullptr)
-    {
-        std::cout << "\tSDLNet_AllocPacket failed : " << SDLNet_GetError() << std::endl;
-    }
-}
-
-int Server::FindFreeClientIndex() const
-{   
-    for (int i = 0; i < m_maxClients; ++i)
-    {
-        if (!m_clientConnected[i])
-            return i;
-    }
-    return -1;
-}
-
-int Server::FindExistingClientIndex(const IPaddress &ip) const
-{
-    for (int i = 0; i < m_maxClients; ++i)
-    {
-        if (m_clientConnected[i] && m_clients[i].host == ip.host && m_clients[i].port == ip.port)
-            return i;
-    }
-    return -1;
-}
-
-bool Server::IsClientConnected(int clientIndex) const
-{
-    return m_clientConnected[clientIndex];
-}
-
-const IPaddress &Server::GetClientAddress(int clientIndex) const
-{
-    return m_clients[clientIndex];
-}
-
-void Server::update(unsigned int delta)
-{
-    //Receive packages
-    if (SDLNet_UDP_Recv(udpSocket, receivedPacket))
-    {
-        switch (*(receivedPacket->data))
-        {
-        case CONNECTION_REQUEST:
-            std::cout << "Connection request package received\n";
-            int freeIndex;
-            if ((freeIndex = this->FindFreeClientIndex()) == -1)
-            {   
-                std::cout << "Connection denied because server full" << std::endl;
-                //Send Connection denied
-                this->sendConnectionDenied(receivedPacket->address);
-                break;
-            }
-            std::cout << "Free index found: " << freeIndex << std::endl;
-            int indexOfExistingClient;
-            if ((indexOfExistingClient = FindExistingClientIndex(receivedPacket->address)) == -1)
-            {
-                std::cout << "Client doesent exist create new" << std::endl;
-                m_clients[freeIndex] = receivedPacket->address;
-                m_clientConnected[freeIndex] = true;
-                //Send connection accepted with index
-                this->sendConnectionAccepted(receivedPacket->address, freeIndex);
-                m_numConnectedClients++;
-                break;
-            }
-            else
-            {
-                std::cout << "Client exist sending accepted" << std::endl;
-                //Send connection accepted with index
-                this->sendConnectionAccepted(receivedPacket->address, indexOfExistingClient);
-            }
-            break;
-        default:
-            break;
-        }
-    }
-
-    //Wait 10 sec
-    using namespace std::chrono_literals;
-    std::this_thread::sleep_for(1s);
-
-    //Send data
-    /*for(auto &value: clients) {
-        value.send(this->udpSocket,*helloWorldPacket);
-    }
-    std::cout << "Data was send!!" << std::endl;*/
-}
-
-bool Server::sendPacket(UDPpacket &packet)
-{
-    // Send
-    // SDLNet_UDP_Send returns number of packets sent. 0 means error
-    if (SDLNet_UDP_Send(this->udpSocket, -1, &packet) == 0)
-    {
-        std::cout << "\tSDLNet_UDP_Send failed : " << SDLNet_GetError() << "\n"
-                  << "==========================================================================================================\n";
-        return false;
-    }
-    return true;
-}
-
-bool Server::sendConnectionDenied(IPaddress dest)
-{
-    this->connectionDenied->address.host = dest.host;
-    this->connectionDenied->address.port = dest.port;
-    return this->sendPacket(*connectionDenied);
-}
-
-bool Server::sendConnectionAccepted(IPaddress dest, int index)
-{
-    this->connectionAccepted->address.host = dest.host;
-    this->connectionAccepted->address.port = dest.port;
-    ((ConnectionAccepted *) connectionAccepted->data)->index = index;
-    return this->sendPacket(*connectionAccepted);
-}
-
-Server::~Server()
-{
-    SDLNet_FreePacket(receivedPacket);
-    SDLNet_FreePacket(connectionAccepted);
-    SDLNet_UDP_Close(udpSocket);
-}

dedicated_server/src/Server.h

@@ -1,36 +0,0 @@
-#pragma once
-
-#include <SDL_net.h>
-#include "Constants.h"
-
-class Server {
-    public:
-    Server(int port);
-    ~Server();
-
-    int FindFreeClientIndex() const;
-    int FindExistingClientIndex( const IPaddress &ip ) const;
-    bool IsClientConnected( int clientIndex ) const;
-    const IPaddress & GetClientAddress( int clientIndex ) const;
-
-    void update(unsigned int delta);
-
-    void gameTick();
-
-    private:
-    UDPsocket udpSocket;
-
-    UDPpacket *connectionDenied;
-    UDPpacket *connectionAccepted;
-    UDPpacket *receivedPacket;
-
-    int m_maxClients;
-    int m_numConnectedClients;
-    bool m_clientConnected[constants::MAX_CLIENTS];
-    IPaddress m_clients[constants::MAX_CLIENTS];
-
-    bool sendPacket(UDPpacket &packet);
-
-    bool sendConnectionDenied(IPaddress dest);
-    bool sendConnectionAccepted(IPaddress dest, int index);
-};

src/DarkRP2D.cpp

@@ -80,7 +80,6 @@ void DarkRP2D::render(unsigned int delta)
 #ifndef NDEBUG
 	ImGui_ImplSdlGL3_NewFrame(gWindow);
 #endif
-
 	//texttest
 	Shader bitmapShader = assets->getShader("bitmapShader");
 	font->drawText(bitmapShader, "Hallo du noob", 25.0f, 25.0f, 1.f, glm::vec3(0.5f, 0.8f, 0.2f));

src/DesktopLauncher.cpp

@@ -8,6 +8,8 @@
 #include "DarkRP2D.h"
 #include "Utility.h"
 
