using UnityEngine;

​

public class BallController : MonoBehaviour

{

    // Variables for controlling the ball

    private Rigidbody2D rb;

    private bool isDragging = false;

    private Vector3 startPoint;

    private Vector3 endPoint;

    private Vector2 direction;

    private float forceMagnitude = 10f;

​

    void Start()

    {

        // Get the Rigidbody component attached to the ball

        rb = GetComponent<Rigidbody2D>();

    }

​

    void Update()

    {

        // Check for mouse button down

        if (Input.GetMouseButtonDown(0))

        {

            // Get the starting point of the drag

            startPoint = Camera.main.ScreenToWorldPoint(Input.mousePosition);

            isDragging = true;

        }

​

        // Check for mouse button release

        if (Input.GetMouseButtonUp(0) && isDragging)

        {

            // Get the ending point of the drag

            endPoint = Camera.main.ScreenToWorldPoint(Input.mousePosition);

            direction = (endPoint - startPoint).normalized;

            // Launch the ball

            rb.AddForce(direction * forceMagnitude, ForceMode2D.Impulse);

            isDragging = false;

        }

​

        // Check if dragging

        if (isDragging)

        {

            // Get the current mouse position

            Vector3 currentPoint = Camera.main.ScreenToWorldPoint(Input.mousePosition);

            // Adjust the position of the ball

            transform.position = new Vector3(currentPoint.x, currentPoint.y, transform.position.z);

        }

    }

}