--- /dev/null
+import { ChessRules, PiPo, Move } from "@/base_rules";
+import { ArrayFun } from "@/utils/array";
+
+export class ShinobiRules extends ChessRules {
+
+ /* Would be unused:
+ static get PawnSpecs() {
+ return Object.assign(
+ { promotions: [V.PAWN] },
+ ChessRules.PawnSpecs
+ );
+ } */
+
+ static get CAPTAIN() {
+ return 'c';
+ }
+ static get NINJA() {
+ return 'j';
+ }
+ static get SAMURAI() {
+ return 's';
+ }
+ static get MONK() {
+ return 'm';
+ }
+ static get HORSE() {
+ return 'h';
+ }
+ static get LANCE() {
+ return 'l';
+ }
+
+ static get PIECES() {
+ return (
+ ChessRules.PIECES
+ .concat([V.CAPTAIN, V.NINJA, V.SAMURAI, V.MONK, V.HORSE, V.LANCE])
+ );
+ }
+
+ getPpath(b) {
+ if (b[0] == 'b' && b[1] != 'c') return b;
+ return "Shinobi/" + b;
+ }
+
+ getReservePpath(index, color) {
+ return "Shinobi/" + color + V.RESERVE_PIECES[index];
+ }
+
+ static IsGoodFen(fen) {
+ if (!ChessRules.IsGoodFen(fen)) return false;
+ const fenParsed = V.ParseFen(fen);
+ // 5) Check reserve
+ if (!fenParsed.reserve || !fenParsed.reserve.match(/^[0-9]{6,6}$/))
+ return false;
+ return true;
+ }
+
+ static ParseFen(fen) {
+ const fenParts = fen.split(" ");
+ return Object.assign(
+ ChessRules.ParseFen(fen),
+ { reserve: fenParts[5] }
+ );
+ }
+
+ // In hand initially: another captain, a ninja + a samurai,
+ // and 2 x monk, horse, lance (TODO)
+ static GenRandInitFen(randomness) {
+ const baseFen = ChessRules.GenRandInitFen(Math.min(randomness, 1));
+ return (
+ baseFen.substr(0, 33) + "3CK3 " +
+ "w 0 " + baseFen.substr(38, 2) + " - 111222"
+ );
+ }
+
+ getFen() {
+ return super.getFen() + " " + this.getReserveFen();
+ }
+
+ getFenForRepeat() {
+ return super.getFenForRepeat() + "_" + this.getReserveFen();
+ }
+
+ getReserveFen() {
+ // TODO: can simplify other drops variants with this code:
+ return Object.values(this.reserve['w']).join("");
+ }
+
+ setOtherVariables(fen) {
+ super.setOtherVariables(fen);
+ const reserve =
+ V.ParseFen(fen).reserve.split("").map(x => parseInt(x, 10));
+ this.reserve = {
+ w: {
+ [V.CAPTAIN]: reserve[0],
+ [V.NINJA]: reserve[1],
+ [V.SAMURAI]: reserve[2],
+ [V.MONK]: reserve[3],
+ [V.HORSE]: reserve[4]
+ [V.LANCE]: reserve[5]
+ }
+ };
+ }
+
+ getColor(i, j) {
+ if (i >= V.size.x) return i == V.size.x ? "w" : "b";
+ return this.board[i][j].charAt(0);
+ }
+
+ getPiece(i, j) {
+ if (i >= V.size.x) return V.RESERVE_PIECES[j];
+ return this.board[i][j].charAt(1);
+ }
+
+ // Ordering on reserve pieces
+ static get RESERVE_PIECES() {
+ return [V.CAPTAIN, V.NINJA, V.SAMURAI, V.MONK, V.HORSE, V.LANCE];
+ }
+
+ getReserveMoves([x, y]) {
+ // color == 'w', no drops for black.
+ const p = V.RESERVE_PIECES[y];
+ if (this.reserve['w'][p] == 0) return [];
+ let moves = [];
+ for (let i of [4, 5, 6, 7]) {
+ for (let j = 0; j < V.size.y; j++) {
+ if (this.board[i][j] == V.EMPTY) {
+ let mv = new Move({
+ appear: [
+ new PiPo({
+ x: i,
+ y: j,
+ c: color,
+ p: p
+ })
+ ],
+ vanish: [],
+ start: { x: x, y: y },
+ end: { x: i, y: j }
+ });
+ moves.push(mv);
+ }
+ }
+ }
+ return moves;
+ }
+
+ static get MapUnpromoted() {
+ return {
+ m: 'b',
+ h: 'n',
+ l: 'r',
+ p: 'c'
+ };
+ }
+
+ getPotentialMovesFrom([x, y]) {
+ if (x >= V.size.x) {
+ // Reserves, outside of board: x == sizeX(+1)
+ if (this.turn == 'b') return [];
+ return this.getReserveMoves([x, y]);
+ }
+ // Standard moves
+ const piece = this.getPiece(x, y);
+ const sq = [x, y];
+ if (ChessRules.includes(piece)) return super.getPotentialMovesFrom(sq);
+ switch (piece) {
+ case V.KING: return super.getPotentialKingMoves(sq);
+ case V.CAPTAIN: return this.getPotentialCaptainMoves(sq);
+ case V.NINJA: return this.getPotentialNinjaMoves(sq);
+ case V.SAMURAI: return this.getPotentialSamuraiMoves(sq);
+ }
+ let moves = [];
+ switch (piece) {
+ // Unpromoted
+ case V.PAWN:
+ moves = super.getPotentialPawnMoves(sq);
+ case V.MONK:
+ moves = this.getPotentialMonkMoves(sq);
+ break;
+ case V.HORSE:
+ moves = this.getPotentialHorseMoves(sq);
+ break;
+ case V.LANCE:
+ moves = this.getPotentialLanceMoves(sq);
+ break;
+ }
+ const promotionZone = (this.turn == 'w' ? [0, 1, 2] : [5, 6, 7]);
+ const promotedForm = V.MapUnpromoted[piece];
+ moves.forEach(m => {
+ if (promotionZone.includes(m.end.x)) move.appear[0].p = promotedForm;
+ });
+ return moves;
+ }
+
+ getPotentialCaptainMoves([x, y]) {
+ }
+
+ // TODO: adapt...
+ getPotentialNinjaMoves(sq) {
+ return super.getSlideNJumpMoves(sq, V.steps[V.BISHOP], "oneStep");
+ }
+
+ getPotentialSamuraiMoves(sq) {
+ const steps = V.steps[V.ROOK].concat(V.steps[V.BISHOP]);
+ return super.getSlideNJumpMoves(sq, steps, "oneStep");
+ }
+
+ getPotentialMonkMoves(sq) {
+ return (
+ super.getSlideNJumpMoves(sq, V.steps[V.ROOK])
+ .concat(super.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep"))
+ );
+ }
+
+ getPotentialHorseMoves(sq) {
+ const steps =
+ V.steps[V.BISHOP].concat(V.steps[V.ROOK]).concat(V.steps[V.KNIGHT]);
+ return super.getSlideNJumpMoves(sq, steps, "oneStep");
+ }
+
+ getPotentialLanceMoves(sq) {
+ return (
+ super.getSlideNJumpMoves(sq, V.steps[V.BISHOP])
+ .concat(super.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep"))
+ );
+ }
+
+ isAttacked(sq, color) {
+ if (color == 'b')
+ return (super.isAttacked(sq, 'b') || this.isAttackedByCaptain(sq, 'b'));
+ // Attacked by white:
+ return (
+ super.isAttackedByKing(sq, 'w') ||
+ this.isAttackedByCaptain(sq, 'w') ||
+ this.isAttackedByNinja(sq, 'w')
+ this.isAttackedBySamurai(sq, 'w')
+ this.isAttackedByMonk(sq, 'w') ||
+ this.isAttackedByHorse(sq, 'w') ||
+ this.isAttackedByLance(sq, 'w') ||
+ super.isAttackedByBishop(sq, 'w') ||
+ super.isAttackedByKnight(sq, 'w') ||
+ super.isAttackedByRook(sq, 'w')
+ );
+ }
+
+ isAttackedByCaptain(sq, color) {
