initial reformatting of comments for Doxygen

control.cpp

@@ -1,5 +1,9 @@
 // Hyperbolic Rogue -- control
-// Copyright (C) 2011-2018 Zeno Rogue, see 'hyper.cpp' for details
+// Copyright (C) 2011-2019 Zeno Rogue, see 'hyper.cpp' for details
+
+/** \file control.cpp 
+ *  \brief Routines related to controlling the game
+ */
 
 namespace hr {