| 1 | import ChessRules from "/base_rules.js"; |
| 2 | |
| 3 | export default class AbstractAntikingRules extends ChessRules { |
| 4 | |
| 5 | static get Aliases() { |
| 6 | return Object.assign({'A': AbstractAntikingRules}, ChessRules.Aliases); |
| 7 | } |
| 8 | |
| 9 | static get Options() { |
| 10 | return { |
| 11 | styles: [ |
| 12 | "atomic", |
| 13 | "balance", |
| 14 | "cannibal", |
| 15 | "capture", |
| 16 | "crazyhouse", |
| 17 | "doublemove", |
| 18 | "madrasi", |
| 19 | "progressive", |
| 20 | "recycle", |
| 21 | "rifle", |
| 22 | "teleport", |
| 23 | "zen" |
| 24 | ] |
| 25 | }; |
| 26 | } |
| 27 | |
| 28 | pieces(color, x, y) { |
| 29 | return Object.assign( |
| 30 | { |
| 31 | 'a': { |
| 32 | // Move like a king, no attacks |
| 33 | "class": "antiking", |
| 34 | moves: super.pieces(color, x, y)['k'].moves, |
| 35 | attack: [] |
| 36 | } |
| 37 | }, |
| 38 | super.pieces(color, x, y) |
| 39 | ); |
| 40 | } |
| 41 | |
| 42 | isKing(x, y, p) { |
| 43 | if (!p) |
| 44 | p = this.getPiece(x, y); |
| 45 | return ['k', 'a'].includes(p); |
| 46 | } |
| 47 | |
| 48 | // NOTE: canTake includes (wrong) captures of antiking, |
| 49 | // to not go to low-level using findDestSquares() |
| 50 | canTake([x1, y1], [x2, y2]) { |
| 51 | const piece1 = this.getPiece(x1, y1); |
| 52 | const color1 = this.getColor(x1, y1); |
| 53 | const color2 = this.getColor(x2, y2); |
| 54 | return ( |
| 55 | (piece1 != 'a' && color1 != color2) || |
| 56 | (piece1 == 'a' && color1 == color2) |
| 57 | ); |
| 58 | } |
| 59 | |
| 60 | // Remove captures of antiking (see above) |
| 61 | getPotentialMovesFrom([x, y]) { |
| 62 | return super.getPotentialMovesFrom([x, y]).filter(m => |
| 63 | m.vanish.length == 1 || m.vanish[1].p != 'a'); |
| 64 | } |
| 65 | |
| 66 | underCheck(squares, color) { |
| 67 | let res = false; |
| 68 | squares.forEach(sq => { |
| 69 | switch (this.getPiece(sq[0], sq[1])) { |
| 70 | case 'k': |
| 71 | res ||= super.underAttack(sq, color); |
| 72 | break; |
| 73 | case 'a': |
| 74 | res ||= !super.underAttack(sq, color); |
| 75 | break; |
| 76 | } |
| 77 | }); |
| 78 | return res; |
| 79 | } |
| 80 | |
| 81 | }; |