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hopper/init.lua
FaceDeer 0defbdb522 add api support for registering groups
2017-02-25 06:59:43 -07:00

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-- define global
hopper = {}
-- internationalization boilerplate
local MP = minetest.get_modpath(minetest.get_current_modname())
local S, NS = dofile(MP.."/intllib.lua")
-- settings
local texture_resolution = minetest.setting_get("hopper_texture_size")
if texture_resolution == nil then
texture_resolution = "16"
end
local single_craftable_item = minetest.setting_getbool("hopper_single_craftable_item")
if single_craftable_item == nil then
single_craftable_item = true
end
-------------------------------------------------------------------------------------------
-- API
local containers = {}
local groups = {}
local neighbors = {}
-- global function to add new containers
function hopper:add_container(list)
for _, entry in pairs(list) do
local target_node = entry[2]
local neighbor_node
if string.sub(target_node, 1, 6) == "group:" then
local group_identifier, group_number
local equals_index = string.find(target_node, "=")
if equals_index ~= nil then
group_identifier = string.sub(target_node, 7, equals_index-1)
-- it's possible that the string was of the form "group:blah = 1", in which case we want to trim spaces off the end of the group identifier
local space_index = string.find(group_identifier, " ")
if space_index ~= nil then
group_identifier = string.sub(group_identifier, 1, space_index-1)
end
group_number = tonumber(string.sub(target_node, equals_index+1, -1))
else
group_identifier = string.sub(target_node, 7, -1)
group_number = "all" -- special value to indicate no number was provided
end
local group_info = groups[group_identifier]
if group_info == nil then
group_info = {}
end
if group_info[group_number] == nil then
group_info[group_number] = {}
end
group_info[group_number][entry[1]] = entry[3]
groups[group_identifier] = group_info
neighbor_node = "group:"..group_identifier
-- result is a table of the form groups[group_identifier][group_number][relative_position][inventory_name]
else
local node_info = containers[target_node]
if node_info == nil then
node_info = {}
end
node_info[entry[1]] = entry[3]
containers[target_node] = node_info
neighbor_node = target_node
-- result is a table of the form containers[target_node_name][relative_position][inventory_name]
end
local already_in_neighbors = false
for _, value in pairs(neighbors) do
if value == neighbor_node then
already_in_neighbors = true
break
end
end
if not already_in_neighbors then
table.insert(neighbors, neighbor_node)
end
end
end
-- "top" indicates what inventory the hopper will take items from if this node is located at the hopper's wide end
-- "side" indicates what inventory the hopper will put items into if this node is located at the hopper's narrow end and at the same height as the hopper
-- "bottom" indicates what inventory the hopper will put items into if this node is located at the hopper's narrow end and either above or below the hopper.
hopper:add_container({
{"top", "hopper:hopper", "main"},
{"bottom", "hopper:hopper", "main"},
{"side", "hopper:hopper", "main"},
{"side", "hopper:hopper_side", "main"},
{"bottom", "hopper:chute", "main"},
{"side", "hopper:chute", "main"},
{"top", "default:chest", "main"},
{"bottom", "default:chest", "main"},
{"side", "default:chest", "main"},
{"top", "default:furnace", "dst"},
{"bottom", "default:furnace", "src"},
{"side", "default:furnace", "fuel"},
{"top", "default:furnace_active", "dst"},
{"bottom", "default:furnace_active", "src"},
{"side", "default:furnace_active", "fuel"},
{"top", "default:chest_locked", "main"},
{"bottom", "default:chest_locked", "main"},
{"side", "default:chest_locked", "main"},
})
-- protector redo mod support
if minetest.get_modpath("protector") then
hopper:add_container({
{"top", "protector:chest", "main"},
{"bottom", "protector:chest", "main"},
{"side", "protector:chest", "main"},
})
end
-- wine mod support
if minetest.get_modpath("wine") then
hopper:add_container({
{"top", "wine:wine_barrel", "dst"},
{"bottom", "wine:wine_barrel", "src"},
{"side", "wine:wine_barrel", "src"},
})
end
-------------------------------------------------------------------------------------------
-- Documentation
local hopper_long_desc = S("Hopper to transfer items between neighboring blocks' inventories.")
