| 1 | import ChessRules from "/base_rules.js"; |
| 2 | |
| 3 | export class ApocalypseRules extends ChessRules { |
| 4 | |
| 5 | static get Options() { |
| 6 | return {}; |
| 7 | } |
| 8 | |
| 9 | get pawnPromotions() { |
| 10 | return ['n', 'p']; |
| 11 | } |
| 12 | |
| 13 | get size() { |
| 14 | return {x: 5, y: 5}; |
| 15 | } |
| 16 | |
| 17 | genRandInitBaseFen() { |
| 18 | return { |
| 19 | fen: "npppn/p3p/5/P3P/NPPPN w 0", |
| 20 | o: {"flags":"00"} |
| 21 | }; |
| 22 | } |
| 23 | |
| 24 | getPartFen(o) { |
| 25 | let parts = super.getPartFen(o); |
| 26 | parts["whiteMove"] = this.whiteMove || "-"; |
| 27 | return parts; |
| 28 | } |
| 29 | |
| 30 | getFlagsFen() { |
| 31 | return ( |
| 32 | this.penaltyFlags['w'].toString() + this.penaltyFlags['b'].toString() |
| 33 | ); |
| 34 | } |
| 35 | |
| 36 | setOtherVariables(fen) { |
| 37 | const parsedFen = V.ParseFen(fen); |
| 38 | this.setFlags(parsedFen.flags); |
| 39 | // Also init whiteMove |
| 40 | this.whiteMove = |
| 41 | parsedFen.whiteMove != "-" |
| 42 | ? JSON.parse(parsedFen.whiteMove) |
| 43 | : null; |
| 44 | } |
| 45 | |
| 46 | setFlags(fenflags) { |
| 47 | this.penaltyFlags = { |
| 48 | 'w': parseInt(fenflags[0], 10), |
| 49 | 'b': parseInt(fenflags[1], 10) |
| 50 | }; |
| 51 | } |
| 52 | |
| 53 | // TODO: could be a stack of 2 (pawn promote + relocation) |
| 54 | getWhitemoveFen() { |
| 55 | if (!this.whiteMove) return "-"; |
| 56 | return JSON.stringify({ |
| 57 | start: this.whiteMove.start, |
| 58 | end: this.whiteMove.end, |
| 59 | appear: this.whiteMove.appear, |
| 60 | vanish: this.whiteMove.vanish |
| 61 | }); |
| 62 | } |
| 63 | |
| 64 | // allow pawns to move diagonally and capture vertically --> only purpose illegal |
| 65 | // allow capture self --> same purpose |
| 66 | // ---> MARK such moves : move.illegal = true |
| 67 | |
| 68 | // simpler: allow all moves, including "capturing nothing" |
| 69 | // flag every pawn capture as "illegal" (potentially) |
| 70 | |
| 71 | pieces(color, x, y) { |
| 72 | const pawnShift = (color == "w" ? -1 : 1); |
| 73 | return { |
| 74 | 'p': { |
| 75 | "class": "pawn", |
| 76 | moves: [ |
| 77 | { |
| 78 | steps: [[pawnShift, 0], [pawnShift, -1], [pawnShift, 1]], |
| 79 | range: 1 |
| 80 | } |
| 81 | ], |
| 82 | }, |
| 83 | 'n': super.pieces(color, x, y)['n'] |
| 84 | }; |
| 85 | } |
| 86 | |
| 87 | canTake() { |
| 88 | return true; |
| 89 | } |
| 90 | |
| 91 | getPotentialMovesFrom([x, y]) { |
| 92 | let moves = []; |
| 93 | if (this.subTurn == 2) { |
| 94 | const start = this.moveStack[0].end; |
| 95 | if (x == start.x && y == start.y) { |
| 96 | // Move the pawn to any empty square not on last rank (== x) |
| 97 | for (let i=0; i<this.size.x; i++) { |
| 98 | if (i == x) |
| 99 | continue; |
| 100 | for (let j=0; j<this.size.y; j++) { |
| 101 | if (this.board[i][j] == "") |
| 102 | moves.push(this.getBasicMove([x, y], [i, j])); |
| 103 | } |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | else { |
| 108 | moves = super.getPotentialMovesFrom([x, y]) |
