Initial work on reading and writing scenes to XML files.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@113 542714f4-19e9-0310-aa3c-eee0fc999fb1

rsrc/config/miso/miso.properties

@@ -1,14 +1,14 @@
 #
-# $Id: miso.properties,v 1.7 2001/07/21 01:51:09 shaper Exp $
+# $Id: miso.properties,v 1.8 2001/07/23 22:31:47 shaper Exp $
 #
 # Initial test config values for miso development.
 #
 
-# the tileset manager class to use for working with tilesets
+# the tileset manager class for working with tilesets
 tilesetmgr = com.threerings.miso.tile.EditableTileSetManager
 
-# the scene manager class to use for working with scenes
+# the scene manager class for working with scenes
-scenemanager = com.threerings.miso.scene.CompiledSceneManager
+scenemgr = com.threerings.miso.scene.EditableSceneManager
 
 # the tileset descriptions
 tilesets = rsrc/config/miso/tilesets.xml

src/java/com/threerings/media/tile/TileManager.java

@@ -1,5 +1,5 @@
 //
-// $Id: TileManager.java,v 1.10 2001/07/23 18:52:51 shaper Exp $
+// $Id: TileManager.java,v 1.11 2001/07/23 22:31:48 shaper Exp $
 
 package com.threerings.miso.tile;
 
@@ -20,9 +20,9 @@ public class TileManager
     /**
      * Initialize the tile manager with the given TileSetManager object.
      */
-    public TileManager (TileSetManager tsmgr)
+    public TileManager (TileSetManager tilesetmgr)
     {
-	_tsmgr = tsmgr;
+	_tilesetmgr = tilesetmgr;
     }
 
     /**
@@ -43,7 +43,7 @@ public class TileManager
 
 	// retrieve the tile image from the tileset
 	tile = new Tile(tsid, tid);
-	if ((tile.img = _tsmgr.getTileImage(tsid, tid)) == null) {
+	if ((tile.img = _tilesetmgr.getTileImage(tsid, tid)) == null) {
 	    Log.warning("Null tile image [tsid="+tsid+", tid="+tid+"].");
 	}
 	tile.height = (short)((BufferedImage)tile.img).getHeight();
@@ -60,12 +60,12 @@ public class TileManager
      */
     public TileSetManager getTileSetManager ()
     {
-	return _tsmgr;
+	return _tilesetmgr;
     }
 
     /** Cache of tiles that have been requested thus far. */
     protected IntMap _tiles = new IntMap();
 
-    /** Our tileset manager. */
+    /** The tileset manager. */
-    protected TileSetManager _tsmgr;
+    protected TileSetManager _tilesetmgr;
 }

src/java/com/threerings/media/tile/TileSetManager.java

@@ -1,5 +1,5 @@
 //
-// $Id: TileSetManager.java,v 1.8 2001/07/23 18:52:51 shaper Exp $
+// $Id: TileSetManager.java,v 1.9 2001/07/23 22:31:48 shaper Exp $
 
 package com.threerings.miso.tile;
 
@@ -8,30 +8,54 @@ import com.threerings.media.ImageManager;
 import java.awt.Image;
 import java.util.ArrayList;
 
+/**
+ * The TileSetManager provides tileset management functionality
+ * intended for use by the TileManager.  It provides facilities for
+ * obtaining information about individual tilesets, retrieving an list
+ * of all tilesets available, and retrieving the image associated with
+ * a particular tile in a set.
+ */
 public interface TileSetManager
 {
     /**
-     * Return the total number of tiles in the specified tileset.
+     * Return the total number of tiles in the specified tileset or -1
+     * if the tileset is not found.
+     *
+     * @param tsid the tileset identifier.
+     * @return the number of tiles.
      */
     public int getNumTilesInSet (int tsid);
 
     /**
-     * Return a list of all tilesets available for use.
+     * Return an ArrayList containing all TileSet objects available.
+     *
+     * @return the list of tilesets.
      */
     public ArrayList getAllTileSets ();
 
