• 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
1
Question by eXKR · Jan 06, 2010 at 10:38 PM · gameobjectraycast

How can a gameobject be deactivated if it is "seen" by the crosshair?

I know it should be done with raycasting method but I don't get the point on making it works... Any idea?

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

1 Reply

· Add your reply
  • Sort: 
avatar image
2
Best Answer

Answer by Jaap Kreijkamp · Jan 06, 2010 at 10:53 PM

You need to do something like this:

  1. Add colliders to the gameobjects.
  2. Use Camera.main.ScreenPointToRay to create a ray from crosshair into world
  3. Use Physics.Raycast to find out what you're hitting
  4. Use SetActiveRecursivly on the gameobject the found collider is attached to to disable it

EDIT: okay, some code to help you:

function Update () {
    if (Input.GetButtonDown("Fire1")) {
        var ray : Ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        var hit : RaycastHit;
        if (Physics.Raycast(ray, hit)) {
            // hit will now contain info about the object clicked upon
            hit.transform.gameObject.SetActiveRecursively(false);
        }
    }
}
Comment
Add comment · Show 2 · 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 eXKR · Jan 08, 2010 at 07:29 AM 0
Share

It helped and made my think in the correct way, thanks. Anyway I can't get it work: I'm lost at point 3... can you please make me figure out how it can be coded?

Thanks a lot

avatar image Jaap Kreijkamp · Jan 09, 2010 at 12:29 AM 0
Share

Added example code now so that should get you running again.

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

No one has followed this question yet.

Related Questions

Move up gameobject from under the ground or object (vibration problem) 0 Answers

ContactPoint with OnParticleCollision? 0 Answers

Unity 2021 LTS: IPointerEnterHandler is broken 1 Answer

Store previous gameObject that raycast had hit. (Or store any previous value in Update for that matter) 1 Answer

AI Instantiate targets/prefab. (pick target issue) 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