DoorKeeper/include/doorkeeper/helpers/asciimapsource.hpp

#ifndef id263B7DAF9A1C40BB8517D5D328DF8A1B
#define id263B7DAF9A1C40BB8517D5D328DF8A1B

#include "doorkeeper/primitivetypes.hpp"
#include "doorkeeper/implem/vector.hpp"
#include <streambuf>
#include <vector>
#include <boost/iostreams/categories.hpp>  // source_tag

namespace dkh {
	class AsciiMapSource : public std::streambuf {
	public:
		typedef dk::Vector<dk::CoordinateScalarType, 2> coords;
		typedef int MapTileType;
		typedef boost::iostreams::source_tag category;
		enum {
			MapDimensions = 2
		};

		AsciiMapSource ( void ) = delete;
		AsciiMapSource ( const AsciiMapSource& ) = delete;
		AsciiMapSource ( AsciiMapSource&& parOther ) = default;
		AsciiMapSource ( const char* parFilename, const coords& parSize );
		AsciiMapSource ( const std::string& parFilename, const coords& parSize );
		AsciiMapSource ( std::istream& parData, const coords& parSize );
		template <typename I>
		AsciiMapSource ( I parDataFrom, I parDataTo, const coords& parSize );
		~AsciiMapSource ( void ) noexcept = default;

		const coords& mapSize ( void ) const noexcept { return m_mapSize; }

	protected:
		virtual int_type underflow ( void );
		virtual int_type uflow ( void );
		virtual int_type pbackfail ( int_type parCh );
		virtual std::streamsize showmanyc ( void );
		virtual pos_type seekoff ( off_type parOff, std::ios_base::seekdir parDir, std::ios_base::openmode parWhich );
		virtual pos_type seekpos( pos_type parPos, std::ios_base::openmode parWhich );

	private:
		enum {
			DataSize = sizeof(MapTileType)
		};

		void parse_map_data ( std::istream& parSrc );

		std::vector<MapTileType> m_wholedata;
		const coords m_mapSize;
		std::size_t m_bytepos;
	};
} //namespace dkh

#endif