     /**
-     * Return the tileset object corresponding to the specified tileset id.
+     * Return the tileset object corresponding to the specified
+     * tileset id, or null if the tileset is not found.
+     *
+     * @param tsid the tileset identifier.
+     * @return the tileset object.
      */
     public TileSet getTileSet (int tsid);
 
     /**
      * Return the image corresponding to the specified tileset and tile id.
+     *
+     * @param tsid the tileset identifier.
+     * @param tid the tile identifier.
+     *
+     * @return the tile image.
      */
     public Image getTileImage (int tsid, int tid);
 
     /**
-     * Return the total number of tilesets.
+     * Return the total number of tilesets available for use.
+     *
+     * @return the number of tilesets.
      */
     public int getNumTileSets ();
 }

src/java/com/threerings/media/tile/TileSetManagerImpl.java

@@ -1,5 +1,5 @@
 //
-// $Id: TileSetManagerImpl.java,v 1.7 2001/07/23 18:52:51 shaper Exp $
+// $Id: TileSetManagerImpl.java,v 1.8 2001/07/23 22:31:48 shaper Exp $
 
 package com.threerings.miso.tile;
 
@@ -43,9 +43,6 @@ public abstract class TileSetManagerImpl implements TileSetManager
 
     public ArrayList getAllTileSets ()
     {
-	int size = _tilesets.size();
-	if (size == 0) return null;
-
 	ArrayList list = new ArrayList();
 	CollectionUtil.addAll(list, _tilesets.elements());
 	return list;

src/java/com/threerings/media/tile/TileSetParser.java

@@ -1,24 +1,23 @@
 //
-// $Id: TileSetParser.java,v 1.3 2001/07/23 18:52:51 shaper Exp $
+// $Id: TileSetParser.java,v 1.4 2001/07/23 22:31:48 shaper Exp $
 
 package com.threerings.miso.tile;
 
-import java.io.InputStream;
 import java.io.IOException;
 import java.util.ArrayList;
 
 /**
- * An interface to be implemented by classes that wish to provide a
+ * The TileSetParser is a general interface to be implemented by
- * general interface to load tileset description information from an
+ * classes that load tileset descriptions in a particular format from
- * input stream.
+ * a file.
  */
 public interface TileSetParser
 {
     /**
-     * Read tileset description data from the given input stream and
+     * Read tileset description data from the specified file and
      * construct TileSet objects to suit.  Return an ArrayList of all
-     * TileSet objects constructed, or a zero-length array if no
+     * TileSet objects constructed, or a zero-length list if no
      * tileset descriptions were fully parsed.
      */
-    public ArrayList loadTileSets (InputStream tis) throws IOException;
+    public ArrayList loadTileSets (String fname) throws IOException;
 }

src/java/com/threerings/media/tile/XMLTileSetParser.java

@@ -1,20 +1,19 @@
 //
-// $Id: XMLTileSetParser.java,v 1.5 2001/07/23 18:52:51 shaper Exp $
+// $Id: XMLTileSetParser.java,v 1.6 2001/07/23 22:31:48 shaper Exp $
 
 package com.threerings.miso.tile;
 
-import com.threerings.miso.Log;
-
-import com.samskivert.util.StringUtil;
-import com.samskivert.xml.XMLUtil;
-
-import org.xml.sax.*;
-import org.xml.sax.helpers.DefaultHandler;
-
 import java.io.*;
 import java.util.ArrayList;
 import javax.xml.parsers.ParserConfigurationException;
 
+import org.xml.sax.*;
+import org.xml.sax.helpers.DefaultHandler;
+
+import com.samskivert.util.*;
+import com.samskivert.xml.XMLUtil;
+import com.threerings.miso.Log;
+
 /**
  * Parse an XML tileset description file and construct tileset objects
  * for each valid description.  Does not currently perform validation
@@ -75,13 +74,22 @@ public class XMLTileSetParser extends DefaultHandler
 	}
     }
 
