Dom Item Randomizer

rednet.close("left")
rednet.open("left")
math.randomseed(os.time())

-- To the right P1, to the left P2
local PLAYER_1 = 4
local PLAYER_2 = 5

local MAX_NUM = 50

function dumpInv( side )
    if side == "left" then
        turtle.turnLeft()
    elseif side == "right" then
        turtle.turnRight()
    else
        return
    end

    for i=1,16 do
        turtle.select(i)
        turtle.drop()
    end

    if side == "left" then
        turtle.turnRight()
    elseif side == "right" then
        turtle.turnLeft()
    end

end

function dumpInvUp()
    for i=1,16 do
        turtle.select(i)
        turtle.dropDown()
    end
end

function replySend( id, message )
    while true do
        rednet.send(id, message)
        local e, s, d = os.pullEvent()
        if e == "rednet_message" and s == id then
            return d
        end

    end
    return nil
end

playerMessages = {}

-- Are the player turtles ready?
playerMessages["p1r"] = nil
playerMessages["p2r"] = nil

while playerMessages["p1r"] == nil or playerMessages["p2r"] == nil do
    if replySend(PLAYER_1, "init") == "true" then
        playerMessages["p1r"] = "true"
    end
    if replySend(PLAYER_2, "init") == "true" then
        playerMessages["p2r"] = "true"
    end
end

sleep(1)

while true do
    -- Pick random number and set default guess values
    local rand = math.random(MAX_NUM)
    print("Answer:"..tostring(rand))
    playerMessages["p1g"] = nil
    playerMessages["p2g"] = nil

    playerMessages["p1g"] = replySend(PLAYER_1, "guess")
    replySend(PLAYER_1, "guessreceived")
    print("P1:"..tostring(playerMessages["p1g"]))

    playerMessages["p2g"] = replySend(PLAYER_2, "guess")
    replySend(PLAYER_2, "guessreceived")
    print("P2:"..tostring(playerMessages["p2g"]))

    if math.abs(rand - playerMessages["p1g"]) <
    math.abs(rand - playerMessages["p2g"]) then
        print("I AM THE LAW!") -- P1 wins
        dumpInv("right")
    elseif math.abs(rand - playerMessages["p1g"]) >
    math.abs(rand - playerMessages["p2g"]) then
        print("I AM THE LAW!!") -- P2 wins
        dumpInv("left")
    else
        print("I AM THE LAW!!!") -- Tie
        local tiebreaker = math.random(2)
        print("tiebreaker:P"..tostring(tiebreaker))
        if tiebreaker == 1 then dumpInv("right") end
        if tiebreaker == 2 then dumpInv("left") end
        if tiebreaker ~= 1 and tiebreaker ~=2 then dumpInvUp() end --WTF
    end

    sleep(1)

end