From 8be389e774a99ec5d08ca86b3902bb98310fd58d Mon Sep 17 00:00:00 2001
From: Konstantin Oblaukhov <oblaukhov.konstantin@gmail.com>
Date: Sat, 06 Jul 2013 15:52:41 +0200
Subject: [PATCH] Enriched Uranium.

---
 technic/alloy_furnace.lua |  566 ++++++++++++++++++++++++-------------------------------
 1 files changed, 249 insertions(+), 317 deletions(-)

diff --git a/technic/alloy_furnace.lua b/technic/alloy_furnace.lua
index 83496e1..d36b93c 100644
--- a/technic/alloy_furnace.lua
+++ b/technic/alloy_furnace.lua
@@ -1,46 +1,14 @@
-alloy_recipes ={}
-
-registered_recipes_count=1
-
-function register_alloy_recipe (string1,count1, string2,count2, string3,count3)
-alloy_recipes[registered_recipes_count]={}
-alloy_recipes[registered_recipes_count].src1_name=string1
-alloy_recipes[registered_recipes_count].src1_count=count1
-alloy_recipes[registered_recipes_count].src2_name=string2
-alloy_recipes[registered_recipes_count].src2_count=count2
-alloy_recipes[registered_recipes_count].dst_name=string3
-alloy_recipes[registered_recipes_count].dst_count=count3
-registered_recipes_count=registered_recipes_count+1
-alloy_recipes[registered_recipes_count]={}
-alloy_recipes[registered_recipes_count].src1_name=string2
-alloy_recipes[registered_recipes_count].src1_count=count2
-alloy_recipes[registered_recipes_count].src2_name=string1
-alloy_recipes[registered_recipes_count].src2_count=count1
-alloy_recipes[registered_recipes_count].dst_name=string3
-alloy_recipes[registered_recipes_count].dst_count=count3
-registered_recipes_count=registered_recipes_count+1
-if UI_recipes_hook then
-	minetest.register_craft({
-	type = "alloy",
-	output = string3.." "..count3,
+-- LV Alloy furnace
+minetest.register_craft({
+	output = 'technic:coal_alloy_furnace',
 	recipe = {
-		{string1.." "..count1},
-		{string2.." "..count2},
-			}
-	})
-	end
-end
+		{'default:brick', 'default:brick', 'default:brick'},
+		{'default:brick', '',              'default:brick'},
+		{'default:brick', 'default:brick', 'default:brick'},
+	}
+})
 
-register_alloy_recipe ("technic:copper_dust",3, "technic:tin_dust",1, "technic:bronze_dust",4)
-register_alloy_recipe ("moreores:copper_ingot",3, "moreores:tin_ingot",1, "moreores:bronze_ingot",4)
-register_alloy_recipe ("technic:iron_dust",3, "technic:chromium_dust",1, "technic:stainless_steel_dust",4)
-register_alloy_recipe ("default:steel_ingot",3, "technic:chromium_ingot",1, "technic:stainless_steel_ingot",4)
-register_alloy_recipe ("technic:copper_dust",2, "technic:zinc_dust",1, "technic:brass_dust",3)
-register_alloy_recipe ("moreores:copper_ingot",2, "technic:zinc_ingot",1, "technic:brass_ingot",3)
-register_alloy_recipe ("default:sand",2, "technic:coal_dust",2, "technic:silicon_wafer",1)
-register_alloy_recipe ("technic:silicon_wafer",1, "technic:mithril_dust",1, "technic:doped_silicon_wafer",1)
-
-
+-- FIXME: kpoppel: I'd like to introduce an induction heating element here...
 minetest.register_craft({
 	output = 'technic:alloy_furnace',
 	recipe = {
@@ -50,204 +18,178 @@
 	}
 })
 
