technic/iron_chest.lua

minetest.register_craft({
	output = 'technic:iron_chest 1',
	recipe = {
		{'default:steel_ingot','default:steel_ingot','default:steel_ingot'},
		{'default:steel_ingot','default:chest','default:steel_ingot'},
		{'default:steel_ingot','default:steel_ingot','default:steel_ingot'},
	}
})

minetest.register_craft({
	output = 'technic:iron_locked_chest 1',
	recipe = {
		{'default:steel_ingot','default:steel_ingot','default:steel_ingot'},
		{'default:steel_ingot','default:chest_locked','default:steel_ingot'},
		{'default:steel_ingot','default:steel_ingot','default:steel_ingot'},
	}
})

minetest.register_craft({
	output = 'technic:iron_locked_chest 1',
	recipe = {
		{'default:steel_ingot'},
		{'technic:iron_chest'},
	}
})


minetest.register_craftitem("technic:iron_chest", {
	description = "Iron Chest",
	stack_max = 99,
})
minetest.register_craftitem("technic:iron_locked_chest", {
	description = "Iron Locked Chest",
	stack_max = 99,
})

minetest.register_alias("blabla", "technic:iron_chest")

minetest.register_node("technic:iron_chest", {
	description = "Iron Chest",
	tiles = {"technic_iron_chest_top.png", "technic_iron_chest_top.png", "technic_iron_chest_side.png",
		"technic_iron_chest_side.png", "technic_iron_chest_side.png", "technic_iron_chest_front.png"},
	paramtype2 = "facedir",
	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
	legacy_facedir_simple = true,
	sounds = default.node_sound_wood_defaults(),
	on_construct = function(pos)
		local meta = minetest.env:get_meta(pos)
		meta:set_string("formspec",
				"invsize[9,9;]"..
				"list[current_name;main;0,0;9,4;]"..
				"list[current_player;main;0,5;8,4;]")
		meta:set_string("infotext", "Iron Chest")
		local inv = meta:get_inventory()
		inv:set_size("main", 9*4)
	end,

	after_place_node = function(pos, placer)
		ntop1 = minetest.env:get_node({x=pos.x, y=pos.y, z=pos.z})
		ntop = minetest.env:get_node({x=pos.x, y=pos.y+1, z=pos.z})
                if ntop.name ~= "air" then
                        minetest.node_dig(pos, ntop1, placer)
		end
	end,

	can_dig = function(pos,player)
		local meta = minetest.env:get_meta(pos);
		local inv = meta:get_inventory()
		return inv:is_empty("main")
	end,
    on_metadata_inventory_move = function(pos, from_list, from_index,
			to_list, to_index, count, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff in chest at "..minetest.pos_to_string(pos))
		return minetest.node_metadata_inventory_move_allow_all(
				pos, from_list, from_index, to_list, to_index, count, player)
	end,
    on_metadata_inventory_offer = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff to chest at "..minetest.pos_to_string(pos))
		return minetest.node_metadata_inventory_offer_allow_all(
				pos, listname, index, stack, player)
	end,
      on_metadata_inventory_take = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" takes stuff from chest at "..minetest.pos_to_string(pos))
	end,
})

local function has_locked_chest_privilege(meta, player)
	if player:get_player_name() ~= meta:get_string("owner") then
		return false
	end
	return true
end

minetest.register_node("technic:iron_locked_chest", {
	description = "Iron Locked Chest",
	tiles = {"technic_iron_chest_top.png", "technic_iron_chest_top.png", "technic_iron_chest_side.png",
		"technic_iron_chest_side.png", "technic_iron_chest_side.png", "technic_iron_chest_locked.png"},
	paramtype2 = "facedir",
	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
	legacy_facedir_simple = true,
	sounds = default.node_sound_wood_defaults(),
	after_place_node = function(pos, placer)
		local meta = minetest.env:get_meta(pos)
		meta:set_string("owner", placer:get_player_name() or "")
		meta:set_string("infotext", "Locked Iron Chest (owned by "..
				meta:get_string("owner")..")")
	end,
on_construct = function(pos)
		local meta = minetest.env:get_meta(pos)
		meta:set_string("formspec",
				"invsize[9,9;]"..
				"list[current_name;main;0,0;9,4;]"..
				"list[current_player;main;0,5;8,4;]")
		meta:set_string("infotext", "Iron Locked Chest")
		meta:set_string("owner", "")
		local inv = meta:get_inventory()
		inv:set_size("main", 9*4)
	end,
	can_dig = function(pos,player)
		local meta = minetest.env:get_meta(pos);
		local inv = meta:get_inventory()
		return inv:is_empty("main")
	end,
	allow_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
		local meta = minetest.env:get_meta(pos)
		if not has_locked_chest_privilege(meta, player) then
			minetest.log("action", player:get_player_name()..
					" tried to access a locked chest belonging to "..
					meta:get_string("owner").." at "..
					minetest.pos_to_string(pos))
			return 0
		end
		return count
	end,
    allow_metadata_inventory_put = function(pos, listname, index, stack, player)
		local meta = minetest.env:get_meta(pos)
		if not has_locked_chest_privilege(meta, player) then
			minetest.log("action", player:get_player_name()..
					" tried to access a locked chest belonging to "..
					meta:get_string("owner").." at "..
					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.env:get_meta(pos)
		if not has_locked_chest_privilege(meta, player) then
			minetest.log("action", player:get_player_name()..
					" tried to access a locked chest belonging to "..
					meta:get_string("owner").." at "..
					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", player:get_player_name()..
				" moves stuff in locked chest at "..minetest.pos_to_string(pos))
	end,
    on_metadata_inventory_put = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff to locked chest at "..minetest.pos_to_string(pos))
	end,
    on_metadata_inventory_take = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" takes stuff from locked chest at "..minetest.pos_to_string(pos))
	end,
})

function add_item (player)
player:get_inventory():add_item("main", "blabla 1")
end