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-- simple LED marquee mod
-- by Vanessa Dannenberg
local S
if minetest.get_modpath("intllib") then
S = intllib.make_gettext_pair()
else
S = function(s) return s end
end
-- the following functions based on the so-named ones in Jeija's digilines mod
local reset_meta = function(pos)
minetest.get_meta(pos):set_string("formspec", "field[channel;Channel;${channel}]")
end
local on_digiline_receive_std = function(pos, node, channel, msg)
local meta = minetest.get_meta(pos)
local setchan = meta:get_string("channel")
if setchan ~= channel then return end
local num = tonumber(msg)
if msg == "colon" or msg == "period" or msg == "off" or (num and (num >= 0 and num <= 9)) then
minetest.swap_node(pos, { name = "led_marquee:marquee_"..msg, param2 = node.param2})
end
end
-- the nodes:
local fdir_to_right = {
{ 0, -1 },
{ 0, -1 },
{ 0, -1 },
{ 0, 1 },
{ 1, 0 },
{ -1, 0 },
}
local cbox = {
type = "wallmounted",
wall_top = { -8/16, 7/16, -8/16, 8/16, 8/16, 8/16 },
wall_bottom = { -8/16, -8/16, -8/16, 8/16, -7/16, 8/16 },
wall_side = { -8/16, -8/16, -8/16, -7/16, 8/16, 8/16 }
}
local padding = " "
local allon = string.char(128)
for i = 1, 64 do
padding = padding.." "
allon = allon..string.char(144)
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 master_fdir = minetest.get_node(pos).param2 % 8
local master_meta = minetest.get_meta(pos)
local last_color = master_meta:get_int("last_color")
local pos2 = pos
if not last_color or last_color < 0 or last_color > 27 then
last_color = 0
master_meta:set_int("last_color", 0)
end
for i = 1, 64 do
local node = minetest.get_node(pos2)
local fdir = node.param2 % 8
local meta = minetest.get_meta(pos2)
local setchan = meta:get_string("channel")
if not string.match(node.name, "led_marquee:char_") or (setchan ~= nil and setchan ~= "" and setchan ~= channel) then break end
local asc = string.byte(padded_string, i, i)
if master_fdir == fdir and asc > 30 and asc < 256 then
minetest.swap_node(pos2, { name = "led_marquee:char_"..asc, param2 = master_fdir + (last_color*8)})
pos2.x = pos2.x + fdir_to_right[fdir+1][1]
pos2.z = pos2.z + fdir_to_right[fdir+1][2]
elseif asc < 28 then
last_color = asc
master_meta:set_int("last_color", asc)
end
end
end
local on_digiline_receive_string = function(pos, node, channel, msg)
local meta = minetest.get_meta(pos)
local setchan = meta:get_string("channel")
local last_color = meta:get_int("last_color")
if not last_color or last_color < 0 or last_color > 27 then
last_color = 0
meta:set_int("last_color", 0)
end
local fdir = node.param2 % 8
if setchan ~= channel then return end
if msg and msg ~= "" and type(msg) == "string" then
if string.len(msg) > 1 then
if msg == "off" then
minetest.swap_node(pos, { name = "led_marquee:char_32", param2 = fdir + (last_color*8)})
elseif msg == "colon" then
minetest.swap_node(pos, { name = "led_marquee:char_58", param2 = fdir + (last_color*8)})
elseif msg == "period" then
minetest.swap_node(pos, { name = "led_marquee:char_46", param2 = fdir + (last_color*8)})
elseif msg == "del" then
minetest.swap_node(pos, { name = "led_marquee:char_127", param2 = fdir + (last_color*8)})
elseif msg == "allon" then
minetest.swap_node(pos, { name = "led_marquee:char_144", param2 = fdir + (last_color*8)})
elseif msg == "cursor" then
minetest.swap_node(pos, { name = "led_marquee:char_31", param2 = fdir + (last_color*8)})
else
display_string(pos, channel, msg)
end
else
local asc = string.byte(msg)
if asc > 30 and asc < 256 then
minetest.swap_node(pos, { name = "led_marquee:char_"..asc, param2 = fdir + (last_color*8)})
elseif asc < 28 then
last_color = asc
meta:set_int("last_color", asc)
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,"led_marquee:char_(.+)"))) -- 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,"led_marquee:char_(.+)"))))
end
end
elseif msg and type(msg) == "number" then
if msg == 0 then
minetest.swap_node(pos, { name = "led_marquee:char_32", param2 = fdir + (last_color*8)})
elseif msg > 30 then
minetest.swap_node(pos, { name = "led_marquee:char_"..tostring(msg), param2 = fdir + (last_color*8)})
end
end
end
for i = 31, 255 do
local groups = { cracky = 2, not_in_creative_inventory = 1}
local light = LIGHT_MAX-2
local description = S("Alphanumeric LED marquee panel ("..i..")")
local tiles = {
{ name="led_marquee_base.png", color="white"},
{ name="led_marquee_leds_off.png", color="white"},
"led_marquee_char_"..i..".png",
}
if i == 31 then
tiles = {
{ name="led_marquee_base.png", color="white"},
{ name="led_marquee_leds_off.png", color="white"},
{
name = "led_marquee_char_31.png",
animation = {type = "vertical_frames", aspect_w = 32, aspect_h = 32, length = 0.75}
}
}
end
if i == 32 then
groups = {cracky = 2}
light = nil
description = S("Alphanumeric LED marquee panel")
end
minetest.register_node("led_marquee:char_"..i, {
description = description,
drawtype = "mesh",
mesh = "led_marquee.obj",
tiles = tiles,
palette="led_marquee_palette.png",
use_texture_alpha = true,
groups = groups,
paramtype = "light",
paramtype2 = "colorwallmounted",
light_source = light,
selection_box = cbox,
node_box = cbox,
on_construct = function(pos)
reset_meta(pos)
end,
on_receive_fields = function(pos, formname, fields, sender)
if (fields.channel) then
minetest.get_meta(pos):set_string("channel", fields.channel)
end
end,
digiline = {
receptor = {},
effector = {
action = on_digiline_receive_string,
},
},
drop = "led_marquee:char_32"
})
end
-- crafts
minetest.register_craft({
output = "led_marquee:char_32 6",
recipe = {
{ "default:glass", "default:glass", "default:glass" },
{ "mesecons_lamp:lamp_off", "mesecons_lamp:lamp_off", "mesecons_lamp:lamp_off" },
{ "group:wood", "mesecons_microcontroller:microcontroller0000", "group:wood" }
},
})
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