Initial commit

LICENSE

@@ -0,0 +1,191 @@
+(This file copied from Digilines mod)
+
+The LGPLv3 applies to all code in this project.
+The WTFPL applies to textures and any other content in this project which is
+not source code.
+
+=============================================================
+
+GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
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+Library as you received it specifies that a certain numbered version
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+
+
+=============================================================
+
+
+ DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
+                    Version 2, December 2004 
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net> 
+
+ Everyone is permitted to copy and distribute verbatim or modified 
+ copies of this license document, and changing it is allowed as long 
+ as the name is changed. 
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.

README.md

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+# LED marquee mod 
+
+*by Vanessa Dannenberg*
+
+This mod provides set of alphanumeric LED marquee panels, controlled by Mesecons' Digilines mod.
+
+Simply place a panel segment, right-click it, and set a channel.
+
+Then send a character, or one of several control words to that channel from a Mesecons Lua Controller and the mod will try to display it.
+
+The panels respond to singular characters from the standard 7-bit ASCII character set, or entire strings composed of such.
+
+A single character will be displayed on the connected panel.
+
+Strings will be displayed to all panels in a lineup, so long as they all face the same way, starting from the panel the Lua Controller is connected to, going left to right.  The other panels in the line do not need to be connected to anything - think of them as being connected together internally.  Only the panel at the far left need be connected to the Lua Controller.
+
+The string will spread until either a panel is found that faces the wrong way, or 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 panel at all.
+
+Panels to the left of the connected one are ignored in the case of strings.
+
+You can put multiple lines of panels end to end to form independent displays, so long as the panels that start each of the lines have unique channel names set.
+
+The string is padded with spaces and then trimmed to 64 characters.
+
+Any unrecognized symbol or character outside the ASCII 32 - 129 range, whether part of a string or singularly is ignored.
+
+The panels also respond to these control messages:
+
+* "off", "colon" and "period" act the same as on the numeric panels.  Note that neither a colon nor a period actually look all that great on a 15-segment
+  display, so use a classic panel for those, if you can.
+* "del" or character code 127 displays an all-on square, but without segment #15 (the bottom, chevron-shaped one).
+* "allon" or character code 128 will display an all-on square, with segment #15 lit also.
+* "cursor" or character code 129 will display just segment 15.
+* "off_multi" turns all panels in a lineup off
+* "allon_multi" turns on all segments of all panels in a lineup.
+
+You can use "get" and "getstr" to read the one character from the first, connected panel.  These messages will not read the other panels in the lineup.
+
+All panels emit a small amount of light when displaying something.
+
+The panels only mount on a wall.

depends.txt

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+default
+digilines

description.txt

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+This mod provides a simple LED marquee that accepts single characters, strings, and special control words via digilines.

