client/src/variants/Pawnmassacre.js

   1 import { ChessRules } from "@/base_rules";
   2
   3 export class PawnmassacreRules extends ChessRules {
   4
   5   static get HasFlags() {
   6     return false;
   7   }
   8
   9   get showFirstTurn() {
  10     return true;
  11   }
  12
  13   static GenRandInitFen(randomness) {
  14     const bFen =
  15       ChessRules.GenRandInitFen(randomness)
  16       // Remove castle flags
  17       .slice(0, -6).concat("-");
  18     const splitIdx = bFen.indexOf(' ');
  19     return (
  20       bFen.substr(0, splitIdx)
  21       .replace("PPPPPPPP", "pppppppp")
  22       // Next replacement is OK because only acts on first occurrence
  23       .replace("pppppppp", "PPPPPPPP")
  24       .split("").reverse().join("")
  25       .concat(bFen.substr(splitIdx))
  26     );
  27   }
  28
  29 };