• 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
1
Question by Paulsnijder · Sep 06, 2016 at 01:30 PM · lerpfloatintincreasespeed issues

How can I change the value of a Float smoothly?

Its might be kinda a silly, but I can't seem to get it to work. What I want is for my float to go to its new value over time, check:

 var Speed : float = 0;
 
 function Called(){
 
 Speed  = 100; 
 
 //I would like this to happen smoothly, however, I would also like to change back to say 40 if I call it later.
 
 yield WaitForSeconds(2);
 Speed = 40;
 
 // So the first time its changed from 0 tot 100, and the second time from 100, 40, how can I make this smooooothhh?
 }

Thanks!

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

2 Replies

· Add your reply
  • Sort: 
avatar image
8

Answer by doublemax · Sep 06, 2016 at 02:32 PM

   IEnumerator ChangeSpeed( float v_start, float v_end, float duration )
   {
     float elapsed = 0.0f;
     while (elapsed < duration )
     {
       speed = Mathf.Lerp( v_start, v_end, elapsed / duration );
       elapsed += Time.deltaTime;
       yield return null;
     }
     speed = v_end;
   }

Call it with:

 StartCoroutine( ChangeSpeed( 100f, 40f, 2f ) );
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
avatar image
3

Answer by Jdean · Sep 25, 2020 at 05:21 PM

I know this is old, but if you just want to adjust the value of a float smoothly inside an Update function, you can do something like this:


 float current = 0.0f; 
 
 void Update(){
         float target = 1.0f;
 
         float delta = target - current;
         delta *= Time.deltaTime;
 
         current += delta;
 }
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

7 People are following this question.

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

Related Questions

Decreasing a value over time, called by InvokeRepeating 0 Answers

Cannot convert float to int? 1 Answer

error CS0266 Cannot implicitly convert type `float' to `int'. An explicit conversion exists (are you missing a cast?) 2 Answers

Slowly increase or decrease between two int values? 0 Answers

How can you increase a float to certain number and stop, while it is being used. 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