import { ChessRules, Move, PiPo } from "@/base_rules";
export class Checkered1Rules extends ChessRules {
+
static board2fen(b) {
const checkered_codes = {
p: "s",
);
}
- getPotentialMovesFrom([x, y]) {
+ getPotentialMovesFrom([x, y], noswitch) {
let standardMoves = super.getPotentialMovesFrom([x, y]);
if (this.stage == 1) {
const color = this.turn;
// King is treated differently: it never turn checkered
if (this.getPiece(x, y) == V.KING) {
// If at least one checkered piece, allow switching:
- if (this.board.some(b => b.some(cell => cell[0] == 'c'))) {
+ if (
+ !noswitch &&
+ this.board.some(b => b.some(cell => cell[0] == 'c'))
+ ) {
const oppCol = V.GetOppCol(color);
moves.push(
new Move({
)
)
) {
- const moves = this.getPotentialMovesFrom([i, j]);
+ const moves = this.getPotentialMovesFrom([i, j], "noswitch");
if (moves.length > 0) {
for (let k = 0; k < moves.length; k++)
if (this.filterValid([moves[k]]).length > 0) return true;
this.kingPos[c][1] = move.appear[0].y;
}
super.updateCastleFlags(move, piece);
- // Does this move turn off a 2-squares pawn flag?
- if ([1, 6].includes(move.start.x) && move.vanish[0].p == V.PAWN)
+ if (
+ [1, 6].includes(move.start.x) &&
+ move.vanish[0].p == V.PAWN &&
+ Math.abs(move.end.x - move.start.x) == 2
+ ) {
+ // This move turns off a 2-squares pawn flag
this.pawnFlags[move.start.x == 6 ? "w" : "b"][move.start.y] = false;
+ }
}
this.cmoves.push(this.getCmove(move));
}
notation += "=" + move.appear[0].p.toUpperCase();
return notation;
}
+
};