fix reset button

src/_posts/2021-04-11-ripple-v2.md

@@ -24,7 +24,7 @@ Let it be still, and it will gradually become clear._
 Your browser doesn't support canvas. At this point in the world that's actually
 pretty cool, well done!
 </canvas>
-<button onclick="resetGame()">(R)eset</button>
+<button onclick="reset()">(R)eset</button>
 <span style="font-size: 2rem; margin-left: 1rem;">Score:
     <span style="font-weight: bold" id="score">0</span>
 </span>
@@ -396,10 +396,12 @@ const requestAnimationFrame =
 
 let game = new Game(canvas, document.getElementById("score"));
 
+function reset() {
+    game = new Game(canvas, document.getElementById("score"));
+}
+
 function nextFrame() {
-    if (game.shouldReset()) {
-        game = new Game(canvas, document.getElementById("score"));
-    }
+    if (game.shouldReset()) reset();
 
     game.update()
     game.draw()