remove can take an array of cameras and also no longer needs total to be > 0

Author: photonstorm

CHANGELOG.md

@@ -24,6 +24,8 @@
 * `CameraManager.addExisting` no longer needs to be passed a Camera that already exists in the pool (as the pool has been removed), meaning you can now create your own Cameras and pass them to `addExisting` and have them treated as normal cameras and not be ignored by the manager. They are also assigned a proper ID when added.
 * `CameraManager.addExisting` has a new boolean argument `makeMain` which will make the new camera the main one.
 * `CameraManager.getTotal` is a new method that will return the total number of Cameras being managed, with an optional `isVisible` argument, that only counts visible cameras if set.
+* `CameraManager.remove` can now take an array of cameras to be removed from the manager, as well as a single camera.
+* `CameraManager.remove` would previously not allow you to remove a camera if it meant there would be no cameras left in the Camera Manager. This restriction has been removed. A Camera Manager can now run even with zero cameras. Your game obviously won't display anything, but it's still now possible.
 
 ### New Features
 

src/cameras/2d/CameraManager.js

@@ -492,7 +492,7 @@ var CameraManager = new Class({
     },
 
     /**
-     * Removes the given Camera from this Camera Manager.
+     * Removes the given Camera, or an array of Cameras, from this Camera Manager.
      * 
      * If found in the Camera Manager it will be immediately removed from the local cameras array.
      * If also currently the 'main' camera, 'main' will be reset to be camera 0.
@@ -503,21 +503,32 @@ var CameraManager = new Class({
      * @method Phaser.Cameras.Scene2D.CameraManager#remove
      * @since 3.0.0
      *
-     * @param {Phaser.Cameras.Scene2D.Camera} camera - The Camera to be removed from this Camera Manager.
+     * @param {(Phaser.Cameras.Scene2D.Camera|Phaser.Cameras.Scene2D.Camera[])} camera - The Camera, or an array of Cameras, to be removed from this Camera Manager.
      */
     remove: function (camera)
     {
-        var cameraIndex = this.cameras.indexOf(camera);
+        if (!Array.isArray(camera))
+        {
+            camera = [ camera ];
+        }
 
-        if (cameraIndex >= 0 && this.cameras.length > 1)
+        var cameras = this.cameras;
+
+        for (var i = 0; i < camera.length; i++)
         {
-            this.cameras.splice(cameraIndex, 1);
+            var index = cameras.indexOf(camera);
 
-            if (this.main === camera)
+            if (index !== -1)
             {
-                this.main = this.cameras[0];
+                cameras.splice(index, 1);
+    
             }
         }
+
+        if (!this.main)
+        {
+            this.main = this.cameras[0];
+        }
     },
 
     /**