Minecraft Turtle tank building

print("Deathcondor's Tank builder")
function floor()
 for i=1,7,1 do
 checkfuel()
  turtle.forward()
  placeCobble()
 end
end

function createfloor()
 for i=1,3,1 do
floor()
checkfuel()
turtle.forward()
turtle.turnLeft()
checkfuel()
turtle.forward()
turtle.turnLeft()
floor()
checkfuel()
turtle.forward()
turtle.turnRight()
checkfuel()
turtle.forward()
turtle.turnRight()
end
floor()
end

function createlevel1()
turtle.up()
turtle.turnRight()
for i=1,6,1 do
placeCobble()
turtle.forward()
end
turtle.turnRight()
placeCobble()
for i=1,6,1 do
turtle.forward()
placeCobble()
end
turtle.turnRight()
for i=1,5,1 do
turtle.forward()
placeTankGlass()
end
turtle.forward()
turtle.turnRight()
for i=1,6,1 do
placeCobble()
turtle.forward()
end
end

function placeGlass()
checkfuel()
turtle.select(13)
   if turtle.getItemCount(13)==0 then
    turtle.select(12)
   if turtle.getItemCount(12)==0 then
    turtle.select(13)
   end
   end
turtle.placeDown()
end

function placeTankGlass()
checkfuel()
turtle.select(15)
   if turtle.getItemCount(15)==0 then
    turtle.select(14)
   if turtle.getItemCount(14)==0 then
    turtle.select(15)
   end
   end
turtle.placeDown()
end

function checkfuel()
if turtle.getFuelLevel() < 1 then
  turtle.select(16)
  turtle.refuel(1)
end
end

function placeCobble()
checkfuel()
    turtle.select(1)
   if turtle.getItemCount(1)==0 then
    turtle.select(2)
   if turtle.getItemCount(2)==0 then
    turtle.select(3)
   if turtle.getItemCount(3)==0 then
    turtle.select(4)
   if turtle.getItemCount(4)==0 then
    turtle.select(5)
   if turtle.getItemCount(5)==0 then
    turtle.select(6)
   if turtle.getItemCount(6)==0 then
    turtle.select(7)
   if turtle.getItemCount(7)==0 then
    turtle.select(8)
   if turtle.getItemCount(8)==0 then
    turtle.select(9)
   if turtle.getItemCount(9)==0 then
    turtle.select(10)
   if turtle.getItemCount(10)==0 then
    turtle.select(11)
   if turtle.getItemCount(11)==0 then
    turtle.select(12)
   if turtle.getItemCount(12)==0 then
    turtle.select(13)
   if turtle.getItemCount(13)==0 then
    turtle.select(1)
   end
   end
   end
   end
   end
   end
   end
   end
   end
   end
   end
   end
  end
turtle.placeDown()
end

function createLedge()
    turtle.turnRight()
	checkfuel()
	turtle.back()
    turtle.turnLeft()
   for i=1,4,1 do
    turtle.turnRight()
	checkfuel()
   for i=1,8,1 do
    placeGlass()
	checkfuel()
	turtle.forward()
   end
   end
   placeGlass()
    turtle.turnRight()
   	checkfuel()
	turtle.forward()
	turtle.turnRight()
end

function createHouse()
 for i=1,1,1 do
  checkfuel()
  turtle.up()
  createfloor()
   for i=1,6,1 do
    createlevel1()
   end
   turtle.turnRight()
   turtle.turnRight()
   checkfuel()
   turtle.back()
   turtle.up()
   createfloor()
   checkfuel()
   turtle.forward()
   createLedge()
 end
end

turtle.select(1)
createHouse()