unifieddyes/README

VanessaE's Unified Dyes
=======================

This is a pretty extensive dyes mod, which has the sole purpose of supplying a 
complete set of colors and a few greys, all of which are intended to be used by 
other mods as needed to make colored objects.  It uses Ironzorg's Flowers mod 
as the source of the actual pigments.  Flowers can be had from one of the links 
below, or as part of neko259's Nature Pack.

In total, this mod provides 77 colors and greys.

Dependencies: flowers

Recommends: buckets, junglegrass

License:  For the buckets of paint, cc-by-sa 3.0.  For everything else, WTFPL.


Usage instructions, technical information
=========================================

Colors

Creating a particular color of dye is pretty simple - just harvest coal, 
cactus, or the appropriate flowers and start smelting them and crafting the 
results together to get the various colors.  There are 12 base colors, which 
are formed as follows (the degree figure is that color's hue on a standard HSV 
color wheel, and is what is used in the textures supplied with this mod):

Red (0°):  smelt one rose (yields 2 portions of red dye)
Orange (30°):  smelt one tulip (yields 2) or mix red+yellow (yields 2)
Yellow (60°):  smelt one yellow dandelion (yields 2)
Lime (90°):  mix yellow + green (yields 2)
Green (120°): smelt one cactus or one waterlily (yields 2), or mix 
              yellow + blue (yields 2)
Aqua (150°):  mix green + cyan (yields 2)
Cyan (180°):  green + blue (yields 2)
Sky blue (210°):  mix cyan + blue (yields 2)
Blue (240°): Smelt one viola (yields 2)
Violet (270°):  mix blue + magenta (yields 2) or mix 
                2 blues + 1 red (yields 3)
Magenta (300°):  Mix blue + red (yields 2)
Red-violet (330°):  mix magenta + red (yields 2)


Greys
-----

There are also three shades of grey plus pure black and pure white (figures in 
parenthesis indicate the intended brightness of the shade, relative to white):

Black (0%):  smelt one piece of coal (yields 2)
Dark grey (25%):  mix one portion of white paint with two portions of black
                  dye (yields 3)
Medium grey (50%):  mix one white and one black (yields 2)
Light grey (75%):  Mix two white and one black (yields 3)
White (100%):  See below.


White Paint
-----------

To get the white paint mentioned above, first smelt some cobble into smooth 
stone as usual.  Then, smelt one smooth stone block to get 10 portions of 
Titanium Dioxide.  Finally, craft one portion of that with a bucket of water 
and one piece of jungle grass.  Yields one bucket of white paint.


Darker colors
-------------

To obtain a medium-brightness (66%) version of a given color, mix the desired 
base color from the list above with one portion of black dye (for example, 
medium lime = lime + black).  All such mixtures yield two portions of the final 
color.

To obtain a dark (33%) version of a given color, use two portions of black dye 
along with the base color, which yields three portions of the final color.


Low-saturation colors
---------------------

To get the low saturation (50%) version of one of the base colors, mix one or 
more of white, black, or a shade of grey with the desired base color:

Dark, low saturation: dark grey paint + color (yields 2), or two blacks + 1 
white + color (yields 4).  For example, dark, low-saturation red = red + dark 
grey paint, or red + two black + one white.

Medium brightness, low saturation: medium grey paint + color (yields 2), or 
black + white + color (yields 3).  For example, medium, low-saturation green = 
green + medium grey, or green + black + white.

Bright, low saturation: light grey + color (yields 2), or 1 black + 2 whites + 
color (yields 4).  For example, bright, low-saturation blue = blue + light 
grey, or blue + black + 2 white.


RGB values
----------

All RGB values and filenames for all colors and shades of grey are represented 
in the file "colors.txt" (which is generated with the bash script 
"listcolors.sh"), included in the distribution directory.


Misc. Notes
-----------

If you need to use /give commands, the node names are of the following format:

unifieddyes:{nothing or "medium_" or "dark_"}{color}{nothing or "_s50"}.

For example, low saturation dark yellow would be "unifieddyes:dark_yellow_s50", 
while bright, full-saturation red would simply be "unifieddyes:red".

See the texture filenames in the textures/ folder for further hints - all of 
the item names follow the same format as the filenames, save for having a colon 
(:) instead of the first underscore (_).


Semi-automatic generation of new textures
=========================================

Obviously, in order for this mod to be useful, you'll need textures to use with 
your crafting recipes.  If you plan to support the entire range of colors 
supplied by this mod, there is a BASH script included in the distribution 
directory, named gentextures.sh, which will, with an appropriately- colored and 
appropriately-named source texture, generate a complete set of colored and 
greyscale textures based on that first one.

This script requires bc (the calculator program) to handle some basic math 
regarding the hue adjustments, and Imagemagick's "convert" program handles all 
of the actual conversions.

To make this script for your mod, open it in your favorite editor and change 
the TEXTURE variable near the top of the file to whatever your particular mod 
will use as the basis of its texture filenames.  For example, the default is 
cotton, so the files created by the script will be named cotton_xxxxxx.png for 
each of the supported colors.

Then, using your favorite image editor, create a single version of your desired 
texture.  Draw it in the brightest, deepest shade of RED you can muster without 
losing any detail, and save it out.  Ideally, you will want the average color 
of the texture, when taking into account all bright and dark areas, to be as 
close as possible to the hex value #FF0000 (0 degrees, 100% saturation, pure 
red) without losing any appreciable #detail

Save this source texture out with a filename of red_base_whatever.png, where 
"whatever" is the same name you used in the TEXTURE variable above.  The 
default cotton setting, thus, would need a filename of red_base_cotton.png.

Copy the gentextures.sh script to the same directory where you placed the base 
texture, chmod 755 gentextures.sh if necessary, and run it using the usual 
dot-slash notation: ./gentextures.sh

The program will exit immediately if it can't find the base texture it needs 
(i.e. if you didn't supply it, or if you named it wrong, or if it isn't it in 
the same directory as the script).

Otherwise, the program will create a new folder named generated-textures/ and 
then iterate through all of the hues and shades that are supported by 
unifieddyes (though this is done manually, not by reading anything from the 
mod).  All of the output files will be placed in that folder.

Use your favorite image browser or file manager to review the results, and if 
they're right, copy them over to the textures/ folder in your mod.


Example Code
============

Along with this mod, you should also download my modding template, which is 
quite easy to transform into whatever mod you want to create that needs 
unifieddyes.

It's just a skeleton, but all you should need to do to get started is to rename 
the folder to whatever your mod will be named, tweak a few variables near the 
start of the template's init.lua, and follow the above instructions regarding 
the creation of your textures.

If you do it right, you should end up with a very basic mod giving you craft 
and /give access to your various items.  After that part is confirmed working, 
just add whatever code you need to the end of the init.lua to define additional 
functions, items, crafts, and smelting recipes, etc., as needed by your mod, 
and start coding and testing like usual.

This template is not supplied as part of the unifieddyes mod, rather you need
fetch it separately from here:

Download Template:  https://github.com/VanessaE/modtemplate/zipball/master
...or browse the code:  https://github.com/VanessaE/modtemplate