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pipeworks/autoplace.lua

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--define the functions from https://github.com/minetest/minetest/pull/834 while waiting for the devs to notice it
local function dir_to_facedir(dir, is6d)
--account for y if requested
if is6d and math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then
--from above
if dir.y < 0 then
if math.abs(dir.x) > math.abs(dir.z) then
if dir.x < 0 then
return 19
else
return 13
end
else
if dir.z < 0 then
return 10
else
return 4
end
end
--from below
else
if math.abs(dir.x) > math.abs(dir.z) then
if dir.x < 0 then
return 15
else
return 17
end
else
if dir.z < 0 then
return 6
else
return 8
end
end
end
--otherwise, place horizontally
elseif math.abs(dir.x) > math.abs(dir.z) then
if dir.x < 0 then
return 3
else
return 1
end
else
if dir.z < 0 then
return 2
else
return 0
end
end
end
local function facedir_to_dir(facedir)
--a table of possible dirs
return ({{x=0, y=0, z=1},
{x=1, y=0, z=0},
{x=0, y=0, z=-1},
{x=-1, y=0, z=0},
{x=0, y=-1, z=0},
{x=0, y=1, z=0}})
--indexed into by a table of correlating facedirs
[({[0]=1, 2, 3, 4,
5, 2, 6, 4,
6, 2, 5, 4,
1, 5, 3, 6,
1, 6, 3, 5,
1, 4, 3, 2})
--indexed into by the facedir in question
[facedir]]
end
-- autorouting for pipes
function pipe_scanforobjects(pos)
pipe_autoroute({ x=pos.x-1, y=pos.y , z=pos.z }, "_loaded")
pipe_autoroute({ x=pos.x+1, y=pos.y , z=pos.z }, "_loaded")
pipe_autoroute({ x=pos.x , y=pos.y-1, z=pos.z }, "_loaded")
pipe_autoroute({ x=pos.x , y=pos.y+1, z=pos.z }, "_loaded")
pipe_autoroute({ x=pos.x , y=pos.y , z=pos.z-1 }, "_loaded")
pipe_autoroute({ x=pos.x , y=pos.y , z=pos.z+1 }, "_loaded")
pipe_autoroute(pos, "_loaded")
pipe_autoroute({ x=pos.x-1, y=pos.y , z=pos.z }, "_empty")
pipe_autoroute({ x=pos.x+1, y=pos.y , z=pos.z }, "_empty")
pipe_autoroute({ x=pos.x , y=pos.y-1, z=pos.z }, "_empty")
pipe_autoroute({ x=pos.x , y=pos.y+1, z=pos.z }, "_empty")
pipe_autoroute({ x=pos.x , y=pos.y , z=pos.z-1 }, "_empty")
pipe_autoroute({ x=pos.x , y=pos.y , z=pos.z+1 }, "_empty")
pipe_autoroute(pos, "_empty")
end
function pipe_autoroute(pos, state)
nctr = minetest.get_node(pos)
if (string.find(nctr.name, "pipeworks:pipe_") == nil) then return end
pipes_scansurroundings(pos)
nsurround = pxm..pxp..pym..pyp..pzm..pzp
if nsurround == "000000" then nsurround = "110000" end
minetest.add_node(pos, { name = "pipeworks:pipe_"..nsurround..state })
end
-- autorouting for pneumatic tubes
function tube_scanforobjects(pos)
if pos == nil then return end
tube_autoroute({ x=pos.x-1, y=pos.y , z=pos.z })
tube_autoroute({ x=pos.x+1, y=pos.y , z=pos.z })
tube_autoroute({ x=pos.x , y=pos.y-1, z=pos.z })
tube_autoroute({ x=pos.x , y=pos.y+1, z=pos.z })
tube_autoroute({ x=pos.x , y=pos.y , z=pos.z-1 })
tube_autoroute({ x=pos.x , y=pos.y , z=pos.z+1 })
tube_autoroute(pos)
end
function in_table(table,element)
for _,el in ipairs(table) do
if el==element then return true end
end
return false
end
function is_tube(nodename)
return in_table(tubenodes,nodename)
end
if pipeworks == nil then
pipeworks = {}
end
-- this was tested experimentally, because I can't the whole bit arithematic
-- with these facingRight means "We're facing the right side of whatever it is"
pipeworks.connects = {
-- a filter's output is on the right, input on the left
facingLeft = function (i,param2)
-- measured with a mese filter
if i == 1 then
return param2 == 2 or param2 == 6 or param2 == 10 or param2 == 20
elseif i == 2 then
return param2 == 0 or param2 == 4 or param2 == 8 or param2 == 22
elseif i == 3 then
