Stop bullets when they hit a wall

html/images/space.svg

@@ -251,14 +251,16 @@
 
     function updateBullets(elapsed) {
       const deleteCount = 1;
+      const pt = document.querySelector('svg').createSVGPoint();
 
-      bullets.forEach((bullet, index) => {
+      [...bullets].forEach((bullet, index) => {
         bullet.time -= elapsed;
+        const x = bullet.x + 0.001 * elapsed * bullet.vx;
+        const y = bullet.y + 0.001 * elapsed * bullet.vy;
+        pt.x = x;
+        pt.y = y;
 
-        if (bullet.time > 0) {
-          let y = bullet.y + 0.001 * elapsed * bullet.vy;
-          let x = bullet.x + 0.001 * elapsed * bullet.vx;
-
+        if (bullet.time > 0 && !wall.isPointInFill(pt)) {
           [bullet.x, bullet.y] = wrapPos(x, y);
           bullet.node.style.transform = `translate(${bullet.x}px, ${bullet.y}px)`;
         } else {