fluid_lib now implements transfer ducts
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README.md
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README.md
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@ -1,5 +1,6 @@
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# Universal Fluid API
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This API adds support for `fluid_buffers` inside nodes. This means that nodes can contain fluid.
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This API adds support for `fluid_buffers` inside nodes. This means that nodes can contain fluid. Simple fluid transfer is also implemented in `fluid_transfer`.
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This mod implements [node_io](https://github.com/auouymous/node_io). Note that while it is recommended that you install this mod also, it is not required in order to function. **Enable ALL the mods provided by this "modpack"!**
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## How to Use
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1. Add the node to the `fluid_container` group.
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@ -18,6 +19,10 @@ This API adds support for `fluid_buffers` inside nodes. This means that nodes ca
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* **buffer_name_fluid** = `string` - Source node of the fluid.
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* **buffer_name_fluid_storage** = `int` - How much fluid there is in this buffer.
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4. Register your node **(DO NOT MISS THIS STEP! TRANSFER WILL NOT WORK OTHERWISE!)**.
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Just call `fluid_lib.register_node(nodename)`.
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## API
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All numbers are in **milli-buckets** (1 bucket = 1000 mB).
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@ -51,6 +56,17 @@ All numbers are in **milli-buckets** (1 bucket = 1000 mB).
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* `fluid_lib.take_from_buffer(pos, buffer, count)`
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* Actually takes the fluid. On success, returns the source block that was taken and how much was actually taken.
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* `fluid_lib.register_node(nodename)`
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* Registers a node that has fluid buffers. This is IMPORTANT!
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* `fluid_lib.register_extractor_node(nodename, nodedef)`
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* Registers a node that can extract fluid from another node (in front of self) and put it into ducts.
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* `fluid_pump_capacity` variable in nodedef determines how much fluid (in mB) this node can "pump" every second.
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* `fluid_lib.register_transfer_node(nodename, nodedef)`
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* Registers a node that can transfer fluids. This is effectively a fluid duct.
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* `duct_density` variable in nodedef determines the diameter of the duct (custom node_box is created).
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* `bucket.register_liquid(source, flowing, itemname, inventory_image, name, groups, force_renew)`
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* Works exactly the same as the default `bucket` mod, except it adds callbacks to insert/take fluid from nodes.
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* `inventory_image` can be a **ColorString**.
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@ -1,6 +1,8 @@
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-- Fluid Tanks
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-- Copyright (c) 2018 Evert "Diamond" Prants <evert@lunasqu.ee>
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local modpath = minetest.get_modpath(minetest.get_current_modname())
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fluid_tanks = {}
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-- Preserve fluid count in the item stack dropped
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@ -199,8 +201,4 @@ function fluid_tanks.register_tank(tankname, def)
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end
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end
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fluid_tanks.register_tank("fluid_tanks:tank", {
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description = "Fluid Tank",
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capacity = 16000,
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accepts = true,
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})
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dofile(modpath.."/register.lua")
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@ -0,0 +1,15 @@
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fluid_tanks.register_tank("fluid_tanks:tank", {
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description = "Fluid Tank",
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capacity = 8000,
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accepts = true,
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})
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minetest.register_craft({
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output = "fluid_tanks:tank",
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recipe = {
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{"default:glass", "default:glass", "default:glass"},
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{"default:glass", "default:steel_ingot", "default:glass"},
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{"default:glass", "default:glass", "default:glass"},
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}
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})
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@ -0,0 +1,104 @@
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-- Nodes for transferring fluids
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-- All units are in millibuckets (1 bucket)
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-- This is the node that takes fluid from another node.
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function fluid_lib.register_extractor_node(nodename, nodedef)
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if not nodedef.groups then
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nodedef.groups = {}
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end
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nodedef.groups["fluid_transport_source"] = 1
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nodedef.paramtype2 = "facedir"
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nodedef.legacy_facedir_simple = true
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nodedef.on_timer = fluid_lib.transfer_timer_tick
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local orig_construct = nodedef.on_construct
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nodedef.on_construct = function (pos)
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local meta = minetest.get_meta(pos)
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meta:set_int("fluid_store", 0)
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meta:set_string("fluid", "")
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fluid_lib.refresh_node(pos)
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if orig_construct then
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orig_construct(pos)
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end
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end
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nodedef.on_punch = function (pos, node, puncher, pointed_thing)
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minetest.get_node_timer(pos):start(1.0)
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minetest.node_punch(pos, node, puncher, pointed_thing)
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end
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-- Default transfer capacity
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if not nodedef.fluid_pump_capacity then
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nodedef.fluid_pump_capacity = 1000
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end
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minetest.register_node(nodename, nodedef)
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end
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-- This is the node that allows for fluid transfer.
