NuclearPong/server/server.lua

local running = true
local socket = require 'socket'
local udp = socket.udp()
local player1ip, player2ip, player1port, player2port = "none", "none", nil, nil
udp:settimeout(0)
udp:setsockname('*', 12345)
local p1ping = 0
local p2ping = 0

while running do 
    local data, msg_or_ip, port_or_nil
    local p1data, p2data
    repeat
        
    data, msg_or_ip, port_or_nil = udp:receivefrom()
    if data then 
        print(string.sub(data,1,1) .. "Playerlist: " .. player1ip .. " " .. player2ip)
        if (player1ip == msg_or_ip) then 
            p1ping = 0
            p1data = data 
         elseif player2ip == msg_or_ip then 
             p2data = data
             p2ping = 0 
         else 
            if (player1ip == "none") then 
                player1ip = msg_or_ip 
                p1data = data
                p1ping = 0
                player1port = port_or_nil
                print("CONNECTED: PLAYER 1 FROM: " .. player1ip)
            elseif player2ip == "none" and msg_or_ip ~= player1ip then 
                player2ip = msg_or_ip 
                p2data = data
                p2ping = 0
                player2port = port_or_nil
                print("CONNECTED: PLAYER 2 FROM: " .. player2ip)
            elseif (player1ip ~= msg_or_ip and player2ip ~= msg_or_ip) then
                print("Lobby Full!" .. player1ip .. player2ip)
            end
         end

    else 
end
until not data 
if player1ip ~= "none" then
    p1ping = p1ping + 1
    if p1ping > 100 then
        if p2data then  
        udp:sendto(p2data .. '|' .. p1ping, player1ip, player1port)
        end
        print("PLAYER 1 DISCONNECTED")
        p1data = nil 
        player1ip = "none"
        player1port = nil
    end
end
if player2ip ~= "none" then 
    p2ping = p2ping + 1
    if p2ping > 100 then 
        if p1data then 
        udp:sendto(p1data .. '|' .. p2ping, player2ip, player2port)
        end
        print("PLAYER 2 DISCONNECTED")
        p2data = nil 
        player2ip = "none"
        player2port = nil
    end
end
        if p1data and player2port then 
            udp:sendto(p1data .. '|' .. p2ping, player2ip, player2port)
            print("SENT TO " .. player2ip .. ":" .. player2port ..  " : " .. string.sub(p1data,1,1))
        end 
        if p2data and player1port then
            udp:sendto(p2data .. '|' .. p1ping, player1ip, player1port)
            print("SENT TO " .. player1ip .. ":" .. player1port .. " : " .. string.sub(p2data,1,1))
            --print("1::" .. p1data)
            --print("2::" .. p2data)
            --print("SENT1: " .. player2ip .. " " .. player2port .. " " .. p1data)
            --print("SENT2: " .. player1ip .. " " .. player1port .. " " .. p2data)
        end
        
    socket.sleep(0.015)

end