Add ta2 gravity energy storage system

basic_machines/source.lua

@@ -25,7 +25,7 @@ local control = networks.control
 
 local STANDBY_TICKS = 4
 local CYCLE_TIME = 2
-local PWR_PERF = 100
+local PWR_PERF = 25
 
 local function formspec(self, pos, nvm)
 	return techage.generator_formspec(self, pos, nvm, S("Power Source"), nvm.provided, PWR_PERF)

init.lua

@@ -89,7 +89,6 @@ dofile(MP.."/basis/recipe_lib.lua")
 dofile(MP.."/basis/formspec_update.lua")
 dofile(MP.."/basis/windturbine_lib.lua")
 dofile(MP.."/basis/laser_lib.lua")
-dofile(MP.."/basis/rope_lib.lua")
 
 -- Main doc
 dofile(MP.."/doc/manual_DE.lua")
@@ -115,7 +114,6 @@ dofile(MP.."/power/powerswitchbox.lua")
 dofile(MP.."/power/powerswitch.lua")
 dofile(MP.."/power/protection.lua")
 dofile(MP.."/power/power_line.lua")
-dofile(MP.."/power/ta2_winch.lua")
 dofile(MP.."/power/ta4_cable.lua")
 dofile(MP.."/power/ta4_cable_wall_entry.lua")
 dofile(MP.."/power/laser.lua")
@@ -143,6 +141,11 @@ dofile(MP.."/steam_engine/boiler.lua")
 dofile(MP.."/steam_engine/cylinder.lua")
 dofile(MP.."/steam_engine/flywheel.lua")
 
+-- TA2 gravity-based energy storage
+dofile(MP.."/ta2_energy_storage/ta2_rope.lua")
+dofile(MP.."/ta2_energy_storage/ta2_winch.lua")
+dofile(MP.."/ta2_energy_storage/ta2_weight_chest.lua")
+
 -- Liquids I
 dofile(MP.."/liquids/liquid_pipe.lua")
 dofile(MP.."/liquids/valve.lua")

items/basalt.lua

@@ -61,14 +61,14 @@ minetest.register_node("techage:basalt_stone_block", {
 minetest.register_node("techage:basalt_gravel", {
 	description = S("Basalt Gravel"),
 	tiles = {"default_gravel.png^[brighten"},
-	groups = {crumbly = 2, falling_node = 1},
+	groups = {crumbly = 2, falling_node = 1, gravel = 1},
 	sounds = default.node_sound_gravel_defaults(),
 })
 
 minetest.register_node("techage:sieved_basalt_gravel", {
 	description = S("Sieved Basalt Gravel"),
 	tiles = {"default_gravel.png^[brighten"},
-	groups = {crumbly = 2, falling_node = 1, not_in_creative_inventory=1},
+	groups = {crumbly = 2, falling_node = 1, gravel = 1, not_in_creative_inventory=1},
 	sounds = default.node_sound_gravel_defaults(),
 })
 

items/registered_nodes.lua

@@ -37,3 +37,4 @@ minetest.register_on_mods_loaded(function()
 	end
 end)
 
+minetest.override_item("default:gravel", {groups = {crumbly = 2, gravel = 1, falling_node = 1}})

