Sha256: a811612cbbcd795aaba7a9e910a83b0e37a289688f992d2fd3a71a262d99111f
Contents?: true
Size: 1.62 KB
Versions: 367
Compression:
Stored size: 1.62 KB
Contents
<?php
class Robot
{
private $name;
public function __construct()
{
$this->reset();
}
/**
* Get Robot name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Reset name
*/
public function reset()
{
$this->name = NamesRegistry::connect()->getNewName();
}
}
class NamesRegistry
{
private $names = [];
private static $letters;
private static $registry;
private function __construct()
{
}
/**
* Get NamesRegistry singleton
*
* @return NamesRegistry
*/
public static function connect()
{
if (empty(self::$registry)) {
self::$registry = new NamesRegistry();
self::$letters = range('A', 'Z');
}
return self::$registry;
}
/**
* Get new unique robot name
*
* @todo Names rotation not implemented. Task requires all robots
* to have unique names even if there are obsolete names.
* @todo If there are plans to use Robot::reset() more than at least 200-300k times,
* it should be better to generate the full list of possible names at __construct
* and randomly reduce it on demand.
* @todo No fallback in case of over 676000 names.
*
* @return string New Robot name *
*/
public function getNewName()
{
do {
shuffle(self::$letters);
$name = self::$letters[0] . self::$letters[1] . sprintf('%03d', mt_rand(0, 999));
} while (!empty($this->names[$name]));
$this->names[$name] = true;
return $name;
}
}
Version data entries
367 entries across 367 versions & 1 rubygems