/usr/include/osl/rating/feature/square.h is in libosl-dev 0.6.0-3.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*/
#ifndef FEATURE_POSITION_H
#define FEATURE_POSITION_H
#include "osl/rating/feature.h"
#include "osl/move.h"
#include "osl/ptypeTable.h"
#include <string>
namespace osl
{
namespace rating
{
struct DropPtype
{
Ptype ptype;
bool drop;
DropPtype(Ptype p, bool d) : ptype(p), drop(d)
{
}
bool match(Move m) const
{
return (m.ptype() == ptype) && (m.isDrop() == drop);
}
static std::string name(Ptype ptype, bool drop)
{
return std::string(Ptype_Table.getCsaName(ptype)) + (drop ? "d" : "m");
}
enum { UNIT = PTYPE_MAX+1-PTYPE_PIECE_MIN + (PTYPE_MAX+1 - (PTYPE_BASIC_MIN+1)) };
static int index(Move move)
{
const Ptype ptype = move.ptype();
int index;
if (! isBasic(ptype) || ptype == KING)
index = ptype - PTYPE_PIECE_MIN;
else
index = (PTYPE_BASIC_MIN+1-PTYPE_PIECE_MIN) + (ptype - (PTYPE_BASIC_MIN+1))*2 + move.isDrop();
return index;
}
};
class RelativeKingX : public Feature
{
int x, old_x;
Ptype ptype;
bool attack;
public:
static const std::string name(int x, int old_x, bool /*attack*/, Ptype);
RelativeKingX(int ix, int iox, bool a, Ptype p)
: Feature(name(ix,iox,a,p)), x(ix), old_x(iox), ptype(p), attack(a) {}
// [0,8]
static int makeX(bool attack, const NumEffectState& state, Move move)
{
const Square king = state.kingSquare(attack ? alt(move.player()) : move.player());
return abs(move.to().x() - king.x());
}
// [0,9]
static int makeOldX(bool attack, const NumEffectState& state, Move move)
{
if (move.isDrop())
return 9;
const Square king = state.kingSquare(attack ? alt(move.player()) : move.player());
return abs(move.from().x() - king.x());
}
bool match(const NumEffectState& state, Move move, const RatingEnv&) const
{
if (ptype != move.ptype())
return false;
return makeX(attack, state, move) == x && makeOldX(attack, state, move) == old_x;
}
static int index(bool attack, const NumEffectState& state, Move move)
{
const int x = makeX(attack, state, move), old_x = makeOldX(attack, state, move);
const int ptype = move.ptype() - PTYPE_PIECE_MIN;
return (x*10+old_x)*(PTYPE_MAX+1 - PTYPE_PIECE_MIN) + ptype;
}
};
class RelativeKingY : public Feature
{
int y, old_y;
Ptype ptype;
bool attack;
public:
static const std::string name(int y, int old_y, bool /*attack*/, Ptype ptype);
RelativeKingY(int iy, int ioy, bool a, Ptype p)
: Feature(name(iy,ioy,a,p)), y(iy), old_y(ioy), ptype(p), attack(a) {}
// [-8,8]
static int makeY(bool attack, const NumEffectState& state, Move move)
{
const Square king = state.kingSquare(attack ? alt(move.player()) : move.player());
int diff = move.to().y() - king.y();
if (move.player() == WHITE)
diff = -diff;
return diff;
}
// [-8,9]
static int makeOldY(bool attack, const NumEffectState& state, Move move)
{
if (move.isDrop())
return 9;
const Square king = state.kingSquare(attack ? alt(move.player()) : move.player());
int diff = move.from().y() - king.y();
if (move.player() == WHITE)
diff = -diff;
return diff;
}
bool match(const NumEffectState& state, Move move, const RatingEnv&) const
{
if (ptype != move.ptype())
return false;
return makeY(attack, state, move) == y && makeOldY(attack, state, move) == old_y;
}
static int index(bool attack, const NumEffectState& state, Move move)
{
const int y = makeY(attack, state, move) + 8;
const int old_y = makeOldY(attack, state, move) + 8;
const int ptype = move.ptype() - PTYPE_PIECE_MIN;
return (y*18+old_y)*(PTYPE_MAX+1 - PTYPE_PIECE_MIN) + ptype;
}
};
class SquareX : public Feature, DropPtype
{
int x;
static const std::string name(int x);
public:
SquareX(int ix, Ptype ptype, bool drop)
: Feature(name(ix)+DropPtype::name(ptype, drop)), DropPtype(ptype, drop), x(ix) {}
static int makeX(Move move)
{
int mx = move.to().x();
if (mx > 5)
mx = 10-mx;
return mx;
}
bool match(const NumEffectState& , Move move, const RatingEnv&) const
{
if (! DropPtype::match(move))
return false;
return x == makeX(move);
}
};
class SquareY : public Feature, DropPtype
{
int y;
static const std::string name(int y);
public:
SquareY(int iy, Ptype ptype, bool drop)
: Feature(name(iy)+DropPtype::name(ptype, drop)), DropPtype(ptype, drop), y(iy) {}
static int makeY(Move move)
{
int my = move.to().y();
if (move.player() == WHITE)
my = 10 - my;
return my;
}
bool match(const NumEffectState&, Move move, const RatingEnv&) const
{
if (! DropPtype::match(move))
return false;
return y == makeY(move);
}
};
}
}
#endif /* FEATURE_POSITION_H */
// ;;; Local Variables:
// ;;; mode:c++
// ;;; c-basic-offset:2
// ;;; End:
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