built on 16/08/2021 20:22:44

minecart/entitylib.lua

@@ -85,6 +85,10 @@ local function running(self)
 	
 	if self.reenter then -- through monitoring
 		cart_pos = H2P(self.reenter[1])
+		-- pos correction on slopes
+		if not minecart.is_rail(cart_pos) then
+			cart_pos.y = cart_pos.y - 1
+		end
 		wayp_pos = cart_pos
 		is_junction = false
 		self.waypoint = {pos = H2P(self.reenter[2]), power = 0, dot = self.reenter[4]}
@@ -162,7 +166,7 @@ local function running(self)
 	
 	-- Got stuck somewhere
 	if new_speed < 0.1 or dist < 0 then
-		print("Got stuck somewhere", new_speed, dist)
+		minetest.log("warning", "[Minecart] Got stuck somewhere " .. new_speed .. " " .. dist)
 		stop_cart(self, wayp_pos)
 		return
 	end

minecart/monitoring.lua

@@ -117,7 +117,7 @@ local function monitoring(cycle)
 					cart.last_pos = vector.round(pos)
 					--print("entity card " .. cart.userID .. " at " .. P2S(cart.last_pos))
 				else
-					print("entity card without pos!")
+					minetest.log("warning", "[Minecart] entity card without pos!")
 				end
 				push(cycle, cart)
 			elseif cart.checkpoints then
@@ -130,7 +130,7 @@ local function monitoring(cycle)
 					end
 					push(cycle, cart)
 				else
-					print("zombie got lost")
+					minetest.log("warning", "[Minecart] zombie got lost")
 				end
 			else
 				local pos = cart.last_pos or cart.pos

minecart/recording.lua

@@ -137,6 +137,10 @@ end
 
 function minecart.recording_waypoints(self)	
 	local pos = vector.round(self.object:get_pos())
+	-- pos correction on slopes
+	if not minecart.is_rail(pos) then
+		pos.y = pos.y - 1
+	end
 	-- hier müsste überprüfung dest_pos rein
 	self.sum_speed = self.sum_speed + self.curr_speed 
 	local wp_pos = check_waypoint(self, pos)

minecart/storage.lua

@@ -110,7 +110,7 @@ function minecart.get_route(pos)
 				M(pos):set_int("time", 0)
 				return
 			end
-			return minetest.deserialize(s)
+			return route
 		end
 	end
 end

networks/init.lua

@@ -30,7 +30,6 @@ dofile(MP .. "/power.lua")
 dofile(MP .. "/liquid.lua")
 dofile(MP .. "/control.lua")
 
-print("networks_test_enabled", minetest.settings:get_bool("networks_test_enabled"))
 if minetest.settings:get_bool("networks_test_enabled") == true then
 	-- Only for testing/demo purposes
 	dofile(MP .. "/test/test_liquid.lua")

networks/networks.lua

@@ -328,7 +328,7 @@ local function remove_outdated_networks()
 	for _,item in ipairs(to_be_deleted) do
 		local net_name, netID = unpack(item)
 		Networks[net_name][netID] = nil
-		print("Network " .. netw_num(netID) .. " timed out")
+		--print("Network " .. netw_num(netID) .. " timed out")
 	end
 	minetest.after(60, remove_outdated_networks)
 end

techage/README.md

@@ -31,6 +31,9 @@ Copyright (C) 2019-2021 Joachim Stolberg
 Code: Licensed under the GNU AGPL version 3 or later. See LICENSE.txt  
 Textures: CC BY-SA 3.0
 
+The TA1 mill sound is from https://freesound.org/people/JustinBW/sounds/70200/
+The TA1 watermill sound is from https://freesound.org/people/bmoreno/sounds/164182/
+
 Many thanks to Thomas-S and others for their contributions
 
 

techage/basic_machines/gravelrinser.lua

@@ -150,21 +150,22 @@ local function washing(pos, crd, nvm, inv)
 	local src = ItemStack("techage:sieved_gravel")
 	local dst = ItemStack("default:sand")
 	if inv:contains_item("src", src) then
+		if not inv:room_for_item("dst", dst) then
+			crd.State:blocked(pos, nvm)
+			return
+		end
 		local ore = get_random_gravel_ore()
 		if ore then
 			add_object({x=pos.x, y=pos.y+1, z=pos.z}, ore)
 		end
+		inv:add_item("dst", dst)
+		inv:remove_item("src", src)
+		crd.State:keep_running(pos, nvm, COUNTDOWN_TICKS)
+		return
 	else
 		crd.State:idle(pos, nvm)
 		return
 	end
-	if not inv:room_for_item("dst", dst) then
-		crd.State:idle(pos, nvm)
-		return
-	end
-	inv:add_item("dst", dst)
-	inv:remove_item("src", src)
-	crd.State:keep_running(pos, nvm, COUNTDOWN_TICKS)
 end
 
 local function keep_running(pos, elapsed)

techage/basic_machines/grinder.lua

@@ -23,8 +23,9 @@ local STANDBY_TICKS = 3
 local COUNTDOWN_TICKS = 4
 local CYCLE_TIME = 4
 
-
--- Grinder recipes
+-- Grinder recipes TA1
+local RecipesTa1 = {}
+-- Grinder recipes TA2 - TA4
 local Recipes = {}
 
 local function formspec(self, pos, nvm)
@@ -250,6 +251,79 @@ local node_name_ta2, node_name_ta3, node_name_ta4 =
 		tube_sides = {L=1, R=1, U=1},
 	})
 
+-------------------------------------------------------------------------------
+-- TA1 Mill (watermill)
+-------------------------------------------------------------------------------
+local formspecStr = "size[8,8]"..
+	default.gui_bg..
+	default.gui_bg_img..
+	default.gui_slots..
+	"list[context;src;1,1;1,1;]"..
+	"item_image[1,1;1,1;farming:wheat]"..
+	"image[1,1;1,1;techage_form_mask.png]"..
+	"image[3.5,1;1,1;techage_form_arrow.png]"..
+	"list[context;dst;6,1;1,1;]"..
+	"item_image[6,1;1,1;farming:flour]"..
+	"image[6,1;1,1;techage_form_mask.png]"..
+	"list[current_player;main;0,4;8,4;]"..
+	"listring[context;dst]"..
+	"listring[current_player;main]"..
+	"listring[context;src]"..
+	"listring[current_player;main]"..
+	default.get_hotbar_bg(0, 4)
+
+local function node_timer(pos, elapsed)
+	if techage.ta1_mill_has_power(pos, 2) then
+		local inv = M(pos):get_inventory()
+		local stack = inv:get_stack("src", 1)
+		if not stack:is_empty() then
+			local name = stack:get_name()
+			if RecipesTa1[name] then
+				local recipe = RecipesTa1[name]
+				src_to_dst(stack, 1, name, 1, recipe.inp_num, inv, recipe.output)
+			end
+		end
+	end
+	return true
+end
+
+minetest.register_node("techage:ta1_mill_base", {
+	description = S("TA1 Mill Base"),
+	tiles = {
+		"techage_mill_base.png",
+		"default_stone_brick.png",
+	},
+	after_place_node = function(pos, placer)
+		M(pos):set_string("formspec", formspecStr)
+		local inv = M(pos):get_inventory()
+		inv:set_size('src', 1)
+		inv:set_size('dst', 1)
+		minetest.get_node_timer(pos):start(4)
+	end,
+	can_dig = can_dig,
+	on_timer = node_timer,
+	allow_metadata_inventory_put = allow_metadata_inventory_take,
+	allow_metadata_inventory_move = allow_metadata_inventory_move,
+	allow_metadata_inventory_take = allow_metadata_inventory_take,
+	is_ground_content = false,
+	groups = {cracky = 2, crumbly = 2, choppy = 2},
+})
+
+techage.register_node({"techage:ta1_mill_base"}, {
+	on_node_load = function(pos, node)
+		minetest.get_node_timer(pos):start(4)
+	end,
+})	
+
+minetest.register_craft({
+	output = "techage:ta1_mill_base",
+	recipe = {
+		{"default:stonebrick", "", "default:stonebrick"},
+		{"", "techage:iron_ingot", ""},
+		{"default:stonebrick", "", "default:stonebrick"},
+	},
+})
+
 minetest.register_craft({
 	output = node_name_ta2,
 	recipe = {
@@ -284,16 +358,34 @@ if minetest.global_exists("unified_inventory") then
 		width = 2,
 		height = 2,
 	})
+	unified_inventory.register_craft_type("milling", {
+		description = S("Milling"),
+		icon = 'techage_mill_inv.png',
+		width = 2,
+		height = 2,
+	})
 end
 
-function techage.add_grinder_recipe(recipe)
+function techage.add_grinder_recipe(recipe, ta1_permitted)
 	local name, num = unpack(string.split(recipe.input, " ", false, 1))
-	Recipes[name] = {input = name,inp_num = tonumber(num) or 1, output = recipe.output}
+	if minetest.registered_items[name] then
+		if ta1_permitted then
+			RecipesTa1[name] = {input = name,inp_num = tonumber(num) or 1, output = recipe.output}
 			
