mods/cblocks/init.lua

local stairs_mod = minetest.get_modpath("stairs")
local stairsplus_mod = minetest.global_exists("stairsplus")
local ethereal_mod = minetest.get_modpath("ethereal")


local colours = {
	{"black",      "Black",      "#000000b0"},
	{"blue",       "Blue",       "#015dbb70"},
	{"brown",      "Brown",      "#a78c4570"},
	{"cyan",       "Cyan",       "#01ffd870"},
	{"dark_green", "Dark Green", "#005b0770"},
	{"dark_grey",  "Dark Grey",  "#303030b0"},
	{"green",      "Green",      "#61ff0170"},
	{"grey",       "Grey",       "#5b5b5bb0"},
	{"magenta",    "Magenta",    "#ff05bb70"},
	{"orange",     "Orange",     "#ff840170"},
	{"pink",       "Pink",       "#ff65b570"},
	{"red",        "Red",        "#ff000070"},
	{"violet",     "Violet",     "#2000c970"},
	{"white",      "White",      "#abababc0"},
	{"yellow",     "Yellow",     "#e3ff0070"},
}


local function cblocks_stairs(nodename, def)

	minetest.register_node(nodename, def)

	if stairs_mod or stairsplus_mod then

		local mod, name = nodename:match("(.*):(.*)")

		for groupname, value in pairs(def.groups) do

			if groupname ~= "cracky"
			and groupname ~= "choppy"
			and groupname ~="flammable"
			and groupname ~="crumbly"
			and groupname ~="snappy" then
				def.groups.groupname = nil
			end
		end

		if stairsplus_mod then

			stairsplus:register_all(mod, name, nodename, {
				description = def.description,
				tiles = def.tiles,
				groups = def.groups,
				sounds = def.sounds,
			})

		elseif stairs_mod and stairs
		and stairs.mod and stairs.mod == "redo" then

			stairs.register_all(name, nodename,
				def.groups,
				def.tiles,
				def.description,
				def.sounds
			)

		elseif stairs_mod and not stairs.mod then

			stairs.register_stair_and_slab(name, nodename,
				def.groups,
				def.tiles,
				("%s Stair"):format(def.description),
				("%s Slab"):format(def.description),
				def.sounds
			)
		end
	end
end


local function set_alias(col, name)

minetest.register_alias("stairs:stair_" .. col .. "_" .. name,
		"stairs:stair_" .. name .. "_" .. col)

minetest.register_alias("stairs:slab_" .. col .. "_" .. name,
		"stairs:slab_" .. name .. "_" .. col)

minetest.register_alias("stairs:stair_inner_" .. col .. "_" .. name,
		"stairs:stair_inner_" .. name .. "_" .. col)

minetest.register_alias("stairs:stair_outer_" .. col .. "_" .. name,
		"stairs:stair_outer_" .. name .. "_" .. col)

minetest.register_alias("stairs:slope_" .. col .. "_" .. name,
		"stairs:slope_" .. name .. "_" .. col)
end


for i = 1, #colours, 1 do

-- stone brick

cblocks_stairs("cblocks:stonebrick_" .. colours[i][1], {
	description = colours[i][2] .. " Stone Brick",
	tiles = {"default_stone_brick.png^[colorize:" .. colours[i][3]},
	paramtype = "light",
	is_ground_content = false,
	groups = {cracky = 2, stone = 1},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_craft({
	output = "cblocks:stonebrick_".. colours[i][1] .. " 2",
	recipe = {
		{"default:stonebrick","default:stonebrick", "dye:" .. colours[i][1]},
	}
})

-- glass (no stairs unless stairs redo active because default stairs mod
-- does not support transparent stairs)

if stairs_mod and stairs and stairs.mod and stairs.mod == "redo" then

	cblocks_stairs("cblocks:glass_" .. colours[i][1], {
		description = colours[i][2] .. " Glass",
		tiles = {"cblocks.png^[colorize:" .. colours[i][3]},
		drawtype = "glasslike",
		paramtype = "light",
		sunlight_propagates = true,
		use_texture_alpha = true,
		is_ground_content = false,
		groups = {cracky = 3, oddly_breakable_by_hand = 3},
		sounds = default.node_sound_glass_defaults(),
	})

	set_alias(colours[i][1], "glass")
else
	minetest.register_node("cblocks:glass_" .. colours[i][1], {
		description = colours[i][2] .. " Glass",
		tiles = {"cblocks.png^[colorize:" .. colours[i][3]},
		drawtype = "glasslike",
		paramtype = "light",
		sunlight_propagates = true,
		use_texture_alpha = true,
		is_ground_content = false,
		groups = {cracky = 3, oddly_breakable_by_hand = 3},
		sounds = default.node_sound_glass_defaults(),
	})
end

minetest.register_craft({
	output = "cblocks:glass_".. colours[i][1] .. " 2",
	recipe = {
		{"default:glass","default:glass", "dye:" .. colours[i][1]},
	}
})

-- wood

local col = colours[i][1]

-- ethereal already has yellow wood so rename to yellow2
if ethereal_mod and col == "yellow" then
	col = "yellow2"
end

cblocks_stairs("cblocks:wood_" .. col, {
	description = colours[i][2] .. " Wooden Planks",
	tiles = {"default_wood.png^[colorize:" .. colours[i][3]},
	paramtype = "light",
	is_ground_content = false,
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 3, wood = 1},
	sounds = default.node_sound_wood_defaults(),
})

set_alias(colours[i][1], "wood")

minetest.register_craft({
	output = "cblocks:wood_".. col .. " 2",
	recipe = {
		{"group:wood","group:wood", "dye:" .. colours[i][1]},
	}
})

end


-- add lucky blocks
if minetest.get_modpath("lucky_block") then
lucky_block:add_blocks({
	{"dro", {"cblocks:wood_"}, 10, true},
	{"dro", {"cblocks:stonebrick_"}, 10, true},
	{"dro", {"cblocks:glass_"}, 10, true},
	{"exp"},
})
end


print ("[MOD] Cblocks loaded")