shell.run("clear")
print ("@Version: 1_1_4a")
print ("@author: Kevin Iselborn")
sleep (2)

width  = getNumericVariable ("Wie Lang sind diese Reihen?")
length = getNumericVariable ("Wie viele Reihen sollen abgebaut werden?")

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

function getNumericVariable (Text)
	input = 1
	shell.run("clear")
	print (Text)
	input = read()
	while not tonumber(input) do
		print ("Du darfst nur Zahlen eingeben...Bitte versuche es erneut.")
		print (Text)
		input = read()
	end
	return input
end


function mineRow ()
	i = 0
	while i<length do
		digAndForward()
		i=i+1
	end
end

function changeRow ()
	turtle.turnRight()
	turtle.turnRight()
	mineRow()
	turtle.turnLeft()
	digAndForward()
	turtle.turnLeft()
end

function mine ()
	k=0
	while k<width do
		mineRow()
		changeRow()
		k=k+1
	end
end

mine()

print("finished")