client/src/variants/Titan.js

   1 import { ChessRules } from "@/base_rules";
   2
   3 export class TitanRules extends ChessRules {
   4   // Idea: yellow = bishop, orange = knight (for white)
   5   // and, red = bishop + purple = knight (black side)
   6   // (avoid using a bigger board, or complicated drawings)
   7
   8   // TODO: decode if piece + bishop or knight
   9   getPiece() {}
  10
  11   // Code: a/c = bishop + knight/bishop j/l for king,
  12   // m/o for knight, s/t for queen, u/v for rook
  13   static get AUGMENTED_PIECES() {
  14     return {
  15       // ...
  16     };
  17   }
  18   // or:
  19   getExtraPiece(symbol) {
  20     // TODO: switch ... case ... return b or n
  21   }
  22
  23   // TODO: hook after any move from 1st rank,
  24   // if piece not in usual list, bishop or knight appears.
  25   getPotentialMovesFrom(sq) {
  26     let moves = super.getPotentialMovesFrom(sq);
  27     const color = this.turn;
  28     if (
  29       !ChessRules.PIECES.includes(this.board[sq[0]][sq[1]][1]) &&
  30       ((color == 'w' && sq[0] == 7) || (color == "b" && sq[0] == 0))
  31     ) {
  32       // (or lookup table)
  33       const newPiece = this.getExtraPiece(this.board[sq[0]][sq[1]][1])
  34       moves.forEach(m => {
  35         m.appear.push(
  36           new PiPo({
  37             p: newPiece,
  38             c: color,
  39             x: sq[0],
  40             y: sq[1]
  41           })
  42         );
  43       });
  44     }
  45     return moves;
  46   }
  47
  48   // TODO: special case of move 1 = choose squares, knight first, then bishop
  49   // (just click ?)
  50 };