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c322a844 BA |
1 | import { ChessRules, PiPo, Move } from "@/base_rules"; |
2 | ||
32f6285e | 3 | export class RifleRules extends ChessRules { |
7e8a7ea1 | 4 | |
c322a844 BA |
5 | getBasicMove([sx, sy], [ex, ey], tr) { |
6 | let mv = new Move({ | |
7 | appear: [], | |
8 | vanish: [], | |
9 | start: {x:sx, y:sy}, | |
10 | end: {x:ex, y:ey} | |
11 | }); | |
12 | if (this.board[ex][ey] != V.EMPTY) { | |
13 | // No movement: just vanishing enemy piece | |
14 | mv.vanish = [ | |
15 | new PiPo({ | |
16 | x: ex, | |
17 | y: ey, | |
18 | c: this.getColor(ex, ey), | |
19 | p: this.getPiece(ex, ey) | |
20 | }) | |
21 | ]; | |
22 | } | |
23 | else { | |
24 | // Normal move | |
25 | mv.appear = [ | |
26 | new PiPo({ | |
27 | x: ex, | |
28 | y: ey, | |
29 | c: tr ? tr.c : this.getColor(sx, sy), | |
30 | p: tr ? tr.p : this.getPiece(sx, sy) | |
31 | }) | |
32 | ]; | |
33 | mv.vanish = [ | |
34 | new PiPo({ | |
35 | x: sx, | |
36 | y: sy, | |
37 | c: this.getColor(sx, sy), | |
38 | p: this.getPiece(sx, sy) | |
39 | }) | |
40 | ]; | |
41 | } | |
42 | ||
43 | return mv; | |
44 | } | |
f35b9960 | 45 | |
32f6285e | 46 | getEnpassantCaptures([x, y], shiftX) { |
f35b9960 | 47 | let moves = []; |
f35b9960 BA |
48 | const Lep = this.epSquares.length; |
49 | const epSquare = this.epSquares[Lep - 1]; //always at least one element | |
50 | if ( | |
51 | !!epSquare && | |
52 | epSquare.x == x + shiftX && | |
53 | Math.abs(epSquare.y - y) == 1 | |
54 | ) { | |
55 | let enpassantMove = new Move({ | |
56 | appear: [], | |
57 | vanish: [], | |
58 | start: {x:x, y:y}, | |
59 | end: {x:x+shiftX, y:epSquare.y} | |
60 | }); | |
61 | enpassantMove.vanish.push({ | |
62 | x: x, | |
63 | y: epSquare.y, | |
64 | p: "p", | |
65 | c: this.getColor(x, epSquare.y) | |
66 | }); | |
67 | moves.push(enpassantMove); | |
68 | } | |
f35b9960 BA |
69 | return moves; |
70 | } | |
32f6285e BA |
71 | |
72 | static get SEARCH_DEPTH() { | |
73 | return 2; | |
74 | } | |
7e8a7ea1 | 75 | |
c322a844 | 76 | }; |