fun_caves = {}
fun_caves.version = "1.0"
fun_caves.path = minetest.get_modpath(minetest.get_current_modname())
fun_caves.world = false


if fun_caves.world then
	minetest.register_on_mapgen_init(function(mgparams)
		minetest.set_mapgen_params({mgname="singlenode", flags="nolight"})
	end)

	if default then
		if default.register_ores then
			default.register_ores()
		end
		if default.register_blobs then
			default.register_blobs()
		end
		if default.register_biomes then
			default.register_biomes()
		end
		if default.register_decorations then
			default.register_decorations()
		end
		if flowers.register_decorations then
			flowers.register_decorations()
		end
	end
else
	minetest.set_mapgen_params({flags="nocaves"})
end


-- Modify a node to add a group
function minetest.add_group(node, groups)
	local def = minetest.registered_items[node]
	if not def then
		return false
	end
	local def_groups = def.groups or {}
	for group, value in pairs(groups) do
		if value ~= 0 then
			def_groups[group] = value
		else
			def_groups[group] = nil
		end
	end
	minetest.override_item(node, {groups = def_groups})
	return true
end

function fun_caves.clone_node(name)
	local node = minetest.registered_nodes[name]
	local node2 = table.copy(node)
	return node2
end

function fun_caves.node(name)
	if not fun_caves.node_cache then
		fun_caves.node_cache = {}
	end

	if not fun_caves.node_cache[name] then
		fun_caves.node_cache[name] = minetest.get_content_id(name)
		if name ~= "ignore" and fun_caves.node_cache[name] == 127 then
			print("*** Failure to find node: "..name)
		end
	end

	return fun_caves.node_cache[name]
end


--dofile(fun_caves.path .. "/nodes.lua")
dofile(fun_caves.path .. "/mapgen.lua")


if fun_caves.world then
	minetest.register_on_newplayer(fun_caves.respawn)
	minetest.register_on_respawnplayer(fun_caves.respawn)
end

-- Inserting helps to ensure that fun_caves operates first.
table.insert(minetest.registered_on_generateds, 1, fun_caves.generate)