-    public ArrayList loadTileSets (InputStream tis) throws IOException
+    public ArrayList loadTileSets (String fname) throws IOException
     {
-    	try {
+	try {
-	    XMLUtil.parse(this, tis);
+	    InputStream tis = ConfigUtil.getStream(fname);
-	    return _tilesets;
+	    if (tis == null) {
+		Log.warning("Couldn't find file [fname=" + fname + "].");
+		return _tilesets;
+	    }
 
-	} catch (ParserConfigurationException pce) {
+            // read all tileset descriptions from the XML input stream
+            XMLTileSetParser parser = new XMLTileSetParser();
+	    XMLUtil.parse(this, tis);
+
+            return _tilesets;
+
+        } catch (ParserConfigurationException pce) {
   	    throw new IOException(pce.toString());
 
 	} catch (SAXException saxe) {

src/java/com/threerings/miso/client/DisplayMisoSceneImpl.java

@@ -1,5 +1,5 @@
 //
-// $Id: DisplayMisoSceneImpl.java,v 1.9 2001/07/23 18:52:51 shaper Exp $
+// $Id: DisplayMisoSceneImpl.java,v 1.10 2001/07/23 22:31:47 shaper Exp $
 
 package com.threerings.miso.scene;
 
@@ -16,24 +16,25 @@ import java.io.*;
  */
 public class Scene
 {
+    /** String translations of each tile layer name. */
     public static final String[] XLATE_LAYERS = { "Base", "Object" };
 
-    public Tile tiles[][][];  // the tiles comprising the scene
+    /** The tiles comprising the scene. */
+    public Tile tiles[][][];
 
     /**
-     * Construct a new Scene object initialized to a default state.
+     * Construct a new Scene object initialized to a default state,
+     * specifying the tile manager from which the scene obtains tiles.
+     *
+     * @param tilemgr the tile manager.
      */
-    public Scene (TileManager tmgr)
+    public Scene (TileManager tilemgr, int sid)
     {
-	_tmgr = tmgr;
+	_tilemgr = tilemgr;
-
 	_name = DEF_SCENE_NAME;
-	_sid = 0;
-	_version = VERSION;
-
 	tiles = new Tile[TILE_WIDTH][TILE_HEIGHT][NUM_LAYERS];
 
-	Tile tile = _tmgr.getTile(DEF_TSID, DEF_TID);
+	Tile tile = _tilemgr.getTile(DEF_TSID, DEF_TID);
 	for (int xx = 0; xx < TILE_WIDTH; xx++) {
 	    for (int yy = 0; yy < TILE_HEIGHT; yy++) {
 		for (int ii = 0; ii < NUM_LAYERS; ii++) {
@@ -44,7 +45,39 @@ public class Scene
 	    }
 	}
     }
-    
+
+    /**
+     * Return the scene name.
+     */
+    public String getName ()
+    {
+        return _name;
+    }
+
+    /**
+     * Return the scene identifier.
+     */
+    public short getId ()
+    {
+        return _sid;
+    }
+
+    /**
+     * Return the scene hot spots array.
+     */
+    public Point[] getHotSpots ()
+    {
+        return _hotspots;
+    }
+
+    /**
+     * Return the scene exit points array.
+     */
+    public ExitPoint[] getExits ()
+    {
+        return _exits;
+    }
+
     /**
      * Return the number of actual (non-null) tiles present in the
      * specified tile layer for this scene.
@@ -75,12 +108,12 @@ public class Scene
 	// read scene header information
 	_name    = dis.readUTF();
 	_sid     = dis.readShort();
-	_version = dis.readShort();
+	short version = dis.readShort();
 
 	// make sure we can understand the file format
-	if (_version < 0 || _version > VERSION) {
+	if (version < 0 || version > VERSION) {
 	    throw new IOException("Can't understand scene file format " +
-				  " [version=" + _version + "]");
+				  " [version=" + version + "]");
 	}
 
