Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 12 Next capture
2021 2022 2023
1 capture
12 Jun 22 - 12 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 /
  • Help Room /
avatar image
0
Question by Outsid3 · May 30, 2017 at 09:46 AM · c#collisionunity 2dcolor

How can I detect the color that the ball has collided with?

Hi!

I'm working on a little game where you rotate a wheel with diferent colored wedges and you must catch the incoming balls with the corresponding wedge color.

The problem here is I have "dynamic" wedges, by that I mean that it can change the number of wedges and the portion of the wheel that they represent:

alt text alt text

And I don't know how to detect which wedge the ball has collided, because the collider gets the full circle and not the wedge (the wedges are a filled type UI image of a circle) .

Any idea on how to detect which color the ball has collided?

Thank you very much.

ps. excuse my english.

7f5ca83bf5d35ddb7b4ac649da971b0d.png (4.6 kB)
3321655d7d9f8a57c10ee6409714a00e.png (5.5 kB)
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

3 Replies

· Add your reply
  • Sort: 
avatar image
0

Answer by Bill9009 · May 30, 2017 at 10:04 AM

Alright first I need the script that allows the change of wedge color and portions. What you'll have to do is OnCollisionEnter2D() get the rotation of the gameObject and with the information of how what sides are which color you can calculate the color.

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
avatar image
0

Answer by Outsid3 · May 30, 2017 at 10:25 AM

@Bill9009 Sure, here is the script:

  public float[] values;
     public Image wedgePrefab;
     public Color[] wedgeColors;
     public float angle;
 
     void Start() {
         MakeGraph();
     }
 
 
     void MakeGraph() {
         float total = 0f;
         float zRotation = 0f;
 
         for (int i = 0; i < values.Length; i++) {
             total += values[i];
         }
 
         for (int i =0; i< values.Length; i++) {
             Image newWedge = Instantiate(wedgePrefab) as Image;
             newWedge.transform.SetParent(transform, false);
             newWedge.color = wedgeColors[i];
             newWedge.fillAmount = values[i] / total;
             newWedge.transform.rotation = Quaternion.Euler(new Vector3(0f, 0f, zRotation));
             zRotation -= newWedge.fillAmount * 360f;
         }
 
     }
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
avatar image
0

Answer by Bill9009 · May 30, 2017 at 12:01 PM

This might work:

     public float[] values;
     public Image wedgePrefab;
     public Color[] wedgeColors;
     public float angle;
     public static Image currentIm;
     Dictionary<float, Image> imageKey;
     List<float> f1 = new List<float>();
     List<float> f2 = new List<float>();
     void Start()
     {
         MakeGraph();
     }
 
 
     void MakeGraph()
     {
         float total = 0f;
         float zRotation = 0f;
 
         for (int i = 0; i < values.Length; i++)
         {
             total += values[i];
         }
 
         for (int i = 0; i < values.Length; i++)
         {
             Image newWedge = Instantiate(wedgePrefab) as Image;
             newWedge.transform.SetParent(transform, false);
             newWedge.color = wedgeColors[i];
             newWedge.fillAmount = values[i] / total;
             f1.Add(zRotation);
             f2.Add(zRotation - newWedge.fillAmount * 360);
             imageKey.Add(f1[i], newWedge);
             newWedge.transform.rotation = Quaternion.Euler(new Vector3(0f, 0f, zRotation));
             zRotation -= newWedge.fillAmount * 360f;
         }
     }
 
     void RetImage(float f, ref Image im)
     {
         for (int i = 0; i < imageKey.Count; i++)
             if (f > f2[i] && f <= f1[i])//You might need to switch the signs on these around
                 imageKey.TryGetValue(f1[i], out im);
     }

     private void OnCollisionEnter2D(Collision col)
     {
             RetImage(transform.rotation.z, currentIm);
     }


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

371 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 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 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 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 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 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 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

How to use a function from another script 1 Answer

Checking for a gameobject at a position 1 Answer

My main character isn't being able to colide with the objects. 1 Answer

How in the world do I display GameObjects from an array in an equal y distance to eachother 2 Answers

why isnt my code working, 2 Answers


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