Added viewWillScroll() for letting a path know that the view in which its

sprite was following a path is going to scroll; fixed bug in
getDirection(); added setDuration() which computes the path velocity based
on the time that the sprite should spend following the path.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1252 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/media/util/Path.java

@@ -1,5 +1,5 @@
 //
-// $Id: Path.java,v 1.2 2001/12/16 08:05:46 mdb Exp $
+// $Id: Path.java,v 1.3 2002/04/15 23:09:10 mdb Exp $
 
 package com.threerings.media.sprite;
 
@@ -50,6 +50,13 @@ public interface Path
      */
     public void setVelocity (float velocity);
 
+    /**
+     * Called when the view that contains the sprite following this path
+     * is scrolling by the specified amount. Gives the path an opportunity
+     * to adjust its internal coordinates by the scrolled amount.
+     */
+    public void viewWillScroll (int dx, int dy);
+
     /**
      * Paint this path on the screen (used for debugging purposes only).
      */