 	// allocate full tile array.  null tiles denote tiles in absentia.
@@ -94,7 +127,7 @@ public class Scene
 		short tid = dis.readShort();
 
 		// retrieve tile from tile manager
-		tiles[xx][yy][LAYER_BASE] = _tmgr.getTile(tsid, tid);
+		tiles[xx][yy][LAYER_BASE] = _tilemgr.getTile(tsid, tid);
 	    }
 	}
 
@@ -111,7 +144,7 @@ public class Scene
 		byte ty = dis.readByte();
 
 		// retrieve tile from tile manager
-		tiles[tx][ty][lnum] = _tmgr.getTile(tsid, tid);
+		tiles[tx][ty][lnum] = _tilemgr.getTile(tsid, tid);
 	    }
 	}
 	
@@ -145,7 +178,7 @@ public class Scene
 	// write scene header information
 	dos.writeUTF(_name);
 	dos.writeShort(_sid);
-	dos.writeShort(_version);
+	dos.writeShort(VERSION);
 
 	// write tiles for the base layer
 	for (int xx = 0; xx < TILE_WIDTH; xx++) {
@@ -190,28 +223,45 @@ public class Scene
 	}
     }
 
-    // the latest scene file format version number
+    /** The latest scene file format version. */
     protected static final short VERSION = 1;
 
-    // scene width/height in tiles
+    /** The scene width in tiles. */
     protected static final int TILE_WIDTH = 55;
+
+    /** The scene height in tiles. */
     protected static final int TILE_HEIGHT = 55;
 
-    // layer identifiers and total number of layers
+    /** The base layer id. */
     protected static final int LAYER_BASE = 0;
+
+    /** The object layer id. */
     protected static final int LAYER_OBJECT = 1;
+
+    /** The total number of layers. */
     protected static final int NUM_LAYERS = 2;
 
+    /** The default scene name. */
     protected static final String DEF_SCENE_NAME = "Untitled Scene";
 
+    /** The default tileset id. */
     protected static final short DEF_TSID = 1000;
+
+    /** The default tile id. */
     protected static final short DEF_TID = 1;
 
-    protected String _name;        // the scene name
+    /** The scene name. */
-    protected short _sid;          // the unique scene id
+    protected String _name;
-    protected short _version;      // file format version
-    protected Point _hotspots[];   // hot spot zone points
-    protected ExitPoint _exits[];  // exit points to different scenes
 
-    protected TileManager _tmgr;
+    /** The unique scene id. */
+    protected short _sid;
+
+    /** Hot-spot zone points */
+    protected Point _hotspots[];
+
+    /** Exit points to different scenes. */
+    protected ExitPoint _exits[];
+
+    /** The tile manager. */
+    protected TileManager _tilemgr;
 }

src/java/com/threerings/miso/client/EditableSceneManager.java

@@ -1,8 +1,68 @@
 //
-// $Id: EditableSceneManager.java,v 1.5 2001/07/23 18:52:51 shaper Exp $
+// $Id: EditableSceneManager.java,v 1.6 2001/07/23 22:31:47 shaper Exp $
 
 package com.threerings.miso.scene;
 
