diff --git a/src/java/com/threerings/media/tile/TileManager.java b/src/java/com/threerings/media/tile/TileManager.java
index fd8e0530b..40810a1ec 100644
--- a/src/java/com/threerings/media/tile/TileManager.java
+++ b/src/java/com/threerings/media/tile/TileManager.java
@@ -1,5 +1,5 @@
 //
-// $Id: TileManager.java,v 1.2 2001/07/14 00:21:24 shaper Exp $
+// $Id: TileManager.java,v 1.3 2001/07/16 18:59:31 shaper Exp $
 
 package com.threerings.cocktail.miso.tile;
 
@@ -20,42 +20,49 @@ public class TileManager
     {
 	_tsmgr = tsmgr;
     }
-    
-    public Tile getTile (String setName, String tileName)
+
+    public int getNumTilesInSet (int tsid)
     {
-	return new Tile(0, 0);
+	TileSet tset = _tsmgr.getTileSet(tsid);
+	if (tset == null) return -1;
+	return tset.getNumTiles();
     }
 
-    public Tile getTile (short tsid, short tid)
+    public String[] getTileSetNames ()
+    {
+	return _tsmgr.getTileSetNames();
+    }
+
+    public Tile getTile (int tsid, int tid)
     {
 	// the fully unique tile id is the conjoined tile set and tile id
 	int utid = tsid << 16 | tid;
 
 	// look the tile up in our hash
 	Tile tile = (Tile) _tiles.get(utid);
-	if (tile == null) {
-
-	    // retrieve the tileset containing the tile
-	    TileSet tset = _tsmgr.getTileSet(tsid);
-	    Log.info("Retrieved tileset [tsid=" + tsid + ", tid=" +
-		     tid + ", tset=" + tset + "].");
-
-	    // retrieve the tile image from the tileset
-	    tile = new Tile(tsid, tid);
-	    tile.img = tset.getTileImage(tid);
-
-	    _tiles.put(utid, tile);
+	if (tile != null) {
+//  	    Log.info("Retrieved tile from cache [tsid=" + tsid +
+//  		     ", tid=" + tid + "].");
+	    return tile;
 	}
 
+	// retrieve the tileset containing the tile
+	TileSet tset = _tsmgr.getTileSet(tsid);
+
+	// retrieve the tile image from the tileset
+	tile = new Tile(tsid, tid);
+	tile.img = tset.getTileImage(tid);
+
+	_tiles.put(utid, tile);
+
+	Log.info("Loaded tile into cache [tsid="+tsid+", tid="+tid+"].");
+
 	return tile;
     }
 
     // mapping from (tsid << 16 | tid) to tile objects
     protected IntMap _tiles = new IntMap();
 
-    // mapping from tileset ids to tileset objects
-    protected IntMap _tilesets = new IntMap();
-
     // our tile set manager
     protected TileSetManager _tsmgr;
 }
diff --git a/src/java/com/threerings/media/tile/TileSet.java b/src/java/com/threerings/media/tile/TileSet.java
index 9eefddfd3..544ca4043 100644
--- a/src/java/com/threerings/media/tile/TileSet.java
+++ b/src/java/com/threerings/media/tile/TileSet.java
@@ -1,5 +1,5 @@
 //
-// $Id: TileSet.java,v 1.3 2001/07/16 00:45:07 shaper Exp $
+// $Id: TileSet.java,v 1.4 2001/07/16 18:59:31 shaper Exp $
 
 package com.threerings.cocktail.miso.tile;
 
@@ -44,6 +44,25 @@ public class TileSet
 	// get the row height and tile count for each row
 	_rowHeight = config.getValue(PREFIX + CONF_ROWHEIGHT, (int[])null);
 	_tileCount = config.getValue(PREFIX + CONF_TILECOUNT, (int[])null);
+
+	// determine the total number of tiles in the set
+	for (int ii = 0; ii < _tileCount.length; ii++)
+	    _numTiles += _tileCount[ii];
+    }
+
+    public int getId ()
+    {
+	return _tsid;
+    }
+
+    public String getName ()
+    {
+	return _name;
+    }
+
+    public int getNumTiles ()
+    {
+	return _numTiles;
     }
 
     /**
@@ -64,7 +83,7 @@ public class TileSet
 	// find the row number containing the sought-after tile
 	int ridx, tcount, ty, tx;
 	ridx = tcount = ty = tx = 0;
-	while ((tcount += _tileCount[ridx]) < tid) {
+	while ((tcount += _tileCount[ridx]) < tid + 1) {
 	    ty += _rowHeight[ridx++];
 	}
 
@@ -72,9 +91,9 @@ public class TileSet
 	int xidx = tid - (tcount - _tileCount[ridx]);
 	tx = Tile.WIDTH * xidx;
 
-	Log.info("Retrieving tile image [tid=" + tid + ", ridx=" +
-		 ridx + ", xidx=" + xidx + ", tx=" + tx +
-		 ", ty=" + ty + "].");
+//    	Log.info("Retrieving tile image [tid=" + tid + ", ridx=" +
+//    		 ridx + ", xidx=" + xidx + ", tx=" + tx +
+//    		 ", ty=" + ty + "].");
 
