int main(int argc, const char ** argv) {
struct timeval start_time, end_time;
struct timespec tspec = {0, 0};
struct timespec left = {0, 0};
int error;
long long elapsed;
float cam_center_x, cam_center_y;
if (swiftsure_log_init() < 0) {
printf("Bad times, we couldn't open our log file =(\n");
return -1;
}
rendering_init();
if (input_init() < 0) {
printf("Bad times, we couldn't initialize the input subsystem\n");
return -1;
}
action_init();
world.width = WORLD_SIZE;
world.height = WORLD_SIZE;
world_init(&world, 1);
game_init();
swiftsure_log(INFO, "Startin engines\n");
frame = 0;
elapsed = 16666;
while (1) {
gettimeofday(&start_time, NULL);
game_get_avg_pos(&cam_center_x, &cam_center_y);
render_set_camera(-cam_center_x, -cam_center_y, 4);
handle_events();
action_perform();
render_start_frame();
render_world(&world);
game_render_players();
render_end_frame();
++frame;
physics_tick(&world, 10. / elapsed);
//Rate limiting
gettimeofday(&end_time, NULL);
elapsed = (end_time.tv_sec - start_time.tv_sec) * 1000000 + (end_time.tv_usec - start_time.tv_usec);
if (elapsed < 16666) {
tspec.tv_nsec = (16666 - elapsed) * 1000;
error = nanosleep(&tspec, &left);
if (error < 0) {
swiftsure_log(DEBUG, "We had %d seconds and %d nanoseconds left to sleep, errno %d\n", left.tv_sec, left.tv_nsec, errno);
}
}
}
}
void tick()
{
double dt = delta_time();
physics_tick(dt);
player_move(dt);
}
int main(void)
{
/* Initialize the library */
if (!glfwInit())
return -1;
/* Create a windowed mode window and its OpenGL context */
window = glfwCreateWindow(640, 480, "Hello World", NULL, NULL);
if (!window)
{
glfwTerminate();
return -1;
}
int tiles[4 * 4] = {
0, 1, 1, 0,
1, 1, 0, 0,
0, 1, 1, 1,
0, 0, 1, 1,
};
Game game;
game.tiles.tiles = tiles;
game.tiles.width = 4;
game.tiles.height = 4;
game.players[0].position = vec2(2.0f, 6.0f);
game.players[0].velocity = vec2(0.0f, 0.0f);
game.players[0].size = vec2(0.5f, 0.8f);
/* Make the window's context current */
glfwMakeContextCurrent(window);
/* Loop until the user closes the window */
while (!glfwWindowShouldClose(window))
{
/* Render here */
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0f, 10.0f, 0.0f, 10.0f, -1.0f, 1.0f);
update_input(&game);
physics_tick(&game, 0.016f);
render(&game);
/* Swap front and back buffers */
glfwSwapBuffers(window);
/* Poll for and process events */
glfwPollEvents();
}
glfwTerminate();
return 0;
}