Generalize the handling of the /move request

[empires-server] / lmno.js

diff --git a/lmno.js b/lmno.js
index 5e67350992497abacf41247720d0b304fc8cab8e..8d66b41ea09e066ffc2acce777a744c83f837c99 100644 (file)
--- a/lmno.js
+++ b/lmno.js
@@ -264,6 +264,26 @@ for (let key in engines) {
     game.handle_events(request, response);
   });
 
+  /* Further, add some routes conditionally depending on whether the
+   * engine provides specific, necessary methods for the routes. */
+  if (engine.Game.prototype.add_move) {
+    engine.router.post('/move', (request, response) => {
+      const game = request.game;
+      const move = request.body.move;
+
+      const legal = game.add_move(move);
+
+      /* Inform this client whether the move was legal. */
+      response.send(JSON.stringify(legal));
+
+      /* And only if legal, inform all clients. */
+      if (! legal)
+        return;
+
+      game.broadcast_move(move);
+    });
+  }
+
   /* And mount the whole router at the path for the game. */
   app.use(`/${engine.Game.meta.identifier}/[a-zA-Z0-9]{4}/`, engine.router);
 }