Added support for pausing a media panel which pauses all sprites and

animations currently operating therein. (It doesn't pause scrolling which
I suppose I'll have to fix at some point if we ever need it.)


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1292 542714f4-19e9-0310-aa3c-eee0fc999fb1

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

@@ -1,5 +1,5 @@
 //
-// $Id: LineSegmentPath.java,v 1.20 2002/04/16 20:38:24 mdb Exp $
+// $Id: LineSegmentPath.java,v 1.21 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.sprite;
 
@@ -212,6 +212,12 @@ public class LineSegmentPath
         return false;
     }
 
+    // documentation inherited
+    public void fastForward (long timeDelta)
+    {
+        _nodestamp += timeDelta;
+    }
+
     /**
      * Place the sprite moving along the path at the end of the
      * previous path node, face it appropriately for the next node,

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

@@ -1,5 +1,5 @@
 //
-// $Id: Path.java,v 1.4 2002/04/23 01:16:28 mdb Exp $
+// $Id: Path.java,v 1.5 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.sprite;
 
@@ -41,6 +41,14 @@ public interface Path
      */
     public boolean updatePosition (Sprite sprite, long tickStamp);
 
+    /**
+     * This is called if the sprite manager is paused for some length of
+     * time and then unpaused. Paths should adjust any time stamps they
+     * are maintaining internally by the delta so that time maintains the
+     * illusion of flowing smoothly forward.
+     */
+    public void fastForward (long timeDelta);
+
     /**
      * Sets the velocity of this sprite in pixels per millisecond. The
      * velocity is measured as pixels traversed along the path that the