local hopper_usage = S("Items are transfered from the block at the wide end of the hopper to the block at the narrow end of the hopper at a rate of one per second. Items can also be placed directly into the hopper's inventory, or they can be dropped into the space above a hopper and will be sucked into the hopper's inventory automatically.\n\n")
if single_craftable_item then
hopper_usage = hopper_usage .. S("Hopper blocks come in both 'vertical' and 'side' forms, but when in a player's inventory both are represented by a single generic item. The type of hopper block that will be placed when the player uses this item depends on what is pointed at - when the hopper item is pointed at the top or bottom face of a block a vertical hopper is placed, when aimed at the side of a block a side hopper is produced that connects to the clicked-on side.\n\n")
else
hopper_usage = hopper_usage .. S("Hopper blocks come in both 'vertical' and 'side' forms. They can be interconverted between the two forms via the crafting grid.\n\n")
end
hopper_usage = hopper_usage .. S("When used with furnaces, hoppers inject items into the furnace's \"raw material\" inventory slot when the narrow end is attached to the top or bottom and inject items into the furnace's \"fuel\" inventory slot when attached to the furnace's side.\n\nItems that cannot be placed in a target block's inventory will remain in the hopper.\n\nHoppers have the same permissions as the player that placed them. Hoppers placed by you are allowed to take items from or put items into locked chests that you own, but hoppers placed by other players will be unable to do so. A hopper's own inventory is not not owner-locked, though, so you can use this as a way to allow other players to deposit items into your locked chests.")
local chute_long_desc = S("A chute to transfer items over longer distances.")
local chute_usage = S("Chutes operate much like hoppers but do not have their own intake capability. Items can only be inserted into a chute manually or by a hopper connected to a chute. They transfer items in the direction indicated by the arrow on their narrow segment at a rate of one item per second. They have a small buffer capacity, and any items that can't be placed into the target block's inventory will remain lodged in the chute's buffer until manually removed or their destination becomes available.")
-------------------------------------------------------------------------------------------
-- Target inventory retrieval
-- looks first for a registration matching the specific node name, then for a registration
-- matching group and value, then for a registration matching a group and *any* value
local get_registered_inventories_for = function(target_node_name)
local output = containers[target_node_name]
if output ~= nil then return output end
local target_def = minetest.registered_nodes[target_node_name]
if target_def.groups == nil then return nil end
for group, value in pairs(target_def.groups) do
local registered_group = groups[group]
if registered_group ~= nil then
output = registered_group[value]
if output ~= nil then return output end
output = registered_group["all"]
if output ~= nil then return output end
end
end
return nil
end
-------------------------------------------------------------------------------------------
-- Inventory transfer functions
-- Used to remove items from the target block and put it into the hopper's inventory
local function take_item_from(hopper_pos, target_pos, target_node, target_inventory_name)
if target_inventory_name == nil then
return
end
--hopper inventory
local hopper_meta = minetest.get_meta(hopper_pos);
local hopper_inv = hopper_meta:get_inventory()
local placer = minetest.get_player_by_name(hopper_meta:get_string("placer"))
--source inventory
local target_inv = minetest.get_meta(target_pos):get_inventory()
local target_inv_size = target_inv:get_size(target_inventory_name)
local target_def = minetest.registered_nodes[target_node.name]
if target_inv:is_empty(target_inventory_name) == false then
for i = 1,target_inv_size do
local stack = target_inv:get_stack(target_inventory_name, i)
local item = stack:get_name()
if item ~= "" then
if hopper_inv:room_for_item("main", item) then
