using UnityEngine;

public class PlayerMove : MonoBehaviour
{
    private RectTransform dinoRect;
    private Canvas parentCanvas;

    [Header("Pengaturan Gerak (UI)")]
    public float speed = 15f; 
    public float batasKiri = -500f; 
    public float batasKanan = 500f;

    void Start() {
        // --- PERBAIKAN 1: Inisialisasi Komponen (WAJIB) ---
        dinoRect = GetComponent<RectTransform>();
        parentCanvas = GetComponentInParent<Canvas>();

        // --- PERBAIKAN 2: Logic Ganti Skin yang Aman ---
        int id = PlayerPrefs.GetInt("SkinDipakai", 0); 
        
        if (SkinData.instance != null) {
            // Kita cari Image karena Dino kamu ada di UI (Canvas)
            // Kalau Dino kamu pakai SpriteRenderer (World), pakai GetComponent<SpriteRenderer>()
            UnityEngine.UI.Image imgDino = GetComponent<UnityEngine.UI.Image>();
            
            if (imgDino != null && id < SkinData.instance.daftarSkin.Length) {
                imgDino.sprite = SkinData.instance.daftarSkin[id].spriteGameplay;
            }
        }
    }

    void Update()
    {
        // PENGAMAN: Jika dinoRect atau parentCanvas gagal ditemukan, jangan jalankan Update
        if (dinoRect == null || parentCanvas == null) return;

        if (Input.GetMouseButton(0)) 
        {
            Vector2 mousePos = Input.mousePosition;
            Vector2 localMousePos;

            // Baris 32 yang tadi error sekarang aman karena parentCanvas sudah di-assign di Start
            RectTransformUtility.ScreenPointToLocalPointInRectangle(
                parentCanvas.transform as RectTransform, 
                mousePos, 
                parentCanvas.worldCamera, 
                out localMousePos
            );

            float targetX = Mathf.Clamp(localMousePos.x, batasKiri, batasKanan);
            Vector2 targetPosition = new Vector2(targetX, dinoRect.anchoredPosition.y);
            
            dinoRect.anchoredPosition = Vector2.Lerp(dinoRect.anchoredPosition, targetPosition, Time.deltaTime * speed);
        }
    }

    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.CompareTag("Sayur"))
        {
            GameManagerTangkap.instance.AddScore(10);
            Destroy(collision.gameObject);
        }
        else if (collision.CompareTag("JunkFood"))
        {
            GameManagerTangkap.instance.TakeDamage();
            Destroy(collision.gameObject);
        }
    }
}