View difference between Paste ID: cMBykysF and YijBG3sz

 --[[
-	2013 (c) psychedelixx
+	2014 (c) psychedelixx
-	Minecraft Turtle: Chest Tunnel
+	Minecraft Turtle: Chest Tunnel (Robust)
-	2013-05-22
+	2014-03-25
 
-	Digs a room with specified dimensions.
+	Digs a tunnel and places mined items in chests.
 
 	Robust API:
 	http://computercraft.info/wiki/Robust_Turtle_API
 
-        - type "pastebin get YijBG3sz ctunnel "
+
-        - type "ctunnel <length> [<return (0|1)>]"
+
           (to give your turtle an unique name so it remembers its programs)
         - type "pastebin get cMBykysF ct"
         - type "ct <length> [<return (0|1)>]"
 		- place chests in slot 15
 		- place torches in slot 16
-ret = 0
+
 os.loadAPI("t")
 i = 0
 ret = 1
-	if turtle.getFuelLevel() < 2 then
+
-		turtle.refuel()
+
 	i = i+1
 
 	print("----------------")
 	print("Remaining fuel: " .. turtle.getFuelLevel())
 	print("Digged: " .. i .. "/" .. length .. "(" .. math.floor(100/length*i) .. "%)")
 	print("Next torch in " .. 9-i%8)
 	print("Next chest in " .. 33-i%32)
 	print("")
 
 	--[[ Vorwärts graben und bewegen ]]--
-	while not turtle.forward() do
+	t.dig()
-		turtle.dig()
+	t.forward()
 
 	--[[ Hoch bzw. runter graben ]]--
 	if i%2 == 1 then
 		t.digUp()
-		repeat
+
-			turtle.digUp()
+		t.digDown()
-		until not turtle.detectUp()
+
 
-		turtle.digDown()
+
 	t.left()
 	t.dig()
 
-	turtle.turnLeft()
+
-	repeat
+
-		turtle.dig()
+
-	until not turtle.detect()
+
 		for slot = 1, 14 do
 			turtle.select(slot)
 			turtle.drop()
 		end
 	end
 
 	--[[ Rechts graben ]]--
 	t.turnAround()
 	t.dig()
 
 	--[[ Fackel setzen ]]--
 	if i%8 == 1 then
-	turtle.turnLeft()
+
-	turtle.turnLeft()
+
-	repeat
+
-		turtle.dig()
+
-	until not turtle.detect()
+
 	if i%2 == 1 then
 		t.up()
 		t.digUp()
 	else
 		t.digUp()
 		t.down()
 	end
 
 	--[[ Rechts graben ]]--
-		turtle.digDown()
+	t.dig()
-		turtle.up()
+
-		repeat
+
-			turtle.digUp()
+	t.turnAround()
-		until not turtle.detectUp()
+	t.dig()
 
-		repeat
+
-			turtle.digUp()
+	t.right()
-		until not turtle.detectUp()
+
-		turtle.down()
+	--[[ Sand/Kies entfernen ]]--
-		turtle.digDown()
+	t.digUp()
 end
 
 local args = { ... }
-	repeat
+
-		turtle.dig()
+
-	until not turtle.detect()
+	print("ct <length> [<return (0|1)>]")
 	print("place chests in slot 15")
 	print("place torches in slot 16")
-	turtle.turnLeft()
+
-	turtle.turnLeft()
+
-	repeat
+
-		turtle.dig()
+
-	until not turtle.detect()
+
 length = tonumber(args[1])
 
-	turtle.turnRight()
+
 	ret = tonumber(args[2])
 end
 
 if turtle.getFuelLevel() < length*2 + length*ret then
 	print("I need fuel!")
-	print("ctunnel <length> [<return (0|1)>]")
+	print((length*2 + length*ret) - turtle.getFuelLevel() .. " fuel missing")
 	print("Refuel with " .. ((length*2 + length*ret) - turtle.getFuelLevel())/80+1 .. " pieces of coal")
 else
 	print("======== 2014 (c) psychedelixx ========")
 	print("Let's go!")
 	print("Digging " .. length)
 
 	for l = 1, length do
 		move()
 	end
 
-	ret = 1
+
 		t.turnAround()
 		t.forward(length)
-if turtle.getFuelLevel() == 0 then
+
-	turtle.refuel()
+