Fix Win32 window creation

src/game/window/win32_window.cpp

@@ -24,60 +24,80 @@ SOFTWARE.
 
 #include "game/window/win32_window.hpp"
 
+#include <atomic>
+
 #include "common/logger.hpp"
 
 using namespace polygun::window;
 
 static HINSTANCE g_instance;
+static std::atomic<Win32Window*> g_current_window = nullptr;
 
 extern int main(int argc, char** args);
 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev_inst, PTSTR cmd_line, int show_cmd) {
 	g_instance = inst;
-	main(1, &cmd_line);
+	return main(1, &cmd_line);
+}
+
+static LRESULT CALLBACK window_proc(HWND window_handle, UINT message, WPARAM param1, LPARAM param2) {
+	LRESULT result = 0;
+	Event event;
+	switch(message) {
+	case WM_SIZE:
+		event.m_type = EventType::EVENT_TYPE_WINDOW_RESIZE;
+		event.m_data.m_window_event.m_width = LOWORD(param2);
+		event.m_data.m_window_event.m_height = HIWORD(param2);
+		g_current_window.load()->push_event(event);
+		break;
+	default:
+		result = DefWindowProc(window_handle, message, param1, param2);
+		break;
+	}
+	return result;
 }
 
 Win32Window::Win32Window(const std::string& title, unsigned width, unsigned height) :
 	m_window_handle(),
-	m_message_thread(),
-	m_access_mutex()
+	m_window_thread()
 {
-	WNDCLASSEX window_class;
-	window_class.cbSize = sizeof(window_class);
-	window_class.style = 0;
-	window_class.lpfnWndProc = DefWindowProc;
-	window_class.cbClsExtra = 0;
-	window_class.hInstance = g_instance;
-	const TCHAR* class_name = title.c_str();
-	window_class.lpszClassName = class_name;
-	if(!RegisterClassEx(&window_class))
-		LOG_FATAL("Failed to register window class");
-
-	m_window_handle = CreateWindowEx(WS_EX_LEFT, class_name, nullptr, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, nullptr, nullptr, g_instance, nullptr);
-	if(!m_window_handle)
-		LOG_FATAL("Failed to create window");
-
-	ShowWindow(m_window_handle, false);
-	UpdateWindow(m_window_handle);
-	m_message_thread.reset(new std::thread(&Win32Window::message_thread_func, this));
+	g_current_window = this;
+	m_window_thread.reset(new std::thread(&Win32Window::window_thread_func, this, title, width, height));
 }
 
 Win32Window::~Win32Window() {
-	if(m_message_thread->joinable())
-		m_message_thread->join();
+	if(m_window_thread->joinable())
+		m_window_thread->join();
 }
 
 size_t Win32Window::poll_events(Event& event) {
 	return Window::poll_events(event);
 }
 
-void Win32Window::message_thread_func() {
-	MSG msg;
-	while(GetMessage(&msg, m_window_handle, 0, 0)) {
+void Win32Window::window_thread_func(const std::string& title, unsigned width, unsigned height) {
+	WNDCLASS window_class={0};
+	window_class.lpfnWndProc = window_proc;
+	window_class.hInstance = g_instance;
+	const char class_name[] = "polygun";
+	window_class.lpszClassName = class_name;
+	if(!RegisterClass(&window_class))
+		LOG_FATAL("Failed to register window class (error code: %d)", GetLastError());
+
+	m_window_handle = CreateWindowEx(0, class_name, title.c_str(), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, nullptr, nullptr, g_instance, nullptr);
+	if(!m_window_handle)
+		LOG_FATAL("Failed to create window (error code: %d)", GetLastError());
+
+	ShowWindow(m_window_handle, true);
+
+	MSG msg={0};
+	while(GetMessage(&msg, m_window_handle, 0, 0)>0) {
+		g_current_window = this;
 		TranslateMessage(&msg);
 		DispatchMessage(&msg);
 	}
-	m_access_mutex.lock();
+
+	acquire();
 	Event close_event;
 	close_event.m_type = EventType::EVENT_TYPE_WINDOW_CLOSE;
 	m_event_queue.push_back(close_event);
+	release();
 }