power/ta2_winch.lua

@@ -1,188 +0,0 @@
---[[
-
-	TechAge
-	=======
-
-	Copyright (C) 2019-2021 Joachim Stolberg
-
-	GPL v3
-	See LICENSE.txt for more information
-	
-	TA4 Laser beam emitter and receiver 
-	
-]]--
-
--- for lazy programmers
-local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
-local S2P = minetest.string_to_pos
-local M = minetest.get_meta
-local S = techage.S
-
-local STORAGE_CAPA = 1000
-
-local Axle = techage.Axle
-local power = networks.power
-
-minetest.register_node("techage:ta2_winch", {
-	description = S("TA2 Winch"),
-	tiles = {
-		-- up, down, right, left, back, front
-		"techage_filling_ta4.png^techage_frame_ta4_top.png",
-		"techage_filling_ta4.png^techage_frame_ta4.png",
-		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_laser.png",
-		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_laser.png",
-		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_laser_hole.png",
-		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_hole_electric.png",
-	},
-
-	after_place_node = function(pos, placer)
-		local nvm = techage.get_nvm(pos)
-		local outdir = networks.side_to_outdir(pos, "R")
-		M(pos):set_int("outdir", outdir)
-		Axle:after_place_node(pos, {outdir})
-		local pos1, pos2 = techage.renew_rope(pos, 10)
-		local pos3 = {x = pos1.x, y = (pos1.y + pos2.y) / 2, z = pos1.z}  -- mid-pos
-		minetest.add_entity(pos3, "techage:ta2_weight_chest_entity")
-		minetest.get_node_timer(pos):start(2)
-		power.start_storage_calc(pos, Axle, outdir)
-	end,
-
-	on_timer = function(pos, elapsed)
-		local nvm = techage.get_nvm(pos)
-		local mem = techage.get_mem(pos)
-		local outdir = M(pos):get_int("outdir")
-		
-		--power.start_storage_calc(pos, Axle, outdir)
-		
-		nvm.load = power.get_storage_load(pos, Axle, outdir, STORAGE_CAPA)
-		if nvm.load then
-			print("on_timer" , nvm.load)
-			local len = 11 - (nvm.load / STORAGE_CAPA * 10)
-			local y = pos.y - len
-			techage.renew_rope(pos, len)
-			if mem.obj then
-				mem.obj:remove()
-			end
-			mem.obj = minetest.add_entity({x = pos.x, y = y, z = pos.z}, "techage:ta2_weight_chest_entity")
-		end
-		--print("on_timer", nvm.load)
-		return true
-	end,
-	
-	after_dig_node = function(pos, oldnode, oldmetadata)
-		local outdir = tonumber(oldmetadata.fields.outdir or 0)
-		power.start_storage_calc(pos, Axle, outdir)
-		Axle:after_dig_node(pos, {outdir})
-		techage.del_mem(pos)
-	end,
-	
-	get_storage_data = function(pos, tlib2)
-		local nvm = techage.get_nvm(pos)
-		return {level = (nvm.load or 0) / STORAGE_CAPA, capa = STORAGE_CAPA}
-	end,
-	
-	paramtype2 = "facedir",
-	groups = {choppy=2, cracky=2, crumbly=2},
-	is_ground_content = false,
-	sounds = default.node_sound_wood_defaults(),
-})
-
-minetest.register_entity("techage:ta2_weight_chest_entity", {
-	initial_properties = {
-		physical = true,
-		collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
-		visual = "wielditem",
-		textures = {"techage:ta2_weight_chest"},
-		visual_size = {x=0.66, y=0.66, z=0.66},
-		static_save = false,
-	},
-	driver_allowed = true,
-})
-
-power.register_nodes({"techage:ta2_winch"}, Axle, "sto", {"R"})
-
-local function allow_metadata_inventory_put(pos, listname, index, stack, player)
-	if minetest.is_protected(pos, player:get_player_name()) then
-		return 0
-	end
-	return stack:get_count()
-end
-
-local function allow_metadata_inventory_take(pos, listname, index, stack, player)
-	if minetest.is_protected(pos, player:get_player_name()) then
-		return 0
-	end
-	return stack:get_count()
-end
-
-local function can_dig(pos, player)
-	if minetest.is_protected(pos, player:get_player_name()) then
-		return false
-	end
-	local inv = minetest.get_meta(pos):get_inventory()
-	return inv:is_empty("main")
-end
-
-local function after_dig_node(pos, oldnode, oldmetadata, digger)
-	techage.remove_node(pos, oldnode, oldmetadata)
-end
-
-local function formspec()
-	return "size[8,6.7]"..
-	default.gui_bg..
-	default.gui_bg_img..
-	default.gui_slots..
-	"list[context;main;1,0;6,2;]"..
-	"list[current_player;main;0,3;8,4;]"..
-	"listring[context;main]"..
-	"listring[current_player;main]"
-end
-
-minetest.register_node("techage:ta2_weight_chest", {
-	description = S("TA2 Weight Chest"),
-	tiles = {
-		-- up, down, right, left, back, front
-		"techage_filling_ta2.png^techage_frame_ta2.png^techage_weight_bottom.png",
-		"techage_filling_ta2.png^techage_frame_ta2.png^techage_weight_bottom.png",
-		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png^techage_weight_side.png",
-		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png^techage_weight_side.png",
-		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png^techage_weight_side.png",
-		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_front_ta3.png^techage_weight_side.png",
-	},
-
-	on_construct = function(pos)
-		local meta = minetest.get_meta(pos)
-		local inv = meta:get_inventory()
-		inv:set_size('main', 12)
-	end,
-	
-	after_place_node = function(pos, placer)
-		local meta = minetest.get_meta(pos)
-		meta:set_string("owner", placer:get_player_name())
-		meta:set_string("formspec", formspec())
-	end,
-
-	techage_set_numbers = function(pos, numbers, player_name)
-		return techage.logic.set_numbers(pos, numbers, player_name, S("TA2 Weight Chest"))
-	end,
-	
-	can_dig = can_dig,
-	after_dig_node = after_dig_node,
-	allow_metadata_inventory_put = allow_metadata_inventory_put,
-	allow_metadata_inventory_take = allow_metadata_inventory_take,
-
-	paramtype2 = "facedir",
-	groups = {choppy=2, cracky=2, crumbly=2},
-	is_ground_content = false,
-	sounds = default.node_sound_wood_defaults(),
-})
-
---minetest.register_craft({
---	output = "techage:ta4_laser_emitter",
---	recipe = {
---		{"techage:ta4_carbon_fiber", "dye:blue", "techage:ta4_carbon_fiber"},
---		{"techage:electric_cableS", "basic_materials:energy_crystal_simple", "techage:ta4_leds"},
---		{"default:steel_ingot", "techage:ta4_wlanchip", "default:steel_ingot"},
---	},
---})
-

