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111 lines
3.7 KiB
C++
111 lines
3.7 KiB
C++
#ifndef OPENMW_COMPONENTS_DETOURNAVIGATOR_SETTINGSUTILS_H
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#define OPENMW_COMPONENTS_DETOURNAVIGATOR_SETTINGSUTILS_H
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#include "settings.hpp"
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#include "tilebounds.hpp"
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#include "tileposition.hpp"
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#include <osg/Vec2f>
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#include <osg/Vec3f>
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#include <algorithm>
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#include <cmath>
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namespace DetourNavigator
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{
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inline float toNavMeshCoordinates(const RecastSettings& settings, float value)
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{
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return value * settings.mRecastScaleFactor;
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}
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inline osg::Vec2f toNavMeshCoordinates(const RecastSettings& settings, osg::Vec2f position)
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{
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return position * settings.mRecastScaleFactor;
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}
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inline osg::Vec3f toNavMeshCoordinates(const RecastSettings& settings, osg::Vec3f position)
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{
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std::swap(position.y(), position.z());
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return position * settings.mRecastScaleFactor;
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}
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inline TileBounds toNavMeshCoordinates(const RecastSettings& settings, const TileBounds& value)
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{
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return TileBounds{ toNavMeshCoordinates(settings, value.mMin), toNavMeshCoordinates(settings, value.mMax) };
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}
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inline float fromNavMeshCoordinates(const RecastSettings& settings, float value)
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{
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return value / settings.mRecastScaleFactor;
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}
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inline osg::Vec3f fromNavMeshCoordinates(const RecastSettings& settings, osg::Vec3f position)
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{
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const auto factor = 1.0f / settings.mRecastScaleFactor;
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position *= factor;
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std::swap(position.y(), position.z());
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return position;
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}
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inline float getTileSize(const RecastSettings& settings)
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{
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return static_cast<float>(settings.mTileSize) * settings.mCellSize;
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}
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inline int getTilePosition(const RecastSettings& settings, float position)
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{
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const float v = std::floor(position / getTileSize(settings));
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if (v < static_cast<float>(std::numeric_limits<int>::min()))
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return std::numeric_limits<int>::min();
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if (v > static_cast<float>(std::numeric_limits<int>::max() - 1))
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return std::numeric_limits<int>::max() - 1;
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return static_cast<int>(v);
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}
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inline TilePosition getTilePosition(const RecastSettings& settings, const osg::Vec2f& position)
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{
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return TilePosition(getTilePosition(settings, position.x()), getTilePosition(settings, position.y()));
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}
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inline TilePosition getTilePosition(const RecastSettings& settings, const osg::Vec3f& position)
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{
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return getTilePosition(settings, osg::Vec2f(position.x(), position.z()));
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}
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inline TileBounds makeTileBounds(const RecastSettings& settings, const TilePosition& tilePosition)
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{
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return TileBounds{
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osg::Vec2f(tilePosition.x(), tilePosition.y()) * getTileSize(settings),
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osg::Vec2f(tilePosition.x() + 1, tilePosition.y() + 1) * getTileSize(settings),
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};
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}
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inline float getBorderSize(const RecastSettings& settings)
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{
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return static_cast<float>(settings.mBorderSize) * settings.mCellSize;
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}
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inline float getRealTileSize(const RecastSettings& settings)
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{
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return settings.mTileSize * settings.mCellSize / settings.mRecastScaleFactor;
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}
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inline float getMaxNavmeshAreaRadius(const Settings& settings)
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{
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return std::floor(std::sqrt(settings.mMaxTilesNumber / osg::PI)) - 1;
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}
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inline TileBounds makeRealTileBoundsWithBorder(const RecastSettings& settings, const TilePosition& tilePosition)
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{
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TileBounds result = makeTileBounds(settings, tilePosition);
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const float border = getBorderSize(settings);
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result.mMin -= osg::Vec2f(border, border);
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result.mMax += osg::Vec2f(border, border);
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result.mMin /= settings.mRecastScaleFactor;
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result.mMax /= settings.mRecastScaleFactor;
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return result;
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}
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}
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#endif
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