SilentPatch/SilentPatchSA/Maths.h
2015-04-22 15:20:40 +02:00

370 lines
12 KiB
C++

#ifndef __MATHS__H
#define __MATHS__H
#define RAD_TO_DEG (180.0/M_PI)
#define DEG_TO_RAD (M_PI/180.0)
class CVector
{
public:
float x, y, z;
CVector()
{}
CVector(float fX, float fY, float fZ=0.0f)
: x(fX), y(fY), z(fZ)
{}
CVector(const RwV3d& rwVec)
: x(rwVec.x), y(rwVec.y), z(rwVec.z)
{}
CVector& operator+=(const CVector& vec)
{ x += vec.x; y += vec.y; z += vec.z;
return *this; }
CVector& operator+=(const RwV3d& vec)
{ x += vec.x; y += vec.y; z += vec.z;
return *this; }
CVector& operator-=(const CVector& vec)
{ x -= vec.x; y -= vec.y; z -= vec.z;
return *this; }
CVector& operator-=(const RwV3d& vec)
{ x -= vec.x; y -= vec.y; z -= vec.z;
return *this; }
inline float Magnitude()
{ return sqrt(x * x + y * y + z * z); }
inline float MagnitudeSqr()
{ return x * x + y * y + z * z; }
inline CVector& Normalize()
{ float fInvLen = 1.0f / Magnitude(); x *= fInvLen; y *= fInvLen; z *= fInvLen; return *this; }
friend inline float DotProduct(const CVector& vec1, const CVector& vec2)
{ return vec1.x * vec2.x + vec1.x * vec2.y + vec1.z * vec2.z; }
friend inline CVector CrossProduct(const CVector& vec1, const CVector& vec2)
{ return CVector( vec1.y * vec2.z - vec1.z * vec2.y,
vec1.z * vec2.x - vec1.x * vec2.z,
vec1.x * vec2.y - vec1.y * vec2.x); }
friend inline CVector operator*(const CVector& in, float fMul)
{ return CVector(in.x * fMul, in.y * fMul, in.z * fMul); }
friend inline CVector operator+(const CVector& vec1, const CVector& vec2)
{ return CVector(vec1.x + vec2.x, vec1.y + vec2.y, vec1.z + vec2.z); }
friend inline CVector operator+(const CVector& vec1, const RwV3d& vec2)
{ return CVector(vec1.x + vec2.x, vec1.y + vec2.y, vec1.z + vec2.z); }
friend inline CVector operator-(const CVector& vec1, const CVector& vec2)
{ return CVector(vec1.x - vec2.x, vec1.y - vec2.y, vec1.z - vec2.z); }
friend inline CVector operator-(const CVector& vec1, const RwV3d& vec2)
{ return CVector(vec1.x - vec2.x, vec1.y - vec2.y, vec1.z - vec2.z); }
friend inline CVector operator-(const CVector& vec)
{ return CVector(-vec.x, -vec.y, -vec.z); }
};
class CVector2D
{
public:
float x, y;
CVector2D()
{}
CVector2D(float fX, float fY)
: x(fX), y(fY)
{}
CVector2D& operator+=(const CVector2D& vec)
{ x += vec.x; y += vec.y;
return *this; }
CVector2D& operator-=(const CVector2D& vec)
{ x -= vec.x; y -= vec.y;
return *this; }
inline float Magnitude()
{ return sqrt(x * x + y * y); }
inline float MagnitudeSqr()
{ return x * x + y * y; }
inline CVector2D& Normalize()
{ float fInvLen = 1.0f / Magnitude(); x *= fInvLen; y *= fInvLen; return *this; }
friend inline float DotProduct(const CVector2D& vec1, const CVector2D& vec2)
{ return vec1.x * vec2.x + vec1.x * vec2.y; }
friend inline CVector2D operator*(const CVector2D& in, float fMul)
{ return CVector2D(in.x * fMul, in.y * fMul); }
