1 files changed, 163 insertions, 0 deletions
diff --git a/src/game/client/main_menu.cc b/src/game/client/main_menu.cc
new file mode 100644
index 0000000..39763ec
--- /dev/null
+++ b/src/game/client/main_menu.cc
@@ -0,0 +1,163 @@
+#include "client/pch.hh"
+
+#include "client/main_menu.hh"
+
+#include "core/constexpr.hh"
+#include "core/resource.hh"
+#include "core/version.hh"
+
+#include "client/glfw.hh"
+#include "client/globals.hh"
+#include "client/gui_screen.hh"
+#include "client/language.hh"
+#include "client/session.hh"
+#include "client/texture_gui.hh"
+#include "client/window_title.hh"
+
+constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
+
+static std::string str_play;
+static std::string str_resume;
+static std::string str_settings;
+static std::string str_leave;
+static std::string str_quit;
+
+static resource_ptr<TextureGUI> title;
+static float title_aspect;
+
+static void on_glfw_key(const GlfwKeyEvent& event)
+{
+    if(session::is_ingame() && (event.key == GLFW_KEY_ESCAPE) && (event.action == GLFW_PRESS)) {
+        if(globals::gui_screen == GUI_SCREEN_NONE) {
+            globals::gui_screen = GUI_MAIN_MENU;
+            return;
+        }
+
+        if(globals::gui_screen == GUI_MAIN_MENU) {
+            globals::gui_screen = GUI_SCREEN_NONE;
+            return;
+        }
+    }
+}
+
+static void on_language_set(const LanguageSetEvent& event)
+{
+    str_play = language::resolve_gui("main_menu.play");
+    str_resume = language::resolve_gui("main_menu.resume");
+    str_settings = language::resolve("main_menu.settings");
+    str_leave = language::resolve("main_menu.leave");
+    str_quit = language::resolve("main_menu.quit");
+}
+
+void main_menu::init(void)
+{
+    title = resource::load<TextureGUI>("textures/gui/menu_title.png", TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T);
+
+    if(title == nullptr) {
+        spdlog::critical("main_menu: texture load failed");
+        std::terminate();
+    }
+
+    if(title->size.x > title->size.y) {
+        title_aspect = static_cast<float>(title->size.x) / static_cast<float>(title->size.y);
+    } else {
+        title_aspect = static_cast<float>(title->size.y) / static_cast<float>(title->size.x);
+    }
+
+    globals::dispatcher.sink<GlfwKeyEvent>().connect<&on_glfw_key>();
+    globals::dispatcher.sink<LanguageSetEvent>().connect<&on_language_set>();
+}
+
+void main_menu::deinit(void)
+{
+    title = nullptr;
+}
+
+void main_menu::layout(void)
+{
+    const auto viewport = ImGui::GetMainViewport();
+    const auto window_start = ImVec2(0.0f, viewport->Size.y * 0.15f);
+    const auto window_size = ImVec2(viewport->Size.x, viewport->Size.y);
+
+    ImGui::SetNextWindowPos(window_start);
+    ImGui::SetNextWindowSize(window_size);
+
+    if(ImGui::Begin("###main_menu", nullptr, WINDOW_FLAGS)) {
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0.0f, 2.0f * globals::gui_scale));
+
+        if(session::is_ingame()) {
+            ImGui::Dummy(ImVec2(0.0f, 32.0f * globals::gui_scale));
+        } else {
+            auto reference_height = 0.225f * window_size.y;
+            auto image_width = vx::min(window_size.x, reference_height * title_aspect);
+            auto image_height = image_width / title_aspect;
+            ImGui::SetCursorPosX(0.5f * (window_size.x - image_width));
+            ImGui::Image(title->handle, ImVec2(image_width, image_height));
+        }
+
+        ImGui::Dummy(ImVec2(0.0f, 24.0f * globals::gui_scale));
+
+        const float button_width = 240.0f * globals::gui_scale;
+        const float button_xpos = 0.5f * (window_size.x - button_width);
+
+        if(session::is_ingame()) {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_resume.c_str(), ImVec2(button_width, 0.0f))) {
+                globals::gui_screen = GUI_SCREEN_NONE;
+            }
+
+            ImGui::Spacing();
+        } else {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_play.c_str(), ImVec2(button_width, 0.0f))) {
+                globals::gui_screen = GUI_PLAY_MENU;
+            }
+
+            ImGui::Spacing();
+        }
+
+        ImGui::SetCursorPosX(button_xpos);
+
+        if(ImGui::Button(str_settings.c_str(), ImVec2(button_width, 0.0f))) {
+            globals::gui_screen = GUI_SETTINGS;
+        }
+
+        ImGui::Spacing();
+
+        if(session::is_ingame()) {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_leave.c_str(), ImVec2(button_width, 0.0f))) {
+                session::disconnect("protocol.client_disconnect");
+                globals::gui_screen = GUI_PLAY_MENU;
+                window_title::update();
+            }
+
+            ImGui::Spacing();
+        } else {
+            ImGui::SetCursorPosX(button_xpos);
+
+            if(ImGui::Button(str_quit.c_str(), ImVec2(button_width, 0.0f))) {
+                glfwSetWindowShouldClose(globals::window, true);
+            }
+
+            ImGui::Spacing();
+        }
+
+        if(!session::is_ingame()) {
+            const auto& padding = ImGui::GetStyle().FramePadding;
+            const auto& spacing = ImGui::GetStyle().ItemSpacing;
+
+            ImGui::PushFont(globals::font_debug);
+            ImGui::SetCursorScreenPos(ImVec2(padding.x + spacing.x, window_size.y - globals::font_debug->FontSize - padding.y - spacing.y));
+            ImGui::Text("Voxelius %s", project_version_string.c_str());
+            ImGui::PopFont();
+        }
+
+        ImGui::PopStyleVar();
+    }
+
+    ImGui::End();
+}