client/src/variants/Brotherhood.js

   1 import { ChessRules } from "@/base_rules";
   2
   3 export class BrotherhoodRules extends ChessRules {
   4
   5   getPotentialMovesFrom([x, y]) {
   6     return (
   7       super.getPotentialMovesFrom([x, y]).filter(m => {
   8         // Forbid capturing same piece's type:
   9         return (
  10           m.vanish.length == 1 ||
  11           [V.PAWN, V.KING].includes(m.vanish[0].p) ||
  12           m.vanish[1].p != m.vanish[0].p
  13         );
  14       })
  15     );
  16   }
  17
  18   getCurrentScore() {
  19     if (this.atLeastOneMove()) return "*";
  20     // Game over
  21     return (this.turn == "w" ? "0-1" : "1-0");
  22   }
  23
  24 };