| 1 | import { ChessRules } from "@/base_rules"; |
| 2 | import { ArrayFun } from "@/utils/array"; |
| 3 | import { randInt } from "@/utils/alea"; |
| 4 | |
| 5 | export class KnightmateRules extends ChessRules { |
| 6 | static get COMMONER() { |
| 7 | return "c"; |
| 8 | } |
| 9 | |
| 10 | static get PIECES() { |
| 11 | return ChessRules.PIECES.concat([V.COMMONER]); |
| 12 | } |
| 13 | |
| 14 | getPpath(b) { |
| 15 | return ([V.KING, V.COMMONER].includes(b[1]) ? "Knightmate/" : "") + b; |
| 16 | } |
| 17 | |
| 18 | static GenRandInitFen(randomness) { |
| 19 | return ChessRules.GenRandInitFen(randomness) |
| 20 | .replace(/n/g, 'c').replace(/N/g, 'C'); |
| 21 | } |
| 22 | |
| 23 | getPotentialMovesFrom([x, y]) { |
| 24 | switch (this.getPiece(x, y)) { |
| 25 | case V.COMMONER: |
| 26 | return this.getPotentialCommonerMoves([x, y]); |
| 27 | default: |
| 28 | return super.getPotentialMovesFrom([x, y]); |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | getPotentialCommonerMoves(sq) { |
| 33 | return this.getSlideNJumpMoves( |
| 34 | sq, |
| 35 | V.steps[V.ROOK].concat(V.steps[V.BISHOP]), |
| 36 | "oneStep" |
| 37 | ); |
| 38 | } |
| 39 | |
| 40 | getPotentialKingMoves(sq) { |
| 41 | return super.getPotentialKnightMoves(sq).concat(super.getCastleMoves(sq)); |
| 42 | } |
| 43 | |
| 44 | isAttacked(sq, color) { |
| 45 | return ( |
| 46 | this.isAttackedByCommoner(sq, color) || |
| 47 | this.isAttackedByPawn(sq, color) || |
| 48 | this.isAttackedByRook(sq, color) || |
| 49 | this.isAttackedByBishop(sq, color) || |
| 50 | this.isAttackedByQueen(sq, color) || |
| 51 | this.isAttackedByKing(sq, color) |
| 52 | ); |
| 53 | } |
| 54 | |
| 55 | isAttackedByKing(sq, color) { |
| 56 | return this.isAttackedBySlideNJump( |
| 57 | sq, |
| 58 | color, |
| 59 | V.KING, |
| 60 | V.steps[V.KNIGHT], |
| 61 | "oneStep" |
| 62 | ); |
| 63 | } |
| 64 | |
| 65 | isAttackedByCommoner(sq, color) { |
| 66 | return this.isAttackedBySlideNJump( |
| 67 | sq, |
| 68 | color, |
| 69 | V.COMMONER, |
| 70 | V.steps[V.ROOK].concat(V.steps[V.BISHOP]), |
| 71 | "oneStep" |
| 72 | ); |
| 73 | } |
| 74 | |
| 75 | static get VALUES() { |
| 76 | return { |
| 77 | p: 1, |
| 78 | r: 5, |
| 79 | c: 5, //the commoner is valuable |
| 80 | b: 3, |
| 81 | q: 9, |
| 82 | k: 1000 |
| 83 | }; |
| 84 | } |
| 85 | }; |