import { ChessRules } from "@/base_rules";
export const VariantRules = class CheckeredRules extends ChessRules {
- static getPpath(b) {
- return b[0] == "c" ? "Checkered/" + b : b;
- }
-
static board2fen(b) {
const checkered_codes = {
p: "s",
return ChessRules.PIECES.concat(["s", "t", "u", "c", "o"]);
}
+ getPpath(b) {
+ return b[0] == "c" ? "Checkered/" + b : b;
+ }
+
setOtherVariables(fen) {
super.setOtherVariables(fen);
// Local stack of non-capturing checkered moves:
}
}
if (m.vanish.length == 1) moves.push(m);
- //no capture
+ // No capture
else {
// A capture occured (m.vanish.length == 2)
m.appear[0].c = "c";
// Does m2 un-do m1 ? (to disallow undoing checkered moves)
oppositeMoves(m1, m2) {
return (
- !!m1 &&
+ m1 &&
m2.appear[0].c == "c" &&
m2.appear.length == 1 &&
m2.vanish.length == 1 &&
filterValid(moves) {
if (moves.length == 0) return [];
const color = this.turn;
+ const L = this.cmoves.length; //at least 1: init from FEN
return moves.filter(m => {
- const L = this.cmoves.length; //at least 1: init from FEN
if (this.oppositeMoves(this.cmoves[L - 1], m)) return false;
this.play(m);
const res = !this.underCheck(color);