X-Git-Url: https://git.cworth.org/git?p=empires-server;a=blobdiff_plain;f=lmno.js;h=54baea91f8d5688a74071fa45d19a12cd13ae091;hp=0db678957f0d0e09717fd9e6257d5c3d57189dff;hb=HEAD;hpb=3586642fb026f5caa5da24ec8a68862509f0d4d1

diff --git a/lmno.js b/lmno.js
index 0db6789..54baea9 100644
--- a/lmno.js
+++ b/lmno.js
@@ -59,14 +59,21 @@ njx.addFilter('active', function(list) {
   if (list)
     return list.filter(e => e.active === true);
   else
-    return null;
+    return [];
 });
 
 njx.addFilter('idle', function(list) {
   if (list)
     return list.filter(e => e.active === false);
   else
-    return null;
+    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.
@@ -122,10 +129,9 @@ class LMNO {
     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];
 
@@ -135,6 +141,14 @@ class LMNO {
 
     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:
@@ -149,6 +163,13 @@ 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 */
@@ -281,7 +302,7 @@ app.post('/login', async (request, response) => {
   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) {