Added a countdown timer

site/mental-arithmatic/scripts/welcome.js

@@ -1,14 +1,35 @@
 import { Controller } from "https://unpkg.com/@hotwired/stimulus/dist/stimulus.js";
 
 export class WelcomeController extends Controller {
+    static targets = ["simpleHighScores"];
+
+    connect() {
+        this._buildHighScores();
+    }
+
     startGame(ev) {
         ev.preventDefault();
 
         this.element.classList.add('hidden');
-        window.dispatchEvent(new CustomEvent("startGame"));
+        window.dispatchEvent(new CustomEvent("startCountdown"));
     }
 
     gameEnded(ev) {
         this.element.classList.remove('hidden');
     }
+
+    _buildHighScores() {
+        let scores = {
+            last: 12,
+            high: 10,
+            streak: 3
+        };
+
+        let newEls = [
+            `<span>🏆 ${scores.last}</span>`,
+            `<span>🔥 ${scores.streak}</span>`,
+            `<span>↩️ ${scores.high}</span>`
+        ];
+        this.simpleHighScoresTarget.innerHTML = newEls.join('');
+    }
 }