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header.h
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//header.h
#ifndef DEFS_H
#define DEFS_H
#include "stdlib.h"
#include <stdio.h>
//#define DEBUG
#ifndef DEBUG
#define ASSERT(n)
#else
#define ASSERT(n) \
if(!(n)) { \
printf("%s - Failed ",#n); \
printf("On %s ",__DATE__); \
printf("At %s ",__TIME__); \
printf("IN File %s ",__FILE__); \
printf("At Line %d\n ",__LINE__); \
printf("In function %s\n ",__func__); \
exit(1);}
#endif
typedef unsigned long long u64;
#define NAME "abhi_engine 1.0"
#define SQ_NUM 120
#define MAXMOVES 2048
#define MAXPOSITIONMOVES 256
#define MAXDEPTH 64
#define MAX_HASH 2048
#define SETDEPTH 6
#define START_FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
#define INFINITE 30000
#define ISMATE (INFINITE - MAXDEPTH)
enum { EMPTY, wp, wn, wb, wr, wq, wk, bp, bn, bb, br, bq, bk };
enum {FILE_A, FILE_B, FILE_C, FILE_D ,FILE_E ,FILE_F ,FILE_G ,FILE_H, FILE_NONE };
enum { RANK_1, RANK_2, RANK_3, RANK_4, RANK_5, RANK_6, RANK_7, RANK_8, RANK_NONE };
enum {UCIMODE, XBOARDMODE, CONSOLEMODE};
enum { WHITE, BLACK, BOTH };
// 0000
enum {WO_O=1, WO_O_O=2,BO_O=4,BO_O_O=8};
enum {
A1=21, B1, C1, D1, E1, F1, G1, H1,
A2=31, B2, C2, D2, E2, F2, G2 ,H2,
A3=41, B3, C3, D3, E3 ,F3, G3, H3,
A4=51, B4, C4, D4, E4, F4, G4, H4,
A5=61, B5, C5, D5, E5, F5, G5, H5,
A6=71, B6, C6, D6, E6, F6, G6, H6,
A7=81, B7, C7, D7, E7, F7, G7, H7,
A8=91, B8, C8, D8, E8, F8, G8, H8, NO_SQ,OFFBOARD};
enum {FALSE, TRUE};
enum { HFNONE, HFALPHA, HFBETA, HFEXACT };
typedef struct {
int move;
int score;
}S_MOVE;
typedef struct {
S_MOVE moves[MAXPOSITIONMOVES];
int count;
}S_MOVELIST;
typedef struct {
u64 poskey;
int move;
int score;
int depth;
int flags;
}S_HASHENTRY;
typedef struct {
S_HASHENTRY *ptable;
int numentries;
int newwrite;
int overwrite;
int hit;
int cut;
}S_HASHTABLE;
typedef struct {
int move;
int castle;
int enpass;
int fiftymove;
u64 poskey;
}S_UNDO;
typedef struct {
int pieces[SQ_NUM];
u64 pawns[3]; //01000000 00000000 00000000 ......
int kingsq[2];
int side;
int enpass;
int fiftymove;
int castle;
int ply;
int historyply;
u64 poskey;
int pceNum[13];
int bigpce[2]; //anything but pawn
int majpce[2];
int minpce[2];
int material[2];
S_UNDO history[MAXMOVES];
//piece list
int plist[13][10];
// plist[wn][0]=E1;
// plist[wn][1]=D4; .. .. ..
