Wii Turtle Miner v4.0

print("Wii Turtle Miner v4.0")
sure = false
repeat
d = false
write("Turtle Name> ")
name = read()
write("Turtle Owner> ")
owner = read()
print("Turtle name: "..name.."!\nTurtle owner: "..owner.."!")
repeat
print("Is this the right info? (Y/N)")
write("Choice> ")
c = read()
if (string.lower(c) == "n") then
d = true
elseif (string.lower(c) == "y") then
d = true
sure = true
end
until d == true
until sure == true
rednet.open("right")
rednet.broadcast(name..":"..owner..":starting")
rednet.close("right")
turtle.select(1)
n = 0
built = false
done = false
for i = 1,4 do
turtle.turnRight()
if (turtle.detect() == true and i < 4) then
turtle.dig()
end
turtle.place()
end
if (turtle.detectUp()) then
turtle.digUp()
end
turtle.placeUp()
while done == false do
turtle.digDown()
if (n == 0) then
turtle.down()
turtle.digDown()
n = n + 1
end
for i = 1,5 do
turtle.turnRight()
turtle.select(3)
if (i < 5 and turtle.compare() == false) then
turtle.dig()
end
turtle.select(1)
end
if (turtle.detectDown()) then
rednet.open("right")
rednet.broadcast(name..":"..owner..":done")
rednet.close("right")
for i = 1,n do
turtle.up()
end
turtle.digUp()
turtle.select(2)
turtle.placeUp()
turtle.dig()
turtle.forward()
turtle.forward()
turtle.turnRight()
turtle.turnRight()
turtle.select(1)
turtle.place()
done = true
else
n = n + 1
turtle.down()
end
end