-	if minetest.global_exists("unified_inventory") then
-		recipe.items = {recipe.input}
-		recipe.type = "grinding"
-		unified_inventory.register_craft(recipe)
+			if minetest.global_exists("unified_inventory") then
+				recipe.items = {recipe.input}
+				recipe.type = "milling"
+				unified_inventory.register_craft(table.copy(recipe))
+			end
+		end
+		
+		Recipes[name] = {input = name,inp_num = tonumber(num) or 1, output = recipe.output}
+		
+		if minetest.global_exists("unified_inventory") then
+			recipe.items = {recipe.input}
+			recipe.type = "grinding"
+			unified_inventory.register_craft(recipe)
+		end
 	end
 end	
 
@@ -326,14 +418,14 @@ techage.add_grinder_recipe({input="default:acacia_tree", output="default:acacia_
 techage.add_grinder_recipe({input="default:aspen_tree", output="default:aspen_leaves 8"})
 
 if minetest.global_exists("farming") then
-	techage.add_grinder_recipe({input="farming:wheat 3", output="farming:flour"})
-	techage.add_grinder_recipe({input="farming:seed_wheat 6", output="farming:flour"})
-	techage.add_grinder_recipe({input="farming:barley 3", output="farming:flour"})
-	techage.add_grinder_recipe({input="farming:seed_barley 6", output="farming:flour"})
-	techage.add_grinder_recipe({input="farming:rye 3", output="farming:flour"})
-	techage.add_grinder_recipe({input="farming:seed_rye 6", output="farming:flour"})
-	techage.add_grinder_recipe({input="farming:rice 3", output="farming:rice_flour"})
-	techage.add_grinder_recipe({input="farming:seed_rice 6", output="farming:rice_flour"})
-	techage.add_grinder_recipe({input="farming:oat 3", output="farming:flour"})
-	techage.add_grinder_recipe({input="farming:seed_oat 6", output="farming:flour"})
+	techage.add_grinder_recipe({input="farming:wheat 3", output="farming:flour"}, true)
+	techage.add_grinder_recipe({input="farming:seed_wheat 6", output="farming:flour"}, true)
+	techage.add_grinder_recipe({input="farming:barley 3", output="farming:flour"}, true)
+	techage.add_grinder_recipe({input="farming:seed_barley 6", output="farming:flour"}, true)
+	techage.add_grinder_recipe({input="farming:rye 3", output="farming:flour"}, true)
+	techage.add_grinder_recipe({input="farming:seed_rye 6", output="farming:flour"}, true)
+	techage.add_grinder_recipe({input="farming:rice 3", output="farming:rice_flour"}, true)
+	techage.add_grinder_recipe({input="farming:seed_rice 6", output="farming:rice_flour"}, true)
+	techage.add_grinder_recipe({input="farming:oat 3", output="farming:flour"}, true)
+	techage.add_grinder_recipe({input="farming:seed_oat 6", output="farming:flour"}, true)
 end

techage/doc/manual_DE.lua

@@ -15,6 +15,8 @@ techage.manual_DE.aTitel = {
   "1,TA1: Eisenzeitalter",
   "2,Köhler / Coal Pile",
   "2,Kohlebrenner / Coal Burner",
+  "2,Wassermühle",
+  "3,TA1 Mühle",
   "2,Erze und Werkzeuge",
   "3,Hammer",
   "3,Kiessieb / Gravel Sieve",
@@ -339,6 +341,18 @@ techage.manual_DE.aText = {
   "\n"..
   "\n"..
   "\n",
+  "Mit der Wassermühle können Weizen und andere Getreide zu Mehl gemahlen und dann im Ofen zu Brot gebacken werden. Die Mühle wird mit\n"..
+  "Wasserkraft angetrieben. Dazu muss der Mühlbach über ein Kanal zum Wasserrad geführt werden. Für den Mühlbach muss oberhalb des Mühlerades\n"..
+  "ein Teich angelegt werden. Die Abbilding rechts (auf \"Plan\" klicken) zeigt den Aufbau.\n"..
+  "\n"..
+  "\n"..
+  "\n",
+  "Mit der Wassermühle können Weizen und andere Getreide zu Mehl gemahlen und dann im Ofen zu Brot gebacken werden. Die Mühle wird mit\n"..
+  "Wasserkraft angetrieben. Dazu muss der Mühlbach über ein Kanal zum Wasserrad geführt werden. Für den Mühlbach muss oberhalb des Mühlerades\n"..
+  "ein Teich angelegt werden. Die Abbilding rechts (auf \"Plan\" klicken) zeigt den Aufbau.\n"..
+  "\n"..
+  "\n"..
+  "\n",
   "TA1 hat seine eigenen Werkzeuge wie Hammer und Kiessieb\\, aber auch der Minecart Hopper kann genutzt werden.\n"..
   "\n"..
   "\n"..
@@ -1723,6 +1737,8 @@ techage.manual_DE.aItemName = {
   "techage_ta1",
   "",
   "",
+  "",
+  "",
   "ta1_gravelsieve",
   "hammer",
   "ta1_gravelsieve",
@@ -1930,6 +1946,8 @@ techage.manual_DE.aPlanTable = {
   "",
   "coalpile",
   "coalburner",
+  "watermill1",
+  "watermill2",
   "",
   "",
   "",

techage/doc/plans.lua

@@ -81,6 +81,64 @@ techage.ConstructionPlans["hoppersieve"] = {
 	{false, false, HOPPR, CHEST, false},
 }
 
+--
+-- TA1: Watermill
+--
+local WATR1 = {"default_water.png" , "techage:water_flowing"}
+local WATR3 = {"techage_water_flowing.png" , "techage:water_flowing"}
+local WMILL = {"default_wood.png" , "techage:ta1_board1_apple"}
+local SLUC1 = {"techage_sluice2_inv.png" , "techage:ta1_sluice_closed"}
+local SLUC2 = {"techage_sluice1_inv.png" , "techage:ta1_sluice_handle_closed"}
+local MIL11 = {"techage_watermill1_inv.png" , "techage:ta1_watermill"}
+local MIL12 = {"techage_watermill1_inv.png^[transformR90" , "techage:ta1_watermill"}
+local MIL13 = {"techage_watermill1_inv.png^[transformR180" , "techage:ta1_watermill"}
+local MIL14 = {"techage_watermill1_inv.png^[transformR270" , "techage:ta1_watermill"}
+local MIL21 = {"techage_watermill2_inv.png" , "techage:ta1_watermill"}
+local MIL22 = {"techage_watermill2_inv.png^[transformR90" , "techage:ta1_watermill"}
+local MIL23 = {"techage_watermill2_inv.png^[transformR180" , "techage:ta1_watermill"}
+local MIL24 = {"techage_watermill2_inv.png^[transformR270" , "techage:ta1_watermill"}
+local MIL31 = {"techage_watermill3_inv.png" , "techage:ta1_watermill"}
+local MIL32 = {"techage_watermill3_inv.png^[transformR90" , "techage:ta1_watermill"}
+local MIL33 = {"techage_watermill3_inv.png^[transformR180" , "techage:ta1_watermill"}
+local MIL34 = {"techage_watermill3_inv.png^[transformR270" , "techage:ta1_watermill"}
+local MIL40 = {"techage_watermill4_inv.png" , "techage:ta1_watermill"}
+local BEARG = {"default_stone_brick.png^techage_axle_bearing_front.png", "techage:ta1_axle_bearing2"}
+local BRICK = {"default_stone_brick.png", "default:stonebrick"}
+
+
+techage.ConstructionPlans["watermill1"] = {
+	{false, false, false, false, false, false, false, false, false, false, false},
+	{false, SLUC2, false, false, false, false, false, false, false, false, false},
+	{WATR1, SLUC1, WMILL, WMILL, WMILL, WMILL, WMILL, WATR3, false, false, false},
+	{WATR1, DDIRT, false, false, MIL31, MIL21, MIL11, MIL21, MIL34, false, false},
+	{WATR1, DDIRT, false, false, MIL22, MIL40, MIL40, MIL40, MIL24, false, false},
+	{DDIRT, DDIRT, DDIRT, false, MIL12, MIL40, BEARG, MIL40, MIL14, false, false},
+	{DDIRT, DDIRT, DDIRT, false, MIL22, MIL40, BRICK, MIL40, MIL24, false, false},
+	{DDIRT, DDIRT, DDIRT, DDIRT, MIL32, MIL23, BRICK, MIL23, MIL33, false, false},
+	{DDIRT, DDIRT, DDIRT, DDIRT, DDIRT, DDIRT, DDIRT, WATR1, WATR1, WATR1, WATR1},
+}
+
+
+local MILLF = {"default_wood.png" , "techage:ta1_watermill"}
+local AXLE1 = {"techage_axle_bearing.png", "techage:ta1_axle"}
+local MILLG = {"techage_wood50.png^techage_axle_bearing.png", "techage:ta1_mill_gear"}
+local MILL_ = {"techage_mill_side.png", "techage:ta1_mill"}
+local MILLB = {"default_stone_brick.png", "techage:ta1_mill_base"}
+local FURNE = {"default_furnace_front.png", "default:furnace"}
+local HOPER = {"techage_hopper.png", "minecart:hopper"}
+
+techage.ConstructionPlans["watermill2"] = {
+	{false, false, false, false, false, false, false, false, false, false, false, false},
+	{false, false, false, false, false, false, false, false, false, false, false, false},
+	{false, false, false, false, false, false, false, false, false, false, false, false},
+	{false, false, false, false, false, false, false, false, MILLF, false, false, false},
+	{false, false, false, false, false, false, false, false, MILLF, false, false, false},
+	{false, false, false, false, false, MILLG, AXLE1, BEARG, MILLF, BEARG, false, false},
+	{false, false, false, false, false, MILL_, false, BRICK, MILLF, BRICK, false, false},
+	{false, CHEST, HOPER, FURNE, HOPER, MILLB, false, BRICK, MILLF, BRICK, false, false},
+	{DDIRT, DDIRT, DDIRT, DDIRT, DDIRT, DDIRT, DDIRT, DDIRT, WATR1, DDIRT, DDIRT, DDIRT},
+}
+
 --
 -- Steam Engine
 --

