export class PacosakoRules extends ChessRules {
+ static get Options() {
+ return {
+ select: ChessRules.Options.select,
+ check: [
+ {
+ label: "pacoplay mode",
+ variable: "pacoplay",
+ defaut: false
+ }
+ ]
+ };
+ }
+
static get IMAGE_EXTENSION() {
return ".png";
}
}
setOtherVariables(fen) {
- super.setOtherVariables(fen);
// Stack of "last move" only for intermediate chaining
this.lastMoveEnd = [null];
// Local stack of non-capturing union moves:
this.umoves = [];
const umove = V.ParseFen(fen).umove;
- if (umove == "-") this.umoves.push(null);
- else {
- this.umoves.push({
- start: ChessRules.SquareToCoords(umove.substr(0, 2)),
- end: ChessRules.SquareToCoords(umove.substr(2))
- });
+ this.pacoplay = !umove; //"pacoplay.com mode" ?
+ if (!this.pacoplay) {
+ if (umove == "-") this.umoves.push(null);
+ else {
+ this.umoves.push({
+ start: ChessRules.SquareToCoords(umove.substr(0, 2)),
+ end: ChessRules.SquareToCoords(umove.substr(2))
+ });
+ }
}
// Local stack of positions to avoid redundant moves:
this.repetitions = [];
+ super.setOtherVariables(fen);
}
static IsGoodFen(fen) {
}
static IsGoodFlags(flags) {
- // 4 for castle + 16 for pawns
- return !!flags.match(/^[a-z]{4,4}[01]{16,16}$/);
+ // 4 for castle + 16 for pawns (more permissive, for pacoplay mode)
+ return !!flags.match(/^[a-z]{4,4}[01]{0,16}$/);
}
setFlags(fenflags) {
super.setFlags(fenflags); //castleFlags
+ if (this.pacoplay) return;
this.pawnFlags = {
w: [...Array(8)], //pawns can move 2 squares?
b: [...Array(8)]
}
aggregateFlags() {
+ if (!this.pacoplay) return super.aggregateFlags();
return [this.castleFlags, this.pawnFlags];
}
disaggregateFlags(flags) {
- this.castleFlags = flags[0];
- this.pawnFlags = flags[1];
+ if (!this.pacoplay) super.disaggregateFlags(flags);
+ else {
+ this.castleFlags = flags[0];
+ this.pawnFlags = flags[1];
+ }
}
getUmove(move) {
static GenRandInitFen(options) {
// Add 16 pawns flags + empty umove:
- return ChessRules.GenRandInitFen(options)
- .slice(0, -2) + "1111111111111111 - -";
+ const pawnFlags = (options.pacoplay ? "" : "1111111111111111");
+ return ChessRules.GenRandInitFen(options).slice(0, -2) +
+ pawnFlags + " -" + (!options.pacoplay ? " -" : "");
}
getFlagsFen() {
let fen = super.getFlagsFen();
- // Add pawns flags
- for (let c of ["w", "b"])
- for (let i = 0; i < 8; i++) fen += (this.pawnFlags[c][i] ? "1" : "0");
+ if (!this.pacoplay) {
+ // Add pawns flags
+ for (let c of ["w", "b"])
+ for (let i = 0; i < 8; i++) fen += (this.pawnFlags[c][i] ? "1" : "0");
+ }
return fen;
}
}
getFen() {
- return super.getFen() + " " + this.getUmoveFen();
+ const umoveFen = this.pacoplay ? "" : (" " + this.getUmoveFen());
+ return super.getFen() + umoveFen;
}
getFenForRepeat() {
- return super.getFenForRepeat() + "_" + this.getUmoveFen();
+ const umoveFen = this.pacoplay ? "" : ("_" + this.getUmoveFen());
+ return super.getFenForRepeat() + umoveFen;
}
getColor(i, j) {
(
m.start.x == firstRank ||
Math.abs(m.end.x - m.start.x) == 1 ||
- this.pawnFlags[c][m.start.y]
+ this.pacoplay ||
+ (!this.pacoplay && this.pawnFlags[c][m.start.y])
)
&&
(
return moves;
}
+ getPotentialKingMoves(sq) {
+ if (!this.pacoplay) return super.getPotentialKingMoves(sq);
+ // Initialize with normal moves, without captures
+ let moves = [];
+ for (let s of V.steps[V.ROOK].concat(V.steps[V.BISHOP])) {
+ const [i, j] = [sq[0] + s[0], sq[1] + s[1]];
+ if (V.OnBoard(i, j) && this.board[i][j] == V.EMPTY)
+ moves.push(this.getBasicMove(sq, [i, j]));
+ }
+ if (this.castleFlags[this.turn].some(v => v < V.size.y))
+ moves = moves.concat(this.getCastleMoves(sq));
+ return moves;
+ }
+
getEpSquare(moveOrSquare) {
if (typeof moveOrSquare === "string") {
const square = moveOrSquare;
filterValid(moves) {
if (moves.length == 0) return [];
- const L = this.umoves.length; //at least 1: init from FEN
+ const L = (!this.pacoplay ? this.umoves.length : 0);
return moves.filter(m => {
- if (this.oppositeMoves(this.umoves[L - 1], m)) return false;
+ if (L > 0 && this.oppositeMoves(this.umoves[L - 1], m)) return false;
if (!m.end.released) return true;
// Check for repetitions:
V.PlayOnBoard(this.board, m);
this.updateCastleFlags(move, piece);
const pawnFirstRank = (c == 'w' ? 6 : 1);
if (
+ !this.pacoplay &&
move.start.x == pawnFirstRank &&
piece == V.PAWN &&
Math.abs(move.end.x - move.start.x) == 2
});
}
V.PlayOnBoard(this.board, move);
- this.umoves.push(this.getUmove(move));
+ if (!this.pacoplay) this.umoves.push(this.getUmove(move));
if (!move.end.released) this.repetitions = [];
else {
this.repetitions.push(
this.turn = V.GetOppCol(this.turn);
this.movesCount--;
}
- this.umoves.pop();
+ if (!this.pacoplay) this.umoves.pop();
if (!!move.end.released) this.repetitions.pop();
this.postUndo(move);
}