Section 5, lecture 89

Sabeen_Moin · July 6, 2020, 5:53pm

Hello @Rob i need help to fix this error .

Sabeen_Moin · May 18, 2017, 6:19pm

I fixed it myself

The error came because of not adding these methods;

public AudioClip boing;

// under the class.

 AudioSource.PlayClipAtPoint (boing, transform.position);

// under OnCollisionEnter2D.

I looked at brick sound method and just add in into ball script, so the error is gone but the ball is not boing

Rob · May 18, 2017, 7:34pm

Well done on fixing the error yourself, that is always a great feeling, and sometimes you just need to come back to the issue after a little break with fresh eyes

Regarding the ball not going “boing”… can you post the full Ball.cs script as it is as this time please.

Sabeen_Moin · May 18, 2017, 8:56pm

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 


public class Ball : MonoBehaviour {

	public AudioClip boing;
	private Paddle paddle;
	private bool hasStarted = false;
	private Vector3 paddleToBallVector;

	// Use this for initialization
	void Start () {
		paddle = GameObject.FindObjectOfType<Paddle>();
		paddleToBallVector = this.transform.position - paddle.transform.position; 

	}
	
	// Update is called once per frame
	void Update () {
		if (!hasStarted) {
			// lock the ball to the paddle.
			this.transform.position = paddle.transform.position + paddleToBallVector;

			// wait for the mouse press to lunch.
		    if (Input.GetMouseButtonDown(0)) {
			    print("mouse clicked, launced ball");
			    hasStarted = true;
				this.GetComponent<Rigidbody2D>().velocity = new Vector2 (2f, 10);
			}
		}
	}

	void OnCollisionEnder2D (Collision2D collision) { 
		// ball does not trigger when brick is destroyed.
		// Not 100% sure why, possibly because brick is not there.
		Vector2 tweak = new Vector2 (Random.Range(0f, 0.2f), Random.Range(0f,0.2f));
		print (tweak);
		if (hasStarted) {
			AudioSource.PlayClipAtPoint (boing, transform.position);
			this.GetComponent<Rigidbody2D>().velocity += tweak;
		}
	}
}

Here is the Ball script

Rob · May 18, 2017, 9:20pm

Hi @Sabeen_Moin,

Remember the other day when I spotted the typo and pointed it out to you - you have the same one in this script also;

void OnCollisionEnder2D (Collision2D collision) {

That should read;

void OnCollisionEnter2D (Collision2D collision) {

The code within that method would not have been being called at all, correct the method name and see if that resolves the issue.

If it does, check your other scripts also for the same issue, you may have copy/pasted the same methods from one script to another, hence the same error/issue etc.

Hope this helps.

Also, when pasting your code into your posts, if you enter three ` characters before it, and three after it, all of the code between will be formatted correctly (I have edited several of your posts to make it easier to read for the person helping you).