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Node IO API Support (experimental)
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fluid_lib/depends.txt
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fluid_lib/depends.txt
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node_io?
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@ -44,3 +44,4 @@ function fluid_lib.comma_value(n) -- credit http://richard.warburton.it
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end
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end
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dofile(modpath.."/buffer.lua")
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dofile(modpath.."/buffer.lua")
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dofile(modpath.."/nodeio.lua")
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@ -1 +1,2 @@
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name = fluid_lib
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name = fluid_lib
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optional_depends = node_io
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98
fluid_lib/nodeio.lua
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fluid_lib/nodeio.lua
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-- Node IO System
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local nodeiodef = {
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node_io_can_put_liquid = function (pos, node, side)
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return ele.helpers.get_item_group(node.name, 'fluid_container')
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end,
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node_io_can_take_liquid = function (pos, node, side)
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return ele.helpers.get_item_group(node.name, 'fluid_container')
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end,
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-- if false, transfer node should only put and take in 1000 increments
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-- inventory nodes that don't accept milibuckets should:
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-- return zero in node_io_room_for_liquid() if non-1000 increment
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-- return millibuckets parameter in node_io_put_liquid() if non-1000 increment
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-- only return upto a 1000 increment in node_io_take_liquid()
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-- transfer nodes that can put non-1000 increments should always check this or the inventory node might pretend to be full
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node_io_accepts_millibuckets = function(pos, node, side) return true end,
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node_io_put_liquid = function(pos, node, side, putter, liquid, millibuckets)
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local buffers = fluid_lib.get_node_buffers(pos)
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local leftovers = 0
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for buffer,data in pairs(buffers) do
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if millibuckets == 0 then break end
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local didnt_fit = fluid_lib.insert_into_buffer(pos, buffer, liquid, millibuckets)
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millibuckets = millibuckets - (millibuckets - didnt_fit)
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leftovers = leftovers + didnt_fit
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end
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return leftovers
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end,
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-- returns millibuckets if inventory can hold entire amount, else returns amount the inventory can hold
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-- use millibuckets=1 to check if not full, then call put_liquid() with actual amount to transfer
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-- use millibuckets=1000 with room_for_liquid() and put_liquid() to only insert full buckets
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node_io_room_for_liquid = function(pos, node, side, liquid, millibuckets)
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local buffers = fluid_lib.get_node_buffers(pos)
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local insertable = 0
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for buffer,data in pairs(buffers) do
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local insert = fluid_lib.can_insert_into_buffer(pos, buffer, liquid, millibuckets)
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if insert > 0 then
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insertable = insert
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break
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end
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end
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return insertable
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end,
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-- returns {name:string, millibuckets:int} with <= want_millibuckets or nil if inventory is empty or doesn't have want_liquid
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-- want_liquid should be the name of a source liquid (in bucket.liquids of bucket mod)
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node_io_take_liquid = function(pos, node, side, taker, want_liquid, want_millibuckets)
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local buffers = fluid_lib.get_node_buffers(pos)
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local took = 0
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local name = ""
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for buffer,data in pairs(buffers) do
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local bfdata = fluid_lib.get_buffer_data(pos, buffer)
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local storage = bfdata.amount
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local fluid = bfdata.fluid
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if (fluid == want_liquid or want_liquid == "") and storage >= want_millibuckets then
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name,took = fluid_lib.take_from_buffer(pos, buffer, want_millibuckets)
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if took > 0 then break end
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end
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end
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return {name = name, millibuckets = took}
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end,
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node_io_get_liquid_size = function (pos, node, side)
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-- this is always 1 unless inventory can hold multiple liquid types
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local cnt = 0
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local bfs = fluid_lib.get_node_buffers(pos)
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for _ in pairs(bfs) do
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cnt = cnt + 1
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end
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return cnt
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end,
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node_io_get_liquid_name = function(pos, node, side, index)
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local cnt = {}
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local bfs = fluid_lib.get_node_buffers(pos)
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for buf in pairs(bfs) do
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cnt[#cnt + 1] = buf
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end
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local meta = minetest.get_meta(pos)
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return meta:get_string(cnt[index] .. "_fluid")
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end,
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node_io_get_liquid_stack = function(pos, node, side, index)
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local cnt = {}
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local bfs = fluid_lib.get_node_buffers(pos)
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for buf in pairs(bfs) do
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cnt[#cnt + 1] = buf
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end
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local meta = minetest.get_meta(pos)
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return ItemStack(meta:get_string(cnt[index] .. "_fluid") .. " " ..
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meta:get_int(cnt[index] .. "_fluid_storage"))
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end,
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}
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function fluid_lib.register_node(nodename)
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minetest.override_item(nodename, nodeiodef)
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end
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@ -144,6 +144,12 @@ local function create_tank_node(tankname, def, fluid_name)
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preserve_metadata = preserve_metadata,
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preserve_metadata = preserve_metadata,
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after_place_node = after_place_node,
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after_place_node = after_place_node,
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})
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})
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if tankname:match("^:") then
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tankname = tankname:sub(2)
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end
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fluid_lib.register_node(tankname)
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end
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end
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function fluid_tanks.register_tank(tankname, def)
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function fluid_tanks.register_tank(tankname, def)
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