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       input: [
   9         {
  10           label: "Rex Incl.",
  11           variable: "rexincl",
  12           type: "checkbox",
  13           defaut: false
  14         }
  15       ].concat(C.Options.input),
  16       styles: C.Options.styles.filter(s => s != "madrasi")
  17     };
  18   }
  19
  20   constructor(o) {
  21     o.options["madrasi"] = true;
  22     super(o);
  23   }
  24
  25   underCheck([x, y], color) {
  26     if (this.options["rexincl"]) {
  27       // If Rex Inclusive, kings do not check each other:
  28       // we just replace it very temporarily.
  29       const [ox, oy] = this.searchKingPos(color);
  30       const saveOppKing = this.board[ox][oy];
  31       this.board[ox][oy] = C.GetOppCol(color) + "q"; //arbitrary
  32       const res = super.underCheck([x, y], color);
  33       this.board[ox][oy] = saveOppKing;
  34       return res;
  35     }
  36     return super.underCheck([x, y], color);
  37   }
  38
  39 };