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That's all there is to it!

5
README.md
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@ -44,10 +44,10 @@ All other nodes are build by means of axis/rotation variants based on param2
The 3 free MSB bits of param2 of tube nodes are used to store the number of connections (0..2).
The data of the peer head tube are stored as meta data: "peer_pos" and "peer_dir"
The data of the peer head tube are stored in memory 'self.connCache'
Tubelib2 provides an update mechanism for connected "secondary" nodes. A callback function
"tubelib2_on_update" will be called for every change on the connected tubes.
func(node, pos, out_dir, peer_pos, peer_in_dir) will be called for every change on the connected tubes.
@ -65,3 +65,4 @@ Textures: CC0
- 2018-10-27 v0.2 * Tested against and enhanced for the hyperloop mod.
- 2018-10-27 v0.3 * Further improvements.
- 2018-11-09 v0.4 * on_update function for secondary nodes introduced
- 2018-12-16 v0.5 * meta data removed, memory cache added instead of

87
design.txt
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@ -68,90 +68,3 @@ dir1/dir2 1/2 1/4 2/3 3/4
axis/rot 2/3 3/2 1/3 1/1
####################################################
after_place_node()
update_after_place_node()
get_meta()
repair_tube_line()
get_pos()
update_secondary_node()
after_place_tube()
update_after_place_tube()
del_meta()
repair_tube_line()
add_meta()
update_secondary_node()
after_dig_node()
update_after_dig_node()
get_meta()
repair_tube_line()
get_pos()
add_meta()
update_secondary_node()
after_dig_tube()
update_after_dig_tube()
get_meta()
repair_tube_line()
get_pos()
add_meta()
update_secondary_node()
get_connected_node_pos()
get_meta()
repair_tube_line()
get_pos()
tool_repair_tubes()
determine_dirs()
repair_tube_line()
add_meta()
update_secondary_node()
tool_remove_tube()
remove_tube()
repair_tube_line()
get_pos()
add_meta()
update_secondary_node()
#####################################################################
primary_node()
secondary_node()
get_primary_dir()
get_pos()
del_meta()
get_meta()
add_meta()
repair_tube_line()
update_secondary_node()
update_after_place_node()
update_after_dig_node()
update_after_place_tube()
update_after_dig_tube()
#####################################################################
Neuer Ansatz
============
+------+ +------+
|peer->| |<-peer|
| |<--------------->| |
|dir-> | | <-dir|
+------+ +------+
Beim Setzen eines Nodes x werden immer die Meta-Daten in f1 und f2 aktualisiert
sowie die Secundary Update-Funktion von S1 und S2 aufgerufen.
[S1][f1]----[n1] x [n2]----[f2][S2]

2
init.lua
View File

@ -1,7 +1,7 @@
tubelib2 = {}
dofile(minetest.get_modpath("tubelib2") .. "/tube_api.lua")
dofile(minetest.get_modpath("tubelib2") .. "/internal2.lua")
dofile(minetest.get_modpath("tubelib2") .. "/internal1.lua")
dofile(minetest.get_modpath("tubelib2") .. "/tube_api.lua")
-- Only for testing/demo purposes
dofile(minetest.get_modpath("tubelib2") .. "/tube_test.lua")

213
internal1.lua
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@ -22,32 +22,39 @@ local M = minetest.get_meta
local Tube = tubelib2.Tube
local Turn180Deg = tubelib2.Turn180Deg
local Dir6dToVector = tubelib2.Dir6dToVector
local encode_param2 = tubelib2.encode_param2
local tValidNum = {[0] = true, true, true} -- 0..2 are valid
--------------------------------------------------------------------------------------
-- node get/test functions
--------------------------------------------------------------------------------------
-- format and return given data as table
local function get_tube_data(pos, dir1, dir2, num_tubes)
local param2, tube_type = encode_param2(dir1, dir2, num_tubes)
return pos, param2, tube_type, num_tubes
end
-- Check if node at given position is a tube node
-- If dir == nil then node_pos = pos
-- Function returns the new pos or nil
function Tube:primary_node(pos, dir)
local npos, node = self:get_node(pos, dir)
if self.primary_node_names[node.name] then
return npos, node
local function fdir(self, player)
local pitch = player:get_look_pitch()
if pitch > 1.0 and self.valid_dirs[6] then -- up?
return 6
elseif pitch < -1.0 and self.valid_dirs[5] then -- down?
return 5
elseif not self.valid_dirs[1] then
return 6
else
return minetest.dir_to_facedir(player:get_look_dir()) + 1
end
end
-- Check if node at given position is a secondary node
-- If dir == nil then node_pos = pos
-- Function returns the new pos or nil
function Tube:secondary_node(pos, dir)
local npos, node = self:get_node(pos, dir)
if self.secondary_node_names[node.name] then
return npos
local function get_player_data(self, placer, pointed_thing)
if placer and pointed_thing and pointed_thing.type == "node" then
if placer:get_player_control().sneak then
return pointed_thing.under, fdir(placer)
else
return nil, fdir(self, placer)
end
end
end
-- Used to determine the node side to the tube connection.
