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118 lines
4.0 KiB
118 lines
4.0 KiB
#ifndef Magnum_Physics_Sphere_h |
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#define Magnum_Physics_Sphere_h |
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/* |
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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/** @file |
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* @brief Class Magnum::Physics::Sphere, typedef Magnum::Physics::Sphere2D, Magnum::Physics::Sphere3D |
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*/ |
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#include "Math/Vector3.h" |
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#include "AbstractShape.h" |
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namespace Magnum { namespace Physics { |
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template<size_t> class Line; |
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template<size_t> class LineSegment; |
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template<size_t> class Point; |
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/** |
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@brief %Sphere defined by position and radius |
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Unlike other elements the sphere doesn't support asymmetric scaling. When |
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applying transformation, the scale factor is averaged from all axes. |
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@see Sphere2D, Sphere3D |
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*/ |
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template<size_t dimensions> class PHYSICS_EXPORT Sphere: public AbstractShape<dimensions> { |
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public: |
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/** @brief Constructor */ |
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inline Sphere(const typename DimensionTraits<dimensions, GLfloat>::VectorType& position, float radius): _position(position), _transformedPosition(position), _radius(radius), _transformedRadius(radius) {} |
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void applyTransformation(const typename DimensionTraits<dimensions, GLfloat>::MatrixType& transformation); |
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bool collides(const AbstractShape<dimensions>* other) const; |
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/** @brief Position */ |
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inline typename DimensionTraits<dimensions, GLfloat>::VectorType position() const { |
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return _position; |
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} |
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/** @brief Set position */ |
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inline void setPosition(const typename DimensionTraits<dimensions, GLfloat>::VectorType& position) { |
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_position = position; |
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} |
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/** @brief Radius */ |
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inline float radius() const { return _radius; } |
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/** @brief Set radius */ |
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inline void setRadius(float radius) { _radius = radius; } |
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/** @brief Transformed position */ |
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inline typename DimensionTraits<dimensions, GLfloat>::VectorType transformedPosition() const { |
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return _transformedPosition; |
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} |
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/** @brief Transformed radius */ |
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inline float transformedRadius() const { |
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return _transformedRadius; |
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} |
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/** @brief Collision with point */ |
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bool operator%(const Point<dimensions>& other) const; |
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/** @brief Collision with line */ |
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bool operator%(const Line<dimensions>& other) const; |
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/** @brief Collision with line segment */ |
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bool operator%(const LineSegment<dimensions>& other) const; |
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/** @brief Collision with sphere */ |
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bool operator%(const Sphere<dimensions>& other) const; |
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protected: |
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inline typename AbstractShape<dimensions>::Type type() const { |
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return AbstractShape<dimensions>::Type::Sphere; |
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} |
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private: |
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Math::Vector<dimensions, GLfloat> _position, |
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_transformedPosition; |
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float _radius, _transformedRadius; |
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}; |
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#ifndef DOXYGEN_GENERATING_OUTPUT |
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extern template class PHYSICS_EXPORT Sphere<2>; |
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extern template class PHYSICS_EXPORT Sphere<3>; |
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#endif |
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/** @brief Two-dimensional sphere */ |
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typedef Sphere<2> Sphere2D; |
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/** @brief Three-dimensional sphere */ |
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typedef Sphere<3> Sphere3D; |
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/** @collisionoperator{Point,Sphere} */ |
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template<size_t dimensions> inline bool operator%(const Point<dimensions>& a, const Sphere<dimensions>& b) { return b % a; } |
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/** @collisionoperator{Line,Sphere} */ |
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template<size_t dimensions> inline bool operator%(const Line<dimensions>& a, const Sphere<dimensions>& b) { return b % a; } |
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/** @collisionoperator{LineSegment,Sphere} */ |
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template<size_t dimensions> inline bool operator%(const LineSegment<dimensions>& a, const Sphere<dimensions>& b) { return b % a; } |
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}} |
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#endif
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