static variable RNG in Segment.cpp

[Manuel A. Fernandez Montecelo]

This is in the middle of Segment.cpp, between functions, so it's difficult to spot.

Being static might cause threading issues (maybe not in this case if it's accessed read-only, I don't know).

Also, the out of namespace function randHalf() is directly below it.

Maybe there's a better place to put both of them, and if RNG would have threading issues, it would be better to have one instance per object.

// the random number generator
static WFMath::MTRand rng;

// generate a rand num between -0.5...0.5
inline float randHalf()
{
    //return (float) rand() / RAND_MAX - 0.5f;
    double r=rng();
    return r - 0.5;
}

[Al Riddoch (alriddoch)]

Nice fix, like it.