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#include "client/pch.hh"
#include "client/gui/main_menu.hh"
#include "core/math/constexpr.hh"
#include "core/resource/resource.hh"
#include "core/version.hh"
#include "client/gui/gui_screen.hh"
#include "client/gui/language.hh"
#include "client/gui/window_title.hh"
#include "client/io/glfw.hh"
#include "client/resource/texture_gui.hh"
#include "client/globals.hh"
#include "client/session.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 io::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 gui::LanguageSetEvent& event)
{
str_play = gui::language::resolve_gui("main_menu.play");
str_resume = gui::language::resolve_gui("main_menu.resume");
str_settings = gui::language::resolve("main_menu.settings");
str_leave = gui::language::resolve("main_menu.leave");
str_quit = gui::language::resolve("main_menu.quit");
}
void gui::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<io::GlfwKeyEvent>().connect<&on_glfw_key>();
globals::dispatcher.sink<LanguageSetEvent>().connect<&on_language_set>();
}
void gui::main_menu::shutdown(void)
{
title = nullptr;
}
void gui::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 = glm::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;
gui::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_unscii8, 4.0f);
ImGui::SetCursorScreenPos(ImVec2(padding.x + spacing.x, window_size.y - ImGui::GetFontSize() - padding.y - spacing.y));
ImGui::Text("Voxelius %*s", version::semver.size(), version::semver.data()); // string_view is not always null-terminated
ImGui::PopFont();
}
ImGui::PopStyleVar();
}
ImGui::End();
}
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