private function slideForwards()
{
/** @var Block $next */
if (count($this->forwardRecords) === 0) {
$this->blockStream->next();
if (!$this->blockStream->valid()) {
return false;
}
$next = $this->blockStream->current();
if ($this->queue->getOwner()->getConfig()->safeModeOn) {
$zones = $this->queue->getOwner()->getMain()->getDataProvider()->getZones($next);
foreach ($zones as $zone) {
if ($zone->getType() === Zone::TYPE_UNDER_CONSTRUCTION) {
$ok = true;
break;
}
}
if (!isset($ok)) {
$this->blocksOutOfBounds++;
return true;
}
}
} else {
$next = array_shift($this->forwardRecords);
}
$original = $next->getLevel()->getBlock($next);
$next->getLevel()->setBlock($next, $next, false, false);
array_unshift($this->behindRecords, $original);
return true;
}