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function fluid_lib.register_transfer_node(nodename, nodedef)
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if not nodedef.groups then
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nodedef.groups = {}
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end
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nodedef.groups["fluid_transport"] = 1
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-- Duct node density
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local cd = 1/7
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if nodedef.duct_density then
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cd = math.abs(nodedef.duct_density)
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nodedef.duct_density = nil
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end
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-- Default values, including the nodebox
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local defaults = {
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drawtype = "nodebox",
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node_box = {
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type = "connected",
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fixed = {
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{-cd, -cd, -cd, cd, cd, cd}
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},
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connect_front = {
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{-cd, -cd, -1/2, cd, cd, -cd}
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},
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connect_back = {
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{-cd, -cd, cd, cd, cd, 1/2}
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},
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connect_top = {
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{-cd, cd, -cd, cd, 1/2, cd}
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},
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connect_bottom = {
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{-cd, -1/2, -cd, cd, -cd, cd}
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},
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connect_left = {
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{-1/2, -cd, -cd, cd, cd, cd}
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},
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connect_right = {
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{cd, -cd, -cd, 1/2, cd, cd}
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},
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},
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paramtype = "light",
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connect_sides = { "top", "bottom", "front", "left", "back", "right" },
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is_ground_content = false,
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connects_to = {
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"group:fluid_transport",
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"group:fluid_transport_source",
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"group:fluid_container"
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},
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}
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for k,v in pairs(defaults) do
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if not nodedef[k] then
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nodedef[k] = v
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end
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end
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nodedef.on_construct = fluid_lib.refresh_node
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nodedef.after_destruct = fluid_lib.refresh_node
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minetest.register_node(nodename, nodedef)
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end
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@ -0,0 +1,20 @@
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-- Duct
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minetest.register_craft({
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output = "fluid_transfer:fluid_duct 8",
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recipe = {
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{"default:glass", "default:glass", "default:glass"},
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{"", "", ""},
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{"default:glass", "default:glass", "default:glass"},
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}
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})
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-- Pump
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minetest.register_craft({
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output = "fluid_transfer:fluid_transfer_pump",
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recipe = {
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{"", "fluid_transfer:fluid_duct", ""},
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{"default:glass", "default:mese_crystal", "default:glass"},
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{"default:stone", "default:stone", "default:stone"},
