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9f88188c BA |
1 | import { ChessRules } from "@/base_rules"; |
2 | ||
3 | export class QueenpawnsRules extends ChessRules { | |
7e8a7ea1 | 4 | |
9f88188c BA |
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 | } | |
7e8a7ea1 | 56 | |
9f88188c | 57 | }; |