Урок 6. Часть 1. Таймеры. Allegro

Исходный код:

#define ALLEGRO_STATICLINK

#include <allegro5\allegro.h>

#include <allegro5\allegro_font.h>

#include <allegro5\allegro_ttf.h>

int main()

{

int width = 640;

int height = 480;

bool user_exit = false;

int count = 0;

int FPS = 10;

ALLEGRO_DISPLAY *display = NULL;

ALLEGRO_EVENT_QUEUE *event_queue = NULL;

ALLEGRO_TIMER *timer = NULL;

if(!al_init()) //Инициализация Аллегро

return -1;

display = al_create_display(width, height); //Создание дисплея

if(!display) //Проверка дисплея

return -1;

al_init_font_addon();

al_init_ttf_addon();

ALLEGRO_FONT *font = al_load_font("Resources/arial.ttf", 20, 0);

timer = al_create_timer(1.0 / FPS);

event_queue = al_create_event_queue();

al_register_event_source(event_queue, al_get_timer_event_source(timer));

al_start_timer(timer);

while(!user_exit)

{

ALLEGRO_EVENT ev;

al_wait_for_event(event_queue, &ev);

count++;

al_draw_textf(font, al_map_rgb(255, 255, 255), width / 2, height / 2, ALLEGRO_ALIGN_CENTRE,

"Frames: %i", count);

al_flip_display();

al_clear_to_color(al_map_rgb(0, 0, 0));

}

al_destroy_display(display); //Удаление дисплея

al_destroy_event_queue(event_queue);

al_destroy_timer(timer);

return 0;

}