+import java.io.IOException;
+import java.util.ArrayList;
+
+import com.threerings.miso.Log;
+
+/**
+ * The EditableSceneManager extends general scene manager
+ * functionality to allow reading scenes from and writing scenes to
+ * XML files.
+ */
 public class EditableSceneManager extends SceneManagerImpl
 {
+    /**
+     * Load all scenes described in the specified XML file into the
+     * hashtable of scenes currently available.
+     *
+     * @param fname the file to load scenes from.
+     */
+    public void loadScenes (String fname) throws IOException
+    {
+        ArrayList scenes = null;
+        _sid = 0;
+        try {
+            scenes = new XMLSceneParser().loadScenes(fname);
+        } catch (IOException ioe) {
+	    Log.warning("Exception loading scenes [fname=" + fname +
+			", ioe=" + ioe + "].");
+            return;
+        }
+
+        // bail if we didn't find any scenes
+        int size = scenes.size();
+        if (size == 0) {
+            Log.warning("No scenes found [fname=" + fname + "].");
+            return;
+        }
+
+        // copy new scenes into the main scene hashtable
+        for (int ii = 0; ii < size; ii++) {
+            Scene scene = (Scene)scenes.get(ii);
+            _scenes.put(scene.getId(), scene);
+            Log.info("Adding scene to cache [scene=" + scene + "].");
+        }
+    }
+
+    /**
+     * Write all scenes currently available to the specified file in
+     * XML format.
+     *
+     * @param fname the file to write the scenes to.
+     */
+    public void writeAllScenes (String fname)
+    {
+        try {
+            ArrayList scenes = getAllScenes();
+            new XMLSceneWriter(scenes).writeToFile(fname);
+
+        } catch (IOException ioe) {
+            Log.warning("Exception writing scenes to file [fname=" +
+                        fname + ", ioe=" + ioe + "].");
+        }
+    }
 }

src/java/com/threerings/miso/client/SceneManager.java

@@ -1,10 +1,11 @@
 //
-// $Id: SceneManager.java,v 1.5 2001/07/23 18:52:51 shaper Exp $
+// $Id: SceneManager.java,v 1.6 2001/07/23 22:31:47 shaper Exp $
 
 package com.threerings.miso.scene;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.ArrayList;
 
 /**
  * Manages the various scenes that are displayed during the game and
@@ -12,6 +13,20 @@ import java.io.InputStream;
  */
 public interface SceneManager
 {
+    /**
+     * Return an ArrayList containing all Scene objects available.
+     *
+     * @return the list of scenes.
+     */
+    public ArrayList getAllScenes ();
+
+    /**
+     * Return a new Scene object with the next unique scene id.  The
+     * scene id is only guaranteed to be unique in the context of the
+     * scenes currently available via this SceneManager.
+     */
+    public Scene getNewScene ();
+
     /**
      * Return the Scene object for the specified scene id.
      */

src/java/com/threerings/miso/client/SceneManagerImpl.java

@@ -1,17 +1,23 @@
 //
-// $Id: SceneManagerImpl.java,v 1.5 2001/07/23 18:52:51 shaper Exp $
+// $Id: SceneManagerImpl.java,v 1.6 2001/07/23 22:31:47 shaper Exp $
 
 package com.threerings.miso.scene;
 
-import com.threerings.miso.Log;
-
-import com.samskivert.util.ConfigUtil;
-
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.ArrayList;
+
+import com.samskivert.util.*;
+import com.threerings.miso.Log;
+import com.threerings.miso.tile.TileManager;
 
 public abstract class SceneManagerImpl implements SceneManager
 {
+    public void init (TileManager tilemgr)
+    {
+        _tilemgr = tilemgr;
+    }
+
     public Scene getScene (int sid)
     {
 	// TBD
@@ -22,4 +28,27 @@ public abstract class SceneManagerImpl implements SceneManager
     {
 	return Scene.XLATE_LAYERS;
     }
+
+    public ArrayList getAllScenes ()
+    {
+	ArrayList list = new ArrayList();
+	CollectionUtil.addAll(list, _scenes.elements());
+	return list;
+    }
+
+    public Scene getNewScene ()
+    {
+        Scene scene = new Scene(_tilemgr, _sid);
+        _scenes.put(_sid++, scene);
+        return scene;
+    }
+
+    /** The next monotonically-increasing scene id. */
+    protected int _sid = 0;
+
+    /** The tile manager for use by all scenes. */
+    protected TileManager _tilemgr;
+
+    /** The scenes currently available. */
+    protected IntMap _scenes = new IntMap();
 }

