using UnityEngine;
using UnityEngine.EventSystems;
using KTGMGemClient;
using UnityEngine.UI;

public class ImageFire1 : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IDragHandler, IBeginDragHandler, IEndDragHandler
{
    ImageFire2 imageFire2;

    public void OnPointerEnter(PointerEventData eventData)
    {
        if (imageFire2.IsDraging)
        {
            imageFire2.SetTarget(this);
        }
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        if (imageFire2.IsDraging)
        {
            imageFire2.SetTarget(null);
        }
    }

    GameObject level1, level2;//等级标志
    bool canDrag;//是否可以推拽
    RectTransform rectTransform;//自身Rect

    public RectTransform GetRect
    {
        get
        {
            return rectTransform;
        }
    }
    GameObject target;//推拽到塔位置的标识
    Image tmpImage;//自身图片
    Vector2 pos;//初始坐标
    //Vector3 startP;
    public Vector2 GetStartP
    {
        get
        {
            return pos;
        }
    }

    // Start is called before the first frame update
    private void Awake()
    {

        //startP = transform.position;
        rectTransform = GetComponent<RectTransform>();

        imageFire2 = transform.parent.Find("Image_Fire2").GetComponent<ImageFire2>();
        level1 = transform.Find("Image_1").gameObject;
        level2 = transform.Find("Image_2").gameObject;
        level2.SetActive(false);

        tmpImage = GetComponent<Image>();
        rectTransform = GetComponent<RectTransform>();
        pos = rectTransform.anchoredPosition;
    }

    //合成宝石
    public void Add()
    {
        Debug.Log("合成了宝石");
        level1.SetActive(false);
        level2.SetActive(true);
        canDrag = true;
        EventCenter.Ins.BroadCast((int)KTGMGemClient.EventType.AddCard);
    }

    public void SetTarget(GameObject target)
    {
        this.target = target;
    }

    bool isDraging;
    public bool IsDraging
    {
        get
        {
            return isDraging;
        }
    }
    Vector3 dragPos;//开始拖拽的临时变量
    public void OnDrag(PointerEventData eventData)
    {
        if (!canDrag)
        {
            return;
        }
        RectTransformUtility.ScreenPointToWorldPointInRectangle(rectTransform, eventData.position, eventData.enterEventCamera, out dragPos);
        //dragPos.z = 0;
        rectTransform.position = dragPos;
    }

    public void OnBeginDrag(PointerEventData eventData)
    {
        if (!canDrag)
        {
            return;
        }
        isDraging = true;
        tmpImage.raycastTarget = false;

    }

    public void OnEndDrag(PointerEventData eventData)
    {
        if (!canDrag)
        {
            return;
        }

        isDraging = false;
        if (target != null)
        {
            //生成一个2级的火焰塔
            Debug.Log("生成一个2级的火焰塔");
            EventCenter.Ins.BroadCast((int)KTGMGemClient.EventType.CreateFireLv2);
            gameObject.SetActive(false);
            target.GetComponent<Image>().sprite = tmpImage.sprite;
        }
        else
        {
            rectTransform.anchoredPosition = pos;
            tmpImage.raycastTarget = true;
        }
    }
}