ta2_energy_storage/ta2_rope.lua

@@ -8,16 +8,19 @@
 	GPL v3
 	See LICENSE.txt for more information
 
-	Rope basis functions
+	Rope for TA2 gravity-based energy storage
 
 ]]--
 
 local Entities = {}
 
 -- Return first pos after start pos and the destination pos
-local function get_positions(pos, length)
+local function get_positions(pos, length, force)
 	local pos1 = {x = pos.x, y = pos.y - 1, z = pos.z}  -- start pos
-	local pos2 = {x = pos.x, y = pos.y - length, z = pos.z}  -- end pos
+	local pos2 = {x = pos.x, y = pos.y - 1 - length, z = pos.z}  -- end pos
+	if force then
+		return pos1, pos2  -- force given length
+	end
 	local _, pos3 = minetest.line_of_sight(pos1, pos2)
 	return pos1, pos3 or pos2  -- new values
 end
@@ -36,15 +39,14 @@ local function add_rope(pos, pos1, pos2)
 	local key = del_rope(pos)
 
 	pos1.y = pos1.y + 0.5  -- from
-	pos2.y = pos2.y + 0.5  -- to
+	pos2.y = pos2.y - 0.5  -- to
 	local pos3 = {x = pos1.x, y = (pos1.y + pos2.y) / 2, z = pos1.z}  -- mid-pos
 	local length = math.abs(pos1.y - pos2.y)
 	
 	local rope = minetest.add_entity(pos3, "techage:ta2_rope")
 	if rope then
-		rope:set_properties({visual_size = {x = 0.05, y = length}, collisionbox = {x = 0.05, y = length}})
+		rope:set_properties({visual_size = {x = 0.06, y = length}, collisionbox = {x = 0.06, y = length}})
 	end
-	--print(pos1.y, pos2.y, pos3.y)
 	Entities[key] = rope
 end
 
