digi.lua

pos = 0

local keep = {
    "minecraft:coal",
    "minecraft:anciant_debris",
    "tconstruct:cobalt_ore"
}

dir = 1

function fule()
    if(turtle.getFuelLevel() == 0) then
        turtle.select(1)
        turtle.refuel()
    end
end

function checkInv()
    for i=1,16 do
        turtle.select(i)
        name=turtle.getItemDetail(i, false)
        if name then
            name = name.name
            notFound = true
            for _,v in pairs(keep) do
                    if v == name then
                        notFound = false
                        break
                    end
                end
            if notFound then
                turtle.drop()
            end
        end
    end
end

while true do

    if(pos == 30) then
        pos = -1
    end

    fule()



    turtle.dig()
    turtle.digUp()
    turtle.digDown()

    turtle.forward()
    if(pos == -1) then
        if(dir == 1) then
            turtle.turnRight()
            dir = 0
            loop()
            turtle.forward()
            turtle.turnRight()
        else
            turtle.turnLeft()
            dir = 1
            loop()
            turtle.forward()
            turtle.turnLeft()
        end
    end
    pos = pos +1
end