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/**
* @file main.cpp
* The main file, where the magic begins.
*
* Copyright (C) 2019 Clyne Sullivan
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <SDL2/SDL.h>
#include <atomic>
#include <chrono>
#include <iostream>
#include <memory>
#include <thread>
constexpr const char *title = "gamedev2";
constexpr int width = 640;
constexpr int height = 480;
std::atomic_bool shouldRun;
static void renderLoop(void);
static void logicLoop(void);
int main([[maybe_unused]] int argc, [[maybe_unused]] char *argv[])
{
// Initialize SDL
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
std::cerr << "SDL failed to initialize: " << SDL_GetError()
<< std::endl;
return -1;
} else {
atexit(SDL_Quit);
}
// Create our window
std::unique_ptr<SDL_Window, decltype(&SDL_DestroyWindow)> window
(SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED, width, height, 0), SDL_DestroyWindow);
if (window.get() == nullptr) {
std::cerr << "SDL window creation failed: " << SDL_GetError()
<< std::endl;
return -1;
}
// Start game
shouldRun.store(true);
std::thread logic (logicLoop);
renderLoop();
logic.join();
return 0;
}
void renderLoop(void)
{
using namespace std::chrono_literals;
// TODO render
while (shouldRun.load())
std::this_thread::sleep_for(100ms);
}
void logicLoop(void)
{
using namespace std::chrono_literals;
std::cout << "Press escape to exit." << std::endl;
while (shouldRun.load()) {
for (SDL_Event event; SDL_PollEvent(&event);) {
switch (event.type) {
case SDL_KEYUP:
// Exit game on escape
if (event.key.keysym.sym == SDLK_ESCAPE)
shouldRun.store(false);
break;
default:
break;
}
}
std::this_thread::sleep_for(100ms);
}
}
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