Beginnings of Spot services.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@618 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/whirled/spot/client/DisplaySpotScene.java

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+//
+// $Id: DisplaySpotScene.java,v 1.1 2001/11/13 02:25:35 mdb Exp $
+
+package com.threerings.whirled.spot.client;
+
+import com.threerings.whirled.client.DisplayScene;
+
+import com.threerings.whirled.spot.data.Location;
+import com.threerings.whirled.spot.data.Portal;
+
+/**
+ * Makes available the spot scene information that the client needs to
+ * display a spot scene, to make requests to the server to move from
+ * location to location and to neighboring scenes and to display the same.
+ */
+public interface DisplaySpotScene extends DisplayScene
+{
+    /**
+     * Returns an array of the locations in this scene (including portals
+     * which will be instances of {@link Portal}).
+     */
+    public Location[] getLocations ();
+
+    /**
+     * Returns an array of the portals in this scene.
+     */
+    public Portal[] getPortals ();
+}

src/java/com/threerings/whirled/spot/client/DisplaySpotSceneImpl.java

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+//
+// $Id: DisplaySpotSceneImpl.java,v 1.1 2001/11/13 02:25:35 mdb Exp $
+
+package com.threerings.whirled.spot.client;
+
+import com.threerings.crowd.data.PlaceConfig;
+import com.threerings.whirled.client.DisplaySceneImpl;
+
+import com.threerings.whirled.spot.data.Location;
+import com.threerings.whirled.spot.data.Portal;
+import com.threerings.whirled.spot.data.SpotSceneModel;
+
+/**
+ * A basic implementation of the {@link DisplaySpotScene} interface which
+ * is used by default if no extended implementation is desired.
+ */
+public class DisplaySpotSceneImpl extends DisplaySceneImpl
+{
+    /**
+     * Creates an instance that will obtain data from the supplied scene
+     * model and place config.
+     */
+    public DisplaySpotSceneImpl (SpotSceneModel model, PlaceConfig config)
+    {
+        super(model, config);
+
+        // keep a casted reference to our model around
+        _model = model;
+
+        // sort out our locations and portals
+        int lcount = model.locationIds.length;
+        int pcount = model.portalIds.length;
+        _portals = new Portal[pcount];
+        _locations = new Location[lcount - pcount];
+
+        // because the portals ids are in the same order as the location
+        // ids, we can parse them in one pass
+        int pidx = 0;
+        for (int i = 0; i < lcount; i++) {
+            Location loc;
+            // stop checking for portals once we've parsed them all
+            int pid = (pidx < pcount) ? model.portalIds[pidx] : -1;
+
+            if (model.locationIds[i] == pid) {
+                // add this portal to the portals array
+                _portals[pidx] = new Portal(
+                    pid, model.locationX[i], model.locationY[i],
+                    model.locationOrients[i], model.neighborIds[pidx],
+                    model.targetLocIds[pidx]);
+                loc = _portals[pidx];
+                pidx++;
+
+            } else {
+                loc = new Location(
+                    model.locationIds[i], model.locationX[i],
+                    model.locationY[i], model.locationOrients[i],
+                    model.locationClusters[i]);
+            }
+
+            // everything goes into the locations array
+            _locations[i] = loc;
+        }
+    }
+
+    // documentation inherited
+    public Location[] getLocations ()
+    {
+        return _locations;
+    }
+
+    // documentation inherited
+    public Portal[] getPortals ()
+    {
+        return _portals;
+    }
+
+    /** The data that makes up our scene. */
+    protected SpotSceneModel _model;
+
+    /** An array of the locations (and portals) in this scene. */
+    protected Location[] _locations;
+
+    /** An array of just the portals in this scene. */
+    protected Portal[] _portals;
+}