server-nalc/minetestforfun_game/mods/wool/init.lua

local wool = {}
-- This uses a trick: you can first define the recipes using all of the base
-- colors, and then some recipes using more specific colors for a few non-base
-- colors available. When crafting, the last recipes will be checked first.

wool.dyes = {
	{"white",      "White",      "basecolor_white"},
	{"grey",       "Grey",       "basecolor_grey"},
	{"black",      "Black",      "basecolor_black"},
	{"red",        "Red",        "basecolor_red"},
	{"yellow",     "Yellow",     "basecolor_yellow"},
	{"green",      "Green",      "basecolor_green"},
	{"cyan",       "Cyan",       "basecolor_cyan"},
	{"blue",       "Blue",       "basecolor_blue"},
	{"magenta",    "Magenta",    "basecolor_magenta"},
	{"orange",     "Orange",     "excolor_orange"},
	{"violet",     "Violet",     "excolor_violet"},
	{"brown",      "Brown",      "unicolor_dark_orange"},
	{"pink",       "Pink",       "unicolor_light_red"},
	{"dark_grey",  "Dark Grey",  "unicolor_darkgrey"},
	{"dark_green", "Dark Green", "unicolor_dark_green"},
}

for _, row in ipairs(wool.dyes) do
	local name = row[1]
	local desc = row[2]
	local craft_color_group = row[3]
	-- Node Definition
	minetest.register_node("wool:"..name, {
		description = desc.." Wool",
		tiles = {"wool_"..name..".png"},
		is_ground_content = false,
		groups = {snappy = 2, choppy = 2, oddly_breakable_by_hand = 3,
				flammable = 3, wool = 1},
		sounds = default.node_sound_defaults(),
	})
	if craft_color_group then
		-- Crafting from dye and white wool
		minetest.register_craft({
			type = "shapeless",
			output = "wool:" .. name,
			recipe = {"group:dye," .. craft_color_group, "group:wool"},
		})
	end
end


-- legacy

-- Backwards compatibility with jordach's 16-color wool mod
minetest.register_alias("wool:dark_blue", "wool:blue")
minetest.register_alias("wool:gold", "wool:yellow")