techage/init.lua

@@ -133,8 +133,17 @@ dofile(MP.."/iron_age/meltingpot.lua")
 if techage.modified_recipes_enabled then
 	dofile(MP.."/iron_age/tools.lua")
 end
+
+-- TA1 Watermill
+dofile(MP.."/ta1_watermill/ta1_axle.lua")
+dofile(MP.."/ta1_watermill/watermill.lua")
+dofile(MP.."/ta1_watermill/water.lua")
+dofile(MP.."/ta1_watermill/sluice.lua")
+dofile(MP.."/ta1_watermill/millboard.lua")
+dofile(MP.."/ta1_watermill/mill.lua")
+
 dofile(MP.."/iron_age/recipes.lua")
-if minetest.global_exists("wielded_light") then
+if minetest.global_exists("wielded_light") or minetest.global_exists("illumination") then
 	dofile(MP.."/iron_age/meridium.lua")
 end
 

techage/iron_age/hopper.lua

@@ -76,3 +76,17 @@ minecart.register_inventory(
 		},
 	}
 )
+
+minecart.register_inventory(
+	{
+		"techage:ta1_mill_base",
+	},
+	{
+		put = {
+			listname = "src",
+		},
+		take = {
+			listname = "dst",
+		},
+	}
+)

techage/iron_age/recipes.lua

@@ -119,7 +119,7 @@ local function register_liquid(source, flowing, itemname, inventory_image, name,
 
 				-------------------------------- Start Modification
 --				minetest.set_node(lpos, {name = source})
-				if source == "default:lava_source" and lpos.y > 0 then
+				if source == "default:lava_source" and lpos.y > 0 and not minetest.is_singleplayer() then
 				   minetest.chat_send_player(user:get_player_name(), S("[Bucket] Lava can only be placed below sea level!"))
 				   return
 				else

techage/lamps/growlight.lua

@@ -135,6 +135,8 @@ techage.register_lamp("techage:growlight", {
 			{-8/16,  -8/16, -8/16, 8/16,  -13/32,  8/16},
 		},
 	},
+	on_timer = node_timer_off,
+	on_switch_lamp = on_switch_lamp,
 	high_power = true,
 },{
 	description = S("TA4 LED Grow Light"),
@@ -156,6 +158,7 @@ techage.register_lamp("techage:growlight", {
 		},
 	},
 	on_timer = node_timer_on,
+	on_switch_lamp = on_switch_lamp,
 	high_power = true,
 })
 

techage/locale/techage.de.tr

@@ -109,6 +109,7 @@ TA3 Booster=TA3 Gebläse
 
 ### button.lua ###
 
+Access:=Zugriff:
 TA3 Button/Switch=TA3 Taster/Schalter
 TA4 Button/Switch=TA4 Schalter/Taster
 
@@ -446,6 +447,8 @@ TA4 Gravel Sieve=TA4 Kiessieb
 
 Grinder=Mühle
 Grinding=Mahlen
+Milling=Mahlen
+TA1 Mill Base=Mühlenunterteil
 
 ### growlight.lua ###
 
@@ -642,6 +645,24 @@ Meridium Sword=Meridium Schwert
 
 TA3 Mesecons Converter=TA3 Mesecons Konverter
 
+### mill.lua ###
+
+TA1 Mill=TA1 Mühle
+TA1 Mill Gear=TA1 Mühlengetriebe
+
+### millboard.lua ###
+
+TA1 Acacia Millrace Board=TA1 Akazie Mühlbachbrett
+TA1 Acacia Wood Board=TA1 Akazienholzbrett
+TA1 Apple Millrace Board=TA1 Apfel Mühlbachbrett
+TA1 Apple Wood Board=TA1 Apfelholzbrett
+TA1 Aspen Millrace Board=TA1 Espe Mühlbachbrett
+TA1 Aspen Wood Board=TA1 Espenholzbrett
+TA1 Jungle Millrace Board=TA1 Dschungel Mühlbachbrett
+TA1 Jungle Wood Board=TA1 Dschungelholzbrett
+TA1 Pine Millrace Board=TA1 Kiefer Mühlbachbrett
+TA1 Pine Wood Board=TA1 Kiefernholzbrett
+
 ### minicell.lua ###
 
 TA4 Streetlamp Solar Cell=TA4 Straßenlampen-Solarzelle
@@ -877,6 +898,12 @@ TA4 Silo=Silo
 
 TA Lamp=TA Lampe
 
+### sluice.lua ###
+
+TA1 Sluice Gate=TA1 Schleusenschieber
+TA1 Sluice Handle=TA1 Schleusengriff
+Your pond is too small!=ein Teich ist zu klein!
+
 ### solarcell.lua ###
 
 TA4 Solar Carrier Module=TA4 Solar Trägermodul
@@ -925,6 +952,11 @@ Cancel=Abbruch
 Note: You can't change any values while the block is running!=Hinweis: Während der Block läuft, kann kein Wert geändert werden!
 Refresh=Aktualisieren
 
+### ta1_axle.lua ###
+
+TA1 Axle=TA1 Achse
+TA1 Axle Bearing=TA1 Achsenlager
+
 ### ta2_weight_chest.lua ###
 
 TA2 Weight Chest=TA2 Gewichtekiste
@@ -1067,13 +1099,23 @@ Usmium Powder=Usmium Pulver
 TA Valve=TA Ventil
 TA3 Valve=TA3 Ventil
 
+### water.lua ###
+
+Flowing Water=Fließendes Wasser
+Water Source=Wasserquelle
+
 ### waterinlet.lua ###
 
 Error: No natural water!=Fehler: Kein natürliches Wasser!
 Error: No water available!=Fehler: Kein Wasser verfügbar!
 Error: Not on sea level!=Fehler: Nicht auf Meereshöhe!
+Operational=Betriebsbereit
 TA4 Water Inlet=TA4 Wasssereinlass
 
+### watermill.lua ###
+
+TA1 Watermill=TA1 Wasssermühle
+
 ### waterpump.lua ###
 
 TA4 Water Pump=Wasserpumpe
@@ -1090,4 +1132,3 @@ This is not the surface of the ocean!=Das ist nicht die Meeresoberfläche!
 [TA4 Wind Turbine]=[TA4 Windkraftanlage]
 biome and no ocean!=Biom und keine Meer (ocean)!
 is a suitable place for a wind turbine!=ist ein geeigneter Ort für eine Windkraftanlage!
-

techage/locale/template.txt

@@ -109,6 +109,7 @@ TA3 Booster=
 
 ### button.lua ###
 
+Access:=
 TA3 Button/Switch=
 TA4 Button/Switch=
 
@@ -446,6 +447,8 @@ TA4 Gravel Sieve=
 
 Grinder=
 Grinding=
+Milling=
+TA1 Mill Base=
 
 ### growlight.lua ###
 
@@ -642,6 +645,24 @@ Meridium Sword=
 
 TA3 Mesecons Converter=
 
+### mill.lua ###
+
+TA1 Mill=
+TA1 Mill Gear=
+
+### millboard.lua ###
+
+TA1 Acacia Millrace Board=
+TA1 Acacia Wood Board=
+TA1 Apple Millrace Board=
+TA1 Apple Wood Board=
+TA1 Aspen Millrace Board=
+TA1 Aspen Wood Board=
+TA1 Jungle Millrace Board=
+TA1 Jungle Wood Board=
+TA1 Pine Millrace Board=
+TA1 Pine Wood Board=
+
 ### minicell.lua ###
 
 TA4 Streetlamp Solar Cell=
@@ -877,6 +898,12 @@ TA4 Silo=
 
 TA Lamp=
 
+### sluice.lua ###
+
+TA1 Sluice Gate=
+TA1 Sluice Handle=
+Your pond is too small!=
+
 ### solarcell.lua ###
 
 TA4 Solar Carrier Module=
@@ -925,6 +952,11 @@ Cancel=
 Note: You can't change any values while the block is running!=
 Refresh=
 
+### ta1_axle.lua ###
+
+TA1 Axle=
+TA1 Axle Bearing=
+
 ### ta2_weight_chest.lua ###
 
 TA2 Weight Chest=
@@ -1067,13 +1099,23 @@ Usmium Powder=
 TA Valve=
 TA3 Valve=
 
+### water.lua ###
+
+Flowing Water=
+Water Source=
+
 ### waterinlet.lua ###
 
 Error: No natural water!=
 Error: No water available!=
 Error: Not on sea level!=
+Operational=
 TA4 Water Inlet=
 
