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 michaeljota · Aug 12, 2015 at 04:21 AM · nullreferenceexceptiongetcomponentrequirecomponent

GetComponet() returning null with require component script

Hi! I take the ThirdPersonUserControl script and change a few lines to move the player through websocket. The problem is that it keeps returing null when I get the ThirdPersonCharacter. That should NOT happen since I add the require typeof before the class.

 using UnityEngine;
 using System.Collections;
 using LitJson;
 using UnityStandardAssets.CrossPlatformInput;
 using UnityStandardAssets.Characters.ThirdPerson;
 
 [RequireComponent (typeof (ThirdPersonCharacter))]
 public class WebSocketInputController : MonoBehaviour {
 
     private ThirdPersonCharacter m_Character; // A reference to the ThirdPersonCharacter on the object
     private Transform m_Cam;                  // A reference to the main camera in the scenes transform
     private Vector3 m_CamForward;             // The current forward direction of the camera
     private Vector3 m_Move;                   // the world-relative desired move direction, calculated from the camForward and user input.
 
 
     // Use this for initialization
     void Start () {
         // get the transform of the main camera
         if (Camera.main != null) {
             m_Cam = Camera.main.transform;
         } else {
             Debug.LogWarning (
                 "Warning: no main camera found. Third person character needs a Camera tagged \"MainCamera\", for camera-relative controls.");
             // we use self-relative controls in this case, which probably isn't what the user wants, but hey, we warned them!
         }
 
         // get the third person character ( this should never be null due to require component )
         m_Character = GetComponent<ThirdPersonCharacter> ();
         if (m_Character == null) {
             Debug.LogError("Dude! It's not getting the component!");
         }
         NotificationCenter.DefaultCenter().AddObserver(this, "Move");
     }
     
     // Update is called once per frame
     void Update () {
         Vector2 move = new Vector2(
             CrossPlatformInputManager.GetAxis ("Horizontal"),
             CrossPlatformInputManager.GetAxis("Vertical")
             );
         if (move != Vector2.zero) {
             Debug.Log(JsonMapper.ToJson(move));
             GameManager.Instance.WebSocket.SendUTF8 (JsonMapper.ToJson (move));
             NotificationCenter.DefaultCenter().PostNotification(this, "Move", move);
         }
     }
 
     private void Move(Notification notification) {
         Vector2 move = (Vector2) notification.data;
 
         // calculate move direction to pass to character
         if (m_Cam != null) {
             // calculate camera relative direction to move:
             m_CamForward = Vector3.Scale (m_Cam.forward, new Vector3 (1, 0, 1)).normalized;
             m_Move = move.y * m_CamForward + move.x * m_Cam.right;
         } else {
             // we use world-relative directions in the case of no main camera
             m_Move = move.y * Vector3.forward + move.x * Vector3.right;
         }
 
         // pass all parameters to the character control script
         m_Character.Move (m_Move, false, false);
     }
 
 }
 

There is the entire class. Thanks in advance!

PS: I remove the crunch and jump cause I don't need them. Just need the player to move arround.

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 Wesai · Aug 12, 2015 at 01:12 PM 0
Share

Did you try removing this class and re-adding it back? Unity seems to glitch on me whenever I use RequireComponent, removing the script (plus any component that it actually requires) and then re-adding it seems to fix it for me.

Also, do you have two classes named ThirdPersonCharacter?

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by michaeljota · Aug 12, 2015 at 04:20 PM

I solve it. I don't have two clases named ThridPersonCharacter, but I did have the script added to two objects. Also, the second object did not respond to the "RequireComponent". I asume that I add ir before I code the "RequireComponent".

Sorry for that. Thanks anyway!

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

3 People are following this question.

avatar image avatar image avatar image

Related Questions

Why is this null? Finding a script on an object 3 Answers

Object reference not set to an instance of an object in c#. 0 Answers

NullReferenceException. GetComponent dose not work properly 2 Answers

NullReferenceException - Editor script using GetComponent after AddComponent 1 Answer

NullRef on my parent script 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