+#include <GameEngine.h>
+
 using namespace std;
 
 static SDL_Window *gWindow = NULL;
@@ -17,7 +19,35 @@ static bool gameQuit = false;
 void dispose();
 bool initSDL();
 
-int main(int argc, char *argv[])
+class DarkRP2DD : public GE::Application 
+{
+		void create() override 
+		{
+
+		}
+
+        virtual void update() override 
+		{
+
+		}
+
+        virtual void render() override 
+		{
+
+		}
+
+        virtual void resize() override 
+		{
+
+		}
+};
+
+GE::Application* CreateApplication()
+{
+	return new DarkRP2DD();
+}
+
+/*int main(int argc, char *argv[])
 {
 	//Init SDL_Window, SDL_Surface, SDL_Renderer
 	if (!initSDL())
@@ -40,7 +70,7 @@ int main(int argc, char *argv[])
 
 	dispose();
 	return 0;
-}
+}*/
 
 void Game::exit()
 {

src/Utility.cpp

@@ -85,8 +85,6 @@ void Utility::Debug::ImGuiLogger::Draw(const char *title, bool *p_open)
     ImGui::End();
 }
 
-#endif //NDEBUG
-
 void APIENTRY Utility::openglCallbackFunction(GLenum source,
                                               GLenum type,
                                               GLuint id,
@@ -153,6 +151,7 @@ void APIENTRY Utility::openglCallbackFunction(GLenum source,
         break;
     }
 }
+#endif //NDEBUG
 
 static const char *Errornames[] = {"OpenGL", "SDL", "GLEW", "Other"};
 void Utility::printWarning(ERROR_TYPE type, std::string msg)

src/Utility.h

@@ -1,5 +1,4 @@
-#ifndef UTILITY_H
-#define UTILITY_H
+#pragma once
 
 #include <GL/glew.h>
 #include <iostream>
@@ -13,10 +12,10 @@
 namespace Utility
 {
 
-#ifndef NDEBUG
+
 namespace Debug
 {
-
+#ifndef NDEBUG
 // Usage:
 //  static ExampleAppLog my_log;
 //  my_log.AddLog("Hello %d world\n", 123);
@@ -45,9 +44,9 @@ struct ImGuiLogger
 };
 
 extern ImGuiLogger openGLLogger;
-
-} // namespace Debug
 #endif //NDEBUG
+} // namespace Debug
+
 
 enum ERROR_TYPE
 {
@@ -72,4 +71,3 @@ void printError(ERROR_TYPE type, std::string msg);
 void printInfo(ERROR_TYPE type, std::string msg);
 
