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null GameObject

Discussion in 'Scripting' started by Slabada, May 12, 2022.

  1. Slabada

    Slabada

    Joined:
    May 2, 2021
    Posts:
    50
    Hello, tell me, please, I have a Gameobject variable in my code, it is empty, an object will be added there during the game.
    How do I make sure that there is no error due to the fact that Gameobject is empty?
    I searched the Internet, but I didn't find any clear information for myself.
     
    Slabada, May 12, 2022
    #1

  2. PraetorBlue

    PraetorBlue

    Joined:
    Dec 13, 2012
    Posts:
    7,722
    Make sure the variable is not null before doing something with it:
    Code (CSharp):
    1. if (myVariable != null) {
    2.   // Do stuff with myVariable here.
    3. }
     
    PraetorBlue, May 12, 2022
    #2
    Bunny83, Slabada and Kurt-Dekker like this.

  3. Akuramuzda

    Akuramuzda

    Joined:
    Apr 26, 2021
    Posts:
    5
    Use the implicit conversion UnityEngine.Object to bool.
    Code (CSharp):
    1. if (obj) // obj must be a class derived from UnityEngine.Object
    2. {
    3.     // the object exists.
    4. }
     
    Akuramuzda, May 12, 2022
    #3
    Bunny83, Slabada and PraetorBlue like this.

  4. Slabada

    Slabada

    Joined:
    May 2, 2021
    Posts:
    50
    Thank you all for your help :)
     
    Slabada, May 12, 2022
    #4