@@ -60,11 +62,11 @@ minetest.register_entity("techage:ta2_rope", {
 			"techage_rope.png",
 		},
 		use_texture_alpha = false,
-		physical = false,
+		physical = true,
-		collide_with_objects = false,
+		collide_with_objects = true,
-		pointable = false,
+		pointable = true,
 		static_save = false,
-		visual_size = {x = 0.05, y = 10, z = 0.05},
+		visual_size = {x = 0.06, y = 10, z = 0.06},
 		shaded = true,
 	},
 })
@@ -72,13 +74,12 @@ minetest.register_entity("techage:ta2_rope", {
 -------------------------------------------------------------------------------
 -- API functions
 -------------------------------------------------------------------------------
-function techage.renew_rope(pos, length)
+function techage.renew_rope(pos, length, force)
-	local pos1, pos2 = get_positions(pos, length)
+	local pos1, pos2 = get_positions(pos, length, force)
 	if pos1 then
 		add_rope(pos, pos1, pos2)
 		return pos1, pos2
 	end
 end
 
--- techage.del_laser(pos)
 techage.del_rope = del_rope

ta2_energy_storage/ta2_weight_chest.lua

@@ -0,0 +1,138 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019-2021 Joachim Stolberg
+
+	GPL v3
+	See LICENSE.txt for more information
+	
+	Chest for TA2 gravity-based energy storage
+	
+]]--
+
+-- for lazy programmers
+local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
+local S2P = minetest.string_to_pos
+local M = minetest.get_meta
+local S = techage.S
+
+local function valid_weight_items(stack)
+	local name = stack:get_name()
+	local ndef = minetest.registered_nodes[name]
+	if ndef then
+		if minetest.get_item_group(name, "stone") > 0 then
+			return true
+		end
+		if minetest.get_item_group(name, "cobble") > 0 then
+			return true
+		end
+		if minetest.get_item_group(name, "gravel") > 0 then
+			return true
+		end
+		if minetest.get_item_group(name, "sand") > 0 then
+			return true
+		end
+	end
+end
+
+minetest.register_entity("techage:ta2_weight_chest_entity", {
+	initial_properties = {
+		physical = true,
+		pointable = false,
+		collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
+		visual = "wielditem",
+		textures = {"techage:ta2_weight_chest"},
+		visual_size = {x=0.66, y=0.66, z=0.66},
+		static_save = false,
+	},
+})
+
+local function allow_metadata_inventory_put(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	if not valid_weight_items(stack) then
+		return 0
+	end
+	return stack:get_count()
+end
+
+local function allow_metadata_inventory_take(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	return stack:get_count()
+end
+
+local function can_dig(pos, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return false
+	end
+	local inv = minetest.get_meta(pos):get_inventory()
+	return inv:is_empty("main")
+end
+
+local function after_dig_node(pos, oldnode, oldmetadata, digger)
+	techage.remove_node(pos, oldnode, oldmetadata)
+end
+
+local function formspec()
+	return "size[8,6.7]"..
+	default.gui_bg..
+	default.gui_bg_img..
+	default.gui_slots..
+	"list[context;main;1.5,0.2;5,2;]"..
+	"list[current_player;main;0,3;8,4;]"..
+	"listring[context;main]"..
+	"listring[current_player;main]"
+end
+
+minetest.register_node("techage:ta2_weight_chest", {
+	description = S("TA2 Weight Chest"),
+	tiles = {
+		-- up, down, right, left, back, front
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_weight_bottom.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_weight_bottom.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png^techage_weight_side.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png^techage_weight_side.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png^techage_weight_side.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png^techage_weight_side.png",
+	},
+
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		inv:set_size('main', 10)
+	end,
+	
+	after_place_node = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("formspec", formspec())
+	end,
+
+	techage_set_numbers = function(pos, numbers, player_name)
+		return techage.logic.set_numbers(pos, numbers, player_name, S("TA2 Weight Chest"))
+	end,
+	
+	can_dig = can_dig,
+	after_dig_node = after_dig_node,
+	allow_metadata_inventory_put = allow_metadata_inventory_put,
+	allow_metadata_inventory_take = allow_metadata_inventory_take,
+
+	paramtype2 = "facedir",
+	groups = {choppy=2, cracky=2, crumbly=2},
+	is_ground_content = false,
+	sounds = default.node_sound_wood_defaults(),
+})
+
+minetest.register_craft({
+	output = "techage:ta2_weight_chest",
+	recipe = {
+		{"", "", ""},
+		{"basic_materials:steel_strip", "techage:chest_ta2", "basic_materials:steel_strip"},
+		{"", "", ""},
+	},
+})
+