 	// crop the tile-sized image chunk from the full image
 	return ImageManager.getImageCropped(_imgTiles, tx, ty,
@@ -91,6 +110,7 @@ public class TileSet
 	buf.append("[name=").append(_name);
 	buf.append(", file=").append(_file);
 	buf.append(", tsid=").append(_tsid);
+	buf.append(", numtiles=").append(_numTiles);
 
 	buf.append(", rowheight={");
 	for (int ii = 0; ii < _rowHeight.length; ii++) {
@@ -119,6 +139,7 @@ public class TileSet
     protected int _tsid;         // the tileset unique identifier
     protected int _rowHeight[];  // the height of each row in pixels
     protected int _tileCount[];  // the number of tiles in each row
+    protected int _numTiles;     // the total number of tiles
 
     protected Image _imgTiles;
 }
diff --git a/src/java/com/threerings/media/tile/TileSetManager.java b/src/java/com/threerings/media/tile/TileSetManager.java
index 85e323f44..6ac04fb30 100644
--- a/src/java/com/threerings/media/tile/TileSetManager.java
+++ b/src/java/com/threerings/media/tile/TileSetManager.java
@@ -1,9 +1,27 @@
 //
-// $Id: TileSetManager.java,v 1.1 2001/07/12 22:38:03 shaper Exp $
+// $Id: TileSetManager.java,v 1.2 2001/07/16 18:59:31 shaper Exp $
 
 package com.threerings.cocktail.miso.tile;
 
 public interface TileSetManager
 {
+    /**
+     * Return the tileset object corresponding to the specified tileset id.
+     */
     public TileSet getTileSet (int tsid);
+
+    /**
+     * Return a String array of all tileset names.
+     */
+    public String[] getTileSetNames ();
+
+    /**
+     * Return the tileset id associated with the named tileset.
+     */
+    public int getTileSetId (String name);
+
+    /**
+     * Return the total number of tilesets.
+     */
+    public int getNumTileSets ();
 }
diff --git a/src/java/com/threerings/media/tile/TileSetManagerImpl.java b/src/java/com/threerings/media/tile/TileSetManagerImpl.java
new file mode 100644
index 000000000..b98102966
--- /dev/null
+++ b/src/java/com/threerings/media/tile/TileSetManagerImpl.java
@@ -0,0 +1,59 @@
+//
+// $Id: TileSetManagerImpl.java,v 1.1 2001/07/16 18:59:31 shaper Exp $
+
+package com.threerings.cocktail.miso.tile;
+
+import com.samskivert.util.Config;
+import com.samskivert.util.IntMap;
+
+import java.util.Enumeration;
+
+public class TileSetManagerImpl implements TileSetManager
+{
+    public TileSetManagerImpl (Config config)
+    {
+	_config = config;
+    }
+
+    public TileSet getTileSet (int tsid)
+    {
+	TileSet tset = (TileSet)_tilesets.get(tsid);
+	if (tset != null) return tset;
+
+	_tilesets.put(tsid, tset = new TileSet(_config, tsid));
+	return tset;
+    }
+
+    public String[] getTileSetNames ()
+    {
+	int size = _tilesets.size();
+	if (size == 0) return null;
+
+	String[] names = new String[size];
+	Enumeration sets = _tilesets.elements();
+	for (int ii = 0; ii < size; ii++) {
+	    names[ii] = ((TileSet)sets.nextElement()).getName();
+	}
+
+	return names;
+    }
+
+    public int getTileSetId (String name)
+    {
+	Enumeration sets = _tilesets.elements();
+	while (sets.hasMoreElements()) {
+	    TileSet tset = (TileSet)sets.nextElement();
+	    if (tset.getName().equals(name)) return tset.getId();
+	}
+
+	return -1;
+    }
+
+    public int getNumTileSets ()
+    {
+	return _tilesets.size();
+    }
+
+    protected Config _config;
+    protected IntMap _tilesets = new IntMap();
+}
diff --git a/src/java/com/threerings/miso/tile/CompiledTileSetManager.java b/src/java/com/threerings/miso/tile/CompiledTileSetManager.java
index 9ca56a458..677bd4419 100644
--- a/src/java/com/threerings/miso/tile/CompiledTileSetManager.java
+++ b/src/java/com/threerings/miso/tile/CompiledTileSetManager.java
@@ -1,13 +1,14 @@
 //
-// $Id: CompiledTileSetManager.java,v 1.1 2001/07/12 22:38:03 shaper Exp $
+// $Id: CompiledTileSetManager.java,v 1.2 2001/07/16 18:59:31 shaper Exp $
 
 package com.threerings.cocktail.miso.tile;
 
-public class CompiledTileSetManager implements TileSetManager
+import com.samskivert.util.Config;
+
+public class CompiledTileSetManager extends TileSetManagerImpl
 {
-    public TileSet getTileSet (int tsid)
+    public CompiledTileSetManager (Config config)
     {
-	// TBD
-	return null;
+	super(config);
     }
 }
diff --git a/src/java/com/threerings/miso/tile/EditableTileSetManager.java b/src/java/com/threerings/miso/tile/EditableTileSetManager.java
index c6cb2c817..8eeec951d 100644
--- a/src/java/com/threerings/miso/tile/EditableTileSetManager.java
+++ b/src/java/com/threerings/miso/tile/EditableTileSetManager.java
@@ -1,27 +1,14 @@
 //
-// $Id: EditableTileSetManager.java,v 1.1 2001/07/14 00:02:47 shaper Exp $
+// $Id: EditableTileSetManager.java,v 1.2 2001/07/16 18:59:31 shaper Exp $
 
 package com.threerings.cocktail.miso.tile;
 
 import com.samskivert.util.Config;
-import com.samskivert.util.IntMap;
 
-public class EditableTileSetManager implements TileSetManager
+public class EditableTileSetManager extends TileSetManagerImpl
 {
     public EditableTileSetManager (Config config)
     {
-	_config = config;
+	super(config);
     }
-
-    public TileSet getTileSet (int tsid)
-    {
-	TileSet tset = (TileSet)_tilesets.get(tsid);
-	if (tset != null) return tset;
-
-	_tilesets.put(tsid, tset = new TileSet(_config, tsid));
-	return tset;
-    }
-
-    protected Config _config;
-    protected IntMap _tilesets = new IntMap();
 }