X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FExtinction.js;h=8896292acd26bfd31f42e92df2460481824f57b5;hb=d7c00f6a7d6ad573df2a27965bf763b3bb1d0c18;hp=aab359f8a0fd1c48db871b033d51a2516442f65f;hpb=8d61fc4ab7373b4a576f3f9108cdf7768ae27096;p=vchess.git diff --git a/client/src/variants/Extinction.js b/client/src/variants/Extinction.js index aab359f8..8896292a 100644 --- a/client/src/variants/Extinction.js +++ b/client/src/variants/Extinction.js @@ -1,137 +1,147 @@ -class ExtinctionRules extends ChessRules -{ - setOtherVariables(fen) - { - super.setOtherVariables(fen); - const pos = V.ParseFen(fen).position; - // NOTE: no need for safety "|| []", because each piece type must be present - // (otherwise game is already over!) - this.material = - { - "w": - { - [V.KING]: pos.match(/K/g).length, - [V.QUEEN]: pos.match(/Q/g).length, - [V.ROOK]: pos.match(/R/g).length, - [V.KNIGHT]: pos.match(/N/g).length, - [V.BISHOP]: pos.match(/B/g).length, - [V.PAWN]: pos.match(/P/g).length - }, - "b": - { - [V.KING]: pos.match(/k/g).length, - [V.QUEEN]: pos.match(/q/g).length, - [V.ROOK]: pos.match(/r/g).length, - [V.KNIGHT]: pos.match(/n/g).length, - [V.BISHOP]: pos.match(/b/g).length, - [V.PAWN]: pos.match(/p/g).length - } - }; - } +import { ChessRules } from "@/base_rules"; - getPotentialPawnMoves([x,y]) - { - let moves = super.getPotentialPawnMoves([x,y]); - // Add potential promotions into king - const color = this.turn; - const shift = (color == "w" ? -1 : 1); - const lastRank = (color == "w" ? 0 : V.size.x-1); +export const VariantRules = class ExtinctionRules extends ChessRules { + static IsGoodPosition(position) { + if (!ChessRules.IsGoodPosition(position)) + return false; + // Also check that each piece type is present + const rows = position.split("/"); + let pieces = {}; + for (let row of rows) { + for (let i = 0; i < row.length; i++) { + if (isNaN(parseInt(row[i])) && !pieces[row[i]]) + pieces[row[i]] = true; + } + } + if (Object.keys(pieces).length != 12) + return false; + return true; + } - if (x+shift == lastRank) - { - // Normal move - if (this.board[x+shift][y] == V.EMPTY) - moves.push(this.getBasicMove([x,y], [x+shift,y], {c:color,p:V.KING})); - // Captures - if (y>0 && this.board[x+shift][y-1] != V.EMPTY - && this.canTake([x,y], [x+shift,y-1])) - { - moves.push(this.getBasicMove([x,y], [x+shift,y-1], {c:color,p:V.KING})); - } - if (y 0 && + this.board[x + shift][y - 1] != V.EMPTY && + this.canTake([x, y], [x + shift, y - 1]) + ) { + moves.push( + this.getBasicMove([x, y], [x + shift, y - 1], { c: color, p: V.KING }) + ); + } + if ( + y < V.size.y - 1 && + this.board[x + shift][y + 1] != V.EMPTY && + this.canTake([x, y], [x + shift, y + 1]) + ) { + moves.push( + this.getBasicMove([x, y], [x + shift, y + 1], { c: color, p: V.KING }) + ); + } + } - underCheck(color) - { - return false; //there is no check - } + return moves; + } - getCheckSquares(color) - { - return []; - } + // TODO: verify this assertion + atLeastOneMove() { + return true; //always at least one possible move + } - updateVariables(move) - { - super.updateVariables(move); - // Treat the promotion case: (not the capture part) - if (move.appear[0].p != move.vanish[0].p) - { - this.material[move.appear[0].c][move.appear[0].p]++; - this.material[move.appear[0].c][V.PAWN]--; - } - if (move.vanish.length==2 && move.appear.length==1) //capture - this.material[move.vanish[1].c][move.vanish[1].p]--; - } + underCheck() { + return false; //there is no check + } - unupdateVariables(move) - { - super.unupdateVariables(move); - if (move.appear[0].p != move.vanish[0].p) - { - this.material[move.appear[0].c][move.appear[0].p]--; - this.material[move.appear[0].c][V.PAWN]++; - } - if (move.vanish.length==2 && move.appear.length==1) - this.material[move.vanish[1].c][move.vanish[1].p]++; - } + getCheckSquares() { + return []; + } - checkGameOver() - { - if (this.checkRepetition()) - return "1/2"; + updateVariables(move) { + super.updateVariables(move); + // Treat the promotion case: (not the capture part) + if (move.appear[0].p != move.vanish[0].p) { + this.material[move.appear[0].c][move.appear[0].p]++; + this.material[move.appear[0].c][V.PAWN]--; + } + if (move.vanish.length == 2 && move.appear.length == 1) + //capture + this.material[move.vanish[1].c][move.vanish[1].p]--; + } - if (this.atLeastOneMove()) // game not over? - { - const color = this.turn; - if (Object.keys(this.material[color]).some( - p => { return this.material[color][p] == 0; })) - { - return this.checkGameEnd(); - } - return "*"; - } + unupdateVariables(move) { + super.unupdateVariables(move); + if (move.appear[0].p != move.vanish[0].p) { + this.material[move.appear[0].c][move.appear[0].p]--; + this.material[move.appear[0].c][V.PAWN]++; + } + if (move.vanish.length == 2 && move.appear.length == 1) + this.material[move.vanish[1].c][move.vanish[1].p]++; + } - return this.checkGameEnd(); //NOTE: currently unreachable... - } + getCurrentScore() { + if (this.atLeastOneMove()) { + // game not over? + const color = this.turn; + if ( + Object.keys(this.material[color]).some(p => { + return this.material[color][p] == 0; + }) + ) { + return this.turn == "w" ? "0-1" : "1-0"; + } + return "*"; + } - checkGameEnd() - { - return (this.turn == "w" ? "0-1" : "1-0"); - } + return this.turn == "w" ? "0-1" : "1-0"; //NOTE: currently unreachable... + } - evalPosition() - { - const color = this.turn; - if (Object.keys(this.material[color]).some( - p => { return this.material[color][p] == 0; })) - { - // Very negative (resp. positive) if white (reps. black) pieces set is incomplete - return (color=="w"?-1:1) * V.INFINITY; - } - return super.evalPosition(); - } -} + evalPosition() { + const color = this.turn; + if ( + Object.keys(this.material[color]).some(p => { + return this.material[color][p] == 0; + }) + ) { + // Very negative (resp. positive) if white (reps. black) pieces set is incomplete + return (color == "w" ? -1 : 1) * V.INFINITY; + } + return super.evalPosition(); + } +};