+local alloy_furnace_formspec =
+   "invsize[8,9;]"..
+   "list[current_name;src;3,1;1,1;]"..
+   "list[current_name;src2;3,2;1,1;]"..
+   "list[current_name;dst;5,1;2,2;]"..
+   "list[current_player;main;0,5;8,4;]"..
+   "label[0,0;Electric Alloy Furnace]"
 
-alloy_furnace_formspec =
-	"invsize[8,9;]"..
-	"image[1,1;1,2;technic_power_meter_bg.png]"..
-	"list[current_name;src;3,1;1,1;]"..
-	"list[current_name;src2;3,2;1,1;]"..
-	"list[current_name;dst;5,1;2,2;]"..
-	"list[current_player;main;0,5;8,4;]"..
-	"label[0,0;Electric Alloy Furnace]"..
-	"label[1,3;Power level]"
-	
-minetest.register_node("technic:alloy_furnace", {
-	description = "Electric alloy furnace",
-	tiles = {"technic_alloy_furnace_top.png", "technic_machine_bottom.png", "technic_alloy_furnace_side.png",
-		"technic_alloy_furnace_side.png", "technic_alloy_furnace_side.png", "technic_alloy_furnace_front.png"},
-	paramtype2 = "facedir",
-	groups = {cracky=2},
-	legacy_facedir_simple = true,
-	sounds = default.node_sound_stone_defaults(),
-	technic_power_machine=1,
-	internal_EU_buffer=0;
-	interal_EU_buffer_size=2000;
-	on_construct = function(pos)
-		local meta = minetest.env:get_meta(pos)
-		meta:set_float("technic_power_machine", 1)
-		meta:set_string("formspec", alloy_furnace_formspec)
-		meta:set_string("infotext", "Electric Alloy furnace")
-		local inv = meta:get_inventory()
-		inv:set_size("src", 1)
-		inv:set_size("src2", 1)
-		inv:set_size("dst", 4)
-		local EU_used  = 0
-		local furnace_is_cookin = 0
-		local cooked = nil
-		meta:set_float("internal_EU_buffer",0)
-		meta:set_float("internal_EU_buffer_size",2000)
-
-	end,
-	can_dig = function(pos,player)
-		local meta = minetest.env:get_meta(pos);
-		local inv = meta:get_inventory()
-		if not inv:is_empty("dst") then
-			return false end
-		if not inv:is_empty("src") then
-			return false end
-		if not inv:is_empty("src2") then
-			return false end
-		return true
-	end,
+minetest.register_node(
+   "technic:alloy_furnace",
+   {
+      description = "Electric alloy furnace",
+      tiles = {"technic_alloy_furnace_top.png", "technic_machine_bottom.png", "technic_alloy_furnace_side.png",
+	       "technic_alloy_furnace_side.png", "technic_alloy_furnace_side.png", "technic_alloy_furnace_front.png"},
+      paramtype2 = "facedir",
+      groups = {cracky=2},
+      legacy_facedir_simple = true,
+      sounds = default.node_sound_stone_defaults(),
+      on_construct = function(pos)
+			local meta = minetest.env:get_meta(pos)
+			meta:set_string("infotext", "Electric Alloy furnace")
+			meta:set_float("technic_power_machine", 1)
+			meta:set_string("formspec", alloy_furnace_formspec)
+			local inv = meta:get_inventory()
+			inv:set_size("src", 1)
+			inv:set_size("src2", 1)
+			inv:set_size("dst", 4)
+		     end,
+      can_dig = function(pos,player)
+		   local meta = minetest.env:get_meta(pos);
+		   local inv = meta:get_inventory()
+		   if not inv:is_empty("src") or not inv:is_empty("src2") or not inv:is_empty("dst") then
+		      minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
+		      return false
+		   else
+		      return true
+		   end
+		end,
 })
 
