Add [currency] support (#25)

Co-authored-by: Buckaroo Banzai <39065740+BuckarooBanzay@users.noreply.github.com>

.luacheckrc

@@ -10,6 +10,7 @@ read_globals = {
 	"table.indexof",
 	"minetest",
 	"ItemStack",
+	"barter",
 	"beacon",
 	"christmas",
 	"digilines",

init.lua

@@ -30,6 +30,7 @@ local mods = {
 	"bones",
 	"christmas",
 	"connected_chests",
+	"currency",
 	"default",
 	"digibuilder",
 	"digilines",

mod.conf

@@ -8,6 +8,7 @@ optional_depends = """
 	biofuel,
 	bones,
 	connected_chests,
+	currency,
 	christmas,
 	default,
 	digtron,

nodes/currency.lua

@@ -0,0 +1,42 @@
+
+-- Register wrench support for the currency mod
+
+wrench.register_node("currency:barter", {
+	lists = { "pl1", "pl2" },
+	metas = {
+		clean = wrench.META_TYPE_INT,
+		formspec = wrench.META_TYPE_IGNORE,
+		infotext = wrench.META_TYPE_IGNORE,
+		pl1 = wrench.META_TYPE_STRING,
+		pl2 = wrench.META_TYPE_STRING,
+		pl1step = wrench.META_TYPE_INT,
+		pl2step = wrench.META_TYPE_INT,
+		timer = wrench.META_TYPE_INT,
+	},
+	timer = true,
+	after_place = function(pos, player, stack, pointed)
+		barter.chest.update_formspec(core.get_meta(pos))
+	end,
+})
+
+wrench.register_node("currency:safe", {
+	lists = { "main" },
+	metas = {
+		infotext = wrench.META_TYPE_STRING,
+		owner = wrench.META_TYPE_STRING,
+	},
+	owned = true,
+})
+
+-- Unkown what happens if a shop is wrenched while a user is using it.
+for _, name in ipairs({ "currency:shop", "currency:shop_empty" }) do
+	wrench.register_node(name, {
+		lists = { "customers_gave", "owner_gives", "owner_wants", "stock" },
+		metas = {
+			infotext = wrench.META_TYPE_STRING,
+			owner = wrench.META_TYPE_STRING,
+		},
+		owned = true,
+	})
+end
+