• 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 windows123 · May 20, 2017 at 05:15 PM · errorerror message

What is the problem?( Activator.cs(56,58): error CS0131: The left-hand side of an assignment must be a variable, a property or an indexer)

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Activator : MonoBehaviour {
 
     SpriteRenderer sr;
     public KeyCode key;
     bool active = false;
     GameObject note;
     Color old;
     public bool createMode;
     public GameObject n;
 
     void Awake () {
         note = GameObject.Find ("GameManager");
         sr = GetComponent<SpriteRenderer> ();
     }
 
     void Start () {
         old = sr.color;
     }
     
     // Update is called once per frame
     void Update () {
         if(createMode){
             if (Input.GetKeyDown (key))
                 Instantiate (n, transform.position, Quaternion.identity);
         }else{
 
         if (Input.GetKeyDown (key))
             StartCoroutine (Pressed ());
         
 
         if (Input.GetKeyDown (key) && active) {
             Destroy (note);
             AddScore ();
             active = false;
             }
         }
             
     }
 
     void OnTriggerEnter2D(Collider2D col) {
         active = true;
         if (col.gameObject.tag == "Note")
             note = col.gameObject;
     }
 
     void OnTriggerExit2D (Collider2D col) {
         active = false;
 
     }
 
     void AddScore() {
         PlayerPrefs.SetInt ("Score", PlayerPrefs.GetInt ("Score")=note.GetComponent<GameManager>());
     }
 
     IEnumerator Pressed () {
         sr.color = new Color(0, 0, 0);
         yield return new WaitForSeconds (0.2f);
         sr.color = old;
     }
 }
 
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

1 Reply

· Add your reply
  • Sort: 
avatar image
0
Best Answer

Answer by Jawchewa · May 20, 2017 at 09:27 PM

The problem is where you are trying to set your PlayerPrefs here:

      PlayerPrefs.SetInt ("Score", PlayerPrefs.GetInt ("Score")=note.GetComponent<GameManager>());

Currently, you are trying trying to assign a value to to the results of PlayerPrefs.GetInt ("Score"). This is syntactically incorrect. PlayerPrefs.SetInt takes in a string and an int, so you actually need to pass an int into it instead. That would be something like this:

      PlayerPrefs.SetInt ("Score", GetComponent<GameManager>().GetScore());

Or, if you are trying to add to the already existing score, you would do something like this:

      PlayerPrefs.SetInt ("Score", PlayerPrefs.GetInt("Score")+GetComponent<GameManager>().GetScore());
Comment
Add comment · 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 windows123 · May 21, 2017 at 07:06 AM 0
Share

Oh!Very thanks!

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

120 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

Related Questions

Array of dictionaries: "Object reference not set to an instance of an object" 0 Answers

Errors on Script? 1 Answer

Unable to get VRTK 3.2.1 working in Unity 5.6,Unable to get VRTK 3.2.1 to run in Unity 5.6 0 Answers

Hundreds off errors n console upon starting Unity 2018.3.9f1 related to "has no meta file" 0 Answers

How do I fix this Text Mesh Pro Error? 0 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