X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FShako.js;h=2701f1e2a1379d4f47a9b5591c5759c78e89546f;hb=89a6214b27561878670914a65902aa51682efe61;hp=ee694d010074753d29275d5c68db84544393970a;hpb=cd49e617866590dbc68530ad961b109cdbe1ce55;p=vchess.git diff --git a/client/src/variants/Shako.js b/client/src/variants/Shako.js index ee694d01..2701f1e2 100644 --- a/client/src/variants/Shako.js +++ b/client/src/variants/Shako.js @@ -3,6 +3,7 @@ import { ArrayFun } from "@/utils/array"; import { randInt, sample } from "@/utils/alea"; export class ShakoRules extends ChessRules { + static get PawnSpecs() { return Object.assign( {}, @@ -67,7 +68,7 @@ export class ShakoRules extends ChessRules { } getPotentialElephantMoves([x, y]) { - return this.getSlideNJumpMoves([x, y], V.steps[V.ELEPHANT], "oneStep"); + return this.getSlideNJumpMoves([x, y], V.steps[V.ELEPHANT], 1); } getPotentialCannonMoves([x, y]) { @@ -96,97 +97,11 @@ export class ShakoRules extends ChessRules { } getCastleMoves([x, y]) { - const c = this.getColor(x, y); - if (x != (c == "w" ? V.size.x - 2 : 1) || y != this.INIT_COL_KING[c]) - return []; //x isn't second rank, or king has moved (shortcut) - - // Castling ? - const oppCol = V.GetOppCol(c); - let moves = []; - let i = 0; - // King, then rook: const finalSquares = [ [3, 4], [7, 6] ]; - castlingCheck: for ( - let castleSide = 0; - castleSide < 2; - castleSide++ //large, then small - ) { - if (this.castleFlags[c][castleSide] >= V.size.y) continue; - // If this code is reached, rook and king are on initial position - - const rookPos = this.castleFlags[c][castleSide]; - - // Nothing on the path of the king ? (and no checks) - const castlingPiece = this.getPiece(x, rookPos); - const finDist = finalSquares[castleSide][0] - y; - let step = finDist / Math.max(1, Math.abs(finDist)); - i = y; - do { - if ( - this.isAttacked([x, i], oppCol) || - (this.board[x][i] != V.EMPTY && - // NOTE: next check is enough, because of chessboard constraints - (this.getColor(x, i) != c || - ![V.KING, castlingPiece].includes(this.getPiece(x, i)))) - ) { - continue castlingCheck; - } - i += step; - } while (i != finalSquares[castleSide][0]); - - // Nothing on the path to the rook? - step = castleSide == 0 ? -1 : 1; - for (i = y + step; i != rookPos; i += step) { - if (this.board[x][i] != V.EMPTY) continue castlingCheck; - } - - // Nothing on final squares, except maybe king and castling rook? - for (i = 0; i < 2; i++) { - if ( - finalSquares[castleSide][i] != rookPos && - this.board[x][finalSquares[castleSide][i]] != V.EMPTY && - ( - this.getPiece(x, finalSquares[castleSide][i]) != V.KING || - this.getColor(x, finalSquares[castleSide][i]) != c - ) - ) { - continue castlingCheck; - } - } - - // If this code is reached, castle is valid - moves.push( - new Move({ - appear: [ - new PiPo({ - x: x, - y: finalSquares[castleSide][0], - p: V.KING, - c: c - }), - new PiPo({ - x: x, - y: finalSquares[castleSide][1], - p: castlingPiece, - c: c - }) - ], - vanish: [ - new PiPo({ x: x, y: y, p: V.KING, c: c }), - new PiPo({ x: x, y: rookPos, p: castlingPiece, c: c }) - ], - end: - Math.abs(y - rookPos) <= 2 - ? { x: x, y: rookPos } - : { x: x, y: y + 2 * (castleSide == 0 ? -1 : 1) } - }) - ); - } - - return moves; + return super.getCastleMoves([x, y], finalSquares); } isAttacked(sq, color) { @@ -200,7 +115,7 @@ export class ShakoRules extends ChessRules { isAttackedByElephant(sq, color) { return ( this.isAttackedBySlideNJump( - sq, color, V.ELEPHANT, V.steps[V.ELEPHANT], "oneStep" + sq, color, V.ELEPHANT, V.steps[V.ELEPHANT], 1 ) ); } @@ -270,8 +185,8 @@ export class ShakoRules extends ChessRules { return 2; } - static GenRandInitFen(randomness) { - if (randomness == 0) { + static GenRandInitFen(options) { + if (options.randomness == 0) { return ( "c8c/ernbqkbnre/pppppppppp/91/91/91/91/PPPPPPPPPP/ERNBQKBNRE/C8C " + "w 0 bibi -" @@ -282,7 +197,7 @@ export class ShakoRules extends ChessRules { let flags = ""; // Shuffle pieces on second (and before-last rank if randomness == 2) for (let c of ["w", "b"]) { - if (c == 'b' && randomness == 1) { + if (c == 'b' && options.randomness == 1) { pieces['b'] = pieces['w']; flags += flags; break; @@ -337,4 +252,5 @@ export class ShakoRules extends ChessRules { " w 0 " + flags + " -" ); } + };