Oops, we need to be able to add and remove observers.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3831 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/jme/camera/CameraHandler.java

@@ -119,6 +119,22 @@ public class CameraHandler
         return (_camera.getLocation().z - _minZ) / (_maxZ - _minZ);
     }
 
+    /**
+     * Adds a camera path observer.
+     */
+    public void addCameraObserver (CameraPath.Observer camobs)
+    {
+        _campathobs.add(camobs);
+    }
+
+    /**
+     * Removes a camera path observer.
+     */
+    public void removeCameraObserver (CameraPath.Observer camobs)
+    {
+        _campathobs.remove(camobs);
+    }
+
     /**
      * Starts the camera moving along a path which will be updated every tick
      * until it is complete.
@@ -328,8 +344,7 @@ public class CameraHandler
             _path = path;
         }
         public boolean apply (Object observer) {
-            ((CameraPath.Observer)observer).pathCompleted(_path);
-            return true;
+            return ((CameraPath.Observer)observer).pathCompleted(_path);
         }
         protected CameraPath _path;
     }

src/java/com/threerings/jme/camera/CameraPath.java

@@ -36,8 +36,11 @@ public abstract class CameraPath
          * path was set before this path completed).
          *
          * @param path the path that was completed.
+         *
+         * @return true if the observer should remain in the list, false if it
+         * should be removed following this notification.
          */
-        public void pathCompleted (CameraPath path);
+        public boolean pathCompleted (CameraPath path);
     }
 
     /**