import ChessRules from "/base_rules.js";
-import { ArrayFun } from "/utils/array.js";
-import { Random } from "/utils/alea.js";
+import {ArrayFun} from "/utils/array.js";
+import {Random} from "/utils/alea.js";
+import {FenUtil} from "/utils/setupPieces.js";
export default class GiveawayRules extends ChessRules {
return res;
}
- genRandInitFen(seed) {
- if (this.options["mode"] == "losers")
- return super.genRandInitFen(seed);
-
- if (this.options["randomness"] == 0) {
- return (
- 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w 0 {"enpassant":"-"}'
- );
+ genRandInitBaseFen() {
+ let setupOpts = {diffCol: ['b']};
+ if (this.options["mode"] == "losers") {
+ setupOpts["between"] = ['k', 'r'];
+ setupOpts["flags"] = ['r'];
}
-
- Random.setSeed(seed);
- let pieces = { w: new Array(8), b: new Array(8) };
- for (let c of ["w", "b"]) {
- if (c == 'b' && this.options["randomness"] == 1) {
- pieces['b'] = pieces['w'];
- break;
- }
-
- // Get random squares for every piece, totally freely
- let positions = Random.shuffle(ArrayFun.range(8));
- const composition = ['b', 'b', 'r', 'r', 'n', 'n', 'k', 'q'];
- const rem2 = positions[0] % 2;
- if (rem2 == positions[1] % 2) {
- // Fix bishops (on different colors)
- for (let i=2; i<8; i++) {
- if (positions[i] % 2 != rem2) {
- [positions[1], positions[i]] = [positions[i], positions[1]];
- break;
- }
- }
- }
- for (let i = 0; i < 8; i++)
- pieces[c][positions[i]] = composition[i];
- }
- return (
- pieces["b"].join("") +
- "/pppppppp/8/8/8/8/PPPPPPPP/" +
- pieces["w"].join("").toUpperCase() +
- // En-passant allowed, but no flags
- ' w 0 {"enpassant":"-"}'
- );
+ const s = FenUtil.setupPieces(
+ ['r', 'n', 'b', 'q', 'k', 'b', 'n', 'r'], setupOpts);
+ return {
+ fen: s.b.join("") + "/pppppppp/8/8/8/8/PPPPPPPP/" +
+ s.w.join("").toUpperCase(),
+ o: {flags: s.flags}
+ };
}
constructor(o) {
super(o);
}
- underCheck([x, y], oppCol) {
+ underCheck(square_s, oppCol) {
if (this.options["mode"] == "suicide")
return false;
- return super.underCheck([x, y], oppCol);
+ return super.underCheck(square_s, oppCol);
}
getCurrentScore() {
- if (this.atLeastOneMove()) return "*";
+ if (this.atLeastOneMove(this.turn))
+ return "*";
// No valid move: the side who cannot move wins
return (this.turn == "w" ? "1-0" : "0-1");
}