Solved Must be int, Null returned?

To be very honest, I have no idea what to do.

Code:

CRITICAL TypeError: "Argument 1 passed to minijaham\CE\Util\Facing::opposite() must be of the type int, null given, called in /plugins/CustomEnchants/src/minijaham/CE/EventListener.php on line 54" (EXCEPTION) in "plugins/CustomEnchants/src/minijaham/CE/Util/Facing" at line 73 21.12 23:47:32 [Server] CRITICAL #0 plugins/CustomEnchants/src/minijaham/CE/EventListener(54): minijaham\CE\Util\Facing::opposite(NULL ) 21.12 23:47:32 [Server] CRITICAL #1 src/pocketmine/plugin/MethodEventExecutor(42): minijaham\CE\EventListener->onDriller(object pocketmine\event\block\BlockBreakEvent) 21.12 23:47:32 [Server] CRITICAL #2 src/pocketmine/plugin/RegisteredListener(80): pocketmine\plugin\MethodEventExecutor->execute(object minijaham\CE\EventListener, object pocketmine\event\block\BlockBreakEvent)

Code:

PHP:


public function onBreak(BlockBreakEvent $event){
        $player = $event->getPlayer();
        if($player->getInventory()->getItemInHand()->getEnchantment(121)){
            $breakFace = self::$lastBreakFace[$player->getName()];
            for ($i = 0; $i <= 1; $i++) {
                $block = $event->getBlock()->getSide(Facing::opposite($breakFace), $i); // Line 54
                $faceLeft = Facing::rotate($breakFace, Facing::axis($breakFace) !== Facing::AXIS_Y ? Facing::AXIS_Y : Facing::AXIS_X, true);
                $faceUp = Facing::rotate($breakFace, Facing::axis($breakFace) !== Facing::AXIS_Z ? Facing::AXIS_Z : Facing::AXIS_X, true);
                foreach ([
                             $block->getSide($faceLeft), //Center Left
                             $block->getSide(Facing::opposite($faceLeft)), //Center Right
                             $block->getSide($faceUp), //Center Top
                             $block->getSide(Facing::opposite($faceUp)), //Center Bottom
                             $block->getSide($faceUp)->getSide($faceLeft), //Top Left
                             $block->getSide($faceUp)->getSide(Facing::opposite($faceLeft)), //Top Right
                             $block->getSide(Facing::opposite($faceUp))->getSide($faceLeft), //Bottom Left
                             $block->getSide(Facing::opposite($faceUp))->getSide(Facing::opposite($faceLeft)) //Bottom Right
                         ] as $b) {
                    $player->getLevel()->useBreakOn($b, $item, $player, true);
                }
                if (!$block->equals($event->getBlock())) {
                    $player->getLevel()->useBreakOn($block, $item, $player, true);
                }
            }
        }
    }


Class Facing

PHP:


class Facing
{
public const AXIS_Y = 0;
public const AXIS_Z = 1;
public const AXIS_X = 2;

public const FLAG_AXIS_POSITIVE = 1;

/* most significant 2 bits = axis, least significant bit = is positive direction */
public const DOWN = self::AXIS_Y << 1;
public const UP = (self::AXIS_Y << 1) | self::FLAG_AXIS_POSITIVE;
public const NORTH = self::AXIS_Z << 1;
public const SOUTH = (self::AXIS_Z << 1) | self::FLAG_AXIS_POSITIVE;
public const WEST = self::AXIS_X << 1;
public const EAST = (self::AXIS_X << 1) | self::FLAG_AXIS_POSITIVE;

public const ALL = [
self::DOWN,
self::UP,
self::NORTH,
self::SOUTH,
self::WEST,
self::EAST
];

public const HORIZONTAL = [
self::NORTH,
self::SOUTH,
self::WEST,
self::EAST
];

private const CLOCKWISE = [
self::AXIS_Y => [
self::NORTH => self::EAST,
self::EAST => self::SOUTH,
self::SOUTH => self::WEST,
self::WEST => self::NORTH
],
self::AXIS_Z => [
self::UP => self::EAST,
self::EAST => self::DOWN,
self::DOWN => self::WEST,
self::WEST => self::UP
],
self::AXIS_X => [
self::UP => self::NORTH,
self::NORTH => self::DOWN,
self::DOWN => self::SOUTH,
self::SOUTH => self::UP
]
];

public static function axis(int $direction): int
{
return $direction >> 1; //shift off positive/negative bit
}

public static function isPositive(int $direction): bool
{
return ($direction & self::FLAG_AXIS_POSITIVE) === self::FLAG_AXIS_POSITIVE;
}

public static function opposite(int $direction): int // line 73
{
return $direction ^ self::FLAG_AXIS_POSITIVE;
}

Why is this returning null?

 

PHP:

self::$lastBreakFace[$player->getName()]

is saved as null. Check how you are saving it.

 

I've actually solved the issue, but forgot to change the prefix. Thanks for replying though!