• 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
Question by siddharth3322 · Feb 03, 2014 at 05:22 AM · collisionunity4.3contact

Trigger single collision event

For my game, I have multiple game objects for all of those I attached single collision detection script.

When object collides with other object two OnCollisionEnter method executed because each object contains same script.

I want single collision method execution per collision so what changes I have to do in my scripting?

Basically my goal is to execute single time my code withing OnCollisionEnter method. Although this question seems to be easy but frustrating me from long time.

Comment

People who like this

0 Show 0
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
Best Answer

Answer by Ashish Dwivedi · Feb 03, 2014 at 05:44 AM

You can write your code in a method in seperate class and call that method from your "OnCollisionEnter()". In the other class (having that method) take boolean variable and set it false when intially and set true when once that method is executed and make sure that your code is inside the if block having condition !boolVariable.

 public void YourMethod()
 {
  if(!boolVariable)
  {
   //your code.
   boolVariable = true;
  }
 }

I hope this would help you...

Comment

People who like this

0 Show 1 · 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 siddharth3322 · Feb 03, 2014 at 05:50 AM 0
Share

I will check this thing and reply you shortly.

avatar image

Answer by supernat · Feb 03, 2014 at 05:50 AM

Two options really. 1) create a base class in one script with the common code, but leave out the OnCollisionEnter method. Then assign that to the object you don't want getting the event. Then derive a new class from this that simply implements the OnCollisionEnter() method. Option 2) add a tag to the object that should handle the collision, such as Collidable, and then in the OnCollisionEnter, test for tag == "Collidable"

Comment

People who like this

0 Show 0 · 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.

Update about the future of Unity Answers

Unity Answers content will be migrated to a new Community platform and we are aiming to launch a public beta later in June. Please note, we are aiming to set Unity Answers to read-only mode on the 31st of May in order to prepare for the final data migration.

For more information, please read our full announcement.

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

At same positioned game objects collision detection 0 Answers

Ignore collision in particular situation 3 Answers

Line Collision Detection for 2D Game 1 Answer

Detect collider when same object contains more than on collider 1 Answer

Toggle Button for Sound On/Off 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