}
}
- static GenRandInitFen(randomness) {
- if (randomness == 0)
+ static GenRandInitFen(options) {
+ if (options.randomness == 0)
return "rnbq1knbr/9/9/9/4a4/9/9/9/RNBQ1KNBR w 0";
let pieces = { w: new Array(8), b: new Array(8) };
for (let c of ["w", "b"]) {
- if (c == 'b' && randomness == 1) {
+ if (c == 'b' && options.randomness == 1) {
pieces['b'] = pieces['w'];
break;
}
}
}
const kickedFrom = x + "-" + y;
- moves.forEach(m => m.by = kickedFrom)
+ moves.forEach(m => m.start.by = kickedFrom)
return moves;
}
const steps = V.steps[V.ROOK].concat(V.steps[V.BISHOP]);
const c = this.turn;
let moves = [];
+ let kicks = {};
for (let s of steps) {
const [i, j] = [x + s[0], y + s[1]];
if (
this.board[i][j] != V.EMPTY &&
this.getColor(i, j) == c
) {
- Array.prototype.push.apply(moves, this.tryKickFrom([i, j]));
+ const kmoves = this.tryKickFrom([i, j]);
+ kmoves.forEach(km => {
+ const key = V.CoordsToSquare(km.start) + V.CoordsToSquare(km.end);
+ if (!kicks[km]) {
+ moves.push(km);
+ kicks[km] = true;
+ }
+ });
}
}
- // And, always add the "end" move. For computer, keep only one
- outerLoop: for (let i=0; i < V.size.x; i++) {
- for (let j=0; j < V.size.y; j++) {
- if (this.board[i][j] != V.EMPTY && this.getColor(i, j) == c) {
- moves.push(super.getBasicMove([x, y], [i, j]));
- if (!!computer) break outerLoop;
+ if (Object.keys(kicks).length > 0) {
+ // And, always add the "end" move. For computer, keep only one
+ outerLoop: for (let i=0; i < V.size.x; i++) {
+ for (let j=0; j < V.size.y; j++) {
+ if (this.board[i][j] != V.EMPTY && this.getColor(i, j) == c) {
+ moves.push(super.getBasicMove([x, y], [i, j]));
+ if (!!computer) break outerLoop;
+ }
}
}
}
return moves;
}
- // No captures:
- getSlideNJumpMoves([x, y], steps, oneStep) {
- let moves = [];
- outerLoop: for (let step of steps) {
- let i = x + step[0];
- let j = y + step[1];
- let stepCount = 1;
- while (V.OnBoard(i, j) && this.board[i][j] == V.EMPTY) {
- moves.push(this.getBasicMove([x, y], [i, j]));
- if (!!oneStep) continue outerLoop;
- i += step[0];
- j += step[1];
- stepCount++;
- }
- }
- return moves;
+ canTake() {
+ return false;
}
// Extra arg "computer" to avoid trimming all redundant pass moves:
filterValid(moves) {
const L = this.kickedBy.length;
const kb = this.kickedBy[L-1];
- return moves.filter(m => !m.by || !kb[m.by]);
+ return moves.filter(m => !m.start.by || !kb[m.start.by]);
}
getCheckSquares() {
}
else {
this.subTurn++;
- if (!!move.by) {
+ if (!!move.start.by) {
const L = this.kickedBy.length;
- this.kickedBy[L-1][move.by] = true;
+ this.kickedBy[L-1][move.start.by] = true;
}
}
}
}
else {
this.subTurn--;
- if (!!move.by) {
+ if (!!move.start.by) {
const L = this.kickedBy.length;
- delete this.kickedBy[L-1][move.by];
+ delete this.kickedBy[L-1][move.start.by];
}
}
if (!passesOver) {