using System;
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.EventSystems;
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public class UIDragDropBehaviour : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler, IPointerEnterHandler
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{
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public static bool draging = false;
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public static int dragData = 0;
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[HideInInspector] public int data;
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const float dragDelay = 0.2f;
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bool m_AllowDragDrop = true;
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bool m_OnPress = false;
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bool m_AllowClick = false;
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float m_Time = 0.0f;
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public event Action<int> onClick;
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public void Init(int data)
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{
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this.data = data;
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}
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public void SetDragDropState(bool allow)
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{
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m_AllowDragDrop = allow;
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}
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public void OnPointerDown(PointerEventData eventData)
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{
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draging = false;
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m_AllowClick = true;
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m_Time = 0f;
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if (!m_AllowDragDrop)
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{
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return;
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}
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m_OnPress = true;
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}
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public void OnPointerEnter(PointerEventData eventData)
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{
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m_AllowClick = true;
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}
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public void OnPointerExit(PointerEventData eventData)
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{
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m_AllowClick = false;
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}
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public void OnPointerUp(PointerEventData eventData)
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{
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var position = Input.mousePosition;
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if (!draging && m_AllowClick)
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{
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if (onClick != null)
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{
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onClick(data);
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}
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}
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m_OnPress = false;
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}
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private void LateUpdate()
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{
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if (m_OnPress && !draging)
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{
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m_Time += Time.deltaTime;
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if (m_Time > dragDelay)
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{
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dragData = data;
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draging = true;
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m_Time = 0;
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m_OnPress = false;
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}
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}
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}
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}
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