-- Function returns the first found dir value
-- to a primary node.
@ -61,133 +68,37 @@ function Tube:get_primary_dir(pos)
end
end
-- Return the new pos behind pos/dir and the dir our of the node.
function Tube:get_pos(pos, dir)
return vector.add(pos, Dir6dToVector[dir or 0]), Turn180Deg[dir]
end
--------------------------------------------------------------------------------------
-- get/del/add meta data functions
--------------------------------------------------------------------------------------
function Tube:del_meta(pos, dir)
local npos, node = self:get_node(pos, dir)
if self.primary_node_names[node.name] then
local meta = M(npos)
local peer_pos = meta:get_string("peer_pos")
local peer_dir = meta:get_int("peer_dir")
meta:from_table(nil)
if peer_pos ~= "" then
return P(peer_pos), peer_dir
-- pos/dir are the pos of the stable secondary node pointing to the head tube node.
function Tube:del_from_cache(pos, dir)
local key = S(pos)
if self.connCache[key] and self.connCache[key][dir] then
local pos2 = self.connCache[key][dir].pos2
local dir2 = self.connCache[key][dir].dir2
local key2 = S(pos2)
if self.connCache[key2] and self.connCache[key2][dir2] then
self.connCache[key2][dir2] = nil
end
end
return self:repair_tube_line(pos, dir)
end
function Tube:get_meta(pos, dir)
local npos = vector.add(pos, Dir6dToVector[dir or 0])
local meta = M(npos)
local peer_pos = meta:get_string("peer_pos")
local peer_dir = meta:get_int("peer_dir")
if peer_pos ~= "" then
return P(peer_pos), peer_dir
end
return self:repair_tube_line(pos, dir)
end
-- Like get_meta(), but repair data if necessary
function Tube:repair_meta(pos, dir)
local npos = vector.add(pos, Dir6dToVector[dir or 0])
local meta = M(npos)
local peer_pos = meta:get_string("peer_pos")
local peer_dir = meta:get_int("peer_dir")
if peer_pos ~= "" then
return P(peer_pos), peer_dir
end
peer_pos, peer_dir = self:repair_tube_line(pos, dir)
self:add_meta(npos, peer_pos, peer_dir)
return peer_pos, peer_dir
end
function Tube:get_oldmeta(pos, dir, oldmetadata)
if oldmetadata.fields and oldmetadata.fields.peer_pos then
return P(oldmetadata.fields.peer_pos), tonumber(oldmetadata.fields.peer_dir)
end
return self:repair_tube_line(pos, dir)
end
-- Add meta data from the other tube head node
function Tube:add_meta(pos, peer_pos, peer_dir)
local _, node = self:get_node(pos)
if self.primary_node_names[node.name] then
if self.show_infotext then
M(pos):set_string("infotext", S(peer_pos))
end
M(pos):set_string("peer_pos", S(peer_pos))
M(pos):set_int("peer_dir", peer_dir)
self.connCache[key][dir] = nil
end
end
--------------------------------------------------------------------------------------
-- Further helper functions
--------------------------------------------------------------------------------------
-- Do a correction of param2, delete meta data of all 2-conn-tubes,
-- and return peer_pos, peer_dir, and number of tube nodes.
function Tube:repair_tube_line(pos, dir)
local get_next_tube = function(self, pos, dir)
local npos, dir1, dir2, num = self:determine_next_node(pos, dir)
if dir1 then
M(npos):from_table(nil)
if Turn180Deg[dir] == dir1 then
return npos, dir2, num
else
return npos, dir1, num
-- pos/dir are the pos of the secondary nodes pointing to the head tube nodes.
