Spring RTS Engine

Nope, units target the hotspot piece as defined by the unit script.

It's still relivent to bombs, accidental overshoots, and target blocking for tall units behind short flat units.

QuerySweetspot(piecenum)
{
piecenum=body; //weapons will target the centre of the sweetspot piece
}

that isn't taken from a script, but it is how the sweetspot target is defined