}
}
// Captures
- const finalPieces = x + shiftX == lastRank
- ? [V.ROOK, V.KNIGHT, V.BISHOP, V.QUEEN]
- : [V.PAWN];
for (let shiftY of [-1, 1]) {
const sq = this.getSquareAfter([x,y], [shiftX,shiftY]);
if (
- sq &&
+ !!sq &&
this.board[sq[0]][sq[1]] != V.EMPTY &&
this.canTake([x, y], [sq[0], sq[1]])
) {
+ const finalPieces = sq[0] == lastRank
+ ? [V.ROOK, V.KNIGHT, V.BISHOP, V.QUEEN]
+ : [V.PAWN];
for (let piece of finalPieces) {
moves.push(
this.getBasicMove([x, y], [sq[0], sq[1]], {
return this.isAttackedByJump(sq, colors, V.KING, V.steps[V.KING]);
}
+ // NOTE: altering move in getBasicMove doesn't work and wouldn't be logical.
+ // This is a side-effect on board generated by the move.
static PlayOnBoard(board, move) {
board[move.vanish[0].x][move.vanish[0].y] = V.HOLE;
for (let psq of move.appear) board[psq.x][psq.y] = psq.c + psq.p;
return this.turn == "w" ? "0-1" : "1-0";
}
+ static get SEARCH_DEPTH() {
+ return 2;
+ }
+
evalPosition() {
let evaluation = 0;
for (let i = 0; i < V.size.x; i++) {
const piece = this.getPiece(move.start.x, move.start.y);
// Indicate start square + dest square, because holes distort the board
let notation =
- piece.toUpperCase() +
+ (piece != V.PAWN ? piece.toUpperCase() : "") +
V.CoordsToSquare(move.start) +
(move.vanish.length > move.appear.length ? "x" : "") +
V.CoordsToSquare(move.end);