ta2_energy_storage/ta2_winch.lua

@@ -0,0 +1,181 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019-2021 Joachim Stolberg
+
+	GPL v3
+	See LICENSE.txt for more information
+	
+	Winch for TA2 gravity-based energy storage
+	
+]]--
+
+-- for lazy programmers
+local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
+local S2P = minetest.string_to_pos
+local M = minetest.get_meta
+local S = techage.S
+
+local MIN_LOAD = 99
+local MAX_ROPE_LEN = 10
+
+local Axle = techage.Axle
+local power = networks.power
+
+
+local function chest_pos(pos)
+	local pos1 = {x = pos.x, y = pos.y - 1, z = pos.z}  -- start pos
+	local pos2 = {x = pos.x, y = pos.y - 1 - MAX_ROPE_LEN, z = pos.z}  -- end pos
+	local _, pos3 = minetest.line_of_sight(pos1, pos2)
+	return pos3 or pos2
+end
+
+local function chest_load(nvm, pos)
+	local amount = 0
+	local inv = minetest.get_inventory({type = "node", pos = pos})
+	nvm.stored_items = {}
+	for i = 1, inv:get_size("main") do
+		local stack = inv:get_stack("main", i)
+		nvm.stored_items[i] = {name = stack:get_name(), count = stack:get_count()}
+		amount = amount + stack:get_count()
+	end
+	return amount
+end
+	
+local function chest_full(pos)
+	local nvm = techage.get_nvm(pos)
+	local pos1 = chest_pos(pos)
+	local node = minetest.get_node(pos1)
+	if node.name == "techage:ta2_weight_chest" then
+		return chest_load(nvm, pos1) >= MIN_LOAD
+	end
+end
+	
+-- Add chest node, remove chest entity instead
+local function add_chest(pos)
+	local mem = techage.get_mem(pos)
+	local nvm = techage.get_nvm(pos)
+	if mem.obj then
+		mem.obj:remove()
+		mem.obj = nil
+	end		
+	if nvm.capa and nvm.capa >= MIN_LOAD then 
+		local pos1 = {x = pos.x, y = pos.y - (nvm.length or 1) - 1, z = pos.z}
+		minetest.add_node(pos1, {name = "techage:ta2_weight_chest", param2 = 0})
+		local ndef = minetest.registered_nodes["techage:ta2_weight_chest"]
+		ndef.on_construct(pos1)
+		ndef.after_place_node(pos1)
+		local inv = minetest.get_inventory({type = "node", pos = pos1})
+		for i, item in ipairs(nvm.stored_items or {}) do
+			inv:set_stack("main", i, item)
+		end
+	end
+	nvm.capa = 0
+end	
+
+-- Remove chest node, add rope and chest entity instead
+local function remove_chest(pos)
+	local mem = techage.get_mem(pos)
+	local nvm = techage.get_nvm(pos)
+	local pos1 = chest_pos(pos)
+	local mass = chest_load(nvm, pos1)
+	if mass > 0 then
+		nvm.length = pos.y - pos1.y - 1
+		nvm.capa = mass * nvm.length / MAX_ROPE_LEN
+		minetest.remove_node(pos1)
+		mem.obj = minetest.add_entity(pos1, "techage:ta2_weight_chest_entity")
+		techage.renew_rope(pos, nvm.length)
+		return true
+	end
+end	
+
+minetest.register_node("techage:ta2_winch", {
+	description = S("TA2 Winch"),
+	tiles = {
+		-- up, down, right, left, back, front
+		"techage_filling_ta2.png^techage_appl_arrow2.png^techage_frame_ta2.png^[transformR270",
+		"techage_filling_ta2.png^techage_appl_arrow2.png^techage_frame_ta2.png^techage_appl_winch_hole.png^[transformR270",
+		"techage_filling_ta2.png^techage_axle_gearbox.png^techage_frame_ta2.png",
