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Tools.cpp
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235 lines (176 loc) · 4.39 KB
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/*
* File: Tools.cpp
* Author: Flip4it chess
*
* Created on March 12, 2010, 9:30 PM
*/
#include <stdlib.h>
#include<stdio.h>
#include "Tools.h"
extern FILE* debug_file;
Tools::Tools() {
}
//Intoarce pozitia primului bit de 1;
unsigned int Tools::bitScan (U64 b)
{
return magictable[((b&-b)*magic) >> 58];
}
/* Functii pentru generare mutari posibile pentru tipuri de piese.
* In cazul pieselor glisante, sunt incluse inclusiv piesele de la limita capete, atat ale
* engine-ului cat si ale inamicului.*/
//RESCRISA in Chessboard::getPseudoMoves
//BITBOARD Tools::getPossibleMoves(int pozitie, PIECE piesa)
//{
//// printBitBoard(pieceMoves[piesa][pozitie]);
// if(piesa==KNIGHT)
// return KNIGHT_MOVES[pozitie];
// return 0;
//}
//DEBUG: Afiseaza bitboard-ul (1 si 0) pe ecran.
void Tools::printBitBoard(BITBOARD board){
int i,j;
for(i=7;i>=0;i--){
for(j=0;j<8;j++)
if((board & ((U64)1<<(i*8+j))) !=0)
fprintf(debug_file," 1 ");
else
fprintf(debug_file," . ");
fprintf(debug_file,"\n");
}
fprintf(debug_file,"\n");
}
BITBOARD* Tools::generateKnightMoves()
{
// noNoWe noNoEa
// +15 +17
// | |
// noWeWe +6 __| |__+10 noEaEa
// \ /
// >0<
// __ / \ __
// soWeWe -10 | | -6 soEaEa
// | |
// -17 -15
// soSoWe soSoEa
BITBOARD *moves;
moves=(BITBOARD*)malloc(64*sizeof(BITBOARD));
int i;
BITBOARD board;
for(i=0;i<64;i++)
{
board=0;
//Daca se afla pe o coloana >=3
if(i/8<=6)
if(i%8 >= 2)
board|=(U64)1<<(i+6);
if(i/8<=6)
if(i%8 <= 5)
board|=(U64)1<<(i+10);
if(i/8<=5)
if(i%8 >=1)
board|=(U64)1<<(i+15);
if(i/8<=5)
if(i%8 <= 6)
board|=(U64)1<<(i+17);
if(i>=6)
if(i%8 <= 5)
board|=(U64)1<<(i-6);
if(i>=10)
if(i%8 >= 2)
board|=(U64)1<<(i-10);
if(i>=15)
if(i%8 <= 6)
board|=(U64)1<<(i-15);
if(i>=17)
if(i%8 >= 1)
board|=(U64)1<<(i-17);
moves[i]=board;
}
return moves;
}
BITBOARD* Tools::generateKingMoves(){
BITBOARD *moves;
moves=(BITBOARD*)malloc(64*sizeof(BITBOARD));
int i;
BITBOARD board;
for(i=0;i<64;i++)
{
board=0;
//poate muta toate pozitiile
if(i/8<=6)
board|=(U64)1<<(i+8);
if(i/8<=6)
if(i%8<=6)
board|=(U64)1<<(i+9);
if(i/8<=6)
if(i%8>=1)
board|=(U64)1<<(i+7);
if(i/8>=1)
board|=(U64)1<<(i-8);
if(i/8>=1)
if(i%8<=6)
board|=(U64)1<<(i-7);
if(i/8>=1)
if(i%8>=1)
board|=(U64)1<<(i-9);
moves[i]=board;
}
return moves;
}
// genereaza doar avansul 1 patratica in fata sau 2 (daca e la inceput)
BITBOARD* Tools::generateOnlyPownMoves(COLOR player){
BITBOARD *moves;
moves=(BITBOARD*)malloc(64*sizeof(BITBOARD));
int i;
BITBOARD board;
for(i=0;i<64;i++)
{
board=0;
//poate muta toate pozitiile
if(player==WHITE){
if(i/8<=6)
board|=(U64)1<<(i+8);
if(i/8==1)
board|=(U64)1<<(i+16);
}
else
{
if(i/8==6)
board|=(U64)1<<(i-16);
if(i/8>=1)
board|=(U64)1<<(i-8);
}
moves[i]=board;
}
return moves;
}
BITBOARD* Tools::generatePownAttackMoves(COLOR player){
BITBOARD *moves;
moves=(BITBOARD*)malloc(64*sizeof(BITBOARD));
int i;
BITBOARD board;
for(i=0;i<64;i++)
{
board=0;
//poate muta toate pozitiile
if(player==WHITE){
if(i/8<=6)
if(i%8>=1)
board|=(U64)1<<(i+7);
if(i/8<=6)
if(i%8<=6)
board|=(U64)1<<(i+9);
}
else
{
if(i/8>=1)
if(i%8>=1)
board|=(U64)1<<(i-9);
if(i/8>=1)
if(i%8<=6)
board|=(U64)1<<(i-7);
}
moves[i]=board;
}
return moves;
}