 } // namespace Utility
-#endif // UTILITY_H

src/imgui_impl_sdl_gl3.cpp

@@ -0,0 +1,488 @@
+// ImGui SDL2 binding with OpenGL3
+// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
+// (GL3W is a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc.)
+
+// Implemented features:
+//  [X] User texture binding. Cast 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+// Missing features:
+//  [ ] SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
+
+// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
+// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
+// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// https://github.com/ocornut/imgui
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
+//  2018-03-06: OpenGL: Added const char* glsl_version parameter to ImGui_ImplSdlGL3_Init() so user can override the GLSL version e.g. "#version 150".
+//  2018-02-23: OpenGL: Create the VAO in the render function so the setup can more easily be used with multiple shared GL context.
+//  2018-02-16: Inputs: Added support for mouse cursors, honoring ImGui::GetMouseCursor() value.
+//  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplSdlGL3_RenderDrawData() in the .h file so you can call it yourself.
+//  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
+//  2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
+//  2018-02-05: Misc: Using SDL_GetPerformanceCounter() instead of SDL_GetTicks() to be able to handle very high framerate (1000+ FPS).
+//  2018-02-05: Inputs: Keyboard mapping is using scancodes everywhere instead of a confusing mixture of keycodes and scancodes. 
+//  2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
+//  2018-01-19: Inputs: When available (SDL 2.0.4+) using SDL_CaptureMouse() to retrieve coordinates outside of client area when dragging. Otherwise (SDL 2.0.3 and before) testing for SDL_WINDOW_INPUT_FOCUS instead of SDL_WINDOW_MOUSE_FOCUS.
+//  2018-01-18: Inputs: Added mapping for ImGuiKey_Insert.
+//  2018-01-07: OpenGL: Changed GLSL shader version from 330 to 150.
+//  2017-09-01: OpenGL: Save and restore current bound sampler. Save and restore current polygon mode.
+//  2017-08-25: Inputs: MousePos set to -FLT_MAX,-FLT_MAX when mouse is unavailable/missing (instead of -1,-1).
+//  2017-05-01: OpenGL: Fixed save and restore of current blend func state.
+//  2017-05-01: OpenGL: Fixed save and restore of current GL_ACTIVE_TEXTURE.
+//  2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
+//  2016-09-05: OpenGL: Fixed save and restore of current scissor rectangle.
+//  2016-07-29: OpenGL: Explicitly setting GL_UNPACK_ROW_LENGTH to reduce issues because SDL changes it. (#752)
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#include "imgui_impl_sdl_gl3.h"
+
+// SDL,GL3W
+#include <SDL.h>
+#include <SDL_syswm.h>
+#include <GL/glew.h>
+
+// SDL data
+static Uint64       g_Time = 0;
+static bool         g_MousePressed[3] = { false, false, false };
+static SDL_Cursor*  g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
+
+// OpenGL data
+static char         g_GlslVersion[32] = "#version 150";
+static GLuint       g_FontTexture = 0;
+static int          g_ShaderHandle = 0, g_VertHandle = 0, g_FragHandle = 0;
+static int          g_AttribLocationTex = 0, g_AttribLocationProjMtx = 0;
+static int          g_AttribLocationPosition = 0, g_AttribLocationUV = 0, g_AttribLocationColor = 0;
+static unsigned int g_VboHandle = 0,g_ElementsHandle = 0;
+
+// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
+// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly, in order to be able to run within any OpenGL engine that doesn't do so. 
+// If text or lines are blurry when integrating ImGui in your engine: in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
+void ImGui_ImplSdlGL3_RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    ImGuiIO& io = ImGui::GetIO();
+    int fb_width = (int)(io.DisplaySize.x * io.DisplayFramebufferScale.x);
+    int fb_height = (int)(io.DisplaySize.y * io.DisplayFramebufferScale.y);
+    if (fb_width == 0 || fb_height == 0)
+        return;
+    draw_data->ScaleClipRects(io.DisplayFramebufferScale);
+
+    // Backup GL state
+    GLenum last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, (GLint*)&last_active_texture);
+    glActiveTexture(GL_TEXTURE0);
+    GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
+    GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    GLint last_sampler; glGetIntegerv(GL_SAMPLER_BINDING, &last_sampler);
+    GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
+    GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
+    GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
+    GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
+    GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
+    GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
+    GLenum last_blend_src_rgb; glGetIntegerv(GL_BLEND_SRC_RGB, (GLint*)&last_blend_src_rgb);
+    GLenum last_blend_dst_rgb; glGetIntegerv(GL_BLEND_DST_RGB, (GLint*)&last_blend_dst_rgb);
+    GLenum last_blend_src_alpha; glGetIntegerv(GL_BLEND_SRC_ALPHA, (GLint*)&last_blend_src_alpha);
+    GLenum last_blend_dst_alpha; glGetIntegerv(GL_BLEND_DST_ALPHA, (GLint*)&last_blend_dst_alpha);
+    GLenum last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, (GLint*)&last_blend_equation_rgb);
