$Date: 2005/10/23 10:46:16 $
$Revision: 1.4 $
-- Returns reference to the singleton
-- (From EM_TIME_SINGLETON)
-- Speed in distance (i.e. pixels) per second.
Let yout EM_DRAWABLE inherit from this class so that you can
set it's movement to a constant speed.
The movement is not influenced by the framerate.