Function iSphereBoundVec

src/SB/Core/gc/iMath3.cpp:109–153

}

void iSphereBoundVec(xSphere* o, const xSphere* s, const xVec3* v)
{
    F32 scale;
    xSphere temp;
    xSphere* tp;
    U32 usetemp;
    xIsect isx;

    usetemp = (o == s);

    iSphereIsectVec(s, v, &isx);

    if (isx.penned <= 0.0f)
    {
        if (!usetemp)
        {
            memcpy(o, s, sizeof(xSphere));
        }
    }
    else
    {
        if (usetemp)
        {
            tp = &temp;
        }
        else
        {
            tp = o;
        }

        xVec3Copy(&tp->center, &isx.norm);

        scale = (isx.dist - s->r) / (2.0f * isx.dist);

        xVec3SMul(&tp->center, &tp->center, scale);
        xVec3Add(&tp->center, &tp->center, &s->center);

        tp->r = 0.5f * (isx.dist + s->r);

        if (usetemp)
        {
            memcpy(o, tp, sizeof(xSphere));
        }
    }
}

void iCylinderIsectVec(const xCylinder* c, const xVec3* v, xIsect* isx)
{