forked from Mirrorlandia_minetest/digilines
318 lines
13 KiB
Lua
318 lines
13 KiB
Lua
local pipeworks_enabled = minetest.get_modpath("pipeworks") ~= nil
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-- Sends a message onto the Digilines network.
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-- pos: the position of the Digilines chest node.
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-- action: the action string indicating what happened.
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-- stack: the ItemStack that the action acted on (optional).
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-- from_slot: the slot number that is taken from (optional).
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-- to_slot: the slot number that is put into (optional).
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-- side: which side of the chest the action occurred (optional).
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local function send_message(pos, action, stack, from_slot, to_slot, side)
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local channel = minetest.get_meta(pos):get_string("channel")
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local msg = {
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action = action,
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stack = stack and stack:to_table(),
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from_slot = from_slot,
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to_slot = to_slot,
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-- Duplicate the vector in case the caller expects it not to change.
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side = side and vector.new(side)
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}
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digilines.receptor_send(pos, digilines.rules.default, channel, msg)
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end
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-- Checks if the inventory has become empty and, if so, sends an empty message.
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local function check_empty(pos)
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if minetest.get_meta(pos):get_inventory():is_empty("main") then
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send_message(pos, "empty")
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end
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end
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-- Checks if the inventory has become full for a particular type of item and,
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-- if so, sends a full message.
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local function check_full(pos, stack)
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local one_item_stack = ItemStack(stack)
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one_item_stack:set_count(1)
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if not minetest.get_meta(pos):get_inventory():room_for_item("main", one_item_stack) then
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send_message(pos, "full", one_item_stack)
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end
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end
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local tubeconn = pipeworks_enabled and "^pipeworks_tube_connection_wooden.png" or ""
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local tubescan = pipeworks_enabled and function(pos) pipeworks.scan_for_tube_objects(pos) end or nil
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-- A place to remember things from allow_metadata_inventory_put to
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-- on_metadata_inventory_put. This is a hack due to issue
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-- minetest/minetest#6534 that should be removed once that’s fixed.
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local last_inventory_put_index
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local last_inventory_put_stack
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-- A place to remember things from allow_metadata_inventory_take to
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-- tube.remove_items. This is a hack due to issue minetest-mods/pipeworks#205
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-- that should be removed once that’s fixed.
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local last_inventory_take_index
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minetest.register_alias("digilines_inventory:chest", "digilines:chest")
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minetest.register_node("digilines:chest", {
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description = "Digiline Chest",
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tiles = {
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"default_chest_top.png"..tubeconn,
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"default_chest_top.png"..tubeconn,
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"default_chest_side.png"..tubeconn,
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"default_chest_side.png"..tubeconn,
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"default_chest_side.png"..tubeconn,
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"default_chest_front.png",
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},
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paramtype2 = "facedir",
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legacy_facedir_simple = true,
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groups = {choppy=2, oddly_breakable_by_hand=2, tubedevice=1, tubedevice_receiver=1},
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sounds = default.node_sound_wood_defaults(),
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", "Digiline Chest")
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meta:set_string("formspec", "size[8,10]"..
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((default and default.gui_bg) or "")..
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((default and default.gui_bg_img) or "")..
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((default and default.gui_slots) or "")..
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"label[0,0;Digiline Chest]"..
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"list[current_name;main;0,1;8,4;]"..
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"field[2,5.5;5,1;channel;Channel;${channel}]"..
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((default and default.get_hotbar_bg) and default.get_hotbar_bg(0,6) or "")..
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"list[current_player;main;0,6;8,4;]"..
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"listring[]")
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local inv = meta:get_inventory()
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inv:set_size("main", 8*4)
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end,
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after_place_node = tubescan,
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after_dig_node = tubescan,
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can_dig = function(pos)
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return minetest.get_meta(pos):get_inventory():is_empty("main")
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end,
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on_receive_fields = function(pos, _, fields, sender)
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local name = sender:get_player_name()
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if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
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minetest.record_protection_violation(pos, name)
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return
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end
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if fields.channel ~= nil then
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minetest.get_meta(pos):set_string("channel",fields.channel)
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end
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end,
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digiline = {
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receptor = {},
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effector = {
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action = function() end
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}
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},
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tube = {
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connect_sides = {left=1, right=1, back=1, front=1, bottom=1, top=1},
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connects = function(i,param2)
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return not pipeworks.connects.facingFront(i,param2)
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end,
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input_inventory = "main",
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can_insert = function(pos, _, stack, direction)
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local ret = minetest.get_meta(pos):get_inventory():room_for_item("main", stack)
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if not ret then
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-- The stack cannot be accepted. It will never be passed to
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-- insert_object, but it should be reported as a toverflow.
