forked from mtcontrib/pipeworks
247 lines
9.0 KiB
Lua
247 lines
9.0 KiB
Lua
-- 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
|