Add an ID value to each player

This is a first baby step toward implementing the more complete API
for the game which we defined today, and which can be found here:

	https://git.cworth.org/git/empires-api

In this commit we also introduce a 'Game' class to encapsulate all
data necessary for the game, (so the 'players' array we had before,
but also the 'next_player_id' which we need now).

diff --git a/server.js b/server.js
index 7b95a6bff7961f93508efe282fc89b87abc7d533..4957f321f1f64628fcffa0800401a296e4e08504 100644 (file)
--- a/server.js
+++ b/server.js
@@ -3,7 +3,21 @@ const body_parser = require("body-parser");
 
 const app = express();
 
-const players = [];
+class Game {
+  constructor() {
+    this.players = [];
+    this.next_player_id = 1;
+  }
+
+  add_player(name, character) {
+    this.players.push({id: this.next_player_id,
+                       name: name,
+                       character: character})
+    this.next_player_id++;
+  }
+}
+
+game = new Game();
 
 app.use(body_parser.urlencoded({ extended: false }));
 app.use(body_parser.json());
@@ -13,12 +27,11 @@ app.get('/', function (requses, response) {
 });
 
 app.get('/players', function (request, response) {
-  response.send(players);
+  response.send(game.players);
 });
 
 app.post('/register', function (request, response) {
-  players.push({name: request.body.name,
-                character: request.body.character});
+  game.add_player(request.body.name, request.body.character);
   response.send();
 });