Turtle Mining Script

print("Enter size (Width Length Height)")
local input = read()

vals = {}
for val in (input.." "):gmatch(".- ") do table.insert(vals, val) end
local x,z,y = vals[1], vals[2], vals[3]
print(x,z,y)

local FuelLevel = turtle.getFuelLevel()

local needed = (x*y*z) + y + 2

local held = 0

for i = 1, y, 1 do
    if (x*z) + held >= 32 then
        needed = needed + i
        held=0
    else
        held = held + (x*z)
    end
end

if z % 2 == 0 and y % 2 ~= 0 then
   needed = needed + (z-1)
end
if z % 2 ~= 0 and y % 2 ~= 0 then
    needed = needed + ((z-1)+(x-1))
end

print("Standard turtle max fuel: 20,000")
print("Advanced turtle max fuel: 100,000")

while FuelLevel < needed do
    print("Fuel needed: "..(needed - FuelLevel))
    print("Coal needed: "..((needed - FuelLevel)/80))
    print("Coal Blocks needed: "..((needed - FuelLevel)/720))
    print("Lava Buckets needed: "..((needed - FuelLevel)/1000))
    while turtle.getItemCount(1) < 1 do
        os.sleep()
    end
    turtle.refuel()
    FuelLevel = turtle.getFuelLevel()
end

print("Starting in 3 seconds...")
os.sleep(3)

turtle.select(16)
turtle.placeUp()
turtle.select(1)

for i=1, y, 1 do
    turtle.digDown()
    turtle.down()

    for j=1, z, 1 do
        if j > 1 then
            if j % 2 ~= 0 then
                if z%2 == 0 and i%2 == 0 then
                    turtle.turnLeft()
                else
                    turtle.turnRight()
                end
            else
                if z%2 == 0 and i%2 == 0 then
                    turtle.turnRight()
                else
                    turtle.turnLeft()
                end
            end
            while turtle.detect() do
                turtle.dig()
            end
            turtle.forward()
            if j % 2 ~= 0 then
                if z%2 == 0 and i%2 == 0 then
                    turtle.turnLeft()
                else
                    turtle.turnRight()
                end
            else
                if z%2 == 0 and i%2 == 0 then
                    turtle.turnRight()
                else
                    turtle.turnLeft()
                end
            end
        end
        for k=1, x-1, 1 do
            while turtle.detect() do
                turtle.dig()
            end
            turtle.forward()
        end
    end

    if i % 2 == 0  and turtle.getItemCount(16) > 0 then
        for j=1, i, 1 do
            turtle.up()
        end
        for j=1, 16, 1 do
            turtle.select(j)
            turtle.dropUp()
        end
        for j=1, i, 1 do
            turtle.down()
        end
        turtle.select(1)
    end

    turtle.turnLeft()
    turtle.turnLeft()

end

for i=1, y, 1 do
    turtle.up()
end
if z % 2 == 0 and y % 2 ~= 0 then
    turtle.turnRight()
    for i=1 , z-1 do
        turtle.forward()
    end
    turtle.turnLeft()
end

if z % 2 ~= 0 and y % 2 ~= 0 then
    for i=1 , x-1 do
        turtle.forward()
    end
    turtle.turnLeft()
    for i=1 , z-1 do
        turtle.forward()
    end
    turtle.turnLeft()
end

for i=1, 16, 1 do
    turtle.select(i)
    turtle.dropUp()
end

turtle.select(0)

print("Mining Complete!")