#define ROLL(BASE,INTERVAL) floor((BASE) + (INTERVAL) * drandom())
#define SGN(X) ((X) < 0 ? -1 : 1)
#define CIRCLE(X, Y) floor(distance(X, 0.0, Y, 0.0) / 125.0 + 1)
#define ROLL(BASE,INTERVAL) floor((BASE) + (INTERVAL) * drandom())
#define SGN(X) ((X) < 0 ? -1 : 1)
#define CIRCLE(X, Y) floor(distance(X, 0.0, Y, 0.0) / 125.0 + 1)