variants/Progressive/class.js

   1 import ChessRules from "/base_rules.js";
   2
   3 export default class ProgressiveRules extends ChessRules {
   4
   5   static get Options() {
   6     return {
   7       select: C.Options.select,
   8       check: [
   9         {
  10           label: "Logical",
  11           defaut: false,
  12           variable: "logical"
  13         }
  14       ].concat(C.Options.check),
  15       styles: C.Options.styles.filter(s => s != "progressive")
  16     };
  17   }
  18
  19   constructor(o) {
  20     o.options["progressive"] = true;
  21     super(o);
  22   }
  23
  24   get hasCastle() {
  25     return !this.options["logical"];
  26   }
  27
  28   pieces(color, x, y) {
  29     let res = super.pieces(color, x, y);
  30     if (this.options["logical"]) {
  31       const pawnShift = (color == "w" ? -1 : 1);
  32       res["p"].moves[0] = {
  33         steps: [[pawnShift, 0]],
  34         range: 1 //always
  35       };
  36     }
  37     return res;
  38   }
  39
  40 };