Removed the optimization of not recalculating the hover sprite when we were

still over a hover sprite as that prevents things from working properly if
hover sprites overlap. This isn't much of a tradeoff as most of the time the
mouse is not over a hover sprite in which case it does the full hit testing
anyway.

Also fixed a bug wherein the active sprite was not actually configured unless
it implemented HoverSprite which the rest of the code takes pains not to
require (it should be and is now possible to have action sprites that do not
implement HoverSprite but still work).

By the way, this whole action/hover/etc. sprite business is goddamned handy.
It's *so* much nicer than having to implement mouse listeners and do a bunch of
crap by hand.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3717 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/media/MediaPanel.java

@@ -710,13 +710,11 @@ public class MediaPanel extends JComponent
                 }
             }
 
-            if (_activeSprite == null) {
-                Sprite s = getHit(me);
-                if (s instanceof HoverSprite) {
-                    ((HoverSprite) s).setHovered(true);
-                    _activeSprite = s;
-                }
+            Sprite s = getHit(me);
+            if (s instanceof HoverSprite) {
+                ((HoverSprite) s).setHovered(true);
             }
+            _activeSprite = s;
         }
 
         /**