+    GLenum last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, (GLint*)&last_blend_equation_alpha);
+    GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
+    GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
+    GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
+    GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
+
+    // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, polygon fill
+    glEnable(GL_BLEND);
+    glBlendEquation(GL_FUNC_ADD);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_DEPTH_TEST);
+    glEnable(GL_SCISSOR_TEST);
+    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+
+    // Setup viewport, orthographic projection matrix
+    glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
+    const float ortho_projection[4][4] =
+    {
+        { 2.0f/io.DisplaySize.x, 0.0f,                   0.0f, 0.0f },
+        { 0.0f,                  2.0f/-io.DisplaySize.y, 0.0f, 0.0f },
+        { 0.0f,                  0.0f,                  -1.0f, 0.0f },
+        {-1.0f,                  1.0f,                   0.0f, 1.0f },
+    };
+    glUseProgram(g_ShaderHandle);
+    glUniform1i(g_AttribLocationTex, 0);
+    glUniformMatrix4fv(g_AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]);
+    glBindSampler(0, 0); // Rely on combined texture/sampler state.
+
+    // Recreate the VAO every time 
+    // (This is to easily allow multiple GL contexts. VAO are not shared among GL contexts, and we don't track creation/deletion of windows so we don't have an obvious key to use to cache them.)
+    GLuint vao_handle = 0;
+    glGenVertexArrays(1, &vao_handle);
+    glBindVertexArray(vao_handle);
+    glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
+    glEnableVertexAttribArray(g_AttribLocationPosition);
+    glEnableVertexAttribArray(g_AttribLocationUV);
+    glEnableVertexAttribArray(g_AttribLocationColor);
+    glVertexAttribPointer(g_AttribLocationPosition, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, pos));
+    glVertexAttribPointer(g_AttribLocationUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, uv));
+    glVertexAttribPointer(g_AttribLocationColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, col));
+
+    // Draw
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
+    {
+        const ImDrawList* cmd_list = draw_data->CmdLists[n];
+        const ImDrawIdx* idx_buffer_offset = 0;
+
+        glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
+        glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert), (const GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW);
+
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle);
+        glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx), (const GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW);
+
+        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                pcmd->UserCallback(cmd_list, pcmd);
+            }
+            else
+            {
+                glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId);
+                glScissor((int)pcmd->ClipRect.x, (int)(fb_height - pcmd->ClipRect.w), (int)(pcmd->ClipRect.z - pcmd->ClipRect.x), (int)(pcmd->ClipRect.w - pcmd->ClipRect.y));
+                glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
+            }
+            idx_buffer_offset += pcmd->ElemCount;
+        }
+    }
+    glDeleteVertexArrays(1, &vao_handle);
+
+    // Restore modified GL state
+    glUseProgram(last_program);
+    glBindTexture(GL_TEXTURE_2D, last_texture);
+    glBindSampler(0, last_sampler);
+    glActiveTexture(last_active_texture);
+    glBindVertexArray(last_vertex_array);
+    glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
+    glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
+    glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha);
+    if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
+    if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
+    if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);
+    if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST);
+    glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]);
+    glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
+    glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
+}
+
+static const char* ImGui_ImplSdlGL3_GetClipboardText(void*)
+{
+    return SDL_GetClipboardText();
+}
+
+static void ImGui_ImplSdlGL3_SetClipboardText(void*, const char* text)
+{
+    SDL_SetClipboardText(text);
+}
+
+// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
+// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
+// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
+// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
+bool ImGui_ImplSdlGL3_ProcessEvent(SDL_Event* event)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    switch (event->type)
+    {
+    case SDL_MOUSEWHEEL:
+        {
+            if (event->wheel.x > 0) io.MouseWheelH += 1;
+            if (event->wheel.x < 0) io.MouseWheelH -= 1;
+            if (event->wheel.y > 0) io.MouseWheel += 1;
+            if (event->wheel.y < 0) io.MouseWheel -= 1;
+            return true;
+        }
+    case SDL_MOUSEBUTTONDOWN:
+        {
+            if (event->button.button == SDL_BUTTON_LEFT) g_MousePressed[0] = true;
+            if (event->button.button == SDL_BUTTON_RIGHT) g_MousePressed[1] = true;
