X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FLosers.js;h=ea2838096ff8b1d5196d58a2d6a53f312c231e37;hb=0fb43db7c2858201e8410670b90f95ad8b138964;hp=d752f984bc4f5375ba3b23eba44f7694d812c979;hpb=6b7b2cf720e6255e4da0dc34fee363c456346a58;p=vchess.git diff --git a/client/src/variants/Losers.js b/client/src/variants/Losers.js index d752f984..ea283809 100644 --- a/client/src/variants/Losers.js +++ b/client/src/variants/Losers.js @@ -2,24 +2,28 @@ import { ChessRules } from "@/base_rules"; import { ArrayFun } from "@/utils/array"; import { randInt } from "@/utils/alea"; -export const VariantRules = class LosersRules extends ChessRules { +export class LosersRules extends ChessRules { + // Trim all non-capturing moves static KeepCaptures(moves) { - return moves.filter(m => m.vanish.length == 2); + return moves.filter(m => m.vanish.length == 2 && m.appear.length == 1); } - // Stop at the first capture found (if any) + // Stop at the first capture found (if any) atLeastOneCapture() { const color = this.turn; - const oppCol = V.GetOppCol(color); for (let i = 0; i < V.size.x; i++) { for (let j = 0; j < V.size.y; j++) { if ( this.board[i][j] != V.EMPTY && - this.getColor(i, j) != oppCol && - this.getPotentialMovesFrom([i, j]).some(m => - // Warning: duscard castle moves - m.vanish.length == 2 && m.appear.length == 1) + this.getColor(i, j) == color && + this.getPotentialMovesFrom([i, j]).some(m => { + return ( + // Warning: discard castle moves + m.vanish.length == 2 && m.appear.length == 1 && + this.filterValid([m]).length == 1 + ); + }) ) { return true; } @@ -38,7 +42,8 @@ export const VariantRules = class LosersRules extends ChessRules { getAllValidMoves() { const moves = super.getAllValidMoves(); - if (moves.some(m => m.vanish.length == 2)) return V.KeepCaptures(moves); + if (moves.some(m => m.vanish.length == 2 && m.appear.length == 1)) + return V.KeepCaptures(moves); return moves; } @@ -64,12 +69,9 @@ export const VariantRules = class LosersRules extends ChessRules { return this.turn == "w" ? "1-0" : "0-1"; } - static get SEARCH_DEPTH() { - return 4; - } - evalPosition() { // Less material is better (more subtle in fact but...) return -super.evalPosition(); } + };