tracebox(this.origin, this.mins, this.maxs, this.origin - '0 0 1', MOVE_NOMONSTERS, this);
if (trace_dphitq3surfaceflags & Q3SURFACEFLAG_SLICK)
{
tracebox(this.origin, this.mins, this.maxs, this.origin - '0 0 1', MOVE_NOMONSTERS, this);
if (trace_dphitq3surfaceflags & Q3SURFACEFLAG_SLICK)
{