| 109 | // Flag a priori illegal moves |
| 110 | moves.forEach(m => { |
| 111 | if ( |
| 112 | // Self-capture test: |
| 113 | (m.vanish.length == 2 && m.vanish[1].c == m.vanish[0].c) || |
| 114 | // Pawn going diagonaly to empty square, or vertically to occupied |
| 115 | ( |
| 116 | m.vanish[0].p == 'p' && |
| 117 | ( |
| 118 | (m.end.y == m.start.y && m.vanish.length == 2) || |
| 119 | (m.end.y != m.start.y && m.vanish.length == 1) |
| 120 | ) |
| 121 | ) |
| 122 | ) { |
| 123 | m.illegal = true; |
| 124 | } |
| 125 | }); |
| 126 | } |
| 127 | return moves; |
| 128 | } |
| 129 | |
| 130 | filterValid(moves) { |
| 131 | // No checks: |
| 132 | return moves; |
| 133 | } |
| 134 | |
| 135 | // White and black (partial) moves were played: merge |
| 136 | // + animate both at the same time ! |
| 137 | resolveSynchroneMove(move) { |
| 138 | // TODO |
| 139 | } |
| 140 | |
| 141 | play(move) { |
| 142 | // Do not play on board (would reveal the move...) |
| 143 | this.turn = V.GetOppCol(this.turn); |
| 144 | this.movesCount++; |
| 145 | this.postPlay(move); |
| 146 | } |
| 147 | |
| 148 | postPlay(move) { |
| 149 | if (pawn promotion into pawn) { |
| 150 | this.curMove move; //TODO: animate both move at same time + effects AFTER ! |
| 151 | this.subTurn = 2 |
| 152 | } |
| 153 | else if (this.turn == 'b') |
| 154 | // NOTE: whiteMove is used read-only, so no need to copy |
| 155 | this.whiteMove = move; |
| 156 | } |
| 157 | else { |
| 158 | // A full turn just ended: |
| 159 | const smove = this.resolveSynchroneMove(move); |
| 160 | V.PlayOnBoard(this.board, smove); //----> ici : animate both ! |
| 161 | this.whiteMove = null; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | atLeastOneLegalMove(...) { |
| 166 | // TODO |
| 167 | } |
| 168 | |
| 169 | getCurrentScore() { |
| 170 | if (this.turn == 'b') |
| 171 | // Turn (white + black) not over yet. Could be stalemate if black cannot move (legally) |
| 172 | // TODO: check. If so, return "1/2". |
| 173 | return "*"; |
| 174 | // Count footmen: if a side has none, it loses |
| 175 | let fmCount = { 'w': 0, 'b': 0 }; |
| 176 | for (let i=0; i<5; i++) { |
| 177 | for (let j=0; j<5; j++) { |
| 178 | if (this.board[i][j] != V.EMPTY && this.getPiece(i, j) == V.PAWN) |
| 179 | fmCount[this.getColor(i, j)]++; |
| 180 | } |
| 181 | } |
| 182 | if (Object.values(fmCount).some(v => v == 0)) { |
| 183 | if (fmCount['w'] == 0 && fmCount['b'] == 0) |
| 184 | // Everyone died |
| 185 | return "1/2"; |
| 186 | if (fmCount['w'] == 0) return "0-1"; |
| 187 | return "1-0"; //fmCount['b'] == 0 |
| 188 | } |
| 189 | // Check penaltyFlags: if a side has 2 or more, it loses |
| 190 | if (Object.values(this.penaltyFlags).every(v => v == 2)) return "1/2"; |
| 191 | if (this.penaltyFlags['w'] == 2) return "0-1"; |
| 192 | if (this.penaltyFlags['b'] == 2) return "1-0"; |
| 193 | if (!this.atLeastOneLegalMove('w') || !this.atLeastOneLegalMove('b')) |
| 194 | // Stalemate (should be very rare) |
| 195 | return "1/2"; |
| 196 | return "*"; |
| 197 | } |
| 198 | |
| 199 | }; |