+### watermill.lua ###
+
+TA1 Watermill=
+
 ### waterpump.lua ###
 
 TA4 Water Pump=

techage/logic/button.lua

@@ -56,10 +56,12 @@ local function formspec(meta)
 	local numbers = meta:get_string("numbers") or ""
 	local idx = meta:get_int("cycle_idx") or 0
 	if idx == 0 then idx = 1 end
+	local access_idx = meta:get_string("public") == "true" and 3 or meta:get_string("protected") == "true" and 2 or 1
 	return "size[7.5,6]"..
 		"dropdown[0.2,0;3;type;switch,button 1s,button 2s,button 4s,button 8s,button 16s,button 32s;"..idx.."]".. 
 		"field[0.5,2;7,1;numbers;"..S("Insert destination node number(s)")..";"..numbers.."]" ..
-		"checkbox[1,3;public;public;false]"..
+		"label[0.2,3;"..S("Access:").."]"..
+		"dropdown[3,3;4;access;private,protected,public;"..access_idx.."]"..
 		"button_exit[2,4;3,1;exit;"..S("Save").."]"
 end
 
@@ -72,8 +74,17 @@ local function on_receive_fields(pos, formname, fields, player)
 		return
 	end
 	meta:set_string("numbers", fields.numbers)
-	if fields.public then
-		meta:set_string("public", fields.public)
+	if fields.access == "protected" then
+		meta:set_string("protected", "true")
+		meta:set_string("public", "")
+	end
+	if fields.access == "public" then
+		meta:set_string("public", "true")
+		meta:set_string("protected", "")
+	end
+	if fields.access == "private" then
+		meta:set_string("public", "")
+		meta:set_string("protected", "")
 	end
 	local cycle_time = nil
 	if fields.type == "switch" then
@@ -110,12 +121,20 @@ local function on_receive_fields(pos, formname, fields, player)
 	end
 end
 
+local function can_access(pos, player)
+	local meta = M(pos)
+	local public = meta:get_string("public") == "true"
+	local protected = meta:get_string("protected") == "true"
+	local owner = meta:get_string("owner")
+	local name = player:get_player_name()
+	return public or protected and not minetest.is_protected(pos, name) or owner == name
+end
+
 local function on_rightclick_on(pos, node, clicker)
 	local meta = M(pos)
 	local fixed = meta:get_string("fixed")
 	if fixed == "true" then
-		if meta:get_string("public") == "true" or 
-				clicker:get_player_name() == meta:get_string("owner") then
+		if can_access(pos, clicker) then
 			switch_on(pos)
 		end
 	end
@@ -126,8 +145,7 @@ local function on_rightclick_off(pos, node, clicker)
 	local numbers = meta:get_string("numbers")
 	local cycle_time = meta:get_int("cycle_time") or 0
 	if numbers ~= "" and numbers ~= nil and cycle_time == 0 then
-		if meta:get_string("public") == "true" or 
-				clicker:get_player_name() == meta:get_string("owner") then
+		if can_access(pos, clicker) then
 			switch_off(pos)
 		end
 	end

techage/logic/logic_block.lua

@@ -106,8 +106,12 @@ end
 
 local function get_inputs(pos)
 	local nvm = techage.get_nvm(pos)
+	local mem = techage.get_mem(pos)
 	-- old data is needed for formspec 'input' values
 	nvm.old_inp_tbl = table.copy(nvm.inp_tbl or {})
+	for _, num in ipairs(mem.outp_num or {}) do
+		nvm.old_inp_tbl[num] = nvm.outp_tbl[num] or "off"
+	end
 	return nvm.old_inp_tbl
 end
 		
@@ -148,11 +152,12 @@ local function data(nvm)
 	return table.concat(inp, ",  "), table.concat(outp, ",  ")
 end
 
-local function get_code(pos, nvm)
+local function get_code(pos, nvm, mem)
 	local meta = M(pos)
 	local tbl = {"local inputs = get_inputs(pos) or {}"}
 	local owner = M(pos):get_string("owner")
 	nvm.own_num = nvm.own_num or M(pos):get_string("node_number")
+	mem.outp_num = {}
 	
 	for i = 1,NUM_RULES do
 		local outp = meta:get_string("outp" .. i)
@@ -167,6 +172,7 @@ local function get_code(pos, nvm)
 				expr = string.gsub(expr, 'on', '"on"')
 				expr = string.gsub(expr, 'off', '"off"')
 				tbl[#tbl + 1]  = "if "..expr.." then send(pos, '"..outp.."', '"..val.."') end"
+				table.insert(mem.outp_num, outp)
 			else
 				nvm.error = err
 				return
@@ -190,7 +196,7 @@ end
 local function execute(pos)
 	local nvm = techage.get_nvm(pos)
 	local mem = techage.get_mem(pos)
-	mem.code = mem.code or get_code(pos, nvm)
+	mem.code = mem.code or get_code(pos, nvm, mem)
 	if mem.code then
 		local res, _ = pcall(mem.code)
 		if not res then
@@ -304,7 +310,7 @@ minetest.register_node("techage:ta3_logic2", {
 			local nvm = techage.get_nvm(pos)
 			local mem = techage.get_mem(pos)
 			mem.code = nil
-			get_code(pos, nvm)
+			get_code(pos, nvm, mem)
 			meta:set_string("formspec", formspec(pos, meta))
 		end
 	end,

techage/logic/sequencer.lua

@@ -268,6 +268,8 @@ techage.register_node({"techage:ta3_sequencer"}, {
 			else
 				nvm.endless = false
 			end
+		elseif topic == "pause" then
+			stop_the_sequencer(pos)
 		else
 			return "unsupported"
 		end

techage/logic/terminal.lua

@@ -156,6 +156,23 @@ local function command(pos, command, player)
 				return
 			end
 			
+			local cmnd, payload = command:match('^axle%s+([%w_]+)%s*(.*)$')
+			if cmnd then
+				if not minetest.check_player_privs(player, "server") then
+					output(pos, "server privs missing")
+					return
+				end
+				local resp = techage.transfer(
+					pos, 
+					"B",  -- outdir
+					cmnd,  -- topic
+					payload,  -- payload
+					techage.TA1Axle,  -- network
+					nil)  -- valid nodes
+				output(pos, dump(resp))
+				return
+			end
+			
 			if command ~= "" then
 				output(pos, CMNDS_TA3)
 			end

techage/manuals/manual_ta1_DE.md

@@ -53,6 +53,23 @@ Der Schmelztiegel hat ein eigenes Menü mit Rezepten und ein Inventar, wo du die
 [coalburner|plan]
 
 
+## Wassermühle
+
+Mit der Wassermühle können Weizen und andere Getreide zu Mehl gemahlen und dann im Ofen zu Brot gebacken werden. Die Mühle wird mit
+Wasserkraft angetrieben. Dazu muss der Mühlbach über ein Kanal zum Wasserrad geführt werden. Für den Mühlbach muss oberhalb des Mühlerades
+ein Teich angelegt werden. Die Abbilding rechts (auf "Plan" klicken) zeigt den Aufbau.
+
+[watermill1|plan]
+
+### TA1 Mühle
+
+Mit der Wassermühle können Weizen und andere Getreide zu Mehl gemahlen und dann im Ofen zu Brot gebacken werden. Die Mühle wird mit
+Wasserkraft angetrieben. Dazu muss der Mühlbach über ein Kanal zum Wasserrad geführt werden. Für den Mühlbach muss oberhalb des Mühlerades
+ein Teich angelegt werden. Die Abbilding rechts (auf "Plan" klicken) zeigt den Aufbau.
+
+[watermill2|plan]
+
+
 ## Erze und Werkzeuge
 
 TA1 hat seine eigenen Werkzeuge wie Hammer und Kiessieb, aber auch der Minecart Hopper kann genutzt werden.

techage/manuals/toc_DE.md

@@ -14,6 +14,8 @@
 - [TA1: Eisenzeitalter](./manual_ta1_DE.md#ta1:-eisenzeitalter)
     - [Köhler / Coal Pile](./manual_ta1_DE.md#köhler--coal-pile)
     - [Kohlebrenner / Coal Burner](./manual_ta1_DE.md#kohlebrenner--coal-burner)
+    - [Wassermühle](./manual_ta1_DE.md#wassermühle)
+        - [TA1 Mühle](./manual_ta1_DE.md#ta1-mühle)
     - [Erze und Werkzeuge](./manual_ta1_DE.md#erze-und-werkzeuge)
         - [Hammer](./manual_ta1_DE.md#hammer)
         - [Kiessieb / Gravel Sieve](./manual_ta1_DE.md#kiessieb--gravel-sieve)

