void Encoder::new_point(Point2f _new_position, unsigned int _print_select)
{
position = _new_position;
backlog[index % samples_size] = position;
index = (index+1) % samples_size;
switch(_print_select)
{
case PRINT_POLAR:
polar_coordinate();
break;
case PRINT_XY:
xy_coordinate();
break;
case NO_PRINT: default:
break;
}
}
string XQ::get_fen()const
{
if (m_player == Empty)
return string();
vector<char> chars;
for (sint y = 9; y >= 0; --y)
{
if (y != 9)
chars.push_back('/');
sint32 empty_count = 0;
for (uint x = 0; x < 9; ++x)
{
uint sq = xy_coordinate(x,y);
sint c = piece_char(coordinate(sq));
if (c)
{
if (empty_count)
{
chars.push_back(static_cast<char>('0' + empty_count));
empty_count = 0;
}
chars.push_back(static_cast<char>(c));
}
else
{
++empty_count;
}
}
if (empty_count)
{
chars.push_back(static_cast<char>('0' + empty_count));
}
}
chars.push_back(' ');
chars.push_back(m_player == Red ? 'r' : 'b');
return string(chars.begin(), chars.end());
}
bool XQ::set_fen(string const &fen)
{
clear();
uint idx = 0UL, len = (uint)fen.size();
uint y = 9UL, x = 0UL;
while (idx < len)
{
sint32 c = fen[idx++];
uint32 type = char_type(c);
if (type != InvaildPiece)
{
if (y >= 10UL || x >= 9UL)
{
//error
clear();
return false;
}
uint32 begin = type_begin(type);
uint32 end = type_end(type);
while (end >= begin)
{
if (piece(begin) == InvaildCoordinate)
{
break;
}
++begin;
}
if (begin > end)
{
//error
clear();
return false;
}
uint32 sq = xy_coordinate(x++, y);
m_coordinates[sq] = static_cast<uint8>(begin);
m_pieces[begin] = static_cast<uint8>(sq);
}
else if (c == ' ')
{
if (y || x != 9UL || (idx == len))
{
//error
clear();
return false;
}
c = fen[idx];
m_player = ((c == 'b') ? Black : Red);
for (int i = 0; i < 32; i++)
{
uint32 sq = piece(i);
if (sq != InvaildCoordinate)
{
if (!(coordinate_flag(sq) & piece_flag(i)))
{
//error
clear();
return false;
}
m_bitmap.setbit(sq);
}
}
//ok
return true;
}
else if (c == '/')
{
if (!y || x != 9UL)
{
//error
clear();
return false;
}
--y;
x = 0UL;
}
else if (c >= '1' && c <= '9')
{
x += c - '0';
}
else
{
//error
clear();
return false;
}
}
//error
clear();
return false;
}