local stack_to_take = stack:take_item(1)
if target_def.allow_metadata_inventory_take == nil
or placer == nil -- backwards compatibility, older versions of this mod didn't record who placed the hopper
or target_def.allow_metadata_inventory_take(target_pos, target_inventory_name, i, stack_to_take, placer) > 0 then
target_inv:set_stack(target_inventory_name, i, stack)
--add to hopper
hopper_inv:add_item("main", item)
if target_def.on_metadata_inventory_take ~= nil and placer ~= nil then
target_def.on_metadata_inventory_take(target_pos, target_inventory_name, i, stack_to_take, placer)
end
break
end
end
end
end
end
end
-- Used to put items from the hopper inventory into the target block
local function send_item_to(hopper_pos, target_pos, target_node, target_inventory_name)
local hopper_meta = minetest.get_meta(hopper_pos)
local target_def = minetest.registered_nodes[target_node.name]
local eject_item = hopper_meta:get_string("eject") == "true" and target_def.buildable_to
if not eject_item and not target_inventory_name then
return
end
--hopper inventory
local hopper_meta = minetest.get_meta(hopper_pos);
local hopper_inv = hopper_meta:get_inventory()
if hopper_inv:is_empty("main") == true then
return
end
local hopper_inv_size = hopper_inv:get_size("main")
local placer = minetest.get_player_by_name(hopper_meta:get_string("placer"))
--target inventory
local target_inv = minetest.get_meta(target_pos):get_inventory()
for i = 1,hopper_inv_size do
local stack = hopper_inv:get_stack("main", i)
local item = stack:get_name()
if item ~= "" then
if target_inventory_name then
if target_inv:room_for_item(target_inventory_name, item) then
local stack_to_put = stack:take_item(1)
if target_def.allow_metadata_inventory_put == nil
or placer == nil -- backwards compatibility, older versions of this mod didn't record who placed the hopper
or target_def.allow_metadata_inventory_put(target_pos, target_inventory_name, i, stack_to_put, placer) > 0 then
hopper_inv:set_stack("main", i, stack)
--add to target node
target_inv:add_item(target_inventory_name, stack_to_put)
if target_def.on_metadata_inventory_put ~= nil and placer ~= nil then
target_def.on_metadata_inventory_put(target_pos, target_inventory_name, i, stack_to_put, placer)
end
break
end
end
elseif eject_item then
local stack_to_put = stack:take_item(1)
minetest.add_item(target_pos, stack_to_put)
hopper_inv:set_stack("main", i, stack)
end
end
end
end
-------------------------------------------------------------------------------------------
-- Nodes
local function get_eject_button_texts(pos)
if minetest.get_meta(pos):get_string("eject") == "true" then
return S("Don't\nEject"), S("This hopper is currently set to eject items from its output\neven if there isn't a compatible block positioned to receive it.\nClick this button to disable this feature.")
else
return S("Eject\nItems"), S("This hopper is currently set to hold on to item if there\nisn't a compatible block positioned to receive it.\nClick this button to have it eject items instead.")
end
end
local function get_string_pos(pos)
return pos.x .. "," .. pos.y .. "," ..pos.z
end
-- formspec
local function get_hopper_formspec(pos)
local eject_button_text, eject_button_tooltip = get_eject_button_texts(pos)
local spos = get_string_pos(pos)
local formspec =
"size[8,9]"
.. default.gui_bg
.. default.gui_bg_img
.. default.gui_slots
.. "list[nodemeta:" .. spos .. ";main;2,0.3;4,4;]"
.. "button_exit[7,2;1,1;eject;"..eject_button_text.."]"
.. "tooltip[eject;"..eject_button_tooltip.."]"
.. "list[current_player;main;0,4.85;8,1;]"
.. "list[current_player;main;0,6.08;8,3;8]"
.. "listring[nodemeta:" .. spos .. ";main]"
.. "listring[current_player;main]"
return formspec
end
local hopper_on_place = function(itemstack, placer, pointed_thing, node_name)
local pos = pointed_thing.under
local pos2 = pointed_thing.above
local x = pos.x - pos2.x
local z = pos.z - pos2.z
local returned_stack, success
-- unfortunately param2 overrides are needed for side hoppers even in the non-single-craftable-item case
-- because they are literally *side* hoppers - their spouts point to the side rather than to the front, so
-- the default item_place_node orientation code will not orient them pointing toward the selected surface.
