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Diffstat (limited to 'src/math/vector.h')
| -rw-r--r-- | src/math/vector.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/math/vector.h b/src/math/vector.h new file mode 100644 index 0000000..f514a00 --- /dev/null +++ b/src/math/vector.h @@ -0,0 +1,119 @@ +// math/vector.h + +/* Vector struct and functions */ + +#pragma once + +#include "const.h" + +#include <cmath> + +/* + TODO + +HRESULT D3DMath_VectorMatrixMultiply( D3DVECTOR& vDest, D3DVECTOR& vSrc, D3DMATRIX& mat) + +float Length(const D3DVECTOR &a, const D3DVECTOR &b); +float Length2d(const D3DVECTOR &a, const D3DVECTOR &b); +float Angle( D3DVECTOR u, D3DVECTOR v ); +D3DVECTOR Cross( D3DVECTOR u, D3DVECTOR v ); +D3DVECTOR ComputeNormal( D3DVECTOR p1, D3DVECTOR p2, D3DVECTOR p3 ); +D3DVECTOR Transform(const D3DMATRIX &m, D3DVECTOR p); +D3DVECTOR Projection(const D3DVECTOR &a, const D3DVECTOR &b, const D3DVECTOR &p); + +D3DVECTOR SegmentDist(const D3DVECTOR &p1, const D3DVECTOR &p2, float dist); + +BOOL Intersect(D3DVECTOR a, D3DVECTOR b, D3DVECTOR c, D3DVECTOR d, D3DVECTOR e, D3DVECTOR &i); +BOOL IntersectY(D3DVECTOR a, D3DVECTOR b, D3DVECTOR c, D3DVECTOR &p); + + +D3DVECTOR RotateView(D3DVECTOR center, float angleH, float angleV, float dist); +D3DVECTOR LookatPoint( D3DVECTOR eye, float angleH, float angleV, float length ); + +void MappingObject( D3DVERTEX2* pVertices, int nb, float scale ); +void SmoothObject( D3DVERTEX2* pVertices, int nb ); + +float DistancePlanPoint(const D3DVECTOR &a, const D3DVECTOR &b, const D3DVECTOR &c, const D3DVECTOR &p); +BOOL IsSamePlane(D3DVECTOR *plan1, D3DVECTOR *plan2); + */ + +// Math module namespace +namespace Math +{ + +/** 4x1 Vector + + Represents an universal 4x1 vector that can be used in OpenGL and DirectX engines. + Contains the required methods for operating on vectors. + + All methods are made inline to maximize optimization. + + */ +struct Vector +{ + //! X - 1st coord + float x; + //! Y - 2nd coord + float y; + //! Z - 3rd coord + float z; + //! W - 4th coord + float w; + + //! Creates an identity vector (0, 0, 0, 1) + Vector() + { + LoadIdentity(); + } + + //! Creates a vector from given values + Vector(float x, float y, float z, float w = 1.0f) + { + this->x = x; + this->y = y; + this->z = z; + this->w = w; + } + + //! Loads the identity vector (0, 0, 0, 1) + void LoadIdentity() + { + x = y = z = 0.0f; + w = 1.0f; + } + + //! Loads the zero vector (0, 0, 0, 0) + void LoadZero() + { + x = y = z = w = 0.0f; + } + + //! Returns the vector length + float Length() const + { + return sqrt(x*x + y*y + z*z + w*w); + } + + //! Normalizes the vector + void Normalize() + { + + } + + const Vector3D& operator-(); + const Vector3D& operator+=(const Vector3D &vector); + const Vector3D& operator-=(const Vector3D &vector); + const Vector3D& operator*=(double value); + const Vector3D& operator/=(double value); + + friend Vector3D operator+(const Vector3D &left, const Vector3D &right); + friend Vector3D operator-(const Vector3D &left, const Vector3D &right); + friend Vector3D operator*(double left, const Vector3D &right); + friend Vector3D operator*(const Vector3D &left, double right); + friend Vector3D operator/(const Vector3D &left, double right); + + friend Vector3D crossProduct(const Vector3D &left, const Vector3D &right); + friend double dotProduct(const Vector3D &left, const Vector3D &right); + friend double cosAngle(const Vector3D &vector1, const Vector3D &vector2); + friend double angle(const Vector3D &vector1, const Vector3D &vector2); +};
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