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fixed pawn capture + promotion action

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This commit is contained in:
Karma Riuk 2025-02-03 19:10:07 +01:00
parent 974af5d19f
commit 9d21141d3c
1 changed files with 25 additions and 3 deletions
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28
cpp/src/pieces/pawn.cpp
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@ -14,7 +14,18 @@ std::vector<Move> pawn_moves(const Board& b, const Coords xy) {
int8_t capturable_piece = b.squares[left.to_index()]; int8_t capturable_piece = b.squares[left.to_index()];
if (capturable_piece != 0) { if (capturable_piece != 0) {
if (my_colour != b.colour_at(left)) if (my_colour != b.colour_at(left))
ret.push_back(Move{xy.to_index(), left.to_index()}); if ((my_colour == White && left.y == 7)
|| (my_colour == Black && left.y == 0))
for (auto piece : {Rook, Knigt, Bishop, Queen})
ret.push_back(Move{
xy.to_index(),
left.to_index(),
.is_capturing = true,
.promoting_to = (int8_t) (my_colour | piece)
});
else
ret.push_back(Move{xy.to_index(), left.to_index()});
} }
} }
@ -25,7 +36,18 @@ std::vector<Move> pawn_moves(const Board& b, const Coords xy) {
int8_t capturable_piece = b.squares[right.to_index()]; int8_t capturable_piece = b.squares[right.to_index()];
if (capturable_piece != 0) { if (capturable_piece != 0) {
if (my_colour != b.colour_at(right)) if (my_colour != b.colour_at(right))
ret.push_back(Move{xy.to_index(), right.to_index()}); if ((my_colour == White && right.y == 7)
|| (my_colour == Black && right.y == 0))
for (auto piece : {Rook, Knigt, Bishop, Queen})
ret.push_back(Move{
xy.to_index(),
right.to_index(),
.is_capturing = true,
.promoting_to = (int8_t) (my_colour | piece)
});
else
ret.push_back(Move{xy.to_index(), right.to_index()});
} }
} }
@ -53,7 +75,7 @@ std::vector<Move> pawn_moves(const Board& b, const Coords xy) {
if (b.squares[new_xy.to_index()] != Piece::None) if (b.squares[new_xy.to_index()] != Piece::None)
break; break;
if (new_xy.y == 7 || new_xy.y == 0) if (new_xy.y == 7 || new_xy.y == 0)
for (auto piece : {Queen, Knigt, Bishop, Rook}) for (auto piece : {Rook, Knigt, Bishop, Queen})
ret.push_back(Move{ ret.push_back(Move{
xy.to_index(), xy.to_index(),
new_xy.to_index(), new_xy.to_index(),