void gen_move::generate_move(const board& b, int side, location_list& valid_moves)
{
location_list::location m ;
for(m.y = 0 ; m.y < 8 ; m.y++) {
for(m.x = 0 ; m.x < 8 ; m.x++) {
if(b.get_at(m) == board::EMPTY && b.check_move_at(m, side)) {
valid_moves.insert(m) ;
}
}
}
}
int evaluate::count_move(const board& b, int side)
{
int count = 0 ;
location_list::location m ;
for(m.y = 0 ; m.y < 8 ; m.y++) {
for(m.x = 0 ; m.x < 8 ; m.x++) {
if(b.get_at(m) == board::EMPTY && b.check_move_at(m, side)) {
count++ ;
}
}
}
return count ;
}
evaluate::score evaluate::corner(const board& b, int turn) {
location_list::location m ;
int count ;
int c[4] ;
int d ;
int ch1, ch2 ;
score s ;
s = 0 ;
count = 0 ;
for(m.y = 0 ; m.y < 8 ; m.y+=7) {
for(m.x = 0 ; m.x < 8 ; m.x+=7) {
if((c[count] = b.get_at(m)) == side) {
s += 20 ;
} else if(c[count] == (side+1) % 2) {
s -= 25 ;
} else {
ch1 = b.check_move_at(m, side) ;
ch2 = b.check_move_at(m, (side+1)%2) ;
if(ch1 && (turn == side || (!ch2))) {
s += 20 ;
} else if(ch2 && (turn != side || (!ch1))) {
s -= 25 ;
}
c[count] = -1 ;
}
count++ ;
}
}
if(c[0] == -1) {
m.x = 1 ;
m.y = 1 ;
if((d = b.get_at(m)) == side) {
s -= 25 ;
} else if(d == (side + 1) % 2) {
s += 20 ;
}
}
if(c[1] == -1) {
m.x = 1 ;
m.y = 6 ;
if((d = b.get_at(m)) == side) {
s -= 25 ;
} else if(d == (side + 1) % 2) {
s += 20 ;
}
}
if(c[2] == -1) {
m.x = 6 ;
m.y = 1 ;
if((d = b.get_at(m)) == side) {
s -= 25 ;
} else if(d == (side + 1) % 2) {
s += 20 ;
}
}
if(c[3] == -1) {
m.x = 6 ;
m.y = 6 ;
if((d = b.get_at(m)) == side) {
s -= 25 ;
} else if(d == (side + 1) % 2) {
s += 20 ;
}
}
return s ;
}