83 lines
2.2 KiB
C#
83 lines
2.2 KiB
C#
using UnityEngine;
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using UnityEngine.EventSystems;
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public class CursorManager : MonoBehaviour
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{
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public static CursorManager Instance;
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public Texture2D defaultCursor; // 默认光标
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public Texture2D hoverCursor; // 悬停光标
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private GameObject lastHoveredObject;
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private void Awake()
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{
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if (Instance == null)
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{
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Instance = this;
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DontDestroyOnLoad(gameObject);
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}
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else
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{
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Destroy(gameObject);
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}
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}
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private void Update()
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{
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// 检测鼠标指向的物体
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if (EventSystem.current.IsPointerOverGameObject())
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{
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PointerEventData pointerData = new PointerEventData(EventSystem.current)
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{
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position = Input.mousePosition
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};
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// 获取指针下的对象
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var results = new System.Collections.Generic.List<RaycastResult>();
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EventSystem.current.RaycastAll(pointerData, results);
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if (results.Count > 0)
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{
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GameObject hoveredObject = results[0].gameObject;
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// 判断是否为新的悬停物体，且是否实现了IPointer接口
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if (hoveredObject != lastHoveredObject &&
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(hoveredObject.GetComponent<IPointerEnterHandler>() != null ||
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hoveredObject.GetComponent<IPointerClickHandler>() != null ||
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hoveredObject.GetComponent<IPointerDownHandler>() != null))
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{
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Cursor.SetCursor(hoverCursor, Vector2.zero, CursorMode.Auto);
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lastHoveredObject = hoveredObject;
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}
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}
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else
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{
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ResetCursor();
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}
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}
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else
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{
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ResetCursor();
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}
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}
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private void ResetCursor()
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{
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if (lastHoveredObject != null)
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{
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Cursor.SetCursor(defaultCursor, Vector2.zero, CursorMode.Auto);
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lastHoveredObject = null;
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}
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}
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public void SetHover()
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{
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Cursor.SetCursor(hoverCursor, Vector2.zero, CursorMode.Auto);
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}
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public void SetNormal()
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{
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Cursor.SetCursor(defaultCursor, Vector2.zero, CursorMode.Auto);
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}
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} |