2018-06-20 17:35:53 +02:00
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-- Fluid Tanks
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-- Copyright (c) 2018 Evert "Diamond" Prants <evert@lunasqu.ee>
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fluid_tanks = {}
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-- Preserve fluid count in the item stack dropped
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local function preserve_metadata(pos, oldnode, oldmeta, drops)
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local buffer = fluid_lib.get_buffer_data(pos, "buffer")
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local meta = minetest.get_meta(pos)
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2018-06-20 21:05:25 +02:00
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if buffer.amount > 0 then
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2018-06-20 17:35:53 +02:00
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local node = minetest.get_node(pos)
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local ndef = minetest.registered_nodes[node.name]
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for i,stack in pairs(drops) do
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local stack_meta = stack:get_meta()
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2018-06-20 21:05:25 +02:00
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stack_meta:set_int("fluid_storage", buffer.amount)
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stack_meta:set_string("fluid", buffer.fluid)
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2018-06-21 11:54:00 +02:00
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stack_meta:set_string("description", ("%s\nContents: %s"):format(ndef.description,
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2018-06-21 11:38:16 +02:00
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fluid_lib.buffer_to_string(buffer)))
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2018-06-20 17:35:53 +02:00
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drops[i] = stack
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end
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end
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return drops
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end
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-- Retrieve fluid count from itemstack when placed
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local function after_place_node(pos, placer, itemstack, pointed_thing)
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local item_meta = itemstack:get_meta()
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local fluid_cnt = item_meta:get_int("fluid_storage")
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2018-06-20 21:05:25 +02:00
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local fluid = item_meta:get_string("fluid")
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2018-06-20 17:35:53 +02:00
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if fluid_cnt then
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local meta = minetest.get_meta(pos)
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2018-06-20 21:05:25 +02:00
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meta:set_string("buffer_fluid", fluid)
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2018-06-20 17:35:53 +02:00
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meta:set_int("buffer_fluid_storage", fluid_cnt)
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end
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minetest.get_node_timer(pos):start(0.2)
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return false
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end
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local function tank_on_timer(pos, elapsed)
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local node = minetest.get_node(pos)
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local meta = minetest.get_meta(pos)
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local buffer = fluid_lib.get_buffer_data(pos, "buffer")
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local percentile = buffer.amount / buffer.capacity
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local node_name = node.name
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local ndef = minetest.registered_nodes[node_name]
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if buffer.amount == 0 and ndef['_base_node'] then
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node_name = ndef['_base_node']
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end
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-- Select valid tank for current fluid
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if buffer.amount > 0 and not ndef['_base_node'] and buffer.fluid ~= "" then
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local fluid_name = fluid_lib.cleanse_node_name(buffer.fluid)
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local new_node_name = node.name .. "_" .. fluid_name
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local new_def = minetest.registered_nodes[new_node_name]
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if new_def then
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node_name = new_node_name
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ndef = new_def
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end
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end
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if buffer.amount == 0 and ndef['_base_node'] then
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node_name = ndef['_base_node']
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ndef = minetest.registered_nodes[node_name]
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meta:set_string("buffer_fluid", "")
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end
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-- Update infotext
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2018-06-21 11:38:16 +02:00
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meta:set_string("infotext", ("%s\nContents: %s"):format(ndef.description,
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fluid_lib.buffer_to_string(buffer)))
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2018-06-20 17:35:53 +02:00
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local param2 = math.min(percentile * 63, 63)
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-- Node changed, lets switch it
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if node_name ~= node.name or param2 ~= node.param2 then
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minetest.swap_node(pos, {name = node_name, param2 = param2, param1 = node.param1})
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end
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return false
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end
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local function create_tank_node(tankname, def, fluid_name)
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local capacity = def.capacity or 16000
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local tiles = def.tiles or {"default_glass.png", "default_glass_detail.png"}
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local desc = def.description
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local srcnode = def.srcnode or nil
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local accepts = def.accepts or true
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local groups = {cracky = 1, oddly_breakable_by_hand = 3, fluid_container = 1}
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if srcnode then
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groups["not_in_creative_inventory"] = 1
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end
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if minetest.registered_nodes[tankname] then
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return
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end
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local special_tiles = {}
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if fluid_name then
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local fdef = minetest.registered_nodes[fluid_name]
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if fdef and fdef.tiles then
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special_tiles = fdef.tiles
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end
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end
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minetest.register_node(tankname, {
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description = desc,
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drawtype = "glasslike_framed_optional",
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paramtype = "light",
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paramtype2 = "glasslikeliquidlevel",
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is_ground_content = false,
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sunlight_propagates = true,
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special_tiles = special_tiles,
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fluid_buffers = {
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buffer = {
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capacity = capacity,
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accepts = accepts,
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drainable = true,
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}
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},
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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", "Empty "..desc)
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end,
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on_timer = tank_on_timer,
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groups = groups,
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tiles = tiles,
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_base_node = srcnode,
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node_timer_seconds = 0.2,
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preserve_metadata = preserve_metadata,
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after_place_node = after_place_node,
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})
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end
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function fluid_tanks.register_tank(tankname, def)
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local accepts = def.accepts or true
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if not accepts then return end
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if not minetest.registered_nodes[tankname] then
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create_tank_node(tankname, def)
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end
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if type(accepts) == "string" then
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accepts = {accepts}
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end
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if type(accepts) == "table" then
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local new_accepts = {}
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for _,s in ipairs(accepts) do
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if s:match("^group:") then
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local grp = s:gsub("^(group:)", "")
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for f in pairs(bucket.liquids) do
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if minetest.get_item_group(f, grp) > 0 then
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new_accepts[#new_accepts + 1] = f
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end
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end
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else
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if bucket.liquids[s] then
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new_accepts[#new_accepts + 1] = s
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end
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end
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end
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accepts = new_accepts
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end
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if accepts == true then
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accepts = {}
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for _,i in pairs(bucket.liquids) do
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accepts[#accepts + 1] = i.source
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end
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end
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def.srcnode = tankname
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for _, src in ipairs(accepts) do
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local fluid = fluid_lib.cleanse_node_name(src)
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create_tank_node(tankname .. "_" .. fluid, def, src)
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end
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end
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2018-06-20 20:58:41 +02:00
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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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