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a548cb4e BA |
1 | import ChessRules from "/base_rules.js"; |
2 | import AbstractAntikingRules from "/variants/AbstractAntiking.js"; | |
3 | ||
4 | export class Antiking1Rules extends AbstractAntikingRules { | |
5 | ||
6 | static get Options() { | |
7 | return { | |
8 | styles: [ | |
9 | "atomic", | |
10 | "balance", | |
11 | "cannibal", | |
12 | "capture", | |
13 | "crazyhouse", | |
14 | "doublemove", | |
15 | "madrasi", | |
16 | "progressive", | |
17 | "recycle", | |
18 | "rifle", | |
19 | "teleport", | |
20 | "zen" | |
21 | ] | |
22 | }; | |
23 | } | |
24 | ||
25 | get hasCastle() { | |
26 | return false; | |
27 | } | |
28 | ||
29 | pieces(color, x, y) { | |
30 | const pawnShift = (color == "w" ? -1 : 1); | |
31 | let res = super.pieces(color, x, y); | |
32 | res['p'].moves = [ | |
33 | { | |
34 | steps: [[pawnShift, 1], [pawnShift, -1]], | |
35 | range: 1 | |
36 | } | |
37 | ]; | |
38 | res['p'].attack = [ | |
39 | { | |
40 | steps: [[pawnShift, 0]], | |
41 | range: 1 | |
42 | } | |
43 | ]; | |
44 | return res; | |
45 | } | |
46 | ||
47 | genRandInitFen() { | |
48 | // Always deterministic setup | |
49 | return ( | |
50 | '2prbkqA/2p1nnbr/2pppppp/8/8/PPPPPP2/RBNN1P2/aQKBRP2 w 0 ' + | |
51 | '{"flags":"KAka"}' | |
52 | ); | |
53 | } | |
54 | ||
55 | // (Anti)King flags at 1 (true) if they can knight-jump | |
56 | setFlags(fenflags) { | |
57 | this.kingFlags = { w: {}, b: {} }; | |
58 | for (let i=0; i<fenFlags.length; i++) { | |
59 | const white = fenFlags.charCodeAt(i) <= 90; | |
60 | const curChar = fenFlags.charCodeAt(i).toLowerCase(); | |
61 | this.kingFlags[white ? 'w' : 'b'][curChar] = true; | |
62 | } | |
63 | } | |
64 | ||
65 | getFlagsFen() { | |
66 | return ( | |
67 | Array.prototype.concat.apply( | |
68 | ['w', 'b'].map(c => Object.keys(this.kingFlags[c])) | |
69 | ).join("") | |
70 | ); | |
71 | } | |
72 | ||
73 | getPotentialMovesFrom([x, y]) { | |
74 | const color = this.turn; | |
75 | let moves = super.getPotentialMovesFrom([x, y]); | |
76 | if (this.kingFlags[color][piece]) { | |
77 | // Allow knight jump (king or antiking) | |
78 | const knightMoves = super.getPotentialMovesOf('n', [x, y]); | |
79 | // Remove captures (TODO: could be done more efficiently...) | |
80 | moves = moves.concat(knightJumps.filter(m => m.vanish.length == 1)); | |
81 | } | |
82 | return moves; | |
83 | } | |
84 | ||
85 | prePlay(move) { | |
86 | super.prePlay(move); | |
87 | // Update king+antiking flags | |
88 | const piece = move.vanish[0].p; | |
89 | if (this.isKing(0, 0, piece)) | |
90 | delete this.kingFlags[move.vanish[0].c][piece]; | |
91 | } | |
92 | ||
93 | }; |