Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 11 Next capture
2021 2022 2023
1 capture
11 Jun 22 - 11 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 bluelock3 · Aug 14, 2015 at 09:57 AM · 2dcollisionraycastlinerendererc #

Test line renderer collision?

Is there any way i could test if line render is collided with something because have this line of code to make it grow transform.localScale += new Vector3 (0.1F, 0, 0); but when it collides with something the script will stop i know how to do that just not the collision part should i use raycast? so if you have any help i would really appreciate it! 2D C#

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 JoshuaStrunk · Aug 14, 2015 at 09:27 PM 0
Share

So whenever your gameObject's collider2D is intersected by a line described by a pair of Vector2s you would like the intersected gameObject's scale to change?

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by MissingL_tter · Aug 24, 2017 at 02:21 AM

The wording of this question is a bit confusing. From what a I can tell, you need some way to tell if the line rendered is going to collide with something as it extends.

If you can check ahead of time then yes, I would suggest using a Raycast.

You can Raycast a certain distance (if you know how far you are going to be extending the line), or simply only specify an origin and a direction and let it cast to Mathf.Infinity but this is a bit more expensive than making a finite cast.

If for some reason you don't know how far you are going to be extending the line then depending on what is happening in your script you have a couple of options:

  1. Raycast a small distance from the end of the line to see if it will collide on the next physics update.

  2. You can do a lot with Try-Catch blocks in situations like these where you aren't quite sure exactly what is going to happen.

I'm not sure what you mean by "the script will stop" but if there is an error surrounding the line extension in a Try-Catch might be the solution you are looking for. Keep in mind though, that this will get "tried" on every update if you let it and you should do something to prevent that if you can.

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.

Follow this Question

Answers Answers and Comments

4 People are following this question.

avatar image avatar image avatar image avatar image

Related Questions

Object jumps through roof when holding "Up" button? 1 Answer

LineRenderer. Problem with ray displaying 2 Answers

How to do a raycast to make my player unable to move through certain objects? 2 Answers

Top down shooter: Laser Sight 1 Answer

Detecting if the object is hit by LineRenderer 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