getPotentialMovesFrom([x,y])
{
let standardMoves = super.getPotentialMovesFrom([x,y]);
+ const lastRank = this.turn == "w" ? 0 : 7;
if (this.getPiece(x,y) == VariantRules.KING)
return standardMoves; //king has to be treated differently (for castles)
let moves = [];
{
// A capture occured (m.vanish.length == 2)
m.appear[0].c = "c";
- moves.push(JSON.parse(JSON.stringify(m)));
- if (m.appear[0].p != m.vanish[1].p)
+ moves.push(m);
+ if (m.appear[0].p != m.vanish[1].p //avoid promotions:
+ && (m.vanish[0].p != VariantRules.PAWN || m.end.x != lastRank))
{
// Add transformation into captured piece
let m2 = JSON.parse(JSON.stringify(m));
- m2.vanish[1].p = m.appear[0].p;
+ m2.appear[0].p = m.vanish[1].p;
moves.push(m2);
}
}