src/game/window/win32_window.hpp

@@ -28,7 +28,6 @@ SOFTWARE.
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <thread>
-#include <mutex>
 #include <memory>
 
 namespace polygun::window {
@@ -41,10 +40,9 @@ namespace polygun::window {
 
 	private:
 		HWND m_window_handle;
-		std::unique_ptr<std::thread> m_message_thread;
-		std::mutex m_access_mutex;
+		std::unique_ptr<std::thread> m_window_thread;
 
 	private:
-		void message_thread_func();
+		void window_thread_func(const std::string& title, unsigned width, unsigned height);
 	};
 }

src/game/window/window.cpp

@@ -24,12 +24,38 @@ SOFTWARE.
 
 #include "game/window/window.hpp"
 
+#include <config.hpp>
+#if defined(WINDOW_WIN32)
+#include "game/window/win32_window.hpp"
+#endif
+#include "common/logger.hpp"
+
 using namespace polygun::window;
 
+void Window::push_event(const Event& event) {
+	acquire();
+	m_event_queue.push_back(event);
+	release();
+}
+
 size_t Window::poll_events(Event& event) {
+	acquire();
+	size_t result = m_event_queue.size();
 	if(!m_event_queue.empty()) {
 		event = m_event_queue.back();
 		m_event_queue.pop_back();
 	}
-	return m_event_queue.size();
+	release();
+	return result;
+}
+
+Window* Window::create_window(const std::string& title, unsigned width, unsigned height) {
+#if defined(_WIN32)
+#if defined(WINDOW_WIN32)
+	return new Win32Window(title, width, height);
+#else
+	LOG_FATAL("Win32Window creation is not compiled in");
+	return nullptr;
+#endif
+#endif
 }

src/game/window/window.hpp

@@ -25,21 +25,30 @@ SOFTWARE.
 #ifndef POLYGUN_WINDOW_WINDOW_HPP
 #define POLYGUN_WINDOW_WINDOW_HPP
 
+#include "common/thread_safe.hpp"
+
 #include <vector>
+#include <string>
 
 #include "game/window/event.hpp"
 
 namespace polygun::window {
 
-	class Window {
+	class Window : public utils::ThreadSafe{
 	public:
 		Window() = default;
 		virtual ~Window() {}
 
+		void push_event(const Event& event);
+
 		virtual size_t poll_events(Event& event);
 
+		static Window* create_window(const std::string& title, unsigned width, unsigned height);
+
 	protected:
 		std::vector<Event> m_event_queue;
+		int m_mouse_x;
+		int m_mouse_y;
 	};
 }
 

src/main.cpp

@@ -11,6 +11,7 @@
 #include "common/command_arguments_parser.hpp"
 #include "common/logger.hpp"
 #include "common/locale/translation_manager.hpp"
+#include "game/window/window.hpp"
 
 int main(int argc, char** argv) {
 	polygun::utils::Logger::create(false, true);
@@ -54,8 +55,18 @@ int main(int argc, char** argv) {
 			direct_join->m_host_server = false;
 		}
 		polygun::audio::init();
-		polygun::engine::Engine engine;
-		engine.init(direct_join);
+		//polygun::engine::Engine engine;
+		//engine.init(direct_join);
+		polygun::window::Window* wnd = polygun::window::Window::create_window("PolyGun", 800, 600);
+		polygun::window::Event event;
+		bool running = true;
+		while(running) {
+			while(wnd->poll_events(event)>0) {
+				if(event.m_type==polygun::window::EventType::EVENT_TYPE_WINDOW_CLOSE)
+					running = false;
+			}
+		}
+		delete wnd;
 		polygun::audio::cleanup();
 		if(direct_join)
 			delete direct_join;