function Tube:add_to_cache(pos1, dir1, pos2, dir2)
local key = S(pos1)
if not self.connCache[key] then
self.connCache[key] = {}
end
end
return self:get_next_teleport_node(pos, dir)
end
-- do a correction of "number of neighbours" for all nodes in between
local repair_tube = function(self, pos, dir)
local _, node = self:primary_node(pos, dir)
if node then
node.param2 = (2 * 32) + (node.param2 % 32)
minetest.swap_node(pos, node)
end
end
local cnt = 0
if not dir then return pos, dir, cnt end
while cnt <= self.max_tube_length do
local new_pos, new_dir, num = get_next_tube(self, pos, dir)
if not new_dir then break end
if cnt > 0 and num ~= 2 then
repair_tube(self, pos, dir)
end
pos, dir = new_pos, new_dir
cnt = cnt + 1
end
return pos, dir, cnt
self.connCache[key][dir1] = {pos2 = pos2, dir2 = dir2}
end
-- fpos,fdir points to the secondary node to be updated.
-- npos,ndir are used to calculate the connection data to be stored.
function Tube:update_secondary_node(fpos,fdir, npos,ndir)
-- [s]<-[n]----[f]->[s]
print("update_secondary_node", S(fpos), fdir)
local fpos2, node = self:get_node(fpos, fdir)
-- pos/dir are the pos of the secondary nodes pointing to the head tube nodes.
function Tube:update_secondary_node(pos1, dir1, pos2, dir2)
local _, node = self:get_node(pos1)
if self.secondary_node_names[node.name] and self.clbk_update_secondary_node then
local npos2 = self:get_pos(npos, ndir)
if vector.equals(npos2, fpos2) then -- last tube removed?
npos2,ndir = nil,nil -- used to delete the data base
end
self.clbk_update_secondary_node(node, fpos2, Turn180Deg[fdir], npos2, ndir)
self.clbk_update_secondary_node(node, pos1, dir1, pos2, Turn180Deg[dir2])
end
end
--------------------------------------------------------------------------------------
-- pairing functions
--------------------------------------------------------------------------------------
@ -213,7 +124,7 @@ function Tube:update_after_place_node(pos, dirs)
for _,dir in ipairs(dirs) do
local npos, d1, d2, num = self:add_tube_dir(pos, dir)
if npos and self.valid_dirs[d1] and self.valid_dirs[d2] and tValidNum[num]then
self.clbk_after_place_tube(self:tube_data_to_table(npos, d1, d2, num))
self.clbk_after_place_tube(get_tube_data(npos, d1, d2, num))
lRes[#lRes+1] = dir
end
end
@ -227,7 +138,7 @@ function Tube:update_after_dig_node(pos, dirs)
for _,dir in ipairs(dirs) do
local npos, d1, d2, num = self:del_tube_dir(pos, dir)
if npos and self.valid_dirs[d1] and self.valid_dirs[d2] and tValidNum[num]then
self.clbk_after_place_tube(self:tube_data_to_table(npos, d1, d2, num))
self.clbk_after_place_tube(get_tube_data(npos, d1, d2, num))
lRes[#lRes+1] = dir
end
end
@ -235,55 +146,47 @@ function Tube:update_after_dig_node(pos, dirs)
end
function Tube:update_after_place_tube(pos, placer, pointed_thing)
local preferred_pos, fdir = self:get_player_data(placer, pointed_thing)
local preferred_pos, fdir = get_player_data(self, placer, pointed_thing)
local dir1, dir2, num_tubes = self:determine_tube_dirs(pos, preferred_pos, fdir)
if dir1 == nil then
return false
end
if self.valid_dirs[dir1] and self.valid_dirs[dir2] and tValidNum[num_tubes]then
self.clbk_after_place_tube(self:tube_data_to_table(pos, dir1, dir2, num_tubes))
self.clbk_after_place_tube(get_tube_data(pos, dir1, dir2, num_tubes))
end
if num_tubes >= 1 then
local npos, d1, d2, num = self:add_tube_dir(pos, dir1)
if npos and self.valid_dirs[d1] and self.valid_dirs[d2] and tValidNum[num]then