if x == -1 and (single_craftable_item or node_name == "hopper:hopper_side") then
returned_stack, success = minetest.item_place_node(ItemStack("hopper:hopper_side"), placer, pointed_thing, 0)
elseif x == 1 and (single_craftable_item or node_name == "hopper:hopper_side") then
returned_stack, success = minetest.item_place_node(ItemStack("hopper:hopper_side"), placer, pointed_thing, 2)
elseif z == -1 and (single_craftable_item or node_name == "hopper:hopper_side") then
returned_stack, success = minetest.item_place_node(ItemStack("hopper:hopper_side"), placer, pointed_thing, 3)
elseif z == 1 and (single_craftable_item or node_name == "hopper:hopper_side") then
returned_stack, success = minetest.item_place_node(ItemStack("hopper:hopper_side"), placer, pointed_thing, 1)
else
if single_craftable_item then
node_name = "hopper:hopper" -- For cases where single_craftable_item was set on an existing world and there are still side hoppers in player inventories
end
returned_stack, success = minetest.item_place_node(ItemStack(node_name), placer, pointed_thing)
end
if success then
local meta = minetest.get_meta(pos2)
meta:set_string("placer", placer:get_player_name())
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
end
return itemstack
end
-------------------------------------------------------------------------------------------
-- Hoppers
minetest.register_node("hopper:hopper", {
drop = "hopper:hopper",
description = S("Hopper"),
_doc_items_longdesc = hopper_long_desc,
_doc_items_usagehelp = hopper_usage,
groups = {cracky = 3},
drawtype = "nodebox",
paramtype = "light",
paramtype2 = "facedir",
tiles = {
"hopper_top_" .. texture_resolution .. ".png",
"hopper_top_" .. texture_resolution .. ".png",
"hopper_front_" .. texture_resolution .. ".png"
},
node_box = {
type = "fixed",
fixed = {
--funnel walls
{-0.5, 0.0, 0.4, 0.5, 0.5, 0.5},
{0.4, 0.0, -0.5, 0.5, 0.5, 0.5},
{-0.5, 0.0, -0.5, -0.4, 0.5, 0.5},
{-0.5, 0.0, -0.5, 0.5, 0.5, -0.4},
--funnel base
{-0.5, 0.0, -0.5, 0.5, 0.1, 0.5},
--spout
{-0.3, -0.3, -0.3, 0.3, 0.0, 0.3},
{-0.15, -0.3, -0.15, 0.15, -0.7, 0.15},
},
},
selection_box = {
type = "fixed",
fixed = {
--funnel
{-0.5, 0.0, -0.5, 0.5, 0.5, 0.5},
--spout
{-0.3, -0.3, -0.3, 0.3, 0.0, 0.3},
{-0.15, -0.3, -0.15, 0.15, -0.7, 0.15},
},
},
on_construct = function(pos)
local inv = minetest.get_meta(pos):get_inventory()
inv:set_size("main", 4*4)
end,
on_place = function(itemstack, placer, pointed_thing)
return hopper_on_place(itemstack, placer, pointed_thing, "hopper:hopper")
end,
can_dig = function(pos, player)
local inv = minetest.get_meta(pos):get_inventory()
return inv:is_empty("main")
end,
on_rightclick = function(pos, node, clicker, itemstack)
if minetest.is_protected(pos, clicker:get_player_name()) and not minetest.check_player_privs(clicker, "protection_bypass") then
return
end
minetest.show_formspec(clicker:get_player_name(),
"hopper_formspec:"..minetest.pos_to_string(pos), get_hopper_formspec(pos))
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 hopper 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 hopper 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 moves stuff from hopper at @2",
player:get_player_name(), minetest.pos_to_string(pos)))
end,
})
local hopper_side_drop
local hopper_groups
if single_craftable_item then
hopper_side_drop = "hopper:hopper"
hopper_groups = {cracky=3, not_in_creative_inventory = 1}
else
hopper_side_drop = "hopper:hopper_side"
hopper_groups = {cracky=3}
end
minetest.register_node("hopper:hopper_side", {
description = S("Side Hopper"),
_doc_items_longdesc = hopper_long_desc,
_doc_items_usagehelp = hopper_usage,
drop = hopper_side_drop,
groups = hopper_groups,
drawtype = "nodebox",
paramtype = "light",
paramtype2 = "facedir",
tiles = {
"hopper_top_" .. texture_resolution .. ".png",
