botania

tArgs = { ... }
if #tArgs ~= 1 then
   print("Usage: botania <type>");
   print("<type> is one of: wood, stone");
   return;
end

pos = 1;
runMe = 1;
empty = 0;
napTime = 10;
waitTime = 2;
findType = "";
output = "";

function nextPos()
   pos = pos + 1;
   if pos > 16 then
      pos = 1;
   end
end

function findBlock(findName)
   local lpos = pos;
   local tryNext = 0;
   turtle.select(lpos);
   if turtle.getItemCount(lpos) > 0 then
      local itemData = turtle.getItemDetail();
--print("Slot "..lpos..": "..itemData.name);
      if itemData.name == findName then
         empty = 0;
         return true;
      else
         tryNext = 1;
      end
   else
      if empty == 16 then
         return false;
      else
         tryNext = 1;
      end
   end
   if tryNext then
      tryNext = 0;
      empty = empty + 1;
      nextPos();
      return findBlock(findName);
   end
end

function placeBlock(placeName)
   if findBlock(placeName) == false then
      return false;
   end
   local count = turtle.getItemCount();
   while count > 0 do
      if turtle.placeDown() then
         return true;
      else
         sleep(waitTime);
      end
      if findBlock(placeName) == false then
         return false;
      end
      count = turtle.getItemCount();
   end
end

function getTypeName(shortName)
   local types = {
      ["wood"] = "minecraft:log",
      ["stone"] = "minecraft:stone"
   }
   if types[shortName] then
      if shortName == "wood" then
         output = "Botania:livingwood";
      else
         output = "Botania:livingrock";
      end
      return types[shortName];
   else
      return false;
   end
end

function stopMe()
   runMe = 0;
end

--Main Loop Below
local typeName = getTypeName(tArgs[1]);
if typeName == false then
   return;
end
while runMe == 1 do
   if placeBlock(typeName) then
      while turtle.detectDown() do
         sleep(napTime);
         local success, data = turtle.inspectDown();
         if success then
            if data.name == output then
               turtle.digDown();
            end
         end
      end
   else
      print("Sleeping for "..napTime.." seconds.");
      empty = 0;
      sleep(napTime);
   end
end