+ # does texture exist?
+ if \
+ [ -f "../$2.tga" ] || \
+ [ -f "../$2.jpg" ] || \
+ [ -f "../$2.png" ]; then
+ :
+ else
+ if [ "$3" = "shader" ]; then
+ return
+ else
+ echo "(EE) shader $1 uses non-existing texture $2"
+ fi
+ fi
+ textures_used="$textures_used$LF$2"
+
+ if [ -n "$allowed_prefixes" ]; then
+ ok=false
+ for p in $allowed_prefixes; do
+ case "$1:" in
+ "$p"*)
+ ok=true
+ ;;
+ esac
+ done
+ else
+ ok=true
+ fi
+ for p in $forbidden_prefixes; do
+ case "$1:" in
+ "$p"*)
+ ok=false
+ ;;
+ esac
+ done
+ if ! $ok; then
+ echo "(EE) shader $1 is not allowed in this shader file (allowed: $allowed_prefixes, forbidden: $forbidden_prefixes)"
+ fi
+
+ case "$3" in
+ ## RULE: skyboxes must lie in env/
+ sky)
+ case "$2" in
+ env/*)
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, $3 textures must be in env/"
+ ;;
+ esac
+ ;;
+ ## RULE: non-skyboxes must not lie in env/
+ *)
+ case "$2" in
+ env/*)
+ echo "(EE) texture $2 of shader $1 is out of place, $3 textures must not be in env/"
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ esac
+
+ # verify shader -> texture name
+ case "$1" in
+ ## RULE: textures/FOOx/BAR-BAZ must use textures/FOOx/*/*, recommended textures/FOOx/BAR/BAZ
+ textures/*x/*-*)
+ pre=${1%%x/*}x
+ suf=${1#*x/}
+ suf="`echo "$suf" | sed 's,-,/,g'`"
+ case "$2" in
+ "$pre"/*/*)
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, recommended file name is $pre/$suf"
+ ;;
+ esac
+ ;;
+ ## RULE: textures/FOOx/BAR must use textures/FOOx/*/*, recommended textures/FOOx/base/BAR
+ textures/*x/*)
+ pre=${1%%x/*}x
+ suf=${1#*x/}
+ case "$2" in
+ "$pre"/*/*)
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, recommended file name is $pre/base/$suf"
+ ;;
+ esac
+ ;;
+ ## RULE: textures/map_FOO[_/]* must use textures/map_FOO[_/]*
+ textures/map_*/*)
+ pre=${1%%/map_*}
+ suf=${1#*/map_}
+ map=${suf%%[_/]*}
+ case "$2" in
+ "$pre"/map_$map[/_]*)
+ ;;
+ textures/map_*)
+ # protect one map's textures from the evil of other maps :P
+ echo "(EE) texture $2 of shader $1 is out of place, recommended file name is $pre/map_$map/*"
+ ;;
+ *)
+ # using outside stuff is permitted
+ ;;
+ esac
+ ;;
+ ## RULE: textures/common/FOO must use textures/common/FOO or textures/common/*/*
+ textures/common/*)
+ case "$2" in
+ "$1")
+ ;;
+ textures/common/*/*)
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, recommended file name is $1 or textures/common/*/*"
+ ;;
+ esac
+ ;;
+ ## RULE: textures/FOO/* must use textures/FOO/*, for FOO in decals, liquids_water, liquids_slime, liquids_lava, warpzone
+ textures/decals/*|textures/liquids_water/*|textures/liquids_slime/*|textures/liquids_lava/*|textures/warpzone/*)
+ pre=${1%/*}
+ case "$2" in
+ "$pre"/*)
+ # I _suppose_ this is fine, as tZork committed this pack
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, recommended file name is $1"
+ ;;
+ esac
+ ;;
+ ## RULE: textures/skies/FOO or textures/skies/FOO_BAR must use textures/skies/FOO respective textures/skies/FOO_BAR as preview image, and env/FOO[_/]* as skybox
+ textures/skies/*)
+ sky=${1#textures/skies/}
+ sky=${sky%%_*}
+ case "$2" in
+ "$1")
+ # typical place for preview image
+ ;;
+ env/$sky[/_]*)
+ # typical place for skybox
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, recommended file name is $1"
+ ;;
+ esac
+ ;;
+ ## RULE: models/* must use models/*
+ models/*)
+ case "$2" in
+ models/*)
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, recommended file name is $1 or models/*"
+ ;;
+ esac
+ ;;
+ *)
+ echo "(EE) no shader name pattern for $1"
+ ;;
+ esac