• 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 Chaosgod_Esper · Oct 15, 2013 at 05:31 PM · rotaterotate objectmathfshort

Rotate the shortest way?

Hi there..

I got stuck in a problem.. I´ve written this small code to rotate my player smoothly into a given direction:'

 void Rotate_to(){
     rotate_t += Time.deltaTime * RotateSpeed;
     PlayerHolder.transform.eulerAngles = new Vector3(0, Mathf.Lerp(PlayerHolder.transform.eulerAngles.y, new_direction, rotate_t), 0);
 }

The problem is: He is rotating always to the right.. if the players rotation is at 45°, and he needs to rotate to -45° (315°), he is rotating rightways.. instead of the shorter left way..

So i tried for some time now, to ask for the shorter way.. But couldn´t find an answer... I heard of Mathf.DeltaAngle or asking for Mathf.Abs differences.. But it´s not working..

Can someone help me out here? :(

The complete code: Third Person Controller (Pastebin.com)

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

6 Replies

· Add your reply
  • Sort: 
avatar image
0

Answer by sumpfkraut · Oct 11, 2020 at 11:59 AM

i use this:

 //difference from current angle to target angle
 float myTargetAngle = 0f; //example input
 float myCurrentAngle = 999f; //example input
 float diff = (myCurrentAngle % 360) - _myTargetAngle;
 if (diff >= 360) diff -= 360; else if (diff <= -360) diff += 360;
     
 //rotation direction - left/right - the short way
 if (diff >= 180) myCurrentAngle += 360 - diff; //twisted minus
 else if (diff <= -180) myCurrentAngle += -360 - diff; //twisted plus
 else myCurrentAngle -= diff; //standard
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
  • ‹
  • 1
  • 2

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

20 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

Related Questions

How Can I Rotate my object points 1 Answer

problem with rotation 2D 1 Answer

How to reset child object's rotation without changing parent's 1 Answer

Rotate to facing direction 2.5D 2 Answers

Move and Rotate player in circular motion? 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