namespace dk {
	///--------------------------------------------------------------------------
	///--------------------------------------------------------------------------
	template <size_t D>
	LayerBase<D>::LayerBase (const coords& parCount, const coords& parTileSize, const coords& parMasterTileSize) :
		m_count(parCount / (parMasterTileSize / parTileSize)),
		m_tilesize(parTileSize),
		m_mastersize(parMasterTileSize)
	{
		DK_ASSERT((parMasterTileSize / parTileSize) * parTileSize == parMasterTileSize);
	}

	///--------------------------------------------------------------------------
	///--------------------------------------------------------------------------
	template <typename T, size_t D>
	Layer<T, D>::Layer (const coords& parTileSize, const coords& parMasterTileSize, TileMapData<T, D>& parTilemap) :
		LayerBase<D>(parTilemap.mapSize(), parTileSize, parMasterTileSize),
		m_tilemap(parTilemap)
	{
	}

	///--------------------------------------------------------------------------
	///--------------------------------------------------------------------------
	template <typename T, size_t D>
	typename Layer<T, D>::iterator Layer<T, D>::begin() {
		return iterator(&m_tiles, coords(0), this->m_count);
	}

	///--------------------------------------------------------------------------
	///--------------------------------------------------------------------------
	template <typename T, size_t D>
	typename Layer<T, D>::iterator Layer<T, D>::end() {
		return iterator(&m_tiles, implem::buildPastEndCoordinate<D>(coords(0), this->m_count), this->m_count);
	}

	///--------------------------------------------------------------------------
	///--------------------------------------------------------------------------
	template <typename T, size_t D>
	void Layer<T, D>::preload (const coords& parFrom, const coords& parTo) {
		m_tiles.clear();
		const auto area = implem::area(parTo - parFrom);
		m_tiles.reserve(area);
		m_tilemap.fetch(m_tiles, parFrom, parTo);
		//m_streamer->copy(m_tiles, parFrom, parTo);:w
	}
}