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#include "client/pch.hh"
#include "client/gui/splash.hh"
#include "core/io/cmdline.hh"
#include "core/math/constexpr.hh"
#include "core/resource/resource.hh"
#include "core/utils/epoch.hh"
#include "client/gui/gui_screen.hh"
#include "client/gui/language.hh"
#include "client/io/glfw.hh"
#include "client/resource/texture_gui.hh"
#include "client/globals.hh"
constexpr static ImGuiWindowFlags WINDOW_FLAGS = ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoDecoration;
constexpr static int SPLASH_COUNT = 4;
constexpr static std::size_t DELAY_MICROSECONDS = 2000000;
constexpr static const char* SPLASH_PATH = "textures/gui/client_splash.png";
static resource_ptr<TextureGUI> texture;
static float texture_aspect;
static float texture_alpha;
static std::uint64_t end_time;
static std::string current_text;
static void on_glfw_key(const io::GlfwKeyEvent& event)
{
end_time = UINT64_C(0);
}
static void on_glfw_mouse_button(const io::GlfwMouseButtonEvent& event)
{
end_time = UINT64_C(0);
}
static void on_glfw_scroll(const io::GlfwScrollEvent& event)
{
end_time = UINT64_C(0);
}
void gui::client_splash::init(void)
{
if(io::cmdline::contains("nosplash")) {
texture = nullptr;
texture_aspect = 0.0f;
texture_alpha = 0.0f;
return;
}
std::random_device randev;
std::uniform_int_distribution<int> dist(0, SPLASH_COUNT - 1);
texture = resource::load<TextureGUI>(SPLASH_PATH, TEXTURE_GUI_LOAD_CLAMP_S | TEXTURE_GUI_LOAD_CLAMP_T);
texture_aspect = 0.0f;
texture_alpha = 0.0f;
if(texture) {
if(texture->size.x > texture->size.y) {
texture_aspect = static_cast<float>(texture->size.x) / static_cast<float>(texture->size.y);
}
else {
texture_aspect = static_cast<float>(texture->size.y) / static_cast<float>(texture->size.x);
}
texture_alpha = 1.0f;
}
}
void gui::client_splash::init_late(void)
{
if(!texture) {
// We don't have to waste time
// rendering the missing client_splash texture
return;
}
end_time = utils::unix_microseconds() + DELAY_MICROSECONDS;
globals::dispatcher.sink<io::GlfwKeyEvent>().connect<&on_glfw_key>();
globals::dispatcher.sink<io::GlfwMouseButtonEvent>().connect<&on_glfw_mouse_button>();
globals::dispatcher.sink<io::GlfwScrollEvent>().connect<&on_glfw_scroll>();
current_text = gui::language::resolve("splash.skip_prompt");
while(!glfwWindowShouldClose(globals::window)) {
const std::uint64_t curtime = utils::unix_microseconds();
const std::uint64_t remains = end_time - curtime;
if(curtime >= end_time) {
break;
}
texture_alpha = math::smoothstep(0.25f, 0.6f, static_cast<float>(remains) / static_cast<float>(DELAY_MICROSECONDS));
gui::client_splash::render();
}
globals::dispatcher.sink<io::GlfwKeyEvent>().disconnect<&on_glfw_key>();
globals::dispatcher.sink<io::GlfwMouseButtonEvent>().disconnect<&on_glfw_mouse_button>();
globals::dispatcher.sink<io::GlfwScrollEvent>().disconnect<&on_glfw_scroll>();
texture = nullptr;
texture_aspect = 0.0f;
texture_alpha = 0.0f;
end_time = UINT64_C(0);
}
void gui::client_splash::render(void)
{
if(!texture) {
// We don't have to waste time
// rendering the missing client_splash texture
return;
}
// The client_splash is rendered outside the main
// render loop, so we have to manually begin
// and render both window and ImGui frames
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
glDisable(GL_DEPTH_TEST);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glViewport(0, 0, globals::width, globals::height);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
auto viewport = ImGui::GetMainViewport();
auto window_start = ImVec2(0.0f, 0.0f);
auto window_size = ImVec2(viewport->Size.x, viewport->Size.y);
ImGui::SetNextWindowPos(window_start);
ImGui::SetNextWindowSize(window_size);
if(ImGui::Begin("###client_splash", nullptr, WINDOW_FLAGS)) {
const float image_width = 0.60f * viewport->Size.x;
const float image_height = image_width / texture_aspect;
const ImVec2 image_size = ImVec2(image_width, image_height);
const float image_x = 0.5f * (viewport->Size.x - image_width);
const float image_y = 0.5f * (viewport->Size.y - image_height);
const ImVec2 image_pos = ImVec2(image_x, image_y);
if(!current_text.empty()) {
ImGui::PushFont(globals::font_chat);
ImGui::SetCursorPos(ImVec2(16.0f, 16.0f));
ImGui::TextDisabled("%s", current_text.c_str());
ImGui::PopFont();
}
const ImVec2 uv_a = ImVec2(0.0f, 0.0f);
const ImVec2 uv_b = ImVec2(1.0f, 1.0f);
const ImVec4 tint = ImVec4(1.0f, 1.0f, 1.0f, texture_alpha);
ImGui::SetCursorPos(image_pos);
ImGui::ImageWithBg(texture->handle, image_size, uv_a, uv_b, ImVec4(0.0f, 0.0f, 0.0f, 0.0f), tint);
}
ImGui::End();
ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
glfwSwapBuffers(globals::window);
glfwPollEvents();
}
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