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rudimentary multi-tube string support

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digiline_send(channel, "some string") will now echo "some string"
to all alphanumeric tubes in a lineup, so long as they all face
the same way, starting from the nixie the LuaC is connected to,
going left to right.  The other tubes in the line do not need to
be connected to anything - think of them as being connected
toghether internally.

The string will spread until either a tube is found that faces the
wrong way, or it has a channel that's not empty/nil and is set to
something other than what the first is set to, or if a node is
encountered that is not an alpha-numeric tube at all.

Tubes to the left of the connected one are ignored; you can put
multiple lines of tubes side by side, so long as each tube that
starts each line has a unique channel.

The string is padded with spaces and trimmed to 64 chars.

Special messages:

"off_multi" turns all tubes in the lineup off
"allon_multi" turns on all anode segments of all tubes in the lineup.

Note that the existing messages "get" and "getstr" will only read
the one character from the first, connected tube, not the others
in the lineup.
This commit is contained in:
Vanessa Dannenberg 2018-08-14 19:31:46 -04:00
parent a345d6412c
commit 83dced745d
1 changed files with 62 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
init.lua
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@ -350,30 +350,73 @@ local alnum_chars = {
{ string.char(129), { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } }, -- "cursor" segment
}
local fdir_to_right = {
{ 1, 0 },
{ 0, -1 },
{ -1, 0 },
{ 0, 1 },
}
local padding = " "
local allon = string.char(128)
for i = 1, 64 do
padding = padding.." "
allon = allon..string.char(128)
end
local display_string = function(pos, channel, string)
if string == "off_multi" then
string = ""
elseif string == "allon_multi" then
string = allon
end
local padded_string = string.sub(string..padding, 1, 64)
local fdir = minetest.get_node(pos).param2 % 4
local pos2 = pos
for i = 1, 64 do
local node = minetest.get_node(pos2)
local meta = minetest.get_meta(pos2)
local setchan = meta:get_string("channel")
if not string.match(node.name, "nixie_tubes:alnum_") or (setchan ~= nil and setchan ~= "" and setchan ~= channel) then break end
local asc = string.byte(padded_string, i, i)
if node.param2 == fdir and asc > 31 and alnum_chars[asc - 31] then
minetest.swap_node(pos2, { name = "nixie_tubes:alnum_"..asc, param2 = node.param2})
end
pos2.x = pos2.x + fdir_to_right[fdir+1][1]
pos2.z = pos2.z + fdir_to_right[fdir+1][2]
end
end
local on_digiline_receive_alnum = function(pos, node, channel, msg)
local meta = minetest.get_meta(pos)
local setchan = meta:get_string("channel")
if setchan ~= channel then return end
if msg and msg ~= "" and type(msg) == "string" then
local asc = string.byte(msg)
if msg == "off" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_32", param2 = node.param2})
elseif msg == "colon" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_58", param2 = node.param2})
elseif msg == "period" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_46", param2 = node.param2})
elseif msg == "del" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_127", param2 = node.param2})
elseif msg == "allon" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_128", param2 = node.param2})
elseif msg == "cursor" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_129", param2 = node.param2})
elseif asc > 31 and alnum_chars[asc - 31] then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_"..asc, param2 = node.param2})
elseif msg == "get" then -- get value as ASCII numerical value
digiline:receptor_send(pos, digiline.rules.default, channel, tonumber(string.match(minetest.get_node(pos).name,"nixie_tubes:alnum_(.+)"))) -- wonderfully horrible string manipulaiton
elseif msg == "getstr" then -- get actual char
digiline:receptor_send(pos, digiline.rules.default, channel, string.char(tonumber(string.match(minetest.get_node(pos).name,"nixie_tubes:alnum_(.+)"))))
if string.len(msg) > 1 then
if msg == "off" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_32", param2 = node.param2})
elseif msg == "colon" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_58", param2 = node.param2})
elseif msg == "period" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_46", param2 = node.param2})
elseif msg == "del" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_127", param2 = node.param2})
elseif msg == "allon" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_128", param2 = node.param2})
elseif msg == "cursor" then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_129", param2 = node.param2})
else
display_string(pos, channel, msg)
end
else
local asc = string.byte(msg)
if asc > 31 and alnum_chars[asc - 31] then
minetest.swap_node(pos, { name = "nixie_tubes:alnum_"..asc, param2 = node.param2})
elseif msg == "get" then -- get value as ASCII numerical value
digiline:receptor_send(pos, digiline.rules.default, channel, tonumber(string.match(minetest.get_node(pos).name,"nixie_tubes:alnum_(.+)"))) -- wonderfully horrible string manipulaiton
elseif msg == "getstr" then -- get actual char
digiline:receptor_send(pos, digiline.rules.default, channel, string.char(tonumber(string.match(minetest.get_node(pos).name,"nixie_tubes:alnum_(.+)"))))
end
end
elseif msg and type(msg) == "number" then
if msg == 0 then