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 SonicDirewolf · Oct 30, 2017 at 06:15 PM · instantiateobjectrandomrandom.range

Calling 2 specific random float numbers in random.range using array not working!

I want my object to instantiate at two specific locations. No in between. But I'm getting an error that it cannot convert type float to int implicitly. Help! Here's my code. Thank You.

public class ObjSpawner : MonoBehaviour {

  public GameObject Obj;    
 
  float[] randompos = new float[] {1f, -0.0254777070063694f}; 
     
     // this big number is a properly calculated number.                             
 
  
  void Start () {
      StartObjSpawn ();
  }
 
  
  void Update () 
  }
 
  public void StartObjSpawn(){
       StartCoroutine("SpawnObj");
  }
 
  public void StopObjSpawn() {
 
      StopCoroutine("SpawnObj");
  }
 
 
  IEnumerator SpawnObj()
  {
      Instantiate(Obj, new Vector3(transform.position.x,transform.position.y)*(randompos[Random.Range(1f,randompos.Length)]), Quaternion.identity);
 
      yield return new WaitForSeconds(Random.Range(1.5f, 2f));
          
      StartCoroutine("SpawnObj");
 
          }
          

}

Comment
Add comment · Show 1
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 TreyH · Oct 30, 2017 at 07:22 PM 0
Share

Change to

 Instantiate(Obj, new Vector3(transform.position.x,transform.position.y)*(randompos[Random.Range(1, randompos.Length)]), Quaternion.identity);
  
 yield return new WaitForSeconds(Random.Range(1, 2));

Random.Range(int, int) requires you to pass integers as its arguments. It then returns a random integer between your first argument (the lower bound) and the upper bound $$anonymous$$us 1.

You are giving it floats, and it is telling you that it will not convert them automatically into integers for you.

2 Replies

· Add your reply
  • Sort: 
avatar image
1
Best Answer

Answer by Legend_Bacon · Oct 30, 2017 at 07:36 PM

Hello there,

As the first argument of your Random.Range() call, you are using 1f, which is a float. What you probably meant to do is (randompos[Random.Range(0, randompos.Length)]), which would give you either 0 or 1, which would correspond to either 1f or -0.0254777070063694f.

Let us know if that fixes it! Best of luck,.

~LegendBacon

Comment
Add comment · Show 1 · 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 SonicDirewolf · Oct 31, 2017 at 03:33 PM 0
Share

This fixes it! Thank you so much!

avatar image
1

Answer by pako · Oct 30, 2017 at 07:57 PM

You're getting the error because randompos.Length returns an integer, and you're using it in Random.Range with the first argument as a float.

Since you want to use the result of Random.Range as the index of an element in randompos array, you should provide two integers in Random.Range. And since the first element of the array is indexed as 0 that's what you should use for the first integer.

So use:

 Instantiate(Obj, new Vector3(transform.position.x,transform.position.y)*(randompos[Random.Range(0,randompos.Length)]), Quaternion.identity);
Comment
Add comment · Show 1 · 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 SonicDirewolf · Oct 31, 2017 at 03:33 PM 0
Share

Thank you for explaining why it went wrong! It's working now!

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

99 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

Related Questions

Instantiate a random prefab at an objects location 3 Answers

Randomly instantiate objects from array without choosing the same item twice. 2 Answers

Instantiate issues 1 Answer

How can I Instantiate and do it in a random spot in a random spot? 2 Answers

Spawning objects at points within another object? 1 Answer


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