self.clbk_after_place_tube(self:tube_data_to_table(npos, d1, d2, num))
self.clbk_after_place_tube(get_tube_data(npos, d1, d2, num))
end
end
if num_tubes >= 2 then
local npos, d1, d2, num = self:add_tube_dir(pos, dir2)
if npos and self.valid_dirs[d1] and self.valid_dirs[d2] and tValidNum[num]then
self.clbk_after_place_tube(self:tube_data_to_table(npos, d1, d2, num))
self.clbk_after_place_tube(get_tube_data(npos, d1, d2, num))
end
end
return true, dir1, dir2, num_tubes
end
function Tube:update_after_dig_tube(pos, param2)
local dir1, dir2, num_tubes = self:decode_param2(pos, param2)
local dir1, dir2 = self:decode_param2(pos, param2)
local lRes = {}
local npos, d1, d2, num = self:del_tube_dir(pos, dir1)
if npos and self.valid_dirs[d1] and self.valid_dirs[d2] and tValidNum[num]then
self.clbk_after_place_tube(self:tube_data_to_table(npos, d1, d2, num))
lRes[#lRes+1] = dir1
self.clbk_after_place_tube(get_tube_data(npos, d1, d2, num))
else
dir1 = nil
end
npos, d1, d2, num = self:del_tube_dir(pos, dir2)
if npos and self.valid_dirs[d1] and self.valid_dirs[d2] and tValidNum[num]then
self.clbk_after_place_tube(self:tube_data_to_table(npos, d1, d2, num))
lRes[#lRes+1] = dir2
self.clbk_after_place_tube(get_tube_data(npos, d1, d2, num))
else
dir2 = nil
end
return lRes
end
function Tube:update_secondary_nodes_after_dig_tube(pos)
local d1, d2 = self:determine_dir1_dir2_and_num_conn(pos)
if d1 then
self:update_secondary_node(pos,d1, pos,d1)
end
if d2 then
self:update_secondary_node(pos,d2, pos,d2)
end
return dir1, dir2
end

165
internal2.lua
View File

@ -20,6 +20,7 @@ local M = minetest.get_meta
local Turn180Deg = {[0]=0,3,4,1,2,6,5}
tubelib2.Turn180Deg = Turn180Deg
tubelib2.Tube = {}
-- To calculate param2 based on dir6d information
local DirToParam2 = {
@ -74,21 +75,6 @@ local VectorToDir6d = {
-- Local Functions
--
local function Tbl(list)
local tbl = {}
for _,item in ipairs(list) do
tbl[item] = true
end
return tbl
end
-- Return val in the range of min and max
local function range(val, min, max)
if val > max then return max end
if val < min then return min end
return val
end
local function get_node_lvm(pos)
local node = minetest.get_node_or_nil(pos)
if node then
@ -107,6 +93,42 @@ local function get_node_lvm(pos)
return node
end
local function get_next_tube(self, pos, dir)
local npos = vector.add(pos, Dir6dToVector[dir or 0])
local node = get_node_lvm(npos)
if self.primary_node_names[node.name] then
-- decode param2
local val = Param2ToDir[node.param2 % 32]
if val then
local dir1, dir2 = math.floor(val / 10), val % 10
local num_conn = math.floor(node.param2 / 32)
if Turn180Deg[dir] == dir1 then
return npos, dir2, num_conn
else
return npos, dir1, num_conn
end
end
end
return self:get_next_teleport_node(pos, dir)
end
local function repair_tube(self, pos, dir)
local node = get_node_lvm(pos, dir)
if self.primary_node_names[node.name] then
node.param2 = (2 * 32) + (node.param2 % 32)
minetest.set_node(pos, node)
end
end
-- Return param2 and tube type ("A"/"S")
function tubelib2.encode_param2(dir1, dir2, num_conn)
if dir1 > dir2 then
dir1, dir2 = dir2, dir1
end
local param2, _type = unpack(DirToParam2[dir1 * 10 + dir2] or {0, "S"})
return (num_conn * 32) + param2, _type
end
--
-- Tubelib2 Methods
@ -114,36 +136,24 @@ end
local Tube = tubelib2.Tube
function Tube:fdir(player)
local pitch = player:get_look_pitch()
if pitch > 1.0 and self.valid_dirs[6] then -- up?
return 6
elseif pitch < -1.0 and self.valid_dirs[5] then -- down?
