| 1 | import { ChessRules } from "@/base_rules"; |
| 2 | |
| 3 | export class QueenpawnsRules extends ChessRules { |
| 4 | |
| 5 | static get PawnSpecs() { |
| 6 | return Object.assign( |
| 7 | {}, |
| 8 | ChessRules.PawnSpecs, |
| 9 | // The promotion piece doesn't matter, the game is won |
| 10 | { promotions: [V.QUEEN] } |
| 11 | ); |
| 12 | } |
| 13 | |
| 14 | static get HasFlags() { |
| 15 | return false; |
| 16 | } |
| 17 | |
| 18 | scanKings() {} |
| 19 | |
| 20 | static GenRandInitFen() { |
| 21 | return "3q4/8/8/8/8/8/PPPPPPPP/8 w 0 -"; |
| 22 | } |
| 23 | |
| 24 | filterValid(moves) { |
| 25 | return moves; |
| 26 | } |
| 27 | |
| 28 | getCheckSquares() { |
| 29 | return []; |
| 30 | } |
| 31 | |
| 32 | getCurrentScore() { |
| 33 | // If all pieces of some color vanished, the opponent wins: |
| 34 | for (let c of ['w', 'b']) { |
| 35 | if (this.board.every(b => b.every(cell => !cell || cell[0] != c))) |
| 36 | return (c == 'w' ? "0-1" : "1-0"); |
| 37 | } |
| 38 | // Did a white pawn promote? Can the queen (in turn) take it? |
| 39 | const qIdx = this.board[0].findIndex(cell => cell == "wq"); |
| 40 | if ( |
| 41 | qIdx >= 0 && |
| 42 | (this.turn == 'w' || !super.isAttackedByQueen([0, qIdx], 'b')) |
| 43 | ) { |
| 44 | return "1-0"; |
| 45 | } |
| 46 | if (!this.atLeastOneMove()) return "1/2"; |
| 47 | return "*"; |
| 48 | } |
| 49 | |
| 50 | postPlay() {} |
| 51 | postUndo() {} |
| 52 | |
| 53 | static get SEARCH_DEPTH() { |
| 54 | return 4; |
| 55 | } |
| 56 | |
| 57 | }; |