How to create multiplayer game with hotspot

Hi,

I’m newbie in corona and i want to connect 2 or 3 devices in local network with 1 device is the server and sharing hotspot to another devices.
Can i do this?

I use udp socket and it work well in simulator but i can’t connect in android devices

Here is my code:

=====

server

=====

local socket = require “socket”

local widget= require (“widget”)

ball = widget.newButton{left=100,top=160,width=25,height=25, id=“ball”}

local udp = socket.udp()

udp:settimeout(0)

udp:setsockname("*", 12345)

socket.bind("*", 12345)

local data, msg_or_ip, port_or_nil

local function receiveUdpMsg(event)

    data = udp:receive()

    if data ~= nil then

        if (data==“up”)then ball.y=ball.y-10

        elseif (data==“down”) then ball.y=ball.y+10

        elseif (data==“left”) then ball.x=ball.x-10

        elseif (data==“right”) then ball.x=ball.x+10

        end

    end

    socket.sleep(0.01)

    recv= timer.performWithDelay(100, receiveUdpMsg)

end

recv= timer.performWithDelay(100, receiveUdpMsg)

=====
client

=====

local socket = require(“socket”)

local widget= require (“widget”)

local address, port = “localhost”, 12345

function sendUdpMsg(message)

    udp = socket.udp()

    udp:settimeout(0)

    udp:setpeername(address, port)

    udp:send(message)

end

local function ButEvent(self,event)

    if event.phase == “ended” then

        if self.id == “up” then

            sendUdpMsg(“up”)

            ball.y=ball.y-10

        elseif self.id == “down” then

            sendUdpMsg(“down”)

            ball.y = ball.y+10

        elseif self.id == “left” then

            sendUdpMsg(“left”)

            ball.x=ball.x-10

        elseif self.id == “right” then

            sendUdpMsg(“right”)

            ball.x=ball.x+10

        end

    end

end

ball = widget.newButton{left=100,top=160,width=25,height=25, id=“ball”,  }

upBut=widget.newButton{left=100,top=60,width=55,height=25,label=“Up”,id=“up”}

downBut=widget.newButton{left=100,top=260,width=55,height=25,label=“Down”,id=“down”} 

leftBut=widget.newButton{left=10,top=160,width=55,height=25,label=“left”,id=“left”}

rightBut=widget.newButton{left=200,top=160,width=55,height=25,label=“Right”,id=“right”}

upBut.touch = ButEvent

downBut.touch = ButEvent

leftBut.touch = ButEvent

rightBut.touch = ButEvent