getSquareOccupation(i, j, mirrorSide)
{
const piece = this.getPiece(i,j);
- const V = VariantRules;
if (mirrorSide==1 && Object.keys(V.ALICE_CODES).includes(piece))
return this.board[i][j];
else if (mirrorSide==2 && Object.keys(V.ALICE_PIECES).includes(piece))
getSideBoard(mirrorSide)
{
// Build corresponding board from complete board
- const [sizeX,sizeY] = VariantRules.size;
- let sideBoard = doubleArray(sizeX, sizeY, "");
- for (let i=0; i<sizeX; i++)
+ let sideBoard = doubleArray(V.size.x, V.size.y, "");
+ for (let i=0; i<V.size.x; i++)
{
- for (let j=0; j<sizeY; j++)
+ for (let j=0; j<V.size.y; j++)
sideBoard[i][j] = this.getSquareOccupation(i, j, mirrorSide);
}
return sideBoard;
// NOTE: castle & enPassant https://www.chessvariants.com/other.dir/alice.html
getPotentialMovesFrom([x,y], sideBoard)
{
- const pieces = Object.keys(VariantRules.ALICE_CODES);
- const codes = Object.keys(VariantRules.ALICE_PIECES);
+ const pieces = Object.keys(V.ALICE_CODES);
+ const codes = Object.keys(V.ALICE_PIECES);
const mirrorSide = (pieces.includes(this.getPiece(x,y)) ? 1 : 2);
// Search valid moves on sideBoard
// appear[i] must be an empty square on the other board
for (let psq of m.appear)
{
- if (this.getSquareOccupation(psq.x,psq.y,3-mirrorSide) != VariantRules.EMPTY)
+ if (this.getSquareOccupation(psq.x,psq.y,3-mirrorSide) != V.EMPTY)
return false;
}
}
- else if (this.board[m.end.x][m.end.y] != VariantRules.EMPTY)
+ else if (this.board[m.end.x][m.end.y] != V.EMPTY)
{
// Attempt to capture
const piece = this.getPiece(m.end.x,m.end.y);
if (mirrorSide==1)
{
m.appear.forEach(psq => { //forEach: castling taken into account
- psq.p = VariantRules.ALICE_CODES[psq.p]; //goto board2
+ psq.p = V.ALICE_CODES[psq.p]; //goto board2
});
}
else //move on board2: mark vanishing pieces as Alice
{
m.vanish.forEach(psq => {
- psq.p = VariantRules.ALICE_CODES[psq.p];
+ psq.p = V.ALICE_CODES[psq.p];
});
}
// Fix en-passant captures
- if (m.vanish[0].p == VariantRules.PAWN
- && m.vanish.length == 2 && this.board[m.end.x][m.end.y] == VariantRules.EMPTY)
+ if (m.vanish[0].p == V.PAWN && m.vanish.length == 2
+ && this.board[m.end.x][m.end.y] == V.EMPTY)
{
m.vanish[1].c = this.getOppCol(this.getColor(x,y));
// In the special case of en-passant, if
// - board2 takes board1 : vanish[1] --> normal
let van = m.vanish[1];
if (mirrorSide==1 && codes.includes(this.getPiece(van.x,van.y)))
- van.p = VariantRules.ALICE_CODES[van.p];
+ van.p = V.ALICE_CODES[van.p];
else if (mirrorSide==2 && pieces.includes(this.getPiece(van.x,van.y)))
- van.p = VariantRules.ALICE_PIECES[van.p];
+ van.p = V.ALICE_PIECES[van.p];
}
return true;
});
const color = this.turn;
const oppCol = this.getOppCol(color);
var potentialMoves = [];
- let [sizeX,sizeY] = VariantRules.size;
let sideBoard = [this.getSideBoard(1), this.getSideBoard(2)];
- for (var i=0; i<sizeX; i++)
+ for (var i=0; i<V.size.x; i++)
{
- for (var j=0; j<sizeY; j++)
+ for (var j=0; j<V.size.y; j++)
{
- if (this.board[i][j] != VariantRules.EMPTY && this.getColor(i,j) == color)
+ if (this.board[i][j] != V.EMPTY && this.getColor(i,j) == color)
{
const mirrorSide =
