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81f9b4a4ee
Given this aims to be a general purpose math library for use in various other libraries applications for axiodl, we can annotate functions that return by value or reference with [[nodiscard]] where it's very obvious that not making use of the return value is a bug. This allows the compiler to diagnose and emit warnings for these API misuses at compile-time, preventing silent bugs from occurring. Any cases where not using the return value is desirable may still be casted to void in order to silence warnings.
54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
#pragma once
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#include "zeus/CAABox.hpp"
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#include "zeus/CTransform.hpp"
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#include "zeus/CVector3f.hpp"
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#if ZE_ATHENA_TYPES
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#include <athena/IStreamReader.hpp>
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#endif
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namespace zeus {
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class COBBox {
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public:
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#if ZE_ATHENA_TYPES
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void readBig(athena::io::IStreamReader& in) {
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transform.read34RowMajor(in);
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extents.readBig(in);
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}
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[[nodiscard]] static COBBox ReadBig(athena::io::IStreamReader& in) {
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COBBox out;
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out.readBig(in);
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return out;
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}
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#endif
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CTransform transform;
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CVector3f extents;
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constexpr COBBox() = default;
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COBBox(const CAABox& aabb) : extents(aabb.extents()) { transform.origin = aabb.center(); }
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constexpr COBBox(const CTransform& xf, const CVector3f& extents) : transform(xf), extents(extents) {}
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[[nodiscard]] CAABox calculateAABox(const CTransform& worldXf = CTransform()) const;
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[[nodiscard]] static COBBox FromAABox(const CAABox& box, const CTransform& xf) {
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const CVector3f center = box.center();
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const CVector3f extents = box.max - center;
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const CTransform newXf = xf * CTransform::Translate(center);
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return COBBox(newXf, extents);
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}
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[[nodiscard]] bool OBBIntersectsBox(const COBBox& other) const;
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[[nodiscard]] bool AABoxIntersectsBox(const CAABox& other) const {
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return OBBIntersectsBox(FromAABox(other, CTransform()));
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}
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};
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} // namespace zeus
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