mods that hopefully work for a TechAge-based pack

mods/techage_modpack/techage/coal_power_station/boiler_top.lua

@@ -0,0 +1,156 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019-2025 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+
+	TA3 Coal Power Station Boiler Top
+
+]]--
+
+-- for lazy programmers
+local M = minetest.get_meta
+local S = techage.S
+
+local CYCLE_TIME = 4
+local WATER_CONSUMPTION = 0.1
+
+local Pipe = techage.SteamPipe
+local LiquidPipe = techage.LiquidPipe
+local liquid = networks.liquid
+local boiler = techage.boiler
+
+local function steaming(pos, nvm, temp)
+	if temp >= 80 then
+		local wc = WATER_CONSUMPTION * (nvm.power_ratio or 1)
+		nvm.water_level = math.max((nvm.water_level or 0) - wc, 0)
+	end
+end
+
+-- Liquid handling functions for pipe connection
+local function put_liquid(pos, indir, name, amount)
+	-- Only accept water
+	if name == "techage:water" or name == "default:river_water_source" then
+		local nvm = techage.get_nvm(pos)
+		nvm.num_water = nvm.num_water or 0
+		-- Calculate how many water units can be added (max 10)
+		local space = math.max(10 - nvm.num_water, 0)
+		local accepted = math.min(amount, space)
+		if accepted > 0 then
+			nvm.num_water = nvm.num_water + accepted
+			if techage.is_activeformspec(pos) then
+				M(pos):set_string("formspec", boiler.formspec(pos, nvm))
+			end
+		end
+		return amount - accepted -- return leftover
+	end
+	return amount -- reject other liquids
+end
+
+local function peek_liquid(pos, indir)
+	-- Boiler doesn't provide liquid output
+	return nil
+end
+
+local function take_liquid(pos, indir, name, amount)
+	-- Boiler doesn't provide liquid output
+	return 0
+end
+
+local function node_timer(pos, elapsed)
+	local nvm = techage.get_nvm(pos)
+	local temp = boiler.water_temperature(pos, nvm)
+	steaming(pos, nvm, temp)
+	if techage.is_activeformspec(pos) then
+		M(pos):set_string("formspec", boiler.formspec(pos, nvm))
+	end
+	return temp > 20
+end
+
+local function after_place_node(pos)
+	local node = minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z})
+	if node.name == "techage:coalboiler_base" then
+		local nvm = techage.get_nvm(pos)
+		M(pos):set_string("formspec", boiler.formspec(pos, nvm))
+		Pipe:after_place_node(pos)
+		LiquidPipe:after_place_node(pos)
+	end
+end
+
+local function after_dig_node(pos, oldnode)
+	Pipe:after_dig_node(pos)
+	LiquidPipe:after_dig_node(pos)
+	techage.del_mem(pos)
+end
+
+minetest.register_node("techage:coalboiler_top", {
+	description = S("TA3 Boiler Top"),
+	tiles = {"techage_coal_boiler_mesh_top.png"},
+	drawtype = "mesh",
+	mesh = "techage_cylinder_12.obj",
+	selection_box = {
+		type = "fixed",
+		fixed = {-13/32, -48/32, -13/32, 13/32, 16/32, 13/32},
+	},
+
+	can_dig = boiler.can_dig,
+	on_timer = node_timer,
+	on_rightclick = boiler.on_rightclick,
+	after_place_node = after_place_node,
+	after_dig_node = after_dig_node,
+	on_punch = boiler.on_punch,
+
+	paramtype = "light",
+	paramtype2 = "facedir",
+	groups = {cracky=1},
+	on_rotate = screwdriver.disallow,
+	is_ground_content = false,
+	sounds = default.node_sound_metal_defaults(),
+})
+
+Pipe:add_secondary_node_names({"techage:coalboiler_top"})
+Pipe:set_valid_sides("techage:coalboiler_top", {"F"})
+LiquidPipe:add_secondary_node_names({"techage:coalboiler_top"})
+
+-- Register liquid handling
+liquid.register_nodes({"techage:coalboiler_top"},
+	LiquidPipe, "tank", nil, {
+		capa = 10,
+		peek = peek_liquid,
+		put = put_liquid,
+		take = take_liquid,
+	}
+)
+
+
+techage.register_node({"techage:coalboiler_top"}, {
+	on_transfer = function(pos, in_dir, topic, payload)
+		if topic == "trigger" then
+			local nvm = techage.get_nvm(pos)
+			nvm.fire_trigger = true
+			if not minetest.get_node_timer(pos):is_started() then
+				minetest.get_node_timer(pos):start(CYCLE_TIME)
+			end
+			if (nvm.temperature or 20) > 80 then
+				nvm.power_ratio = techage.transfer(pos, "F", "trigger", nil, Pipe, {
+						"techage:turbine", "techage:turbine_on"}) or 0
+				return nvm.power_ratio
+			else
+				return 0
+			end
+		end
+	end,
+})
+
+minetest.register_craft({
+	output = "techage:coalboiler_top",
+	recipe = {
+		{"default:stone", "default:stone", "default:stone"},
+		{"techage:iron_ingot", "", "techage:iron_ingot"},
+		{"default:stone", "", "default:stone"},
+	},
+})