Add crispy-doom

src/crispy-doom/.gitignore

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+*.pkg.tar*
+*.src.tar*
+*.gz
+src
+pkg

src/crispy-doom/PKGBUILD

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+# Maintainer: Mike Swanson <mikeonthecomputer@gmail.com>
+
+pkgname=crispy-doom
+pkgdesc="Vanilla-compatible enhanced Doom engine"
+pkgver=5.4
+pkgrel=1
+arch=('i686' 'x86_64')
+url="http://fabiangreffrath.github.io/crispy-doom"
+license=('GPL2')
+depends=('libpng' 'libsamplerate' 'sdl2_mixer' 'sdl2_net')
+makedepends=('python')
+optdepends=('freedm: Free deathmatch game'
+            'freedoom1: Free Ultimate Doom-compatible game'
+            'freedoom2: Free Doom II/Final Doom-compatible game')
+install=crispy-doom.install
+source=(https://github.com/fabiangreffrath/$pkgname/archive/$pkgname-$pkgver.tar.gz)
+sha512sums=('aa3dedfc5517e5347a9b0b25b2926f58a9bf470ec9879e61d67be3acbd3051cece4a3eb74d7fea2b5c373e808b50f86f82add3da25ec0f1111a52ed5662f1e5f')
+
+prepare() {
+  # GitHub's generated archive prefix kind of sucks.
+  mv "$pkgname-$pkgname-$pkgver" "$pkgname-$pkgver"
+  cd "$pkgname-$pkgver"
+
+  for patch in ../*.patch; do
+    if [ ! -f "$patch" ]; then
+      break;
+    else
+      patch -p1 -i "$patch"
+    fi
+  done
+}
+
+build() {
+  cd "$pkgname-$pkgver"
+
+  ./autogen.sh --prefix=/usr
+  make
+}
+
+package() {
+  cd "$pkgname-$pkgver"
+
+  make DESTDIR="$pkgdir" install
+
+  cd "$pkgdir"/usr
+  rm -rf share/man/man5/default.cfg.5              \
+         share/man/man6/chocolate-{server,setup}.6
+}

src/crispy-doom/crispy-doom.install

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+post_install() {
+cat <<EOF
+To install game data (*.wad files), there are two main locations for
+the engine to easily find them:
+ * For all users: /usr/share/games/doom
+ * For a single user: ~/.local/share/games/doom
+
+Files such as doom2.wad, heretic.wad, hexen.wad, and strife1.wad are
+appropriate for installation and usage with Chocolate engines.
+
+In order to allow co-existence with Chocolate Doom, the following
+manual pages have been removed:
+  default.cfg heretic.cfg hexen.cfg strife.cfg
+They are identical to and are available in the Chocolate Doom packages
+instead.
+EOF
+}