mirror of
https://github.com/sirrobzeroone/elepower.git
synced 2024-09-12 07:38:29 +02:00
193 lines
5.1 KiB
Lua
193 lines
5.1 KiB
Lua
-- Network graphs are built eminating from provider nodes.
|
|
-- TODO: Caching
|
|
|
|
---------------------
|
|
-- Graph Functions --
|
|
---------------------
|
|
|
|
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)
|
|
ele.helpers.get_or_load_node(pos)
|
|
local node = minetest.get_node(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
|
|
if ele.helpers.get_item_group(node.name, "elefluid_transport") then
|
|
add_duct_node(all_nodes, pos, pnodeid, queue)
|
|
return
|
|
end
|
|
|
|
if not ele.helpers.get_item_group(node.name, "fluid_container") 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)
|
|
if node and ele.helpers.get_item_group(node.name, "elefluid_transport") then
|
|
add_duct_node(all_nodes, pos, pnodeid, queue)
|
|
elseif node and ele.helpers.get_item_group(node.name, "fluid_container") 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 = ele.helpers.flatten(targets)
|
|
all_nodes = ele.helpers.flatten(all_nodes)
|
|
|
|
return targets
|
|
end
|
|
|
|
function elefluid.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 tname = minetest.get_node(tpos).name
|
|
if not ele.helpers.get_item_group(tname, "elefluid_transport") and
|
|
not ele.helpers.get_item_group(tname, "fluid_container") 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 = ele.helpers.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
|
|
|
|
-- Make sure source node is a registered fluid container
|
|
if not ele.helpers.get_item_group(srcnode.name, "fluid_container") then
|
|
return true
|
|
end
|
|
|
|
local srcmeta = minetest.get_meta(srcpos)
|
|
local srcdef = minetest.registered_nodes[srcnode.name]
|
|
local buffers = fluid_lib.get_node_buffers(srcpos)
|
|
if not buffers then return true end
|
|
|
|
-- Limit the amount of fluid pumped per cycle
|
|
local pcapability = ele.helpers.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 pp = fluid_lib.get_node_buffers(pos)
|
|
|
|
local changed = false
|
|
|
|
if pp ~= nil then
|
|
for name in pairs(pp) do
|
|
for bname in pairs(buffers) do
|
|
if pumped >= pcapability then break end
|
|
local buffer_data = fluid_lib.get_buffer_data(srcpos, bname)
|
|
local target_data = fluid_lib.get_buffer_data(pos, name)
|
|
|
|
if (target_data.fluid == buffer_data.fluid or target_data.fluid == "") and
|
|
buffer_data.fluid ~= "" and buffer_data.amount > 0 and
|
|
(buffer_data.drainable == nil or buffer_data.drainable == true) and
|
|
fluid_lib.buffer_accepts_fluid(pos, name, buffer_data.fluid) then
|
|
|
|
if fluid_lib.can_insert_into_buffer(pos, name, buffer_data.fluid, pcapability) > 0 then
|
|
local res_f, count = fluid_lib.take_from_buffer(srcpos, bname, pcapability)
|
|
if count > 0 then
|
|
fluid_lib.insert_into_buffer(pos, name, res_f, count)
|
|
pumped = pumped + count
|
|
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 elefluid.refresh_node(pos)
|
|
minetest.get_node_timer(pos):start(1.0)
|
|
return
|
|
end
|
|
|
|
minetest.register_lbm({
|
|
label = "Fluid Transfer Tick",
|
|
name = "elepower_fapi:fluid_transfer_tick",
|
|
nodenames = {"group:elefluid_transport_source"},
|
|
run_at_every_load = true,
|
|
action = elefluid.refresh_node,
|
|
})
|