MineClone2/mods/ENTITIES/mcl_entity_invs/init.lua

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mcl_entity_invs = {}
local open_invs = {}
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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
minetest.remove_detached_inventory(ent._inv_id)
ent._inv = nil
end
end
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function mcl_entity_invs.show_inv_form(ent,player,text)
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if not ent._inv_id then return end
if not open_invs[ent] then
open_invs[ent] = 0
end
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text = text or ""
ent._inv = load_inv(ent,ent._inv_size)
open_invs[ent] = open_invs[ent] + 1
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local playername = player:get_player_name()
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local rows = 3
local cols = (math.ceil(ent._inv_size/rows))
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local spacing = (9 - cols) / 2
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local formspec = "size[9,8.75]"
.. "label[0,0;" .. minetest.formspec_escape(
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minetest.colorize("#313131", ent._inv_title .. " ".. text)) .. "]"
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.. "list[detached:"..ent._inv_id..";main;"..spacing..",0.5;"..cols..","..rows..";]"
.. mcl_formspec.get_itemslot_bg(spacing,0.5,cols,rows)
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.. "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)
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if not ent._items then return end
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
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ent._items = nil
end
local function on_remove(self,killer,oldf)
save_inv(self)
drop_inv(self)
if oldf then return oldf(self,killer) 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
open_invs[k] = open_invs[k] - 1
if open_invs[k] < 1 then
save_inv(k)
open_invs[k] = nil
end
end
end
end)
function mcl_entity_invs.register_inv(entity_name,show_name,size,no_on_righclick)
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assert(minetest.registered_entities[entity_name],"mcl_entity_invs.register_inv called with invalid entity: "..tostring(entity_name))
minetest.registered_entities[entity_name]._inv_size = size
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minetest.registered_entities[entity_name]._inv_title = show_name
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local old_oa = minetest.registered_entities[entity_name].on_activate
minetest.registered_entities[entity_name].on_activate = function(self,staticdata,dtime_s)
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local r
if old_oa then r=old_oa(self,staticdata,dtime_s) end
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local d = minetest.deserialize(staticdata)
if type(d) == "table" and d._inv_id then
self._inv_id = d._inv_id
self._items = d._items
self._inv_size = d._inv_size
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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
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return r
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end
if not no_on_righclick then
local old_rc = minetest.registered_entities[entity_name].on_rightclick
minetest.registered_entities[entity_name].on_rightclick = function(self,clicker)
mcl_entity_invs.show_inv_form(self,clicker,"")
if old_rc then return old_rc(self,clicker) end
end
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end
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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)
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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))
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d._inv_id = self._inv_id
d._inv_size = self._inv_size
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d._items = {}
if self._items then
for i,it in ipairs(self._items) do
d._items[i] = it
end
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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)
save_inv(self)
if removal then
on_remove(self)
end
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,killer)
if not self.is_mob then
on_remove(self,killer,old_od)
end
end
local old_odi = minetest.registered_entities[entity_name].on_die
minetest.registered_entities[entity_name].on_die = function(self,killer)
if self.is_mob then
on_remove(self,killer,old_od)
end
end
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end