View difference between Paste ID: 8uHejrSf and QuK84isB

 local tArgs = { ... }
 local numBlocks = 0
 
 local function pbBuildRow(length)
   if length > 0 then
     shell.run("go", "[_9_8_7_6_5_4_3_2_1f]" .. length-1)
     shell.run("go", "[_9_8_7_6_5_4_3_2_1]")
   else
     print("Plane length must be at least one")
   end
 end
 
 local function pbCheckInventory()
   numBlocks = 0
   for j=1,9 do
     numBlocks = numBlocks + turtle.getItemCount(j)
   end
   if numBlocks < planeLength then
     print("Not enough blocks to complete the next row, please add more blocks to slots 1 through 9 and press a key to continue")
-    event = os.pullEvent()
+    while true do
-    if event == "char" then
+      event = os.pullEvent()
-      pbCheckInventory()
+      if event == "char" then
         pbCheckInventory()
       end
     end
   else
     return true
   end
 end
 
 local function pbNextLayer()
   shell.run("go", "ua")
 end
 
 local function pbNextRow(direction)
   if direction == 1 then
     shell.run("go", "rfr")
   else
     shell.run("go", "lfl")
   end
 end
 
 if fs.exists("go") then
   if #tArgs < 2 or #tArgs > 4 then
     shell.run("clear")
     print("The number of parameters must be 2-4, first length then height, then optionally an orientation character, 'h' for horizontal, 'v' for vertical (default). Then the direction relative to the turtle for the plane to extend: l for left or 'r' for right (default).")
     return false
   end
 
   planeLength = tonumber(tArgs[1])
   planeHeight = tonumber(tArgs[2])
   planeOrientation = "v"
   -- turn dir is specified by the parameter and represents the direction from the turtle's start position that the horizontal planes are placed in
   -- the decision whether to turn right or left at the end of a row is decided by the modulus of a division by 2 of the row count, modified by the turnDir
   turnDir = "r"
   -- turnDir has a default value, as does planeOrientation, but turnDir is only ever used when planeOrientation is set to horizontal
   if #tArgs > 2 then
     planeOrientation = tArgs[3]
   end
 
   if #tArgs > 3 then
     turnDir = tArgs[4]
   end
 
   -- For the 'height' aka depth dimension, do a row of the specified length of blocks
   for i=1,planeHeight do
     -- Place the row of blocks for the specified row length regardless of plane orientation
     pbCheckInventory()
     pbBuildRow(planeLength)
     -- If the orientation is vertical, call the function to continue the plane in that direction, and when coming to the end of the plane, go back to near the starting location
     if planeOrientation == "v" then
       pbNextLayer()
     -- If the orientation is horizontal, call the function to continue the plane in that direction, and when coming to the end of the plane, go back to near the starting location
     else
       if i < 2 then
         nextDirection = i%2
       nextDirection =
       if turnDir == "r" then
         pbNextRow((i+2)%2)
       else
         pbNextRow((i+1)%2)
       end
     end
   end
 else
   shell.run("clear")
   print("You must install rob's modified version of the 'go' utility program, located on pastebin at t0vyUwmt")
 end