import ChessRules from "/base_rules.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 {
}
genRandInitBaseFen() {
- if (this.options["mode"] == "losers")
- return super.genRandInitBaseFen();
-
- let fen = "";
- if (this.options["randomness"] == 0)
- fen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR";
- else {
- 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];
- }
- fen = (
- pieces["b"].join("") +
- "/pppppppp/8/8/8/8/PPPPPPPP/" +
- pieces["w"].join("").toUpperCase()
- );
+ let setupOpts = {
+ randomness: this.options["randomness"],
+ diffCol: ['b']
+ };
+ if (this.options["mode"] == "losers") {
+ setupOpts["between"] = ['k', 'r'];
+ setupOpts["flags"] = ['r'];
}
- return { fen: fen, o: {} };
+ 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(square, oppCol) {
+ underCheck(square_s, oppCol) {
if (this.options["mode"] == "suicide")
return false;
- return super.underCheck(square, oppCol);
+ return super.underCheck(square_s, oppCol);
}
getCurrentScore() {