mods that hopefully work for a TechAge-based pack

mods/techage_modpack/techage/iron_age/main.lua

@@ -0,0 +1,28 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+
+]]--
+
+function techage.ironage_swap_node(pos, name)
+	minetest.swap_node(pos, {name = name})
+	local node = minetest.registered_nodes[name]
+	if node.on_construct then
+		node.on_construct(pos)
+	end
+	if node.after_place_node then
+		node.after_place_node(pos)
+	end
+end
+
+function techage.ironage_swap_nodes(pos1, pos2, name1, name2)
+	for _,p in ipairs(minetest.find_nodes_in_area(pos1, pos2, name1)) do
+		techage.ironage_swap_node(p, name2)
+	end
+end