int main(int argc, char **argv)
{
SDL_Surface *screen, *background,
*pause_text, *press_enter_text, *game_over_text;
const SDL_VideoInfo *video_info;
Uint32 frame_start, frame_end = 0, game_frame_end = 0;
systems_init();
screen = SDL_SetVideoMode(800, 600, 0, SDL_HWSURFACE|SDL_DOUBLEBUF);
video_info = SDL_GetVideoInfo();
create_images(&press_enter_text, &pause_text, &game_over_text, &background);
create_entities();
for(;;) {
start_frame(&frame_start, &frame_end);
if(check_SDL_events())
break;
draw_background(background, screen, video_info);
update_entities(game_frame_end );
if(is_paused()) {
if(is_game_over()) {
draw_centered(screen, video_info, game_over_text);
} else if(is_started()) {
draw_centered(screen, video_info, pause_text);
} else {
draw_centered(screen, video_info, press_enter_text);
}
}
SDL_Flip(screen);
finish_frame(&frame_start, &frame_end, &game_frame_end);
}
SDL_FreeSurface(background);
SDL_FreeSurface(pause_text);
SDL_FreeSurface(press_enter_text);
systems_shutdown();
return 0;
}
void Game::run(){
bool game_running = true;
Timer fps;
SDL_Event event;
while( game_running ){
// Start timing fps
fps.start();
SDL_PollEvent(&event);
if(event.key.repeat != 1){
switch(event.type){
case SDL_QUIT:
game_running = false;
break;
case SDL_KEYDOWN:
m_keys[SDL_KEY_CONVERT(event.key.keysym.sym)] = 1;
break;
case SDL_KEYUP:
m_keys[SDL_KEY_CONVERT(event.key.keysym.sym)] = 0;
break;
}
handle_input();
}
// Only update if game is running
if( m_current_state == state_game_running ){
update_entities();
}
draw();
// Lock framerate
if( fps.get_ticks() < g_max_ticks ){
SDL_Delay( ( g_max_ticks ) - fps.get_ticks() );
}
}
}
