}
// Stage 1: as Checkered2. Stage 2: checkered pieces are autonomous
const stageInfo = V.ParseFen(fen).stage;
- this.stage = parseInt(stageInfo[0]);
+ this.stage = parseInt(stageInfo[0], 10);
this.sideCheckered = (this.stage == 2 ? stageInfo[1] : undefined);
}
this.postPlay(move);
}
- updateCastleFlags(move, piece) {
- const c = V.GetOppCol(this.turn);
- const firstRank = (c == "w" ? V.size.x - 1 : 0);
- // Update castling flags if rooks are moved
- const oppCol = this.turn;
- const oppFirstRank = V.size.x - 1 - firstRank;
- if (piece == V.KING && move.appear.length > 0)
- this.castleFlags[c] = [V.size.y, V.size.y];
- else if (
- move.start.x == firstRank && //our rook moves?
- this.castleFlags[c].includes(move.start.y)
- ) {
- const flagIdx = (move.start.y == this.castleFlags[c][0] ? 0 : 1);
- this.castleFlags[c][flagIdx] = V.size.y;
- }
- // NOTE: not "else if" because a rook could take an opposing rook
- if (
- move.end.x == oppFirstRank && //we took opponent rook?
- this.castleFlags[oppCol].includes(move.end.y)
- ) {
- const flagIdx = (move.end.y == this.castleFlags[oppCol][0] ? 0 : 1);
- this.castleFlags[oppCol][flagIdx] = V.size.y;
- }
- }
-
postPlay(move) {
if (move.appear.length == 0 && move.vanish.length == 0) {
this.stage = 2;
this.kingPos[c][0] = move.appear[0].x;
this.kingPos[c][1] = move.appear[0].y;
}
- this.updateCastleFlags(move, piece);
+ super.updateCastleFlags(move, piece);
// Does this move turn off a 2-squares pawn flag?
if ([1, 6].includes(move.start.x) && move.vanish[0].p == V.PAWN)
this.pawnFlags[move.start.x == 6 ? "w" : "b"][move.start.y] = false;
}
static GenRandInitFen(randomness) {
- // Add 16 pawns flags + empty cmovei + stage == 1:
+ // Add 16 pawns flags + empty cmove + stage == 1:
return ChessRules.GenRandInitFen(randomness)
.slice(0, -2) + "1111111111111111 - - 1";
}