Phase one of the scene refactoring (which will set the stage for all

manner of happiness and joy).


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@615 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/whirled/data/SceneModel.java

@@ -0,0 +1,63 @@
+//
+// $Id: SceneModel.java,v 1.1 2001/11/12 20:56:55 mdb Exp $
+
+package com.threerings.whirled.data;
+
+import java.io.IOException;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+
+import com.threerings.presents.io.Streamable;
+
+/**
+ * The scene model is the bare bones representation of the data for a
+ * scene in the Whirled system. From the scene model, one would create an
+ * instance of {@link com.threerings.whirled.server.RuntimeScene}, {@link
+ * com.threerings.whirled.client.DisplayScene} or {@link
+ * com.threerings.whirled.tools.EditableScene}.
+ *
+ * <p> The scene model is what is loaded from the scene repositories and
+ * what is transmitted over the wire when communicating scenes from the
+ * server to the client.
+ */
+public class SceneModel implements Streamable
+{
+    /** This scene's unique identifier. */
+    public int sceneId;
+
+    /** The version number of this scene. Versions are incremented
+     * whenever modifications are made to a scene so that clients can
+     * determine whether or not they have the latest version of a
+     * scene. */
+    public int version;
+
+    /** The scene ids of the scenes that neighbor this scene. A neighbor
+     * is a scene that can be entered from this scene. */
+    public int[] neighborIds;
+
+    // documentation inherited
+    public void writeTo (DataOutputStream out)
+        throws IOException
+    {
+        out.writeInt(sceneId);
+        out.writeInt(version);
+        int nlength = neighborIds.length;
+        out.writeInt(nlength);
+        for (int i = 0; i < nlength; i++) {
+            out.writeInt(neighborIds[i]);
+        }
+    }
+
+    // documentation inherited
+    public void readFrom (DataInputStream in)
+        throws IOException
+    {
+        sceneId = in.readInt();
+        version = in.readInt();
+        int nlength = in.readInt();
+        neighborIds = new int[nlength];
+        for (int i = 0; i < nlength; i++) {
+            neighborIds[i] = in.readInt();
+        }
+    }
+}