-minetest.register_node("technic:alloy_furnace_active", {
-	description = "Alloy Furnace",
-	tiles = {"technic_alloy_furnace_top.png", "technic_machine_bottom.png", "technic_alloy_furnace_side.png",
-		"technic_alloy_furnace_side.png", "technic_alloy_furnace_side.png", "technic_alloy_furnace_front_active.png"},
-	paramtype2 = "facedir",
-	light_source = 8,
-	drop = "technic:alloy_furnace",
-	groups = {cracky=2, not_in_creative_inventory=1},
-	legacy_facedir_simple = true,
-	sounds = default.node_sound_stone_defaults(),
-	internal_EU_buffer=0;
-	interal_EU_buffer_size=2000;
-	technic_power_machine=1,
-	can_dig = function(pos,player)
-		local meta = minetest.env:get_meta(pos);
-		local inv = meta:get_inventory()
-		if not inv:is_empty("dst") then
-			return false
-		elseif not inv:is_empty("src") then
-			return false
-		end
-		return true
-	end,
-})
+minetest.register_node(
+   "technic:alloy_furnace_active",
+   {
+      description = "Alloy Furnace",
+      tiles = {"technic_alloy_furnace_top.png", "technic_machine_bottom.png", "technic_alloy_furnace_side.png",
+	       "technic_alloy_furnace_side.png", "technic_alloy_furnace_side.png", "technic_alloy_furnace_front_active.png"},
+      paramtype2 = "facedir",
+      light_source = 8,
+      drop = "technic:alloy_furnace",
+      groups = {cracky=2,not_in_creative_inventory=1},
+      legacy_facedir_simple = true,
+      sounds = default.node_sound_stone_defaults(),
+      can_dig = function(pos,player)
+		   local meta = minetest.env:get_meta(pos);
+		   local inv = meta:get_inventory()
+		   if not inv:is_empty("src") or not inv:is_empty("src2") or not inv:is_empty("dst") then
+		      minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
+		      return false
+		   else
+		      return true
+		   end
+		end,
+   })
 
-minetest.register_abm({
-	nodenames = {"technic:alloy_furnace","technic:alloy_furnace_active"},
-	interval = 1,
-	chance = 1,
-	
-	action = function(pos, node, active_object_count, active_object_count_wider)
+minetest.register_abm(
+   { nodenames = {"technic:alloy_furnace","technic:alloy_furnace_active"},
+     interval = 1,
+     chance   = 1,
+     action = function(pos, node, active_object_count, active_object_count_wider)
+		 local meta         = minetest.env:get_meta(pos)
+		 local eu_input     = meta:get_int("LV_EU_input")
+		 local state        = meta:get_int("state")
+		 local next_state   = state
 
-		local meta = minetest.env:get_meta(pos)
-		internal_EU_buffer=meta:get_float("internal_EU_buffer")
-		internal_EU_buffer_size=meta:get_float("internal_EU_buffer")
-		local load = math.floor(internal_EU_buffer/2000 * 100)
-		meta:set_string("formspec",
-				"invsize[8,9;]"..
-				"image[1,1;1,2;technic_power_meter_bg.png^[lowpart:"..
-						(load)..":technic_power_meter_fg.png]"..
-				"list[current_name;src;3,1;1,1;]"..
-				"list[current_name;src2;3,2;1,1;]"..
-				"list[current_name;dst;5,1;2,2;]"..
-				"list[current_player;main;0,5;8,4;]"..
-				"label[0,0;Electric Alloy Furnace]"..
-				"label[1,3;Power level]")
+		 -- Machine information
+		 local machine_name         = "Electric Alloy Furnace"
+		 local machine_node         = "technic:alloy_furnace"
+		 local machine_state_demand = { 50, 600 }
 
