/**
* @param Block $block
* @param Vector3 $pos
* @param Level $level
*
* @return bool
*/
public function saveUndo(Block $block, Vector3 $pos = null, Level $level = null)
{
if ($pos instanceof Position && $pos->getLevel() !== null) {
$block->level = $pos->getLevel();
} elseif ($level !== null) {
$block->level = $level;
} elseif ($block->getLevel() === null) {
return false;
}
if ($pos !== null) {
$block->setComponents($pos->x, $pos->y, $pos->z);
}
$key = "{$block->x}:{$block->y}:{$block->z}";
if (!isset(self::$undo[$key])) {
self::$undo[$key] = [];
}
self::$undo[$key][] = $block;
return true;
}
