Quarry4

term.clear()
term.setCursorPos(1,1)
write("Welcome to the Mining program.\n The Turtle will mine a prism that's to the left, forward, and below.\n GUI by Pdan4, code by David341.")
write("Prism will begin after pressing enter after filling the DEPTH query.\n")

write("\n \nBlocks forward? ")
local length = read()

write("\nBlocks left? ")
local width = read()

write("\nBlocks down? ")
local depth = read()



for d=1, depth do
  for w=1, width do
  turtle.dig()
  turtle.digDown()

    for l=2, length do
    turtle.dig()
    turtle.forward()
    turtle.digDown()
   end


 if width-w>0 then
  if w%2==1 then
  	 if length%2==1 then
      turtle.turnLeft()
      turtle.forward()
      turtle.turnLeft()
      end

    if length%2==0 then
      turtle.turnRight()
      turtle.forward()
      turtle.turnRight()
      end
	end




  if w%2==0 then
  	if d%2==0 then
    	if length%2==0 then
     	turtle.turnRight()
      	turtle.forward()
      	turtle.turnRight()
      	end

    	if length%2==1 then
      	turtle.turnLeft()
      	turtle.forward()
     	turtle.turnLeft()
      	end
      end

       if d%2==1 then
    	if length%2==1 then
     	turtle.turnRight()
      	turtle.forward()
      	turtle.turnRight()
      	end

    	if length%2==0 then
      	turtle.turnLeft()
      	turtle.forward()
     	turtle.turnLeft()
      	end
      end
end




   end
  end
turtle.down()
turtle.turnLeft()
turtle.turnLeft()

end