"hopper_bottom_" .. texture_resolution .. ".png",
"hopper_back_" .. texture_resolution .. ".png",
"hopper_side_" .. texture_resolution .. ".png",
"hopper_back_" .. texture_resolution .. ".png",
"hopper_back_" .. texture_resolution .. ".png"
},
node_box = {
type = "fixed",
fixed = {
--funnel walls
{-0.5, 0.0, 0.4, 0.5, 0.5, 0.5},
{0.4, 0.0, -0.5, 0.5, 0.5, 0.5},
{-0.5, 0.0, -0.5, -0.4, 0.5, 0.5},
{-0.5, 0.0, -0.5, 0.5, 0.5, -0.4},
--funnel base
{-0.5, 0.0, -0.5, 0.5, 0.1, 0.5},
--spout
{-0.3, -0.3, -0.3, 0.3, 0.0, 0.3},
{-0.7, -0.3, -0.15, 0.15, 0.0, 0.15},
},
},
selection_box = {
type = "fixed",
fixed = {
--funnel
{-0.5, 0.0, -0.5, 0.5, 0.5, 0.5},
--spout
{-0.3, -0.3, -0.3, 0.3, 0.0, 0.3},
{-0.7, -0.3, -0.15, 0.15, 0.0, 0.15},
},
},
on_construct = function(pos)
local inv = minetest.get_meta(pos):get_inventory()
inv:set_size("main", 4*4)
end,
on_place = function(itemstack, placer, pointed_thing)
return hopper_on_place(itemstack, placer, pointed_thing, "hopper:hopper_side")
end,
can_dig = function(pos,player)
local inv = minetest.get_meta(pos):get_inventory()
return inv:is_empty("main")
end,
on_rightclick = function(pos, node, clicker, itemstack)
if minetest.is_protected(pos, clicker:get_player_name()) and not minetest.check_player_privs(clicker, "protection_bypass") then
return
end
minetest.show_formspec(clicker:get_player_name(),
"hopper_formspec:"..minetest.pos_to_string(pos), get_hopper_formspec(pos))
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 hopper 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 hopper 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 moves stuff from hopper at @2",
player:get_player_name(), minetest.pos_to_string(pos)))
end,
})
local function get_chute_formspec(pos)
local eject_button_text, eject_button_tooltip = get_eject_button_texts(pos)
local spos = pos.x .. "," .. pos.y .. "," ..pos.z
local formspec =
"size[8,7]"
.. default.gui_bg
.. default.gui_bg_img
.. default.gui_slots
.. "list[nodemeta:" .. spos .. ";main;3,0.3;2,2;]"
.. "button_exit[7,1;1,1;eject;"..eject_button_text.."]"
.. "tooltip[eject;"..eject_button_tooltip.."]"
.. "list[current_player;main;0,2.85;8,1;]"
.. "list[current_player;main;0,4.08;8,3;8]"
.. "listring[nodemeta:" .. spos .. ";main]"
.. "listring[current_player;main]"
return formspec
end
-------------------------------------------------------------------------------------------
-- Chute
minetest.register_node("hopper:chute", {
description = S("Hopper Chute"),
_doc_items_longdesc = chute_long_desc,
_doc_items_usagehelp = chute_usage,
drop = "hopper:chute",
groups = {cracky = 3},
drawtype = "nodebox",
paramtype = "light",
paramtype2 = "facedir",
tiles = {
"hopper_bottom_" .. texture_resolution .. ".png^hopper_chute_arrow_" .. texture_resolution .. ".png",
"hopper_bottom_" .. texture_resolution .. ".png^(hopper_chute_arrow_" .. texture_resolution .. ".png^[transformR180)",
"hopper_bottom_" .. texture_resolution .. ".png^(hopper_chute_arrow_" .. texture_resolution .. ".png^[transformR270)",
"hopper_bottom_" .. texture_resolution .. ".png^(hopper_chute_arrow_" .. texture_resolution .. ".png^[transformR90)",
"hopper_top_" .. texture_resolution .. ".png",
"hopper_bottom_" .. texture_resolution .. ".png"
},
node_box = {
type = "fixed",
fixed = {
{-0.3, -0.3, -0.3, 0.3, 0.3, 0.3},
{-0.2, -0.2, 0.3, 0.2, 0.2, 0.7},
},
},
on_construct = function(pos)
local inv = minetest.get_meta(pos):get_inventory()
inv:set_size("main", 2*2)
end,
on_place = function(itemstack, placer, pointed_thing, node_name)
local pos = pointed_thing.under
local pos2 = pointed_thing.above
local x = pos.x - pos2.x
local z = pos.z - pos2.z
local returned_stack, success = minetest.item_place_node(itemstack, placer, pointed_thing)
if success then
