Changed AddObjectUpdate to a more general ModifyObjectsUpdate and added a service call to delete an object.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3572 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/stage/client/StageSceneService.java

@@ -18,4 +18,10 @@ public interface StageSceneService extends InvocationService
      */
     public void addObject (Client client, ObjectInfo info,
                            ConfirmListener listener);
+    
+    /**
+     * Requests to remove the supplied object from the current scene.
+     */
+    public void removeObject (Client client, ObjectInfo info,
+                              ConfirmListener listener);
 }

src/java/com/threerings/stage/data/AddObjectUpdate.java

@@ -1,53 +0,0 @@
-//
-// $Id: AddObjectUpdate.java 15953 2004-06-11 23:40:47Z ray $
-
-package com.threerings.stage.data;
-
-import com.threerings.miso.data.ObjectInfo;
-
-import com.threerings.whirled.data.SceneModel;
-import com.threerings.whirled.data.SceneUpdate;
-
-/**
- * A scene update that is broadcast when an object has been added to a
- * scene.
- */
-public class AddObjectUpdate extends SceneUpdate
-{
-    /** The info on the object. */
-    public ObjectInfo info;
-
-    /** If non-null, a list of objects to remove from the scene. */
-    public ObjectInfo[] casualties;
-
-    /**
-     * Initializes this update with all necessary data.
-     *
-     * @param casualties optional, a list of objects to remove.
-     */
-    public void init (int targetId, int targetVersion, ObjectInfo info,
-                      ObjectInfo[] casualties)
-    {
-        init(targetId, targetVersion);
-        this.info = info;
-        this.casualties = casualties;
-    }
-
-    // documentation inherited
-    public void apply (SceneModel model)
-    {
-        super.apply(model);
-
-        StageMisoSceneModel mmodel = StageMisoSceneModel.getSceneModel(model);
-
-        // wipe out the objects that need to go
-        if (casualties != null) {
-            for (int ii = 0; ii < casualties.length; ii++) {
-                mmodel.removeObject(casualties[ii]);
-            }
-        }
-
-        // add the new object
-        mmodel.addObject(info);
-    }
-}

src/java/com/threerings/stage/data/ModifyObjectsUpdate.java

@@ -0,0 +1,60 @@
+//
+// $Id: AddObjectUpdate.java 15953 2004-06-11 23:40:47Z ray $
+
+package com.threerings.stage.data;
+
+import com.threerings.miso.data.ObjectInfo;
+
+import com.threerings.whirled.data.SceneModel;
+import com.threerings.whirled.data.SceneUpdate;
+
+/**
+ * A scene update that is broadcast when objects have been added to or removed
+ * from the scene.
+ */
+public class ModifyObjectsUpdate extends SceneUpdate
+{
+    /** The objects added to the scene (or <code>null</code> for none). */
+    public ObjectInfo[] added;
+    
+    /** The objects removed from the scene (or <code>null</code> for none). */
+    public ObjectInfo[] removed;
+    
+    /**
+     * Initializes this update with all necessary data.
+     *
+     * @param added the objects added to the scene, or <code>null</code> for
+     * none
+     * @param removed the objects removed from the scene, or <code>null</code>
+     * for none
+     */
+    public void init (int targetId, int targetVersion, ObjectInfo[] added,
+                      ObjectInfo[] removed)
+    {
+        init(targetId, targetVersion);
+        this.added = added;
+        this.removed = removed;
+    }
+
+    // documentation inherited
+    public void apply (SceneModel model)
+    {
+        super.apply(model);
+
+        StageMisoSceneModel mmodel = StageMisoSceneModel.getSceneModel(model);
+
+        // wipe out the objects that need to go
+        if (removed != null) {
+            for (int ii = 0; ii < removed.length; ii++) {
+                mmodel.removeObject(removed[ii]);
+            }
+        }
+
+        // add the new objects
+        if (added != null) {
+            for (int ii = 0; ii < added.length; ii++) {
+                mmodel.addObject(added[ii]);
+            }
+        }
+    }
+}

src/java/com/threerings/stage/data/StageSceneMarshaller.java

@@ -51,4 +51,17 @@ public class StageSceneMarshaller extends InvocationMarshaller
         });
     }
 
