/**
* Gets a winning variant.
*
* @param $salt string
* @return mixed
*/
public function getVariant($salt)
{
// No chance of winning
if ($this->oddsTotal == 0) {
return null;
}
// First variant is a sure winner
if (reset($this->variants) >= 100) {
return (string) key($this->variants);
}
// Time to roll
$roll = $this->roller->getRoll($salt);
foreach ($this->variants as $variant => $odds) {
if ($roll < $odds) {
return (string) $variant;
}
}
// Loser
return null;
}