return 5
elseif not self.valid_dirs[1] then
return 6
else
return minetest.dir_to_facedir(player:get_look_dir()) + 1
-- Check if node at given position is a tube node
-- If dir == nil then node_pos = pos
-- Function returns the new pos or nil
function Tube:primary_node(pos, dir)
local npos, node = self:get_node(pos, dir)
if self.primary_node_names[node.name] then
return npos, node
end
end
function Tube:get_player_data(placer, pointed_thing)
if placer and pointed_thing and pointed_thing.type == "node" then
if placer:get_player_control().sneak then
return pointed_thing.under, self:fdir(placer)
else
return nil, self:fdir(placer)
-- Check if node at given position is a secondary node
-- If dir == nil then node_pos = pos
-- Function returns the new pos or nil
function Tube:secondary_node(pos, dir)
local npos, node = self:get_node(pos, dir)
if self.secondary_node_names[node.name] then
return npos
end
end
end
-- Return param2 and tube type ("A"/"S")
function Tube:encode_param2(dir1, dir2, num_conn)
if dir1 > dir2 then
dir1, dir2 = dir2, dir1
end
local param2, _type = unpack(DirToParam2[dir1 * 10 + dir2] or {0, "S"})
return (num_conn * 32) + param2, _type
end
-- Check if node has a connection on the given dir
@ -154,21 +164,6 @@ function Tube:connected(pos, dir)
or self.secondary_node_names[node.name]
end
-- Determine dirs via surrounding nodes
function Tube:determine_dir1_dir2_and_num_conn(pos)
local dirs = {}
for dir = 1, 6 do
if self:connected(pos, dir) then
dirs[#dirs+1] = dir
end
end
if #dirs == 1 then
return dirs[1], nil, 1
elseif #dirs == 2 then
return dirs[1], dirs[2], 2
end
end
-- Return dir1, dir2, num_conn
function Tube:decode_param2(pos, param2)
local val = Param2ToDir[param2 % 32]
@ -177,14 +172,6 @@ function Tube:decode_param2(pos, param2)
local num_conn = math.floor(param2 / 32)
return dir1, dir2, num_conn
end
-- determine dirs via surrounding nodes
return self:determine_dir1_dir2_and_num_conn(pos)
end
-- No connection to both sides
function Tube:first_placed_node(pos, param2)
return math.floor(param2 / 32) == 0
end
-- Return node next to pos in direction 'dir'
@ -280,20 +267,6 @@ function Tube:determine_tube_dirs(pos, preferred_pos, fdir)
end
end
function Tube:determine_next_node(pos, dir)
local npos, node = self:get_node(pos, dir)
if self.primary_node_names[node.name] then
local d1,d2,num = self:decode_param2(npos, node.param2)
return npos, d1, d2, num
end
end
-- format and return given data as table
function Tube:tube_data_to_table(pos, dir1, dir2, num_tubes)
local param2, tube_type = self:encode_param2(dir1, dir2, num_tubes)
return pos, param2, tube_type, num_tubes
end
-- Determine a tube side without connection, increment the number of connections
-- and return the new data to be able to update the node:
-- new_pos, dir1, dir2, num_connections (1, 2)
@ -354,15 +327,31 @@ function Tube:get_next_teleport_node(pos, dir)
end
end
function Tube:remove_tube(pos, sound)
local node = get_node_lvm(pos)
if self.primary_node_names[node.name] then
minetest.sound_play({
name=sound},{
gain=1,
max_hear_distance=5,
loop=false})
minetest.remove_node(pos)
return node, {}
function Tube:dbg_out()
for pos1,item1 in pairs(self.connCache) do
for dir1,item2 in pairs(item1) do
print("pos1="..pos1..", dir1="..dir1..", pos2="..S(item2.pos2)..", dir2="..item2.dir2)
end
end
end
-- Walk to the end of the tube line and return pos and outdir of both head tube nodes.
-- If no tube is available, return nil
function Tube:walk_tube_line(pos, dir)
local cnt = 0
if dir then
while cnt <= self.max_tube_length do
local new_pos, new_dir, num = get_next_tube(self, pos, dir)
if not new_dir then break end
if cnt > 0 and num ~= 2 then
repair_tube(self, new_pos, new_dir)
end
pos, dir = new_pos, new_dir
cnt = cnt + 1
end
if cnt > 0 then
return pos, dir, cnt
end
end
return table.copy(pos), dir, 0
end

139
tube_api.lua
View File

@ -13,7 +13,7 @@
]]--
-- Version for compatibility checks, see readme.md/history
tubelib2.version = 0.4
tubelib2.version = 0.5
-- for lazy programmers
local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
@ -34,11 +34,42 @@ local function Tbl(list)
end
-- Tubelib2 Class
tubelib2.Tube = {}
local Tube = tubelib2.Tube
local Turn180Deg = tubelib2.Turn180Deg
local Dir6dToVector = tubelib2.Dir6dToVector
local function get_pos(pos, dir)
return vector.add(pos, Dir6dToVector[dir or 0])
end
local function update1(self, pos, dir)
local fpos,fdir = self:walk_tube_line(pos, dir)
-- Translate pos/dir pointing to the secondary node into
-- spos/sdir of the secondary node pointing to the tube.
