View difference between Paste ID: ZS2TiLMt and 6mKBdMvD

--- variation on box miner but instead of bobbing up and down like a sewing needle this is the more classic run straight through
+-- local id=1 -- obviously set per turtle's position as explained above, moved into a .txt config file assigned below
--- also as I'm doing this for clay I'll set it to only dig up or down if there is clay present.
+
 -- 7 turtles, id set's it's position
-depth=3 -- small makes testing retrieval easier if I get flip logic wrong
+-- 7 6 5
-width=8
+-- 4 3 2
-length=8
+--   1
-flip=0
+-- 1 just places soul sand if it's block is clear
 -- 2,3, and 4 place soul sand if they're block is clear and then blip a redstone signal up
 -- 5,6, and 7 wait for redstone blip on bottom and then place wither skull's
 -- Note there's no need to verify inventory since they don't pick stuff up, just fill the inventory with sand for 1-4
 -- and skulls for 5-7 and it should construct withers.
 -- This really only works if explosions are disabled in your claim...
 -- I added the requirement for a redstone signal at the back to allow a way to turn it on and off.
-local function goUp()
+-- I also added a dig command to clear out the block in front of it, this helps 'reset' things in case the skulls are placed first
-  while not turtle.up() do
+-- (possibly due to running out of soulsand or something)
-    turtle.digUp()
+-- I added a dig at the 'off' redstone state to make accessing the turtles easier since there's a block in the back to transmit the
 -- redstone signal and with the sandstone in the front accessing turtle 3 in particular was a bother
 
 local function getTurtleID()
-local function mineClayUp()
+    local file = fs.open("turtleID.txt", "r")
-      local has_block, data = turtle.inspectUp()
+    if not file then
-      if has_block then
+        error("Failed to open turtleID.txt. Please create the file with a number from 1 to 7.")
-        if data.name == "minecraft:clay" then
+
-          turtle.digUp()
+    local id = tonumber(file.readLine())
     file.close()
     if not id or id < 1 or id > 7 then
         error("Invalid turtle ID in turtleID.txt. Must be a number from 1 to 7.")
     end
-local function mineClayDown()
+    return id
-      local has_block, data = turtle.inspectDown()
+
-      if has_block then
+
-        if data.name == "minecraft:clay" then
+local turtleID = getTurtleID()
-          turtle.digDown()
+
 function findNextItem()
     local currentSlot = turtle.getSelectedSlot()
     local totalSlots = 16  -- Turtle has 16 slots
 
-local function goForward()
+    -- Check all slots, starting from current
-    while not turtle.forward() do
+    for i = 0, totalSlots - 1 do
-      mineClayDown()
+        local slotToCheck = (currentSlot + i - 1) % totalSlots + 1
-      mineClayUp()
+        turtle.select(slotToCheck)
-      turtle.dig()
+        if turtle.getItemCount() > 0 then
-      mineClayUp()
+            return true  -- Found a non-empty slot
-      mineClayDown()
+
     end
 
     -- No non-empty slots found
-local function goDown()
+    turtle.select(currentSlot)  -- Return to original slot
-  turtle.digDown()
+    return false
-  turtle.down()
+
 
 
-turtle.digDown()
+-- debug function
-turtle.down()
+
-turtle.digDown()
+
-turtle.down()
+
 end
-for z=1,depth do
+
 local function placeForward()
-  for x=1,length do
+  local has_block, data = turtle.inspect()
   if not has_block then
-    for z=1,width do
+    turtle.place()
-      goForward()
+    return 1
-    end  -- at width
+
-    if flip==0 then
+  return 0
-      flip=1
+
-      turtle.turnRight()
+
-      goForward()
+while findNextItem() do -- might as well exit if we run out of stuff
-      turtle.turnRight()
+
   while redstone.getInput("back")==true do
-      turtle.turnLeft()
+    if turtleID>4 then
-      goForward()
+      local loop=0
-      turtle.turnLeft()
+      print("Waiting for redstone signal from below.")
-      flip=0
+      while redstone.getInput("bottom")==false do
         sleep(.5) -- wait for go signal
-  end -- at length
+        -- periodically the skulls get placed too soon, so we'll let #6 do an intermittent dig to reset things
         if turtleID==6 then
-  goDown()
+          loop=loop+1 -- 20 loops should be ~10 seconds in .5 second steps
-  goDown()
+          if loop==20 then
             turtle.dig()
-  if flip==0 then
+            turtle.place()
-    turtle.turnLeft()
+            loop=0
-  else
+          end
-    turtle.TurnRight()
+
       end
---  print("Debug: Check heading and depth.")
+      print("Redstone signal received.")
---  pauseMe()
+      redstone.setOutput("bottom",true)
-end -- at depth
+      while redstone.getInput("bottom")==true do
         sleep(.5) -- wait for signal to stop=ack below
-print("Return to surface (if applicable).")
+
-x=0
+      print("Redstone signal acknowledged.")
-while not turtle.up() or x<(depth+2) do -- up until you hit air or reach 'depth' height (relative 0)
+      redstone.setOutput("bottom",false)
-  goUp()
+      while placeForward()==0 do
-  x=x+1
+        sleep(.5) -- try until successful
  -- the loop==20 above should cover this, if this fails it's probably empty the outer loop should catch that  turtle.dig() -- if it's failing try to clear the blockage
       end
       print("Block placed forward")
     else
       if placeForward()==1 then
         print("placed inventory forward")
         if turtleID>1 and turtleID<5 then -- need to exclude 1 since it doesn't get signaled back by turtleID 3 (not necessary)
           redstone.setOutput("top",true)
           while redstone.getInput("top")==false do
             sleep(.5)
           end
           redstone.setOutput("top",false) -- wait for turtle above to acknowledge signal
         end
       else
         print("Space blocked")
       end
       sleep(5)
 -- still not need with loop=20 above      turtle.dig() -- not 100% sure this may require a mining turtle...so splurge and invest in a diamond pick
     end
 
     print("Turtle ",turtleID," Waiting for redstone startup at 5 second intervals")
     sleep(5)
 
   -- redstone signal present loop
   end
 
 print("available item slot selected (or exit)")
 -- inventory not empty loop
 end
 print("exit it is.")
 pauseMe()