changed ball and bar for a sprite

assets/js/Lives.js

@@ -0,0 +1,27 @@
+class Lives {
+    constructor() {
+        this.reset();
+    }
+    reset() {
+        this.lives = 3;
+        this.y = 10;
+    }
+    lost() {
+        this.lives--;
+        return this.lives==0;
+    }
+    get() { 
+        return this.lives;
+    }
+    update(ctx) {
+        if (this.y != 48) this.y++;
+        if (this.y > 0) {
+            let txt = (String.fromCharCode(parseInt('26A1', 16))+" ").repeat(this.lives);
+
+            ctx.font = "18px Consolas";
+            ctx.fillStyle = 'Green';
+            this.x = ctx.canvas.width - ctx.measureText(txt).width;
+            ctx.fillText(txt, this.x, this.y);
+        }
+    }
+}