client/src/variants/Antimatter.js

   1 import { ChessRules } from "@/base_rules";
   2
   3 export class AntimatterRules extends ChessRules {
   4
   5   getPotentialMovesFrom([x, y]) {
   6     let moves = super.getPotentialMovesFrom([x, y]);
   7     // Handle "matter collisions"
   8     moves.forEach(m => {
   9       if (
  10         m.vanish.length > 1 &&
  11         m.appear.length <= 1 &&
  12         m.vanish[0].p == m.vanish[1].p
  13       ) {
  14         m.appear.pop();
  15       }
  16     });
  17     return moves;
  18   }
  19
  20 };