Function xSweptSphereToTriangle

src/SB/Core/x/xCollide.cpp:1363–1565

    F32 rad = sws->radius;

    if ((xform[0].x <= -rad && xform[1].x <= -rad && xform[2].x <= -rad) ||
        (xform[0].x >= rad && xform[1].x >= rad && xform[2].x >= rad) ||
        (xform[0].y <= -rad && xform[1].y <= -rad && xform[2].y <= -rad) ||
        (xform[0].y >= rad && xform[1].y >= rad && xform[2].y >= rad) ||
        (xform[0].z <= 0.0f && xform[1].z <= 0.0f && xform[2].z <= 0.0f) ||
        (xform[0].z >= sws->curdist + rad && xform[1].z >= sws->curdist + rad &&
         xform[2].z >= sws->curdist + rad))
    {
        return 0;
    }

    xVec3 var_10C;
    F32 f1;
    var_10C.x = (xform[1].y - xform[0].y) * (xform[2].z - xform[0].z) -
                (xform[1].z - xform[0].z) * (xform[2].y - xform[0].y);
    var_10C.y = (xform[1].z - xform[0].z) * (xform[2].x - xform[0].x) -
                (xform[1].x - xform[0].x) * (xform[2].z - xform[0].z);
    var_10C.z = (xform[1].x - xform[0].x) * (xform[2].y - xform[0].y) -
                (xform[1].y - xform[0].y) * (xform[2].x - xform[0].x);
    _rwV3dNormalizeMacro(f1, (RwV3d*)&var_10C, (RwV3d*)&var_10C);
    if (isnan(var_10C.x))
    {
        return 0;
    }

    F32 f1_0 = xform[0].x * var_10C.x + xform[0].y * var_10C.y + xform[0].z * var_10C.z;
    F32 f0 = f1_0 - var_10C.z * sws->curdist;
    if ((f1_0 >= rad && f0 >= rad) || (f1_0 <= -rad && f0 <= -rad))
    {
        return 0;
    }

    if (xabs(var_10C.z) > 0.001f)
    {
        F32 f8_0 = 1.0f / var_10C.z;
        F32 f2_0 = var_10C.x * xform[0].x + var_10C.y * xform[0].y + var_10C.z * xform[0].z;
        F32 f0 = f8_0 * f2_0 - xabs(rad * f8_0);
        if (f0 >= sws->curdist)
        {
            return 0;
        }
        if (f0 <= -rad)
        {
            return 0;
        }
        xVec3 var_118;
        if (var_10C.z < 0.0f)
        {
            var_118.x = -rad * var_10C.x;
            var_118.y = -rad * var_10C.y;
            var_118.z = f0 - rad * var_10C.z;
        }
        else
        {
            var_118.x = rad * var_10C.x;
            var_118.y = rad * var_10C.y;
            var_118.z = rad * var_10C.z + f0;