X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=public%2Fjavascripts%2Fvariants%2FExtinction.js;fp=public%2Fjavascripts%2Fvariants%2FExtinction.js;h=0000000000000000000000000000000000000000;hb=625022fdcf750f0aff8fcd699f7e9b89730e1d10;hp=aab359f8a0fd1c48db871b033d51a2516442f65f;hpb=b955c65b942d09d24b5c3bed0d755d4f2f8f71f1;p=vchess.git diff --git a/public/javascripts/variants/Extinction.js b/public/javascripts/variants/Extinction.js deleted file mode 100644 index aab359f8..00000000 --- a/public/javascripts/variants/Extinction.js +++ /dev/null @@ -1,137 +0,0 @@ -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 - } - }; - } - - 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); - - 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 { return this.material[color][p] == 0; })) - { - return this.checkGameEnd(); - } - return "*"; - } - - return this.checkGameEnd(); //NOTE: currently unreachable... - } - - checkGameEnd() - { - return (this.turn == "w" ? "0-1" : "1-0"); - } - - 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(); - } -}