formspec parameters

init.lua

--
-- API
--
formspec_params = {}
local _show_formspec = minetest.show_formspec
function minetest.show_formspec(name, formname, formspec, params)
	formspec_params[name] = params
	_show_formspec(name, formname, formspec)
end
minetest.after(0, function()
	for i = 1, #core.registered_on_player_receive_fields do
		local callback = minetest.registered_on_player_receive_fields[i]
		minetest.registered_on_player_receive_fields[i] = function(player, formname, fields)
			return callback(player, formname, fields, formspec_params[player:get_player_name()])
		end
	end
end)


--
-- Usage
--
minetest.register_chatcommand("a", {func=function(name)
	minetest.show_formspec(name, "test:form", "size[3,2]label[1,1;Hello!]", {one = "1"})
end})

minetest.register_on_player_receive_fields(function(player, formname, fields, params)
	print(dump(params))
end)