Use bitmask transparency for composited character sprites.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2125 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/cast/CompositedActionFrames.java

@@ -1,5 +1,5 @@
 //
-// $Id: CompositedActionFrames.java,v 1.12 2003/01/13 22:53:04 mdb Exp $
+// $Id: CompositedActionFrames.java,v 1.13 2003/01/13 23:53:04 mdb Exp $
 
 package com.threerings.cast;
 
@@ -7,6 +7,7 @@ import java.awt.Graphics2D;
 import java.awt.Image;
 import java.awt.Point;
 import java.awt.Rectangle;
+import java.awt.Transparency;
 import java.util.Arrays;
 import java.util.Comparator;
 
@@ -228,6 +229,12 @@ public class CompositedActionFrames
                         _action, _sorient));
         }
 
+        // documentation inherited
+        protected int getTransparency ()
+        {
+            return Transparency.BITMASK;
+        }
+
         // documentation inherited
         protected void refreshVolatileImage ()
         {