mods that hopefully work for a TechAge-based pack

mods/techage_modpack/techage/.test/sink.lua

@@ -0,0 +1,112 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019-2021 Joachim Stolberg
+
+	GPL v3
+	See LICENSE.txt for more information
+
+	Demo for a electrical power consuming node
+
+]]--
+
+-- for lazy programmers
+local P2S = minetest.pos_to_string
+local M = minetest.get_meta
+local S = techage.S
+
+local PWR_NEEDED = 5
+local CYCLE_TIME = 2
+
+local Cable = techage.ElectricCable
+--local Cable = techage.Axle
+local power = networks.power
+
+local function swap_node(pos, name)
+	local node = techage.get_node_lvm(pos)
+	if node.name == name then
+		return
+	end
+	node.name = name
+	minetest.swap_node(pos, node)
+end
+
+local function on_rightclick(pos, node, clicker)
+	local nvm = techage.get_nvm(pos)
+	if not nvm.running and power.power_available(pos, Cable) then
+		nvm.running = true
+		swap_node(pos, "techage:sink_on")
+		M(pos):set_string("infotext", "on")
+		minetest.get_node_timer(pos):start(CYCLE_TIME)
+	else
+		nvm.running = false
+		swap_node(pos, "techage:sink")
+		M(pos):set_string("infotext", "off")
+		minetest.get_node_timer(pos):stop()
+	end
+end
+
+local function after_place_node(pos)
+	local nvm = techage.get_nvm(pos)
+	M(pos):set_string("infotext", "off")
+	Cable:after_place_node(pos)
+end
+
+local function after_dig_node(pos, oldnode)
+	Cable:after_dig_node(pos)
+	techage.del_mem(pos)
+end
+
+minetest.register_node("techage:sink", {
+	description = "Sink",
+	tiles = {'techage_electric_button.png^[colorize:#000000:50'},
+
+	on_timer = function(pos, elapsed)
+		local consumed = power.consume_power(pos, Cable, nil, PWR_NEEDED)
+		if consumed == PWR_NEEDED then
+			swap_node(pos, "techage:sink_on")
+			M(pos):set_string("infotext", "on")
+		end
+		return true
+	end,
+	on_rightclick = on_rightclick,
+	after_place_node = after_place_node,
+	after_dig_node = after_dig_node,
+
+	paramtype = "light",
+	light_source = 0,
+	paramtype2 = "facedir",
+	groups = {choppy = 2, cracky = 2, crumbly = 2},
+	is_ground_content = false,
+	sounds = default.node_sound_wood_defaults(),
+})
+
+minetest.register_node("techage:sink_on", {
+	description = "Sink",
+	tiles = {'techage_electric_button.png'},
+
+	on_timer = function(pos, elapsed)
+		local consumed = power.consume_power(pos, Cable, nil, PWR_NEEDED)
+		if consumed < PWR_NEEDED then
+			swap_node(pos, "techage:sink")
+			M(pos):set_string("infotext", "off")
+		end
+		return true
+	end,
+	on_rightclick = on_rightclick,
+	after_place_node = after_place_node,
+	after_dig_node = after_dig_node,
+
+	paramtype = "light",
+	light_source = minetest.LIGHT_MAX,
+	paramtype2 = "facedir",
+	diggable = false,
+	drop = "",
+	groups = {not_in_creative_inventory = 1},
+	is_ground_content = false,
+	sounds = default.node_sound_wood_defaults(),
+})
+
+power.register_nodes({"techage:sink", "techage:sink_on"}, Cable, "con")