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   static GenRandInitFen(randomness) {
  10     const bFen =
  11       ChessRules.GenRandInitFen(randomness)
  12       // Remove castle flags
  13       .slice(0, -6).concat("-");
  14     const splitIdx = bFen.indexOf(' ');
  15     return (
  16       bFen.substr(0, splitIdx)
  17       .replace("PPPPPPPP", "pppppppp")
  18       // Next replacement is OK because only acts on first occurrence
  19       .replace("pppppppp", "PPPPPPPP")
  20       .split("").reverse().join("")
  21       .concat(bFen.substr(splitIdx))
  22     );
  23   }
  24
  25 };