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}
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})
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@ -0,0 +1,2 @@
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fluid_lib
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node_io?
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@ -0,0 +1,16 @@
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-- Universal Fluid API implementation
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-- Copyright (c) 2018 Evert "Diamond" Prants <evert@lunasqu.ee>
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local modpath = minetest.get_modpath(minetest.get_current_modname())
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-- Transfer network
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dofile(modpath.."/network.lua")
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-- API for ducts and pumps
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dofile(modpath.."/api.lua")
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-- Simple duct and pump
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dofile(modpath.."/register.lua")
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-- Crafting recipes
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dofile(modpath.."/crafting.lua")
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@ -0,0 +1,3 @@
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name = fluid_transfer
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depends = fluid_lib
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optional_depends = node_io
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@ -0,0 +1,185 @@
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o Node
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s off
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@ -0,0 +1,252 @@
|
|||
local node_io_present = minetest.get_modpath("node_io") ~= nil
|
||||
-- Network graphs are built eminating from provider nodes.
|
||||
-- TODO: Caching
|
||||
|
||||
---------------------
|
||||
-- Graph Functions --
|
||||
---------------------
|
||||
|
||||
local function flatten(map)
|
||||
local list = {}
|
||||
for key, value in pairs(map) do
|
||||
list[#list + 1] = value
|
||||
end
|
||||
return list
|
||||
end
|
||||
|
||||
local function get_node_property(meta, pos, prop)
|
||||
local value = meta:get_int(prop)
|
||||
|
||||
if value == 0 or value == nil then
|
||||
local nname = minetest.get_node(pos).name
|
||||
local ndef = minetest.registered_nodes[nname]
|
||||
value = ndef[prop]
|
||||
end
|
||||
|
||||
if not value then return 0 end
|
||||
|
||||
return value
|
||||
end
|
||||
|
||||
local function face_front(pos, fd)
|
||||
local back = minetest.facedir_to_dir(fd)
|
||||
local front = table.copy(back)
|
||||
|
||||
front.x = front.x * -1 + pos.x
|
||||
front.y = front.y * -1 + pos.y
|
||||
front.z = front.z * -1 + pos.z
|
||||
|
||||
return front
|
||||
end
|
||||
|
||||
local function clear_networks_from_node(pos)
|
||||
local meta = minetest.get_meta(pos)
|
||||
meta:set_string("network_id", "")
|
||||
end
|
||||
|
||||
local function add_node(nodes, pos, pnodeid)
|
||||
local node_id = minetest.hash_node_position(pos)
|
||||
if nodes[node_id] then
|
||||
return false
|
||||
end
|
||||
nodes[node_id] = pos
|
||||
return true
|
||||
end
|
||||
|
||||
local function add_duct_node(nodes, pos, pnodeid, queue)
|
||||
if add_node(nodes, pos, pnodeid) then
|
||||
queue[#queue + 1] = pos
|
||||
end
|
||||
end
|
||||
|
||||
local function check_node(targets, all_nodes, pos, p_pos, pnodeid, queue)
|
||||
local node = minetest.get_node(pos)
|
||||
local meta = minetest.get_meta(pos)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
|
||||
if minetest.get_item_group(node.name, "fluid_transport") > 0 then
|
||||
add_duct_node(all_nodes, pos, pnodeid, queue)
|
||||
return
|
||||
end
|
||||
|
||||
if not ndef['node_io_can_put_liquid'] or not ndef['node_io_can_put_liquid'](pos, node, "") then
|
||||
return
|
||||
end
|
||||
|
||||
add_node(targets, pos, pnodeid)
|
||||
end
|
||||
|
||||
local function traverse_network(targets, all_nodes, pos, p_pos, pnodeid, queue)
|
||||
local positions = {
|
||||
{x=pos.x+1, y=pos.y, z=pos.z},
|
||||
{x=pos.x-1, y=pos.y, z=pos.z},
|
||||
{x=pos.x, y=pos.y+1, z=pos.z},
|
||||
{x=pos.x, y=pos.y-1, z=pos.z},
|
||||
{x=pos.x, y=pos.y, z=pos.z+1},
|
||||
{x=pos.x, y=pos.y, z=pos.z-1}}
|
||||
for _, cur_pos in pairs(positions) do
|
||||
check_node(targets, all_nodes, cur_pos, p_pos, pnodeid, queue)
|
||||
end
|
||||
end
|
||||
|
||||
local function fluid_targets(p_pos, pos)
|
||||
local provider = minetest.get_node(p_pos)
|
||||
local pnodeid = minetest.pos_to_string(p_pos)
|
||||
|
||||
local targets = {}
|
||||
local queue = {}
|
||||
local all_nodes = {}
|
||||
|
||||
local node = minetest.get_node(pos)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
if node and minetest.get_item_group(node.name, "fluid_transport") > 0 then
|
||||
add_duct_node(all_nodes, pos, pnodeid, queue)
|
||||
elseif node and ndef['node_io_can_put_liquid'] and ndef['node_io_can_put_liquid'](pos, node, "") then
|
||||
queue = {p_pos}
|
||||
end
|
||||
|
||||
while next(queue) do
|
||||
local to_visit = {}
|
||||
for _, posi in ipairs(queue) do
|
||||
traverse_network(targets, all_nodes, posi, p_pos, pnodeid, to_visit)
|
||||
end
|