techage/ta1_watermill/mill.lua

@@ -0,0 +1,178 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2021 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+
+	TA1 Mill
+
+]]--
+
+local M = minetest.get_meta
+local S = techage.S
+
+local function start_mill(pos)
+	local obj = minetest.add_entity(pos, "techage:ta1_mill_entity")
+	minetest.remove_node(pos)
+end
+
+local function stop_mill(pos, self)
+	minetest.swap_node(pos, {name = "techage:ta1_mill", param2 = 0})
+	minetest.get_node_timer(pos):start(2)
+	self.object:remove()
+end
+
+local function has_power(pos, y_offs)
+	local pos1 = {x = pos.x, y = pos.y + y_offs, z = pos.z}
+	local nvm = techage.get_nvm(pos1)
+	nvm.watermill_trigger = (nvm.watermill_trigger or 1) - 1
+	return nvm.watermill_trigger > 0
+end
+
+techage.ta1_mill_has_power = has_power
+
+minetest.register_node("techage:ta1_mill_gear", {
+	description = S("TA1 Mill Gear"),
+	tiles = {
+		"default_wood.png^techage_axle_bearing.png^[transformR90",
+		"default_wood.png^techage_axle_bearing.png",
+		},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-1/2, -1/2, -1/2,   1/2, -1/8,  1/2},
+			{-1/8, -1/8, -1/2,   1/8,  1/8,  1/2},
+		},
+	},
+	
+	after_place_node = function(pos, placer)
+		techage.TA1Axle:after_place_node(pos)		
+	end,
+
+	after_dig_node = function(pos, oldnode, oldmetadata, digger)
+		techage.TA1Axle:after_dig_node(pos)
+	end,
+	
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {cracky = 2, crumbly = 2, choppy = 2},
+})
+
+techage.register_node({"techage:ta1_mill_gear"}, {
+	on_transfer = function(pos, in_dir, topic, payload)
+		local nvm = techage.get_nvm(pos)
+		if topic == "trigger" then
+			nvm.watermill_trigger = 4
+			return true
+		end
+	end,
+})
+
+minetest.register_node("techage:ta1_mill", {
+	description = S("TA1 Mill"),
+	tiles = {
+		-- up, down, right, left, back, front
+			"techage_mill_side.png",
+			"techage_mill_side.png",
+			"techage_mill_side.png",
+			"techage_mill_side.png",
+			"techage_mill_front.png",
+			"techage_mill_front.png",
+		},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-1/8, -1/8, -1/8,   1/8,  4/8,  1/8},
+			{-3/8, -3/8, -4/8,  -1/8,  3/8,  4/8},
+			{-3/8, -4/8, -3/8,  -1/8,  4/8,  3/8},
+			{ 1/8, -3/8, -4/8,   3/8,  3/8,  4/8},
+			{ 1/8, -4/8, -3/8,   3/8,  4/8,  3/8},
+		},
+	},
+	
+	after_place_node = function(pos, placer)
+		minetest.get_node_timer(pos):start(2)
+	end,
+	
+	on_rightclick = function(pos, node, clicker)
+		start_mill(pos)
+	end,
+	
+	on_timer = function(pos, elapsed)
+		if has_power(pos, 1) then
+			start_mill(pos)
+		end
+		return true
+	end,
+	
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {cracky = 2, crumbly = 2, choppy = 2},
+})
+
+minetest.register_entity("techage:ta1_mill_entity", {
+	initial_properties = {
+		physical = true,
+		visual = "wielditem",
+		wield_item = "techage:ta1_mill",
+		visual_size = {x=0.67, y=0.67, z=0.67},
+		static_save = true,
+		automatic_rotate = -math.pi * 0.2,
+		pointable = false,
+	},
+	
+	on_step = function(self, dtime)
+		self.dtime = (self.dtime or 0) + dtime
+		
+		if self.dtime > 2 then
+			local pos = vector.round(self.object:get_pos())
+			if not has_power(pos, 1) then
+				stop_mill(pos, self)
+			end
+			self.dtime = 0
+			minetest.sound_play("techage_mill", {gain = 0.3, pos = pos,
+			max_hear_distance = 10}, true)
+		end
+	end,
+	
+	on_rightclick = function(self, clicker)
+		local pos = vector.round(self.object:get_pos())
+		stop_mill(pos, self)
+	end,
+})
+
+techage.register_node({"techage:ta1_mill"}, {
+	on_node_load = function(pos, node)
+		minetest.get_node_timer(pos):start(2)
+	end,
+})	
+
+minetest.register_craft({
+	output = "techage:ta1_mill_gear",
+	recipe = {
+		{"default:wood", "", "default:wood"},
+		{"techage:ta1_axle", "default:wood", "techage:ta1_axle"},
+		{"default:wood", "techage:ta1_axle", "default:wood"},
+	},
+})
+
+minetest.register_craft({
+	output = "techage:ta1_mill",
+	recipe = {
+		{"", "techage:iron_ingot", ""},
+		{"stairs:slab_stone", "techage:iron_ingot", "stairs:slab_stone"},
+		{"", "", ""},
+	},
+})

techage/ta1_watermill/millboard.lua

@@ -0,0 +1,91 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2021 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+
+	TA1 mill boards
+	
+]]--
+
+local M = minetest.get_meta
+local S = techage.S
+
+local function register_board1(output, description, tiles, input)
+	minetest.register_node(output, {
+		description = description,
+		tiles = tiles,
+		drawtype = "nodebox",
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-1/2, -4/8, -1/2, 1/2, -3/8, 1/2},
+			},
+		},
+		paramtype2 = "wallmounted",
+		paramtype = "light",
+		use_texture_alpha = techage.CLIP,
+		sunlight_propagates = true,
+		is_ground_content = false,
+		groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1},
+		sounds = default.node_sound_wood_defaults(), 
+	})
+
+	minetest.register_craft({
+		output = output .. " 3",
+		recipe = {
+			{"", "", input},
+			{"", "", input},
+			{"", "", input},
+		},
+	})
+end
+
+local function register_board2(output, description, tiles, input1, input2)
+	minetest.register_node(output, {
+		description = description,
+		tiles = tiles,
+		drawtype = "nodebox",
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-1/2,  3/8,  -1/2,   1/2,  4/8, 1/2},
+				{-1/2,  3/16, -2/16,  1/2,  6/16, 2/16},
+				{-1/2, -5/16, -1/16,  1/2, -3/16, 1/16},
+			},
+		},
+		
+		paramtype2 = "facedir",
+		paramtype = "light",
+		use_texture_alpha = techage.CLIP,
+		sunlight_propagates = true,
+		is_ground_content = false,
+		groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1},
+		sounds = default.node_sound_wood_defaults(), 
+	})
+
+	minetest.register_craft({
+		output = output,
+		recipe = {
+			{"", input1, ""},
+			{"", input2, ""},
+			{"", "", ""},
+		},
+	})
+end
+
+register_board1("techage:ta1_board1_apple",  S("TA1 Apple Wood Board"),  {"default_wood.png"},        "stairs:slab_wood")
+register_board1("techage:ta1_board1_jungle", S("TA1 Jungle Wood Board"), {"default_junglewood.png"},  "stairs:slab_junglewood")
+register_board1("techage:ta1_board1_pine",   S("TA1 Pine Wood Board"),   {"default_pine_wood.png"},   "stairs:slab_pine_wood")
+register_board1("techage:ta1_board1_acacia", S("TA1 Acacia Wood Board"), {"default_acacia_wood.png"}, "stairs:slab_acacia_wood")
+register_board1("techage:ta1_board1_aspen",  S("TA1 Aspen Wood Board"),  {"default_aspen_wood.png"},  "stairs:slab_aspen_wood")
+
+register_board2("techage:ta1_board2_apple",  S("TA1 Apple Millrace Board"),  {"default_wood.png"},        "techage:ta1_board1_apple", "default:fence_rail_wood")
+register_board2("techage:ta1_board2_jungle", S("TA1 Jungle Millrace Board"), {"default_junglewood.png"},  "techage:ta1_board1_jungle", "default:fence_rail_junglewood")
+register_board2("techage:ta1_board2_pine",   S("TA1 Pine Millrace Board"),   {"default_pine_wood.png"},   "techage:ta1_board1_pine", "default:fence_rail_pine_wood")
+register_board2("techage:ta1_board2_acacia", S("TA1 Acacia Millrace Board"), {"default_acacia_wood.png"}, "techage:ta1_board1_acacia", "default:fence_rail_acacia_wood")
+register_board2("techage:ta1_board2_aspen",  S("TA1 Aspen Millrace Board"),  {"default_aspen_wood.png"},  "techage:ta1_board1_aspen", "default:fence_rail_aspen_wood")