src/java/com/threerings/miso/tile/EditableTileSetManager.java

@@ -1,14 +1,12 @@
 //
-// $Id: EditableTileSetManager.java,v 1.7 2001/07/23 18:52:51 shaper Exp $
+// $Id: EditableTileSetManager.java,v 1.8 2001/07/23 22:31:48 shaper Exp $
 
 package com.threerings.miso.tile;
 
 import java.io.IOException;
-import java.io.InputStream;
 import java.util.ArrayList;
 
 import com.samskivert.util.Config;
-import com.samskivert.util.ConfigUtil;
 import com.threerings.miso.Log;
 import com.threerings.media.ImageManager;
 
@@ -24,43 +22,29 @@ public class EditableTileSetManager extends TileSetManagerImpl
     {
         super.init(config, imgmgr);
 
-        // load the tileset descriptions
+        // load the tilesets from the XML description file
         String fname = config.getValue("miso.tilesets", (String)null);
-        loadTileSets(fname);
+        ArrayList tilesets = null;
-    }
+        try {
-
+            tilesets = new XMLTileSetParser().loadTileSets(fname);
-    /**
-     * Load the tilesets described in the specified file into the set
-     * of available tilesets.
-     */
-    protected void loadTileSets (String fname)
-    {
-	try {
-	    InputStream tis = ConfigUtil.getStream(fname);
-	    if (tis == null) {
-		Log.warning("Couldn't find file [fname=" + fname + "].");
-		return;
-	    }
-
-            // read all tileset descriptions from the XML input stream
-            XMLTileSetParser parser = new XMLTileSetParser();
-            ArrayList tsets = parser.loadTileSets(tis);
-            if (tsets == null) {
-                Log.warning("No tilesets found [tis=" + tis + "].");
-                return;
-            }
-
-            // copy new tilesets into the main tileset hashtable
-            int size = tsets.size();
-            for (int ii = 0; ii < size; ii++) {
-                TileSet tset = (TileSet)tsets.get(ii);
-                _tilesets.put(tset.getId(), tset);
-                Log.info("Adding tileset to cache [tset=" + tset + "].");
-            }
-
         } catch (IOException ioe) {
 	    Log.warning("Exception loading tileset [fname=" + fname +
 			", ioe=" + ioe + "].");
-	}
+            return;
+        }
+
+        // bail if we didn't find any tilesets
+        int size = tilesets.size();
+        if (size == 0) {
+            Log.warning("No tilesets found [fname=" + fname + "].");
+            return;
+        }
+
+        // copy new tilesets into the main tileset hashtable
+        for (int ii = 0; ii < size; ii++) {
+            TileSet tset = (TileSet)tilesets.get(ii);
+            _tilesets.put(tset.getId(), tset);
+            Log.info("Adding tileset to cache [tset=" + tset + "].");
+        }
     }
 }

src/java/com/threerings/miso/util/MisoUtil.java

@@ -1,5 +1,5 @@
 //
-// $Id: MisoUtil.java,v 1.2 2001/07/23 18:52:51 shaper Exp $
+// $Id: MisoUtil.java,v 1.3 2001/07/23 22:31:48 shaper Exp $
 
 package com.threerings.miso.util;
 
@@ -39,12 +39,15 @@ public class MisoUtil
      *
      * @return the new SceneManager object or null if an error occurred.
      */
-    public static SceneManager createSceneManager (Config config)
+    public static SceneManager
+        createSceneManager (Config config, TileManager tilemgr)
     {
 	try {
-	    return (SceneManager)
+	    SceneManagerImpl scenemgr = (SceneManagerImpl)
 		config.instantiateValue("miso.scenemgr", DEF_SCENEMGR);
-
+            scenemgr.init(tilemgr);
+            return scenemgr;
+            
 	} catch (Exception e) {
 	    Log.warning("Failed to instantiate scene manager [e=" + e + "].");
 	    return null;