zeus/include/CTransform.hpp

122 lines
4.1 KiB
C++

#ifndef CTRANSFORM_HPP
#define CTRANSFORM_HPP
#include "Global.hpp"
#include "CMatrix3f.hpp"
#include "CMatrix4f.hpp"
#include "CVector3f.hpp"
#include "CQuaternion.hpp"
namespace Zeus
{
class alignas(16) CTransform
{
public:
ZE_DECLARE_ALIGNED_ALLOCATOR();
CTransform() : m_basis(false) {}
CTransform(const CMatrix3f& basis, const CVector3f& offset=CVector3f::skZero) :
m_basis(basis), m_origin(offset) {}
#if ZE_ATHENA_TYPES
CTransform(const atVec4f* mtx)
: m_basis(mtx[0], mtx[1], mtx[2]), m_origin(mtx[0].vec[3], mtx[1].vec[3], mtx[2].vec[3]) {}
#endif
inline CTransform operator*(const CTransform& rhs) const
{return CTransform(m_basis * rhs.m_basis, m_origin + (m_basis * rhs.m_origin));}
inline CTransform inverse() const
{
CMatrix3f inv = m_basis.inverted();
return CTransform(inv, inv * -m_origin);
}
inline void translate(const CVector3f& position)
{
m_basis = CMatrix3f::skIdentityMatrix3f;
m_origin = position;
}
inline void translate(float x, float y, float z) { translate({x, y, z}); }
inline void rotate(const CVector3f& euler) { *this = *this * CMatrix3f(CQuaternion(euler)); }
inline void scaleBy(float factor)
{ CTransform xfrm(CMatrix3f(CVector3f(factor, factor, factor))); *this = *this * xfrm; }
inline void scale(const CVector3f& factor)
{
m_basis = CMatrix3f(true);
m_basis[0][0] = factor.x;
m_basis[1][1] = factor.y;
m_basis[2][2] = factor.z;
m_origin.zeroOut();
}
inline void scale(float x, float y, float z) { scale({x, y, z}); }
inline void scale(float factor) { scale({factor, factor, factor}); }
inline void multiplyIgnoreTranslation(const CTransform& xfrm) { m_basis = m_basis*xfrm.m_basis; }
inline CTransform getRotation() { CTransform ret = *this; ret.m_origin.zeroOut(); return ret; }
void setRotation(const CMatrix3f& mat) { m_basis = mat; }
void setRotation(const CTransform& xfrm) { setRotation(xfrm.m_basis); }
/**
* @brief buildMatrix3f Returns the stored matrix
* buildMatrix3f is here for compliance with Retro's Math API
* @return The Matrix (Neo, you are the one)
*/
inline CMatrix3f buildMatrix3f() { return m_basis; }
inline CVector3f operator*(const CVector3f& other) const {return m_origin + m_basis * other;}
inline void toMatrix4f(CMatrix4f& mat) const
{
#if __SSE__
mat.vec[0].mVec128 = m_basis[0].mVec128; mat.m[0][3] = 0.0f;
mat.vec[1].mVec128 = m_basis[1].mVec128; mat.m[1][3] = 0.0f;
mat.vec[2].mVec128 = m_basis[2].mVec128; mat.m[2][3] = 0.0f;
mat.vec[3].mVec128 = m_origin.mVec128; mat.m[3][3] = 1.0f;
#else
mat.m[0][0] = m_basis[0][0]; mat.m[0][1] = m_basis[0][1]; mat.m[0][2] = m_basis[0][2]; mat.m[0][3] = 0.0f;
mat.m[1][0] = m_basis[1][0]; mat.m[1][1] = m_basis[1][1]; mat.m[1][2] = m_basis[1][2]; mat.m[1][3] = 0.0f;
mat.m[2][0] = m_basis[2][0]; mat.m[2][1] = m_basis[2][1]; mat.m[2][2] = m_basis[2][2]; mat.m[2][3] = 0.0f;
mat.m[3][0] = m_origin[0]; mat.m[3][1] = m_origin[1]; mat.m[3][2] = m_origin[2]; mat.m[3][3] = 1.0f;
#endif
}
static inline CTransform fromColumns(const CVector3f& m0, const CVector3f& m1, const CVector3f& m2, const CVector3f& m3)
{
CTransform ret;
ret.m_basis[0][0] = m0[0];
ret.m_basis[0][1] = m1[0];
ret.m_basis[0][2] = m2[0];
ret.m_origin[0] = m3[0];
ret.m_basis[1][0] = m0[1];
ret.m_basis[1][1] = m1[1];
ret.m_basis[1][2] = m2[1];
ret.m_origin[1] = m3[1];
ret.m_basis[2][0] = m0[2];
ret.m_basis[2][1] = m1[2];
ret.m_basis[2][2] = m2[2];
ret.m_origin[2] = m3[2];
return ret;
}
CMatrix3f m_basis;
CVector3f m_origin;
};
static inline CTransform CTransformFromScaleVector(const CVector3f& scale)
{
return CTransform(CMatrix3f(scale));
}
CTransform CTransformFromEditorEuler(const CVector3f& eulerVec);
CTransform CTransformFromEditorEulers(const CVector3f& eulerVec, const CVector3f& origin);
CTransform CTransformFromAxisAngle(const CVector3f& axis, float angle);
}
#endif // CTRANSFORM_HPP