techage/ta1_watermill/sluice.lua

@@ -0,0 +1,227 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2021 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+
+	TA1 Sluice Gate
+	
+]]--
+
+local M = minetest.get_meta
+local S = techage.S
+
+local RADIUS = 8
+local DEPTH = 2
+local AMOUNT = RADIUS * RADIUS * 1.5
+
+local function check_position(pos, facedir)
+	local dir = minetest.facedir_to_dir(facedir)
+	local pos_ = vector.add(pos, dir) 
+	local node = minetest.get_node(pos_)
+	
+	if node.name ~= "default:water_source" then
+		return
+	end
+	
+	dir = vector.multiply(dir, RADIUS)
+	local center = vector.add(pos, dir) 
+	local pos1 = {x = center.x - RADIUS, y = center.y - DEPTH, z = center.z - RADIUS}
+	local pos2 = {x = center.x + RADIUS, y = center.y + 0, z = center.z + RADIUS}
+	local _, nodes = minetest.find_nodes_in_area(pos1, pos2, {"default:water_source"})
+	return (nodes["default:water_source"] and nodes["default:water_source"] > AMOUNT) or false
+end
+
+-- Function checks if a millpond is avaliable and 
+-- returns the pos for the new water block, and the type of block.
+local function has_water(pos, facedir, player)
+	local facedir2, res, dir, pos2
+	
+	-- check left side
+	facedir2 = (facedir + 3) % 4
+	res = check_position(pos, facedir2)
+	facedir2 = (facedir + 1) % 4
+	dir = minetest.facedir_to_dir(facedir2)
+	pos2 =  vector.add(pos, dir) 
+	
+	if res == nil then 
+		return pos2, "air"
+	elseif res == true then 
+		return pos2, "water"
+	else
+		minetest.chat_send_player(player:get_player_name(), S("Your pond is too small!"))
+		return pos2, "air"
+	end
+	
+	-- check right side
+	facedir2 = (facedir + 1) % 4
+	res = check_position(pos, facedir2)
+	facedir2 = (facedir + 3) % 4
+	dir = minetest.facedir_to_dir(facedir2)
+	pos2 =  vector.add(pos, dir) 
+	
+	if res == nil then 
+		return  pos2, "air"
+	elseif res == true then 
+		return pos2, "water"
+	else
+		minetest.chat_send_player(player:get_player_name(), S("Your pond is too small!"))
+		return pos2, "air"
+	end
+end
+
+local function on_rightclick(pos, node, clicker, itemstack, pointed_thing)
+	local pos2 = vector.add(pos, {x = 0, y = -1, z = 0})
+	local node2 = minetest.get_node(pos2)
+	local pos3, res = has_water(pos2, node2.param2, clicker)
+	local node3 = minetest.get_node(pos3)
+	
+	if node2.name == "techage:ta1_sluice_closed" then
+		minetest.swap_node(pos, {name = "techage:ta1_sluice_handle_open", param2 = node.param2})
+		minetest.swap_node(pos2, {name = "techage:ta1_sluice_open", param2 = node.param2})
+		if res == "water" then
+			if node3.name == "air" or node3.name == "techage:water_flowing" then
+				minetest.add_node(pos3, {name = "techage:water_source"})
+				minetest.get_node_timer(pos3):start(2)
+			end
+		else
+			minetest.add_node(pos3, {name = "air"})
+		end
+		minetest.sound_play("doors_door_open", {gain = 0.5, pos = pos,
+			max_hear_distance = 10}, true)
+	elseif node2.name == "techage:ta1_sluice_open" then
+		minetest.swap_node(pos, {name = "techage:ta1_sluice_handle_closed", param2 = node.param2})
+		minetest.swap_node(pos2, {name = "techage:ta1_sluice_closed", param2 = node.param2})
+		if res == "water" then
+			if node3.name == "techage:water_source" then
+				minetest.add_node(pos3, {name = "techage:water_flowing"})
+			end
+		else
+			if node3.name == "techage:water_flowing" then
+				minetest.add_node(pos3, {name = "air"})
+			end
+		end
+		minetest.sound_play("doors_door_close", {gain = 0.5, pos = pos,
+			max_hear_distance = 10}, true)
+	end
+end
+
+minetest.register_node("techage:ta1_sluice_closed", {
+	description = S("TA1 Sluice Gate"),
+	tiles = {
+		"default_wood.png^techage_junglewood_top.png",
+		"default_wood.png",
+		"default_wood.png^techage_junglewood.png",
+		"default_wood.png^techage_junglewood.png",
+		"default_wood.png",
+		"default_wood.png",
+	},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-8/16, -8/16,  5/16,  8/16,  8/16,  8/16},
+			{-8/16, -8/16, -8/16,  8/16,  8/16, -5/16},
+			{-8/16, -8/16, -8/16,  8/16, -5/16,  8/16},
+			{-1/16, -5/16, -7/16,  1/16,  8/16,  7/16},
+		},
+	},
+	
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1},
+	sounds = default.node_sound_wood_defaults(),
+})
+
+minetest.register_node("techage:ta1_sluice_open", {
+	description = S("TA1 Sluice Gate"),
+	tiles = {"default_wood.png"},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-8/16, -8/16,  5/16,  8/16,  8/16,  8/16},
+			{-8/16, -8/16, -8/16,  8/16,  8/16, -5/16},
+			{-8/16, -8/16, -8/16,  8/16, -5/16,  8/16},
+		},
+	},
+	
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1, not_in_creative_inventory = 1},
+	sounds = default.node_sound_wood_defaults(),
+	drop = "techage:sluice_closed",
+})
+
+minetest.register_node("techage:ta1_sluice_handle_closed", {
+	description = S("TA1 Sluice Handle"),
+	tiles = {"default_wood.png"},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-8/16, -8/16, -8/16,  8/16, 0/16,  8/16},
+			{-1/16,  0/16, -1/16,  1/16, 4/16,  1/16},
+			{-1/16,  2/16, -4/16,  1/16, 4/16,  4/16},
+		},
+	},
+	on_rightclick = on_rightclick,
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1},
+	sounds = default.node_sound_wood_defaults(),
+})
+
+minetest.register_node("techage:ta1_sluice_handle_open", {
+	description = S("TA1 Sluice Handle"),
+	tiles = {"default_wood.png"},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-8/16, -8/16, -8/16,  8/16,  0/16,  8/16},
+			{-1/16,  0/16, -1/16,  1/16, 14/16,  1/16},
+			{-1/16, 14/16, -4/16,  1/16, 16/16,  4/16},
+		},
+	},
+	on_rightclick = on_rightclick,
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1, not_in_creative_inventory = 1},
+	sounds = default.node_sound_wood_defaults(),
+	drop = "techage:sluice_handle_closed",
+})
+
+minetest.register_craft({
+	output = "techage:ta1_sluice_closed",
+	recipe = {
+		{"", "", ""},
+		{"techage:ta1_board1_apple", "techage:ta1_board1_jungle", "techage:ta1_board1_apple"},
+		{"", "techage:ta1_board1_apple", ""},
+	},
+})
+
+minetest.register_craft({
+	output = "techage:ta1_sluice_handle_closed",
+	recipe = {
+		{"default:stick", "default:stick", "default:stick"},
+		{"", "default:stick", ""},
+		{"", "stairs:slab_wood", ""},
+	},
+})

techage/ta1_watermill/ta1_axle.lua

@@ -0,0 +1,176 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019-2021 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+	
+	TA1 Axles for the Watermill
+
+]]--
+
+-- for lazy programmers
+local P = minetest.string_to_pos
+local M = minetest.get_meta
+local S = techage.S
+
+local Axle = tubelib2.Tube:new({
+	dirs_to_check = {1,2,3,4,5,6},
+	max_tube_length = 5,
+	show_infotext = false,
+	tube_type = "axle1",
+	primary_node_names = {"techage:ta1_axle"}, 
+	secondary_node_names = {"techage:ta1_mill_gear", "techage:ta1_axle_bearing1", "techage:ta1_axle_bearing2"},
+	after_place_tube = function(pos, param2, tube_type, num_tubes, state)
+		minetest.swap_node(pos, {name = "techage:ta1_axle", param2 = param2})
+	end,
+})
+
+Axle:set_valid_sides("techage:ta1_mill_gear", {"F", "B"})
+Axle:set_valid_sides("techage:ta1_axle_bearing1", {"F", "B"})
+Axle:set_valid_sides("techage:ta1_axle_bearing2", {"F", "B"})
+
+minetest.register_node("techage:ta1_axle", {
+	description = S("TA1 Axle"),
+	tiles = {
+		"techage_axle_bearing.png^[transformR90",
+		"techage_axle_bearing.png^[transformR90",
+		"techage_axle_bearing.png",
+		"techage_axle_bearing.png",
+		"techage_axle_bearing.png",
+		"techage_axle_bearing.png",
+	},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-1/8, -1/8, -4/8,  1/8, 1/8, 4/8},
+		},
+	},
+	
+	after_place_node = function(pos, placer, itemstack, pointed_thing)
+		if not Axle:after_place_tube(pos, placer, pointed_thing) then
+			minetest.remove_node(pos)
+			return true
+		end
+		return false
+	end,
+	
+	after_dig_node = function(pos, oldnode, oldmetadata, digger)
+		Axle:after_dig_tube(pos, oldnode, oldmetadata)
+	end,
+	
+	paramtype2 = "facedir", -- important!
+	on_rotate = screwdriver.disallow, -- important!
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {crumbly = 3, cracky = 3, snappy = 3},
+	sounds = default.node_sound_wood_defaults(),
+})
+
+-- Bearings are defined as secondary nodes which forward received 'on_transfer' commands
+minetest.register_node("techage:ta1_axle_bearing1", {
+	description = S("TA1 Axle Bearing"),
+	tiles = {
+		"default_stone_brick.png^techage_axle_bearing.png^[transformR90",
+		"default_stone_brick.png^techage_axle_bearing.png",
+	},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-1/2, -1/2, -1/2,   1/2, -1/8,  1/2},
+			{-1/8, -1/8, -1/2,   1/8,  1/8,  1/2},
+		},
+	},
+	
+	after_place_node = function(pos, placer)
+		Axle:after_place_node(pos)		
+	end,
+
+	after_dig_node = function(pos, oldnode, oldmetadata, digger)
+		Axle:after_dig_node(pos)
+	end,
+	
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {cracky = 2, crumbly = 2, choppy = 2},
+})
+
+minetest.register_node("techage:ta1_axle_bearing2", {
+	description = S("TA1 Axle Bearing"),
+	tiles = {
+		-- up, down, right, left, back, front
+		"default_stone_brick.png",
+		"default_stone_brick.png",
+		"default_stone_brick.png",
+		"default_stone_brick.png",
+		"default_stone_brick.png^techage_axle_bearing_front.png",
+		"default_stone_brick.png^techage_axle_bearing_front.png",
+	},
+	
+	after_place_node = function(pos, placer)
+		Axle:after_place_node(pos)		
+	end,
+
+	after_dig_node = function(pos, oldnode, oldmetadata, digger)
+		Axle:after_dig_node(pos)
+	end,
+	
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {cracky = 2, crumbly = 2, choppy = 2},
+})
+
+techage.register_node({"techage:ta1_axle_bearing1", "techage:ta1_axle_bearing2"}, {
+	on_transfer = function(pos, in_dir, topic, payload)
+		return techage.transfer(
+			pos, 
+			in_dir,  -- outdir
+			topic,
+			payload,
+			Axle,    -- network
+			nil)	 -- valid nodes
+	end,
+})
+
+
+minetest.register_craft({
+	output = "techage:ta1_axle",
+	recipe = {
+		{"", "", ""},
+		{"techage:iron_ingot", "dye:black", "techage:iron_ingot"},
+		{"", "", ""},
+	},
+})
+
+minetest.register_craft({
+	output = "techage:ta1_axle_bearing1",
+	recipe = {
+		{"", "", ""},
+		{"", "techage:ta1_axle", ""},
+		{"", "stairs:slab_stonebrick", ""},
+	},
+})
+
+minetest.register_craft({
+	output = "techage:ta1_axle_bearing2",
+	recipe = {
+		{"", "", ""},
+		{"", "techage:ta1_axle", ""},
+		{"", "default:stonebrick", ""},
+	},
+})
+
+techage.TA1Axle = Axle

