pub fn path_overlays(path: &[Pos], grid: &Grid, color: Rgb) -> Vec<Overlay>Expand description
The overlays drawing path (the unit’s tile first) in color: the
line Under the glyphs, then the arrowhead Over them; nothing for a
path of one tile. Clipped to the tiles of grid. On a zoomed grid
the line and the arrowhead are the art-sized tile’s, every pixel a
square of the zoom’s.