using UnityEngine;
using UnityEngine.SceneManagement;

public class Obstacle : MonoBehaviour
{
    public float fallSpeed = 200f;
    public RectTransform robot;
    public float shrink = 20f;
    public string nextScene = "GameOver";

    private RectTransform rectTransform;
    private bool isHit = false;

    void Start()
    {
        rectTransform = GetComponent<RectTransform>();
    }

    void Update()
    {
        if (isHit) return;

        // Pád dolů
        rectTransform.anchoredPosition += Vector2.down * fallSpeed * Time.deltaTime;

        // Detekce dotyku přes Rect
        Rect obstacleRect = GetWorldRect(rectTransform, shrink);
        Rect robotRect = GetWorldRect(robot, shrink);

        if (obstacleRect.Overlaps(robotRect))
        {
            isHit = true;
            Invoke("LoadNextScene", 0.5f);
        }
    }

    Rect GetWorldRect(RectTransform rt, float shrinkAmount = 0f)
    {
        Vector3[] corners = new Vector3[4];
        rt.GetWorldCorners(corners);
        return new Rect(
            corners[0].x + shrinkAmount,
            corners[0].y + shrinkAmount,
            corners[2].x - corners[0].x - shrinkAmount * 2,
            corners[2].y - corners[0].y - shrinkAmount * 2
        );
    }

    void LoadNextScene()
    {
        SceneManager.LoadScene(nextScene);
    }
}