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-- Here, direction = direction item is moving, which is into
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-- side.
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local side = vector.multiply(direction, -1)
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send_message(pos, "toverflow", stack, nil, nil, side)
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end
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return ret
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end,
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insert_object = function(pos, _, original_stack, direction)
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-- Here, direction = direction item is moving, which is into side.
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local side = vector.multiply(direction, -1)
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local inv = minetest.get_meta(pos):get_inventory()
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local inv_contents = inv:get_list("main")
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local any_put = false
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local stack = original_stack
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local stack_name = stack:get_name()
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local stack_count = stack:get_count()
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-- Walk the inventory, adding items to existing stacks of the same
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-- type.
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for i = 1, #inv_contents do
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local existing_stack = inv_contents[i]
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if not existing_stack:is_empty() and existing_stack:get_name() == stack_name then
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local leftover = existing_stack:add_item(stack)
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local leftover_count = leftover:get_count()
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if leftover_count ~= stack_count then
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-- We put some items into the slot. Update the slot in
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-- the inventory, tell Digilines listeners about it,
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-- and keep looking for the a place to put the
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-- leftovers if any.
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any_put = true
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inv:set_stack("main", i, existing_stack)
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local stack_that_was_put
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if leftover_count == 0 then
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stack_that_was_put = stack
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else
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stack_that_was_put = ItemStack(stack)
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stack_that_was_put:set_count(stack_count - leftover_count)
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end
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send_message(pos, "tput", stack_that_was_put, nil, i, side)
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stack = leftover
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stack_count = leftover_count
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if stack_count == 0 then
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break
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end
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end
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end
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end
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if stack_count ~= 0 then
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-- Walk the inventory, adding items to empty slots.
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for i = 1, #inv_contents do
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local existing_stack = inv_contents[i]
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if existing_stack:is_empty() then
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local leftover = existing_stack:add_item(stack)
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local leftover_count = leftover:get_count()
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if leftover_count ~= stack_count then
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-- We put some items into the slot. Update the slot in
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-- the inventory, tell Digilines listeners about it,
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-- and keep looking for the a place to put the
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-- leftovers if any.
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any_put = true
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inv:set_stack("main", i, existing_stack)
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local stack_that_was_put
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if leftover_count == 0 then
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stack_that_was_put = stack
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else
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stack_that_was_put = ItemStack(stack)
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stack_that_was_put:set_count(stack_count - leftover_count)
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end
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send_message(pos, "tput", stack_that_was_put, nil, i, side)
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stack = leftover
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stack_count = leftover_count
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if stack_count == 0 then
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break
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end
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end
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end
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end
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end
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if any_put then
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check_full(pos, original_stack)
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end
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if stack_count ~= 0 then
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-- Some items could not be added and bounced back. Report them.
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send_message(pos, "toverflow", stack, nil, nil, side)
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end
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return stack
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end,
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remove_items = function(pos, _, stack, dir, count)
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-- Here, stack is the ItemStack in our own inventory that is being
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-- pulled from, NOT the stack that is actually pulled out.
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-- Combining it with count gives the stack that is pulled out.
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-- Also, note that Pipeworks doesn’t pass the index to this
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-- function, so we use the one recorded in
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-- allow_metadata_inventory_take; because we don’t implement
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-- tube.can_remove, Pipeworks will call
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-- allow_metadata_inventory_take instead and will pass it the
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-- index.
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local taken = stack:take_item(count)
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minetest.get_meta(pos):get_inventory():set_stack("main", last_inventory_take_index, stack)
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send_message(pos, "ttake", taken, last_inventory_take_index, nil, dir)
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check_empty(pos)
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return taken
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end,
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},
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allow_metadata_inventory_put = function(pos, _, index, stack)
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-- Remember what was in the target slot before the put; see
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-- on_metadata_inventory_put for why we care.
