101 lines
3.7 KiB
Lua
101 lines
3.7 KiB
Lua
|
|
-- Node IO System
|
|
local nodeiodef = {
|
|
node_io_can_put_liquid = function (pos, node, side)
|
|
return minetest.get_item_group(node.name, 'fluid_container') > 0
|
|
end,
|
|
node_io_can_take_liquid = function (pos, node, side)
|
|
return minetest.get_item_group(node.name, 'fluid_container') > 0
|
|
end,
|
|
-- if false, transfer node should only put and take in 1000 increments
|
|
-- inventory nodes that don't accept milibuckets should:
|
|
-- return zero in node_io_room_for_liquid() if non-1000 increment
|
|
-- return millibuckets parameter in node_io_put_liquid() if non-1000 increment
|
|
-- only return upto a 1000 increment in node_io_take_liquid()
|
|
-- transfer nodes that can put non-1000 increments should always check this or the inventory node might pretend to be full
|
|
node_io_accepts_millibuckets = function(pos, node, side) return true end,
|
|
node_io_put_liquid = function(pos, node, side, putter, liquid, millibuckets)
|
|
local buffers = fluid_lib.get_node_buffers(pos)
|
|
local leftovers = 0
|
|
for buffer,data in pairs(buffers) do
|
|
if millibuckets == 0 then break end
|
|
local didnt_fit = fluid_lib.insert_into_buffer(pos, buffer, liquid, millibuckets)
|
|
millibuckets = millibuckets - (millibuckets - didnt_fit)
|
|
leftovers = leftovers + didnt_fit
|
|
end
|
|
return leftovers
|
|
end,
|
|
-- returns millibuckets if inventory can hold entire amount, else returns amount the inventory can hold
|
|
-- use millibuckets=1 to check if not full, then call put_liquid() with actual amount to transfer
|
|
-- use millibuckets=1000 with room_for_liquid() and put_liquid() to only insert full buckets
|
|
node_io_room_for_liquid = function(pos, node, side, liquid, millibuckets)
|
|
local buffers = fluid_lib.get_node_buffers(pos)
|
|
local insertable = 0
|
|
for buffer,data in pairs(buffers) do
|
|
local insert = fluid_lib.can_insert_into_buffer(pos, buffer, liquid, millibuckets)
|
|
if insert > 0 then
|
|
insertable = insert
|
|
break
|
|
end
|
|
end
|
|
return insertable
|
|
end,
|
|
|
|
-- returns {name:string, millibuckets:int} with <= want_millibuckets or nil if inventory is empty or doesn't have want_liquid
|
|
-- want_liquid should be the name of a source liquid (in bucket.liquids of bucket mod)
|
|
node_io_take_liquid = function(pos, node, side, taker, want_liquid, want_millibuckets)
|
|
local buffers = fluid_lib.get_node_buffers(pos)
|
|
local took = 0
|
|
local name = ""
|
|
for buffer,data in pairs(buffers) do
|
|
local bfdata = fluid_lib.get_buffer_data(pos, buffer)
|
|
local storage = bfdata.amount
|
|
local fluid = bfdata.fluid
|
|
if (fluid == want_liquid or want_liquid == "") and storage >= want_millibuckets then
|
|
name, took = fluid_lib.take_from_buffer(pos, buffer, want_millibuckets)
|
|
if took > 0 then break end
|
|
end
|
|
end
|
|
return {name = name, millibuckets = took}
|
|
end,
|
|
|
|
node_io_get_liquid_size = function (pos, node, side)
|
|
-- this is always 1 unless inventory can hold multiple liquid types
|
|
local cnt = 0
|
|
local bfs = fluid_lib.get_node_buffers(pos)
|
|
for _ in pairs(bfs) do
|
|
cnt = cnt + 1
|
|
end
|
|
return cnt
|
|
end,
|
|
|
|
node_io_get_liquid_name = function(pos, node, side, index)
|
|
local cnt = {}
|
|
local bfs = fluid_lib.get_node_buffers(pos)
|
|
for buf in pairs(bfs) do
|
|
cnt[#cnt + 1] = buf
|
|
end
|
|
if not cnt[index] then return ItemStack(nil) end
|
|
local meta = minetest.get_meta(pos)
|
|
|
|
return meta:get_string(cnt[index] .. "_fluid")
|
|
end,
|
|
|
|
node_io_get_liquid_stack = function(pos, node, side, index)
|
|
local cnt = {}
|
|
local bfs = fluid_lib.get_node_buffers(pos)
|
|
for buf in pairs(bfs) do
|
|
cnt[#cnt + 1] = buf
|
|
end
|
|
if not cnt[index] then return ItemStack(nil) end
|
|
local meta = minetest.get_meta(pos)
|
|
|
|
return ItemStack(meta:get_string(cnt[index] .. "_fluid") .. " " ..
|
|
meta:get_int(cnt[index] .. "_fluid_storage"))
|
|
end,
|
|
}
|
|
|
|
function fluid_lib.register_node(nodename)
|
|
minetest.override_item(nodename, nodeiodef)
|
|
end
|