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54 lines
1.8 KiB
54 lines
1.8 KiB
/* |
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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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#include "Plane.h" |
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#include <limits> |
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#include "Math/Matrix4.h" |
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#include "Math/Point3D.h" |
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#include "Math/Geometry/Intersection.h" |
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#include "LineSegment.h" |
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using namespace std; |
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using namespace Magnum::Math::Geometry; |
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namespace Magnum { namespace Physics { |
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void Plane::applyTransformationMatrix(const Matrix4& matrix) { |
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_transformedPosition = (matrix*Magnum::Point3D(_position)).xyz(); |
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_transformedNormal = matrix.rotation()*_normal; |
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} |
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bool Plane::collides(const AbstractShape<3>* other) const { |
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if(other->type() == Type::Line) |
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return *this % *static_cast<const Line3D*>(other); |
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if(other->type() == Type::LineSegment) |
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return *this % *static_cast<const LineSegment3D*>(other); |
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return AbstractShape<3>::collides(other); |
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} |
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bool Plane::operator%(const Line3D& other) const { |
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float t = Intersection::planeLine(transformedPosition(), transformedNormal(), other.transformedA(), other.transformedB()); |
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return t != t || (t != numeric_limits<float>::infinity() && t != -numeric_limits<float>::infinity()); |
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} |
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bool Plane::operator%(const LineSegment3D& other) const { |
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float t = Intersection::planeLine(transformedPosition(), transformedNormal(), other.transformedA(), other.transformedB()); |
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return t > 0.0f && t < 1.0f; |
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} |
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}}
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