return param2 == 7 or param2 == 9 or param2 == 12 or param2 == 18
elseif i == 4 then
return param2 == 5 or param2 == 11 or param2 == 14 or param2 == 16
elseif i == 5 then
return param2 == 1 or param2 == 13 or param2 == 17 or param2 == 21
elseif i == 6 then
return param2 == 3 or param2 == 15 or param2 == 19
end
end,
facingRight = function (i,param2)
-- measured with a mese filter
if i == 1 then
return param2 == 0 or param2 == 4 or param2 == 8 or param2 == 22
elseif i == 2 then
return param2 == 2 or param2 == 6 or param2 == 10 or param2 == 20
elseif i == 3 then
return param2 == 5 or param2 == 11 or param2 == 14 or param2 == 16
elseif i == 4 then
return param2 == 7 or param2 == 9 or param2 == 12 or param2 == 18
elseif i == 5 then
return param2 == 3 or param2 == 15 or param2 == 19
elseif i == 6 then
return param2 == 1 or param2 == 13 or param2 == 17 or param2 == 21
end
end,
facingFront = function (i,param2)
-- measured with a chest and a technic:nodebreaker
if i == 1 then
return param2 == 3 or param2 == 7 or param2 == 11 or param2 == 21
elseif i == 2 then
return param2 == 1 or param2 == 5 or param2 == 9
elseif i == 3 then
return param2 == 4 or param2 == 10 or param2 == 14 or param2 == 19
elseif i == 4 then
return param2 == 6 or param2 == 8 or param2 == 15 or param2 == 17
elseif i == 5 then
return param2 == 14 or param2 == 18 or param2 == 22 or param2 == 2
elseif i == 6 then
return param2 == 12 or param2 == 16 or param2 == 20 or param2 == 0
end
end,
facingSide = function (i,param2)
-- aka not top or bottom
-- measured with a chair
if i == 1 or i == 2 then
return not (param2 >= 12 and param2 <= 19)
elseif i == 3 or i == 4 then
return not ((param2 >= 0 and param2 < 4) or (param2 >= 20 and param2 <= 22))
elseif i == 5 or i == 6 then
return not (param2 >= 4 and param2 <= 11)
end
end,
facingTop = function(i,param2)
-- measured with a chair
if i == 1 then
return param2 >= 16 and param2 <= 20
elseif i == 2 then
return param2 >= 12 and param2 < 16
elseif i == 3 then
return param2 >= 0 and param2 < 4
elseif i == 4 then
return param2 >= 21 and param2 < 23
elseif i == 5 then
return param2 >= 4 and param2 < 8
elseif i == 6 then
return param2 >= 8 and param2 < 12
-- else error bad value for i
end
end
}
--a function for determining which side of the node we are on
local function nodeside(node, tubedir)
--get a vector pointing back
local backdir = facedir_to_dir(node.param2)
--check whether the vector is equivalent to the tube direction; if it is, the tube's on the backside
if backdir.x == tubedir.x and backdir.y == tubedir.y and backdir.z == tubedir.z then
return "back"
end
--check whether the vector is antiparallel with the tube direction; that indicates the front
if backdir.x == -tubedir.x and backdir.y == -tubedir.y and backdir.z == -tubedir.z then
return "front"
end
--facedir is defined in terms of the top-bottom axis of the node; we'll take advantage of that
local topdir = ({[0]={x=0, y=1, z=0},
{x=0, y=0, z=1},
{x=0, y=0, z=-1},
{x=1, y=0, z=0},
{x=-1, y=0, z=0},
{x=0, y=-1, z=0}})[math.floor(node.param2/4)]
--is this the top?
if topdir.x == tubedir.x and topdir.y == tubedir.y and topdir.z == tubedir.z then
return "top"
end
--or the bottom?
if topdir.x == -tubedir.x and topdir.y == -tubedir.y and topdir.z == -tubedir.z then
return "bottom"
end
--we shall apply some maths to obtain the right-facing vector
local rightdir = {x=topdir.y*backdir.z - backdir.y*topdir.z,
y=topdir.z*backdir.x - backdir.z*topdir.x,
z=topdir.x*backdir.y - backdir.x*topdir.y}
--is this the right side?
if rightdir.x == tubedir.x and rightdir.y == tubedir.y and rightdir.z == tubedir.z then
return "right"
end
--or the left?