- Object.keys(VariantRules.ALICE_CODES).includes(this.getPiece(i,j))
+ Object.keys(V.ALICE_CODES).includes(this.getPiece(i,j))
? 1
: 2;
Array.prototype.push.apply(potentialMoves,
// Play on sideboards [TODO: only one sideBoard required]
playSide(move, sideBoard)
{
- const pieces = Object.keys(VariantRules.ALICE_CODES);
+ const pieces = Object.keys(V.ALICE_CODES);
move.vanish.forEach(psq => {
const mirrorSide = (pieces.includes(psq.p) ? 1 : 2);
- sideBoard[mirrorSide-1][psq.x][psq.y] = VariantRules.EMPTY;
+ sideBoard[mirrorSide-1][psq.x][psq.y] = V.EMPTY;
});
move.appear.forEach(psq => {
const mirrorSide = (pieces.includes(psq.p) ? 1 : 2);
- const piece = (mirrorSide == 1 ? psq.p : VariantRules.ALICE_PIECES[psq.p]);
+ const piece = (mirrorSide == 1 ? psq.p : V.ALICE_PIECES[psq.p]);
sideBoard[mirrorSide-1][psq.x][psq.y] = psq.c + piece;
- if (piece == VariantRules.KING)
+ if (piece == V.KING)
this.kingPos[psq.c] = [psq.x,psq.y];
});
}
// Undo on sideboards
undoSide(move, sideBoard)
{
- const pieces = Object.keys(VariantRules.ALICE_CODES);
+ const pieces = Object.keys(V.ALICE_CODES);
move.appear.forEach(psq => {
const mirrorSide = (pieces.includes(psq.p) ? 1 : 2);
- sideBoard[mirrorSide-1][psq.x][psq.y] = VariantRules.EMPTY;
+ sideBoard[mirrorSide-1][psq.x][psq.y] = V.EMPTY;
});
move.vanish.forEach(psq => {
const mirrorSide = (pieces.includes(psq.p) ? 1 : 2);
- const piece = (mirrorSide == 1 ? psq.p : VariantRules.ALICE_PIECES[psq.p]);
+ const piece = (mirrorSide == 1 ? psq.p : V.ALICE_PIECES[psq.p]);
sideBoard[mirrorSide-1][psq.x][psq.y] = psq.c + piece;
- if (piece == VariantRules.KING)
+ if (piece == V.KING)
this.kingPos[psq.c] = [psq.x,psq.y];
});
}
const color = this.turn;
this.playSide(move, sideBoard); //no need to track flags
const kp = this.kingPos[color];
- const mirrorSide = sideBoard[0][kp[0]][kp[1]] != VariantRules.EMPTY ? 1 : 2;
+ const mirrorSide = (sideBoard[0][kp[0]][kp[1]] != V.EMPTY ? 1 : 2);
let saveBoard = this.board;
this.board = sideBoard[mirrorSide-1];
let res = this.isAttacked(kp, [this.getOppCol(color)]);
{
this.play(move);
const color = this.turn; //opponent
- const pieces = Object.keys(VariantRules.ALICE_CODES);
+ const pieces = Object.keys(V.ALICE_CODES);
const kp = this.kingPos[color];
const mirrorSide = (pieces.includes(this.getPiece(kp[0],kp[1])) ? 1 : 2);
let sideBoard = this.getSideBoard(mirrorSide);
checkGameEnd()
{
- const pieces = Object.keys(VariantRules.ALICE_CODES);
+ const pieces = Object.keys(V.ALICE_CODES);
const color = this.turn;
const kp = this.kingPos[color];
const mirrorSide = (pieces.includes(this.getPiece(kp[0],kp[1])) ? 1 : 2);
getNotation(move)
{
- if (move.appear.length == 2 && move.appear[0].p == VariantRules.KING)
+ if (move.appear.length == 2 && move.appear[0].p == V.KING)
{
if (move.end.y < move.start.y)
return "0-0-0";
return "0-0";
}
- const finalSquare =
- String.fromCharCode(97 + move.end.y) + (VariantRules.size[0]-move.end.x);
+ const finalSquare = String.fromCharCode(97 + move.end.y) + (V.size.x-move.end.x);
const piece = this.getPiece(move.start.x, move.start.y);
const captureMark = (move.vanish.length > move.appear.length ? "x" : "");
projects / vchess.git / blobdiff