fix: resolve Next/Previous step and UI skipping bugs

Assets/Scripts/Interaction/TouchPositionHandler.cs

@@ -16,7 +16,6 @@ public class TouchPositionHandler : MonoBehaviour
     private void Start()
     {
         _meshRenderer = GetComponent<MeshRenderer>();
-        StartCoroutine(BlinkMesh());
     }
 
     private void OnEnable()
@@ -32,19 +31,29 @@ public class TouchPositionHandler : MonoBehaviour
                 var c = mat.GetColor("_MainColor");
                 c.a = 0f;
                 mat.SetColor("_MainColor", c);
+                
+                // 同步赋值统一的描边宽度，否则可能会太细导致看不见闪动
+                if (mat.HasProperty("_OutlineWidth"))
+                {
+                    mat.SetFloat("_OutlineWidth", OutlineConfig.Width);
+                }
             }
         }
-        StopAllCoroutines();
-        StartCoroutine(BlinkMesh());
     }
 
     private System.Collections.IEnumerator BlinkMesh()
     {
-        while (true)
-        {
-            if (_meshRenderer != null) _meshRenderer.enabled = !_meshRenderer.enabled;
-            yield return new WaitForSeconds(0.4f);
-        }
+        yield break;
+    }
+
+    public bool CanBeClicked()
+    {
+        return gameObject.activeInHierarchy && _meshRenderer != null && _meshRenderer.enabled;
+    }
+
+    public void PerformClick()
+    {
+        OnMouseDown();
     }
 
     private void OnMouseDown()
@@ -92,7 +101,6 @@ public class TouchPositionHandler : MonoBehaviour
             }
         }
 
-        StopAllCoroutines();
         if (_meshRenderer != null) _meshRenderer.enabled = false;
 
         gameObject.SetActive(false);