advtrains.git - Advtrains mod for minetest.

path: root/advtrains_signals_japan/mod.conf

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-- Minetest: builtin/misc.lua

--
-- Misc. API functions
--

function core.check_player_privs(name, ...)
	if core.is_player(name) then
		name = name:get_player_name()
	elseif type(name) ~= "string" then
		error("core.check_player_privs expects a player or playername as " ..
			"argument.", 2)
	end

	local requested_privs = {...}
	local player_privs = core.get_player_privs(name)
	local missing_privileges = {}

	if type(requested_privs[1]) == "table" then
		-- We were provided with a table like { privA = true, privB = true }.
		for priv, value in pairs(requested_privs[1]) do
			if value and not player_privs[priv] then
				missing_privileges[#missing_privileges + 1] = priv
			end
		end
	else
		-- Only a list, we can process it directly.
		for key, priv in pairs(requested_privs) do
			if not player_privs[priv] then
				missing_privileges[#missing_privileges + 1] = priv
			end
		end
	end

	if #missing_privileges > 0 then
		return false, missing_privileges
	end

	return true, ""
end


local player_list = {}


function core.send_join_message(player_name)
	if not core.is_singleplayer() then
		core.chat_send_all("*** " .. player_name .. " joined the game.")
	end
end


function core.send_leave_message(player_name, timed_out)
	local announcement = "*** " ..  player_name .. " left the game."
	if timed_out then
		announcement = announcement .. " (timed out)"
	end
	core.chat_send_all(announcement)
end


core.register_on_joinplayer(function(player)
	local player_name = player:get_player_name()
	player_list[player_name] = player
	if not minetest.is_singleplayer() then
		local status = core.get_server_status(player_name, true)
		if status and status ~= "" then
			core.chat_send_player(player_name, status)
		end
	end
	core.send_join_message(player_name)
end)


core.register_on_leaveplayer(function(player, timed_out)
	local player_name = player:get_player_name()
	player_list[player_name] = nil
	core.send_leave_message(player_name, timed_out)
end)


function core.get_connected_players()
	local temp_table = {}
	for index, value in pairs(player_list) do
		if value:is_player_connected() then
			temp_table[#temp_table + 1] = value
		end
	end
	return temp_table
end


function core.is_player(player)
	-- a table being a player is also supported because it quacks sufficiently
	-- like a player if it has the is_player function
	local t = type(player)
	return (t == "userdata" or t == "table") and


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