Don't let a new prompt get started when another is active

[empires-server] / empathy.js

diff --git a/empathy.js b/empathy.js
index 12a743e87aad296cace8420b8fb6f28cfd8dfe7e..29d31bf7d46fbd0595e2ad8e6b3506057da387db 100644 (file)
--- a/empathy.js
+++ b/empathy.js
@@ -4,10 +4,102 @@ const Game = require("./game.js");
 class Empathy extends Game {
   constructor(id) {
     super(id);
+    this.state = {
+      prompts: [],
+      active_prompt: null
+    };
+    this.next_prompt_id = 1;
+  }
+
+  add_prompt(items, prompt_string) {
+    const prompt = new Prompt(this.next_prompt_id, items, prompt_string);
+    this.next_prompt_id++;
+
+    this.state.prompts.push(prompt);
+
+    this.broadcast_event_object('prompt', prompt);
+
+    return prompt;
+  }
+
+  /* Returns true if vote toggled, false for player or prompt not found */
+  toggle_vote(prompt_id, session_id) {
+    const player = this.players_by_session[session_id];
+
+    const prompt = this.state.prompts.find(p => p.id === prompt_id);
+    if (! prompt || ! player)
+      return false;
+
+    prompt.toggle_vote(player.name);
+
+    this.broadcast_event_object('prompt', prompt);
+
+    return true;
+  }
+
+  /* Returns true on success, false for prompt not found. */
+  start(prompt_id) {
+    const prompt = this.state.prompts.find(p => p.id === prompt_id);
+    if (! prompt)
+      return false;
+
+    /* Ignore any start request that comes in while a prompt is
+     * already being played. */
+    if (this.state.active_prompt)
+      return false;
+
+    this.state.active_prompt = prompt;
+
+    this.broadcast_event_object('start', prompt);
+
+    return true;
   }
 }
 
 Empathy.router = express.Router();
+const router = Empathy.router;
+
+class Prompt {
+  constructor(id, items, prompt) {
+    this.id = id;
+    this.items = items;
+    this.prompt = prompt;
+    this.votes = [];
+  }
+
+  toggle_vote(player_name) {
+    if (this.votes.find(v => v === player_name))
+      this.votes = this.votes.filter(v => v !== player_name);
+    else
+      this.votes.push(player_name);
+  }
+}
+
+router.post('/prompts', (request, response) => {
+  const game = request.game;
+
+  game.add_prompt(request.body.items, request.body.prompt);
+});
+
+router.post('/vote/:prompt_id([0-9]+)', (request, response) => {
+  const game = request.game;
+  const prompt_id = parseInt(request.params.prompt_id, 10);
+
+  if (game.toggle_vote(prompt_id, request.session.id))
+    response.sendStatus(200);
+  else
+    response.sendStatus(404);
+});
+
+router.post('/start/:prompt_id([[0-9]+)', (request, response) => {
+  const game = request.game;
+  const prompt_id = parseInt(request.params.prompt_id, 10);
+
+  if (game.start(prompt_id))
+    response.sendStatus(200);
+  else
+    response.sendStatus(404);
+});
 
 Empathy.meta = {
   name: "Empathy",