mcl_entity_invs = {} local function check_distance(inv,player,count) for _,o in pairs(minetest.get_objects_inside_radius(player:get_pos(),5)) do local l = o:get_luaentity() if l and l._inv_id and inv:get_location().name == l._inv_id then return count end end return 0 end local inv_callbacks = { allow_take = function(inv, listname, index, stack, player) return check_distance(inv,player,stack:get_count()) end, allow_move = function(inv, from_list, from_index, to_list, to_index, count, player) return check_distance(inv,player,count) end, allow_put = function(inv, listname, index, stack, player) return check_distance(inv,player,stack:get_count()) end, } local function load_inv(ent,size) if not ent._inv_id then return end local inv = minetest.get_inventory({type="detached", name=ent._inv_id}) if not inv then inv = minetest.create_detached_inventory(ent._inv_id, inv_callbacks) inv:set_size("main", size) if ent._items then inv:set_list("main",ent._items) end end return inv end local function save_inv(ent) if ent._inv then ent._items = {} for i,it in ipairs(ent._inv:get_list("main")) do ent._items[i] = it:to_string() end end minetest.remove_detached_inventory(ent._inv_id) end local open_invs = {} local function show_form(ent,player,show_name,size) if not ent._inv_id then return end ent._inv = load_inv(ent,size) if not open_invs[ent] then open_invs[ent] = {} end table.insert(open_invs[ent],player:get_player_name()) local playername = player:get_player_name() local rows = 3 local cols = (math.ceil(size/rows)) local spacing = (9 - cols) / 2 local formspec = "size[9,8.75]" .. "label[0,0;" .. minetest.formspec_escape( minetest.colorize("#313131", show_name)) .. "]" .. "list[detached:"..ent._inv_id..";main;"..spacing..",0.5;"..cols..","..rows..";]" .. mcl_formspec.get_itemslot_bg(spacing,0.5,cols,rows) .. "label[0,4.0;" .. minetest.formspec_escape( minetest.colorize("#313131", "Inventory")) .. "]" .. "list[current_player;main;0,4.5;9,3;9]" .. mcl_formspec.get_itemslot_bg(0,4.5,9,3) .. "list[current_player;main;0,7.74;9,1;]" .. mcl_formspec.get_itemslot_bg(0,7.74,9,1) .. "listring[detached:"..ent._inv_id..";main]" .. "listring[current_player;main]" minetest.show_formspec(playername,ent._inv_id,formspec) end local function drop_inv(ent) local pos = ent.object:get_pos() for i,it in pairs(ent._items) do local p = vector.add(pos,vector.new(math.random() - 0.5, math.random()-0.5, math.random()-0.5)) minetest.add_item(p,it) end end minetest.register_on_player_receive_fields(function(player, formname, fields) for k,v in pairs(open_invs) do if formname == k._inv_id then if #v < 2 then save_inv(k) open_invs[k] = nil end end end end) function mcl_entity_invs.register_inv(entity_name,show_name,size) assert(minetest.registered_entities[entity_name],"mcl_entity_invs.register_inv called with invalid entity: "..tostring(entity_name)) local old_oa = minetest.registered_entities[entity_name].on_activate minetest.registered_entities[entity_name].on_activate = function(self,staticdata,dtime_s) local r if old_oa then r=old_oa(self,clicker) end local d = minetest.deserialize(staticdata) if type(d) == "table" and d._inv_id then self._inv_id = d._inv_id self._items = d._items else self._inv_id="entity_inv_"..minetest.sha1(minetest.get_gametime()..minetest.pos_to_string(self.object:get_pos())..tostring(math.random())) --gametime and position for collision safety and math.random salt to protect against position brute-force end return r end local old_rc = minetest.registered_entities[entity_name].on_rightclick minetest.registered_entities[entity_name].on_rightclick = function(self,clicker) show_form(self,clicker,show_name,size) if old_rc then return old_rc(self,clicker) end end local old_gsd = minetest.registered_entities[entity_name].get_staticdata minetest.registered_entities[entity_name].get_staticdata = function(self) local old_sd = old_gsd(self) local d = minetest.deserialize(old_sd) assert(type(d) == "table","mcl_entity_invs currently only works with entities that return a (serialized) table in get_staticdata. "..tostring(self.name).." returned: "..tostring(old_sd)) d._inv_id = self._inv_id d._items = {} if self._items then for i,it in ipairs(self._items) do d._items[i] = it end end return minetest.serialize(d) end local old_ode = minetest.registered_entities[entity_name].on_deactivate minetest.registered_entities[entity_name].on_deactivate = function(self,removal) minetest.remove_detached_inventory(self._inv_id) if old_ode then return old_ode(self,removal) end end local old_od = minetest.registered_entities[entity_name].on_death minetest.registered_entities[entity_name].on_death = function(self,clicker) drop_inv(self) minetest.remove_detached_inventory(self._inv_id) if old_od then return old_od(self,clicker) end end end