From 00f61dfb81100094b64de06ca4e1ef73ef8bcd47 Mon Sep 17 00:00:00 2001
From: Tim <t4im@users.noreply.github.com>
Date: Fri, 30 Jan 2015 05:09:20 +0100
Subject: [PATCH] rewrite extractor dye recipes, adding a few dyes and making it work better with the dye mod also preventing any issues if it is being run in a game without it

---
 technic/helpers.lua |   17 +++++++++--------
 1 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/technic/helpers.lua b/technic/helpers.lua
index 14c4a30..d4306cf 100644
--- a/technic/helpers.lua
+++ b/technic/helpers.lua
@@ -1,9 +1,3 @@
-minetest.swap_node = minetest.swap_node or function(pos, node)
-	local oldmeta = minetest.get_meta(pos):to_table()
-	minetest.set_node(pos, node)
-	minetest.get_meta(pos):from_table(oldmeta)
-end
-
 -- Only changes name, keeps other params
 function technic.swap_node(pos, name)
 	local node = minetest.get_node(pos)
@@ -26,7 +20,6 @@
 	return stack
 end
 
- --------------------------------------------------------------------------------
 local function resolve_name(function_name)
 	local a = _G
 	for key in string.gmatch(function_name, "([^%.]+)(%.?)") do
@@ -42,4 +35,12 @@
 function technic.function_exists(function_name)
 	return type(resolve_name(function_name)) == 'function'
 end
---------------------------------------------------------------------------------
+
+-- if the node is loaded, returns it. If it isn't loaded, load it and return nil.
+function technic.get_or_load_node(pos)
+	local node_or_nil = minetest.get_node_or_nil(pos)
+	if node_or_nil then return node_or_nil end
+	local vm = VoxelManip()
+	local MinEdge, MaxEdge = vm:read_from_map(pos, pos)
+	return nil
+end

--
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