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c322a844 BA |
1 | import { ChessRules, PiPo, Move } from "@/base_rules"; |
2 | ||
32f6285e | 3 | export class RifleRules extends ChessRules { |
c322a844 BA |
4 | getBasicMove([sx, sy], [ex, ey], tr) { |
5 | let mv = new Move({ | |
6 | appear: [], | |
7 | vanish: [], | |
8 | start: {x:sx, y:sy}, | |
9 | end: {x:ex, y:ey} | |
10 | }); | |
11 | if (this.board[ex][ey] != V.EMPTY) { | |
12 | // No movement: just vanishing enemy piece | |
13 | mv.vanish = [ | |
14 | new PiPo({ | |
15 | x: ex, | |
16 | y: ey, | |
17 | c: this.getColor(ex, ey), | |
18 | p: this.getPiece(ex, ey) | |
19 | }) | |
20 | ]; | |
21 | } | |
22 | else { | |
23 | // Normal move | |
24 | mv.appear = [ | |
25 | new PiPo({ | |
26 | x: ex, | |
27 | y: ey, | |
28 | c: tr ? tr.c : this.getColor(sx, sy), | |
29 | p: tr ? tr.p : this.getPiece(sx, sy) | |
30 | }) | |
31 | ]; | |
32 | mv.vanish = [ | |
33 | new PiPo({ | |
34 | x: sx, | |
35 | y: sy, | |
36 | c: this.getColor(sx, sy), | |
37 | p: this.getPiece(sx, sy) | |
38 | }) | |
39 | ]; | |
40 | } | |
41 | ||
42 | return mv; | |
43 | } | |
f35b9960 | 44 | |
32f6285e | 45 | getEnpassantCaptures([x, y], shiftX) { |
f35b9960 | 46 | let moves = []; |
f35b9960 BA |
47 | const Lep = this.epSquares.length; |
48 | const epSquare = this.epSquares[Lep - 1]; //always at least one element | |
49 | if ( | |
50 | !!epSquare && | |
51 | epSquare.x == x + shiftX && | |
52 | Math.abs(epSquare.y - y) == 1 | |
53 | ) { | |
54 | let enpassantMove = new Move({ | |
55 | appear: [], | |
56 | vanish: [], | |
57 | start: {x:x, y:y}, | |
58 | end: {x:x+shiftX, y:epSquare.y} | |
59 | }); | |
60 | enpassantMove.vanish.push({ | |
61 | x: x, | |
62 | y: epSquare.y, | |
63 | p: "p", | |
64 | c: this.getColor(x, epSquare.y) | |
65 | }); | |
66 | moves.push(enpassantMove); | |
67 | } | |
f35b9960 BA |
68 | return moves; |
69 | } | |
32f6285e BA |
70 | |
71 | static get SEARCH_DEPTH() { | |
72 | return 2; | |
73 | } | |
c322a844 | 74 | }; |