+		"techage_filling_ta2.png^techage_appl_winch.png^techage_frame_ta2.png",
+		"techage_filling_ta2.png^techage_appl_winch.png^techage_frame_ta2.png",
+		"techage_filling_ta2.png^techage_appl_winch.png^techage_frame_ta2.png",
+	},
+
+	after_place_node = function(pos, placer)
+		local nvm = techage.get_nvm(pos)
+		local outdir = networks.side_to_outdir(pos, "R")
+		M(pos):set_int("outdir", outdir)
+		Axle:after_place_node(pos, {outdir})
+		minetest.get_node_timer(pos):start(2)
+		techage.renew_rope(pos, MAX_ROPE_LEN - 1)
+	end,
+
+	on_timer = function(pos, elapsed)
+		local nvm = techage.get_nvm(pos)
+		local mem = techage.get_mem(pos)
+		local outdir = M(pos):get_int("outdir")
+		nvm.capa = nvm.capa or 1
+		nvm.load = nvm.load or 0
+		nvm.length = nvm.length or 1
+		
+		if not nvm.running and power.power_available(pos, Axle, outdir) and chest_full(pos) then
+			remove_chest(pos)
+			power.start_storage_calc(pos, Axle, outdir)
+			nvm.running = true
+		elseif nvm.running and nvm.load == 0 and not power.power_available(pos, Axle, outdir) then
+			add_chest(pos)
+			power.start_storage_calc(pos, Axle, outdir)
+			nvm.running = false
+		end
+		
+		if nvm.running then
+			nvm.load = power.get_storage_load(pos, Axle, outdir, nvm.capa)
+			if nvm.load then
+				local length = nvm.length * (1 - nvm.load/nvm.capa)
+				local y = pos.y - length - 1
+				techage.renew_rope(pos, length, true)
+				if mem.obj then
+					mem.obj:remove()
+				end
+				mem.obj = minetest.add_entity({x = pos.x, y = y, z = pos.z}, "techage:ta2_weight_chest_entity")
+			end
+		end
+		return true
+	end,
+	
+	after_dig_node = function(pos, oldnode, oldmetadata)
+		add_chest(pos)
+		local outdir = tonumber(oldmetadata.fields.outdir or 0)
+		power.start_storage_calc(pos, Axle, outdir)
+		Axle:after_dig_node(pos, {outdir})
+		techage.del_mem(pos)
+	end,
+	
+	get_storage_data = function(pos, tlib2)
+		local nvm = techage.get_nvm(pos)
+		nvm.load = nvm.load or 0
+		nvm.capa = nvm.capa or 1
+		if nvm.running then
+			return {level = nvm.load / nvm.capa, capa = nvm.capa}
+		end
+	end,
+	
+	paramtype2 = "facedir",
+	groups = {choppy=2, cracky=2, crumbly=2},
+	is_ground_content = false,
+	sounds = default.node_sound_wood_defaults(),
+})
+
+power.register_nodes({"techage:ta2_winch"}, Axle, "sto", {"R"})
+
+minetest.register_craft({
+	output = "techage:ta2_winch",
+	recipe = {
+		{"farming:string", "farming:string", "farming:string"},
+		{"farming:string", "techage:gearbox", "farming:string"},
+		{"farming:string", "farming:string", "farming:string"},
+	},
+})
+

textures/shrink.py

@@ -1,16 +0,0 @@
-import os, fnmatch
-
-
-print(">>> Convert")
-for filename in os.listdir("./"):
-    if fnmatch.fnmatch(filename, "*.png"):
-        print(filename)
-        os.system("pngquant --skip-if-larger --quality=80 --strip --output ./%s.new  ./%s" % (filename, filename))
-
-print("\n>>> Copy")
-for filename in os.listdir("./"):
-    if fnmatch.fnmatch(filename, "*.new"):
-        print(filename)
-        os.remove("./" + filename[:-4])
-        os.rename("./" + filename, "./" + filename[:-4])
-