-- Check for necessary mod functions and abort if they aren't available.
if not minetest.get_biome_id then
	minetest.log()
	minetest.log("* Not loading Cityscape *")
	minetest.log("Cityscape requires mod functions which are")
	minetest.log(" not exposed by your Minetest build.")
	minetest.log()
	return
end

loud_walking = {}
loud_walking.version = "1.0"
loud_walking.path = minetest.get_modpath(minetest.get_current_modname())
loud_walking.first_flag = 0


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


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

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

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

	return loud_walking.node_cache[name]
end


dofile(loud_walking.path .. "/chat.lua")
dofile(loud_walking.path .. "/nodes.lua")
dofile(loud_walking.path .. "/deco.lua")
dofile(loud_walking.path .. "/deco_caves.lua")
dofile(loud_walking.path .. "/mapgen.lua")


minetest.register_on_newplayer(loud_walking.respawn)
minetest.register_on_respawnplayer(loud_walking.respawn)

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

minetest.register_on_joinplayer(function(player)
	player:set_sky("#000000", "plain", {})
end)