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			68 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			68 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
#ifndef OPENMW_COMPONENTS_MISC_COORDINATECONVERTER_H
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#define OPENMW_COMPONENTS_MISC_COORDINATECONVERTER_H
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#include <components/esm/defs.hpp>
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#include <components/esm/loadcell.hpp>
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#include <components/esm/loadland.hpp>
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#include <components/esm/loadpgrd.hpp>
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namespace Misc
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{
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    /// \brief convert coordinates between world and local cell
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    class CoordinateConverter
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    {
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        public:
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            CoordinateConverter(bool exterior, int cellX, int cellY)
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                : mCellX(exterior ? cellX * ESM::Land::REAL_SIZE : 0),
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                  mCellY(exterior ? cellY * ESM::Land::REAL_SIZE : 0)
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            {
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            }
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            explicit CoordinateConverter(const ESM::Cell* cell)
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                : CoordinateConverter(cell->isExterior(), cell->mData.mX, cell->mData.mY)
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            {
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            }
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            /// in-place conversion from local to world
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            void toWorld(ESM::Pathgrid::Point& point) const
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            {
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                point.mX += mCellX;
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                point.mY += mCellY;
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            }
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            ESM::Pathgrid::Point toWorldPoint(ESM::Pathgrid::Point point) const
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            {
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                toWorld(point);
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                return point;
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            }
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            /// in-place conversion from local to world
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            void toWorld(osg::Vec3f& point) const
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            {
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                point.x() += static_cast<float>(mCellX);
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                point.y() += static_cast<float>(mCellY);
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            }
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            /// in-place conversion from world to local
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            void toLocal(osg::Vec3f& point) const
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            {
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                point.x() -= static_cast<float>(mCellX);
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                point.y() -= static_cast<float>(mCellY);
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            }
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            osg::Vec3f toLocalVec3(const osg::Vec3f& point) const
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            {
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                return osg::Vec3f(
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                    point.x() - static_cast<float>(mCellX),
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                    point.y() - static_cast<float>(mCellY),
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                    point.z()
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                );
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            }
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        private:
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            int mCellX;
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            int mCellY;
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    };
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}
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#endif
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