ExchangeClone/zzzz_exchangeclone_init/init.lua

exchangeclone = {recipes = {}, base_energy_values = {}, group_values = {}}

if (not minetest.get_modpath("mcl_core")) and (not minetest.get_modpath("default")) then
    error("ExchangeClone requires Minetest Game, MineClone2, or MineClonia (and possibly variant subgames).\nPlease use one of those games.")
else
	exchangeclone.mcl = minetest.get_modpath("mcl_core")
end

exchangeclone.mineclonia = minetest.get_game_info().id == "mineclonia" -- if exchangeclone.mineclonia, exchangeclone.mcl is also defined.
exchangeclone.pipeworks = minetest.get_modpath("pipeworks")
exchangeclone.orb_max = minetest.settings:get("exchangeclone.orb_max") or 51200000 -- Max capacity of Klein Star Omega in ProjectE
exchangeclone.keep_data = minetest.settings:get_bool("exchangeclone.keep_data", false)

local modpath = minetest.get_modpath("zzzz_exchangeclone_init")
dofile(modpath.."/lib.lua")

-- Override crafting
local old_func = minetest.register_craft
function minetest.register_craft(data, ...)
    local itemstring = ItemStack(data.output):get_name()
    local allowed = true
    -- Skip thousands of banner recipes in MCL2
    -- This does mean that if other banner recipes exist that don't use wool (or carpet),
    -- they will be ignored in MCL2... but I can't think of a better way to do this.
    if exchangeclone.mcl and not exchangeclone.mineclonia then
        if itemstring:sub(1, #"mcl_banners:") == "mcl_banners:" then
            allowed = false
            if data.type and data.type == "shaped" then
                for _, row in ipairs(data.recipe) do
                    for _, item in ipairs(row) do
                        if item:sub(1, #"mcl_wool:") == "mcl_wool:" then
                            allowed = true
                            break
                        end
                    end
                    if allowed then break end
                end
            end
        end
    end
    if allowed then
        exchangeclone.register_craft(data)
    end
    old_func(data, ...)
end

exchangeclone.register_craft_type("shaped", "shaped")
exchangeclone.register_craft_type("shapeless", "shapeless")
exchangeclone.register_craft_type("cooking", "cooking")

if minetest.get_modpath("technic") then
    exchangeclone.register_craft_type("technic", "shapeless")
    function exchangeclone.register_technic_recipe(typename, recipe)
        local data = technic.recipes[typename]
        if data.output_size == 1 then
            local result = {recipe = recipe.input, output = recipe.output, type = "technic"}
            exchangeclone.register_craft(result)
        end
    end
end

dofile(modpath.."/base_energy_values.lua")