return (Object.keys(V.ALICE_PIECES).includes(b[1]) ? "Alice/" : "") + b;
}
+ getEpSquare(moveOrSquare) {
+ if (!moveOrSquare) return undefined;
+ if (typeof moveOrSquare === "string") {
+ const square = moveOrSquare;
+ if (square == "-") return undefined;
+ return V.SquareToCoords(square);
+ }
+ // Argument is a move:
+ const move = moveOrSquare;
+ const s = move.start,
+ e = move.end;
+ if (
+ s.y == e.y &&
+ Math.abs(s.x - e.x) == 2 &&
+ // Special conditions: a pawn can be on the other side
+ ['p','s'].includes(move.appear[0].p) &&
+ ['p','s'].includes(move.vanish[0].p)
+ ) {
+ return {
+ x: (s.x + e.x) / 2,
+ y: s.y
+ };
+ }
+ return undefined; //default
+ }
+
setOtherVariables(fen) {
super.setOtherVariables(fen);
const rows = V.ParseFen(fen).position.split("/");