Created an event manager.

src/event_manager.c

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2018  Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
+ * Author: Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "event_manager.h"
+#include "globals.h"
+
+#ifdef DEBUG
+#	include <stdio.h>
+#endif
+#include <allegro5/allegro.h>
+
+static ALLEGRO_EVENT_QUEUE *event_queue;
+static ALLEGRO_TIMER *timer;
+
+int evnt_mngr_init() {
+	timer = al_create_timer(1.0f / FPS);
+	if(!timer)
+		return 0;
+#ifdef DEBUG
+	puts("Initialized timer.");
+#endif
+
+	event_queue = al_create_event_queue();
+	if(!event_queue)
+		return 0;
+#ifdef DEBUG
+	puts("Initialized event queue.");
+#endif
+	al_register_event_source(event_queue,
+			al_get_display_event_source(display));
+	al_register_event_source(event_queue,
+			al_get_timer_event_source(timer));
+	al_start_timer(timer);
+	return 1;
+}
+
+void evnt_mngr_deinit() {
+	al_destroy_timer(timer);
+#ifdef DEBUG
+	puts("Destroyed timer.");
+#endif
+	al_destroy_event_queue(event_queue);
+#ifdef DEBUG
+	puts("Destroyed event queue.");
+#endif
+}
+
+void handle_event() {
+	ALLEGRO_EVENT evnt;
+	al_wait_for_event(event_queue, &evnt);
+
+	if(evnt.type == ALLEGRO_EVENT_TIMER)
+		redraw = 1;
+	else if(evnt.type == ALLEGRO_EVENT_DISPLAY_CLOSE)
+		run = 0;
+}