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 /
avatar image
0
Question by TvattSvampen · Dec 16, 2018 at 10:17 AM · instantiate2d gamedeleteremoveuntiy

Delete Instantiated object?

Hello im making a game were if i use a card a human summons on an island and i also have a card that removes humans but how do i only remove one clone??

this is my instanciate script:

  if(manager.population < manager.maxPopulation)
         {
             manager.population++;
             print("card 1 used");
             Instantiate(human, humanSpawner);
         }



Here is where i want to remove 1 human:

 if (manager.population > 0)
             {
                 manager.population--;
                 print("Card 2 used");
                 
             }

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
2

Answer by Hellium · Dec 16, 2018 at 10:47 AM

You have to keep a reference to the instantiated object somewhere.

You can use a dynamic set you containing your instantiated object (such as a List). Depending on how the objects must be destroyed, you may be interested by the Stack (last one added is the first one deleted) or the Queue (first one added is the first one deleted).

 private Queue<GameObject> humans = new Queue<GameObject>();

 // ...

 if(manager.population < manager.maxPopulation)
 {
     manager.population++;
     print("card 1 used");
     humans.Enqueue( Instantiate(human, humanSpawner) ) ;
 }

 // ...

 if (manager.population > 0)
 {
     manager.population--;
     print("Card 2 used");
     Destroy( humans.Dequeue() ) ;
 }
Comment
Add comment · Show 6 · 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 TvattSvampen · Dec 16, 2018 at 06:43 PM 0
Share

I get this: InvalidOperationException: Operation is not valid due to the current state of the object

On the Destroy( humans.Dequeue() ) ;

avatar image Hellium TvattSvampen · Dec 16, 2018 at 07:15 PM 0
Share

You may need to check whether the queue contains element before:

 if (manager.population > 0)
  {
      manager.population--;
      print("Card 2 used");
      if( humans.Count > 0 )
          Destroy( humans.Dequeue() ) ;
  }
avatar image TvattSvampen Hellium · Dec 18, 2018 at 07:43 PM 0
Share

The error dissaperared but it wont destroy the objects

Show more comments

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

131 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

Related Questions

Instantiated Particle System seems to only be playing randomly and isn't being destroyed when it finishes. 0 Answers

Instantiate GameObject at Random time is not working 1 Answer

Spawn: Instantiate GameObject 1 Answer

ParticleSystem showing in scene but not in game. 7 Answers

I need one of my prefabs to be deleted after a few seconds 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