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AI.c
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#include "chess.h"
bool AI_on = false;
int DEPTH = 5;
void loadBools(){
gameOver = lastTurnBoardConfiguration.gameOver;
leftBlackRookDidNotMove = lastTurnBoardConfiguration.leftBlackRookDidNotMove ;
leftWhiteRookDidNotMove = lastTurnBoardConfiguration.leftWhiteRookDidNotMove;
rightBlackRookDidNotMove = lastTurnBoardConfiguration.rightBlackRookDidNotMove;
rightWhiteRookDidNotMove = lastTurnBoardConfiguration.rightWhiteRookDidNotMove;
blackKingDidNotMove = lastTurnBoardConfiguration.blackKingDidNotMove;
whiteKingDidNotMove = lastTurnBoardConfiguration.whiteKingDidNotMove;
}
/*
Old version of calculating board value
struct tile{
int wages;
char tileName;
} tableTileWages[] = {
{-10, 'P'}, {-20, 'S'}, {-30, 'B'}, {-50, 'R'}, {-90, 'Q'}, {-300, 'K'},
{10, 'p'}, {20, 's'}, {30, 'b'}, {50, 'r'}, {90, 'q'}, {300, 'k'}, {0, 'E'}
};
int evaluateBoard(char board[]){
int res = 0;
for(int i = 0; i < 64; i++){
double temp = 0;
if (board[i] != 'E'){
// here we can use later union or simple ENUM
for(int j = 0; j < 12; j++){
if (board[i] == tableTileWages[j].tileName){
temp = (double)tableTileWages[j].wages;
if(board[i] == 'K') temp += kingWhiteWages[i/8][i%8];
else if(board[i] == 'k') temp += kingBlackWages[i/8][i%8];
else if(board[i] == 'Q') temp += queenWages[i/8][i%8];
else if(board[i] == 'q') temp += queenWages[i/8][i%8];
else if(board[i] == 'R') temp += rookWhiteWages[i/8][i%8];
else if(board[i] == 'r') temp += rookBlackWages[i/8][i%8];
else if(board[i] == 'B') temp += bishopWhiteWages[i/8][i%8];
else if(board[i] == 'b') temp += bishopBlackWages[i/8][i%8];
else if(board[i] == 'S') temp += knightWages[i/8][i%8];
else if(board[i] == 's') temp += knightWages[i/8][i%8];
else if(board[i] == 'P') temp += pawnWhiteWages[i/8][i%8];
else if(board[i] == 'p') temp += pawnBlackWages[i/8][i%8];
res += temp;
break;
}
}
}
}
return res;
}
*/
double tileWages[120][8][8] = {0};
double knightWages[8][8] = {
{-5.0, -4.0, -3.0, -3.0, -3.0, -3.0, -4.0, -5.0},
{-4.0, -2.0, 0.0, 0.0, 0.0, 0.0, -2.0, -4.0},
{-3.0, 0.0, 2.0, 1.5, 1.5, 1.0, 0.0, -3.0},
{-3.0, 0.5, 1.5, 2.0, 2.0, 1.5, 0.5, -3.0},
{-3.0, 0.0, 1.5, 2.0, 2.0, 1.5, 0.0, -3.0},
{-3.0, 0.5, 1.0, 1.5, 1.5, 1.0, 0.5, -3.0},
{-4.0, -2.0, 0.0, 0.5, 0.5, 0.0, -2.0, -4.0},
{-5.0, -4.0, -3.0, -3.0, -3.0, -3.0, -4.0, -5.0}
};
double queenWages[8][8] = {
{-2.0, -1.0, -1.0, -0.5, -0.5, -1.0, -1.0, -2.0},
{-1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0},
{-1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0},
{-0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -0.5},
{ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -0.5},
{-1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0},
{-1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0},
{-2.0, -1.0, -1.0, -0.5, -0.5, -1.0, -1.0, -2.0}
};
double bishopWhiteWages[8][8] = {
{-2.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -2.0},
{-1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0},
{-1.0, 0.0, 0.5, 1.0, 1.0, 0.5, 0.0, -1.0},
{-1.0, 0.5, 0.5, 1.0, 1.0, 0.5, 0.5, -1.0},
{-1.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0, -1.0},
{-1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, -1.0},
{-1.0, 0.5, 0.0, 0.0, 0.0, 0.0, 0.5, -1.0},
{-2.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -2.0}
};
double bishopBlackWages[8][8] = {
{-2.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -2.0},
{-1.0, 0.5, 0.0, 0.0, 1.0, 0.0, 0.5, -1.0},
{-1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, -1.0},
{-1.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0, -1.0},
{-1.0, 0.5, 0.5, 1.0, 1.0, 0.5, 0.5, -1.0},
{-1.0, 0.0, 0.5, 1.0, 1.0, 0.5, 0.0, -1.0},
{-1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.0},
{-2.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, -2.0},
};
double rookWhiteWages[8][8] = {
{ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
{ 0.5, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.5},
{ 1.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.5},
{-0.5, 2.0, 2.0, 0.0, 0.0, 2.0, 2.0, -0.5},
{-0.5, 0.0, 0.0, 2.0, 2.0, 0.0, 0.0, -0.5},
{-0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -0.5},
{-0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -0.5},
{ 0.0, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0}
};
double rookBlackWages[8][8] = {
{ 0.0, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0},
{-0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -0.5},
{-0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -0.5},
{-0.5, 0.0, 0.0, 2.0, 2.0, 0.0, 0.0, -0.5},
{-0.5, 2.0, 2.0, 0.0, 0.0, 2.0, 2.0, -0.5},
{ 1.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.5},
{ 0.5, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.5},
{ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0}
};
double kingWhiteWages[8][8] = {
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0},
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0},
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0},
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0},
{-2.0, -3.0, -3.0, -4.0, -4.0, -3.0, -3.0, -2.0},
{-1.0, -2.0, -2.0, -2.0, -2.0, -2.0, -2.0, -1.0},
{ 2.0, 2.0, 0.0, 0.0, 0.0, 0.0, 2.0, 2.0},
{ 2.0, 5.0, 0.0, 0.0, 0.0, 0.0, 5.0, 2.0}
};
double kingBlackWages[8][8] = {
{ 2.0, 5.0, 0.0, 0.0, 0.0, 0.0, 5.0, 2.0},
{ 2.0, 2.0, 0.0, 0.0, -1.0, 0.0, 2.0, 2.0},
{-1.0, -2.0, -2.0, -2.0, -2.0, -2.0, -2.0, -1.0},
{-2.0, -3.0, -3.0, -4.0, -4.0, -3.0, -3.0, -2.0},
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0},
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0},
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0},
{-3.0, -4.0, -4.0, -5.0, -5.0, -4.0, -4.0, -3.0}
};
double pawnWhiteWages[8][8] = {
{50.0, 50.0, 50.0, 50.0, 50.0, 50.0, 50.0, 50.0},
{5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0},
{2.0, 2.0, 2.0, 3.0, 3.0, 2.0, 2.0, 2.0},
{1.5, 1.5, 1.0, 2.5, 2.5, 1.5, 1.5, 1.5},
{0.0, 0.0, 0.0, 7.0, 7.0, 0.0, 0.0, 0.0},
{0.5, -0.5, -1.0, 0.0, 0.0, -1.0, -0.5, 0.5},
{0.5, 1.0, 1.0, -3.0, -3.0, 1.0, 1.0, 0.5},
{0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0}
};
double pawnBlackWages[8][8] = {
{0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
{0.5, 1.0, 1.0, -3.0, -3.0, 1.0, 1.0, 0.5},
{0.5, -0.5, -1.0, 0.0, 0.0, -1.0, -0.5, 0.5},
{0.0, 0.0, 0.0, 7.0, 7.0, 0.0, 0.0, 0.0},
{1.5, 1.5, 1.0, 2.5, 2.5, 1.5, 1.5, 1.5},
{2.0, 2.0, 2.0, 3.0, 3.0, 2.0, 2.0, 2.0},
{5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0},
{50.0, 50.0, 50.0, 50.0, 50.0, 50.0, 50.0, 50.0}
};
int wages[120] = {0};
void wagesUpdate(){
wages[80] = -25;
wages[83] = -60;
wages[66] = -60;
wages[82] = -120;
wages[81] = -200;
wages[75] = -600;
wages[69] = 0;
wages[112] = 25;
wages[115] = 60;
wages[98] = 60;
wages[114] = 120;
wages[113] = 200;
wages[107] = 600;
