Fix Maxima (immobilize kings too)
[vchess.git] / client / src / variants / Discoduel.js
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1import { ChessRules } from "@/base_rules";
2
3export class DiscoduelRules extends ChessRules {
7e8a7ea1 4
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5 static get Options() {
6 return null;
7 }
8
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9 static get PawnSpecs() {
10 return Object.assign(
11 {},
12 ChessRules.PawnSpecs,
13 { promotions: [V.PAWN] }
14 );
15 }
16
17 static get HasFlags() {
18 return false;
19 }
20
21 scanKings() {}
22
23 static GenRandInitFen() {
24 return "1n4n1/8/8/8/8/8/PPPPPPPP/8 w 0 -";
25 }
26
27 getPotentialMovesFrom(sq) {
28 const moves = super.getPotentialMovesFrom(sq);
29 if (this.turn == 'b')
30 // Prevent pawn captures on last rank:
31 return moves.filter(m => m.vanish.length == 1 || m.vanish[1].x != 0);
32 return moves;
33 }
34
35 filterValid(moves) {
36 return moves;
37 }
38
39 getCheckSquares() {
40 return [];
41 }
42
43 getCurrentScore() {
44 // No real winning condition (promotions count...)
45 if (!this.atLeastOneMove()) return "1/2";
46 return "*";
47 }
48
49 postPlay() {}
50 postUndo() {}
51
52 static get SEARCH_DEPTH() {
53 return 4;
54 }
7e8a7ea1 55
737a5daf 56};