-		local inv = meta:get_inventory()
-		
-		local furnace_is_cookin = meta:get_int("furnace_is_cookin")
-		
-		
-		local srclist = inv:get_list("src")
-		local srclist2 = inv:get_list("src2")
-		
-		srcstack = inv:get_stack("src", 1)
-		if srcstack then src_item1=srcstack:to_table() end
-		srcstack = inv:get_stack("src2", 1)
-		if srcstack then src_item2=srcstack:to_table() end
-		dst_index=nil
+		 -- Setup meta data if it does not exist. state is used as an indicator of this
+		 if state == 0 then
+		    meta:set_int("state", 1)
+		    meta:set_int("LV_EU_demand", machine_state_demand[1])
+		    meta:set_int("LV_EU_input", 0)
+		    meta:set_int("tube_time", 0)
+		    return
+		 end
+			 
+		 -- Power off automatically if no longer connected to a switching station
+		 technic.switching_station_timeout_count(pos, "LV")
+			 
+		 -- State machine
+		 if eu_input == 0 then
+		    -- Unpowered - go idle
+		    hacky_swap_node(pos, machine_node)
+		    meta:set_string("infotext", machine_name.." Unpowered")
+		    next_state = 1
+		 elseif eu_input == machine_state_demand[state] then
+		    -- Powered - do the state specific actions
+			    
+		    -- Execute always if powered logic
+		    local inv    = meta:get_inventory()
+		    local empty  = 1
+		    local recipe = nil
+		    local result = nil
 
-		if src_item1 and src_item2 then 
-				dst_index=get_cook_result(src_item1,src_item2) 
-				end
-		
-		
-		if (furnace_is_cookin == 1) then
-			if internal_EU_buffer>=150 then
-			internal_EU_buffer=internal_EU_buffer-150;
-			meta:set_float("internal_EU_buffer",internal_EU_buffer)
-			meta:set_float("src_time", meta:get_float("src_time") + 1)
-			if dst_index and meta:get_float("src_time") >= 4 then
-				-- check if there's room for output in "dst" list
-				dst_stack={}
-				dst_stack["name"]=alloy_recipes[dst_index].dst_name
-				dst_stack["count"]=alloy_recipes[dst_index].dst_count
-				if inv:room_for_item("dst",dst_stack) then
-					-- Put result in "dst" list
-					inv:add_item("dst",dst_stack)
-					-- take stuff from "src" list
-					for i=1,alloy_recipes[dst_index].src1_count,1 do
-						srcstack = inv:get_stack("src", 1)
-						srcstack:take_item()
-						inv:set_stack("src", 1, srcstack)
-						end
-					for i=1,alloy_recipes[dst_index].src2_count,1 do
-						srcstack = inv:get_stack("src2", 1)
-						srcstack:take_item()
-						inv:set_stack("src2", 1, srcstack)
-						end
+		    -- Get what to cook if anything
+		    local srcstack  = inv:get_stack("src", 1)
+		    local src2stack = inv:get_stack("src2", 1)
+		    local src_item1 = nil
+		    local src_item2 = nil
+		    if srcstack and src2stack then
+		       src_item1 = srcstack:to_table()
+		       src_item2 = src2stack:to_table()
+		       empty     = 0
+		    end
+	       
+		    if src_item1 and src_item2 then
+		       recipe = technic.get_alloy_recipe(src_item1,src_item2)
+		    end
+		    if recipe then
+		       result = { name=recipe.dst_name, count=recipe.dst_count}
+		    end
 
+		    if recipe then
+		       print("recipe "..recipe.dst_name.." : result "..result.name.." : empty "..empty.." : src_item1 "..src_item1.name.." : src_item2 "..src_item2.name)
+		    end
 
-				else
-					print("Furnace inventory full!")
-				end
-				meta:set_string("src_time", 0)
-			end
-			end		
-		end
-		
-		
+		    if state == 1 then
+		       hacky_swap_node(pos, machine_node)
+		       meta:set_string("infotext", machine_name.." Idle")
+		       
+		       if empty == 0 and recipe and inv:room_for_item("dst", result) then
+			  meta:set_string("infotext", machine_name.." Active")
+			  meta:set_string("src_time", 0)
+			  next_state = 2
+		       end
 
