Commit | Line | Data |
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a548cb4e | 1 | import ChessRules from "/base_rules.js"; |
f3e90e30 | 2 | import AbstractAntikingRules from "/variants/_Antiking/class.js"; |
a548cb4e | 3 | |
f3e90e30 | 4 | export default class Antiking1Rules extends AbstractAntikingRules { |
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5 | |
6 | get hasCastle() { | |
7 | return false; | |
8 | } | |
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9 | get hasEnpassant() { |
10 | return false; | |
11 | } | |
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12 | |
13 | pieces(color, x, y) { | |
14 | const pawnShift = (color == "w" ? -1 : 1); | |
15 | let res = super.pieces(color, x, y); | |
16 | res['p'].moves = [ | |
17 | { | |
18 | steps: [[pawnShift, 1], [pawnShift, -1]], | |
19 | range: 1 | |
20 | } | |
21 | ]; | |
22 | res['p'].attack = [ | |
23 | { | |
24 | steps: [[pawnShift, 0]], | |
25 | range: 1 | |
26 | } | |
27 | ]; | |
28 | return res; | |
29 | } | |
30 | ||
f31de5e4 | 31 | genRandInitBaseFen() { |
a548cb4e | 32 | // Always deterministic setup |
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33 | return { |
34 | fen: "2prbkqA/2p1nnbr/2pppppp/8/8/PPPPPP2/RBNN1P2/aQKBRP2 w 0", | |
35 | o: {"flags": "KAka"} | |
36 | }; | |
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37 | } |
38 | ||
39 | // (Anti)King flags at 1 (true) if they can knight-jump | |
f31de5e4 | 40 | setFlags(fenflags) { |
a548cb4e | 41 | this.kingFlags = { w: {}, b: {} }; |
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42 | for (let i=0; i<fenflags.length; i++) { |
43 | const white = fenflags.charCodeAt(i) <= 90; | |
44 | const curChar = fenflags.charAt(i).toLowerCase(); | |
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45 | this.kingFlags[white ? 'w' : 'b'][curChar] = true; |
46 | } | |
47 | } | |
48 | ||
49 | getFlagsFen() { | |
50 | return ( | |
51 | Array.prototype.concat.apply( | |
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52 | ['w', 'b'].map(c => { |
53 | const res = Object.keys(this.kingFlags[c]).join(""); | |
54 | return (c == 'w' ? res.toUpperCase() : res); | |
55 | }) | |
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56 | ).join("") |
57 | ); | |
58 | } | |
59 | ||
60 | getPotentialMovesFrom([x, y]) { | |
61 | const color = this.turn; | |
62 | let moves = super.getPotentialMovesFrom([x, y]); | |
f3e90e30 | 63 | if (this.kingFlags[color][this.getPiece(x, y)]) { |
a548cb4e BA |
64 | // Allow knight jump (king or antiking) |
65 | const knightMoves = super.getPotentialMovesOf('n', [x, y]); | |
66 | // Remove captures (TODO: could be done more efficiently...) | |
f3e90e30 | 67 | moves = moves.concat(knightMoves.filter(m => m.vanish.length == 1)); |
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68 | } |
69 | return moves; | |
70 | } | |
71 | ||
72 | prePlay(move) { | |
73 | super.prePlay(move); | |
74 | // Update king+antiking flags | |
75 | const piece = move.vanish[0].p; | |
76 | if (this.isKing(0, 0, piece)) | |
77 | delete this.kingFlags[move.vanish[0].c][piece]; | |
78 | } | |
79 | ||
80 | }; |