techage/ta1_watermill/water.lua

@@ -0,0 +1,117 @@
+-- Based on and derived from minetest_game.default
+-- License: LGPL v2.1
+
+-- support for MT game translation.
+local S = default.get_translator
+
+minetest.register_node("techage:water_flowing", {
+	description = S("Flowing Water"),
+	drawtype = "flowingliquid",
+	waving = 0,
+	tiles = {"default_water.png"},
+	special_tiles = {
+		{
+			name = "default_water_flowing_animated.png",
+			backface_culling = false,
+			animation = {
+				type = "vertical_frames",
+				aspect_w = 16,
+				aspect_h = 16,
+				length = 0.5,
+			},
+		},
+		{
+			name = "default_water_flowing_animated.png",
+			backface_culling = true,
+			animation = {
+				type = "vertical_frames",
+				aspect_w = 16,
+				aspect_h = 16,
+				length = 0.5,
+			},
+		},
+	},
+	use_texture_alpha = "blend",
+	paramtype = "light",
+	paramtype2 = "flowingliquid",
+	walkable = false,
+	pointable = false,
+	diggable = false,
+	buildable_to = true,
+	is_ground_content = false,
+	drop = "",
+	drowning = 1,
+	liquidtype = "flowing",
+	liquid_alternative_flowing = "techage:water_flowing",
+	liquid_alternative_source = "techage:water_source",
+	liquid_viscosity = 1,
+	post_effect_color = {a = 103, r = 30, g = 60, b = 90},
+	groups = {water = 3, liquid = 3, cools_lava = 1, not_in_creative_inventory = 1},
+	sounds = default.node_sound_water_defaults(),
+})
+
+minetest.register_node("techage:water_source", {
+	description = S("Water Source"),
+	drawtype = "flowingliquid",
+	waving = 0,
+	tiles = {"default_water.png"},
+	special_tiles = {
+		{
+			name = "default_water_flowing_animated.png",
+			backface_culling = false,
+			animation = {
+				type = "vertical_frames",
+				aspect_w = 16,
+				aspect_h = 16,
+				length = 0.5,
+			},
+		},
+		{
+			name = "default_water_flowing_animated.png",
+			backface_culling = true,
+			animation = {
+				type = "vertical_frames",
+				aspect_w = 16,
+				aspect_h = 16,
+				length = 0.5,
+			},
+		},
+	},
+	
+	use_texture_alpha = "blend",
+	paramtype = "light",
+	paramtype2 = "flowingliquid",
+	walkable = false,
+	pointable = false,
+	diggable = false,
+	buildable_to = true,
+	is_ground_content = false,
+	drop = "",
+	drowning = 1,
+	liquidtype = "source",
+	liquid_alternative_flowing = "techage:water_flowing",
+	liquid_alternative_source = "techage:water_source",
+	liquid_viscosity = 1,
+	post_effect_color = {a = 103, r = 30, g = 60, b = 90},
+	groups = {water = 3, liquid = 3, cools_lava = 1, not_in_creative_inventory = 1},
+	sounds = default.node_sound_water_defaults(),
+})
+
+minetest.register_node("techage:water_stop", {
+	description = "Water Stop",
+	drawtype = "glasslike_framed_optional",
+	tiles = {"techage_invisible.png"},
+	inventory_image = 'techage_invisible_inv.png',
+	
+	use_texture_alpha = "blend",
+	paramtype = "light",
+	walkable = false,
+	pointable = false,
+	diggable = false,
+	buildable_to = true,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {cracky = 3, oddly_breakable_by_hand = 3},
+	sounds = default.node_sound_glass_defaults(),
+	drop = "",
+})