||||
queue = to_visit
|
||||
end
|
||||
|
||||
targets = flatten(targets)
|
||||
all_nodes = flatten(all_nodes)
|
||||
|
||||
return targets
|
||||
end
|
||||
|
||||
function fluid_lib.transfer_timer_tick(pos, elapsed)
|
||||
local refresh = true
|
||||
local node = minetest.get_node_or_nil(pos)
|
||||
|
||||
if not node then
|
||||
return false
|
||||
end
|
||||
|
||||
local meta = minetest.get_meta(pos)
|
||||
local targets = {}
|
||||
|
||||
-- Only allow the node directly behind to be a start of a network
|
||||
local tpos = vector.add(minetest.facedir_to_dir(node.param2), pos)
|
||||
local tnode = minetest.get_node(tpos)
|
||||
local ndef = minetest.registered_nodes[tnode.name]
|
||||
if minetest.get_item_group(tnode.name, "fluid_transport") == 0 and
|
||||
(not ndef['node_io_can_put_liquid'] or not ndef['node_io_can_put_liquid'](tpos, tnode, "")) then
|
||||
minetest.forceload_free_block(pos)
|
||||
return
|
||||
end
|
||||
|
||||
-- Retrieve network
|
||||
targets = fluid_targets(pos, tpos)
|
||||
|
||||
-- No targets, don't proceed
|
||||
if #targets == 0 then
|
||||
return true
|
||||
end
|
||||
|
||||
-- Begin transfer
|
||||
local srcpos = face_front(pos, node.param2)
|
||||
local srcnode = minetest.get_node(srcpos)
|
||||
|
||||
-- Make sure source node is not air
|
||||
if not srcnode or srcnode.name == "air" then
|
||||
return true
|
||||
end
|
||||
|
||||
local srcdef = minetest.registered_nodes[srcnode.name]
|
||||
|
||||
-- Make sure source node is a registered fluid container
|
||||
if not srcdef['node_io_can_take_liquid'] then
|
||||
return false
|
||||
end
|
||||
|
||||
local c = srcdef.node_io_can_take_liquid(srcpos, srcnode, "")
|
||||
if not c then return false end
|
||||
|
||||
local srcmeta = minetest.get_meta(srcpos)
|
||||
local srcdef = minetest.registered_nodes[srcnode.name]
|
||||
local fl_size = srcdef.node_io_get_liquid_size(srcpos, srcnode, "")
|
||||
local buffers = {}
|
||||
for i = 1, fl_size do
|
||||
buffers[i] = srcdef.node_io_get_liquid_name(srcpos, srcnode, "", i)
|
||||
end
|
||||
if not #buffers then return true end
|
||||
|
||||
-- Limit the amount of fluid pumped per cycle
|
||||
local pcapability = get_node_property(meta, pos, "fluid_pump_capacity")
|
||||
local pumped = 0
|
||||
|
||||
-- Transfer some fluid here
|
||||
for _,pos in pairs(targets) do
|
||||
if not vector.equals(pos, srcpos) then
|
||||
if pumped >= pcapability then break end
|
||||
local destnode = minetest.get_node(pos)
|
||||
local destdef = minetest.registered_nodes[destnode.name]
|
||||
local pp = nil
|
||||
|
||||
if destdef['node_io_can_put_liquid'] then
|
||||
if destdef.node_io_can_put_liquid(pos, destnode, "") then
|
||||
pp = {}
|
||||
local fl_size = destdef.node_io_get_liquid_size(pos, destnode, "")
|
||||
for i = 1, fl_size do
|
||||
pp[i] = destdef.node_io_get_liquid_name(pos, destnode, "", i)
|
||||
end
|
||||
if not #pp then pp = nil end
|
||||
end
|
||||
end
|
||||
|
||||
local changed = false
|
||||
|
||||
if pp ~= nil then
|
||||
for bindex,bfluid in pairs(pp) do
|
||||
for aindex,afluid in pairs(buffers) do
|
||||
if pumped >= pcapability then break end
|
||||
if (afluid == bfluid or bfluid == "") then
|
||||
local idef = destdef.node_io_room_for_liquid(pos, destnode, "", afluid, pcapability)
|
||||
if idef > 0 then
|
||||
local fluidcount = srcdef.node_io_get_liquid_stack(srcpos, srcnode, "", aindex):get_count()
|
||||
local defc = math.min(fluidcount, idef)
|
||||
local defi = srcdef.node_io_take_liquid(srcpos, srcnode, "", nil, afluid, defc)
|
||||
if defi.millibuckets > 0 then
|
||||
local lo = destdef.node_io_put_liquid(pos, destnode, "", nil, afluid, defi.millibuckets)
|
||||
pumped = pumped + (defi.millibuckets - lo)
|
||||
changed = true
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
if changed then
|
||||
minetest.get_node_timer(srcpos):start(1.0)
|
||||
minetest.get_node_timer(pos):start(1.0)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
return refresh
|
||||
end
|
||||
|
||||
function fluid_lib.refresh_node(pos)
|
||||
local t = minetest.get_node_timer(pos)
|
||||
if t and not t:is_started() then
|
||||
t:start(1.0)
|
||||
end
|
||||
|
||||
if node_io_present then
|
||||
node_io.update_neighbors(pos)
|
||||
end
|
||||
end
|
||||
|
||||
minetest.register_lbm({
|
||||
label = "Fluid Transfer Tick",
|
||||
name = "fluid_transfer:fluid_transfer_tick",
|
||||
nodenames = {"group:fluid_transport_source", "group:fluid_pump"},
|
||||
run_at_every_load = true,
|
||||
action = fluid_lib.refresh_node,
|
||||
})
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
|
||||
fluid_lib.register_extractor_node("fluid_transfer:fluid_transfer_pump", {
|
||||
description = "Fluid Transfer Pump\nPunch to start pumping",
|
||||
tiles = {"fluid_transfer_pump.png"},
|
||||
drawtype = "mesh",
|
||||
mesh = "fluid_transfer_pump.obj",
|
||||
groups = {oddly_breakable_by_hand = 1, cracky = 1},
|
||||
paramtype = "light",
|
||||
selection_box = {
|
||||
type = "fixed",
|
||||
fixed = {
|
||||
{-0.4375, -0.4375, -0.5000, 0.4375, 0.4375, 0.000},
|
||||
{-0.1875, -0.1875, 0.000, 0.1875, 0.1875, 0.5000}
|
||||
}
|
||||
}
|
||||
})
|
||||
|
||||
fluid_lib.register_transfer_node("fluid_transfer:fluid_duct", {
|
||||
description = "Fluid Duct",
|
||||
tiles = {"fluid_transfer_duct.png"},
|
||||
groups = {oddly_breakable_by_hand = 1, cracky = 1}
|
||||
})
|
||||
|
||||
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Reference in New Issue