onRun with setBlock

Discussion in 'Development' started by esh123cookie, Jun 24, 2020.

  1. esh123cookie

    esh123cookie Witch

    Messages:
    53
    GitHub:
    esh123cookie
    $level = $this->getPlugin()->getServer()->getLevelByName("test");
    $pos = new Position(100, 78, 100, $level);
    $dirt = BlockFactory::get(Block:DIRT);
    $air = BlockFactory::get(Block::AIR);
    if($this->getPlugin()->time > 0) {
    $level->setBlock($pos, $dirt, true, true);
    }
    if($this->getPlugin()->time == 0) {
    $level->setBlock($pos, $air, true, true);
    }
    }

    ^^^^^
    My code keeps giving an error "Call to a member function setBlock() on null" how would I fix this?
     
    Last edited: Jun 25, 2020
  2. PJZ9n

    PJZ9n Spider

    Messages:
    14
    GitHub:
    pjz9n
    What is onRun? Anyway, $level is assigned a null instead of a Level object. That means I couldn't get the world. You can either make sure the world name is correct or you can use the Server::loadLevel() function I will.
     
  3. esh123cookie

    esh123cookie Witch

    Messages:
    53
    GitHub:
    esh123cookie
    public function onRun($tick) {
    It is a function.
    Second I get that the code cannot find the world. How do I make it so the code can register it as NonNull?
     
  4. PJZ9n

    PJZ9n Spider

    Messages:
    14
    GitHub:
    pjz9n
    The function name can be freely decided anywhere. I guess I'm using Task, but I'm not sure. Writing it in the question is a better way.
    The solution to this problem is general error handling. You can see that getLevelByName returns Level or null (?Level).
    GitHub(Server.php)
    Check the return value is Level.
    PHP:
    $level $this->getPlugin()->getServer()->getLevelByName("test");
    if (!(
    $level instanceof Level)) {
      
    //error handling...
    }
     
  5. esh123cookie

    esh123cookie Witch

    Messages:
    53
    GitHub:
    esh123cookie
    Okay thank you, let me try that out
     

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