• 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 angiegone · Feb 03 at 09:21 PM · scripting problemcodepageroll a ballcompiling

Trying to add an enemy to the Roll a Ball Challenge. Problem with Player code

I'm working on the Roll A Ball tutorial and for my assignment we were given the challenge to add enemy blocks and a Score counter that essentially reduces the score depending on how many enemy blocks you pick up.

So far, the game is fine but it does not pick up the enemies or keep the new score with this code:

 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
 
 public class PlayerController : MonoBehaviour
 {
 
     public float speed;
     public Text countText;
     public Text winText;
     public Text scoreText;
 
     private Rigidbody rb;
     private int count;
 
     void Start()
     {
         rb = GetComponent<Rigidbody>();
         count = 0;
         SetCountText();
         winText.text = "";
     }
 
     void FixedUpdate()
     {
         float moveHorizontal = Input.GetAxis("Horizontal");
         float moveVertical = Input.GetAxis("Vertical");
 
         Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
 
         rb.AddForce(movement * speed);
     }
 
     void OnTriggerEnter(Collider other)
     {
         if (other.gameObject.CompareTag("PickUp"))
         {
             other.gameObject.SetActive(false);
             count = count + 1;
             SetCountText();
         }
     }
 
     void SetCountText()
     {
         countText.text = "Count: " + count.ToString();
         if (count >= 12)
         {
             winText.text = "You Win!";
         }
     }
 }



When I start switching things around and trying to make the player pick up the enemies and the score to show up, it starts saying that I have compile errors. This is the code that I have, and I don't know where I'm going wrong with things:

 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
 
 public class PlayerController : MonoBehaviour
 {
 
     public float speed;
     public Text countText;
     public Text winText;
     public Text scoreText;
 
     private Rigidbody rb;
     private int count;
 
     void Start()
     {
         rb = GetComponent<Rigidbody>();
         count = 0;
         score = 0; 
         SetAllText();
         winText.text = "";
     }
 
     void FixedUpdate()
     {
         float moveHorizontal = Input.GetAxis("Horizontal");
         float moveVertical = Input.GetAxis("Vertical");
 
         Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
 
         rb.AddForce(movement * speed);
     }
 
     void OnTriggerEnter(Collider other)
     {
         if (other.gameObject.CompareTag("PickUp"))
         {
             other.gameObject.SetActive(false);
             count = count + 1;
             score = score + 1;
             SetAllText();
         }
 
         else if (other.gameObject.CompareTag("Enemy"))
         {
             other.gameObject.SetActive(false);
             count = count + 1;
             score = score - 1;
             SetAllText();
         }
     }
 
     void SetAllText()
     {
         countText.text = "Count: " + count.ToString();
         if (count >= 12)
         {
             winText.text = "You Win!";
         }
 
     }
 }



I'm a beginner with Unity and Code, and to be honest I cannot wrap my head around this particular part of the engine. Any help would be highly appreciated

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

Answer by xRolo · Feb 05 at 11:08 PM

'score' doesn't exist in the current context. You're calling it without it being set like the count integer. This can be fixed by adding "private int score;" anywhere above the Start function. Then you can just make the score display in a text, make the script a bit shorter by making it count++; / score--;

Completed Working Script:

 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
 
 public class PlayerController : MonoBehaviour
 {
 
     public float speed;
     public Text countText;
     public Text winText;
     public Text scoreText;
 
     private Rigidbody rb;
     private int count;
     private int score; // we have a new integer called score, like count
 
     void Start()
     {
         rb = GetComponent<Rigidbody>();
         count = 0;
         score = 0;
         winText.text = "";
         scoreText.text = "";
 
         SetAllText();   // Set the text up
     }
 
     void FixedUpdate()
     {
         float moveHorizontal = Input.GetAxis("Horizontal");
         float moveVertical = Input.GetAxis("Vertical");
 
         Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
 
         rb.AddForce(movement * speed);
     }
 
     void OnTriggerEnter(Collider other)
     {
         if (other.gameObject.CompareTag("PickUp"))
         {
             other.gameObject.SetActive(false);
             count++; // ++ is equal to: count = count + 1;
             score--; // -- is equal to: score = score - 1;
             SetAllText();
         }
 
         else if (other.gameObject.CompareTag("Enemy"))
         {
             other.gameObject.SetActive(false);
             count++; // ++ is equal to: count = count + 1;
             score--; // -- is equal to: score = score - 1;
             SetAllText();
         }
     }
 
     void SetAllText()
     {
         scoreText.text = "Score: " + score.ToString(); // Show Score as Text
         countText.text = "Count: " + count.ToString();
         if (count >= 12)
         {
             winText.text = "You Win!";
         }
 
     }
 }
 
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.

Welcome to Unity Answers

The best place to ask and answer questions about development with Unity.

To help users navigate the site we have posted a site navigation guide.

If you are a new user to Unity Answers, check out our FAQ for more information.

Make sure to check out our Knowledge Base for commonly asked Unity questions.

If you are a moderator, see our Moderator Guidelines page.

We are making improvements to UA, see the list of changes.



Follow this Question

Answers Answers and Comments

245 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

Related Questions

Problem with script? 0 Answers

Need help with physics base enemy AI movement 1 Answer

Call animation only once? 1 Answer

Player rotation always resets. 0 Answers

2 player Roll a Ball 0 Answers

  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges