149 lines
4.0 KiB
C
149 lines
4.0 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* search_map.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: hulamy <hulamy@student.42.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2019/04/27 20:47:22 by hulamy #+# #+# */
|
|
/* Updated: 2019/05/06 16:25:03 by hulamy ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "fillit.h"
|
|
|
|
/*
|
|
** function that look for the first place in the map for a tetri
|
|
*/
|
|
|
|
int find_place(unsigned int *tab, t_fillist *list, int size, int pos)
|
|
{
|
|
int i;
|
|
int j;
|
|
unsigned int mask;
|
|
unsigned int tmp;
|
|
|
|
// creer un mask avec les size bits de gauche a 1 (ex: 11111110000000000000000000000000)
|
|
mask = ~0u << (32 - list->width);
|
|
tmp = mask;
|
|
i = pos;
|
|
// boucle jusqu'a la dernier place pour le tetri dans la map ou qu'il fit dans un trou
|
|
while (i < (size - list->height + 1) * size)
|
|
{
|
|
tmp = 0;
|
|
// construit un tmp qui est une photo de la map de la taille du tetri a un emplacement donne
|
|
j = (list->height - 1) * size + i;
|
|
while (j >= i)
|
|
{
|
|
tmp >>= list->width;
|
|
tmp |= (mask & (tab[j / 32] << j));
|
|
tmp |= (mask & (tab[(j + list->width) / 32] >> (32 - j)));
|
|
j -= size;
|
|
}
|
|
if (!((tmp >> 16) & list->tetribit))
|
|
return (i + 1);
|
|
// pour ne pas deborder a droite de la map
|
|
if (i % size == size - list->width + 1)
|
|
i += list->width - 1;
|
|
i++;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
** function that add or remove a tetri on the map
|
|
*/
|
|
|
|
void add_remove(unsigned int *map, t_fillist *list, int size, int pos)
|
|
{
|
|
unsigned int mask;
|
|
unsigned short tetri;
|
|
int i;
|
|
int j;
|
|
|
|
tetri = list->tetribit;
|
|
mask = ~0u << (32 - list->width);
|
|
i = (list->height - 1) * list->width;
|
|
j = (list->height - 1) * size + pos;
|
|
// change les bits du tetri sur la map a la position donnee
|
|
while (j >= pos)
|
|
{
|
|
map[j / 32] ^= (mask & tetri << (16 + i)) >> (j - 1);
|
|
map[(j + size) / 32] ^= (mask & tetri << (16 + i)) << (j % 32 + 1);
|
|
j -= size;
|
|
i -= list->width;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** function that recursively try to fill the map with the tetris
|
|
*/
|
|
|
|
int fill_map(unsigned int *map, t_fillist *list, int size, t_fillist *link)
|
|
{
|
|
int pos;
|
|
|
|
pos = 0;
|
|
if (!list)
|
|
return (1);
|
|
while ((pos = find_place(map, list, size, pos)))
|
|
{
|
|
add_remove(map, list, size, pos);
|
|
list->position = pos;
|
|
print_final_map(link, size); // DEBUG tente imprime la map avec des lettres
|
|
print_map(map, size, size, '#'); // DEBUG
|
|
ft_putchar('\n'); // DEBUG
|
|
if (fill_map(map, list->next, size, link))
|
|
return (1);
|
|
add_remove(map, list, size, pos);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
** function that init the map to the right size fill with int equal to zeros
|
|
*/
|
|
|
|
unsigned int *init_map(int i)
|
|
{
|
|
unsigned int *new;
|
|
int size;
|
|
|
|
size = (i * i) / 32 + 1;
|
|
new = (unsigned int *)malloc(sizeof(*new) * size);
|
|
while (size)
|
|
new[size--] = 0;
|
|
return (new);
|
|
}
|
|
|
|
/*
|
|
** function that send to "fill_map" a map of a certain size and increment its size untill it's solved
|
|
*/
|
|
|
|
void search_map(t_fillist *list)
|
|
{
|
|
t_fillist *tmp;
|
|
|
|
unsigned int *map;
|
|
int size;
|
|
int i;
|
|
|
|
size = 2;
|
|
i = 1;
|
|
tmp = list;
|
|
// trouve le nombre de tetri en parcourant la liste chainee
|
|
while ((tmp = tmp->next))
|
|
i++;
|
|
// trouve la taille minimale de la map
|
|
while (size * size < i * 4)
|
|
size++;
|
|
map = init_map(size);
|
|
|
|
// lance la recursive fill_map en augmentant la taille de la map tant qu'il n'y a pas de solution
|
|
while (!fill_map(map, list, size, list))
|
|
map = init_map(size++);
|
|
print_final_map(list, size); // DEBUG
|
|
ft_putchar('\n'); // DEBUG
|
|
print_map(map, size, size, '#');
|
|
}
|