Wrong permissions when it is built.

Question

I maintain Vulturesclaw. http://aur.archlinux.org/packages.php?ID=14157
I was about to update but I've noticed on my old PKGBUILD though everything seems to be building fine, there is just one problem with the permissions on the $USERS/~ file. It resorts to being owned by root.
Can anyone see what I can do to change it, I have to admit I really struggled with this pkg first time around.
pkgname=vulturesclaw
pkgver=2.1.1
pkgrel=1
pkgdesc="An isometric graphics interface to Slashem."
arch=('i686' 'x86_64')
url="http://www.darkarts.co.za/projects/vultures/"
license=('custom')
depends=('sdl_mixer' 'sdl_ttf' 'sdl_image' 'libpng' 'flex' 'bison')
source=(http://usrsrc.org/svn/vultures/releases/$pkgver/vultures-$pkgver-full.tar.bz2)
md5sums=('3f0393e112407ae0e99b8da6784ec7d9')
build() {
mkdir -p $startdir/pkg/usr/bin
mkdir -p $startdir/pkg/usr/share/applications
mkdir -p $startdir/pkg/usr/share/icons/hicolor/48x48/apps
mkdir -p $startdir/pkg/usr/share/licenses
cd $startdir/src/vultures-$pkgver/slashem/sys/unix
sh setup.sh
cd $startdir/src/vultures-$pkgver/slashem/include
sed -e '/define HACKDIR/ s|/boot/apps/NetHack|/usr/share/vulturesclaw|' \
-e '/^# define COMPRESS\s/ s|/usr/bin/compress|/bin/gzip|' \
-e '/^# define COMPRESS_EXTENSION/ s|".Z"|".gz"|' \
-e 's|^/\* \(#define DLB\) \*/|\1|' -i config.h
sed -e 's|^/\* \(#define LINUX\) \*/|\1|' \
-e 's|^/\* \(#define TIMED_DELAY\) \*/|\1|' -i unixconf.h
cd $startdir/src/vultures-$pkgver/slashem
sed -e '/^GAMEUID\s*=/ s|games|root|' \
-e '/^GAMEGRP\s*=/ s|bin|root|' \
-e '/^SHELLDIR\s*=/ s|/local||' \
-e '/^GAMEDIR\s*=/ s|/local/slashemdir|/share/vulturesclaw|' -i Makefile
make || return 1
make PREFIX=$startdir/pkg/usr install
cd $startdir/pkg/usr/bin
sed -e 's|^HACKDIR=.*|HACKDIR=/usr/share/vulturesclaw|' -i vulturesclaw
install -Dm644 $startdir/src/vultures-$pkgver/slashem/dat/license $startdir/pkg/usr/share/licenses/$pkgname/license
install -Dm644 $startdir/src/vultures-$pkgver/dist/linux/vulturesclaw.desktop $startdir/pkg/usr/share/applications/vulturesclaw.desktop
install -Dm644 $startdir/pkg/usr/share/$pkgname/vulturesclaw.png $startdir/pkg/usr/share/icons/hicolor/48x48/apps/vulturesclaw.png

Answer 1

It does, but the folder seems to be only created after first time ran, so unsure how I would implement it.
I tried to use the plain vulturesclaw but that refused to compile, seemed to be looking for headers in the wrong place.
Having just updated it, the final PKGBUILD
pkgname=vulturesclaw
pkgver=2.1.2
pkgrel=1
pkgdesc="An isometric graphics interface to Slashem."
arch=('i686' 'x86_64')
url="http://clivecrous.lighthouseapp.com/projects/11282-vulture-s"
license=('custom')
depends=('sdl_mixer' 'sdl_ttf' 'sdl_image' 'libpng' 'flex' 'bison')
source=(http://downloads.usrsrc.org/vultures/$pkgver/vultures-$pkgver-full.tar.bz2)
md5sums=('d31598c0e347648896c085fc961385d7')
build() {
mkdir -p $startdir/pkg/usr/bin
mkdir -p $startdir/pkg/usr/share/applications
mkdir -p $startdir/pkg/usr/share/icons/hicolor/48x48/apps
mkdir -p $startdir/pkg/usr/share/licenses
cd $startdir/src/vultures-$pkgver/slashem/sys/unix
sh setup.sh
cd $startdir/src/vultures-$pkgver/slashem/include
sed -e '/define HACKDIR/ s|/boot/apps/NetHack|/usr/share/vulturesclaw|' \
-e '/^# define COMPRESS\s/ s|/usr/bin/compress|/bin/gzip|' \
-e '/^# define COMPRESS_EXTENSION/ s|".Z"|".gz"|' \
-e 's|^/\* \(#define DLB\) \*/|\1|' -i config.h
sed -e 's|^/\* \(#define LINUX\) \*/|\1|' \
-e 's|^/\* \(#define TIMED_DELAY\) \*/|\1|' -i unixconf.h
cd $startdir/src/vultures-$pkgver/slashem
sed -e '/^GAMEUID\s*=/ s|games|root|' \
-e '/^GAMEGRP\s*=/ s|bin|users|' \
-e '/^SHELLDIR\s*=/ s|/local||' \
-e '/^GAMEDIR\s*=/ s|/local/slashemdir|/share/vulturesclaw|' -i Makefile
make || return 1
make PREFIX=$startdir/pkg/usr install
cd $startdir/pkg/usr/bin
sed -e 's|^HACKDIR=.*|HACKDIR=/usr/share/vulturesclaw|' -i vulturesclaw
install -Dm644 $startdir/src/vultures-$pkgver/slashem/dat/license $startdir/pkg/usr/share/licenses/$pkgname/license
install -Dm644 $startdir/src/vultures-$pkgver/dist/linux/vulturesclaw.desktop $startdir/pkg/usr/share/applications/vulturesclaw.desktop
install -Dm644 $startdir/pkg/usr/share/$pkgname/vulturesclaw.png $startdir/pkg/usr/share/icons/hicolor/48x48/apps/vulturesclaw.png
As you can see I'm doing some sed in the makefile, I suspect changing the GAMEUID would work, but some how that doesn't sound like the solution or would I even know what to.