139 lines
3.1 KiB
C
139 lines
3.1 KiB
C
/*
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* Copyright (C) 2018 Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
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* Author: Ortega Froysa, Nicolás <nortega@themusicinnoise.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "event_manager.h"
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#include "globals.h"
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#ifdef DEBUG
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# include <stdio.h>
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#endif
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#include <stddef.h>
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#include <assert.h>
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#include <allegro5/allegro.h>
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static ALLEGRO_EVENT_QUEUE *event_queue;
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static ALLEGRO_TIMER *timer;
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static int keys[KEY_MAX];
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int evnt_mngr_init(ALLEGRO_DISPLAY *display) {
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assert(display);
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if(!al_install_keyboard())
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return 0;
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#ifdef DEBUG
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puts("Initialized keyboard.");
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#endif
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timer = al_create_timer(1.0f / FPS);
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if(!timer)
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return 0;
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#ifdef DEBUG
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puts("Initialized timer.");
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#endif
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event_queue = al_create_event_queue();
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if(!event_queue)
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{
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al_destroy_timer(timer);
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return 0;
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}
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#ifdef DEBUG
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puts("Initialized event queue.");
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#endif
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al_register_event_source(event_queue,
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al_get_display_event_source(display));
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al_register_event_source(event_queue,
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al_get_timer_event_source(timer));
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al_register_event_source(event_queue,
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al_get_keyboard_event_source());
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al_start_timer(timer);
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// set all keys to false at initialization
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for(size_t i = 0; i < KEY_MAX; ++i)
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keys[i] = 0;
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return 1;
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}
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void evnt_mngr_deinit() {
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al_destroy_timer(timer);
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#ifdef DEBUG
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puts("Destroyed timer.");
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#endif
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al_destroy_event_queue(event_queue);
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#ifdef DEBUG
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puts("Destroyed event queue.");
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#endif
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}
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void set_key(int keycode, int value) {
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switch(keycode)
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{
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case ALLEGRO_KEY_UP:
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keys[KEY_UP] = value;
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break;
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case ALLEGRO_KEY_DOWN:
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keys[KEY_DOWN] = value;
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break;
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case ALLEGRO_KEY_LEFT:
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keys[KEY_LEFT] = value;
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break;
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case ALLEGRO_KEY_RIGHT:
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keys[KEY_RIGHT] = value;
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break;
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case ALLEGRO_KEY_R:
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keys[KEY_RESET] = value;
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break;
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case ALLEGRO_KEY_F:
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keys[KEY_FULLSCREEN] = value;
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break;
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default:
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break;
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}
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}
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void handle_event() {
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ALLEGRO_EVENT evnt;
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al_wait_for_event(event_queue, &evnt);
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switch(evnt.type)
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{
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case ALLEGRO_EVENT_TIMER:
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redraw = 1;
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break;
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case ALLEGRO_EVENT_DISPLAY_CLOSE:
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run = 0;
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break;
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case ALLEGRO_EVENT_KEY_DOWN:
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if(evnt.keyboard.keycode == ALLEGRO_KEY_H)
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show_help = !show_help;
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else if(evnt.keyboard.keycode == ALLEGRO_KEY_I)
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show_info = !show_info;
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else
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set_key(evnt.keyboard.keycode, 1);
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break;
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case ALLEGRO_EVENT_KEY_UP:
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set_key(evnt.keyboard.keycode, 0);
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break;
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}
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}
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int key_is_down(int code) {
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assert(code >= 0 && code <= KEY_MAX);
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return keys[code];
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}
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