• 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 BenKurdziel · Nov 06, 2012 at 03:08 AM · instantiatearrayrandomobjects

How can I Instantiate an Object from a Randomly Selected Index in an Array of Game Objects?

Basically, I have a bunch of Game Objects tagged as "Evidence Locations" and "Evidence".

When the game starts, a script finds all the objects tagged with both of those:

 var tagToSearchFor        : String;
 var evidenceLocationTag    : String;
 
 function Start () {
     var evidenceList : GameObject[];
     evidenceList = GameObject.FindGameObjectsWithTag(tagToSearchFor);        //get all the GO's tagged with the appropriate tag
     var evidenceLocation : GameObject[];
     evidenceLocation = GameObject.FindGameObjectsWithTag(evidenceLocationTag);        //get all the GO's tagged with the appropriate tag
 }
 

then w$$anonymous$$le there is less than a set amount of evidence present, we run a random number to find the type of evidence we use, then again to find the random location it will occur at, then instantiate the evidence from that array that was chosen, and the location, and lastly, increment the amount of evidence present:

     w$$anonymous$$le (evidenceLocLoop <= 10)
     {
         randomEvidence = Random.Range(0, evidenceList.Length);
         randomLocation = Random.Range(0, evidenceLocation.Length);
         
         tempClone = Instantiate(evidenceList[randomEvidence], evidenceLocation[randomLocation], transform.rotation);
         
         
         
         evidenceLocLoop++;
     }

I know t$$anonymous$$s doesn't account for the possibility of reusing a location yet, and that will be handled later, but my question is, what is the syntax, or how can I handle Instantiating the randomly chosen piece of evidence and randomly chosen location correctly?

Currently I get the error, "No appropriate version of 'UnityEngine.Object.Instantiate' for the argument list'(UnityEngine.GameObject, UnityEngine.Quaternion)' was found."

Thanks in advance!

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
1

Answer by Eric5h5 · Nov 06, 2012 at 03:17 AM

Instantiate takes an object, a Vector3, and a quaternion. You can't pass a GameObject, a GameObject, and a quaternion. Perhaps you meant evidenceLocation[randomLocation].transform.position.

Comment
Add comment · 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

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.

Welcome to Unity Answers

If you’re new to Unity Answers, please check our User Guide to help you navigate through our website and refer to our FAQ for more information.

Before posting, make sure to check out our Knowledge Base for commonly asked Unity questions.

Check our Moderator Guidelines if you’re a new moderator and want to work together in an effort to improve Unity Answers and support our users.

Follow this Question

Answers Answers and Comments

11 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

Related Questions

C# Spawn Random Object, at Random 2D Location 2 Answers

How would i use a 2D array for level generation 0 Answers

Puzzle + Grid Instantiate - Random 2 Answers

Instantiate Random Object at Random Position 1 Answer

Unable to randomly instantiate prefab from array 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