// NOTE: initial setup differs from the original; see
// https://www.chessvariants.com/large.dir/freeling.html
-export const VariantRules = class GrandRules extends ChessRules {
+export class GrandRules extends ChessRules {
static IsGoodFen(fen) {
if (!ChessRules.IsGoodFen(fen)) return false;
const fenParsed = V.ParseFen(fen);
for (let epsq of epSquare) {
// TODO: some redundant checks
if (epsq.x == x + shiftX && Math.abs(epsq.y - y) == 1) {
- var enpassantMove = this.getBasicMove([x, y], [epsq.x, epsq.y]);
+ let enpassantMove = this.getBasicMove([x, y], [epsq.x, epsq.y]);
// WARNING: the captured pawn may be diagonally behind us,
// if it's a 3-squares jump and we take on 1st passing square
const px = this.board[x][epsq.y] != V.EMPTY ? x : x - shiftX;
);
}
- isAttacked(sq, colors) {
+ isAttacked(sq, color) {
return (
- super.isAttacked(sq, colors) ||
- this.isAttackedByMarshall(sq, colors) ||
- this.isAttackedByCardinal(sq, colors)
+ super.isAttacked(sq, color) ||
+ this.isAttackedByMarshall(sq, color) ||
+ this.isAttackedByCardinal(sq, color)
);
}
- isAttackedByMarshall(sq, colors) {
+ isAttackedByMarshall(sq, color) {
return (
- this.isAttackedBySlideNJump(sq, colors, V.MARSHALL, V.steps[V.ROOK]) ||
+ this.isAttackedBySlideNJump(sq, color, V.MARSHALL, V.steps[V.ROOK]) ||
this.isAttackedBySlideNJump(
sq,
- colors,
+ color,
V.MARSHALL,
V.steps[V.KNIGHT],
"oneStep"
);
}
- isAttackedByCardinal(sq, colors) {
+ isAttackedByCardinal(sq, color) {
return (
- this.isAttackedBySlideNJump(sq, colors, V.CARDINAL, V.steps[V.BISHOP]) ||
+ this.isAttackedBySlideNJump(sq, color, V.CARDINAL, V.steps[V.BISHOP]) ||
this.isAttackedBySlideNJump(
sq,
- colors,
+ color,
V.CARDINAL,
V.steps[V.KNIGHT],
"oneStep"