im = require("inventorymanager")
local height = 0
function mineLayer()
    rednet.broadcast("i can halt now")
    id, messages = rednet.receive(nil, 5)
    if messages == "halt" then
        print("was ordered to stop")
        return false
    end
    if turtle.getFuelLevel() < 500 then
        print("too tired to mine")
        return false
    end
    local slots = 0
    for i = 1,16 do
        if turtle.getItemCount(i) == 0 then
            slots = slots +1
        end
    end

    if slots < 8 then
        print("not confident i can pick it all up :(")
        return false
    end
    status = "dropping down"
    print(status)
    while turtle.down() do
        height = height+1
    end
    turtle.digDown()
    turtle.down()
    height = height+1
    status = "mining layer:"..height
    print(status)
    for i = 1,16 do

        for j = 1,15 do
            hit, below = turtle.inspectDown()
            if below.name == "minecraft:water" then
                im.pull("minecraft:cobblestone")
                turtle.placeDown()
            end
            turtle.dig()
            turtle.forward()
        end
        if( math.mod(i,2) == 0) then
            turtle.turnLeft()
            turtle.dig()
            turtle.placeDown()
            turtle.forward()
            turtle.turnLeft()
        else
            turtle.turnRight()
            turtle.dig()
            turtle.placeDown()
            turtle.forward()
            turtle.turnRight()
        end
    end
    turtle.turnLeft()
    for i = 1,16 do
        turtle.forward()
    end
    turtle.turnRight()
    return true
end
function gohome()
    status = "resurfacing"
    print(status)
    for i = 1,height do
        turtle.up()
    end
    turtle.back()
end
turtle.forward()
while mineLayer() do

end
gohome()