Author: Gerd Isenberg
Date: 22:03:09 07/29/03
Go up one level in this thread
On July 29, 2003 at 20:02:03, Russell Reagan wrote:
>On July 29, 2003 at 16:34:36, Gerd Isenberg wrote:
>
>>Move is a class already, no virtuals, only inlined functions.
>
>Hi Gerd,
>
>Would you mind posting your move class declaration? I am always interested to
>see how people implement "simple" classes like this, because sometimes it ends
>up being not so simple :)
Hi Russell,
Don't like posting "real" source code...
Ok, the "outdated" current one, simply a union with some bitfields and inlines.
The next one becomes rather different.
Cheers,
Gerd
struct SMove
{
union
{
UINT32 u;
struct
{
unsigned from : 6;
unsigned to : 6;
unsigned kind : 5;
unsigned check : 1;
unsigned scored : 1;
unsigned score : 13;
};
};
__forceinline BOOL isMove() {
return (u & 0x0fff) != 0;}
__forceinline UINT getPiece() const {
return scPieceByKind[kind];}
__forceinline BOOL isReversable() const {
return scIsReverableByKind[kind];}
__forceinline BOOL isKingMove() const {
return scIsKingMoveByKind[kind];}
__forceinline BOOL equalCoordinates(SMOVE move) const {
return ((move.u & 0x0fff) == (u & 0x0fff)); }
__forceinline BOOL equalMoves(SMOVE move) const {
return ((move.u & 0x03ffff) == (u & 0x03ffff)); }
__forceinline BOOL unequalMoves(SMOVE move) const {
return ((move.u & 0x03ffff) != (u & 0x03ffff)); }
__forceinline BOOL equalMoves(UINT f, UINT t, UINT k, UINT c) {
return from == f && to == t && kind == k && check == c; }
__forceinline void operator=(int umove) {u = umove;}
protected:
static const UINT scPieceByKind[MK_NUMBER_OF_KINDS];
....
};
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