本文整理汇总了C++中Position::GetAttacks方法的典型用法代码示例。如果您正苦于以下问题：C++ Position::GetAttacks方法的具体用法？C++ Position::GetAttacks怎么用？C++ Position::GetAttacks使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Position的用法示例。
在下文中一共展示了Position::GetAttacks方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: GenCheckEvasions
void MoveList::GenCheckEvasions(const Position& pos)
{
Clear();
COLOR side = pos.Side();
COLOR opp = side ^ 1;
U64 freeOrOpp = ~pos.BitsAll(side);
U64 occ = pos.BitsAll();
U64 x, y;
FLD from, to;
PIECE piece, captured;
FLD K = pos.King(side);
U64 attackers = pos.GetAttacks(K, opp, occ);
U64 mask = attackers;
while (attackers)
{
from = PopLSB(attackers);
mask |= BB_BETWEEN[from][K];
}
int fwd = -8 + 16 * side;
int second = 6 - 5 * side;
int seventh = 1 + 5 * side;
piece = PW | side;
x = pos.Bits(piece);
while (x)
{
from = PopLSB(x);
int row = Row(from);
to = static_cast<FLD>(from + fwd);
if (!pos[to])
{
if (row == second)
{
if (BB_SINGLE[to] & mask)
Add(from, to, piece);
to = static_cast<FLD>(to + fwd);
if (!pos[to])
{
if (BB_SINGLE[to] & mask)
Add(from, to, piece);
}
}
else if (row == seventh)
{
if (BB_SINGLE[to] & mask)
{
Add(from, to, piece, NOPIECE, QW | side);
Add(from, to, piece, NOPIECE, RW | side);
Add(from, to, piece, NOPIECE, BW | side);
Add(from, to, piece, NOPIECE, NW | side);
}
}
else
{
if (BB_SINGLE[to] & mask)
Add(from, to, piece);
}
}
y = BB_PAWN_ATTACKS[from][side] & pos.BitsAll(opp) & mask;
while (y)
{
to = PopLSB(y);
captured = pos[to];
if (row == seventh)
{
Add(from, to, piece, captured, QW | side);
Add(from, to, piece, captured, RW | side);
Add(from, to, piece, captured, BW | side);
Add(from, to, piece, captured, NW | side);
}
else
Add(from, to, piece, captured);
}
}
to = pos.Ep();
if (to != NF)
{
y = BB_PAWN_ATTACKS[to][opp] & pos.Bits(PW | side);
while (y)
{
from = PopLSB(y);
Add(from, to, piece, PW | opp);
}
}
piece = NW | side;
x = pos.Bits(piece);
while (x)
{
from = PopLSB(x);
y = BB_KNIGHT_ATTACKS[from] & freeOrOpp & mask;
//.........这里部分代码省略.........
示例2: GenCheckEvasions
void MoveList::GenCheckEvasions(const Position& pos)
{
Clear();
COLOR side = pos.Side();
COLOR opp = side ^ 1;
U64 freeOrOpp = ~pos.BitsAll(side);
U64 occ = pos.BitsAll();
U64 x, y;
FLD from, to;
PIECE piece, captured;
FLD K = pos.King(side);
U64 attackers = pos.GetAttacks(K, opp, occ);
U64 mask = attackers;
while (attackers)
{
from = Bitboard::PopLSB(attackers);
mask |= Bitboard::Between(from, K);
}
int fwd = -8 + 16 * side;
int second = 6 - 5 * side;
int seventh = 1 + 5 * side;
piece = PW | side;
x = pos.Bits(piece);
while (x)
{
from = Bitboard::PopLSB(x);
int row = Row(from);
to = static_cast<FLD>(from + fwd);
if (!pos[to])
{
if (row == second)
{
if (Bitboard::Single(to) & mask)
Add(from, to, piece);
to = static_cast<FLD>(to + fwd);
if (!pos[to])
{
if (Bitboard::Single(to) & mask)
Add(from, to, piece);
}
}
else if (row == seventh)
{
if (Bitboard::Single(to) & mask)
{
Add(from, to, piece, NOPIECE, QW | side);
Add(from, to, piece, NOPIECE, RW | side);
Add(from, to, piece, NOPIECE, BW | side);
Add(from, to, piece, NOPIECE, NW | side);
}
}
else
{
if (Bitboard::Single(to) & mask)
Add(from, to, piece);
}
}
y = Bitboard::PawnAttacks(from, side) & pos.BitsAll(opp) & mask;
while (y)
{
to = Bitboard::PopLSB(y);
captured = pos[to];
if (row == seventh)
{
Add(from, to, piece, captured, QW | side);
Add(from, to, piece, captured, RW | side);
Add(from, to, piece, captured, BW | side);
Add(from, to, piece, captured, NW | side);
}
else
Add(from, to, piece, captured);
}
}
to = pos.Ep();
if (to != NF)
{
y = Bitboard::PawnAttacks(to, opp) & pos.Bits(PW | side);
while (y)
{
from = Bitboard::PopLSB(y);
Add(from, to, piece, PW | opp);
}
}
piece = NW | side;
x = pos.Bits(piece);
while (x)
{
from = Bitboard::PopLSB(x);
y = Bitboard::KnightAttacks(from) & freeOrOpp & mask;
//.........这里部分代码省略.........