Add [powerbanks] support (#27)

init.lua

@@ -44,6 +44,7 @@ local mods = {
 	"mobs",
 	"more_chests",
 	"pipeworks",
+	"powerbanks",
 	"protector",
 	"signs_lib",
 	"technic",

mod.conf

@@ -23,6 +23,7 @@ optional_depends = """
 	mobs,
 	more_chests,
 	pipeworks,
+	powerbanks,
 	protector,
 	signs_lib,
 	technic,

nodes/powerbanks.lua

@@ -0,0 +1,23 @@
+
+-- Register wrench support for the powerbanks mod
+
+for i = 1, 3 do
+	wrench.register_node("powerbanks:powerbank_mk" .. i .. "_node", {
+		lists = { "main" },
+		metas = {
+			charge = wrench.META_TYPE_INT,
+			formspec = wrench.META_TYPE_IGNORE,
+			infotext = wrench.META_TYPE_IGNORE,
+			owner = wrench.META_TYPE_STRING,
+		},
+		timer = true,
+		after_place = function(pos)
+			local timer = core.get_node_timer(pos)
+			if not timer:is_started() then
+				-- Just to re-create infotext and formspec.
+				timer:start(0)
+			end
+		end,
+	})
+end
+