MyCurry/src/tileiterator.hpp

#pragma once

#include "vector.hpp"
#include <boost/iterator/iterator_facade.hpp>
#include <ciso646>

namespace curry {
	typedef int Tile;
	class WorldViewport;

	struct ScreenTile {
		Tile index;
		vec2i pixel_pos;
	};

	class TileIterator : public boost::iterator_facade<TileIterator, Tile, boost::bidirectional_traversal_tag, ScreenTile> {
		typedef boost::iterator_facade<TileIterator, Tile, boost::bidirectional_traversal_tag, ScreenTile> base_class;
		friend class boost::iterator_core_access;
	public:
		TileIterator (WorldViewport* parViewport, bool parEnd);

	private:
		ScreenTile dereference() const;
		void increment();
		bool equal (const TileIterator& parOther) const;

		vec2i m_pixel_pos;
		WorldViewport* m_viewport;
		vec2us m_index;
	};
} //namespace curry