friend inline CVector2D operator+(const CVector2D& vec1, const CVector2D& vec2)
{ return CVector2D(vec1.x + vec2.x, vec1.y + vec2.y); }
friend inline CVector2D operator-(const CVector2D& vec1, const CVector2D& vec2)
{ return CVector2D(vec1.x - vec2.x, vec1.y - vec2.y); }
friend inline CVector2D operator-(const CVector2D& vec)
{ return CVector2D(-vec.x, -vec.y); }
};
class CMatrix
{
public:
RwMatrix matrix;
RwMatrix* pMatrix;
BOOL haveRwMatrix;
public:
inline CMatrix()
: pMatrix(nullptr), haveRwMatrix(FALSE)
{}
inline CMatrix(RwMatrix* pMatrix, bool bHasMatrix=false)
: pMatrix(nullptr)
{ Attach(pMatrix, bHasMatrix); }
inline CMatrix(const CMatrix& theMatrix)
: pMatrix(nullptr), haveRwMatrix(FALSE), matrix(theMatrix.matrix)
{}
inline CMatrix(const CVector& vecRight, const CVector& vecUp, const CVector& vecAt, const CVector& vecPos)
{
matrix.right.x = vecRight.x;
matrix.right.y = vecRight.y;
matrix.right.z = vecRight.z;
matrix.up.x = vecUp.x;
matrix.up.y = vecUp.y;
matrix.up.z = vecUp.z;
matrix.at.x = vecAt.x;
matrix.at.y = vecAt.y;
matrix.at.z = vecAt.z;
matrix.pos.x = vecPos.x;
matrix.pos.y = vecPos.y;
matrix.pos.z = vecPos.z;
}
inline ~CMatrix()
{ if ( haveRwMatrix && pMatrix )
RwMatrixDestroy(pMatrix); }
friend inline CMatrix operator*(const CMatrix& Rot1, const CMatrix& Rot2)
{ return CMatrix( CVector(Rot1.matrix.right.x * Rot2.matrix.right.x + Rot1.matrix.right.y * Rot2.matrix.up.x + Rot1.matrix.right.z * Rot2.matrix.at.x + Rot2.matrix.pos.x,
Rot1.matrix.right.x * Rot2.matrix.right.y + Rot1.matrix.right.y * Rot2.matrix.up.y + Rot1.matrix.right.z * Rot2.matrix.at.y + Rot2.matrix.pos.y,
Rot1.matrix.right.x * Rot2.matrix.right.z + Rot1.matrix.right.y * Rot2.matrix.up.z + Rot1.matrix.right.z * Rot2.matrix.at.z + Rot2.matrix.pos.z),
CVector(Rot1.matrix.up.x * Rot2.matrix.right.x + Rot1.matrix.up.y * Rot2.matrix.up.x + Rot1.matrix.up.z * Rot2.matrix.at.x + Rot2.matrix.pos.x,
Rot1.matrix.up.x * Rot2.matrix.right.y + Rot1.matrix.up.y * Rot2.matrix.up.y + Rot1.matrix.up.z * Rot2.matrix.at.y + Rot2.matrix.pos.y,
Rot1.matrix.up.x * Rot2.matrix.right.z + Rot1.matrix.up.y * Rot2.matrix.up.z + Rot1.matrix.up.z * Rot2.matrix.at.z + Rot2.matrix.pos.z),
CVector(Rot1.matrix.at.x * Rot2.matrix.right.x + Rot1.matrix.at.y * Rot2.matrix.up.x + Rot1.matrix.at.z * Rot2.matrix.at.x + Rot2.matrix.pos.x,
Rot1.matrix.at.x * Rot2.matrix.right.y + Rot1.matrix.at.y * Rot2.matrix.up.y + Rot1.matrix.at.z * Rot2.matrix.at.y + Rot2.matrix.pos.y,
Rot1.matrix.at.x * Rot2.matrix.right.z + Rot1.matrix.at.y * Rot2.matrix.up.z + Rot1.matrix.at.z * Rot2.matrix.at.z + Rot2.matrix.pos.z),
CVector(Rot1.matrix.pos.x * Rot2.matrix.right.x + Rot1.matrix.pos.y * Rot2.matrix.up.x + Rot1.matrix.pos.z * Rot2.matrix.at.x + Rot2.matrix.pos.x,
Rot1.matrix.pos.x * Rot2.matrix.right.y + Rot1.matrix.pos.y * Rot2.matrix.up.y + Rot1.matrix.pos.z * Rot2.matrix.at.y + Rot2.matrix.pos.y,
