From: Benjamin Auder Date: Mon, 18 Jan 2021 01:56:44 +0000 (+0100) Subject: Early draft of Fanorona X-Git-Url: https://git.auder.net/variants/current/doc/css/pieces/%7B%7B?a=commitdiff_plain;h=08909cf4fc514e056d04f14086ddccc098f3ec75;p=vchess.git Early draft of Fanorona --- diff --git a/client/public/images/pieces/Fanorona/bp.svg b/client/public/images/pieces/Fanorona/bp.svg new file mode 100644 index 00000000..a6ea9214 --- /dev/null +++ b/client/public/images/pieces/Fanorona/bp.svg @@ -0,0 +1,9 @@ + + + + + + + + + diff --git a/client/public/images/pieces/Fanorona/wp.svg b/client/public/images/pieces/Fanorona/wp.svg new file mode 100644 index 00000000..2796fe99 --- /dev/null +++ b/client/public/images/pieces/Fanorona/wp.svg @@ -0,0 +1,9 @@ + + + + + + + + + diff --git a/client/public/images/pieces/Konane/SOURCE b/client/public/images/pieces/Yote/SOURCE similarity index 100% rename from client/public/images/pieces/Konane/SOURCE rename to client/public/images/pieces/Yote/SOURCE diff --git a/client/src/variants/Fanorona.js b/client/src/variants/Fanorona.js index 9f1db3a1..bd92c859 100644 --- a/client/src/variants/Fanorona.js +++ b/client/src/variants/Fanorona.js @@ -1,7 +1,177 @@ -import { ChessRules } from "@/base_rules"; +import { ChessRules, Move, PiPo } from "@/base_rules"; +import { randInt } from "@/utils/alea"; export class FanoronaRules extends ChessRules { - // TODO + static get HasFlags() { + return false; + } + + static get HasEnpassant() { + return false; + } + + static get Monochrome() { + return true; + } + + static get Lines() { + let lines = []; + // Draw all inter-squares lines, shifted: + for (let i = 0; i < V.size.x; i++) + lines.push([[i+0.5, 0.5], [i+0.5, V.size.y-0.5]]); + for (let j = 0; j < V.size.y; j++) + lines.push([[0.5, j+0.5], [V.size.x-0.5, j+0.5]]); + const columnDiags = [ + [[0.5, 0.5], [2.5, 2.5]], + [[0.5, 2.5], [2.5, 0.5]], + [[2.5, 0.5], [4.5, 2.5]], + [[4.5, 0.5], [2.5, 2.5]] + ]; + for (let j of [0, 2, 4, 6]) { + lines = lines.concat( + columnDiags.map(L => [[L[0][0], L[0][1] + j], [L[1][0], L[1][1] + j]]) + ); + } + return lines; + } + + static get Notoodark() { + return true; + } + + static GenRandInitFen() { + return "ppppppppp/ppppppppp/pPpP1pPpP/PPPPPPPPP/PPPPPPPPP w 0"; + } + + setOtherVariables(fen) { + // Local stack of captures during a turn (squares + directions) + this.captures = []; + } + + static get size() { + return { x: 5, y: 9 }; + } + + static get PIECES() { + return [V.PAWN]; + } + + getPiece() { + return V.PAWN; + } + + getPpath(b) { + return "Fanorona/" + b; + } + + //TODO + //getPPpath() {} + + getPotentialMovesFrom([x, y]) { + // NOTE: (x + y) % 2 == 0 ==> has diagonals + // TODO + // Même stratégie que Yote, revenir sur ses pas si stop avant de tout capturer + // Mais première capture obligatoire (si this.captures.length == 0). + // After a capture: allow only capturing. + // Warning: case 3 on Wikipedia page, if both percussion & aspiration, + // two different moves, cannot take all ==> adjust getPPpath showing arrows. + // nice looking arrows, with something representing a capture at its end... + return []; + } + + filterValid(moves) { + return moves; + } + + getCheckSquares() { + return []; + } + + //TODO: function aux to detect if continuation captures + //(not trivial, but not difficult) + + play(move) { + const color = this.turn; + move.turn = color; //for undo + const captureNotEnding = ( + move.vanish.length >= 2 && + true //TODO: detect if there are continuation captures + ); + this.captures.push(captureNotEnding); //TODO: something more structured + //with square + direction of capture + if (captureNotEnding) move.notTheEnd = true; + else { + this.turn = oppCol; + this.movesCount++; + } + this.postPlay(move); + } + + undo(move) { + V.UndoOnBoard(this.board, move); + this.captures.pop(); + if (move.turn != this.turn) { + this.turn = move.turn; + this.movesCount--; + } + this.postUndo(move); + } + + getCurrentScore() { + const color = this.turn; + // If no stones on board, I lose + if ( + this.board.every(b => { + return b.every(cell => { + return (cell == "" || cell[0] != color); + }); + }) + ) { + return (color == 'w' ? "0-1" : "1-0"); + } + return "*"; + } + + getComputerMove() { + const moves = super.getAllValidMoves(); + if (moves.length == 0) return null; + const color = this.turn; + // Capture available? If yes, play it + let captures = moves.filter(m => m.vanish.length >= 2); + let mvArray = []; + while (captures.length >= 1) { + // Then just pick random captures (trying to maximize) + let candidates = captures.filter(c => !!c.notTheEnd); + let mv = null; + if (candidates.length >= 1) mv = candidates[randInt(candidates.length)]; + else mv = captures[randInt(captures.length)]; + this.play(mv); + captures = (this.turn == color ? super.getAllValidMoves() : []); + } + if (mvArray.length >= 1) { + for (let i = mvArray.length - 1; i >= 0; i--) this.undo(mvArray[i]); + return mvArray; + } + // Just play a random move, which if possible do not let a capture + let candidates = []; + for (let m of moves) { + this.play(m); + const moves2 = super.getAllValidMoves(); + if (moves2.every(m2 => m2.vanish.length <= 1)) + candidates.push(m); + this.undo(m); + } + if (candidates.length >= 1) return candidates[randInt(candidates.length)]; + return moves[randInt(moves.length)]; + } + + getNotation(move) { + return ( + V.CoordsToSquare(move.start) + + (move.vanish.length >= 2 ? "x" : "") + + V.CoordsToSquare(move.end) + ); + } }; diff --git a/client/src/variants/Yote.js b/client/src/variants/Yote.js index 0b967861..7158d4f4 100644 --- a/client/src/variants/Yote.js +++ b/client/src/variants/Yote.js @@ -435,14 +435,6 @@ export class YoteRules extends ChessRules { return moves[randInt(moves.length)]; } - evalPosition() { - let evaluation = super.evalPosition(); - // Add reserves: - evaluation += this.reserve["w"][V.PAWN]; - evaluation -= this.reserve["b"][V.PAWN]; - return evaluation; - } - getNotation(move) { if (move.vanish.length == 0) // Placement: