mirror of https://github.com/AxioDL/zeus.git
60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
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#ifndef COBBOX_HPP
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#define COBBOX_HPP
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#include "CTransform.hpp"
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#include "CVector3f.hpp"
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#include "CAABox.hpp"
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class COBBox
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{
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public:
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CTransform m_transform;
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CVector3f m_extents;
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COBBox()
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{}
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COBBox(const CAABox& aabb)
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{ createFromAABox(aabb); }
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CAABox calculateAABox(const CTransform& transform = CTransform())
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{
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CAABox ret = CAABox::skInvertedBox;
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CTransform trans = transform * m_transform;
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static const CVector3f basis[8] ={
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{ 1.0, 1.0, 1.0},
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{ 1.0, 1.0, -1.0},
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{ 1.0, -1.0, 1.0},
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{ 1.0, -1.0, -1.0},
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{-1.0, -1.0, -1.0},
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{-1.0, -1.0, 1.0},
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{-1.0, 1.0, -1.0},
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{-1.0, 1.0, 1.0}
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};
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for (int i = 0; i < 8; i++)
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{
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CVector3f p = (m_extents * basis[i]);
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ret.accumulateBounds(trans * p);
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}
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return ret;
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}
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void createFromAABox(const CAABox& box)
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{
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m_extents = box.extents();
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m_transform.m_origin = box.center();
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}
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static inline COBBox fromAABox(const CAABox& box)
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{
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COBBox ret;
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ret.createFromAABox(box);
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return box;
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}
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};
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#endif
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