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       input: [
   9         {
  10           label: "Logical",
  11           variable: "logical",
  12           type: "checkbox",
  13           defaut: false
  14         }
  15       ].concat(C.Options.input),
  16       styles: C.Options.styles.filter(s => s != "progressive")
  17     };
  18   }
  19
  20   constructor(o) {
  21     o.options["progressive"] = true;
  22     super(o);
  23   }
  24
  25   get hasCastle() {
  26     return !this.options["logical"];
  27   }
  28
  29   pieces(color, x, y) {
  30     let res = super.pieces(color, x, y);
  31     if (this.options["logical"]) {
  32       const pawnShift = (color == "w" ? -1 : 1);
  33       res["p"].moves[0] = {
  34         steps: [[pawnShift, 0]],
  35         range: 1 //always
  36       };
  37     }
  38     return res;
  39   }
  40
  41 };