-		
-		if dst_index and meta:get_int("furnace_is_cookin")==0 then
-			hacky_swap_node(pos,"technic:alloy_furnace_active")
-			meta:set_string("infotext","Electric Alloy Furnace active")
-			meta:set_int("furnace_is_cookin",1)
-			meta:set_string("src_time", 0)
-			return
-			end
+		    elseif state == 2 then
+		       hacky_swap_node(pos, machine_node.."_active")
+		       meta:set_int("src_time", meta:get_int("src_time") + 1)
+		       if meta:get_int("src_time") == 4 then -- 4 ticks per output
+			  meta:set_string("src_time", 0)
+			  -- check if there's room for output in "dst" list and that we have the materials
+			  if recipe and inv:room_for_item("dst", result) then
+			     -- Take stuff from "src" list
+			     srcstack:take_item(recipe.src1_count)
+			     inv:set_stack("src", 1, srcstack)
+			     src2stack:take_item(recipe.src2_count)
+			     inv:set_stack("src2", 1, src2stack)
+			   -- Put result in "dst" list
+			     inv:add_item("dst",result)
+			  else
+			     next_state = 1
+			  end
+		       end
+		    end
+		    -- Change state?
+		    if next_state ~= state then
+		       meta:set_int("LV_EU_demand", machine_state_demand[next_state])
+		       meta:set_int("state", next_state)
+		    end
+		 end
+	      end,
+  })
 
-			
-		if meta:get_int("furnace_is_cookin")==0 or dst_index==nil then
-			hacky_swap_node(pos,"technic:alloy_furnace")
-			meta:set_string("infotext","Electric Alloy Furnace inactive")
-			meta:set_int("furnace_is_cookin",0)
-			meta:set_string("src_time", 0)
-		end
-	
-end,		
-})
+technic.register_LV_machine ("technic:alloy_furnace","RE")
+technic.register_LV_machine ("technic:alloy_furnace_active","RE")
 
-function get_cook_result(src_item1, src_item2)
-local counter=registered_recipes_count-1
-for i=1, counter,1 do
-if	alloy_recipes[i].src1_name==src_item1["name"] and
-	alloy_recipes[i].src2_name==src_item2["name"] and
-	alloy_recipes[i].src1_count<=src_item1["count"] and
-	alloy_recipes[i].src2_count<=src_item2["count"] 
-	then return i end
-end
-return nil
-end
-
-
---coal driven alloy furnace:
-
-minetest.register_craft({
-	output = 'technic:coal_alloy_furnace',
-	recipe = {
-		{'default:brick', 'default:brick', 'default:brick'},
-		{'default:brick', '', 'default:brick'},
-		{'default:brick', 'default:brick', 'default:brick'},
-	}
-})
-
-
+--------------------------------------------------
+-- coal driven alloy furnace. This uses no EUs:
+--------------------------------------------------
 coal_alloy_furnace_formspec =
 	"size[8,9]"..
 	"label[0,0;Alloy Furnace]"..
@@ -257,7 +199,7 @@
 	"list[current_name;src2;3,1;1,1;]"..
 	"list[current_name;dst;5,1;2,2;]"..
 	"list[current_player;main;0,5;8,4;]"
-	
+
 minetest.register_node("technic:coal_alloy_furnace", {
 	description = "Alloy Furnace",
 	tiles = {"technic_coal_alloy_furnace_top.png", "technic_coal_alloy_furnace_bottom.png", "technic_coal_alloy_furnace_side.png",
@@ -275,9 +217,6 @@
 		inv:set_size("src", 1)
 		inv:set_size("src2", 1)
 		inv:set_size("dst", 4)
-		local furnace_is_cookin = 0
-		local dst_index = nil
-
 	end,
 	can_dig = function(pos,player)
 		local meta = minetest.env:get_meta(pos);
@@ -313,10 +252,10 @@
 	nodenames = {"technic:coal_alloy_furnace","technic:coal_alloy_furnace_active"},
 	interval = 1,
 	chance = 1,
-	
+
 	action = function(pos, node, active_object_count, active_object_count_wider)
 		local meta = minetest.env:get_meta(pos)
-		for i, name in ipairs({
+		for i, name in pairs({
 				"fuel_totaltime",
 				"fuel_time",
 				"src_totaltime",
@@ -327,108 +266,101 @@
 			end
 		end
 
