82 lines
3.3 KiB
C++
82 lines
3.3 KiB
C++
/* Derived from code written by Jonathan Kreuzer.
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*
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* See: http://www.3dkingdoms.com/weekly/weekly.php?a=21
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*
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* basically the same as bbox.h/.cpp but using coldet math
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*
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* -- quote from a mail of the author --
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*
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* You're free to continue using my CBBox code however you want.
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* ... [snip] ...
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* The only thing I ask is a note about where it came from ( I think
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* you said you added a link to the article, so that's fine. )
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*
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*/
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/************************************************************************
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* Copyright (c) 2005-2007 tok@openlinux.org.uk *
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* *
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* This software is provided as-is, without any express or implied *
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* warranty. In no event will the authors be held liable for any *
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* damages arising from the use of this software. *
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* *
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* Permission is granted to anyone to use this software for any purpose, *
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* including commercial applications, and to alter it and redistribute *
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* it freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must *
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* not claim that you wrote the original software. If you use this *
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* software in a product, an acknowledgment in the product documentation *
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* would be appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must *
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* not be misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source *
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* distribution. *
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************************************************************************/
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#include "math3d.h"
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class OBox
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{
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public:
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OBox() {}
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OBox( const Matrix3D & m, const Vector3D & extent )
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{ set( m, extent ); }
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OBox( const Matrix3D & m, const Vector3D & low, const Vector3D & high )
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{ set( m, low, high ); }
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OBox( const OBox & other)
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{ set( other.m_M, other.m_Extent ); }
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void set( const Matrix3D & m, const Vector3D & extent )
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{
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m_M = m;
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m_Extent = extent;
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}
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void set( const Matrix3D & m, const Vector3D & low, const Vector3D & high )
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{
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m_M = m;
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m_M.Translate( 0.5f * (low + high) );
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m_Extent = 0.5f * (high - low);
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}
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Vector3D getSize() const
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{ return 2.0f * m_Extent; }
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Vector3D getCenterPoint() const
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{ return m_M.GetTranslate(); }
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void getInvRot( Vector3D *pvRot ) const;
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bool isPointInBox( const Vector3D & p ) const ;
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bool isBoxInBox( OBox & box ) const ;
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bool isSphereInBox( const Vector3D & p, float fRadius ) const ;
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bool isLineInBox( const Vector3D & l1, const Vector3D & l2 ) const ;
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bool boxOutsidePlane( const Vector3D & normal, const Vector3D & p ) const ;
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void lineCrossBox(const Vector3D & l1, const Vector3D & l2, Vector3D & isecLocalSpace) const;
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// Data
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Matrix3D m_M;
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Vector3D m_Extent;
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};
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