src/main.c

@@ -0,0 +1,47 @@
+#include <allegro5/allegro5.h>
+#include <allegro5/allegro_font.h>
+
+int main()
+{
+    al_init();
+    al_install_keyboard();
+
+    ALLEGRO_TIMER* timer = al_create_timer(1.0 / 30.0);
+    ALLEGRO_EVENT_QUEUE* queue = al_create_event_queue();
+    ALLEGRO_DISPLAY* disp = al_create_display(320, 200);
+    ALLEGRO_FONT* font = al_create_builtin_font();
+
+    al_register_event_source(queue, al_get_keyboard_event_source());
+    al_register_event_source(queue, al_get_display_event_source(disp));
+    al_register_event_source(queue, al_get_timer_event_source(timer));
+
+    bool redraw = true;
+    ALLEGRO_EVENT event;
+
+    al_start_timer(timer);
+    while(1)
+    {
+        al_wait_for_event(queue, &event);
+
+        if(event.type == ALLEGRO_EVENT_TIMER)
+            redraw = true;
+        else if((event.type == ALLEGRO_EVENT_KEY_DOWN) || (event.type == ALLEGRO_EVENT_DISPLAY_CLOSE))
+            break;
+
+        if(redraw && al_is_event_queue_empty(queue))
+        {
+            al_clear_to_color(al_map_rgb(0, 0, 0));
+            al_draw_text(font, al_map_rgb(255, 255, 255), 0, 0, 0, "Hello world!");
+            al_flip_display();
+
+            redraw = false;
+        }
+    }
+
+    al_destroy_font(font);
+    al_destroy_display(disp);
+    al_destroy_timer(timer);
+    al_destroy_event_queue(queue);
+
+    return 0;
+}