techage/ta1_watermill/watermill.lua

@@ -0,0 +1,300 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2021 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+
+	TA1 Watermill
+	
+]]--
+
+local M = minetest.get_meta
+local S = techage.S
+
+local function calc_dir(dir, facedir)
+	if facedir == 1 then
+		return {x = dir.z, y = dir.y, z = -dir.x}
+	elseif facedir == 2 then
+		return {x = -dir.x, y = dir.y, z = -dir.z}
+	elseif facedir == 3 then
+		return {x = -dir.z, y = dir.y, z = dir.x}
+	end
+	return {x = dir.x, y = dir.y, z = dir.z}
+end	
+	
+local function add_node(pos, dir, facedir, node_name)
+	local pos2 = vector.add(pos, calc_dir(dir, facedir))
+	local node = minetest.get_node(pos2)
+	if techage.is_air_like(node.name) then
+		minetest.swap_node(pos2, {name = node_name})
+	end
+end
+
+local function remove_node(pos, dir, facedir, node_name)
+	local pos2 = vector.add(pos, calc_dir(dir, facedir))
+	local node = minetest.get_node(pos2)
+	if node.name == node_name then
+		minetest.swap_node(pos2, {name = "air"})
+	end
+end
+
+local function water_flowing(pos, facedir, tRes)
+	facedir = ((facedir or 0) + 1) % 4
+	local dir =  minetest.facedir_to_dir(facedir)
+	
+	local pos2 = vector.add(pos, dir)
+	pos2.y = pos2.y + 1
+	local node = minetest.get_node(pos2)
+	if node.name == "techage:water_flowing" then
+		tRes.backward = false
+		return true
+	end
+	
+	pos2 = vector.subtract(pos, dir)
+	pos2.y = pos2.y + 1
+	node = minetest.get_node(pos2)
+	if node.name == "techage:water_flowing" then
+		tRes.backward = true
+		return true
+	end
+end
+
+local function enough_space(pos, facedir)
+	local pos1 = vector.add(pos, calc_dir({x =-1, y =-1, z = 0}, facedir))
+	local pos2 = vector.add(pos, calc_dir({x = 1, y = 1, z = 0}, facedir))
+	local _, nodes = minetest.find_nodes_in_area(pos1, pos2, {"air"})
+	return nodes["air"] and nodes["air"] == 8 
+end
+
+local function remove_nodes(pos, facedir)
+	remove_node(pos, {x = 0, y = 1, z = 0}, facedir, "techage:water_stop")
+	remove_node(pos, {x =-1, y = 0, z = 0}, facedir, "techage:water_stop")
+	remove_node(pos, {x = 1, y = 0, z = 0}, facedir, "techage:water_stop")
+	remove_node(pos, {x =-1, y = 1, z =-1}, facedir, "techage:water_stop")
+	remove_node(pos, {x = 1, y = 1, z =-1}, facedir, "techage:water_stop")
+	remove_node(pos, {x =-1, y = 1, z = 1}, facedir, "techage:water_stop")
+	remove_node(pos, {x = 1, y = 1, z = 1}, facedir, "techage:water_stop")
+end
+
+local function start_wheel(pos, facedir, backward)
+	local obj = minetest.add_entity(pos, "techage:ta1_watermill_entity")
+	local dir =  minetest.facedir_to_dir(facedir)
+	local yaw = minetest.dir_to_yaw(dir)
+	if backward then
+		obj:set_rotation({x=-math.pi/2, y=yaw, z=0})
+	else
+		obj:set_rotation({x=math.pi/2, y=yaw, z=0})
+	end
+	local self = obj:get_luaentity()
+	self.facedir = facedir
+	
+	add_node(pos, {x = 0, y = 1, z = 0}, facedir, "techage:water_stop")
+	add_node(pos, {x =-1, y = 0, z = 0}, facedir, "techage:water_stop")
+	add_node(pos, {x = 1, y = 0, z = 0}, facedir, "techage:water_stop")
+	add_node(pos, {x =-1, y = 1, z =-1}, facedir, "techage:water_stop")
+	add_node(pos, {x = 1, y = 1, z =-1}, facedir, "techage:water_stop")
+	add_node(pos, {x =-1, y = 1, z = 1}, facedir, "techage:water_stop")
+	add_node(pos, {x = 1, y = 1, z = 1}, facedir, "techage:water_stop")
+	minetest.remove_node(pos)
+end
+
+local function stop_wheel(pos, self)
+	self.facedir = self.facedir or 0
+	if self.facedir == 0 or self.facedir == 2 then
+		minetest.swap_node(pos, {name = "techage:ta1_watermill", param2 = 4})
+		M(pos):set_int("facedir", self.facedir)
+		minetest.get_node_timer(pos):start(2)
+	elseif self.facedir == 1 or self.facedir == 3 then
+		minetest.swap_node(pos, {name = "techage:ta1_watermill", param2 = 13})
+		M(pos):set_int("facedir", self.facedir)
+		minetest.get_node_timer(pos):start(2)
+	end
+	
+	remove_nodes(pos, self.facedir)
+	self.object:remove()
+end
+
+local function trigger_consumer(pos, facedir)
+	local outdir = facedir + 1
+	local resp = techage.transfer(
+		pos, 
+		outdir,          -- outdir
+		"trigger",       -- topic
+		nil,             -- payload
+		techage.TA1Axle, -- network
+		nil)             -- valid nodes
+	if not resp then
+		outdir = tubelib2.Turn180Deg[outdir]
+		resp = techage.transfer(
+			pos, 
+			outdir,          -- outdir
+			"trigger",       -- topic
+			nil,             -- payload
+			techage.TA1Axle, -- network
+			nil)             -- valid nodes
+	end
+end
+
+minetest.register_node("techage:ta1_watermill", {
+	description = S("TA1 Watermill"),
+	tiles = {
+		-- up, down, right, left, back, front
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+		},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-1/2, -1/2, -1/2,   1/2, 1/2,  1/2},
+			
+			{-4.5/2, -1/2,  0.8/2,   4.5/2, 1/2,  1.0/2},
+			{-4.5/2, -1/2, -1.0/2,   4.5/2, 1/2, -0.8/2},
+			{-3.8/2, -1/2,  2.1/2,   3.8/2, 1/2,  2.3/2},
+			{-3.8/2, -1/2, -2.3/2,   3.8/2, 1/2, -2.1/2},
+		                                    
+			{ 0.8/2, -1/2, -4.5/2,   1.0/2, 1/2,  4.5/2},
+			{-1.0/2, -1/2, -4.5/2,  -0.8/2, 1/2,  4.5/2},
+			{ 2.1/2, -1/2, -3.8/2,   2.3/2, 1/2,  3.8/2},
+			{-2.3/2, -1/2, -3.8/2,  -2.1/2, 1/2,  3.8/2},
+		},
+	},
+	on_rightclick = function(pos, node, clicker)
+		start_wheel(pos, M(pos):get_int("facedir"))
+	end,
+	
+	on_timer = function(pos, elapsed)
+		local tRes = {}
+		if water_flowing(pos, M(pos):get_int("facedir"), tRes) then
+			start_wheel(pos, M(pos):get_int("facedir"), tRes.backward)
+		end
+		return true
+	end,
+	
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {cracky = 2, crumbly = 2, choppy = 2, not_in_creative_inventory = 1},
+	node_placement_prediction = "",
+	drop = "techage:ta1_watermill_inv",
+})
+
+-- A smaller one for the inventory
+minetest.register_node("techage:ta1_watermill_inv", {
+	description = S("TA1 Watermill"),
+	--inventory_image = "techage_waterwheel_inv.png",
+	--wield_image = "techage_waterwheel_inv.png",
+	tiles = {
+		-- up, down, right, left, back, front
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+			"default_wood.png",
+		},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-1/4, -1/4, -1/4,   1/4, 1/4,  1/4},
+			
+			{-4.5/4,  0.8/4, -1/4,   4.5/4,  1.0/4, 1/4},
+			{-4.5/4, -1.0/4, -1/4,   4.5/4, -0.8/4, 1/4},
+			{-3.8/4,  2.1/4, -1/4,   3.8/4,  2.3/4, 1/4},
+			{-3.8/4, -2.3/4, -1/4,   3.8/4, -2.1/4, 1/4},
+		                                            
+			{ 0.8/4, -4.5/4, -1/4,   1.0/4,  4.5/4, 1/4},
+			{-1.0/4, -4.5/4, -1/4,  -0.8/4,  4.5/4, 1/4},
+			{ 2.1/4, -3.8/4, -1/4,   2.3/4,  3.8/4, 1/4},
+			{-2.3/4, -3.8/4, -1/4,  -2.1/4,  3.8/4, 1/4},
+		},
+	},
+	
+	after_place_node = function(pos, placer)
+		local node = minetest.get_node(pos)
+		M(pos):set_int("facedir", node.param2)
+		remove_nodes(pos, node.param2)
+		if (node.param2 == 0 or node.param2 == 2) and enough_space(pos, node.param2) then
+			minetest.swap_node(pos, {name = "techage:ta1_watermill", param2 = 4})
+			minetest.get_node_timer(pos):start(2)
+		elseif (node.param2 == 1 or node.param2 == 3)  and enough_space(pos, node.param2) then
+			minetest.swap_node(pos, {name = "techage:ta1_watermill", param2 = 13})
+			minetest.get_node_timer(pos):start(2)
+		else
+			minetest.remove_node(pos)
+			return true
+		end
+	end,
+	
+	paramtype2 = "facedir",
+	node_placement_prediction = "",
+	diggable = false,
+})
+
+techage.register_node({"techage:ta1_watermill"}, {
+	on_node_load = function(pos, node)
+		minetest.get_node_timer(pos):start(2)
+	end,
+})	
+
+
+minetest.register_entity("techage:ta1_watermill_entity", {
+	initial_properties = {
+		physical = true,
+		collisionbox = {-0.5, -1.5, -1.5, 0.5, 1.5, 1.5},
+		visual = "wielditem",
+		wield_item = "techage:ta1_watermill",
+		visual_size = {x=0.67, y=0.67, z=0.67},
+		static_save = true,
+		automatic_rotate = -math.pi * 0.2,
+		pointable = false,
+	},
+	
+	on_step = function(self, dtime)
+		self.dtime = (self.dtime or 0) + dtime
+		
+		if self.dtime > 2 then
+			self.dtime = 0
+			local pos = vector.round(self.object:get_pos())
+			if not water_flowing(pos, self.facedir, {}) then
+				stop_wheel(pos, self)
+			end
+			trigger_consumer(pos, self.facedir)
+			minetest.sound_play("techage_watermill", {gain = 0.3, pos = pos,
+			max_hear_distance = 10}, true)
+		end
+	end,
+	
+	on_rightclick = function(self, clicker)
+		local pos = vector.round(self.object:get_pos())
+		stop_wheel(pos, self)
+	end,
+
+	on_activate = function(self, staticdata)
+		self.facedir = tonumber(staticdata) or 0
+	end,
+	
+	get_staticdata = function(self)
+		return self.facedir
+	end,
+})
+
+minetest.register_craft({
+	output = "techage:ta1_watermill_inv",
+	recipe = {
+		{"techage:ta1_board1_apple", "techage:ta1_board1_apple", "techage:ta1_board1_apple"},
+		{"techage:ta1_board1_apple", "default:wood", "techage:ta1_board1_apple"},
+		{"techage:ta1_board1_apple", "techage:ta1_board1_apple", "techage:ta1_board1_apple"},
+	},
+})

techage/ta3_power/tiny_generator.lua

@@ -187,11 +187,24 @@ minetest.register_node("techage:tiny_generator", {
 	on_rotate = screwdriver.disallow,
 	is_ground_content = false,
 
-	after_place_node = function(pos)
+	after_place_node = function(pos, placer, itemstack)
 		local nvm = techage.get_nvm(pos)
 		local number = techage.add_node(pos, "techage:tiny_generator")
 		nvm.running = false
 		nvm.burn_cycles = 0
+		if itemstack then
+			local stack_meta = itemstack:get_meta()
+			if stack_meta then
+				local liquid_name = stack_meta:get_string("liquid_name")
+				local liquid_amount = stack_meta:get_int("liquid_amount")
+				if liquid_name ~= "" and fuel.burntime(liquid.name) and
+				   liquid_amount >= 0 and liquid_amount <= fuel.CAPACITY then
+					nvm.liquid = nvm.liquid or {}
+					nvm.liquid.name = liquid_name
+					nvm.liquid.amount = liquid_amount
+				end
+			end
+		end
 		State:node_init(pos, nvm, number)
 		M(pos):set_string("formspec", formspec(State, pos, nvm))
 		M(pos):set_int("outdir", networks.side_to_outdir(pos, "R"))
@@ -205,13 +218,25 @@ minetest.register_node("techage:tiny_generator", {
 		techage.del_mem(pos)
 	end,
 
+	preserve_metadata = function(pos, oldnode, oldmetadata, drops)
+		local nvm = techage.get_nvm(pos)
+		if nvm.liquid and nvm.liquid.name and nvm.liquid.amount > 0 then
+			-- generator tank is not empty
+			local meta = drops[1]:get_meta()
+			meta:set_string("liquid_name", nvm.liquid.name)
+			meta:set_int("liquid_amount", nvm.liquid.amount)
+			meta:set_string("description", S("TA3 Tiny Power Generator") .. " (fuel: " ..
+			                tostring(nvm.liquid and nvm.liquid.amount or 0) .. "/" ..
+					tostring(fuel.CAPACITY) .. ")")
+		end
+	end,
+
 	get_generator_data = get_generator_data,
 	ta3_formspec = techage.generator_settings("ta3", PWR_PERF), 
 	on_receive_fields = on_receive_fields,
 	on_rightclick = on_rightclick,
 	on_punch = fuel.on_punch,
 	on_timer = node_timer,
-	can_dig = fuel.can_dig,
 })
 
 minetest.register_node("techage:tiny_generator_on", {