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<?php
namespace MeadSteve\DiceApi\Dice;
use MeadSteve\DiceApi\BasicDice;
use MeadSteve\DiceApi\Dice;
class DiceGenerator
{
public function diceFromUrlString($urlString)
$parts = explode("/", $urlString);
$diceSets = array_map([$this, 'getDiceForPart'], $parts);
return $this->flattenDiceSets($diceSets);
}
/**
* @param string $part
* @return Dice[]
*/
private function getDiceForPart($part)
$newDice = [];
$data = $this->parseDiceString($part);
if ($data) {
if ((strlen($data["size"]) > 4) || ($data["size"] > 9000)) {
throw new UncreatableDiceException("Only dice with a power level less than 9000 can be created.");
for ($i = 0; $i < $data["count"]; $i++) {
$newDice[] = $this->newDiceOfSize($data["size"]);
return $newDice;
* @param $size
* @return Dice
private function newDiceOfSize($size)
if ($size == 0) {
return new ZeropointDice();
return new BasicDice($size);
* @param array[]
* @return array
private function flattenDiceSets($diceSets)
$dice = [];
foreach ($diceSets as $set) {
$dice = array_merge($dice, $set);
return $dice;
* @return array|null
private function parseDiceString($part)
$data = [];
$valid = preg_match("/(?P<count>[0-9]+)?d(?P<size>[0-9]+)/i", $part, $data);
if (!$valid) {
return null;
if (!$data["count"]) {
$data["count"] = 1;
return $data;
meadsteve /
DiceApi
