Add detailed debug logs

assets/index.html

@@ -263,19 +263,24 @@
 
             const airplane = new Airplane();
             addLog('Airplane created, vertices: ' + airplane.vertices.length);
-
-            function animate() {
+function animate() {
                 try {
+                    addLog('FRAME start');
                     ctx.fillStyle = '#000';
                     ctx.fillRect(0, 0, width, height);
 
+                    addLog('before landscape.update');
                     landscape.update();
+                    addLog('before landscape.draw');
                     landscape.draw();
 
+                    addLog('before airplane.update');
                     airplane.update();
+                    addLog('before airplane.render');
                     airplane.render();
+                    addLog('FRAME end');
                 } catch (err) {
-                        addLog('ANIM ERR: ' + err.message + ' at line ' + (err.lineNumber || '?'));
+                    addLog('ANIM ERR: ' + err.message + ' at line ' + (err.lineNumber || '?') + ' stack: ' + (err.stack || ''));
                     return;
                 }
                 requestAnimationFrame(animate);