Rot1.matrix.pos.x * Rot2.matrix.right.z + Rot1.matrix.pos.y * Rot2.matrix.up.z + Rot1.matrix.pos.z * Rot2.matrix.at.z + Rot2.matrix.pos.z)); };
friend inline CVector operator*(const CMatrix& matrix, const CVector& vec)
{ return CVector(matrix.matrix.up.x * vec.y + matrix.matrix.right.x * vec.x + matrix.matrix.at.x * vec.z + matrix.matrix.pos.x,
matrix.matrix.up.y * vec.y + matrix.matrix.right.y * vec.x + matrix.matrix.at.y * vec.z + matrix.matrix.pos.y,
matrix.matrix.up.z * vec.y + matrix.matrix.right.z * vec.x + matrix.matrix.at.z * vec.z + matrix.matrix.pos.z); };
inline CVector* GetRight()
{ return reinterpret_cast<CVector*>(&matrix.right); }
inline CVector* GetUp()
{ return reinterpret_cast<CVector*>(&matrix.up); }
inline CVector* GetAt()
{ return reinterpret_cast<CVector*>(&matrix.at); }
inline CVector* GetPos()
{ return reinterpret_cast<CVector*>(&matrix.pos); }
inline void SetTranslateOnly(float fX, float fY, float fZ)
{ matrix.pos.x = fX; matrix.pos.y = fY; matrix.pos.z = fZ; }
inline void SetRotateX(float fAngle)
{ SetRotateXOnly(fAngle); matrix.pos.x = 0.0f; matrix.pos.y = 0.0f; matrix.pos.z = 0.0f; }
inline void SetRotateY(float fAngle)
{ SetRotateYOnly(fAngle); matrix.pos.x = 0.0f; matrix.pos.y = 0.0f; matrix.pos.z = 0.0f; }
inline void SetRotateZ(float fAngle)
{ SetRotateZOnly(fAngle); matrix.pos.x = 0.0f; matrix.pos.y = 0.0f; matrix.pos.z = 0.0f; }
inline void SetRotate(float fAngleX, float fAngleY, float fAngleZ)
{ SetRotateOnly(fAngleX, fAngleY, fAngleZ); matrix.pos.x = 0.0f; matrix.pos.y = 0.0f; matrix.pos.z = 0.0f; }
inline void SetTranslate(float fX, float fY, float fZ)
{ matrix.right.x = 1.0f; matrix.right.y = 0.0f; matrix.right.z = 0.0f;
matrix.up.x = 0.0f; matrix.up.y = 1.0f; matrix.up.z = 0.0f;
matrix.at.x = 0.0f; matrix.at.y = 0.0f; matrix.at.z = 1.0f;
SetTranslateOnly(fX, fY, fZ); }
inline void SetUnity()
{
matrix.right.x = 1.0f; matrix.right.y = 0.0f; matrix.right.z = 0.0f;
matrix.up.x = 0.0f; matrix.up.y = 1.0f; matrix.up.z = 0.0f;
matrix.at.x = 0.0f; matrix.at.y = 0.0f; matrix.at.z = 1.0f;
matrix.pos.x = 0.0f; matrix.pos.y = 0.0f; matrix.pos.z = 0.0f;
}
inline void SetScale(float fScale)
{
matrix.right.x = fScale; matrix.right.y = 0.0f; matrix.right.z = 0.0f;
matrix.up.x = 0.0f; matrix.up.y = fScale; matrix.up.z = 0.0f;
matrix.at.x = 0.0f; matrix.at.y = 0.0f; matrix.at.z = fScale;
matrix.pos.x = 0.0f; matrix.pos.y = 0.0f; matrix.pos.z = 0.0f;
}
inline void RotateX(float fAngle)
{
CMatrix RotationMatrix;
RotationMatrix.SetRotateX(fAngle);
*this = *this * RotationMatrix;
}
inline void RotateY(float fAngle)
{
CMatrix RotationMatrix;
RotationMatrix.SetRotateY(fAngle);
*this = *this * RotationMatrix;
}
inline void RotateZ(float fAngle)
{
CMatrix RotationMatrix;
RotationMatrix.SetRotateZ(fAngle);
*this = *this * RotationMatrix;
}