-		local inv = meta:get_inventory()
+		local inv    = meta:get_inventory()
+		local recipe = nil
 
+		-- Get what to cook if anything
+		local srcstack = inv:get_stack("src", 1)
+		if srcstack then src_item1=srcstack:to_table() end
+		
+		local src2stack = inv:get_stack("src2", 1)
+		if src2stack then src_item2=src2stack:to_table() end
+		
+		if src_item1 and src_item2 then
+		   recipe = technic.get_alloy_recipe(src_item1,src_item2)
+		end
+
+		local was_active = false
+
+		if meta:get_float("fuel_time") < meta:get_float("fuel_totaltime") then
+		   was_active = true
+		   meta:set_float("fuel_time", meta:get_float("fuel_time") + 1)
+		   meta:set_float("src_time", meta:get_float("src_time") + 1)
+		   if recipe and meta:get_float("src_time") == 6 then
+		      -- check if there's room for output in "dst" list
+		      local dst_stack = { name=recipe.dst_name, count=recipe.dst_count}
+		      if inv:room_for_item("dst",dst_stack) then
+			 -- Take stuff from "src" list
+			 srcstack:take_item(recipe.src1_count)
+			 inv:set_stack("src", 1, srcstack)
+			 src2stack:take_item(recipe.src2_count)
+			 inv:set_stack("src2", 1, src2stack)
+			 -- Put result in "dst" list
+			 inv:add_item("dst",dst_stack)
+		      else
+			 print("Furnace inventory full!") -- Silly code...
+		      end
+		      meta:set_string("src_time", 0)
+		   end
+		end
+		
+		if meta:get_float("fuel_time") < meta:get_float("fuel_totaltime") then
+		   local percent = math.floor(meta:get_float("fuel_time") /
+					   meta:get_float("fuel_totaltime") * 100)
+		   meta:set_string("infotext","Furnace active: "..percent.."%")
+		   hacky_swap_node(pos,"technic:coal_alloy_furnace_active")
+		   meta:set_string("formspec",
+				   "size[8,9]"..
+				      "label[0,0;Electric Alloy Furnace]"..
+				      "image[2,2;1,1;default_furnace_fire_bg.png^[lowpart:"..
+				      (100-percent)..":default_furnace_fire_fg.png]"..
+				   "list[current_name;fuel;2,3;1,1;]"..
+				   "list[current_name;src;2,1;1,1;]"..
+				   "list[current_name;src2;3,1;1,1;]"..
+				   "list[current_name;dst;5,1;2,2;]"..
+				   "list[current_player;main;0,5;8,4;]")
+		   return
+		end
+
+		-- FIXME: Make this look more like the electrical version.
+		-- This code refetches the recipe to see if it can be done again after the iteration
 		srcstack = inv:get_stack("src", 1)
 		if srcstack then src_item1=srcstack:to_table() end
 		srcstack = inv:get_stack("src2", 1)
 		if srcstack then src_item2=srcstack:to_table() end
-		dst_index=nil
-
-		if src_item1 and src_item2 then 
-				dst_index=get_cook_result(src_item1,src_item2) 
-				end	
-		
-		local was_active = false
-		
-		if meta:get_float("fuel_time") < meta:get_float("fuel_totaltime") then
-			was_active = true
-			meta:set_float("fuel_time", meta:get_float("fuel_time") + 1)
-			meta:set_float("src_time", meta:get_float("src_time") + 1)
-			if dst_index and meta:get_float("src_time") >= 5 then
-				-- check if there's room for output in "dst" list
-				dst_stack={}
-				dst_stack["name"]=alloy_recipes[dst_index].dst_name
-				dst_stack["count"]=alloy_recipes[dst_index].dst_count			
-				if inv:room_for_item("dst",dst_stack) then
-					-- Put result in "dst" list
-					inv:add_item("dst", dst_stack)
-					-- take stuff from "src" list
-					for i=1,alloy_recipes[dst_index].src1_count,1 do
-						srcstack = inv:get_stack("src", 1)
-						srcstack:take_item()
-						inv:set_stack("src", 1, srcstack)
-						end
-					for i=1,alloy_recipes[dst_index].src2_count,1 do
-						srcstack = inv:get_stack("src2", 1)
-						srcstack:take_item()
-						inv:set_stack("src2", 1, srcstack)
-						end
-				else
-					print("Furnace inventory full!")
-				end
-				meta:set_string("src_time", 0)
-			end
-		end
-		
-		if meta:get_float("fuel_time") < meta:get_float("fuel_totaltime") then
-			local percent = math.floor(meta:get_float("fuel_time") /
-					meta:get_float("fuel_totaltime") * 100)
-			meta:set_string("infotext","Furnace active: "..percent.."%")
-			hacky_swap_node(pos,"technic:coal_alloy_furnace_active")
-			meta:set_string("formspec",
-				"size[8,9]"..
-				"label[0,0;Electric Alloy Furnace]"..
-				"image[2,2;1,1;default_furnace_fire_bg.png^[lowpart:"..
-						(100-percent)..":default_furnace_fire_fg.png]"..
-				"list[current_name;fuel;2,3;1,1;]"..
-				"list[current_name;src;2,1;1,1;]"..
-				"list[current_name;src2;3,1;1,1;]"..
-				"list[current_name;dst;5,1;2,2;]"..
-				"list[current_player;main;0,5;8,4;]")
-			return
+		if src_item1 and src_item2 then
+		   recipe = technic.get_alloy_recipe(src_item1,src_item2)
 		end
 
