+ // King can be l or L (immobilized) --> similar to Alice variant
+ static IsGoodPosition(position) {
+ if (position.length == 0) return false;
+ const rows = position.split("/");
+ if (rows.length != V.size.x) return false;
+ let kings = { "k": 0, "K": 0, 'l': 0, 'L': 0 };
+ for (let row of rows) {
+ let sumElts = 0;
+ for (let i = 0; i < row.length; i++) {
+ if (['K','k','L','l'].includes(row[i])) kings[row[i]]++;
+ if (V.PIECES.includes(row[i].toLowerCase())) sumElts++;
+ else {
+ const num = parseInt(row[i]);
+ if (isNaN(num)) return false;
+ sumElts += num;
+ }
+ }
+ if (sumElts != V.size.y) return false;
+ }
+ if (kings['k'] + kings['l'] != 1 || kings['K'] + kings['L'] != 1)
+ return false;
+ return true;
+ }
+
+ static IsGoodFlags(flags) {
+ // 4 for Peach + Mario w, b
+ return !!flags.match(/^[01]{4,4}$/);
+ }
+
+ setFlags(fenflags) {
+ this.powerFlags = {
+ w: [...Array(2)], //king can send shell? Queen can be invisible?
+ b: [...Array(2)]
+ };
+ for (let c of ["w", "b"]) {
+ for (let i = 0; i < 2; i++)
+ this.pawnFlags[c][i] = fenFlags.charAt((c == "w" ? 0 : 2) + i) == "1";
+ }
+ }
+
+ aggregateFlags() {
+ return this.powerFlags;
+ }
+
+ disaggregateFlags(flags) {
+ this.powerFlags = flags;
+ }
+
+ getFen() {
+ return super.getFen() + " " + this.getCapturedFen();
+ }
+
+ getFenForRepeat() {
+ return super.getFenForRepeat() + "_" + this.getCapturedFen();
+ }
+
+ getCapturedFen() {
+ let counts = [...Array(10).fill(0)];
+ let i = 0;
+ for (let p of [V.ROOK, V.KNIGHT, V.BISHOP, V.QUEEN, V.PAWN]) {
+ counts[i] = this.captured["w"][p];
+ counts[5 + i] = this.captured["b"][p];
+ i++;
+ }
+ return counts.join("");
+ }
+
+ setOtherVariables(fen) {
+ const fenParsed = V.ParseFen(fen);
+ // Initialize captured pieces' counts from FEN
+ this.captured = {
+ w: {
+ [V.ROOK]: parseInt(fenParsed.captured[0]),
+ [V.KNIGHT]: parseInt(fenParsed.captured[1]),
+ [V.BISHOP]: parseInt(fenParsed.captured[2]),
+ [V.QUEEN]: parseInt(fenParsed.captured[3]),
+ [V.PAWN]: parseInt(fenParsed.captured[4]),
+ },
+ b: {
+ [V.ROOK]: parseInt(fenParsed.captured[5]),
+ [V.KNIGHT]: parseInt(fenParsed.captured[6]),
+ [V.BISHOP]: parseInt(fenParsed.captured[7]),
+ [V.QUEEN]: parseInt(fenParsed.captured[8]),
+ [V.PAWN]: parseInt(fenParsed.captured[9]),
+ }
+ };
+ this.subTurn = 1;
+ }
+
+ getFlagsFen() {
+ let fen = "";
+ // Add power flags
+ for (let c of ["w", "b"])
+ for (let i = 0; i < 2; i++) fen += (this.powerFlags[c][i] ? "1" : "0");
+ return fen;
+ }
+
+ getPotentialMovesFrom(sq) {
+ if (this.subTurn == 1) return super.getPotentialMovesFrom(sq);
+ if (this.subTurn == 2) {
+ // TODO: coup compatible avec firstMove
+ }