Initial version of runtime miso scene business.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2055 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/miso/server/RuntimeMisoScene.java

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+//
+// $Id: RuntimeMisoScene.java,v 1.1 2002/12/11 23:07:21 shaper Exp $
+
+package com.threerings.miso.server;
+
+import java.util.Iterator;
+
+import com.threerings.miso.scene.SceneObject;
+
+/**
+ * The Miso scene interface used by the server to deal with scenes.
+ */
+public interface RuntimeMisoScene
+{
+    /**
+     * Iterates over the {@link RuntimeSceneObject} instances representing
+     * all available objects in the scene.
+     */
+    public Iterator enumerateSceneObjects ();
+}

src/java/com/threerings/miso/server/RuntimeMisoSceneImpl.java

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+//
+// $Id: RuntimeMisoSceneImpl.java,v 1.1 2002/12/11 23:07:21 shaper Exp $
+
+package com.threerings.miso.server;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+
+import com.threerings.miso.scene.MisoSceneModel;
+import com.threerings.miso.scene.SceneObject;
+
+/**
+ * A basic implementation of the {@link RuntimeMisoScene} interface which
+ * is used by default if no extended implementation is desired.
+ */
+public class RuntimeMisoSceneImpl
+    implements RuntimeMisoScene
+{
+    /**
+     * Creates an instance that will obtain data from the supplied scene
+     * model and place config.
+     */
+    public RuntimeMisoSceneImpl (MisoSceneModel model)
+    {
+        // keep a casted reference to our scene model around
+        _model = model;
+
+        // build a list of all objects in the scene
+        populateSceneObjects();
+    }
+
+    /**
+     * Gathers and stores information about all objects in the scene.
+     */
+    protected void populateSceneObjects ()
+    {
+        int ocount = _model.objectTileIds.length;
+        for (int ii = 0; ii < ocount; ii += 3) {
+            RuntimeSceneObject scobj = new RuntimeSceneObject();
+            scobj.x = _model.objectTileIds[ii];
+            scobj.y = _model.objectTileIds[ii+1];
+            scobj.action = _model.objectActions[ii/3];
+            _objects.add(scobj);
+        }
+    }
+
+    // documentation inherited
+    public Iterator enumerateSceneObjects ()
+    {
+        return _objects.iterator();
+    }
+
+    /** A casted reference to our scene model. */
+    protected MisoSceneModel _model;
+
+    /** The scene object records. */
+    protected ArrayList _objects = new ArrayList();
+}

src/java/com/threerings/miso/server/RuntimeSceneObject.java

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+//
+// $Id: RuntimeSceneObject.java,v 1.1 2002/12/11 23:07:21 shaper Exp $
+
+package com.threerings.miso.server;
+
+import com.samskivert.util.StringUtil;
+
+/**
+ * Used to track server-side information about an object in a miso scene.
+ */
+public class RuntimeSceneObject
+{
+    /** The x and y tile coordinates of the object. */
+    public int x = -1, y = -1;
+
+    /** The action associated with this object or null if it has no
+     * action. */
+    public String action;
+
+    // documentation inherited
+    public boolean equals (Object other)
+    {
+        if (other instanceof RuntimeSceneObject) {
+            RuntimeSceneObject oso = (RuntimeSceneObject)other;
+            // TODO: we should probably check the tile type as well, but
+            // for now we only differentiate runtime miso scene objects by
+            // their coordinates within the scene since we don't bother
+            // keeping around tile information server-side
+            return (x == oso.x && y == oso.y);
+        } else {
+            return false;
+        }
+    }
+
+    // documentation inherited
+    public int hashCode ()
+    {
+        return x ^ y;
+    }
+
+    /** Generates a string representation of this instance. */
+    public String toString ()
+    {
+        return StringUtil.fieldsToString(this);
+    }
+}