59 lines
1.6 KiB
C#
59 lines
1.6 KiB
C#
using System;
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using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.UI;
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using UnityEngine.UI.Extensions;
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using WI.UI;
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using static DrawLine;
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namespace XED.UI
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{
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public class UI_DragDrop : MonoBehaviour,IBeginDragHandler,IDragHandler,IEndDragHandler,IDropHandler
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{
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protected UI_DragDrop Clone;
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public float cloneAlpha=1f;
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public Action<UIBase, UIBase> OnDropItem;
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public virtual void OnBeginDrag(PointerEventData eventData)
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{
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CreateClone();
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}
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public virtual void Clear()
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{
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}
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UI_DragDrop CreateClone()
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{
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Clone = Instantiate(gameObject, gameObject.transform.parent).GetComponent<UI_DragDrop>();
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var CI = Clone.GetComponentsInChildren<Image>();
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foreach (var c in CI)
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{
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c.color = new Color(c.color.r, c.color.g, c.color.b, cloneAlpha);
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}
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return Clone;
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}
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public virtual void OnDrag(PointerEventData eventData)
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{
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Clone.transform.position = Input.mousePosition;
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}
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public virtual void OnEndDrag(PointerEventData eventData)
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{
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Destroy(Clone);
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}
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public virtual void OnDrop(PointerEventData eventData)
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{
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if (eventData.pointerDrag != null)
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{
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UI_DragDrop draggedItem = eventData.pointerDrag.GetComponent<UI_DragDrop>();
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if (draggedItem)
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{
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OnDropItem?.Invoke(gameObject.GetComponent<UIBase>(), draggedItem.GetComponent<UIBase>());
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}
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}
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}
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}
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}
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