• 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
0
Question by crewaustin66 · Jun 10, 2016 at 03:31 PM · force

Why won't my ball jump?

 public class Move : MonoBehaviour {
 
     private Rigidbody rb;
     public float speed = 10;
     public bool jump = false;
     public float jumpUp = 0;
 
     // Use this for initialization     void Start () {
         rb = GetComponent<Rigidbody>();     }          // Update is called once per frame     void Update () {          }
 
     // Update is called once per physics calculations
     void FixedUpdate()
     {
         float moveHorizontal = Input.GetAxis("Mouse X");
         float moveVertical = Input.GetAxis("Mouse Y");
         jump = Input.GetButtonDown("space");
 
         if (jump == true)
         {
             jumpUp = 10.0f;
         }
 
         Vector3 movement = new Vector3(moveHorizontal * speed, jumpUp
 * speed, moveVertical * speed);
 
         jump = false;    
 
         rb.AddForce(movement);
     } }



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 vintar · Jun 10, 2016 at 03:52 PM 0
Share

What is the error if any? Do you know that you commented out the Start() method?

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by JedBeryll · Jun 10, 2016 at 03:54 PM

AddForce assumes ForceMode.Force if you don't specify it. That is designed for continuous forces. It should work if you split this code:

 Vector3 movement = new Vector3(moveHorizontal * speed, 0f, moveVertical * speed);
 Vector3 jumpForce = new Vector3(0f, jump, 0f);
 
 rb.AddForce(movement);
 rb.AddForce(jumpForce, ForceMode.Impulse);

https://docs.unity3d.com/ScriptReference/ForceMode.html

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

58 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

Related Questions

left force right force 0 Answers

How do I make a rocket? 2 Answers

rigidbody.AddForce doesn´t work in c# 1 Answer

i want my sphere character launched to the air when he hits collider. how to do this? 1 Answer

Why is there no Collision2D.Impulse? (Calculating the force needed to break an 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