variants/AbstractAntiking.js

   1 import ChessRules from "/base_rules.js";
   2
   3 export class AbstractAntikingRules extends ChessRules {
   4
   5   static get Options() {
   6     return {
   7       styles: [
   8         "atomic",
   9         "balance",
  10         "cannibal",
  11         "capture",
  12         "crazyhouse",
  13         "doublemove",
  14         "madrasi",
  15         "progressive",
  16         "recycle",
  17         "rifle",
  18         "teleport",
  19         "zen"
  20       ]
  21     };
  22   }
  23
  24   pieces(color, x, y) {
  25     "a": {
  26       // Move like a king, no attacks
  27       "class": "antiking",
  28       moves: super.pieces(color, x, y)['k'].moves,
  29       attack: []
  30     }
  31   }
  32
  33   isKing(x, y, p) {
  34     if (!p)
  35       p = this.getPiece(x, y);
  36     return ['k', 'a'].includes(p);
  37   }
  38
  39   canTake([x1, y1], [x2, y2]) {
  40     const piece1 = this.getPiece(x1, y1);
  41     const piece2 = this.getPiece(x2, y2);
  42     const color1 = this.getColor(x1, y1);
  43     const color2 = this.getColor(x2, y2);
  44     return (
  45       piece2 != 'a' &&
  46       (
  47         (piece1 != 'a' && color1 != color2) ||
  48         (piece1 == 'a' && color1 == color2)
  49       )
  50     );
  51   }
  52
  53   underCheck(squares, color) {
  54     const oppCol = C.GetOppCol(color);
  55     let res = false;
  56     squares.forEach(sq => {
  57       switch (this.getPiece(sq[0], sq[1])) {
  58         case 'k':
  59           res ||= super.underAttack(sq, oppCol);
  60           break;
  61         case 'a':
  62           res ||= !super.underAttack(sq, oppCol);
  63           break;
  64       }
  65     });
  66     return res;
  67   }
  68
  69 };