Standardize transmission of game "state" when a client joins

[empires-server] / game.js

diff --git a/game.js b/game.js
index fb2d75afa87214f1eaa4fe426772ca59f39e24f3..faef43798b79482e4f2e0cdc1656ec66718601c9 100644 (file)
--- a/game.js
+++ b/game.js
@@ -1,6 +1,7 @@
 /* Base class providing common code for game engine implementations. */
 class Game {
-  constructor() {
+  constructor(id) {
+    this.id = id;
     this.clients = [];
     this.next_client_id = 1;
   }
@@ -68,6 +69,13 @@ class Game {
     request.on('close', () => {
       this.remove_client(id);
     });
+
+    /* Finally, if this game class has a "state" property, stream that
+     * current state to the client. */
+    if (this.state) {
+      const state_json = JSON.stringify(this.state);
+      response.write(`event: game-state\ndata: ${state_json}\n\n`);
+    }
   }
 
 }