x: ['b', 'k'],
y: ['q', 'q'],
z: ['q', 'k'],
- '_': ['k', 'k']
+ '@': ['k', 'k']
};
}
static fen2board(f) {
- // Underscore is character 95, in file w_
- return f.charCodeAt() <= 95 ? "w" + f.toLowerCase() : "b" + f;
+ // Arobase is character 64
+ return f.charCodeAt() <= 90 ? "w" + f.toLowerCase() : "b" + f;
}
static IsGoodPosition(position) {
if (position.length == 0) return false;
const rows = position.split("/");
if (rows.length != V.size.x) return false;
- let kingSymb = ['k', 'g', 'm', 'u', 'x', 'z', '_'];
+ let kingSymb = ['k', 'g', 'm', 'u', 'x', 'z', '@'];
let kings = { 'k': 0, 'K': 0 };
for (let row of rows) {
let sumElts = 0;
for (let i = 0; i < row.length; i++) {
- if (!!(row[i].toLowerCase().match(/[a-z_]/))) {
+ if (!!(row[i].toLowerCase().match(/[a-z@]/))) {
sumElts++;
if (kingSymb.includes(row[i])) kings['k']++;
// Not "else if", if two kings dancing together
this.kingPos = { w: [-1, -1], b: [-1, -1] };
const fenRows = V.ParseFen(fen).position.split("/");
const startRow = { 'w': V.size.x - 1, 'b': 0 };
- const kingSymb = ['k', 'g', 'm', 'u', 'x', 'z', '_'];
+ const kingSymb = ['k', 'g', 'm', 'u', 'x', 'z', '@'];
for (let i = 0; i < fenRows.length; i++) {
let k = 0;
for (let j = 0; j < fenRows[i].length; j++) {
const c = fenRows[i].charAt(j);
- if (!!(c.toLowerCase().match(/[a-z_]/))) {
+ if (!!(c.toLowerCase().match(/[a-z@]/))) {
if (kingSymb.includes(c))
this.kingPos["b"] = [i, k];
// Not "else if", in case of two kings dancing together
}
let baseMoves = [];
const c = this.turn;
- switch (piece || this.getPiece(x, y)) {
+ switch (piece) {
case V.PAWN: {
const firstRank = (c == 'w' ? 7 : 0);
baseMoves = this.getPotentialPawnMoves([x, y]).filter(m => {
r.piece == newState.piece &&
(
r.square.x == newState.square.x &&
- r.square.y == newState.square.y &&
+ r.square.y == newState.square.y
) &&
r.position == newState.position
);
// NOTE: lm.p != V.KING, always.
const piece =
!!lm
- ? lm.p :
- this.getPiece(move.vanish[0].x, move.vanish[0].y);
+ ? lm.p
+ : this.getPiece(move.vanish[0].x, move.vanish[0].y);
if (piece == V.KING)
this.kingPos[c] = [move.appear[0].x, move.appear[0].y];
this.updateCastleFlags(move, piece);