inline void Rotate(float fAngleX, float fAngleY, float fAngleZ)
{
CMatrix RotationMatrix;
RotationMatrix.SetRotate(fAngleX, fAngleY, fAngleZ);
*this = *this * RotationMatrix;
}
inline void SetRotateXOnly(float fAngle)
{
matrix.right.x = 1.0f;
matrix.right.y = 0.0f;
matrix.right.z = 0.0f;
matrix.up.x = 0.0f;
matrix.up.y = cos(fAngle);
matrix.up.z = sin(fAngle);
matrix.at.x = 0.0f;
matrix.at.y = -sin(fAngle);
matrix.at.z = cos(fAngle);
}
inline void SetRotateYOnly(float fAngle)
{
matrix.right.x = cos(fAngle);
matrix.right.y = 0.0f;
matrix.right.z = sin(fAngle);
matrix.up.x = 0.0f;
matrix.up.y = 1.0f;
matrix.up.z = 0.0f;
matrix.at.x = -sin(fAngle);
matrix.at.y = 0.0f;
matrix.at.z = cos(fAngle);
}
inline void SetRotateZOnly(float fAngle)
{
matrix.at.x = 0.0f;
matrix.at.y = 0.0f;
matrix.at.z = 1.0f;
matrix.up.x = -sin(fAngle);
matrix.up.y = cos(fAngle);
matrix.up.z = 0.0f;
matrix.right.x = cos(fAngle);
matrix.right.y = sin(fAngle);
matrix.right.z = 0.0f;
}
inline void SetRotateOnly(float fAngleX, float fAngleY, float fAngleZ)
{
matrix.right.x = cos(fAngleZ) * cos(fAngleY) - sin(fAngleZ) * sin(fAngleX) * sin(fAngleY);
matrix.right.y = cos(fAngleZ) * sin(fAngleX) * sin(fAngleY) + sin(fAngleZ) * cos(fAngleY);
matrix.right.z = -cos(fAngleX) * sin(fAngleY);
matrix.up.x = -sin(fAngleZ) * cos(fAngleX);
matrix.up.y = cos(fAngleZ) * cos(fAngleX);
matrix.up.z = sin(fAngleX);
matrix.at.x = sin(fAngleZ) * sin(fAngleX) * cos(fAngleY) + cos(fAngleZ) * sin(fAngleY);
matrix.at.y = sin(fAngleZ) * sin(fAngleY) - cos(fAngleZ) * sin(fAngleX) * cos(fAngleY);
matrix.at.z = cos(fAngleX) * cos(fAngleY);
}
inline void Attach(RwMatrix* pMatrix, bool bHasMatrix)
{
if ( this->pMatrix && haveRwMatrix )
RwMatrixDestroy(this->pMatrix);
this->pMatrix = pMatrix;
haveRwMatrix = bHasMatrix;
Update();
}
inline void AttachRw(RwMatrix* pMatrix, bool bHasMatrix)
{
if ( this->pMatrix && haveRwMatrix )
RwMatrixDestroy(this->pMatrix);
this->pMatrix = pMatrix;
haveRwMatrix = bHasMatrix;
UpdateRW();
}
inline void Detach()
{
if ( pMatrix )
{
if ( haveRwMatrix )
RwMatrixDestroy(pMatrix);
pMatrix = nullptr;
}
}
inline void UpdateRW() const
{
if ( pMatrix )
UpdateRwMatrix(pMatrix);
}
inline void Update()
{
UpdateMatrix(pMatrix);
}
inline void UpdateMatrix(RwMatrix* pMatrix)
{
matrix.right = pMatrix->right;
matrix.up = pMatrix->up;
matrix.at = pMatrix->at;
matrix.pos = pMatrix->pos;
}
inline void UpdateRwMatrix(RwMatrix* pMatrix) const
{
pMatrix->right = matrix.right;
pMatrix->up = matrix.up;
pMatrix->at = matrix.at;
pMatrix->pos = matrix.pos;
RwMatrixUpdate(pMatrix);
}
inline void CopyToRwMatrix(RwMatrix* pMatrix) const
{
pMatrix->right = this->pMatrix->right;
pMatrix->up = this->pMatrix->up;
pMatrix->at = this->pMatrix->at;
pMatrix->pos = this->pMatrix->pos;
RwMatrixUpdate(pMatrix);
}
inline void CopyOnlyMatrix(const CMatrix& from)
{
matrix = from.matrix;
}
};
#endif