CC_turtle_!wall

--!wall
--This is an accompaniment of !floor that wraps a room in walls
print("How far forward boss?")
local x=tonumber(read())-1
print("How far across boss?")
local y=tonumber(read())-1
print("How far up boss?")
local z=tonumber(read())
print("Left or Right boss? (L/R)")
local dir=read()
if dir=="L" or dir=="l" then
 dir="L"
elseif dir=="R" or dir=="r" then
 dir="R"
end
a=1
if (2*x+2*y)*z+z<=turtle.getFuelLevel() then
 for k=1, z do
  t.up()
  for c=1, 2 do
   for i=1, x do
    if turtle.getItemCount(a)==0 then
     a=a+1
    elseif a==16 and turtle.getItemCount(a)==0 then
     break
    end
    turtle.select(a)
    turtle.placeDown(a)
    t.forward()
    if i==x then
     if dir=="R" then
      t.right()
     elseif dir=="L" then
      t.left()
     end
    end
   end
   for j=1, y do
    if turtle.getItemCount(a)==0 then
     a=a+1
    elseif a==16 and turtle.getItemCount(a)==0 then
     break
    end
    turtle.select(a)
    turtle.placeDown(a)
    t.forward()
    if j==y then
     if dir=="R" then
      t.right()
     elseif dir=="L" then
      t.left()
     end
    end
   end
  end
  if k==z then
   if dir=="L" then
    t.left()
    t.forward()
    t.right()
    t.forward()
   elseif dir=="R" then
    t.right()
    t.forward()
    t.left()
    t.forward()
   end
   t.down(z)
  end
 end
else
 print("Not enough fuel! Shutting Down Now!")
end