Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 12 Next capture
2021 2022 2023
1 capture
12 Jun 22 - 12 Jun 22
sparklines
Close Help
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
  • Help Room /
avatar image
0
Question by xyHeat · Aug 13, 2016 at 10:00 AM · c#gameobjecttagdontdestroyonload

DontDestroyOnLoad() and GameObject.FindGameObjectWithTag() [C#]

Hey everybody ! I have an issue with DontDestroyOnLoad : In the First Scene, the payer have the possibility to enter in a battle, which take place in an other scene. In order to save all mobs in the battle and some other things, I use a GameObject with this code :

     public string currentPlayerScene;
 
     public float xPlayerPos;
     public float yPlayerPos;
 
     public List<GameObject> allAllies;
     public List<GameObject> allEnemies;
 
     void Awake()
     {
         DontDestroyOnLoad(transform.gameObject);
     }


When the BattleScene is loaded, i have a script, named "BattleManager". In this code, there is a public GameObject for the DontDestroyOnLoad GameObject which is assigned by "GameObject.FindGameObjectWithTag("BattleSettings)" in the Start method.

The problem is : the variable isn't assigned, so all the other methods can't be used.

This is the Start Method of "BattleManager" :

 void start()
     {
         enterBattleSettings = GameObject.FindGameObjectWithTag("BattleSettings");
 
         currentPlayerScene = enterBattleSettings.GetComponent<BattleSettings>().currentPlayerScene;
 
         xPlayerPos = -10;
         yPlayerPos = 10;
 
         allAllies = enterBattleSettings.GetComponent<BattleSettings>().allAllies;
         allEnemies = enterBattleSettings.GetComponent<BattleSettings>().allEnemies;
 
         EnterBattle(enterBattleSettings.GetComponent<BattleSettings>().allAllies, enterBattleSettings.GetComponent<BattleSettings>().allEnemies);
     }


Thank you !

Bye, xyHeat

Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

1 Reply

· Add your reply
  • Sort: 
avatar image
0
Best Answer

Answer by xyHeat · Aug 13, 2016 at 10:52 AM

Hey, I found something : I replace the Start method by a OnLevelWasLoaded() method. It seem work.

Bye, xyHeat

Comment
Add comment · Show 2 · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image DrishtiS · Jul 28, 2017 at 10:16 AM 0
Share

I have the same problem and I saved my gameObject in a variable and when i use that variable, it shows Null Reference exception. I don't know how to solve it.

avatar image DrishtiS DrishtiS · Jul 31, 2017 at 09:19 AM 0
Share

$$anonymous$$y query got solved. DontDestroyOnLoad() only works for root object. $$anonymous$$y GameObject was the child and hence I was not able to access it in OnLevelWasLoaded().

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Follow this Question

Answers Answers and Comments

208 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Instantiate as child for gameobjects with tag 1 Answer

how to disable dontdestroyonload on a specific scene 2 Answers

Destroyed instance of Prefab, can't spawn it back. 1 Answer

How to put ".transform" after "GameObject.FindGameObjectsWithTag()" 1 Answer

"Field " " is never assigned to, and will always have it's default value null" 2 Answers


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges