variants/Madrasi/class.js

   1 import ChessRules from "/base_rules.js";
   2
   3 export default class MadrasiRules extends ChessRules {
   4
   5   static get Options() {
   6     return {
   7       select: C.Options.select,
   8       check: [
   9         {
  10           label: "Rex Incl.",
  11           defaut: false,
  12           variable: "rexincl"
  13         }
  14       ].concat(C.Options.check),
  15       styles: C.Options.styles.filter(s => s != "madrasi")
  16     };
  17   }
  18
  19   constructor(o) {
  20     o.options["madrasi"] = true;
  21     super(o);
  22   }
  23
  24   underCheck([x, y], color) {
  25     if (this.options["rexincl"]) {
  26       // If Rex Inclusive, kings do not check each other:
  27       // we just replace it very temporarily.
  28       const [ox, oy] = this.searchKingPos(color);
  29       const saveOppKing = this.board[ox][oy];
  30       this.board[ox][oy] = C.GetOppCol(color) + "q"; //arbitrary
  31       const res = super.underCheck([x, y], color);
  32       this.board[ox][oy] = saveOppKing;
  33       return res;
  34     }
  35     return super.underCheck([x, y], color);
  36   }
  37
  38 };