InputPlugin.clear has a new argument skipQueue which is used to avoid clearing a Game Object twice. This, combined with the fix for 4463 means you will no longer get a Cannot read property 'dragState' error if you destroy a Game Object enabled for drag where another draggable object exists. Fix phaserjs#4228

Author: photonstorm

CHANGELOG.md

@@ -166,6 +166,7 @@ Notes:
 * Changing any aspect of a Text object, such as the font size or content, wouldn't update its `hitArea` if it had been enabled for input, causing it to carry on using the old hit area size. Now, as long as the Text was created _without_ a custom hitArea, the hitArea size will be changed to match the new texture size on update. If you have provided your own custom hitArea shape, you need to modify it when the Text changes size yourself. Fix #4456 (thanks @thanh-taro and @rexrainbow)
 * `Camera.clearRenderToTexture` will check to see if the Scene is available before proceeding, avoiding potential errors when a Camera is destroyed multiple times during a Scene shutdown.
 * Destroying a Game object during its `pointerup` event handler on a touch device will no longer cause `Uncaught TypeError: Cannot read property 'localX' of undefined`. All InputPlugin process handlers now check to see if the Game Object has been destroyed at any stage and abort if it has. Fix #4463 (thanks @PatrickSachs)
+* `InputPlugin.clear` has a new argument `skipQueue` which is used to avoid clearing a Game Object twice. This, combined with the fix for 4463 means you will no longer get a `Cannot read property 'dragState'` error if you destroy a Game Object enabled for drag where another draggable object exists. Fix #4228 (thanks @YannCaron)
 
 ### Examples, Documentation and TypeScript
 

src/input/InputPlugin.js

@@ -494,7 +494,7 @@ var InputPlugin = new Class({
             {
                 current.splice(index, 1);
 
-                this.clear(gameObject);
+                this.clear(gameObject, true);
             }
         }
 
@@ -668,11 +668,14 @@ var InputPlugin = new Class({
      * @since 3.0.0
      *
      * @param {Phaser.GameObjects.GameObject} gameObject - The Game Object that will have its Interactive Object removed.
+     * @param {boolean} [skipQueue=false] - Skip adding this Game Object into the removal queue?
      *
      * @return {Phaser.GameObjects.GameObject} The Game Object that had its Interactive Object removed.
      */
-    clear: function (gameObject)
+    clear: function (gameObject, skipQueue)
     {
+        if (skipQueue === undefined) { skipQueue = false; }
+
         var input = gameObject.input;
 
         // If GameObject.input already cleared from higher class
@@ -681,7 +684,10 @@ var InputPlugin = new Class({
             return;
         }
 
-        this.queueForRemoval(gameObject);
+        if (!skipQueue)
+        {
+            this.queueForRemoval(gameObject);
+        }
 
         input.gameObject = undefined;
         input.target = undefined;