local spos, sdir = get_pos(fpos,fdir), Turn180Deg[fdir]
self:del_from_cache(spos, sdir)
self:add_to_cache(pos, dir, spos, sdir)
self:add_to_cache(spos, sdir, pos, dir)
self:update_secondary_node(pos, dir, spos, sdir)
self:update_secondary_node(spos, sdir, pos, dir)
end
local function update2(self, pos1, dir1, pos2, dir2)
local fpos1,fdir1 = self:walk_tube_line(pos1, dir1)
local fpos2,fdir2 = self:walk_tube_line(pos2, dir2)
-- Translate fpos/fdir pointing to the secondary node into
-- spos/sdir of the secondary node pointing to the tube.
local spos1, sdir1 = get_pos(fpos1,fdir1), Turn180Deg[fdir1]
local spos2, sdir2 = get_pos(fpos2,fdir2), Turn180Deg[fdir2]
self:del_from_cache(spos1, sdir1)
self:del_from_cache(spos2, sdir2)
self:add_to_cache(spos1, sdir1, spos2, sdir2)
self:add_to_cache(spos2, sdir2, spos1, sdir1)
self:update_secondary_node(spos1, sdir1, spos2, sdir2)
self:update_secondary_node(spos2, sdir2, spos1, sdir1)
end
--
-- API Functions
--
@ -52,6 +83,7 @@ function Tube:new(attr)
show_infotext = attr.show_infotext or false,
clbk_after_place_tube = attr.after_place_tube,
pairingList = {}, -- teleporting nodes
connCache = {}, -- connection cache {pos1 = {dir1 = {pos2 = pos2, dir2 = dir2},...}
}
o.valid_dirs = Tbl(o.dirs_to_check)
setmetatable(o, self)
@ -72,16 +104,17 @@ function Tube:register_on_tube_update(update_secondary_node)
self.clbk_update_secondary_node = update_secondary_node
end
function Tube:get_pos(pos, dir)
return vector.add(pos, Dir6dToVector[dir or 0])
end
-- To be called after a secondary node is placed.
-- dirs is a list with valid dirs, like: {1,2,3,4}
function Tube:after_place_node(pos, dirs)
-- [s][f]----[n] x
-- s..secondary, f..far, n..near, x..node to be placed
for _,dir in ipairs(self:update_after_place_node(pos, dirs)) do
local fpos,fdir = self:repair_meta(pos, dir)
local npos, ndir = self:get_pos(pos, dir)
self:update_secondary_node(fpos,fdir, npos,ndir)
self:update_secondary_node(npos,ndir, fpos,fdir)
update1(self, pos, dir)
end
end
@ -90,14 +123,9 @@ end
function Tube:after_place_tube(pos, placer, pointed_thing)
-- [s1][f1]----[n1] x [n2]-----[f2][s2]
-- s..secondary, f..far, n..near, x..node to be placed
local res,dir1,dir2,cnt = self:update_after_place_tube(pos, placer, pointed_thing)
if res and cnt > 0 then -- other nodes around?
local fpos1,fdir1 = self:del_meta(pos, dir1)
local fpos2,fdir2 = self:del_meta(pos, dir2)
self:add_meta(fpos1, fpos2,fdir2)
self:add_meta(fpos2, fpos1,fdir1)
self:update_secondary_node(fpos1,fdir1, fpos2,fdir2)
self:update_secondary_node(fpos2,fdir2, fpos1,fdir1)
local res,dir1,dir2 = self:update_after_place_tube(pos, placer, pointed_thing)
if res then -- node placed?
update2(self, pos, dir1, pos, dir2)
end
return res
end
@ -106,26 +134,27 @@ function Tube:after_dig_node(pos, dirs)
-- [s][f]----[n] x
-- s..secondary, f..far, n..near, x..node to be removed
for _,dir in ipairs(self:update_after_dig_node(pos, dirs)) do
local fpos,fdir = self:get_meta(pos, dir)
local npos,ndir = self:get_pos(pos, dir)
self:add_meta(npos, fpos,fdir)
self:add_meta(fpos, npos,ndir)
self:update_secondary_node(fpos,fdir, npos,ndir)
update1(self, pos, dir)
end
end
-- To be called after a tube/primary node is removed.
