portal: combating the space-detection issue. what needs to be tweaked next is how far away objects are spawned. it should either be a trial&error adjustment or depend on the object's moving direction and the portal's angle in order to avoid issues with box collisions. if the spawn distance to the portal is just a fixed value (as it was before this patch) or a constant factor (it is now) it can be too big for "nice" portal angles (in tight gaps with still enough space, but -> denied) and too small for bad angles (box collision esp. on big objects like barrels -> denied)

#! /usr/bin/sed -nf

s/^#define  *FREETYPE_MAJOR  *\([^ ][^ ]*\).*$/freetype_major="\1" ;/p
s/^#define  *FREETYPE_MINOR  *\([^ ][^ ]*\).*$/freetype_minor=".\1" ;/p
s/^#define  *FREETYPE_PATCH  *\([^ ][^ ]*\).*$/freetype_patch=".\1" ;/p