Help me please i am stuck.

Question

So this is the code , and the message i get is The call is ambiguous between the following methods or properties: UnityEngine.Vector2.operator +(UnityEngine.Vector2, UnityEngine.Vector2)' and UnityEngine.Vector3.operator +(UnityEngine.Vector3, UnityEngine.Vector3)'

using UnityEngine; using System.Collections;

public class ball : MonoBehaviour {

 private Paddle paddle;
 private Vector3 paddleToBallVector;
 private bool hasStared = false;
 // Use this for initialization
 void Start () {

 paddle = GameObject.FindObjectOfType<Paddle>();
 paddleToBallVector = this.transform.position - paddle.transform.position;
 print (paddleToBallVector);

 }
 
 // Update is called once per frame
 void Update () {
 if (!hasStared) {
     this.transform.position = paddle.transform.position + paddleToBallVector;
 }

     if (Input.GetMouseButtonDown(0)) {

     print ("Left mouse Clicked, Launch ball");
     hasStared = true;
     this.GetComponent<Rigidbody2D>().velocity = new Vector2 (3f, 7.5f);


 }
 }
 void OnCollisionEnter2D (Collision2D collision){

     //Ball does not trigger sound when brick is destroyed
     //Not 100% sure why, possibliy because there isnt a brick
     Vector2 tweak = new Vector2 (Random.Range(0f,0.2f), Random.Range(0f,0.2f));
     if ( hasStared) {
     GetComponent<AudioSource>().Play();
     GetComponent<Rigidbody>().velocity += tweak;

     }

 }
 }

console error: The call is ambiguous between the following methods or properties: UnityEngine.Vector2.operator +(UnityEngine.Vector2, UnityEngine.Vector2)' and UnityEngine.Vector3.operator +(UnityEngine.Vector3, UnityEngine.Vector3)'

Answer 1

In OnCollisionEnter2D() change this

 GetComponent<Rigidbody>().velocity += tweak;

to this

 GetComponent<Rigidbody2D>().velocity += tweak;

but instead may want to make the following changes to your class like so

 using UnityEngine;
 using System.Collections;
 
 public class ball : MonoBehaviour
 {
     private Paddle paddle;
     private Vector3 paddleToBallVector;
 
     private bool hasStared = false;
     
     private AudioSource audioSource;
     private Rigidbody2D rigidbody2D;
 
     // Use this for initialization
     void Start ()
     {
         paddle = GameObject.FindObjectOfType<Paddle>();
         paddleToBallVector = this.transform.position - paddle.transform.position;
         print (paddleToBallVector);
         
         audioSource = GetComponent<AudioSource>();
         rigidbody2D = GetComponent<Rigidbody2D>();
     }
 
     // Update is called once per frame
     void Update ()
     {
         if (!hasStared)
         {
             this.transform.position = paddle.transform.position + paddleToBallVector;
         }
         if (Input.GetMouseButtonDown(0))
         {
             print ("Left mouse Clicked, Launch ball");
             hasStared = true;
             rigidbody2D.velocity = new Vector2 (3f, 7.5f);
         }
     }
 
     void OnCollisionEnter2D (Collision2D collision)
     {
         //Ball does not trigger sound when brick is destroyed
         //Not 100% sure why, possibliy because there isnt a brick
         Vector2 tweak = new Vector2 (Random.Range(0f,0.2f), Random.Range(0f,0.2f));
         if ( hasStared)
         {
             audioSource.Play();
             rigidbody2D.velocity += tweak;
         }
     }
 }

Help me please i am stuck.

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