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/***************************************************************************
* Brutal Chess
* http://brutalchess.sf.net
*
* File : bitboard.cpp
* Authors : Mike Cook, Joe Flint, Neil Pankey
**************************************************************************/
#include "board.h"
#include "bitboard.h"
#include <iostream>
void BitBoard::setBit(const BoardPosition & bp)
{
if(bp.isValid())
::setBit(m_board, bp);
}
void BitBoard::unsetBit(const BoardPosition & bp)
{
::unsetBit(m_board, bp);
}
void BitBoard::invert()
{
m_board = ~m_board;
}
unsigned long long BitBoard::maskRank(const BoardPosition & bp)
{
return ::maskRank(bp);
}
unsigned long long BitBoard::maskFile(const BoardPosition & bp)
{
return ::maskFile(bp);
}
BitBoard BitBoard::maskDiagNE(const BoardPosition & bp)
{
unsigned long long mask = 0LL;
BoardPosition p = bp;
for (p; !p.outNE(); p.moveNE()) {
mask |= getMask(p);
}
p = bp;
for (p = p.SW(); !p.outSW(); p.moveSW()) {
mask |= getMask(p);
}
return mask;
}
BitBoard BitBoard::maskDiagNW(const BoardPosition & bp)
{
unsigned long long mask = 0LL;
BoardPosition p = bp;
for (p; !p.outNW(); p.moveNW()) {
mask |= getMask(p);
}
p = bp;
for (p = p.SE(); !p.outSE(); p.moveSE()) {
mask |= getMask(p);
}
return mask;
}
std::ostream& operator<< (std::ostream & os, const BitBoard & bitboard)
{
unsigned long long b = bitboard.getBoard();
for (int rank = 8; rank > 0; --rank) {
for (char file = 'a'; file <= 'h'; ++file) {
bool o = b & getMask(BoardPosition(file, rank));
os << o << " ";
}
os << std::endl;
}
return os;
}
// End of file bitboard.cpp
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