+            if (event->button.button == SDL_BUTTON_MIDDLE) g_MousePressed[2] = true;
+            return true;
+        }
+    case SDL_TEXTINPUT:
+        {
+            io.AddInputCharactersUTF8(event->text.text);
+            return true;
+        }
+    case SDL_KEYDOWN:
+    case SDL_KEYUP:
+        {
+            int key = event->key.keysym.scancode;
+            IM_ASSERT(key >= 0 && key < IM_ARRAYSIZE(io.KeysDown));
+            io.KeysDown[key] = (event->type == SDL_KEYDOWN);
+            io.KeyShift = ((SDL_GetModState() & KMOD_SHIFT) != 0);
+            io.KeyCtrl = ((SDL_GetModState() & KMOD_CTRL) != 0);
+            io.KeyAlt = ((SDL_GetModState() & KMOD_ALT) != 0);
+            io.KeySuper = ((SDL_GetModState() & KMOD_GUI) != 0);
+            return true;
+        }
+    }
+    return false;
+}
+
+void ImGui_ImplSdlGL3_CreateFontsTexture()
+{
+    // Build texture atlas
+    ImGuiIO& io = ImGui::GetIO();
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bits for OpenGL3 demo because it is more likely to be compatible with user's existing shader.
+
+    // Upload texture to graphics system
+    GLint last_texture;
+    glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    glGenTextures(1, &g_FontTexture);
+    glBindTexture(GL_TEXTURE_2D, g_FontTexture);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
+    // Store our identifier
+    io.Fonts->TexID = (void *)(intptr_t)g_FontTexture;
+
+    // Restore state
+    glBindTexture(GL_TEXTURE_2D, last_texture);
+}
+
+bool ImGui_ImplSdlGL3_CreateDeviceObjects()
+{
+    // Backup GL state
+    GLint last_texture, last_array_buffer, last_vertex_array;
+    glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
+    glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
+
+    const GLchar *vertex_shader =
+        "uniform mat4 ProjMtx;\n"
+        "in vec2 Position;\n"
+        "in vec2 UV;\n"
+        "in vec4 Color;\n"
+        "out vec2 Frag_UV;\n"
+        "out vec4 Frag_Color;\n"
+        "void main()\n"
+        "{\n"
+        "	Frag_UV = UV;\n"
+        "	Frag_Color = Color;\n"
+        "	gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
+        "}\n";
+
+    const GLchar* fragment_shader =
+        "uniform sampler2D Texture;\n"
+        "in vec2 Frag_UV;\n"
+        "in vec4 Frag_Color;\n"
+        "out vec4 Out_Color;\n"
+        "void main()\n"
+        "{\n"
+        "	Out_Color = Frag_Color * texture( Texture, Frag_UV.st);\n"
+        "}\n";
+
+    const GLchar* vertex_shader_with_version[2] = { g_GlslVersion, vertex_shader };
+    const GLchar* fragment_shader_with_version[2] = { g_GlslVersion, fragment_shader };
+
+    g_ShaderHandle = glCreateProgram();
+    g_VertHandle = glCreateShader(GL_VERTEX_SHADER);
+    g_FragHandle = glCreateShader(GL_FRAGMENT_SHADER);
+    glShaderSource(g_VertHandle, 2, vertex_shader_with_version, NULL);
+    glShaderSource(g_FragHandle, 2, fragment_shader_with_version, NULL);
+    glCompileShader(g_VertHandle);
+    glCompileShader(g_FragHandle);
+    glAttachShader(g_ShaderHandle, g_VertHandle);
+    glAttachShader(g_ShaderHandle, g_FragHandle);
+    glLinkProgram(g_ShaderHandle);
+
+    g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture");
+    g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx");
+    g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position");
+    g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV");
+    g_AttribLocationColor = glGetAttribLocation(g_ShaderHandle, "Color");
+
+    glGenBuffers(1, &g_VboHandle);
+    glGenBuffers(1, &g_ElementsHandle);
+
+    ImGui_ImplSdlGL3_CreateFontsTexture();
+
+    // Restore modified GL state
+    glBindTexture(GL_TEXTURE_2D, last_texture);
+    glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
+    glBindVertexArray(last_vertex_array);
+
+    return true;
+}
+
+void    ImGui_ImplSdlGL3_InvalidateDeviceObjects()
+{
+    if (g_VboHandle) glDeleteBuffers(1, &g_VboHandle);
+    if (g_ElementsHandle) glDeleteBuffers(1, &g_ElementsHandle);
+    g_VboHandle = g_ElementsHandle = 0;
+
+    if (g_ShaderHandle && g_VertHandle) glDetachShader(g_ShaderHandle, g_VertHandle);
+    if (g_VertHandle) glDeleteShader(g_VertHandle);
+    g_VertHandle = 0;
+
+    if (g_ShaderHandle && g_FragHandle) glDetachShader(g_ShaderHandle, g_FragHandle);
+    if (g_FragHandle) glDeleteShader(g_FragHandle);
+    g_FragHandle = 0;
+
+    if (g_ShaderHandle) glDeleteProgram(g_ShaderHandle);
+    g_ShaderHandle = 0;
+
+    if (g_FontTexture)
+    {
+        glDeleteTextures(1, &g_FontTexture);
+        ImGui::GetIO().Fonts->TexID = 0;
+        g_FontTexture = 0;
+    }
+}
+
+bool    ImGui_ImplSdlGL3_Init(SDL_Window* window, const char* glsl_version)
+{
+    // Store GL version string so we can refer to it later in case we recreate shaders.
+    if (glsl_version == NULL)
+        glsl_version = "#version 150";
+    IM_ASSERT((int)strlen(glsl_version) + 2 < IM_ARRAYSIZE(g_GlslVersion));
+    strcpy(g_GlslVersion, glsl_version);
+    strcat(g_GlslVersion, "\n");
+
+    // Setup back-end capabilities flags
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;   // We can honor GetMouseCursor() values (optional)
+
+    // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
+    io.KeyMap[ImGuiKey_Tab] = SDL_SCANCODE_TAB;
+    io.KeyMap[ImGuiKey_LeftArrow] = SDL_SCANCODE_LEFT;