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last_inventory_put_index = index
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last_inventory_put_stack = minetest.get_meta(pos):get_inventory():get_stack("main", index)
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return stack:get_count()
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end,
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allow_metadata_inventory_take = function(_, _, index, stack)
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-- Remember the index value; see tube.remove_items for why we care.
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last_inventory_take_index = index
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return stack:get_count()
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end,
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on_metadata_inventory_move = function(pos, _, from_index, _, to_index, count, player)
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-- See what would happen if we were to move the items back from in the
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-- opposite direction. In the event of a normal move, this must
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-- succeed, because a normal move subtracts some items from the from
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-- stack and adds them to the to stack; the two stacks naturally must
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-- be compatible and so the reverse operation must succeed. However, if
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-- the user *swaps* the two stacks instead, then due to issue
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-- minetest/minetest#6534, this function is only called once; however,
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-- when it is called, the stack that used to be in the to stack has
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-- already been moved to the from stack, so we can detect the situation
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-- by the fact that the reverse move will fail due to the from stack
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-- being incompatible with its former contents.
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local inv = minetest.get_meta(pos):get_inventory()
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local from_stack = inv:get_stack("main", from_index)
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local to_stack = inv:get_stack("main", to_index)
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local reverse_move_stack = ItemStack(to_stack)
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reverse_move_stack:set_count(count)
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local swapped = from_stack:add_item(reverse_move_stack):get_count() == count
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if swapped then
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local channel = minetest.get_meta(pos):get_string("channel")
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to_stack:set_count(count)
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local msg = {
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action = "uswap",
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-- The slot and stack do not match because this function is
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-- called after the action has taken place, but the Digilines
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-- message is from the perspective of a viewer who hasn’t
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-- observed the movement yet.
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x_stack = to_stack:to_table(),
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x_slot = from_index,
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y_stack = from_stack:to_table(),
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y_slot = to_index,
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}
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digilines.receptor_send(pos, digilines.rules.default, channel, msg)
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else
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to_stack:set_count(count)
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send_message(pos, "umove", to_stack, from_index, to_index)
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end
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minetest.log("action", player:get_player_name().." moves stuff in chest at "..minetest.pos_to_string(pos))
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end,
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on_metadata_inventory_put = function(pos, _, index, stack, player)
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-- Get what was in the target slot before the put; it has disappeared
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-- by now (been replaced by the result of the put action) but we saved
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-- it in allow_metadata_inventory_put. This should always work
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-- (allow_metadata_inventory_put should AFAICT always be called
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-- immediately before on_metadata_inventory_put), but in case of
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-- something weird happening, just fall back to using an empty
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-- ItemStack rather than crashing.
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local old_stack
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if last_inventory_put_index == index then
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old_stack = last_inventory_put_stack
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last_inventory_put_index = nil
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last_inventory_put_stack = nil
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else
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old_stack = ItemStack(nil)
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end
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-- If the player tries to place a stack into an inventory, there’s
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-- already a stack there, and the existing stack is either of a
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-- different item type or full, then obviously the stacks can’t be
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-- merged; instead the stacks are swapped. This information is not
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-- reported to mods (Minetest core neither tells us that a particular
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-- action was a swap, nor tells us a take followed by a put). In core,
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-- the condition for swapping is that you try to add the new stack to
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-- the existing stack and the leftovers are as big as the original
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-- stack to put. Replicate that logic here using the old stack saved in
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-- allow_metadata_inventory_put. If a swap happened, report it to the
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-- Digilines network as a utake followed by a uput.
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local leftovers = old_stack:add_item(stack)
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if leftovers:get_count() == stack:get_count() then
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send_message(pos, "utake", old_stack, index)
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end
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send_message(pos, "uput", stack, nil, index)
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check_full(pos, stack)
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minetest.log("action", player:get_player_name().." puts stuff into chest at "..minetest.pos_to_string(pos))
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end,
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on_metadata_inventory_take = function(pos, _, index, stack, player)
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send_message(pos, "utake", stack, index)
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check_empty(pos)
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minetest.log("action", player:get_player_name().." takes stuff from chest at "..minetest.pos_to_string(pos))
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end
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})
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minetest.register_craft({
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type = "shapeless",
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output = "digilines:chest",
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recipe = {"default:chest", "digilines:wire_std_00000000"}
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})
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