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COPYING
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COPYING
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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or
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distribute this software, either in source code form or as a compiled
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binary, for any purpose, commercial or non-commercial, and by any
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means.
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In jurisdictions that recognize copyright laws, the author or authors
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of this software dedicate any and all copyright interest in the
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software to the public domain. We make this dedication for the benefit
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of the public at large and to the detriment of our heirs and
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successors. We intend this dedication to be an overt act of
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relinquishment in perpetuity of all present and future rights to this
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software under copyright law.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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For more information, please refer to <http://unlicense.org/>
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-------------------
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The font was originally by, to the best of my knowledge, gbl08ma.
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The font was originally licensed under the WTFPL, and I believe that
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this allows me to relicense it under the terms of the above license.
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16
README
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README
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Digilines Graphical Screen for Minetest
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=======================================
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How to use:
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1. Place one and set the channel
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2. Send an image (see below for the format)
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3. Image will be displayed on the screen
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Image format:
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(this is the same as rgblightstone in group mode)
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Images consist of tables, containing one table for each row with keys numbered from 1 to 16.
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Within each row are 16 strings, one for each pixel in the row, with keys numbered from 1 to 16.
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Each string contains the color for that pixel as a 6-digit hex color, with optional "#" prefix.
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Invalid or omitted pixels or rows will appear as black, and excess pixels or rows will be discarded.
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157
init.lua
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init.lua
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local function removeEntity(pos)
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local entitiesNearby = minetest.get_objects_inside_radius(pos,0.5)
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for _,i in pairs(entitiesNearby) do
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if i:get_luaentity() and i:get_luaentity().name == "digiscreen:image" then
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i:remove()
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end
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end
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end
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local function generateTexture(pos,serdata)
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--The data *should* always be valid, but it pays to double-check anyway due to how easily this could crash if something did go wrong
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if type(serdata) ~= "string" then
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minetest.log("error","[digiscreen] Serialized display data appears to be missing at "..minetest.pos_to_string(pos,0))
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return
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end
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local data = minetest.deserialize(serdata)
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if type(data) ~= "table" then
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minetest.log("error","[digiscreen] Failed to deserialize display data at "..minetest.pos_to_string(pos,0))
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return
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end
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for y=1,16,1 do
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if type(data[y]) ~= "table" then
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minetest.log("error","[digiscreen] Invalid row "..y.." at "..minetest.pos_to_string(pos,0))
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return
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end
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for x=1,16,1 do
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if type(data[y][x]) ~= "string" or string.len(data[y][x]) ~= 6 then
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minetest.log("error","[digiscreen] Missing/wrong length display data for X="..x.." Y="..y.." at "..minetest.pos_to_string(pos,0))
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return
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end
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for i=1,6,1 do
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if not tonumber(string.sub(data[y][x],i,i),16) then
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minetest.log("error","[digiscreen] Invalid digit in display data for X="..x.." Y="..y.." at "..minetest.pos_to_string(pos,0))
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return
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end
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end
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end
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end
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local ret = "[combine:16x16"
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for y=1,16,1 do
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for x=1,16,1 do
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ret = ret..string.format(":%d,%d=(digiscreen_pixel.png\\^[colorize\\:#%s\\:255)",x-1,y-1,data[y][x])
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end
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end
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return ret
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end
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local function updateDisplay(pos)
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removeEntity(pos)
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local meta = minetest.get_meta(pos)
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local data = meta:get_string("data")
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local entity = minetest.add_entity(pos,"digiscreen:image")
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local fdir = minetest.facedir_to_dir(minetest.get_node(pos).param2)
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local etex = "digiscreen_pixel.png"
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etex = generateTexture(pos,data) or etex
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entity:set_properties({textures={etex}})
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entity:set_yaw((fdir.x ~= 0) and math.pi/2 or 0)
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entity:set_pos(vector.add(pos,vector.multiply(fdir,0.39)))
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end
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minetest.register_entity("digiscreen:image",{
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initial_properties = {
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visual = "upright_sprite",
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physical = false,
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collisionbox = {0,0,0,0,0,0,},
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textures = {"digiscreen_pixel.png",},
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},
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})
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minetest.register_node("digiscreen:digiscreen",{
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description = "Digilines Graphical Display",
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tiles = {"digiscreen_pixel.png",},
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groups = {cracky = 3,},
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paramtype = "light",
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paramtype2 = "facedir",
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on_rotate = minetest.global_exists("screwdriver") and screwdriver.rotate_simple,
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drawtype = "nodebox",
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node_box = {
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type = "fixed",
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fixed = {-0.5,-0.5,0.4,0.5,0.5,0.5},
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},
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light_source = 10,
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_string("formspec","field[channel;Channel;${channel}]")
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local disp = {}
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for y=1,16,1 do
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disp[y] = {}
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for x=1,16,1 do
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disp[y][x] = "000000"
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end
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end
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meta:set_string("data",minetest.serialize(disp))
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updateDisplay(pos)
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end,
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on_destruct = removeEntity,
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on_receive_fields = function(pos,_,fields,sender)
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local name = sender:get_player_name()
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if not fields.channel then return end
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if minetest.is_protected(pos,name) and not minetest.check_player_privs(name,"protection_bypass") then
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minetest.record_protection_violation(pos,name)
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return
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end
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local meta = minetest.get_meta(pos)
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meta:set_string("channel",fields.channel)
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end,
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digiline = {
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wire = {
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rules = digiline.rules.default,
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},
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effector = {
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action = function(pos,_,channel,msg)
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local meta = minetest.get_meta(pos)
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local setchan = meta:get_string("channel")
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if type(msg) ~= "table" or setchan ~= channel then return end
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local data = {}
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for y=1,16,1 do
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data[y] = {}
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if type(msg[y]) ~= "table" then msg[y] = {} end
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for x=1,16,1 do
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if type(msg[y][x]) == "string" and string.len(msg[y][x]) == 7 and string.sub(msg[y][x],1,1) == "#" then
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msg[y][x] = string.sub(msg[y][x],2,-1)
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end
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if type(msg[y][x]) ~= "string" or string.len(msg[y][x]) ~= 6 then msg[y][x] = "000000" end
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msg[y][x] = string.upper(msg[y][x])
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for i=1,6,1 do
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if not tonumber(string.sub(msg[y][x],i,i),16) then
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msg[y][x] = "000000"
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end
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end
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data[y][x] = msg[y][x]
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end
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end
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meta:set_string("data",minetest.serialize(data))
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updateDisplay(pos)
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end,
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},
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},
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})
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minetest.register_lbm({
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name = "digiscreen:respawn",
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label = "Respawn digiscreen entities",
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nodenames = {"digiscreen:digiscreen"},
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run_at_every_load = true,
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action = updateDisplay,
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})
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minetest.register_craft({
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output = "digiscreen:digiscreen",
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recipe = {
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{"mesecons_luacontroller:luacontroller0000","rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0",},
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{"rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0",},
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{"rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0",},
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},
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})
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4
mod.conf
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4
mod.conf
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name = digiscreen
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description = Digilines Graphical Screen
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depends = digilines
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optional_depends = screwdriver
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BIN
textures/digiscreen_bg.png
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BIN
textures/digiscreen_bg.png
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Binary file not shown.
After Width: | Height: | Size: 1.3 KiB |
BIN
textures/digiscreen_pixel.png
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BIN
textures/digiscreen_pixel.png
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Binary file not shown.
After Width: | Height: | Size: 546 B |
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