Simple turtle quarry miner

function bedrockChecker()
    booly, data = turtle.inspectDown()
    if (data.name) == "minecraft:bedrock" then
        return 1
    else
        return 0
    end
end

function digDown()
    isBedrock = bedrockChecker()
    i = 0
    while isBedrock == 0 do
        turtle.digDown()
        turtle.down()
        i = i + 1
        isBedrock = bedrockChecker()
    end
    repeat
        turtle.up()
        i = i - 1
    until (i == 0)
end

function moveForward()
    turtle.dig()
    turtle.forward()
end

function chunkQuarryLength(length)
    for s = length, 1, -1
    do
        digDown()
        moveForward()
        print(s)
    end
end

function fullQuarry(size)
    for w = size, 1, -1
    do
        chunkQuarryLength(size)
        turtle.turnLeft()
        turtle.forward()
        turtle.turnRight()
        for a = size, 1, -1
        do
            turtle.back()
        end
    end
end
turtle.refuel()
fullQuarry(16)