+    io.KeyMap[ImGuiKey_RightArrow] = SDL_SCANCODE_RIGHT;
+    io.KeyMap[ImGuiKey_UpArrow] = SDL_SCANCODE_UP;
+    io.KeyMap[ImGuiKey_DownArrow] = SDL_SCANCODE_DOWN;
+    io.KeyMap[ImGuiKey_PageUp] = SDL_SCANCODE_PAGEUP;
+    io.KeyMap[ImGuiKey_PageDown] = SDL_SCANCODE_PAGEDOWN;
+    io.KeyMap[ImGuiKey_Home] = SDL_SCANCODE_HOME;
+    io.KeyMap[ImGuiKey_End] = SDL_SCANCODE_END;
+    io.KeyMap[ImGuiKey_Insert] = SDL_SCANCODE_INSERT;
+    io.KeyMap[ImGuiKey_Delete] = SDL_SCANCODE_DELETE;
+    io.KeyMap[ImGuiKey_Backspace] = SDL_SCANCODE_BACKSPACE;
+    io.KeyMap[ImGuiKey_Space] = SDL_SCANCODE_SPACE;
+    io.KeyMap[ImGuiKey_Enter] = SDL_SCANCODE_RETURN;
+    io.KeyMap[ImGuiKey_Escape] = SDL_SCANCODE_ESCAPE;
+    io.KeyMap[ImGuiKey_A] = SDL_SCANCODE_A;
+    io.KeyMap[ImGuiKey_C] = SDL_SCANCODE_C;
+    io.KeyMap[ImGuiKey_V] = SDL_SCANCODE_V;
+    io.KeyMap[ImGuiKey_X] = SDL_SCANCODE_X;
+    io.KeyMap[ImGuiKey_Y] = SDL_SCANCODE_Y;
+    io.KeyMap[ImGuiKey_Z] = SDL_SCANCODE_Z;
+
+    io.SetClipboardTextFn = ImGui_ImplSdlGL3_SetClipboardText;
+    io.GetClipboardTextFn = ImGui_ImplSdlGL3_GetClipboardText;
+    io.ClipboardUserData = NULL;
+
+    g_MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
+    g_MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
+    g_MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
+    g_MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
+    g_MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
+    g_MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
+    g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
+
+#ifdef _WIN32
+    SDL_SysWMinfo wmInfo;
+    SDL_VERSION(&wmInfo.version);
+    SDL_GetWindowWMInfo(window, &wmInfo);
+    io.ImeWindowHandle = wmInfo.info.win.window;
+#else
+    (void)window;
+#endif
+
+    return true;
+}
+
+void ImGui_ImplSdlGL3_Shutdown()
+{
+    // Destroy SDL mouse cursors
+    for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
+        SDL_FreeCursor(g_MouseCursors[cursor_n]);
+    memset(g_MouseCursors, 0, sizeof(g_MouseCursors));
+
+    // Destroy OpenGL objects
+    ImGui_ImplSdlGL3_InvalidateDeviceObjects();
+}
+
+void ImGui_ImplSdlGL3_NewFrame(SDL_Window* window)
+{
+    if (!g_FontTexture)
+        ImGui_ImplSdlGL3_CreateDeviceObjects();
+
+    ImGuiIO& io = ImGui::GetIO();
+
+    // Setup display size (every frame to accommodate for window resizing)
+    int w, h;
+    int display_w, display_h;
+    SDL_GetWindowSize(window, &w, &h);
+    SDL_GL_GetDrawableSize(window, &display_w, &display_h);
+    io.DisplaySize = ImVec2((float)w, (float)h);
+    io.DisplayFramebufferScale = ImVec2(w > 0 ? ((float)display_w / w) : 0, h > 0 ? ((float)display_h / h) : 0);
+
+    // Setup time step (we don't use SDL_GetTicks() because it is using millisecond resolution)
+    static Uint64 frequency = SDL_GetPerformanceFrequency();
+    Uint64 current_time = SDL_GetPerformanceCounter();
+    io.DeltaTime = g_Time > 0 ? (float)((double)(current_time - g_Time) / frequency) : (float)(1.0f / 60.0f);
+    g_Time = current_time;
+
+    // Setup mouse inputs (we already got mouse wheel, keyboard keys & characters from our event handler)
+    int mx, my;
+    Uint32 mouse_buttons = SDL_GetMouseState(&mx, &my);
+    io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
+    io.MouseDown[0] = g_MousePressed[0] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0;  // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
+    io.MouseDown[1] = g_MousePressed[1] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
+    io.MouseDown[2] = g_MousePressed[2] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
+    g_MousePressed[0] = g_MousePressed[1] = g_MousePressed[2] = false;
+
+    // We need to use SDL_CaptureMouse() to easily retrieve mouse coordinates outside of the client area. This is only supported from SDL 2.0.4 (released Jan 2016)
+#if (SDL_MAJOR_VERSION >= 2) && (SDL_MINOR_VERSION >= 0) && (SDL_PATCHLEVEL >= 4)   
+    if ((SDL_GetWindowFlags(window) & (SDL_WINDOW_MOUSE_FOCUS | SDL_WINDOW_MOUSE_CAPTURE)) != 0)
+        io.MousePos = ImVec2((float)mx, (float)my);
+    bool any_mouse_button_down = false;
+    for (int n = 0; n < IM_ARRAYSIZE(io.MouseDown); n++)
+        any_mouse_button_down |= io.MouseDown[n];
+    if (any_mouse_button_down && (SDL_GetWindowFlags(window) & SDL_WINDOW_MOUSE_CAPTURE) == 0)
+        SDL_CaptureMouse(SDL_TRUE);
+    if (!any_mouse_button_down && (SDL_GetWindowFlags(window) & SDL_WINDOW_MOUSE_CAPTURE) != 0)
+        SDL_CaptureMouse(SDL_FALSE);
+#else
+    if ((SDL_GetWindowFlags(window) & SDL_WINDOW_INPUT_FOCUS) != 0)
+        io.MousePos = ImVec2((float)mx, (float)my);
+#endif
+
+    // Update OS/hardware mouse cursor if imgui isn't drawing a software cursor
+    if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) == 0)
+    {
+        ImGuiMouseCursor cursor = ImGui::GetMouseCursor();
+        if (io.MouseDrawCursor || cursor == ImGuiMouseCursor_None)
+        {
+            SDL_ShowCursor(0);
+        }
+        else
+        {
+            SDL_SetCursor(g_MouseCursors[cursor] ? g_MouseCursors[cursor] : g_MouseCursors[ImGuiMouseCursor_Arrow]);
+            SDL_ShowCursor(1);
+        }
+    }
+
+    // Start the frame. This call will update the io.WantCaptureMouse, io.WantCaptureKeyboard flag that you can use to dispatch inputs (or not) to your application.
+    ImGui::NewFrame();
+}

