DoorKeeper/include/implem/tilestream.inl

namespace dk {
	template <typename T, size_t D>
	TileStreamer<T, D>::TileStreamer (StreamPtr&& parStream) :
		m_stream(std::move(parStream))
	{
		//TODO: this loader /only/ works with 2D tilesets, remove it asap

		typedef std::istream_iterator<char> DataIterator;
		typedef boost::spirit::multi_pass<DataIterator> WrappedIterator;

		*m_stream >> std::noskipws;

		auto first = WrappedIterator(DataIterator(*m_stream));
		auto last = WrappedIterator(DataIterator());
		implem::AsciiMapGrammar<WrappedIterator, T> grammar(first);
		const bool p = boost::spirit::qi::parse(
			first,
			last,
			grammar,
			m_wholedata
		);

		if (not p or last != first) {
			throw std::runtime_error("Invalid data: can't parse file");
		}

		//Only look at the front. Besides a bug in spirit makes the other counts
		//invalid, see
		//http://boost.2283326.n4.nabble.com/Possible-bug-in-line-pos-iterator-td4636592.html
		m_count.x() = grammar.lengths.front();
		m_count.y() = m_wholedata.size() / m_count.x();
	}

	template <typename T, size_t D>
	void TileStreamer<T, D>::copy (std::vector<T>& parDest, const coords& /*parFrom*/, const coords& /*parTo*/) {
		parDest.clear();
		parDest.reserve(m_wholedata.size());
		std::copy(m_wholedata.begin(), m_wholedata.end(), std::back_inserter(parDest));
	}
} //namespace dk