S_HASHTABLE hashtable[1];
int pvarray[MAXDEPTH];
int searchhistory[13][SQ_NUM];
int searchkillers[2][MAXDEPTH];
}S_BOARD;
typedef struct {
unsigned long starttime;
unsigned long stoptime;
int depth;
int depthset;
int timeset;
int movestogo;
int infinite;
long nodes;
int quit;
int stopped;
float fh;
float fhf;
int nullcut;
int GAME_MODE;
int POST_THINKING;
}S_SEARCHINFO;
typedef struct {
int usebook;
}S_OPTIONS;
/*GAME MOVE*/
/* 7 f
0000 0000 0000 0000 0000 0111 1111 -> from 0x7f
0000 0000 0000 0011 1111 1000 0000 -> to >> 7, 0x7f
0000 0000 0011 1100 0000 0000 0000 -> captured >> 14 , 0xf
0000 0000 0100 0000 0000 0000 0000 -> ep 0x40000
0000 0000 1000 0000 0000 0000 0000 -> pawn start 0x80000
0000 1111 0000 0000 0000 0000 0000 -> promoted >> 20, 0xf
0001 0000 0000 0000 0000 0000 0000 -> castle 0x100000
*/
#define FROMSQ(m) ((m) & 0x7F)
#define TOSQ(m) (((m)>>7) & 0x7F)
#define CAPTURED(m) (((m)>>14) & 0xF)
#define PROMOTED(m) (((m)>>20) & 0xF)
#define MFLAGEP 0x40000
#define MFLAGPS 0x80000
#define MFLAGCA 0x1000000
#define MFLAGCAP 0x7C000
#define MFLAGPROM 0xF00000
#define NOMOVE 0
/* macros */
#define FR2SQ(f,r) ((21 +(f))+((r)*10))
#define SQ64(n) sq120tosq64[n]
#define SQ120(n) sq64tosq120[n]
#define POP(n) popbit(n)
#define CNT(n) countbits(n)
#define clrbit(bitb,sq) ( (bitb) &= clearmask[sq] )
#define setbit(bitb,sq) ( (bitb) |= setmask[sq] )
#define isbq(p) (piecebishopqueen[(p)])
#define isrq(p) (piecerookqueen[(p)])
#define iskn(p) (pieceknight[(p)])
#define iski(p) (pieceking[(p)])
/* global */
extern int sq120tosq64[SQ_NUM];
extern int sq64tosq120[64];
extern u64 setmask[64];
extern u64 clearmask[64];
extern u64 piecekeys[13][120];
extern u64 sidekey;
extern u64 castlekeys[16];
extern char pcechar[];
extern char sidechar[];
extern char filechar[];
extern char rankchar[];
extern int piecebig[13];
extern int piecemaj[13];
extern int piecemin[13];
extern int pieceval[13];
extern int piececol[13];
extern int piecepawn[13];
extern const int mirror64[64];
extern int filesbrd[SQ_NUM];
extern int ranksbrd[SQ_NUM];
extern int pieceknight[13];
extern int pieceking[13];
extern int piecerookqueen[13];
extern int piecebishopqueen[13];
extern u64 filebbmask[8];
extern u64 rankbbmask[8];
extern u64 blackpassedmask[64];
extern u64 whitepassedmask[64];
extern u64 isolatedmask[64];
extern S_OPTIONS engineoptions[1];
/* function */
//init.c
extern void Allinit();
//extern void inithashkeys();
//bitboard.c
extern void printbitboard(u64 bitb);
extern int popbit(u64 *bitb);
extern int countbits(u64 bitb);
//hashkeys.c
extern u64 generateposkey(const S_BOARD *pos);
//board.c
extern void resetboard(S_BOARD *pos);
extern int parse_fen(char *fen,S_BOARD *pos);
extern void printboard(const S_BOARD * pos);
extern void updatelistmaterial(S_BOARD *pos);
extern int checkboard(const S_BOARD *pos);
//attack.c
extern int sqattacked(const int sq, const side, const S_BOARD *pos);
//io.c
extern char * prmove(const int move);
extern char * prsq(const int sq);
extern void printmovelist(const S_MOVELIST *list);
extern int parsemove(char * ch,S_BOARD *p);
//movegen.c
extern void generateallmoves(const S_BOARD *pos,S_MOVELIST *list);
extern int moveexists(S_BOARD *pos,const int move);
extern int InitMvvLva();
extern void generateallcaps(const S_BOARD* ,S_MOVELIST *);
//makemove.c
extern int makemove(S_BOARD *pos,int move);
extern void takemove(S_BOARD *pos);
extern void makenullmove(S_BOARD *);
extern void takenullmove(S_BOARD *);
//validate.c
extern int sqonboard(const int sq);
extern int sidevalid(const int side);
extern int filerankvalid(const int fr);
extern int piecevalidempty(const int pce);
extern int piecevalid(const int pce);
extern int movelistok(const S_MOVELIST *,const S_BOARD *);
extern int sqis120(const int sq);
extern void DebugAnalysisTest(S_BOARD *pos,S_SEARCHINFO *info);
// perft.c
extern void perfttest(int depth, S_BOARD *pos);
//search.c
extern void searchposition(S_BOARD *,S_SEARCHINFO *);
//misc.c
extern int gettime();
extern void readinput(S_SEARCHINFO *info);
//pvtable.c
extern void inithashtable(S_HASHTABLE *table,const int);
extern void storehashentry(S_BOARD *pos, const int move,int score,const int flags,const depth);
extern int probehashentry(S_BOARD *pos,int *move,int *score, int alpha,int beta,int depth);
extern int getpvline(const int depth, S_BOARD *pos);
extern void clearhashtable(S_HASHTABLE *table);
extern int probepvmove(const S_BOARD *pos);
//evaluate.c
extern int evalposition(const S_BOARD *pos);
//uci.c
extern void uci_loop(S_BOARD *pos, S_SEARCHINFO *info);
//xboard.c
extern void console_loop(S_BOARD *pos, S_SEARCHINFO *info);
extern void xboard_loop(S_BOARD *pos, S_SEARCHINFO *info);
//polybook.c
extern u64 polykeyfromboard(const S_BOARD *);
extern void initpolybook();
extern void cleanpolybook();
extern int getbookmove(S_BOARD * board);
#endif