traceline(end + ('0 0 0.25' * pathlib_gridsize),end - ('0 0 1' * pathlib_gridsize),MOVE_WORLDONLY,self);
end = trace_endpos;
- if not(pointcontents(end - '0 0 1') == CONTENT_SOLID)
+ if (!(pointcontents(end - '0 0 1') == CONTENT_SOLID))
return end;
for(surface = start ; surface_z < (end_z + 32); ++surface_z)