More progress toward arbitrarily scrollable scenes. The IsoSceneView still

requests all objects in God's green earth, but we now have the necessary
structures for it to request new objects as they scroll (nearly) into view
and for it to abandon objects as they scroll (way) out of view.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1742 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/miso/tools/EditableMisoScene.java

@@ -1,5 +1,5 @@
 //
-// $Id: EditableMisoScene.java,v 1.17 2002/09/18 02:32:57 mdb Exp $
+// $Id: EditableMisoScene.java,v 1.18 2002/09/23 21:54:50 mdb Exp $
 
 package com.threerings.miso.scene.tools;
 
@@ -9,10 +9,11 @@ import com.threerings.media.tile.ObjectTile;
 import com.threerings.media.tile.Tile;
 import com.threerings.media.tile.TileUtil;
 
-import com.threerings.miso.tile.BaseTile;
-import com.threerings.miso.tile.BaseTileSet;
 import com.threerings.miso.scene.DisplayMisoScene;
 import com.threerings.miso.scene.MisoSceneModel;
+import com.threerings.miso.scene.SceneObject;
+import com.threerings.miso.tile.BaseTile;
+import com.threerings.miso.tile.BaseTileSet;
 
 /**
  * The editable Miso scene interface is used in the offline scene building
@@ -59,7 +60,7 @@ public interface EditableMisoScene
     public void setBaseTiles (Rectangle r, BaseTileSet set, int setId);
 
     /**
-     * Addds an object tile to this scene.
+     * Adds an object to this scene.
      *
      * @param x the object's origin x-coordinate.
      * @param y the object's origin y-coordinate.
@@ -67,14 +68,10 @@ public interface EditableMisoScene
      * @param fqTileId the fully-qualified tile id (@see
      * TileUtil#getFQTileId}) of the new default base tile.
      *
-     * @return the new object's index in the object list.
+     * @return the new scene object instance.
      */
-    public int addObjectTile (ObjectTile tile, int x, int y, int fqTileId);
-
-    /**
-     * Sets the action string for the specified object tile.
-     */
-    public void setObjectAction (int index, String action);
+    public SceneObject addSceneObject (
+        ObjectTile tile, int x, int y, int fqTileId);
 
     /**
      * Clears out the tile at the specified location in the base layer.
@@ -82,15 +79,9 @@ public interface EditableMisoScene
     public void clearBaseTile (int x, int y);
 
     /**
-     * Clears out the specified object tile at the specified coordinates
-     * from the object list.
+     * Removes the specified object from the scene.
      */
-    public void removeObjectTile (int index);
-
-    /**
-     * Clears the action string for the specified object tile.
-     */
-    public void clearObjectAction (int index);
+    public boolean removeSceneObject (SceneObject scobj);
 
     /**
      * Returns a reference to the miso scene model that reflects the