if rightdir.x == -tubedir.x and rightdir.y == -tubedir.y and rightdir.z == -tubedir.z then
return "left"
end
--we should be done by now; initiate panic mode
minetest.log("error", "nodeside has been confused by its parameters; see pipeworks autoplace.lua, line 382")
end
function tube_autoroute(pos)
local active = {0, 0, 0, 0, 0, 0}
local nctr = minetest.get_node(pos)
if not is_tube(nctr.name) then return end
local adjustments = {
{ x=-1, y=0, z=0 },
{ x=1, y=0, z=0 },
{ x=0, y=-1, z=0 },
{ x=0, y=1, z=0 },
{ x=0, y=0, z=-1 },
{ x=0, y=0, z=1 }
}
-- xm = 1, xp = 2, ym = 3, yp = 4, zm = 5, zp = 6
local positions = {}
local nodes = {}
for i,adj in ipairs(adjustments) do
positions[i] = {x=pos.x+adj.x, y=pos.y+adj.y, z=pos.z+adj.z}
nodes[i] = minetest.get_node(positions[i])
end
for i,node in ipairs(nodes) do
local idef = minetest.registered_nodes[node.name]
-- handle the tubes themselves
if is_tube(node.name) then
active[i] = 1
-- handle new style connectors
elseif idef.tube and idef.tube.connects then
-- connects returns true if self can connect w/ neighboring position
-- it uses facesFront, facesTop etc to determine this
-- pipeworks.connects.facingFront...
if idef.tube.connects(i,param2) then active[i] = 1 end
-- oops, handle the *other* newstyle connectors
elseif idef.tube and idef.tube.connect_side then
local dir = adjustments[i]
if idef.connect_sides[nodeside(node, {x=-dir.x, y=-dir.y, z=-dir.z})] then active[i] = 1 end
-- legacy stuff follows
elseif string.find(node.name, "pipeworks:filter") ~= nil or string.find(node.name, "pipeworks:mese_filter") ~= nil then
-- filters only connect to pipes on their output (despite appearances)
-- input has to be a chest or furnace or something
if pipeworks.connects.facingRight(i,node.param2)
then
active[i] = 1
end
elseif
-- not the front
string.find(node.name, "pipeworks:deployer_") ~= nil or
string.find(node.name, "pipeworks:nodebreaker_") ~= nil or
string.find(node.name, "technic:nodebreaker_") ~= nil
then
if not pipeworks.connects.facingFront(i,node.param2) then active[i] = 1 end
elseif
string.find(node.name, "default:furnace") ~= nil or
string.find(node.name, "default:chest") or
string.find(node.name, "default:chest_locked")
then
if not pipeworks.connects.facingFront(i,node.param2) or
pipeworks.connects.facingTop(i,node.param2) then active[i] = 1 end
elseif string.find(node.name, "pipeworks:autocrafter") ~= nil then
active[i] = 1
end
end
-- all sides checked, now figure which tube to use.
nsurround = ""
for i,n in ipairs(active) do
nsurround = nsurround .. n
end
local newname=string.sub(nctr.name,1,-7)..nsurround
if newname == nctr.name then return end
local meta=minetest.get_meta(pos)
local meta0=meta:to_table() -- XXX: hacky_swap_node
nctr.name = newname
minetest.add_node(pos, nctr)
local meta=minetest.get_meta(pos)
meta:from_table(meta0)
local nctr = minetest.get_node(pos)
end
-- auto-rotation code for various devices the tubes attach to
function pipes_scansurroundings(pos)
pxm=0
pxp=0
pym=0
pyp=0
pzm=0
pzp=0
nxm = minetest.get_node({ x=pos.x-1, y=pos.y , z=pos.z })
nxp = minetest.get_node({ x=pos.x+1, y=pos.y , z=pos.z })
nym = minetest.get_node({ x=pos.x , y=pos.y-1, z=pos.z })
nyp = minetest.get_node({ x=pos.x , y=pos.y+1, z=pos.z })
nzm = minetest.get_node({ x=pos.x , y=pos.y , z=pos.z-1 })
nzp = minetest.get_node({ x=pos.x , y=pos.y , z=pos.z+1 })
if (string.find(nxm.name, "pipeworks:pipe_") ~= nil) then pxm=1 end
if (string.find(nxp.name, "pipeworks:pipe_") ~= nil) then pxp=1 end
if (string.find(nym.name, "pipeworks:pipe_") ~= nil) then pym=1 end
if (string.find(nyp.name, "pipeworks:pipe_") ~= nil) then pyp=1 end
if (string.find(nzm.name, "pipeworks:pipe_") ~= nil) then pzm=1 end
if (string.find(nzp.name, "pipeworks:pipe_") ~= nil) then pzp=1 end
-- Special handling for valves...
