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60 lines
3.4 KiB
C++
60 lines
3.4 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2024 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_CORE___COLLISIONHELPER___H__
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#define __OPENSPACE_CORE___COLLISIONHELPER___H__
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#include <ghoul/glm.h>
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namespace openspace::collision {
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/**
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* Calculate the intersection of a line segment and a sphere. The line segment is defined
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* from \p p1 to \p p2. The sphere is defined by the radius \p r and center point
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* \p center. The resulting intersection point is stored in the \p intersectionPoint
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* parameter.
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*
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* In the case of two intersection points, only care about the first one.
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*
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* \param p1 The start point for the line segment
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* \param p2 The end point for the line segment
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* \param center The center point for the sphere
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* \param r The radius of the sphere
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* \param intersectionPoint A variable to store the resulting intersection point in
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* \return True if the line between \p p1 and \p p2 intersects the sphere given by
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* \p r and \p center, and false otherwise
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*/
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bool lineSphereIntersection(const glm::dvec3& p1, const glm::dvec3& p2,
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const glm::dvec3& center, double r, glm::dvec3& intersectionPoint);
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/**
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* Check if the point \p p is inside of the sphere defined by radius \p r and center
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* point \p c
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*/
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bool isPointInsideSphere(const glm::dvec3& p, const glm::dvec3& c, double r);
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} // namespace openspace::collision
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#endif // __OPENSPACE_CORE___COLLISIONHELPER___H__
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