Vector.h

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//
//  Vector.h
//  Recast
//
//  Created by Graham Pentheny on 7/31/15.
//
//

#ifndef Recast_Vector_h
#define Recast_Vector_h


inline void rcVcross(float* dest, const float* v1, const float* v2)
{
    dest[0] = v1[1]*v2[2] - v1[2]*v2[1];
    dest[1] = v1[2]*v2[0] - v1[0]*v2[2];
    dest[2] = v1[0]*v2[1] - v1[1]*v2[0];
}

inline float rcVdot(const float* v1, const float* v2)
{
    return v1[0]*v2[0] + v1[1]*v2[1] + v1[2]*v2[2];
}

inline void rcVmad(float* dest, const float* v1, const float* v2, const float s)
{
    dest[0] = v1[0]+v2[0]*s;
    dest[1] = v1[1]+v2[1]*s;
    dest[2] = v1[2]+v2[2]*s;
}

inline void rcVadd(float* dest, const float* v1, const float* v2)
{
    dest[0] = v1[0]+v2[0];
    dest[1] = v1[1]+v2[1];
    dest[2] = v1[2]+v2[2];
}

inline void rcVsub(float* dest, const float* v1, const float* v2)
{
    dest[0] = v1[0]-v2[0];
    dest[1] = v1[1]-v2[1];
    dest[2] = v1[2]-v2[2];
}

inline void rcVmin(float* mn, const float* v)
{
    mn[0] = rcMin(mn[0], v[0]);
    mn[1] = rcMin(mn[1], v[1]);
    mn[2] = rcMin(mn[2], v[2]);
}

inline void rcVmax(float* mx, const float* v)
{
    mx[0] = rcMax(mx[0], v[0]);
    mx[1] = rcMax(mx[1], v[1]);
    mx[2] = rcMax(mx[2], v[2]);
}

inline void rcVcopy(float* dest, const float* v)
{
    dest[0] = v[0];
    dest[1] = v[1];
    dest[2] = v[2];
}

inline float rcVdist(const float* v1, const float* v2)
{
    float dx = v2[0] - v1[0];
    float dy = v2[1] - v1[1];
    float dz = v2[2] - v1[2];
    return rcSqrt(dx*dx + dy*dy + dz*dz);
}

inline float rcVdistSqr(const float* v1, const float* v2)
{
    float dx = v2[0] - v1[0];
    float dy = v2[1] - v1[1];
    float dz = v2[2] - v1[2];
    return dx*dx + dy*dy + dz*dz;
}

inline void rcVnormalize(float* v)
{
    float d = 1.0f / rcSqrt(rcSqr(v[0]) + rcSqr(v[1]) + rcSqr(v[2]));
    v[0] *= d;
    v[1] *= d;
    v[2] *= d;
}

#endif