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#include "imgui_internal.h"
#include <basic/defs.hpp>
#include <cstdlib>
#include <memory>
#include <renderer/RenderGroup.hpp>
#include <renderer/Renderer.hpp>
#include <games/Game.hpp>
#include <SDL3/SDL.h>
#include <SDL3/SDL_video.h>
#include <GL/gl.h>
#include <imgui.h>
#include <imgui_impl_opengl3.h>
#include <imgui_impl_sdl3.h>
#include <stdlib.h>
#include <assert.h>
#include <iostream>
#include <array>
Game::GameType
do_menu(RenderGroup &render_group)
{
Game::GameType type = Game::NO_GAME;
//ImGuiWindowFlags flags = ImGuiWindowFlags_NoNav | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove;
ImGuiWindowFlags flags = 0;
ImGui::Begin("Game Selection", nullptr, flags);
if (ImGui::Button("Tetris")) {
type = Game::TETRIS;
}
if (ImGui::Button("Snake")) {
type = Game::SNAKE;
}
if (ImGui::Button("Minesweeper")) {
type = Game::MINESWEEPER;
}
ImGui::End();
V3F32 clear_color = V3F32(0.4f, 0.4f, 0.4f);
render_group.SetCameraSize(4.0f, 3.0f);
render_group.Clear(clear_color);
return type;
}
int
main(int argc, char **argv)
{
if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMEPAD)) {
std::cerr << "Failed to init SDL3: " << SDL_GetError() << '\n';
return EXIT_FAILURE;
}
const char* glsl_version = "#version 130";
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_Window *window = SDL_CreateWindow("fsarcade", 1024, 768, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY);
if (!window) {
std::cerr << "Failed to create SDL_window: " << SDL_GetError() << '\n';
return EXIT_FAILURE;
}
SDL_GLContext sdl_gl_context = SDL_GL_CreateContext(window);
if (!sdl_gl_context) {
std::cerr << "Failed to create SDL_GLContext: " << SDL_GetError() << '\n';
SDL_DestroyWindow(window);
return EXIT_FAILURE;
}
SDL_GL_MakeCurrent(window, sdl_gl_context);
SDL_GL_SetSwapInterval(1); // enable vsync
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
SDL_ShowWindow(window);
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO();
io.IniFilename = NULL;
io.LogFilename = NULL;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;
ImGui::StyleColorsDark();
ImGui_ImplSDL3_InitForOpenGL(window, sdl_gl_context);
ImGui_ImplOpenGL3_Init(glsl_version);
std::unique_ptr<Game> game = nullptr;
std::unique_ptr<Renderer> renderer = Renderer::Select(Renderer::API_OPENGL, window);
if (!renderer->Init()) {
return EXIT_FAILURE;
}
RenderGroup render_group;
SDL_GetWindowSize(window, &render_group.m_ScreenWidth, &render_group.m_ScreenHeight);
std::vector<SDL_Event> game_events;
game_events.reserve(32);
for (;;) {
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplSDL3_NewFrame();
ImGui::NewFrame();
size_t cur_game_events = 0;
size_t max_game_events = game_events.max_size();
SDL_Event event;
while (cur_game_events < max_game_events && SDL_PollEvent(&event)) {
if (event.type == SDL_EVENT_KEY_DOWN ||
event.type == SDL_EVENT_MOUSE_BUTTON_DOWN)
{
game_events.emplace_back(event);
cur_game_events++;
}
ImGui_ImplSDL3_ProcessEvent(&event);
if (event.type == SDL_EVENT_QUIT)
goto QUIT;
if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
goto QUIT;
if (event.type == SDL_EVENT_WINDOW_DESTROYED && event.window.windowID == SDL_GetWindowID(window)) {
goto QUIT;
}
}
int w, h;
SDL_GetWindowSize(window, &w, &h);
render_group.m_ScreenWidth = w;
render_group.m_ScreenHeight = h;
if (game) {
bool keep_game_running = game->Update(game_events, render_group);
if (!keep_game_running) {
game.reset();
}
}
else {
Game::GameType type = do_menu(render_group);
if (type != Game::NO_GAME) {
game = Game::Select(type);
}
}
game_events.clear();
ImGuiWindowFlags flags = ImGuiWindowFlags_NoNav | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoBackground | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove;
ImGui::SetNextWindowPos(ImVec2(io.DisplaySize.x - 200, 0));
ImGui::Begin("Performance", nullptr, flags);
ImGui::Text("%.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
ImGui::End();
renderer->Draw(render_group);
ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
renderer->Present();
render_group.Reset();
}
QUIT:
ImGui_ImplOpenGL3_Shutdown();
ImGui_ImplSDL3_Shutdown();
ImGui::DestroyContext();
SDL_GL_DestroyContext(sdl_gl_context);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}
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