+ const steps = V.steps[V.BISHOP].concat(V.steps[V.ROOK]);
+ return (
+ super.isAttackedBySlideNJump(sq, color, V.DUCHESS, steps, "oneStep")
+ );
+ }
+
+ isAttackedByNinja(sq, color) {
+ return (
+ super.isAttackedBySlideNJump(
+ sq, color, V.DUCHESS, V.steps[V.BISHOP], "oneStep")
+ );
+ }
+
+ isAttackedBySamurai(sq, color) {
+ return (
+ super.isAttackedBySlideNJump(sq, color, V.MORTAR, V.steps[V.ROOK]) ||
+ super.isAttackedBySlideNJump(
+ sq, color, V.MORTAR, V.steps[V.KNIGHT], "oneStep")
+ );
+ }
+
+ isAttackedByMonk(sq, color) {
+ const steps =
+ V.steps[V.BISHOP].concat(V.steps[V.ROOK]).concat(V.steps[V.KNIGHT]);
+ return (
+ super.isAttackedBySlideNJump(sq, color, V.GENERAL, steps, "oneStep")
+ );
+ }
+
+ isAttackedByHorse(sq, color) {
+ return (
+ super.isAttackedBySlideNJump(sq, color, V.ARCHBISHOP, V.steps[V.BISHOP])
+ ||
+ super.isAttackedBySlideNJump(
+ sq, color, V.ARCHBISHOP, V.steps[V.KNIGHT], "oneStep")
+ );
+ }
+
+ isAttackedByLance(sq, color) {
+ return (
+ super.isAttackedBySlideNJump(sq, color, V.ARCHBISHOP, V.steps[V.BISHOP])
+ ||
+ super.isAttackedBySlideNJump(
+ sq, color, V.ARCHBISHOP, V.steps[V.KNIGHT], "oneStep")
+ );
+ }
+
+ getAllValidMoves() {
+ let moves = super.getAllPotentialMoves();
+ const color = this.turn;
+ for (let i = 0; i < V.RESERVE_PIECES.length; i++) {
+ moves = moves.concat(
+ this.getReserveMoves([V.size.x + (color == "w" ? 0 : 1), i])
+ );
+ }
+ return this.filterValid(moves);
+ }
+
+ atLeastOneMove() {
+ if (!super.atLeastOneMove()) {
+ // Search one reserve move
+ for (let i = 0; i < V.RESERVE_PIECES.length; i++) {
+ let moves = this.filterValid(
+ this.getReserveMoves([V.size.x + (this.turn == "w" ? 0 : 1), i])
+ );
+ if (moves.length > 0) return true;
+ }
+ return false;
+ }
+ return true;
+ }
+
+ // TODO: only black can castle (see Orda)
+
+ postPlay(move) {
+ super.postPlay(move);
+ // Skip castle:
+ if (move.vanish.length == 2 && move.appear.length == 2) return;
+ const color = move.appear[0].c;
+ if (move.vanish.length == 0) this.reserve[color][move.appear[0].p]--;
+ }
+
+ postUndo(move) {
+ super.postUndo(move);
+ if (move.vanish.length == 2 && move.appear.length == 2) return;
+ const color = this.turn;
+ if (move.vanish.length == 0) this.reserve[color][move.appear[0].p]++;
+ }
+
+ /*
+ static get SEARCH_DEPTH() {
+ return 2;
+ } */
+
+ // TODO:
+ static get VALUES() {
+ return (
+ Object.assign(
+ {
+ c: 4,
+ g: 5,
+ a: 7,
+ m: 7,
+ f: 2
+ },
+ ChessRules.VALUES
+ )
+ );
+ }
+
+ evalPosition() {
+ let evaluation = super.evalPosition();
+ // Add reserves:
+ for (let i = 0; i < V.RESERVE_PIECES.length; i++) {
+ const p = V.RESERVE_PIECES[i];
+ evaluation += this.reserve["w"][p] * V.VALUES[p];
+ evaluation -= this.reserve["b"][p] * V.VALUES[p];
+ }
+ return evaluation;
+ }
+
+ getNotation(move) {
+ if (move.vanish.length > 0) return super.getNotation(move);
+ // Drop:
+ const piece =
+ move.appear[0].p != V.PAWN ? move.appear[0].p.toUpperCase() : "";
+ return piece + "@" + V.CoordsToSquare(move.end);
+ }
+
+};
projects / vchess.git / blobdiff