Need some help with transform.position and velocity of object.

Questions & Answers
1

Here I’m developing a basic arkanoid game where ball bounces off a paddle and gamestatus.cs script keeps track of all score and powerups so i kept it as a dontdestroyonload but because of this as the scene changes the paddle references are missing and so does the balls so i made the paddle as dontdestory but kept the ball as it is. On the ball script there are two functions LockonPaddle and OnLaunchClick.

 public void LockOnPaddle()
    {
        Vector2 PaddlePos  = new Vector2(paddle1.transform.position.x, paddle1.transform.position.y);
        transform.position = PaddlePos + MouseToPaddlePos;
    }

    public void LaunchOnClick()
    {
        if(Input.GetMouseButtonDown(0))
        {
            HasStarted             = true;
            myRigidBody2D.velocity = new Vector2(LaunchX,LaunchY);
        }
    }

But when the scene changes the ball references are missing as it gets destroyed in the previous scene.
and if i kept the ball as a dontdestroy it doesn’t gets lockonpaddle on the next scene, it starts from its last position on previous scene.
So i need some help regarding when the scene changes here

 public void DestroyBlocks()
        {
            BreakableBlocks--;
    
            if(BreakableBlocks <= 0)
            {
                sceneLoader.LoadNextScene();
                FindObjectOfType<Ball>().GetComponent<Rigidbody2D>().velocity = Vector2.zero;
                FindObjectOfType<Ball>().LockOnPaddle();
                FindObjectOfType<Ball>().LaunchOnClick();
            }
        }

i want to make the ball again stick to the paddle and launch on click .
and the below is the lose on collider script where the ball collides the object and new ball is instantiated.

 public void OnTriggerEnter2D(Collider2D collision)
        {
            
            if (collision.gameObject.tag.Equals("NormalBall") == true)
            {
                if(lifePower == 0)
                {
                    collision.GetComponent<Collider2D>().isTrigger = true;
                    gameStatus                                     = FindObjectOfType<GameStatus>();
                    gameStatus.ChangePosition();
                    DestroyLevel();
                }
                else
                {
                    for (var i= lifePower-1; i < lifePower; i++)
                    {
                        Instantiate(ball,new Vector3(paddle.transform.position.x, 0.799f, 0), Quaternion.identity);// Here Instead of Instantiating is it possible to transform the ball position and get it back on paddle.
                    }
                    GameStatus.countLives--;
                }
            }
            else
            {
                collision.GetComponent<Collider2D>().isTrigger = false;
            }
        }

A little help would be much appreciated. :slight_smile:

2

I’ve solved the problem , it was a silly mistake :slight_smile: here is what i did …
created a function and made the bool hasstarted static and used in the sceneloader.cs script

NextSceneBall()
{
HasStarted = false;
}

so in the update function of ball when onclick , ball launches and after collision it reset itself.

void Update()
    {
        if (!HasStarted)
        {
            LockOnPaddle();
            LaunchOnClick();
        }
        AddGravity();
        var speed = myRigidBody2D.velocity.magnitude;
        if(speed > 15f)
        {
            particleSystem.Play();
        }
    }