Hopefully working autocrafting

crafter.lua

@@ -1,7 +1,8 @@
---local util = require "util"
---local conf = util.conf
+local _ = require "moses"
+local util = require "util"
+local conf = util.conf
 
-local patterns = loadfile("patterns.lua")()
+local patterns = loadfile "patterns.lua"()
 
 local function descend(intermediateFn, terminalFn, i)
     local pattern = patterns[i]
@@ -28,7 +29,7 @@ end
 local function cost(i)
     local items = {}
     descend(function() end, function(i) table.insert(items, i) end, i)
-    return items
+    return collate(items)
 end
 
 local function tasks(i)
@@ -37,12 +38,32 @@ local function tasks(i)
     return t
 end
 
+-- Splits "mod:item:meta" into {"mod:item", "meta"}
+local function splitItemString(is)
+    local parts = util.split(is, ":")
+    return {parts[1] .. parts[2], tonumber(parts[3]) or 0}
+end
+
+local function craftOne(pat)
+    for slot, itemName in pairs(pat) do
+        local ispl = splitItemString(itemName)
+        util.query { cmd = "extract", meta = ispl[2], name = ispl[1], destInv = conf.name, destSlot = slot }
+    end
+    turtle.craft()
+    util.query { cmd = "insert", fromInv = conf.name, fromSlot = 16 }
+end
+
 local function craft(i)
+    turtle.select(16) -- so that crafting outputs go here
+
     local stored = utils.query { cmd = "list" }
     local reqs = cost(i)
 
     if util.satisfied(reqs, stored) then
-        -- do crafting stuff
+        local tsks = _.reverse(tasks(i)) -- tasks returns the highest level/most complex/most subtask-requring tasks first.
+        for _, tsk in pairs(tsks) do
+            craftOne(tsk)
+        end
     else
         return "ERROR"
     end

server.lua

@@ -94,7 +94,7 @@ function processRequest(msg)
 		local moved = peripheral.call(conf.bufferOutInternal, "pullItems", inv, slot, msg.qty or 64, 1)
 
 		if msg.destInv then
-			moved = peripheral.call(conf.bufferOutExternal, "pushItems", msg.destInv, 1)
+			moved = peripheral.call(conf.bufferOutExternal, "pushItems", msg.destInv, 1, 64, msg.destSlot)
 		end
 
         return {moved, item}

util.lua

@@ -39,6 +39,7 @@ function dump(slot)
 	query { cmd = "insert", fromInv = conf.name, fromSlot = slot }
 end
 
+-- Converts a table of the form {"x", "x", "y"} into {x = 2, y = 1}
 local function collate(items)
     local ret = {}
     for _, i in pairs(items) do
@@ -47,6 +48,7 @@ local function collate(items)
     return ret
 end
 
+-- Checks whether "needs"'s (a collate-formatted table) values are all greater than those of "has"
 local function satisfied(needs, has)
     local good = true
     for k, qty in pairs(needs) do
@@ -55,4 +57,31 @@ local function satisfied(needs, has)
     return good
 end
 
-return { conf = conf, query = query, fetch = fetch, dump = dump, collate = collate, satisfied = satisfied }
+-- Python-style version from http://lua-users.org/wiki/SplitJoin
+-- Why is this not in the standard Lua library?!
+local function split(sSeparator, nMax, bRegexp)
+	assert(sSeparator ~= '')
+	assert(nMax == nil or nMax >= 1)
+ 
+	local aRecord = {}
+ 
+	if self:len() > 0 then
+	   local bPlain = not bRegexp
+	   nMax = nMax or -1
+ 
+	   local nField, nStart = 1, 1
+	   local nFirst,nLast = self:find(sSeparator, nStart, bPlain)
+	   while nFirst and nMax ~= 0 do
+		  aRecord[nField] = self:sub(nStart, nFirst-1)
+		  nField = nField+1
+		  nStart = nLast+1
+		  nFirst,nLast = self:find(sSeparator, nStart, bPlain)
+		  nMax = nMax-1
+	   end
+	   aRecord[nField] = self:sub(nStart)
+	end
+ 
+	return aRecord
+ end
+
+return { conf = conf, query = query, fetch = fetch, dump = dump, collate = collate, satisfied = satisfied, split = split }