AR mode in Whack a mole

Extremely buggy in detection of flat surface, and when it does detect a table edge as a flat surface at 45 degree angle, it so much zoomed in that all the moles are not visible at one go.
Moving the mobile backward interferes with surface detection.

Start by reproducing the AR mode on a mobile device, focusing on flat-surface detection, table-edge detection, zoom, and camera movement. The issue names no files or tests; done means reliably detecting the intended surface, keeping all moles visible, and avoiding detection interference when the device moves backward.

Written by the indexing model from the issue text.