feat: Add destroy fade function

Author: jcs090218

Assets/JCSUnity/Scripts/Events/Destroy/JCS_DestroyObjectWithTime.cs

@@ -99,6 +99,21 @@ public JCS_FadeObject FirstFadeObject()
             return null;
         }
 
+        /// <summary>
+        /// Destroy game object by using fade out.
+        /// </summary>
+        public void DestroyFade()
+        {
+            float fadeTime = mDestroyTime - mFadeTime;
+
+            // 防止重新撥放.
+            if (mTimer < fadeTime)
+            {
+                // 立馬開始 fade 消失.
+                mTimer = fadeTime;
+            }
+        }
+
         /// <summary>
         /// Fade out for all the fade objects in list.
         /// </summary>

docs/ScriptReference/Events/Destroy/JCS_DestroyObjectWithTime.md

@@ -15,6 +15,7 @@ Destroy the game object by time.
 
 ## Functions
 
-| Name            | Description                     |
-|:----------------|:--------------------------------|
-| FirstFadeObject | Retrieve the first fade object. |
+| Name            | Description                            |
+|:----------------|:---------------------------------------|
+| FirstFadeObject | Retrieve the first fade object.        |
+| DestroyFade     | Destroy game object by using fade out. |