local meta = minetest.get_meta(pos2)
meta:set_string("placer", placer:get_player_name())
end
return returned_stack
end,
can_dig = function(pos,player)
local inv = minetest.get_meta(pos):get_inventory()
return inv:is_empty("main")
end,
on_rightclick = function(pos, node, clicker, itemstack)
if minetest.is_protected(pos, clicker:get_player_name()) and not minetest.check_player_privs(clicker, "protection_bypass") then
return
end
minetest.show_formspec(clicker:get_player_name(),
"hopper_formspec:"..minetest.pos_to_string(pos), get_chute_formspec(pos))
end,
on_metadata_inventory_put = function(pos, listname, index, stack, player)
minetest.log("action", S("@1 moves stuff to chute at @2",
player:get_player_name(), minetest.pos_to_string(pos)))
local timer = minetest.get_node_timer(pos)
if not timer:is_started() then
timer:start(1)
end
end,
on_timer = function(pos, elapsed)
local meta = minetest.get_meta(pos);
local inv = meta:get_inventory()
local eject_item = meta:get_string("eject") == "true"
local node = minetest.get_node(pos)
local dir = minetest.facedir_to_dir(node.param2)
local destination_pos = vector.add(pos, dir)
local output_direction
if dir.y == 0 then
output_direction = "horizontal"
end
local destination_node = minetest.get_node(destination_pos)
local registered_inventories = get_registered_inventories_for(destination_node.name)
if registered_inventories ~= nil then
if output_direction == "horizontal" then
send_item_to(pos, destination_pos, destination_node, registered_inventories["side"])
else
send_item_to(pos, destination_pos, destination_node, registered_inventories["bottom"])
end
else
send_item_to(pos, destination_pos, destination_node)
end
if not inv:is_empty("main") then
minetest.get_node_timer(pos):start(1)
end
end,
})
-------------------------------------------------------------------------------------------
-- Formspec handling
minetest.register_on_player_receive_fields(function(player, formname, fields)
if "hopper_formspec:" == string.sub(formname, 1, 16) then
local pos = minetest.string_to_pos(string.sub(formname, 17, -1))
local meta = minetest.get_meta(pos)
local eject_setting = meta:get_string("eject") == "true"
if fields.eject then
if eject_setting then
meta:set_string("eject", nil)
else
meta:set_string("eject", "true")
end
end
end
end)
-------------------------------------------------------------------------------------------
-- ABMs
-- suck in items on top of hopper
minetest.register_abm({
label = "Hopper suction",
nodenames = {"hopper:hopper", "hopper:hopper_side"},
interval = 1.0,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
if active_object_count_wider == 0 then
return
end
local inv = minetest.get_meta(pos):get_inventory()
local posob
for _,object in pairs(minetest.get_objects_inside_radius(pos, 1)) do
if not object:is_player()
and object:get_luaentity()
and object:get_luaentity().name == "__builtin:item"
and inv
and inv:room_for_item("main",
ItemStack(object:get_luaentity().itemstring)) then
posob = object:getpos()
if math.abs(posob.x - pos.x) <= 0.5
and posob.y - pos.y <= 0.85
and posob.y - pos.y >= 0.3 then
inv:add_item("main",
ItemStack(object:get_luaentity().itemstring))
object:get_luaentity().itemstring = ""
object:remove()
end
end
end
end,
})
-- Used to convert side hopper facing into source and destination relative coordinates
-- This was tedious to populate and test
local directions = {
[0]={["src"]={x=0, y=1, z=0},["dst"]={x=-1, y=0, z=0}},
[1]={["src"]={x=0, y=1, z=0},["dst"]={x=0, y=0, z=1}},
[2]={["src"]={x=0, y=1, z=0},["dst"]={x=1, y=0, z=0}},
[3]={["src"]={x=0, y=1, z=0},["dst"]={x=0, y=0, z=-1}},
[4]={["src"]={x=0, y=0, z=1},["dst"]={x=-1, y=0, z=0}},
[5]={["src"]={x=0, y=0, z=1},["dst"]={x=0, y=-1, z=0}},
[6]={["src"]={x=0, y=0, z=1},["dst"]={x=1, y=0, z=0}},
