Multi-State Mazes: maker_yaw.hpp Source File

00001 
00027 #ifndef MSMAZES_CORE_FSM_INPUT_MAKER_YAW_HPP
00028 #define MSMAZES_CORE_FSM_INPUT_MAKER_YAW_HPP
00029 
00030 #include <boost/mpl/bool.hpp>  // boost::mpl::true_ and boost::mpl::false_
00031 
00032 namespace msmazes {
00033 
00035 
00062 struct FSMYawInputMaker
00063 {
00068     typedef boost::mpl::true_
00069             RequiresSingleLayer;
00070 
00075     typedef boost::mpl::true_
00076             RequiresLastVisitedMap;
00077 
00085     template <
00086         typename Pattern
00087     >
00088     inline static typename Pattern::OutDegree
00089         getInputCount(
00090             const Pattern& pattern
00091         )
00092     {
00093         return pattern.getMaxOutDegree();
00094     }
00095 
00106     template <
00107         typename Pattern
00108     >
00109     static typename Pattern::DirectionChange
00110         getInput(
00111             const Pattern& pattern
00112           , const typename Pattern::CellIndex previous_cell_i
00113           , const typename Pattern::CellIndex current_cell_i
00114           , const typename Pattern::CellIndex next_cell_i
00115         )
00116     {
00117         return
00118             (getInputCount(pattern) / 2)
00119           + pattern.getYawTurn(previous_cell_i, current_cell_i, next_cell_i);
00120     }
00121 };
00122 }  // namespace msmazes
00123 
00124 #endif  /* MSMAZES_CORE_FSM_INPUT_MAKER_YAW_HPP */