Epic/mods/tunneltest/init.lua

--load settings
local settings = dofile( minetest.get_modpath("tunneltest") .. "/tunneltest.conf" )

--functions for tunnelers
local tunneler_utils = dofile( minetest.get_modpath("tunneltest") .. "/tunneler.lua" )

--generate tunnelers from settings
for name, desc in pairs( settings.tunneler_types ) do
   local toolspec = desc.toolspec
   toolspec.stack_max = 1
   toolspec.on_secondary_use = tunneler_utils.config
   toolspec.on_place = tunneler_utils.config
   minetest.register_tool( "tunneltest:"..name, toolspec )
   minetest.register_craft( { output = "tunneltest:"..name, recipe = desc.recipe } )
end

minetest.register_on_player_receive_fields( tunneler_utils.field_handler )

minetest.register_on_dignode( tunneler_utils.on_dig )