}
const app = express();
+
+/* This 'trust proxy' option, (and, really? a space in an option
+ * name?!) means that express will grab hostname and IP values from
+ * the X-Forwarded-* header fields. We need that so that our games
+ * will display a proper hostname of https://lmno.games/WXYZ instead
+ * of http://localhost/QFBL which will obviously not be a helpful
+ * thing to share around.
+ */
+app.set('trust proxy', true);
app.use(cors());
app.use(body_parser.urlencoded({ extended: false }));
app.use(body_parser.json());
saveUninitialized: false
}));
-nunjucks.configure("templates", {
+const njx = nunjucks.configure("templates", {
autoescape: true,
express: app
});
+njx.addFilter('active', function(list) {
+ if (list)
+ return list.filter(e => e.active === true);
+ else
+ return [];
+});
+
+njx.addFilter('idle', function(list) {
+ if (list)
+ return list.filter(e => e.active === false);
+ else
+ return [];
+});
+
+njx.addFilter('map_prop', function(list, prop) {
+ if (list)
+ return list.map(e => e[prop]);
+ else
+ return [];
+});
+
/* Load each of our game mini-apps.
*
* Each "engine" we load here must have a property .Game on the
*/
const engines = {
empires: require("./empires").Game,
- tictactoe: require("./tictactoe").Game
+ tictactoe: require("./tictactoe").Game,
+ scribe: require("./scribe").Game,
+ empathy: require("./empathy").Game
};
class LMNO {
}
generate_id() {
- return Array(4).fill(null).map(() => LMNO.letters.charAt(Math.floor(Math.random() * LMNO.letters.length))).join('');
+ /* Note: The copy from Array(4) to [...Array(4)] is necessary so
+ * that map() will actually work, (which it doesn't on an array
+ * from Array(N) which is in this strange state of having "empty"
+ * items rather than "undefined" as we get after [...Array(4)] */
+ return [...Array(4)].map(() => LMNO.letters.charAt(Math.floor(Math.random() * LMNO.letters.length))).join('');
}
- create_game(engine_name) {
- do {
- var id = this.generate_id();
- } while (id in this.games);
+ create_game_with_id(engine_name, id) {
+ if (this.games[id])
+ return null;
const engine = engines[engine_name];
return game;
}
+
+ create_game(engine_name) {
+ do {
+ var id = this.generate_id();
+ } while (id in this.games);
+
+ return this.create_game_with_id(engine_name, id);
+ }
}
/* Some letters we don't use in our IDs:
* 1. Vowels (AEIOU) to avoid accidentally spelling an unfortunate word
* 2. Lowercase letters (replace with corresponding capital on input)
* 3. N (replace with M on input)
- * 4. P (replace with B on input)
- * 5. S (replace with F on input)
+ * 4. B (replace with P on input)
+ * 5. F,X (replace with S on input)
*/
-LMNO.letters = "BCDFGHJKLMQRTVWXYZ";
+LMNO.letters = "CCDDDGGGHHJKLLLLMMMMPPPPQRRRSSSTTTVVWWYYZ";
const lmno = new LMNO();
+/* Pre-allocate an empires game with ID QRST.
+ * This is for convenience in the development of the flempires
+ * client which would like to have stable API endpoints across
+ * server restarts.
+ */
+lmno.create_game_with_id("empires", "QRST");
+
/* Force a game ID into a canonical form as described above. */
function lmno_canonize(id) {
/* Capitalize */
/* Replace unused letters with nearest phonetic match. */
id = id.replace(/N/g, 'M');
- id = id.replace(/P/g, 'B');
- id = id.replace(/S/g, 'F');
+ id = id.replace(/B/g, 'P');
+ id = id.replace(/F/g, 'S');
+ id = id.replace(/X/g, 'S');
/* Replace unused numbers nearest visual match. */
id = id.replace(/0/g, 'O');
return;
});
-/* API to set uer profile information */
+/* API to set user profile information */
app.put('/profile', (request, response) => {
const nickname = request.body.nickname;
if (nickname) {
let idle = [];
for (let id in lmno.games) {
- if (lmno.games[id].clients.length)
+ if (lmno.games[id].players.filter(p => p.active).length > 0)
active.push(lmno.games[id]);
else
idle.push(lmno.games[id]);
}
- response.render('admin.html', { test: "foobar", games: { active: active, idle: idle}});
+ response.render('admin.html', { games: { active: active, idle: idle}});
});
router.get('/', (request, response) => {
const game = request.game;
- if (! request.session.nickname)
- response.render('choose-nickname.html', { game_name: game.meta.name });
- else
+ if (! request.session.nickname) {
+ response.render('choose-nickname.html', {
+ game_name: game.meta.name,
+ options: game.meta.options
+ });
+ } else {
response.render(`${game.meta.identifier}-game.html`);
+ }
});
router.put('/player', (request, response) => {
const result = game.add_move(player, move);
+ /* Take care of any generic post-move work. */
+ game.post_move(player, result);
+
/* Feed move response back to the client. */
response.json(result);