Dig Program

print ("Length: ")
length  = io.read(int)

if length ~= "" then
newLength = length - 1
print ("width: ")
width = io.read(int)

if width ~= "" then
newWidth = width - 1
print ("depth: ")
depth = io.read(int)

if depth ~= "" then
newDepth = depth - 1
term.clear()
term.setCursorPos(1, 1)
print ("Calculating total number of blocks to be mined...")
sleep(1)
print ("Block total ="..length*width*depth)
print ("Starting Program...")
sleep(1)
end

turtle.digDown()
turtle.down()

function turtleDigOutline()

for i = 1, newLength do
turtle.dig()
turtle.forward()
end

turtle.turnLeft()

for i = 1, newWidth do
turtle.dig()
turtle.forward()
end

turtle.turnLeft()

for i = 1, newLength do
turtle.dig()
turtle.forward()
end

turtle.turnLeft()

for 1, newWidth do
turtle.dig()
turtle.forward()
end

turtle.turnLeft()
end

function turtleDigCentre()

turtle.turnLeft()
turtle.forward()
turtle.turnRight()

for i = 1, newLength do
turtle.dig()
turtle.forward()
end

for i = 1, newLength do
turtle.back()
end
end

for i = 1, newWidth do
turtleDigCentre()
end

for i = 1, newDepth do
turtleDigOutline()
turtleDigCentre()
end