Resolve the image file path for a piece symbol within a set

Most sets ship SVG, but a few use webp or png, so the extension is resolved from what the set directory actually contains.

Usage

piece_svg_path(symbol, set_dir = app_sys("svg"))

Arguments

symbol

A FEN piece letter (uppercase = white, lowercase = black).

set_dir

Directory holding the 12 piece images (defaults to bundled cburnett).

Value

The file path of the matching image (e.g. wN.svg for "N").