• 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 MithosKuu · Sep 10, 2012 at 09:18 AM · 2dprojectileshootside scroller

Fire a Projectile towards a specific object?

I'm making a 2D Side Scroller and I'm trying to launch a projectile from an object called "StrawSpawn" towards and object called "Target" at a speed of 20.

With my current code my projectile always fires off to screen right at a slight angle and nearly too fast to see, regardless of where "StrawSpawn" and "Target" are located relative to each other.

Can someone take a look at my code and tell me what I'm doing wrong? Thanks.

 var projectile : Rigidbody;
 var speed = 20;
 
 function Update () 
 {
     // Put this in your update function
     if (Input.GetButtonDown("Fire")) {
 
     // Instantiate the projectile at the position and rotation of this transform
     var clone : Rigidbody;
     clone = Instantiate(projectile, GameObject.Find("StrawSpawn").transform.position, transform.rotation);
 
     clone.velocity = transform.TransformDirection (GameObject.Find("Target").transform.position * speed);
 
     Destroy (clone.gameObject, 3);
     }
 }
Comment
rsd31

People who like this

1 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

1 Reply

· Add your reply
  • Sort: 
avatar image
Best Answer

Answer by MithosKuu · Sep 11, 2012 at 08:35 AM

After asking on the forums, this is the working code I ended up with for anyone else looking to do something similar:

 var projectile : Rigidbody;
 var speed = 20;
 
 function Update () 
 {
     // Put this in your update function
     if (Input.GetButtonDown("Fire")) {
 
     // Instantiate the projectile at the position and rotation of this transform
     var clone : Rigidbody;
     clone = Instantiate(projectile, GameObject.Find("StrawSpawn").transform.position, transform.rotation);
 
     clone.velocity = (GameObject.Find("Target").transform.position - transform.position).normalized * speed; 
     clone.velocity.y=0;
 
     Destroy (clone.gameObject, 3);
     }
 }
Comment
rsd31
rASS_k

People who like this

2 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.

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

8 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Projectile move towards mouse cursor 3 Answers

C# Projectile Ricochet After Collision2d 1 Answer

(2D) Face Object in Direction of Travel 1 Answer

How do I get my character to shoot a projectile in the direction of the cursor? 1 Answer

Flipped objects Rotation issues 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