Minetest formspec list -> field interaction test

init.lua

interact = {}
interact.chosen = {}


function interact.command(playername, param)
	minetest.show_formspec(playername, "myform", interact.getform(playername))
end

function interact.receive(player, formname, fields)
	local playername = player:get_player_name()
	if fields.list then
		local action, index = fields.list:match("(.+):(.+)")
		index = tonumber(index)
		interact.chosen[playername] = ({"one", "two", "three"})[index]
		minetest.show_formspec(playername, formname, interact.getform(playername))
	end	
end

function interact.getform(playername)
	local chosen = interact.chosen[playername] or "none"
	local form = [[
size[5,5]
field[1,1;3,1;chosen;Chosen;]] .. chosen .. [[]
textlist[0,2;3,3;list;one,two,three]
]]
	return form
end

minetest.register_on_player_receive_fields(interact.receive)

minetest.register_chatcommand("inter", {func = interact.command})