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mover.c
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/*
* mover.c
* hello
*
* Created by Aron Allen on 30/7/09.
* Copyright 2009 __MyCompanyName__. All rights reserved.
*
*/
#include "main.h"
BITBOARD moveNorthWest(PGAME game, BITBOARD piece){
BITBOARD move = 0;
if (bitsInBitboard(piece)!=1){
printf("mover/moveNorthWest: passed bitboard (piece) contains more, or less, than one bit. bitcount:%d",bitsInBitboard(piece));
return move;
}
if (piece & LEGAL_NORTH_WEST_MOVE){
if ((((*game).white & piece) || ((*game).black&piece&(*game).kings)) && (northWestRotate(piece) & (*game).notOccupied)){
move = northWestRotate(piece);
}
}
return move;
}
BITBOARD moveNorthEast(PGAME game, BITBOARD piece){
BITBOARD move = 0x0;
if (bitsInBitboard(piece)!=1){
printf("mover/moveNorthEast: passed bitboard (piece) contains more, or less, than one bit. bitcount:%d",bitsInBitboard(piece));
return 0;
}
if (piece & LEGAL_NORTH_EAST_MOVE){
if ((((*game).white & piece) || ((*game).black & (*game).kings & piece)) && (northEastRotate(piece) & (*game).notOccupied)){
move = northEastRotate(piece);
}
}
return move;
}
BITBOARD moveSouthWest(PGAME game, BITBOARD piece){
BITBOARD move = 0x0;
if (bitsInBitboard(piece)!=1){
printf("mover/moveSouthWest: passed bitboard (piece) contains more, or less, than one bit. bitcount:%d",bitsInBitboard(piece));
return 0;
}
if (piece & LEGAL_SOUTH_WEST_MOVE){
if ((((*game).black & piece) || ((*game).white & (*game).kings & piece)) && (southWestRotate(piece) & (*game).notOccupied)){
move = southWestRotate(piece);
}
}
return move;
}
BITBOARD moveSouthEast(PGAME game, BITBOARD piece){
BITBOARD move = 0;
if (bitsInBitboard(piece)!=1){
printf("mover/moveSouthEast: passed bitboard (piece) contains more, or less, than one bit. bitcount:%d",bitsInBitboard(piece));
return 0;
}
if (piece & LEGAL_SOUTH_EAST_MOVE){
if ((((*game).black & piece) || ((*game).white & (*game).kings & piece)) && (southEastRotate(piece) & (*game).notOccupied)){
move = southEastRotate(piece);
}
}
return move;
}
void findMoversForGame(PGAME game){
int i;
int a = 0;
//find all movers for white
if ((*game).turn=='w'){
piecesInGameForActivePlayer(game);
for (i=0;i<(*game).whitePieces.piecesCount;i++){
if ((*game).white&(*game).whitePieces.positionsBitboard[i]){
if (moveNorthWest(game, (*game).whitePieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1] = (moveNorthWest(game, (*game).whitePieces.positionsBitboard[i]));
(*game).mjs[a].intermediates[0] = (*game).whitePieces.positionsBitboard[i];
a++;
}
if (moveNorthEast(game, (*game).whitePieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1] = (moveNorthEast(game, (*game).whitePieces.positionsBitboard[i]));
(*game).mjs[a].intermediates[0] = (*game).whitePieces.positionsBitboard[i];
a++;
}
}
if ((*game).white&(*game).kings&(*game).whitePieces.positionsBitboard[i]){
if(moveSouthWest(game, (*game).whitePieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1] = moveSouthWest(game, (*game).whitePieces.positionsBitboard[i]);
(*game).mjs[a].intermediates[0] = (*game).whitePieces.positionsBitboard[i];
a++;
}
if(moveSouthEast(game,(*game).whitePieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1]= moveSouthEast(game,(*game).whitePieces.positionsBitboard[i]);
(*game).mjs[a].intermediates[0] = (*game).whitePieces.positionsBitboard[i];
a++;
}
}
}
}
//find all movers for black.
if ((*game).turn=='b'){
piecesInGameForActivePlayer(game);
for (i=0;i<(*game).blackPieces.piecesCount;i++){
if ((*game).black&(*game).kings&(*game).blackPieces.positionsBitboard[i]){
if (moveNorthWest(game,(*game).blackPieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1] = (moveNorthWest(game,(*game).blackPieces.positionsBitboard[i]));
(*game).mjs[a].intermediates[0] = (*game).blackPieces.positionsBitboard[i];
a++;
}
if (moveNorthEast(game,(*game).blackPieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1] = (moveNorthEast(game,(*game).blackPieces.positionsBitboard[i]));
(*game).mjs[a].intermediates[0] = (*game).blackPieces.positionsBitboard[i];
a++;
}
}
if ((*game).black&(*game).blackPieces.positionsBitboard[i]){
if(moveSouthWest(game,(*game).blackPieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1] = moveSouthWest(game,(*game).blackPieces.positionsBitboard[i]);
(*game).mjs[a].intermediates[0] = (*game).blackPieces.positionsBitboard[i];
a++;
}
if(moveSouthEast(game,(*game).blackPieces.positionsBitboard[i])){
(*game).mjs[a].intermediates[1]= moveSouthEast(game,(*game).blackPieces.positionsBitboard[i]);
(*game).mjs[a].intermediates[0] = (*game).blackPieces.positionsBitboard[i];
a++;
}
}
}
}
if (a >= MAX_MOVES) {
printf("move stack exceeded, panic!\n");
}
if ((*game).turn != 'w' && (*game).turn !='b') {
printf("ERROR ERROR ERROR wrong player, %c\n", (*game).turn );
}
(*game).mjCount = a;
return;
}