129 lines
3.7 KiB
PHP
129 lines
3.7 KiB
PHP
<?php
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include_once "dico.php";
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class Grille {
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public $grille;
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public $hauteur;
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public $largeur;
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private $grilles;
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private $lettres_suivantes;
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private $positions;
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private $nb_positions;
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private $mots_utilises = [];
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public function __construct($hauteur, $largeur, $id="") {
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$this->hauteur = $hauteur;
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$this->largeur = $largeur;
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$this->grille = array_fill(0, $hauteur, array_fill(0, $largeur, ''));
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if ($id == "") {
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mt_srand();
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} else {
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mt_srand(crc32($id));
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}
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$this->lettres_suivantes = [];
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foreach ($hauteur == $largeur? [$hauteur]: [$hauteur, $largeur] as $longueur) {
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$this->lettres_suivantes[$longueur] = [];
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foreach(mots_espaces($longueur) as $mot) {
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for ($i = 0; $i <= $longueur; $i++) {
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$debut = substr($mot, 0, $i);
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if (!isset($this->lettres_suivantes[$longueur][$debut])) {
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$this->lettres_suivantes[$longueur][$debut] = [];
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}
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$this->lettres_suivantes[$longueur][$debut][substr($mot, $i, 1)] = true;
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}
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}
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}
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mt_srand();
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$this->positions = [];
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for ($y = 0; $y < $hauteur; $y++) {
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for ($x = 0; $x < $largeur; $x++) {
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$this->positions[] = [$x, $y];
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}
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}
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$this->nb_positions = count($this->positions);
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$this->grilles = $this->generateur();
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}
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public function get_ligne($y, $largeur) {
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$ligne = "";
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for ($x = 0; $x < $largeur; $x++) {
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$ligne .= $this->grille[$y][$x];
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}
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return $ligne;
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}
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public function get_colonne($x, $hauteur) {
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$colonne = "";
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for ($y = 0; $y < $hauteur; $y++) {
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$colonne .= $this->grille[$y][$x];
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}
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return $colonne;
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}
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public function generateur($index=0) {
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if ($index == $this->nb_positions) {
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yield $this;
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return;
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}
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[$x, $y] = $this->positions[$index];
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$lettres_possibles = array_intersect_assoc(
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$this->lettres_suivantes[$this->largeur][$this->get_ligne($y, $x)],
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$this->lettres_suivantes[$this->hauteur][$this->get_colonne($x, $y)]
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);
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foreach ($lettres_possibles as $lettre => $_) {
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$this->grille[$y][$x] = $lettre;
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$mot_ligne = NULL;
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if ($x == $this->largeur - 1) {
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$mot_ligne = $this->get_ligne($y, $x);
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if (isset($this->mots_utilises[$mot_ligne])) {
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continue;
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} else {
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$this-> mots_utilises[$mot_ligne] = true;
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}
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}
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$mot_colonne = NULL;
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if ($y == $this->hauteur - 1) {
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$mot_colonne = $this->get_colonne($x, $y);
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if (isset($this->mots_utilises[$mot_colonne])) {
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continue;
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} else {
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$this-> mots_utilises[$mot_colonne] = true;
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}
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}
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yield from $this->generateur($index + 1);
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if ($mot_ligne) {
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unset($this-> mots_utilises[$mot_ligne]);
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}
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if ($mot_colonne) {
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unset($this-> mots_utilises[$mot_colonne]);
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}
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}
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}
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public function current() {
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return $this->grilles->current();
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}
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public function valid() {
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return $this->grilles->valid();
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}
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public function hash() {
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$string = "";
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foreach ($this->grille as $ligne) {
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$string .= implode("", $ligne);
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}
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return hash('sha256', $string);
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}
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} |