| 1 | import { ChessRules, Move, PiPo } from "@/base_rules"; |
| 2 | import { ArrayFun } from "@/utils/array"; |
| 3 | import { randInt, sample } from "@/utils/alea"; |
| 4 | |
| 5 | export class CoregalRules extends ChessRules { |
| 6 | |
| 7 | //TODO: CSS royal queen symbol |
| 8 | |
| 9 | genRandInitBaseFen() { |
| 10 | const s = FenUtil.setupPieces( |
| 11 | ['r', 'n', 'b', 'l', 'k', 'b', 'n', 'r'], |
| 12 | { |
| 13 | randomness: this.options["randomness"], |
| 14 | between: [{p1: 'k', p2: 'r'}, {p1: 'l', p2: 'r'}], |
| 15 | diffCol: ['b'], |
| 16 | flags: ['r', 'k', 'l'] //TODO: add 'k' to all 'flags' calls ??! |
| 17 | } |
| 18 | ); |
| 19 | return { |
| 20 | fen: s.b.join("") + "/pppppppp/8/8/8/8/PPPPPPPP/" + |
| 21 | s.w.join("").toUpperCase(), |
| 22 | o: {flags: s.flags} |
| 23 | }; |
| 24 | } |
| 25 | |
| 26 | pieces() { |
| 27 | let res = super.pieces(); |
| 28 | res['l'] = JSON.parse(JSON.stringify(res['q'])); |
| 29 | res['l']["class"] = "royal_queen"; |
| 30 | return res; |
| 31 | } |
| 32 | |
| 33 | setFlags(fenflags) { |
| 34 | // white pieces positions, then black pieces positions |
| 35 | this.castleFlags = { w: [...Array(4)], b: [...Array(4)] }; |
| 36 | for (let i = 0; i < 8; i++) { |
| 37 | this.castleFlags[i < 4 ? "w" : "b"][i % 4] = |
| 38 | parseInt(fenflags.charAt(i), 10); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | isKing(x, y, p) { |
| 43 | if (!p) |
| 44 | p = this.getPiece(x, y); |
| 45 | ['k', 'l'].includes(p); //no cannibal mode |
| 46 | } |
| 47 | |
| 48 | getCastleMoves([x, y]) { |
| 49 | // Relative position of the selected piece: left or right ? |
| 50 | // If left: small castle left, large castle right. |
| 51 | // If right: usual situation. |
| 52 | const c = this.getColor(x, y); |
| 53 | const relPos = (this.castleFlags[c][1] == y ? "left" : "right"); |
| 54 | |
| 55 | const finalSquares = [ |
| 56 | relPos == "left" ? [1, 2] : [2, 3], |
| 57 | relPos == "right" ? [6, 5] : [5, 4] |
| 58 | ]; |
| 59 | const saveFlags = JSON.stringify(this.castleFlags[c]); |
| 60 | // Alter flags to follow base_rules semantic |
| 61 | this.castleFlags[c] = [0, 3].map(i => this.castleFlags[c][i]); |
| 62 | const moves = super.getCastleMoves([x, y], finalSquares); |
| 63 | this.castleFlags[c] = JSON.parse(saveFlags); |
| 64 | return moves; |
| 65 | } |
| 66 | |
| 67 | }; |