turtle

--require("socket")
protocal = "FUEL"
rednet.open("left")
rednet.host(protocal, "turtle")
print("Turtle os 1.0 © Alien")
dis = 0
tryedFuel = 0

function GOHOME()
    turtle.turnLeft()
    turtle.turnLeft()
    while(dis > 0)
    do
        turtle.forward()
        dis = dis - 1
    end
end

while(true)
do

    if(turtle.getFuelLevel() == 0)
    then
        i = 1
        while(i < 17)
        do
            turtle.select(i)
            turtle.refuel(5)
            i = i + 1
        end
        tryedFuel = tryedFuel + 1
        rednet.send(7, "Need fuel", protocal)
    else
        fuel = "Fuel = " .. tostring(turtle.getFuelLevel())
        rednet.send(7, fuel, protocal)
        tryedFuel = 0
    end

    if(tryedFuel > 15)
    then
        print("No fuel for 15 fuel cycels exiting...")
        rednet.send(7, "No fuel for 15 fuel cycels exiting...", protocal)
        break
    end

    if(dis < 16)
    then
        if(turtle.detect() == true)
        then
            turtle.dig(front)
        else
            turtle.forward()
            dis = dis + 1
        end
    else
        GOHOME()
        --break
    end
    id,mes = rednet.receive(protocal, 0)
    if(mes == "EXIT") then
        rednet.send(7, "EXIT command recived from "..tostring(id), protocal)
        break
    end
end
rednet.send(7, "ended", protocal)
rednet.close("left")