装备系统完结，修复并加入很多

Assets/_eqpmtSys/esPrefab.cs

@@ -1,8 +1,134 @@
 using UnityEngine;
 using UnityEngine.UI;
+using UnityEngine.EventSystems;
 
-public class esPrefab : MonoBehaviour
+public class esPrefab : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
 {
     public Image esIcon;
     public Text esName;
+
+    private int skillGroupId;
+    private GameObject descriptionPrefab;
+    private RectTransform descriptionRoot;
+    private GameObject spawnedDescription;
+    private RectTransform rectTransform;
+    private Canvas rootCanvas;
+    private Camera uiCamera;
+    private Vector2 descriptionOffset = new Vector2(20f, 30f);
+
+    private void Awake()
+    {
+        rectTransform = transform as RectTransform;
+        rootCanvas = GetComponentInParent<Canvas>();
+        if (rootCanvas != null && rootCanvas.renderMode != RenderMode.ScreenSpaceOverlay)
+        {
+            uiCamera = rootCanvas.worldCamera;
+        }
+    }
+
+    private void OnDisable()
+    {
+        DestroyDescription();
+    }
+
+    private void OnDestroy()
+    {
+        DestroyDescription();
+    }
+
+    public void BindSkillGroup(int groupId, string displayName, Sprite icon, GameObject desPrefab, RectTransform ownerRoot, Vector2 offset)
+    {
+        skillGroupId = Mathf.Max(0, groupId);
+        descriptionPrefab = desPrefab;
+        descriptionRoot = ownerRoot;
+        descriptionOffset = offset;
+
+        if (esName != null)
+        {
+            esName.text = displayName ?? string.Empty;
+        }
+
+        if (esIcon != null)
+        {
+            esIcon.sprite = icon;
+            esIcon.enabled = icon != null;
+        }
+    }
+
+    public void OnPointerEnter(PointerEventData eventData)
+    {
+        ShowDescription();
+    }
+
+    public void OnPointerExit(PointerEventData eventData)
+    {
+        DestroyDescription();
+    }
+
+    private void ShowDescription()
+    {
+        if (spawnedDescription != null || descriptionPrefab == null || descriptionRoot == null || skillGroupId <= 0)
+        {
+            return;
+        }
+
+        SkillGroup skillGroup = EquipmentSkillGroupLibrary.ResolveSkillGroup(skillGroupId);
+        if (skillGroup == null)
+        {
+            return;
+        }
+
+        spawnedDescription = Instantiate(descriptionPrefab, descriptionRoot);
+        spawnedDescription.SetActive(true);
+        spawnedDescription.transform.SetAsLastSibling();
+
+        esDesPrefab description = spawnedDescription.GetComponent<esDesPrefab>();
+        if (description != null)
+        {
+            description.Bind(skillGroup.groupName, skillGroup.groupIcon, skillGroup.skillDescriptionsText);
+        }
+
+        PositionDescription(spawnedDescription.transform as RectTransform);
+    }
+
+    private void PositionDescription(RectTransform descriptionRect)
+    {
+        if (descriptionRect == null || rectTransform == null || descriptionRoot == null)
+        {
+            return;
+        }
+
+        Vector3[] corners = new Vector3[4];
+        rectTransform.GetWorldCorners(corners);
+        Vector3 rightCenterWorld = (corners[2] + corners[3]) * 0.5f;
+        Vector2 screenPoint = RectTransformUtility.WorldToScreenPoint(uiCamera, rightCenterWorld);
+        if (!RectTransformUtility.ScreenPointToLocalPointInRectangle(descriptionRoot, screenPoint, uiCamera, out Vector2 localPoint))
+        {
+            return;
+        }
+
+        descriptionRect.anchorMin = new Vector2(0f, 1f);
+        descriptionRect.anchorMax = new Vector2(0f, 1f);
+        descriptionRect.pivot = new Vector2(0f, 1f);
+        descriptionRect.anchoredPosition = localPoint + descriptionOffset;
+    }
+
+    private void DestroyDescription()
+    {
+        if (spawnedDescription == null)
+        {
+            return;
+        }
+
+        if (Application.isPlaying)
+        {
+            Destroy(spawnedDescription);
+        }
+        else
+        {
+            DestroyImmediate(spawnedDescription);
+        }
+
+        spawnedDescription = null;
+    }
 }