src/imgui_impl_sdl_gl3.h

@@ -0,0 +1,26 @@
+// ImGui SDL2 binding with OpenGL3
+// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
+// (GL3W is a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc.)
+
+// Implemented features:
+//  [X] User texture binding. Cast 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+// Missing features:
+//  [ ] SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
+
+// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
+// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
+// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// https://github.com/ocornut/imgui
+
+struct SDL_Window;
+typedef union SDL_Event SDL_Event;
+
+IMGUI_API bool        ImGui_ImplSdlGL3_Init(SDL_Window* window, const char* glsl_version = NULL);
+IMGUI_API void        ImGui_ImplSdlGL3_Shutdown();
+IMGUI_API void        ImGui_ImplSdlGL3_NewFrame(SDL_Window* window);
+IMGUI_API void        ImGui_ImplSdlGL3_RenderDrawData(ImDrawData* draw_data);
+IMGUI_API bool        ImGui_ImplSdlGL3_ProcessEvent(SDL_Event* event);
+
+// Use if you want to reset your rendering device without losing ImGui state.
+IMGUI_API void        ImGui_ImplSdlGL3_InvalidateDeviceObjects();
+IMGUI_API bool        ImGui_ImplSdlGL3_CreateDeviceObjects();

testClient/CMakeLists.txt

@@ -1,41 +0,0 @@
-cmake_minimum_required(VERSION 3.0)
-project(DarkRP2D_TEST_CLIENT)
-set (CMAKE_CXX_STANDARD 11)
-include(ExternalProject)
-
-if(NOT CMAKE_BUILD_TYPE) 
-    set(CMAKE_BUILD_TYPE RELEASE)
-	add_definitions(-DNDEBUG)
-endif(NOT CMAKE_BUILD_TYPE)
-
-MESSAGE( STATUS "PROJECT_SOURCE_DIR: " ${PROJECT_SOURCE_DIR} )
-MESSAGE( STATUS "DarkRP2D_TEST_CLIENT_SOURCE_DIR: " ${DarkRP2D_TEST_CLIENT_SOURCE_DIR} )
-
-set(DarkRP2D_EXTERNAL_DIR ${DarkRP2D_TEST_CLIENT_SOURCE_DIR}/../external)
-set(SDL2_net_DIR ${DarkRP2D_EXTERNAL_DIR}/SDL2_net-2.0.1)
-set(SDL2_DIR ${DarkRP2D_EXTERNAL_DIR}/SDL2-2.0.8)
-
-#Libs
-
-find_package(SDL2 REQUIRED CONFIG)
-include_directories(${SDL2_INCLUDE_DIRS})
-
-find_package(SDL2_net REQUIRED CONFIG)
-include_directories(${SDL2_NET_INCLUDE_DIRS})
-
-MESSAGE( STATUS "SDL2 Lib: " ${SDL2_LIBRARIES}  )
-MESSAGE( STATUS "SDL2_NET Lib: " ${SDL2_NET_LIBRARIES}  )
-
-file(GLOB_RECURSE DarkRP2D_TEST_CLIENT_SOURCE_FILES ${DarkRP2D_TEST_CLIENT_SOURCE_DIR}/src/*.cpp)
-
-add_executable(DarkRP2DTestClient ${DarkRP2D_TEST_CLIENT_SOURCE_FILES})
-
-target_link_libraries(DarkRP2DTestClient   ${SDL2_LIBRARIES} 
-                                        ${SDL2_NET_LIBRARIES} )
-
-add_custom_target(CopyBinaries
-	COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_DLL} ${CMAKE_BINARY_DIR}
-    COMMAND ${CMAKE_COMMAND} -E copy ${SDL2_NET_DLL} ${CMAKE_BINARY_DIR}
-)
-
-add_dependencies(DarkRP2DTestClient CopyBinaries)

testClient/src/Client.cpp

@@ -1,87 +0,0 @@
-#include "Client.h"
-#include "Constants.h"
-#include "Protocoll.h"
-
-#include <iostream>
-#include <thread>
-
-Client::Client(std::string _serverIP, int port) : connected(new Connected(this)),
-                                                  connecting(new Connecting(this)),
-                                                  disconnected(new Disconnected(this))
-{
-
-    udpSocket = SDLNet_UDP_Open(constants::CLIENT_PORT);
-
-    if (udpSocket == nullptr)
-    {
-        std::cout << "\tSDLNet_UDP_Open failed : " << SDLNet_GetError() << std::endl;
-    }
-
-    // Set IP and port number with correct endianess
-    if (SDLNet_ResolveHost(&serverIP, _serverIP.c_str(), port) == -1)
-    {
-        std::cout << "\tSDLNet_ResolveHost failed : " << SDLNet_GetError() << std::endl;
-    }
-
-    connectionRequest = SDLNet_AllocPacket(512);
-
-    if (connectionRequest == nullptr)
-    {
-        std::cout << "\tSDLNet_AllocPacket failed : " << SDLNet_GetError() << std::endl;
-    }
-    ConnectionRequest conReq = ConnectionRequest();
-    memcpy(connectionRequest->data, &conReq, sizeof(ConnectionRequest));
-    connectionRequest->len = sizeof(ConnectionRequest);
-
-    receivedPacket = SDLNet_AllocPacket(512);
-
-    if (receivedPacket == nullptr)
-    {
-        std::cout << "\tSDLNet_AllocPacket failed : " << SDLNet_GetError() << std::endl;
-    }
-
-    this->setClientState(connecting);
-}
-
-void Client::setClientState(ClientState *state)
-{
-    std::cout << "State changed!" << std::endl;
-    currentState = state;
-}
-
-void Client::update(unsigned int delta)
-{
-    currentState->update(delta);
-    using namespace std::chrono_literals;
-    std::this_thread::sleep_for(2s);
-}
-
-bool Client::sendConnectionRequest(IPaddress dest)
-{
-    connectionRequest->address.host = dest.host;
-    connectionRequest->address.port = dest.port;
-    return this->sendPacket(*connectionRequest);
-}
-
-bool Client::sendPacket(UDPpacket &packet)
-{
-    // Send
-    // SDLNet_UDP_Send returns number of packets sent. 0 means error
-    if (SDLNet_UDP_Send(this->udpSocket, -1, &packet) == 0)
-    {
-        std::cout << "\tSDLNet_UDP_Send failed : " << SDLNet_GetError() << "\n"
-                  << "==========================================================================================================\n";
-        return false;
-    }
-    return true;
-}
-
-Client::~Client()
-{
-    delete connected;
-    delete connecting;
-    delete disconnected;
-    SDLNet_FreePacket(connectionRequest);
-    SDLNet_FreePacket(receivedPacket);
-    SDLNet_UDP_Close(udpSocket);
-}