+		if recipe==nil then
+		   if was_active then
+		      meta:set_string("infotext","Furnace is empty")
+		      hacky_swap_node(pos,"technic:coal_alloy_furnace")
+		      meta:set_string("formspec", coal_alloy_furnace_formspec)
+		   end
+		   return
+		end
+
+		-- Next take a hard look at the fuel situation
 		local fuel = nil
 		local fuellist = inv:get_list("fuel")
-		
-		srcstack = inv:get_stack("src", 1)
-		if srcstack then src_item1=srcstack:to_table() end
-		srcstack = inv:get_stack("src2", 1)
-		if srcstack then src_item2=srcstack:to_table() end
-		dst_index=nil
 
-		if src_item1 and src_item2 then 
-				dst_index=get_cook_result(src_item1,src_item2) 
-				end
-		
-		
 		if fuellist then
-			fuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
+		   fuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
 		end
 
 		if fuel.time <= 0 then
-			meta:set_string("infotext","Furnace out of fuel")
-			hacky_swap_node(pos,"technic:coal_alloy_furnace")
-			meta:set_string("formspec", coal_alloy_furnace_formspec)
-			return
-		end
-
-		if dst_index==nil then
-			if was_active then
-				meta:set_string("infotext","Furnace is empty")
-				hacky_swap_node(pos,"technic:coal_alloy_furnace")
-				meta:set_string("formspec", coal_alloy_furnace_formspec)
-			end
-			return
+		   meta:set_string("infotext","Furnace out of fuel")
+		   hacky_swap_node(pos,"technic:coal_alloy_furnace")
+		   meta:set_string("formspec", coal_alloy_furnace_formspec)
+		   return
 		end
 
 		meta:set_string("fuel_totaltime", fuel.time)
 		meta:set_string("fuel_time", 0)
-		
+
 		local stack = inv:get_stack("fuel", 1)
 		stack:take_item()
 		inv:set_stack("fuel", 1, stack)
-	
-end,		
-})
+	     end,
+     })

--
Gitblit v1.8.0