--[[
This mod implements the API to register digging groups for mcl_autogroup.  The
rest of the mod is implemented and documented in the mod _mcl_autogroup.

The mod is split up into two parts, mcl_autogroup and _mcl_autogroup.
mcl_autogroup contains the API functions used to register custom digging groups.
_mcl_autogroup contains most of the code.  The leading underscore in the name
"_mcl_autogroup" is used to force Minetest to load that part of the mod as late
as possible.  Minetest loads mods in reverse alphabetical order.
--]]
mcl_autogroup = {}
mcl_autogroup.registered_diggroups = {}

-- Register a group as a digging group.
--
-- Parameters:
-- group - Name of the group to register as a digging group
-- def - Table with information about the diggroup (defaults to {} if unspecified)
--
-- Values in def:
-- level - If this value is unspecified then the group does not have
--         levels, otherwise it is an array containing the names of the
--         different digging levels the digging group supports.
function mcl_autogroup.register_diggroup(group, def)
	mcl_autogroup.registered_diggroups[group] = def or {}
end