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116 lines
4.3 KiB
116 lines
4.3 KiB
#ifndef Magnum_Shapes_Sphere_h |
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#define Magnum_Shapes_Sphere_h |
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/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013 Vladimír Vondruš <mosra@centrum.cz> |
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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/** @file |
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* @brief Class Magnum::Shapes::Sphere, typedef Magnum::Shapes::Sphere2D, Magnum::Shapes::Sphere3D |
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*/ |
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#include "Math/Vector3.h" |
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#include "DimensionTraits.h" |
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#include "Shapes/Shapes.h" |
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#include "Shapes/magnumShapesVisibility.h" |
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namespace Magnum { namespace Shapes { |
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/** |
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@brief %Sphere defined by position and radius |
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Unlike other elements the sphere expects uniform scaling. See @ref shapes for |
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brief introduction. |
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@see Sphere2D, Sphere3D |
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@todo Store the radius as squared value to avoid sqrt/pow? Will complicate |
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collision detection with another sphere. |
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*/ |
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template<UnsignedInt dimensions> class MAGNUM_SHAPES_EXPORT Sphere { |
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public: |
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enum: UnsignedInt { |
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Dimensions = dimensions /**< Dimension count */ |
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}; |
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/** |
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* @brief Default constructor |
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* |
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* Creates zero-sized sphere at origin. |
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*/ |
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constexpr /*implicit*/ Sphere(): _radius(0.0f) {} |
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/** @brief Constructor */ |
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constexpr /*implicit*/ Sphere(const typename DimensionTraits<dimensions, Float>::VectorType& position, Float radius): _position(position), _radius(radius) {} |
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/** @brief Transformed shape */ |
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Sphere<dimensions> transformed(const typename DimensionTraits<dimensions, Float>::MatrixType& matrix) const; |
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/** @brief Position */ |
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constexpr typename DimensionTraits<dimensions, Float>::VectorType position() const { |
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return _position; |
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} |
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/** @brief Set position */ |
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void setPosition(const typename DimensionTraits<dimensions, Float>::VectorType& position) { |
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_position = position; |
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} |
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/** @brief Radius */ |
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constexpr Float radius() const { return _radius; } |
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/** @brief Set radius */ |
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void setRadius(Float radius) { _radius = radius; } |
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/** @brief %Collision occurence with point */ |
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bool operator%(const Point<dimensions>& other) const; |
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/** @brief %Collision occurence with line */ |
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bool operator%(const Line<dimensions>& other) const; |
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/** @brief %Collision occurence with line segment */ |
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bool operator%(const LineSegment<dimensions>& other) const; |
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/** @brief %Collision occurence with sphere */ |
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bool operator%(const Sphere<dimensions>& other) const; |
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private: |
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typename DimensionTraits<dimensions, Float>::VectorType _position; |
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Float _radius; |
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}; |
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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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/** @collisionoccurenceoperator{Point,Sphere} */ |
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template<UnsignedInt dimensions> inline bool operator%(const Point<dimensions>& a, const Sphere<dimensions>& b) { return b % a; } |
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/** @collisionoccurenceoperator{Line,Sphere} */ |
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template<UnsignedInt dimensions> inline bool operator%(const Line<dimensions>& a, const Sphere<dimensions>& b) { return b % a; } |
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/** @collisionoccurenceoperator{LineSegment,Sphere} */ |
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template<UnsignedInt 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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