Convert the modpack into a standalone game for the Minetest engine

Integrated into the game is most of minetest_game as the stable base

mods/castle_storage/ironbound_chest.lua

@@ -0,0 +1,142 @@
+minetest.register_alias("castle:ironbound_chest",         "castle_storage:ironbound_chest")
+
+local S = minetest.get_translator(minetest.get_current_modname())
+
+local get_ironbound_chest_formspec = function(pos)
+	local spos = pos.x .. "," .. pos.y .. "," ..pos.z
+	local formspec =
+		"size[8,9]"..
+		default.gui_bg ..
+		default.gui_bg_img ..
+		default.gui_slots ..
+		"list[nodemeta:".. spos .. ";main;,0;8,4;]"..
+		"list[current_player;main;,5;8,4;]"..
+		"listring[]"
+	return formspec
+end
+
+local function has_ironbound_chest_privilege(meta, player)
+	local name = ""
+	if player then
+		if minetest.check_player_privs(player, "protection_bypass") then
+			return true
+		end
+		name = player:get_player_name()
+	end
+	if name ~= meta:get_string("owner") then
+		return false
+	end
+	return true
+end
+
+minetest.register_node("castle_storage:ironbound_chest",{
+	drawtype = "nodebox",
+	description = S("Ironbound Chest"),
+	tiles = {"castle_ironbound_chest_top.png",
+			"castle_ironbound_chest_top.png",
+			"castle_ironbound_chest_side.png",
+			"castle_ironbound_chest_side.png",
+			"castle_ironbound_chest_back.png",
+			"castle_ironbound_chest_front.png"},
+	paramtype = "light",
+	paramtype2 = "facedir",
+	groups = {cracky=2},
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, -0.5, -0.3125, 0.5, -0.0625, 0.3125},
+			{-0.5, -0.0625, -0.25, 0.5, 0, 0.25},
+			{-0.5, 0, -0.1875,0.5, 0.0625, 0.1875},
+			{-0.5, 0.0625, -0.0625, 0.5, 0.125, 0.0625},
+		},
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, -0.5, -0.4, 0.5, 0.2, 0.4},
+
+		},
+	},
+	sounds = default.node_sound_wood_defaults(),
+	after_place_node = function(pos, placer)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("owner", placer:get_player_name() or "")
+		meta:set_string("infotext", S("Ironbound Chest (owned by @1)", meta:get_string("owner")))
+	end,
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", S("Ironbound Chest"))
+		meta:set_string("owner", "")
+		local inv = meta:get_inventory()
+		inv:set_size("main", 8*4)
+	end,
+	can_dig = function(pos,player)
+		local meta = minetest.get_meta(pos);
+		local inv = meta:get_inventory()
+		return inv:is_empty("main") and has_ironbound_chest_privilege(meta, player)
+	end,
+	allow_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
+		local meta = minetest.get_meta(pos)
+		if not has_ironbound_chest_privilege(meta, player) then
+			minetest.log("action", S("@1 tried to access a locked chest belonging to @2 at @3",
+				player:get_player_name(), meta:get_string("owner"), minetest.pos_to_string(pos)))
+			return 0
+		end
+		return count
+	end,
+	allow_metadata_inventory_put = function(pos, listname, index, stack, player)
+		local meta = minetest.get_meta(pos)
+		if not has_ironbound_chest_privilege(meta, player) then
+			minetest.log("action", S("@1 tried to access a locked chest belonging to @2 at @3",
+					player:get_player_name(), meta:get_string("owner"), minetest.pos_to_string(pos)))
+			return 0
+		end
+		return stack:get_count()
+	end,
+	allow_metadata_inventory_take = function(pos, listname, index, stack, player)
+		local meta = minetest.get_meta(pos)
+		if not has_ironbound_chest_privilege(meta, player) then
+			minetest.log("action", S("@1 tried to access a locked chest belonging to @2 at @3",
+				player:get_player_name(), meta:get_string("owner"), minetest.pos_to_string(pos)))
+			return 0
+		end
+		return stack:get_count()
+	end,
+	on_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
+		minetest.log("action", S("@1 moves stuff in locked chest at @2", player:get_player_name(), minetest.pos_to_string(pos)))
+	end,
+	on_metadata_inventory_put = function(pos, listname, index, stack, player)
+		minetest.log("action", S("@1 moves stuff to locked chest at @2", player:get_player_name(), minetest.pos_to_string(pos)))
+	end,
+	on_metadata_inventory_take = function(pos, listname, index, stack, player)
+		minetest.log("action", S("@1 takes stuff from locked chest at @2", player:get_player_name(), minetest.pos_to_string(pos)))
+	end,
+	on_rightclick = function(pos, node, clicker)
+		local meta = minetest.get_meta(pos)
+		if has_ironbound_chest_privilege(meta, clicker) then
+			minetest.show_formspec(
+				clicker:get_player_name(),
+				"castle_storage:ironbound_chest",
+				get_ironbound_chest_formspec(pos)
+			)
+		end
+	end,
+	on_blast = function() end,
+})
+
+minetest.register_craft({
+	output = "castle_storage:ironbound_chest",
+	recipe = {
+		{"default:wood", "default:steel_ingot","default:wood"},
+		{"default:wood", "default:steel_ingot","default:wood"}
+	}
+})
+
+-- Hopper compatibility
+if minetest.get_modpath("hopper") and hopper ~= nil and hopper.add_container ~= nil then
+	hopper:add_container({
+		{"top", "castle_storage:ironbound_chest", "main"},
+		{"side", "castle_storage:ironbound_chest", "main"},
+		{"bottom", "castle_storage:ironbound_chest", "main"},
+	})
+end