{
let x = m.end.x + step[0];
let y = m.end.y + step[1];
- if (x>=0 && x<8 && y>=0 && y<8 && this.board[x][y] != VariantRules.EMPTY
- && this.getPiece(x,y) != VariantRules.PAWN)
+ if (V.OnBoard(x,y) && this.board[x][y] != V.EMPTY
+ && this.getPiece(x,y) != V.PAWN)
{
m.vanish.push(
new PiPo({p:this.getPiece(x,y),c:this.getColor(x,y),x:x,y:y}));
getPotentialKingMoves([x,y])
{
- const V = VariantRules;
// King cannot capture:
let moves = [];
- let [sizeX,sizeY] = V.size;
const steps = V.steps[V.ROOK].concat(V.steps[V.BISHOP]);
for (let step of steps)
{
- var i = x + step[0];
- var j = y + step[1];
- if (i>=0 && i<sizeX && j>=0 && j<sizeY && this.board[i][j] == VariantRules.EMPTY)
+ const i = x + step[0];
+ const j = y + step[1];
+ if (V.OnBoard(i,j) && this.board[i][j] == V.EMPTY)
moves.push(this.getBasicMove([x,y], [i,j]));
}
return moves.concat(this.getCastleMoves([x,y]));
isAttacked(sq, colors)
{
- if (this.getPiece(sq[0],sq[1]) == VariantRules.KING
- && this.isAttackedByKing(sq, colors))
- {
+ if (this.getPiece(sq[0],sq[1]) == V.KING && this.isAttackedByKing(sq, colors))
return false; //king cannot take...
- }
return (this.isAttackedByPawn(sq, colors)
|| this.isAttackedByRook(sq, colors)
|| this.isAttackedByKnight(sq, colors)