function Tube:after_dig_tube(pos, oldnode, oldmetadata)
function Tube:after_dig_tube(pos, oldnode)
-- [s1][f1]----[n1] x [n2]-----[f2][s2]
-- s..secondary, f..far, n..near, x..node to be removed
for _,dir in ipairs(self:update_after_dig_tube(pos, oldnode.param2)) do
local fpos,fdir = self:get_oldmeta(pos, dir, oldmetadata)
local npos,ndir = self:get_pos(pos, dir)
self:add_meta(npos, fpos,fdir)
self:add_meta(fpos, npos,ndir)
self:update_secondary_node(fpos,fdir, npos,ndir)
end
self:update_secondary_nodes_after_dig_tube(pos)
-- update tubes
local dir1, dir2 = self:update_after_dig_tube(pos, oldnode.param2)
if dir1 then update1(self, pos, dir1) end
if dir2 then update1(self, pos, dir2) end
-- Update secondary nodes, if right beside
dir1, dir2 = self:decode_param2(pos, oldnode.param2)
local npos1,ndir1 = get_pos(pos, dir1),Turn180Deg[dir1]
local npos2,ndir2 = get_pos(pos, dir2),Turn180Deg[dir2]
self:del_from_cache(npos1,ndir1)
self:update_secondary_node(npos1,ndir1)
self:update_secondary_node(npos2,ndir2)
end
@ -134,38 +163,29 @@ end
-- The returned pos is the destination position, dir
-- is the direction into the destination node.
function Tube:get_connected_node_pos(pos, dir)
local fpos,fdir = self:repair_meta(pos, dir)
local npos,ndir = self:get_pos(fpos,fdir)
-- only one tube with wrong dir info?
if vector.equals(pos, npos) then
fpos,fdir = self:del_meta(pos, dir)
npos,ndir = self:get_pos(fpos,fdir)
local key = S(pos)
if self.connCache[key] and self.connCache[key][dir] then
local item = self.connCache[key][dir]
return item.pos2, Turn180Deg[item.dir2]
end
return npos, fdir
local fpos,fdir = self:walk_tube_line(pos, dir)
local spos = get_pos(fpos,fdir)
self:add_to_cache(pos, dir, spos, Turn180Deg[fdir])
self:add_to_cache(spos, Turn180Deg[fdir], pos, dir)
return spos, fdir
end
-- To be called from a repair tool in the case of a "WorldEdit" or with
-- legacy nodes corrupted tube line.
function Tube:tool_repair_tube(pos)
local res,dir1,dir2 = self:determine_next_node(pos)
if res then
local fpos1,fdir1,cnt1 = self:repair_tube_line(pos, dir1)
local fpos2,fdir2,cnt2 = self:repair_tube_line(pos, dir2)
self:add_meta(fpos1, fpos2,fdir2)
self:add_meta(fpos2, fpos1,fdir1)
self:update_secondary_node(fpos1,fdir1, fpos2,fdir2)
self:update_secondary_node(fpos2,fdir2, fpos1,fdir1)
return dir1, dir2, fpos1, fpos2, fdir1, fdir2, cnt1 or 0, cnt2 or 0
end
end
-- To be called from a repair tool in the case, tube nodes are "unbreakable".
function Tube:tool_remove_tube(pos, sound)
local oldnode, oldmeta = self:remove_tube(pos, sound)
if oldnode then
self:after_dig_tube(pos, oldnode, oldmeta)
local _,node = self:get_node(pos)
if self.primary_node_names[node.name] then
minetest.sound_play({name=sound},{
pos=pos,
gain=1,
max_hear_distance=5,
loop=false})
minetest.remove_node(pos)
self:after_dig_tube(pos, node)
return true
end
return false
@ -189,16 +209,9 @@ function Tube:pairing(pos, channel)
if self.pairingList[channel] and pos ~= self.pairingList[channel] then
-- store peer position on both nodes
local peer_pos = self.pairingList[channel]
local tube_dir1 = self:store_teleport_data(pos, peer_pos)
local tube_dir2 = self:store_teleport_data(peer_pos, pos)
local fpos1,fdir1 = self:repair_tube_line(pos, tube_dir1)
local fpos2,fdir2 = self:repair_tube_line(peer_pos, tube_dir2)
self:add_meta(fpos1, fpos2,fdir2)
self:add_meta(fpos2, fpos1,fdir1)
self:update_secondary_node(fpos1,fdir1, fpos2,fdir2)
self:update_secondary_node(fpos2,fdir2, fpos1,fdir1)
update2(self, pos, tube_dir1, peer_pos, tube_dir2)
self.pairingList[channel] = nil
return true
else

64
tube_test.lua
View File

