159 lines
4.6 KiB
PHP
159 lines
4.6 KiB
PHP
<?php
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include_once "dico.php";
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class Grille implements Iterator, ArrayAccess {
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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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public $lignes;
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public $colonnes;
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public function __construct($hauteur, $largeur, $id = "")
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{
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$this->hauteur = $hauteur;
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$this->largeur = $largeur;
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$this->grille = array_fill(0, $hauteur, array_fill(0, $largeur, ''));
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$this->lignes = [];
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$this->colonnes = [];
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$this->lettres_suivantes = tries(max($hauteur, $largeur));
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$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, $y];
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}
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$this->nb_positions = count($this->positions);
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mt_srand($id == "" ? null : crc32($id));
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$this->grilles = $this->gen_grilles();
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}
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public function get_ligne($y, $largeur)
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{
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$ligne = "";
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for ($x = 0; $x < $largeur; $x++)
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$ligne .= $this->grille[$y][$x];
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return $ligne;
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}
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public function get_colonne($x, $hauteur)
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{
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$colonne = "";
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for ($y = 0; $y < $hauteur; $y++)
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$colonne .= $this->grille[$y][$x];
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return $colonne;
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}
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public function gen_grilles($i = 0, $lettres_suivantes_ligne = NULL)
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{
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if ($i == $this->nb_positions) {
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yield $this;
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return;
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}
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[$x, $y] = $this->positions[$i];
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if ($x == 0) {
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$lettres_suivantes_ligne = $this->lettres_suivantes[$this->largeur];
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}
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$lettres_suivantes_colonne = $this->lettres_suivantes[$this->hauteur];
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for ($y2 = 0; $y2 < $y; $y2++)
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$lettres_suivantes_colonne = $lettres_suivantes_colonne->noeud[$this->grille[$y2][$x]];
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$lettres_communes = array_intersect(
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array_keys($lettres_suivantes_ligne->noeud),
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array_keys($lettres_suivantes_colonne->noeud)
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);
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usort($lettres_communes, function ($a, $b) {
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return mt_rand(-1, 1);
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});
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foreach ($lettres_communes as $lettre) {
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$this->grille[$y][$x] = $lettre;
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$mots = [];
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if ($x == $this->largeur - 1) $mots = explode(" ", $this->get_ligne($y, $this->largeur));
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else if ($lettre == " ") $mots = explode(" ", $this->get_ligne($y, $x));
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else $mots = [];
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$this->lignes[$y] = array_filter($mots, function($mot) {
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return strlen($mot) >= 2;
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});
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if (count($this->lignes[$y])) {
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$mot = array_pop($this->lignes[$y]);
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if (strlen($mot > 2) && in_array($mot, array_merge(...$this->lignes, ...$this->colonnes))) continue;
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else $this->lignes[$y][] = $mot;
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}
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if ($y == $this->hauteur - 1) {
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$mots = explode(" ", $this->get_colonne($x, $this->hauteur));
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foreach ($mots as $rang => $mot) {
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if (strlen($mot) < 2) continue;
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if (strlen($mot > 2) && in_array($mot, array_merge(...$this->lignes, ...$this->colonnes))) continue 2;
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else $this->colonnes[$x][$rang] = $mot;
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}
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} else {
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$this->colonnes[$x] = [];
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}
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if ($i < $this->nb_positions) {
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yield from $this->gen_grilles($i + 1, $lettres_suivantes_ligne->noeud[$lettre]);
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} else {
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yield $this;
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}
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}
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}
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public function hash()
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{
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$string = "";
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foreach ($this->grille as $ligne)
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$string .= implode("", $ligne);
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return hash('sha256', $string);
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}
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public function current(): mixed
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{
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return $this->grilles->current();
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}
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public function key(): mixed {
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return $this->grilles->key();
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}
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public function next(): void {
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$this->grilles->next();
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}
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public function rewind(): void {
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$this->grilles->rewind();
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}
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public function valid(): bool
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{
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return $this->grilles->valid();
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}
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public function offsetExists(mixed $offset): bool {
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return isset($this->grille[$offset]);
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}
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public function offsetGet(mixed $offset): mixed {
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return $this->grille[$offset];
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}
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public function offsetSet(mixed $offset, mixed $value): void {
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$this->grille[$offset] = $value;
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}
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public function offsetUnset(mixed $offset): void {
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unset($this->grille[$offset]);
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}
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}
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