OrechidMiner

if (fs.exists("choices") == false) then --Check if this is first time run, no saved choices on file
    while true do
            print("Which layer?")

            local answer = read()
            if tonumber(answer)==nill then
                print("-Wrong answer, input not a number-")
            else
                local answerv = tonumber(string.format("%." .. 0 .. "f", answer))
                    layer=answerv
                    print("Layer ", layer, " chosen")
                    break
            end
    end


    local file = fs.open("choices","w")
    file.writeLine("layer="..tostring(layer))
    file.close()
end
os.loadAPI("choices") -- Reads choices from file
local layer= choices.layer


local function move(steps)
    for i=1,steps do
        while not turtle.forward() do
                    sleep(1)
        end
    end
end

local function empty()
    turtle.select(16)
    turtle.place()
    for i=1,15 do
        turtle.select(i)
        if turtle.getItemCount(i)>0 then
            while not turtle.drop() do
                sleep(1)
            end
        end
    end
    turtle.select(16)
    turtle.dig()
    turtle.select(1)
end

local function mine()
    --steps in spiral path
    local spiral={11,10,10,9,9,8,8,7,7,6,6,5,5,4,4,3}

    for i=1,#spiral do
        --print(spiral[i])
        for j=1,spiral[i] do
            turtle.dig()
            local emptyslot=0
            for i=1,15 do
                if  turtle.getItemCount(i)<1 then
                    emptyslot=emptyslot+1
                end
            end
            if emptyslot<1  then
                empty()
            end
            move(1)
        end
        turtle.turnRight()
    end
    turtle.turnLeft()
    move(4)
    turtle.turnLeft()
    move(4)
    turtle.turnLeft()
    turtle.turnLeft()
    empty()
end


local function home()
    while true do
        local success,data=turtle.inspect()
        if success and data.name=="peripheralsplusone:rf_charger" then
            turtle.turnLeft()
            turtle.turnLeft()
            return
        end
        if success==false or data.name~="tconstruct:clear_glass" then
            turtle.dig()
            move(1)
        else
            turtle.turnLeft()
        end
    end
end



rednet.open("left")
rednet.host("OrechidMiner","layer"..layer)

home()
empty()

while true do
    local _,message,_= rednet.receive()
    if message=="go" then
        mine()
    end
end