if (string.find(nxm.name, "pipeworks:valve") ~= nil)
and (nxm.param2 == 0 or nxm.param2 == 2) then
pxm=1
end
if (string.find(nxp.name, "pipeworks:valve") ~= nil)
and (nxp.param2 == 0 or nxp.param2 == 2) then
pxp=1
end
if (string.find(nzm.name, "pipeworks:valve") ~= nil)
and (nzm.param2 == 1 or nzm.param2 == 3) then
pzm=1
end
if (string.find(nzp.name, "pipeworks:valve") ~= nil)
and (nzp.param2 == 1 or nzp.param2 == 3) then
pzp=1
end
-- ...flow sensors...
if (string.find(nxm.name, "pipeworks:flow_sensor") ~= nil)
and (nxm.param2 == 0 or nxm.param2 == 2) then
pxm=1
end
if (string.find(nxp.name, "pipeworks:flow_sensor") ~= nil)
and (nxp.param2 == 0 or nxp.param2 == 2) then
pxp=1
end
if (string.find(nzm.name, "pipeworks:flow_sensor") ~= nil)
and (nzm.param2 == 1 or nzm.param2 == 3) then
pzm=1
end
if (string.find(nzp.name, "pipeworks:flow_sensor") ~= nil)
and (nzp.param2 == 1 or nzp.param2 == 3) then
pzp=1
end
-- ...spigots...
if (string.find(nxm.name, "pipeworks:spigot") ~= nil)
and nxm.param2 == 1 then
pxm=1
end
if (string.find(nxp.name, "pipeworks:spigot") ~= nil)
and nxp.param2 == 3 then
pxp=1
end
if (string.find(nzm.name, "pipeworks:spigot") ~= nil)
and nzm.param2 == 0 then
pzm=1
end
if (string.find(nzp.name, "pipeworks:spigot") ~= nil)
and nzp.param2 == 2 then
pzp=1
end
-- ...sealed pipe entry/exit...
if (string.find(nxm.name, "pipeworks:entry_panel") ~= nil)
and (nxm.param2 == 1 or nxm.param2 == 3) then
pxm=1
end
if (string.find(nxp.name, "pipeworks:entry_panel") ~= nil)
and (nxp.param2 == 1 or nxp.param2 == 3) then
pxp=1
end
if (string.find(nzm.name, "pipeworks:entry_panel") ~= nil)
and (nzm.param2 == 0 or nzm.param2 == 2) then
pzm=1
end
if (string.find(nzp.name, "pipeworks:entry_panel") ~= nil)
and (nzp.param2 == 0 or nzp.param2 == 2) then
pzp=1
end
if (string.find(nym.name, "pipeworks:entry_panel") ~= nil)
and nym.param2 == 13 then
pym=1
end
if (string.find(nyp.name, "pipeworks:entry_panel") ~= nil)
and nyp.param2 == 13 then
pyp=1
end
-- ...pumps, grates...
if (string.find(nym.name, "pipeworks:grating") ~= nil) or
(string.find(nym.name, "pipeworks:pump") ~= nil) then
pym=1
end
-- ...fountainheads...
if (string.find(nyp.name, "pipeworks:fountainhead") ~= nil) then
pyp=1
end
-- ... and storage tanks.
if (string.find(nym.name, "pipeworks:storage_tank_") ~= nil) then
pym=1
end
if (string.find(nyp.name, "pipeworks:storage_tank_") ~= nil) then
pyp=1
end
-- ...extra devices specified via the function's parameters
-- ...except that this part is not implemented yet
--
-- xxx = nxm, nxp, nym, nyp, nzm, or nzp depending on the direction to check
-- yyy = pxm, pxp, pym, pyp, pzm, or pzp accordingly.
--
-- if string.find(xxx.name, "modname:nodename") ~= nil then
-- yyy = 1
-- end
--
-- for example:
--
-- if string.find(nym.name, "aero:outlet") ~= nil then
-- pym = 1
-- end
--
end
function pipe_look_for_stackable_tanks(pos)
local tym = minetest.get_node({ x=pos.x , y=pos.y-1, z=pos.z })
if string.find(tym.name, "pipeworks:storage_tank_") ~= nil or
string.find(tym.name, "pipeworks:expansion_tank_") ~= nil then
minetest.add_node(pos, { name = "pipeworks:expansion_tank_0", param2 = tym.param2})
end
end
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