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-#!/bin/bash
-
-# This program auto-generates colorized textures for all 89 of the Unified
-# Dyes colors, based on one or two input files.
-
-# Copyright (C) 2012-2013, Vanessa Ezekowitz
-# Email: vanessaezekowitz@gmail.com
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-if [ -z "`which convert`" ] ; then {
- echo "Please install Imagemagick."
- exit 1
-} fi
-
-if [ -z "`which bc`" ] ; then {
- echo "Please install GNU bc."
- exit 1
-} fi
-
-if [ $1 = "-t" ] ; then {
- TINT_OVERLAY=$1
- BASE=$2
- COMPOSITE=$3
-} else {
- TINT_OVERLAY=""
- BASE=$1
- COMPOSITE=$2
-} fi
-
-if [ -z $1 ] || [ $1 == "--help" ] || [ $1 == "-h" ] || [[ $1 == "-t" && -z $3 ]] ; then {
-
- echo -e "\nUsage:
-\ngentextures.sh basename [overlay_filename]
-gentextures.sh -t basename overlay_filename
-
-\nThis script requires up to three parameters which supply the base
-filename of the textures, an optional .png overlay, and possibly the
-'-t' switch. The 'basename' is the first part of the filename that your
-textures will use when your mod is done, which should almost always be
-the same as the one-word name of your mod. For example, if you supply
-the word 'mymod', this script will produce filenames like mymod_red.jpg
-or 'mymod_dark_blue_s50.jpg'. The texture that this script will read
-and recolor is derived from this parameter, and will be of the form
-'basename_base.jpg', i.e. 'mymod_base.jpg'. \nYou can also supply an
-overlay image filename. This image needs to be a .png or .gif or some
-other alpha-capable format supported by ImageMagick, and will be
-composited onto the output files after they have been colorized, but
-without being modified. This is useful when you have some part of your
-base image that will either get changed undesirably (for example, the
-mortar among several bricks, or the shading detail of a stone pattern).
-Simply draw two images: one containing the whole image to be colored,
-and one containing the parts that should not be changed, with either
-full or partial alpha transparency where the re-colored base image
-should show through. Skilled use of color and alpha on this overlay can
-lead to some interesting effects. \nIf you add '-t' as the first
-parameter, the script will switch to 'tint overlay' mode. For this mode
-to work, you must also supply the base name as usual, and you must
-include an overlay image filename. Rather than re-color the base
-texture, the script will alter the hue/saturation/value of the overlay
-texture file instead, and leave the base texture unchanged. When using
-this mode, the base texture should be drawn in some neutral color, but
-any color is fine if it results in what you wanted.\n"
-
-
- exit 1
-} fi
-
-if [[ ! -e $BASE"_base.jpg" ]]; then {
- echo -e "\nThe basename '"$BASE"_base.jpg' was not found."
- echo -e "\nAborting.\n"
- exit 1
-} fi
-
-if [[ ! -z $COMPOSITE && ! -e $COMPOSITE ]]; then {
- echo -e "\nThe requested composite file '"$COMPOSITE"' was not found."
- echo -e "\nAborting.\n"
- exit 1
-} fi
-
-convert $BASE"_base.jpg" -modulate 1,2,3 tempfile.jpg 1>/dev/null 2>/dev/null
-
-if (( $? )) ; then {
- echo -e "\nImagemagick failed while testing the base texture file."
- echo -e "\nEither the base file '"$BASE"_base.jpg' isn't an image,"
- echo "or it is broken, or Imagemagick itself just didn't work."
- echo -e "\nPlease check and correct your base image and try again."
- echo -e "\nAborting.\n"
- exit 1
-} fi
-
-if [ ! -z $COMPOSITE ] ; then {
- convert $BASE"_base.jpg" -modulate 1,2,3 $COMPOSITE -composite tempfile.jpg 1>/dev/null 2>/dev/null
-
- if (( $? )) ; then {
- echo -e "\nImagemagick failed while testing the composite file."
- echo -e "\nEither the composite file '"$COMPOSITE"' isn't an image"
- echo "or it is broken, or Imagemagick itself just didn't work."
- echo -e "\nPlease check and correct your composite image and try again."
- echo -e "\nAborting.\n"
- exit 1
- } fi
-} fi
-
-rm tempfile.jpg
-
-base_colors="red orange yellow lime green aqua cyan skyblue blue violet magenta redviolet"
-
-echo -e -n "\nGenerating filenames based on "$BASE"_base.jpg"
-if [ ! -z $COMPOSITE ] ; then {
- echo ","
- echo -n "using "$COMPOSITE" as an overlay"
-} fi
-
-if [ ! -z $TINT_OVERLAY ] ; then {
- echo ","
- echo -n "and tinting the overlay instead of the base texture"
-} fi
-
-echo -e "...\n"
-
-mkdir -p generated-textures
-
-function generate_texture () {
- name=$1
- h=$2
- s=$3
- v=$4
- if [ -z $TINT_OVERLAY ]; then {
- if [ -z $COMPOSITE ]; then {
- convert $BASE"_base.jpg" -modulate $v,$s,$h -quality 97 "generated-textures/"$BASE"_"$name".jpg"
- } else {
- convert $BASE"_base.jpg" -modulate $v,$s,$h -quality 97 $COMPOSITE -composite "generated-textures/"$BASE"_"$name".jpg"
- } fi
- } else {
- convert $COMPOSITE -modulate $v,$s,$h -quality 97 MIFF:- | composite MIFF:- $BASE"_base.jpg" "generated-textures/"$BASE"_"$name".jpg"
- } fi
-}
-
-hue=0
-for color_name in $base_colors ; do
- hue2=`echo "scale=10; ("$hue"*200/360)+100" |bc`
- echo $color_name "("$hue" degrees)"
- echo " dark"
- generate_texture "dark_"$color_name $hue2 100 33
- echo " medium"
- generate_texture "medium_"$color_name $hue2 100 66
- echo " full"
- generate_texture $color_name $hue2 100 100
- echo " light"
- generate_texture "light_"$color_name $hue2 100 150
- echo " dark, 50% saturation"
- generate_texture "dark_"$color_name"_s50" $hue2 50 33
- echo " medium, 50% saturation"
- generate_texture "medium_"$color_name"_s50" $hue2 50 66
- echo " full, 50% saturation"
- generate_texture $color_name"_s50" $hue2 50 100
- hue=$((hue+30))
-done
-
-echo "greyscales"
-echo " black"
-generate_texture black 0 0 15
-echo " dark grey"
-generate_texture darkgrey 0 0 50
-echo " medium grey"
-generate_texture grey 0 0 100
-echo " light grey"
-generate_texture lightgrey 0 0 150
-echo " white"
-generate_texture white 0 0 190