client/src/variants/Gridolina.js

   1 import { ChessRules } from "@/base_rules";
   2 import { BerolinaRules } from "@/variants/Berolina";
   3
   4 export class GridolinaRules extends BerolinaRules {
   5   static get Lines() {
   6     return [
   7       [[2, 0], [2, 8]],
   8       [[4, 0], [4, 8]],
   9       [[6, 0], [6, 8]],
  10       [[0, 2], [8, 2]],
  11       [[0, 4], [8, 4]],
  12       [[0, 6], [8, 6]]
  13     ];
  14   }
  15
  16   static OnDifferentGrids([x1, y1], [x2, y2]) {
  17     return (
  18         Math.abs(Math.floor(x1 / 2) - Math.floor(x2 / 2)) >= 1 ||
  19         Math.abs(Math.floor(y1 / 2) - Math.floor(y2 / 2)) >= 1
  20     );
  21   }
  22
  23   canTake([x1, y1], [x2, y2]) {
  24     return (
  25       V.OnDifferentGrids([x1, y1], [x2, y2]) &&
  26       super.canTake([x1, y1], [x2, y2])
  27     );
  28   }
  29
  30   getPotentialMovesFrom([x, y]) {
  31     return (
  32       super.getPotentialMovesFrom([x, y]).filter(m => {
  33         return V.OnDifferentGrids([x, y], [m.end.x, m.end.y]);
  34       })
  35     );
  36   }
  37 };