used to easily plug in different methods of smoothly varying a value over time.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3834 542714f4-19e9-0310-aa3c-eee0fc999fb1
dispatching classes in Java to eliminate annoying dependency on the output
format of JDK 1.4.1's javap.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3238 542714f4-19e9-0310-aa3c-eee0fc999fb1