| 1 | import { ChessRules } from "@/base_rules"; |
| 2 | |
| 3 | // Ideas with 2 kings: |
| 4 | // Stage 1 {w, b} : 2 kings on board, value 5. |
| 5 | // Stage 2: only one, get mated and all that, value 1000 |
| 6 | // ...But the middle king will get captured quickly... |
| 7 | |
| 8 | export class DoublearmyRules extends ChessRules { |
| 9 | static get COMMONER() { |
| 10 | return "c"; |
| 11 | } |
| 12 | |
| 13 | static get PIECES() { |
| 14 | return ChessRules.PIECES.concat([V.COMMONER]); |
| 15 | } |
| 16 | |
| 17 | getPpath(b) { |
| 18 | return (b[1] == V.COMMONER ? "Doublearmy/" : "") + b; |
| 19 | } |
| 20 | |
| 21 | static GenRandInitFen(randomness) { |
| 22 | const fen = ChessRules.GenRandInitFen(randomness); |
| 23 | const rows = fen.split(" ")[0].split("/"); |
| 24 | return ( |
| 25 | rows[0] + "/" + |
| 26 | rows[1] + "/" + |
| 27 | rows[0].replace('k', 'c') + "/" + |
| 28 | rows[1] + "/" + |
| 29 | rows[6] + "/" + |
| 30 | rows[7].replace('K', 'C') + "/" + |
| 31 | rows[6] + "/" + |
| 32 | rows[7] + fen.slice(-11) |
| 33 | ); |
| 34 | } |
| 35 | |
| 36 | getPotentialMovesFrom([x, y]) { |
| 37 | switch (this.getPiece(x, y)) { |
| 38 | case V.COMMONER: |
| 39 | return this.getPotentialCommonerMoves([x, y]); |
| 40 | default: |
| 41 | return super.getPotentialMovesFrom([x, y]); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | getPotentialCommonerMoves(sq) { |
| 46 | return this.getSlideNJumpMoves( |
| 47 | sq, |
| 48 | V.steps[V.ROOK].concat(V.steps[V.BISHOP]), |
| 49 | "oneStep" |
| 50 | ); |
| 51 | } |
| 52 | |
| 53 | isAttacked(sq, color) { |
| 54 | return ( |
| 55 | super.isAttacked(sq, color) || |
| 56 | this.isAttackedByCommoner(sq, color) |
| 57 | ); |
| 58 | } |
| 59 | |
| 60 | isAttackedByCommoner(sq, color) { |
| 61 | return this.isAttackedBySlideNJump( |
| 62 | sq, |
| 63 | color, |
| 64 | V.COMMONER, |
| 65 | V.steps[V.ROOK].concat(V.steps[V.BISHOP]), |
| 66 | "oneStep" |
| 67 | ); |
| 68 | } |
| 69 | |
| 70 | static get VALUES() { |
| 71 | return Object.assign( |
| 72 | {}, |
| 73 | ChessRules.VALUES, |
| 74 | { c: 5 } |
| 75 | ); |
| 76 | } |
| 77 | |
| 78 | static get SEARCH_DEPTH() { |
| 79 | return 2; |
| 80 | } |
| 81 | }; |