minetest_colorcubes/init.lua

local cc = {}
cc.colors = { "white", "yellow", "orange", "red", "redviolet", "magenta", "violet", "blue", "skyblue", "cyan", "aqua", "green", "lime", "pink", "brown", "dark_green", "light_gray", "dark_gray", "black" }
cc.dyecolors = { "unicolor_white", "unicolor_yellow", "unicolor_orange", "unicolor_red", "unicolor_red_violet", "unicolor_magenta", "unicolor_violet", "unicolor_blue", "unicolor_sky_blue", "unicolor_cyan", "unicolor_aqua", "unicolor_green", "unicolor_lime", "unicolor_light_red", "unicolor_dark_orange", "unicolor_dark_green", "unicolor_grey", "unicolor_darkgrey", "unicolor_black" }
cc.human_colors = { "white", "yellow", "orange", "red", "red-violet", "magenta", "violet", "blue", "skyblue", "cyan", "aqua", "green", "lime", "pink", "brown", "dark green", "light gray", "dark gray", "black" }

local light_level = 14

for i=1,#cc.colors do
	local c = cc.colors[i]
	local h = cc.human_colors[i]
	local nodedef1 = {
		description = h.." abstract block",
		tiles = { "colorcubes_1_"..c..".png" },
		groups = { dig_immediate = 2 },
		sounds = { footstep = { name = "colorcubes_block_footstep", gain = 0.5 } }
	}
	local nodedef_window = {
		description = h.." abstract window block",
		tiles = { "colorcubes_window_"..c..".png" },
		inventory_image = minetest.inventorycube("colorcubes_window_"..c..".png"),
		groups = { dig_immediate = 2 },
		use_texture_alpha = true,
		drawtype = "glasslike",
		sunlight_propagates = true,
		paramtype = "light",
	}
	local nodedef4 = {
		description = h.." tiled abstract block",
		tiles = { "colorcubes_4_"..c..".png" },
		groups = { dig_immediate = 2 },
		sounds = { footstep = { name = "colorcubes_block_footstep", gain = 0.5 } }
	}
	local nodedef_inward = {
		description = h.." inward abstract block",
		tiles = { "colorcubes_inward_"..c..".png" },
		groups = { dig_immediate = 2 },
		sounds = { footstep = { name = "colorcubes_block_footstep", gain = 0.5 } }
	}
	if light_level > 1 then
		local nodedef_light = {
			description = h.." abstract lamp",
			tiles = { "colorcubes_light_"..c..".png" },
			groups = { dig_immediate = 2 },
			sounds = { footstep = { name = "colorcubes_block_footstep", gain = 0.5 } },
			light_source = light_level,
		}
		minetest.register_node("colorcubes:"..c.."_light", nodedef_light)
		light_level = light_level - 1
	end

	minetest.register_node("colorcubes:"..c.."_single", nodedef1)
	minetest.register_node("colorcubes:"..c.."_window", nodedef_window)
	minetest.register_node("colorcubes:"..c.."_tiled", nodedef4)
	minetest.register_node("colorcubes:"..c.."_inward", nodedef_inward)

	--[[ If the paint_roller mod is installed, register the nodes to it ]]
	if(minetest.get_modpath("paint_roller") ~= nil) then
		local d = cc.dyecolors[i]
		paint_roller.register_one("colorcubes:"..c.."_single", d, "Simple Abstract Blocks" )
		paint_roller.register_one("colorcubes:"..c.."_tiled", d, "Tiled Abstract Blocks" )
		paint_roller.register_one("colorcubes:"..c.."_inward", d, "Inwardly-Patterend Abstract Blocks" )
		paint_roller.register_one("colorcubes:"..c.."_window", d, "Abstract Window Block" )
	end

	minetest.register_craft({
		output = "colorcubes:"..c.."_tiled 4",
		recipe = {
			{"colorcubes:"..c, "colorcubes:"..c },
			{"colorcubes:"..c, "colorcubes:"..c },
		},
	})
end