1. --[[
2.   Automated stair digger
3.   - Digs down DIG_DEPTH amount
4.   - Each stairs has a height of STAIR_HEIGHT
5.   - The top of every other stair will have a torch
6.     _ (If you place torches in inventory slot 2)
7.   http://davehendler.com/tracedata/
8. --]]
9.  
10. local tArgs = { ... }
11.  
12. if (#tArgs ~= 2) then
13.   print( "USAGE: stairs DIG_DEPTH STAIR_HEIGHT" )
14.   return
15. end
16.  
17. depth=tonumber(tArgs[1])
18. stairHeight=tonumber(tArgs[2])
19.  
20. fuelSlot = 1
21. torchSlot = 2
22.  
23. torchEvery = 2
24.  
25. -- TODO: limit to rational sizes
26.  
27. t=turtle
28.  
29. climb = stairHeight-2
30.  
31. -- TODO: fuel management
32.  
33. t.select( fuelSlot )
34. t.refuel( 1 )
35.  
36. for i = 1, depth do
37.   print( "Step " .. i .. " of " .. depth )
38.   print( "Fuel level: " .. t.getFuelLevel() )
39.  
40.   -- move up to top of stair level
41.   for j = 1, climb do
42.     t.digUp()
43.     t.up()
44.   end
45.  
46.   -- move in
47.   dug = t.dig()
48.   went = t.forward()
49.  
50.   -- TODO: variable stair width
51.   -- TODO: place stairs blocks
52.   -- TODO: fill in empty spots?
53.  
54.   -- dig out the stair
55.   for j = 1, stairHeight do
56.     t.turnLeft()
57.     t.dig()
58.     t.turnRight()
59.     t.turnRight()
60.     t.dig()
61.     t.turnLeft()
62.     -- Don't go down on last iteration
63.     if j ~= stairHeight then
64.       t.digDown()
65.       t.down()
66.  
67.       -- TODO: check for empty spots to fill in
68.     end
69.  
70.     -- Only place torches at the top
71.     if j == 1 then
72.       -- place torch every Nth level
73.       if 0 == i % torchEvery then
74.         t.select( torchSlot )
75.         t.placeUp()
76.       end
77.     end
78.   end
79. end