using UnityEngine;

public class ScrollText : MonoBehaviour
{
    public float startSpeed = 10f; // Initial scroll speed
    public float maxSpeed = 100f; // Maximum scroll speed
    public float acceleration = 10f; // Speed increase over time
    public RectTransform textTransform; // Reference to the Text's RectTransform
    public RectTransform maskPanel; // Reference to the Mask Panel
    public float stopAtYPosition = 3736f; // Y position where scrolling stops

    private float currentSpeed;

    void Start()
    {
        // Initialize current speed to start speed
        currentSpeed = startSpeed;

        // Ensure the text starts below the mask panel
        Vector3 startPosition = textTransform.anchoredPosition;
        startPosition.y = -maskPanel.rect.height;
        textTransform.anchoredPosition = startPosition;
    }

    void Update()
    {
        // Stop scrolling if the position has reached or exceeded the stop position
        if (textTransform.anchoredPosition.y >= stopAtYPosition)
        {
            // Ensure the final position is exactly the stop position
            Vector3 finalPosition = textTransform.anchoredPosition;
            finalPosition.y = stopAtYPosition;
            textTransform.anchoredPosition = finalPosition;
            return; // Exit the Update method to stop further scrolling
        }

        // Increase the speed gradually until it reaches the max speed
        currentSpeed = Mathf.Min(currentSpeed + acceleration * Time.deltaTime, maxSpeed);

        // Move the text upward
        Vector3 position = textTransform.anchoredPosition;
        position.y += currentSpeed * Time.deltaTime;
        textTransform.anchoredPosition = position;
    }
}