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tools.c
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tools.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* tools.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ybouddou <ybouddou@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/06/25 13:05:56 by ybouddou #+# #+# */
/* Updated: 2021/07/02 14:55:26 by ybouddou ### ########.fr */
/* */
/* ************************************************************************** */
#include "sudoku.h"
int if_solved(t_sudo *sudo)
{
int x;
int y;
y = -1;
while (++y < 9)
{
x = -1;
while (++x < 9)
{
if (sudo->grid[y][x] != sudo->solved[y][x])
return (0);
}
}
return (1);
}
void err_msg(t_sudo *sudo, char *msg)
{
write(1, "\033[1A\r\033[K", 8);
ft_putstr_fd("\e[0;31m", 1);
ft_putstr_fd(msg, 1);
ft_putstr_fd("\e[0m", 1);
sleep(2);
sudo->grids = 24;
write(1, "\r\033[K", 8);
}
int check_if_break(t_sudo *sudo, int x, int y, int num)
{
int cell;
cell = which_cell(x, y);
if (((sudo->row[y] >> (num - 1)) & 1) || ((sudo->col[x] >> (num - 1)) & 1)
|| ((sudo->cell[cell] >> (num - 1)) & 1))
return (1);
sudo->row[y] = (1 << (num - 1)) | sudo->row[y];
sudo->col[x] = (1 << (num - 1)) | sudo->col[x];
sudo->cell[cell] = (1 << (num - 1)) | sudo->cell[cell];
return (0);
}
int which_cell(int x, int y)
{
int cell;
cell = 0;
if (!(y / 3))
cell = (x / 3);
else if ((y / 3) == 1)
cell = (x / 3) + 3;
else if ((y / 3) == 2)
cell = (x / 3) + 6;
return (cell);
}
int set_bits(int cell)
{
int i;
int c;
c = 0;
i = -1;
while (++i < 9)
{
if ((1 << i) & cell)
c++;
}
return (c);
}
int check_shuffled(t_sudo *sudo, int x, int with)
{
int cell;
cell = which_cell(x, 0) + which_cell(with, 0);
if (((sudo->cell_shuffle[cell] >> (cell)) & 1) || ((sudo->shuffled[x] >> (x)) & 1))
return (1);
sudo->shuffled[x] = (1 << x) | sudo->shuffled[x];
// sudo->shuffled[with] = (1 << with) | sudo->shuffled[with];
sudo->cell_shuffle[cell] = (1 << (cell)) | sudo->cell_shuffle[cell];
return (0);
}
int start_subgrid(int x)
{
int start;
start = x / 3;
if (start == 1)
start += 2;
else if (start == 2)
start += 4;
return (start);
}
void shuffle(t_sudo *sudo)
{
int i;
int x;
int y;
int with;
int tmp;
int y_end;
int x_end;
srand(time(0));
i = rand() % (3 - 2 + 1) + 2;
// printf("i : %d\n\n", i);
while (i--)
{
do
{
x = rand() % 8;
with = x + 3;
with = with > 8 ? (with - 9) : with;
} while (check_shuffled(sudo, x, with));
// printf("x : %d | with : %d\n", x, with);
y = -1;
while (++y < 9)
{
tmp = sudo->solved[y][x];
sudo->solved[y][x] = sudo->solved[y][with];
sudo->solved[y][with] = tmp;
}
// printf("-----------------------\n");
}
y = rand() % 8;
with = y + 3;
with = with > 8 ? (with - 9) : with;
// printf("y : %d | with : %d\n", y, with);
y = start_subgrid(y);
with = start_subgrid(with);
// printf("y : %d | with : %d\n", y, with);
y_end = y + 3;
while (y < y_end)
{
x = -1;
while (++x < 9)
{
tmp = sudo->solved[y][x];
sudo->solved[y][x] = sudo->solved[with][x];
sudo->solved[with][x] = tmp;
}
y++;
with++;
}
x = rand() % 8;
with = x + 3;
with = with > 8 ? (with - 9) : with;
// printf("x : %d | with : %d\n", x, with);
x = start_subgrid(x);
with = start_subgrid(with);
// printf("x : %d | with : %d\n", x, with);
x_end = x + 3;
while (x < x_end)
{
y = -1;
while (++y < 9)
{
tmp = sudo->solved[y][x];
sudo->solved[y][x] = sudo->solved[y][with];
sudo->solved[y][with] = tmp;
}
x++;
with++;
}
}
void fill_grid(t_sudo *sudo)
{
int x;
int y;
y = -1;
while (++y < 9)
{
x = -1;
while (++x < 9)
sudo->grid[y][x] = sudo->solved[y][x];
}
}
void prev(int *x, int *y)
{
if (!*x && *y)
{
(*y)--;
*x = 8;
}
else
(*x)--;
}