variants/Atomic/class.js

   1 import ChessRules from "/base_rules.js";
   2 import PiPo from "/utils/PiPo.js";
   3 import Move from "/utils/Move.js";
   4
   5 export default class AtomicRules extends ChessRules {
   6
   7   static get Options() {
   8     return {
   9       select: C.Options.select,
  10       check: [
  11         {
  12           label: "Balanced",
  13           defaut: false,
  14           variable: "rempawn"
  15         },
  16         {
  17           label: "Falling pawn",
  18           defaut: false,
  19           variable: "pawnfall"
  20         }
  21       ],
  22       styles: C.Options.styles.filter(s => s != "atomic")
  23     };
  24   }
  25
  26   constructor(o) {
  27     super(o);
  28     this.options.atomic = true;
  29   }
  30
  31   genRandInitFen(seed) {
  32     return super.genRandInitFen(seed).slice(0, -1) + ',"rempawn":' + (this.options.rempawn ? "1" : "0") + "}";
  33   }
  34
  35   // TODO: capture king option doesn't make sense
  36
  37   setOtherVariables(fenParsed) {
  38     super.setOtherVariables(fenParsed);
  39     this.options["rempawn"] = (fenParsed.rempawn == 1);
  40   }
  41
  42   getFen() {
  43     return super.getFen().slice(0, -1) + ',"rempawn":' + (this.options["rempawn"] ? "1" : "0") + "}";
  44   }
  45
  46   canIplay(x, y) {
  47     if (this.options["rempawn"] && this.movesCount == 0)
  48       return (this.turn == side && this.getPiece(x, y) == "p");
  49     return super.canIplay(x, y);
  50   }
  51
  52   getPotentialMovesFrom([x, y], color) {
  53     if (this.options["rempawn"] && this.movesCount == 0) {
  54       if ([1, 6].includes(x)) {
  55         const c = this.getColor(x, y);
  56         return [
  57           new Move({
  58             appear: [],
  59             vanish: [
  60               new PiPo({
  61                 x: x,
  62                 y: y,
  63                 p: "p",
  64                 c: c
  65               })
  66             ],
  67             start: { x: x, y: y },
  68             end: { x: x, y: y }
  69           })
  70         ];
  71       }
  72       return [];
  73     }
  74     return super.getPotentialMovesFrom([x, y], color);
  75   }
  76
  77   doClick(square) {
  78     if (!this.options["rempawn"] || this.movesCount >= 1)
  79       return super.doClick(square);
  80     const [x, y] = [square[0], square[1]];
  81     const moves = this.getPotentialMovesFrom([x, y]);
  82     return (moves.length >= 1 ? moves[0] : null);
  83   }
  84
  85 };