[7]={["src"]={x=0, y=0, z=1},["dst"]={x=0, y=1, z=0}},
[8]={["src"]={x=0, y=0, z=-1},["dst"]={x=-1, y=0, z=0}},
[9]={["src"]={x=0, y=0, z=-1},["dst"]={x=0, y=1, z=0}},
[10]={["src"]={x=0, y=0, z=-1},["dst"]={x=1, y=0, z=0}},
[11]={["src"]={x=0, y=0, z=-1},["dst"]={x=0, y=-1, z=0}},
[12]={["src"]={x=1, y=0, z=0},["dst"]={x=0, y=1, z=0}},
[13]={["src"]={x=1, y=0, z=0},["dst"]={x=0, y=0, z=1}},
[14]={["src"]={x=1, y=0, z=0},["dst"]={x=0, y=-1, z=0}},
[15]={["src"]={x=1, y=0, z=0},["dst"]={x=0, y=0, z=-1}},
[16]={["src"]={x=-1, y=0, z=0},["dst"]={x=0, y=-1, z=0}},
[17]={["src"]={x=-1, y=0, z=0},["dst"]={x=0, y=0, z=1}},
[18]={["src"]={x=-1, y=0, z=0},["dst"]={x=0, y=1, z=0}},
[19]={["src"]={x=-1, y=0, z=0},["dst"]={x=0, y=0, z=-1}},
[20]={["src"]={x=0, y=-1, z=0},["dst"]={x=1, y=0, z=0}},
[21]={["src"]={x=0, y=-1, z=0},["dst"]={x=0, y=0, z=1}},
[22]={["src"]={x=0, y=-1, z=0},["dst"]={x=-1, y=0, z=0}},
[23]={["src"]={x=0, y=-1, z=0},["dst"]={x=0, y=0, z=-1}},
}
local bottomdir = function(facedir)
return ({[0]={x=0, y=-1, z=0},
{x=0, y=0, z=-1},
{x=0, y=0, z=1},
{x=-1, y=0, z=0},
{x=1, y=0, z=0},
{x=0, y=1, z=0}})[math.floor(facedir/4)]
end
-- hopper workings
minetest.register_abm({
label = "Hopper transfer",
nodenames = {"hopper:hopper", "hopper:hopper_side"},
neighbors = neighbors,
interval = 1.0,
chance = 1,
catch_up = false,
action = function(pos, node, active_object_count, active_object_count_wider)
local source_pos, destination_pos, destination_dir
if node.name == "hopper:hopper_side" then
source_pos = vector.add(pos, directions[node.param2].src)
destination_dir = directions[node.param2].dst
destination_pos = vector.add(pos, destination_dir)
else
destination_dir = bottomdir(node.param2)
source_pos = vector.subtract(pos, destination_dir)
destination_pos = vector.add(pos, destination_dir)
end
local output_direction
if destination_dir.y == 0 then
output_direction = "horizontal"
end
local source_node = minetest.get_node(source_pos)
local destination_node = minetest.get_node(destination_pos)
local registered_source_inventories = get_registered_inventories_for(source_node.name)
if registered_source_inventories ~= nil then
take_item_from(pos, source_pos, source_node, registered_source_inventories["top"])
end
local registered_destination_inventories = get_registered_inventories_for(destination_node.name)
if registered_destination_inventories ~= nil then
if output_direction == "horizontal" then
send_item_to(pos, destination_pos, destination_node, registered_destination_inventories["side"])
else
send_item_to(pos, destination_pos, destination_node, registered_destination_inventories["bottom"])
end
else
send_item_to(pos, destination_pos, destination_node) -- for handling ejection
end
end,
})
-------------------------------------------------------------------------------------------
-- Crafts
minetest.register_craft({
output = "hopper:hopper",
recipe = {
{"default:steel_ingot","default:chest","default:steel_ingot"},
{"","default:steel_ingot",""},
}
})
minetest.register_craft({
output = "hopper:chute",
recipe = {
{"default:steel_ingot","default:chest","default:steel_ingot"},
}
})
if not single_craftable_item then
minetest.register_craft({
output = "hopper:hopper_side",
recipe = {
{"default:steel_ingot","default:chest","default:steel_ingot"},
{"","","default:steel_ingot"},
}
})
minetest.register_craft({
output = "hopper:hopper_side",
type="shapeless",
recipe = {"hopper:hopper"},
})
minetest.register_craft({
output = "hopper:hopper",
type="shapeless",
recipe = {"hopper:hopper_side"},
})
end
-- add lucky blocks
if minetest.get_modpath("lucky_block") then
lucky_block:add_blocks({
{"dro", {"hopper:hopper"}, 3},
{"nod", "default:lava_source", 1},
})
end
print (S("[MOD] Hopper loaded"))
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