61 lines
1.4 KiB
C#
61 lines
1.4 KiB
C#
using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.UI;
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public class DraggableUI : MonoBehaviour, IDragHandler, IPointerDownHandler
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{
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private RectTransform rectTransform;
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private Canvas canvas;
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public RectTransform target;
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public Button button;
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public bool isDone = false;
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private bool isLocked = false;
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private void Awake()
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{
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rectTransform = GetComponent<RectTransform>();
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canvas = GetComponentInParent<Canvas>();
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LockDrag();
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}
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public void OnPointerDown(PointerEventData eventData)
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{
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// 这里可以添加按下时的逻辑，比如记录初始位置
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}
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public void OnDrag(PointerEventData eventData)
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{
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if (isLocked) return;
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Vector3 screenPosition = new Vector3(eventData.position.x, eventData.position.y,
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Camera.main.WorldToScreenPoint(transform.position).z);
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Vector3 move = Camera.main.ScreenToWorldPoint(screenPosition);
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move.z = transform.position.z;
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transform.position = move;
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}
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void Update()
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{
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float distance = Vector3.Distance(transform.position, target.position);
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if (distance <= 1 && !isLocked)
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{
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button.interactable=true;
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}
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else
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{
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button.interactable=false;
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}
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}
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public void LockDrag()
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{
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isLocked = true;
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}
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public void UnlockDrag()
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{
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isLocked = false;
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}
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} |