testClient/src/Client.h

@@ -1,37 +0,0 @@
-#pragma once
-
-#include <SDL_net.h>
-#include <string>
-
-class Client;
-
-#include "ClientStates.h"
-
-
-class Client {
-    public:
-    Client(std::string serverIP, int port);
-    ~Client();
-    
-    Client(const Client&) = delete;
-
-    void setClientState(ClientState *state);
-
-    void update(unsigned int delta);
-
-
-    bool sendConnectionRequest(IPaddress dest);
-    bool sendPacket(UDPpacket &packet);
-
-    UDPsocket udpSocket;
-    IPaddress serverIP;
-
-    UDPpacket *connectionRequest;
-    UDPpacket *receivedPacket;
-
-    ClientState *currentState;
-
-    Connected *connected;
-    Connecting *connecting;
-    Disconnected *disconnected;
-};

testClient/src/ClientStates.cpp

@@ -1,40 +0,0 @@
-#include "ClientStates.h"
-
-#include "Protocoll.h"
-
-#include <iostream>
-
-void Connecting::update(unsigned int delta)
-{
-        std::cout << "Connecting.. (Sending Request)" << std::endl;
-    m_client->sendConnectionRequest(m_client->serverIP);
-    if (SDLNet_UDP_Recv(m_client->udpSocket, m_client->receivedPacket))
-    {
-        std::cout << "Something received.." << std::endl;
-        switch (*(m_client->receivedPacket->data))
-        {
-        case CONNECTION_ACCEPTED:
-        {
-            int index = ((ConnectionAccepted *)(m_client->receivedPacket->data))->index;
-            std::cout << "Server accepted Connection! My Index ist: " << index << std::endl;
-            m_client->setClientState(m_client->connected);
-        }
-        break;
-        case CONNECTION_DENIED:
-            std::cout << "Server denied Connection!" << std::endl;
-            m_client->setClientState(m_client->disconnected);
-        default:
-            break;
-        }
-    }
-}
-
-void Connected::update(unsigned int delta)
-{
-    std::cout << "I AM IN CONNECTED STATE!" << std::endl;
-}
-
-void Disconnected::update(unsigned int delta)
-{
-    std::cout << "I AM IN DISCONNECTED STATE!" << std::endl;
-}

testClient/src/ClientStates.h

@@ -1,47 +0,0 @@
-#pragma once
-
-class ClientState;
-
-class Connecting;
-class Connected;
-class Disconnected;
-
-#include "Client.h"
-
-class ClientState
-{
-  public:
-    virtual void update(unsigned int delta) = 0;
-};
-
-class Connecting : public ClientState {
-  public:
-    Connecting(Client *client) : m_client(client) {}
-
-    virtual void update(unsigned int delta) override;
-
-  private:
-    Client *m_client;
-};
-
-class Connected : public ClientState
-{
-  public:
-    Connected(Client *client) : m_client(client) {}
-
-    virtual void update(unsigned int delta) override;
-
-  private:
-    Client *m_client;
-};
-
-class Disconnected : public ClientState
-{
-  public:
-    Disconnected(Client *client) : m_client(client) {}
-
-    virtual void update(unsigned int delta) override;
-
-  private:
-    Client *m_client;
-};

testClient/src/Constants.h

@@ -1,8 +0,0 @@
-#pragma once
-
-namespace constants {
-
-    const int CLIENT_PORT = 9999;
-
-}
-

testClient/src/Protocoll.h

@@ -1,22 +0,0 @@
-#pragma once
-
-#define CONNECTION_REQUEST 0x01
-#define CONNECTION_ACCEPTED 0x02
-#define CONNECTION_DENIED 0x03
-
-struct ConnectionRequest {
-    ConnectionRequest() : type(CONNECTION_REQUEST) {}
-    char type = CONNECTION_REQUEST;
-};
-
-struct ConnectionAccepted {
-    ConnectionAccepted() : type(CONNECTION_ACCEPTED) {}
-    char type;
-    int index;
-};
-
-struct ConnectionDenied {
-    ConnectionDenied() : type(CONNECTION_DENIED) {}
-    char type;
-};
-

testClient/src/TestClient.cpp

@@ -1,33 +0,0 @@
-#include <SDL_net.h>
-#include <iostream>
-
-#include "Client.h"
-
-int main(int argc, char *argv[])
-{
-    std::cout << "Starting DarkRP2D Client..." << std::endl;
-
-    if (SDLNet_Init() < 0)
-    {
-        fprintf(stderr, "SDLNet_Init: %s\n", SDLNet_GetError());
-        exit(EXIT_FAILURE);
-    }
-
-    bool clientQuit = false;
-    {
-        Client client("127.0.0.1",12000);
-        unsigned int lastTime = SDL_GetTicks(), currentTime, elapsedTime;
-        while (!clientQuit)
-        {
-            currentTime = SDL_GetTicks();
-            elapsedTime = currentTime - lastTime;
-            lastTime = currentTime;
-            client.update(elapsedTime);
-        }
-    }
-
-    SDLNet_Quit();
-    std::cout << "Client closed!" << std::endl;
-
-    return EXIT_SUCCESS;
-}