import { ChessRules, PiPo, Move } from "@/base_rules";
+import { SuicideRules } from "@/variants/Suicide";
export class SuctionRules extends ChessRules {
+
+ static get PawnSpecs() {
+ return Object.assign(
+ {},
+ ChessRules.PawnSpecs,
+ // No promotions:
+ { promotions: [V.PAWN] }
+ );
+ }
+
static get HasFlags() {
return false;
}
}
static ParseFen(fen) {
- return Object.assign({}, ChessRules.ParseFen(fen), {
- cmove: fen.split(" ")[4]
- });
+ return Object.assign(
+ ChessRules.ParseFen(fen),
+ { cmove: fen.split(" ")[4] }
+ );
}
static IsGoodFen(fen) {
if (!ChessRules.IsGoodFen(fen)) return false;
const fenParts = fen.split(" ");
- if (fenParts.length != 6) return false;
- if (fenParts[5] != "-" && !fenParts[5].match(/^([a-h][1-8]){2}$/))
+ if (fenParts.length != 5) return false;
+ if (fenParts[4] != "-" && !fenParts[4].match(/^([a-h][1-8]){2}$/))
return false;
return true;
}
Math.abs(epSquare.y - y) == 1
) {
let enpassantMove = this.getBasicMove([x, y], [epSquare.x, epSquare.y]);
- const oppCol = V.GetOppCol(color);
+ const oppCol = V.GetOppCol(this.turn);
enpassantMove.vanish.push({
x: x,
y: epSquare.y,
// Does m2 un-do m1 ? (to disallow undoing captures)
oppositeMoves(m1, m2) {
return (
- m1 &&
+ !!m1 &&
m2.vanish.length == 2 &&
m1.start.x == m2.start.x &&
m1.end.x == m2.end.x &&
filterValid(moves) {
if (moves.length == 0) return [];
- const color = this.turn;
return moves.filter(m => {
const L = this.cmoves.length; //at least 1: init from FEN
return !this.oppositeMoves(this.cmoves[L - 1], m);
});
}
- static GenRandInitFen(randomness) {
+ static GenRandInitFen(options) {
// Add empty cmove:
- return ChessRules.GenRandInitFen(randomness).slice(0, -6) + "- -";
+ return SuicideRules.GenRandInitFen(options) + " -";
}
- getFen() {
+ getCmoveFen() {
const L = this.cmoves.length;
- const cmoveFen = !this.cmoves[L - 1]
- ? "-"
- : ChessRules.CoordsToSquare(this.cmoves[L - 1].start) +
- ChessRules.CoordsToSquare(this.cmoves[L - 1].end);
- return super.getFen() + " " + cmoveFen;
+ return (
+ !this.cmoves[L - 1]
+ ? "-"
+ : ChessRules.CoordsToSquare(this.cmoves[L - 1].start) +
+ ChessRules.CoordsToSquare(this.cmoves[L - 1].end)
+ );
+ }
+
+ getFen() {
+ return super.getFen() + " " + this.getCmoveFen();
+ }
+
+ getFenForRepeat() {
+ return super.getFenForRepeat() + "_" + this.getCmoveFen();
}
postPlay(move) {
super.postPlay(move);
- if (move.vanish.length == 2) {
- // Was opponent king swapped?
- if (move.vanish[1].p == V.KING)
- this.kingPos[this.turn] = [move.appear[1].x, move.appear[1].y];
- }
+ // Was opponent king swapped?
+ if (move.vanish.length == 2 && move.vanish[1].p == V.KING)
+ this.kingPos[this.turn] = [move.appear[1].x, move.appear[1].y];
this.cmoves.push(this.getCmove(move));
}
postUndo(move) {
super.postUndo(move);
- if (move.appear.length == 2) {
- if (move.appear[1].p == V.KING)
- this.kingPos[move.vanish[1].c] = [move.vanish[1].x, move.vanish[1].y];
- }
+ if (move.appear.length == 2 && move.appear[1].p == V.KING)
+ this.kingPos[move.vanish[1].c] = [move.vanish[1].x, move.vanish[1].y];
this.cmoves.pop();
}
getCurrentScore() {
const color = this.turn;
const kp = this.kingPos[color];
- if (color == "w" && kp[0] == 0)
- return "0-1";
- if (color == "b" && kp[0] == V.size.x - 1)
- return "1-0";
+ if (color == "w" && kp[0] == 0) return "0-1";
+ if (color == "b" && kp[0] == V.size.x - 1) return "1-0";
// King is not on the opposite edge: game not over
return "*";
}
finalSquare
);
}
+
};