for(int i = 0; i < 64; i++) tileWages[113][i/8][i%8] = queenWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[81][i/8][i%8] = queenWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[80][i/8][i%8] = pawnWhiteWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[112][i/8][i%8] = pawnBlackWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[66][i/8][i%8] = bishopWhiteWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[98][i/8][i%8] = bishopBlackWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[75][i/8][i%8] = kingWhiteWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[107][i/8][i%8] = kingBlackWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[82][i/8][i%8] = rookWhiteWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[114][i/8][i%8] = rookBlackWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[83][i/8][i%8] = knightWages[i/8][i%8];
for(int i = 0; i < 64; i++) tileWages[115][i/8][i%8] = knightWages[i/8][i%8];
}
double evaluateBoard(char board[]){
double res = 0.0;
for(int i = 0; i < 64; i++){
if(board[i] != 'E'){
res = res + (double)wages[(int)board[i]] + tileWages[(int)board[i]][i/8][i%8];
}
}
return res;
}
int counter;
double minmax(int depth, char board[], int fromTile, int whereTile, int fromWhereLegalmoveTab, double alfa, double beta){
if(depth == 0) counter = 0;
char tempFigurePlacement[64];
int tempLegalMoveTab[64] = {0};
int tempTransitionalLegalMoveTab[484] = {0};
for(int i = 0; i < 64; i++) tempFigurePlacement[i] = board[i];
if(depth != 0){
tempLegalMoveTab[whereTile]=fromWhereLegalmoveTab;
moveFigureLogic(fromTile,whereTile,tempLegalMoveTab,tempFigurePlacement);
}
if(depth == DEPTH)
return evaluateBoard(tempFigurePlacement);
int indexWhere = 0;
int indexFrom = 0;
if(depth%2 == 0){
double best = -100000.0;
if(depth != 0)
roundCounter++;
for(int i = 0; i < 64; i++){
if(getFigureSide(i, tempFigurePlacement) == 'B'){
for(int i = 0; i < 484; i++) tempTransitionalLegalMoveTab[i] = 0;
for(int i = 0; i < 64; i++) tempLegalMoveTab[i] = 0;
setLegalMoves(i, tempLegalMoveTab, tempTransitionalLegalMoveTab, tempFigurePlacement);
checkMoveCheckLegality(i, tempLegalMoveTab, tempFigurePlacement);
for(int j = 0; j < 64; j++){
if(tempLegalMoveTab[j] != 0){
double val = minmax(depth+1, tempFigurePlacement, i, j, tempLegalMoveTab[j], alfa, beta);
counter++;
// if (depth == 0) printf("%d %d %fl\n",i,j,val);
if(val > best || (indexFrom==indexWhere && val == best)){
best = val;
indexWhere = j;
indexFrom = i;
}
if(best>alfa)
alfa = best;
if(beta <= alfa)
if(depth != 0){
roundCounter--;
return best;
}
}
}
}
}
if(depth != 0){
roundCounter--;
return best;
}
}else{
double best = 100000.0;
roundCounter++;
for(int i = 0; i < 64; i++){
if(getFigureSide(i, tempFigurePlacement) == 'W'){
for(int i = 0; i < 484; i++) tempTransitionalLegalMoveTab[i] = 0;
for(int i = 0; i < 64; i++) tempLegalMoveTab[i] = 0;
setLegalMoves(i, tempLegalMoveTab, tempTransitionalLegalMoveTab, tempFigurePlacement);
checkMoveCheckLegality(i, tempLegalMoveTab, tempFigurePlacement);
for(int j = 0; j < 64; j++){
if(tempLegalMoveTab[j] != 0){
double val = minmax(depth+1, tempFigurePlacement, i, j, tempLegalMoveTab[j] , alfa, beta);
counter++;
if(val < best || (indexFrom==indexWhere && val == best)){
best = val;
indexWhere = j;
indexFrom = i;
}
if(best<beta)
beta = best;
if(beta <= alfa)
if(depth != 0){
roundCounter--;
return best;
}
}
}
}
}
if(depth != 0){
roundCounter--;
return best;
}
}
if(depth == 0){
resetLegalMoveTables(globalTransitionalLegalMoveTab, globalFinalLegalMoveTab);
setLegalMoves(indexFrom, globalFinalLegalMoveTab, globalTransitionalLegalMoveTab, globalFigurePlacement);
checkMoveCheckLegality(indexFrom, globalFinalLegalMoveTab, globalFigurePlacement);
printf("%d Loaded options\n", counter);
loadBools();
// printf("%d %d\n", indexFrom, indexWhere);
moveFigureLogic(indexFrom, indexWhere, globalFinalLegalMoveTab, globalFigurePlacement);
iFrom = indexFrom;
iWhere = indexWhere;
lastMoveOrigin = indexFrom;
roundCounter++;
isGameOver();
}
return -1;
}