+    /** The method id used to dispatch {@link #removeObject} requests. */
+    public static final int REMOVE_OBJECT = 2;
+
+    // documentation inherited from interface
+    public void removeObject (Client arg1, ObjectInfo arg2, InvocationService.ConfirmListener arg3)
+    {
+        InvocationMarshaller.ConfirmMarshaller listener3 = new InvocationMarshaller.ConfirmMarshaller();
+        listener3.listener = arg3;
+        sendRequest(arg1, REMOVE_OBJECT, new Object[] {
+            arg2, listener3
+        });
+    }
+
 }

src/java/com/threerings/stage/server/StageSceneDispatcher.java

@@ -64,6 +64,13 @@ public class StageSceneDispatcher extends InvocationDispatcher
             );
             return;
 
+        case StageSceneMarshaller.REMOVE_OBJECT:
+            ((StageSceneProvider)provider).removeObject(
+                source,
+                (ObjectInfo)args[0], (InvocationService.ConfirmListener)args[1]
+            );
+            return;
+
         default:
             super.dispatchRequest(source, methodId, args);
         }

src/java/com/threerings/stage/server/StageSceneManager.java

@@ -34,8 +34,8 @@ import com.threerings.whirled.spot.server.SpotSceneManager;
 
 import com.threerings.stage.Log;
 import com.threerings.stage.client.StageSceneService;
-import com.threerings.stage.data.AddObjectUpdate;
 import com.threerings.stage.data.DefaultColorUpdate;
+import com.threerings.stage.data.ModifyObjectsUpdate;
 import com.threerings.stage.data.StageCodes;
 import com.threerings.stage.data.StageMisoSceneModel;
 import com.threerings.stage.data.StageOccupantInfo;
@@ -110,11 +110,11 @@ public class StageSceneManager extends SpotSceneManager
 
         // create our scene update which will be stored in the database
         // and used to efficiently update clients
-        final AddObjectUpdate update = new AddObjectUpdate();
-        update.init(_sscene.getId(), _sscene.getVersion(), info,
-            killOverlap ? lappers : null);
+        final ModifyObjectsUpdate update = new ModifyObjectsUpdate();
+        update.init(_sscene.getId(), _sscene.getVersion(),
+            new ObjectInfo[] { info }, killOverlap ? lappers : null);
 
-        Log.info("Adding object '" + update + ".");
+        Log.info("Modifying objects '" + update + ".");
         recordUpdate(update, true);
 
         return true;
@@ -166,15 +166,36 @@ public class StageSceneManager extends SpotSceneManager
             throw new InvocationException(err);
         }
 
-        boolean allowOverlap =
-            (user.checkAccess(StageCodes.MODIFY_SCENE_ACCESS, _sscene) == null);
-        if (addObject(info, false, allowOverlap)) {
+        if (addObject(info, false, true)) {
             listener.requestProcessed();
         } else {
             listener.requestFailed(StageCodes.ERR_NO_OVERLAP);
         }
     }
 
+    // documentation inherited from interface
+    public void removeObject (ClientObject caller, ObjectInfo info,
+                              StageSceneService.ConfirmListener listener)
+        throws InvocationException
+    {
+        BodyObject user = (BodyObject)caller;
+        String err = user.checkAccess(StageCodes.MODIFY_SCENE_ACCESS, _sscene);
+        if (err != null) {
+            throw new InvocationException(err);
+        }
+        
+        // create our scene update which will be stored in the database
+        // and used to efficiently update clients
+        ModifyObjectsUpdate update = new ModifyObjectsUpdate();
+        update.init(_sscene.getId(), _sscene.getVersion(),
+            null, new ObjectInfo[] { info });
+
+        Log.info("Modifying objects '" + update + ".");
+        recordUpdate(update, true);
+        
+        listener.requestProcessed();
+    }
+    
     // documentation inherited
     protected void gotSceneData ()
     {

src/java/com/threerings/stage/server/StageSceneProvider.java

@@ -22,4 +22,11 @@ public interface StageSceneProvider extends InvocationProvider
     public void addObject (ClientObject caller, ObjectInfo info,
                            StageSceneService.ConfirmListener listener)
         throws InvocationException;
+    
+    /**
+     * Handles a {@link StageSceneService#removeObject} request.
+     */
+    public void removeObject (ClientObject caller, ObjectInfo info,
+                              StageSceneService.ConfirmListener listener)
+        throws InvocationException;
 }