@ -42,9 +42,9 @@ Tube:register_on_tube_update(function(node, pos, out_dir, peer_pos, peer_in_dir)
print(S(pos).." to the "..sdir..": Not connected")
elseif Tube:secondary_node(peer_pos) then
local node = minetest.get_node(peer_pos)
print(S(pos).." to the "..sdir..": Connected with "..node.name)
print(S(pos).." to the "..sdir..": Connected with "..node.name.." at "..S(peer_pos).."/"..peer_in_dir)
else
print(S(pos).." to the "..sdir..": Connected with "..S(peer_pos))
print(S(pos).." to the "..sdir..": Connected with "..S(peer_pos).."/"..peer_in_dir)
end
end)
@ -247,45 +247,12 @@ minetest.register_node("tubelib2:teleporter", {
sounds = default.node_sound_glass_defaults(),
})
--local function read_param2(pos, player)
-- local node = minetest.get_node(pos)
-- local num = math.floor(node.param2/32)
-- local axis = math.floor(node.param2/4) % 8
-- local rot = node.param2 % 4
-- minetest.chat_send_player(player:get_player_name(), "[Tubelib2] param2 = "..node.param2.."/"..num.."/"..axis.."/"..rot)
--end
local function read_param2(pos, player)
local node = minetest.get_node(pos)
local dir1, dir2, num_tubes = Tube:decode_param2(pos, node.param2)
minetest.chat_send_player(player:get_player_name(), "[Tubelib2] pos="..S(pos)..", dir1="..dir1..", dir2="..dir2..", num_tubes="..num_tubes)
end
local function chat_message(dir, cnt, peer_pos, peer_dir)
local sdir = tubelib2.dir_to_string(dir)
if Tube:secondary_node(peer_pos, peer_dir) then
local npos, node = Tube:get_node(peer_pos, peer_dir)
return "[Tubelib2] To the "..sdir..": "..cnt.." tube nodes to "..node.name.." at "..S(npos)
else
return "[Tubelib2] To the "..sdir..": "..cnt.." tube nodes to "..S(peer_pos)
end
end
local function repair_tubes(itemstack, placer, pointed_thing)
if pointed_thing.type == "node" then
local pos = pointed_thing.under
local t = minetest.get_us_time()
local dir1, dir2, fpos1, fpos2, fdir1, fdir2, cnt1, cnt2 =
Tube:tool_repair_tube(pos, placer, pointed_thing)
t = minetest.get_us_time() - t
print("time", t)
if fpos1 and fpos2 then
minetest.chat_send_player(placer:get_player_name(), chat_message(dir1, cnt1, fpos1, fdir1))
minetest.chat_send_player(placer:get_player_name(), chat_message(dir2, cnt2, fpos2, fdir2))
end
end
end
local function remove_tube(itemstack, placer, pointed_thing)
if pointed_thing.type == "node" then
local pos = pointed_thing.under
@ -303,6 +270,31 @@ local function remove_tube(itemstack, placer, pointed_thing)
end
end
local function walk(itemstack, placer, pointed_thing)
if pointed_thing.type == "node" then
local pos = pointed_thing.under
local dir = (minetest.dir_to_facedir(placer:get_look_dir()) % 4) + 1
local t = minetest.get_us_time()
local pos1, outdir1, pos2, outdir2, cnt = Tube:walk(pos, dir)
t = minetest.get_us_time() - t
print("time", t)
if pos1 then
local s = "[Tubelib2] pos1="..S(pos1)..", outdir1="..outdir1..", pos2="..S(pos2)..", outdir2="..outdir2..", cnt="..cnt
minetest.chat_send_player(placer:get_player_name(), s)
end
else
local dir = (minetest.dir_to_facedir(placer:get_look_dir()) % 4) + 1
minetest.chat_send_player(placer:get_player_name(),
"[Tool Help] dir="..dir.."\n"..
" left: remove node\n"..
" right: repair tube line\n")
end
end
local function debug(itemstack, placer, pointed_thing)
Tube:dbg_out()
end
-- Tool for tube workers to crack a protected tube line
minetest.register_node("tubelib2:tool", {
description = "Tubelib2 Tool",
@ -311,7 +303,7 @@ minetest.register_node("tubelib2:tool", {
use_texture_alpha = true,
groups = {cracky=1, book=1},
on_use = remove_tube,
on_place = repair_tubes,
on_place = debug,
node_placement_prediction = "",
stack_max = 1,
})