init.lua

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+-- simple LED marquee mod
+-- by Vanessa Dannenberg
+
+led_marquee = {}
+
+local S
+if minetest.get_modpath("intllib") then
+	S = intllib.Getter()
+else
+	S = function(s) return s end
+end
+
+local marquee_cbox = {
+	type = "fixed",
+	fixed = { -16/32, -8/16, 15/32, 16/32, 8/16, 16/32 }
+}
+
+-- 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 = {
+	{  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, "led_marquee:char_") or (setchan ~= nil and setchan ~= "" and setchan ~= channel) then break end
+		local asc = string.byte(padded_string, i, i)
+		if (node.param2 % 4) == fdir and asc > 31 and asc < 130 then
+			minetest.swap_node(pos2, { name = "led_marquee:char_"..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_string = 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
+		if string.len(msg) > 1 then
+			if msg == "off" then
+				minetest.swap_node(pos, { name = "led_marquee:char_32", param2 = node.param2})
+			elseif msg == "colon" then
+				minetest.swap_node(pos, { name = "led_marquee:char_58", param2 = node.param2})
+			elseif msg == "period" then
+				minetest.swap_node(pos, { name = "led_marquee:char_46", param2 = node.param2})
+			elseif msg == "del" then
+				minetest.swap_node(pos, { name = "led_marquee:char_127", param2 = node.param2})
+			elseif msg == "allon" then
+				minetest.swap_node(pos, { name = "led_marquee:char_128", param2 = node.param2})
+			elseif msg == "cursor" then
+				minetest.swap_node(pos, { name = "led_marquee:char_129", param2 = node.param2})
+			else
+				display_string(pos, channel, msg)
+			end
+		else
+			local asc = string.byte(msg)
+			if asc > 31 and asc < 130 then
+				minetest.swap_node(pos, { name = "led_marquee:char_"..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,"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 = node.param2})
+		elseif msg > 31 and alnum_chars[msg - 31] ~= nil then
+			minetest.swap_node(pos, { name = "led_marquee:char_"..tostring(msg), param2 = node.param2})
+		end
+	end
+end
+
+for i = 32, 129 do
+	local groups = { cracky = 2, not_in_creative_inventory = 1}
+	local light = LIGHT_MAX-2
+	local description = S("Alphanumeric LED marquee panel ("..i..")")
+
+	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 = {
+			"led_marquee_base.png",
+			"led_marquee_leds_off.png",
+			{ name="led_marquee_char_"..i..".png", color="0xffff0000"},
+		},
+		use_texture_alpha = true,
+		groups = groups,
+		paramtype = "light",
+		paramtype2 = "colorfacedir",
+		light_source = light,
+		selection_box = marquee_cbox,
+		collision_box = marquee_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 4",
+	recipe = {
+		{ "", "default:glass", "" },
+		{ "default:glass", "default:sign_wall", "default:glass" },
+		{ "default:glass", "default:mese_crystal", "default:glass" }
+	},
+})
+

mod.conf

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+name = led_marquee

models/led_marquee.obj

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+# Blender v2.79 (sub 0) OBJ File: 'LED marquee.blend'
+# www.blender.org
+o Cube_Cube_LEDs
+v 0.500000 -0.468750 0.453125
+v -0.500000 -0.468750 0.453125
+v -0.500000 0.468750 0.453125
+v 0.500000 0.468750 0.453125
+v 0.500000 -0.500000 0.437500
+v 0.500000 -0.484375 0.437500
+v 0.500000 -0.468750 0.453125
+v 0.500000 0.468750 0.453125
+v 0.500000 0.484375 0.437500
+v 0.500000 0.500000 0.437500
+v 0.500000 0.500000 0.500000
+v 0.500000 -0.500000 0.500000
+v -0.500000 0.500000 0.500000
+v -0.500000 -0.500000 0.500000
+v -0.500000 0.500000 0.437500
+v -0.500000 0.484375 0.437500
+v -0.500000 0.468750 0.453125
+v -0.500000 -0.468750 0.453125
+v -0.500000 -0.484375 0.437500
+v -0.500000 -0.500000 0.437500
+v 0.500000 -0.468750 0.449125
+v -0.500000 -0.468750 0.449125
+v -0.500000 0.468750 0.449125
+v 0.500000 0.468750 0.449125
+vt 0.667843 0.000000
+vt 0.667843 0.015513
+vt 0.681855 0.031026
+vt 0.681855 0.961799
+vt 0.667843 0.977312
+vt 0.667843 0.992824
+vt 0.723891 0.992824
+vt 0.723891 0.000000
+vt 1.000000 0.007175
+vt 1.000000 1.000000
+vt 0.103234 1.000000
+vt 0.103234 0.007175
+vt 0.723891 0.000000
+vt 0.723891 0.992824
+vt 0.667843 0.992824
+vt 0.667843 0.977312
+vt 0.681855 0.961799
+vt 0.681855 0.031026
+vt 0.667843 0.015513
+vt 0.667843 0.000000
+vt 0.003280 0.226388
+vt 0.900045 0.226388
+vt 0.900045 0.164337
+vt 0.003280 0.164337
+vt 0.900045 0.226388
+vt 0.003280 0.226388
+vt 0.003280 0.164337
+vt 0.900045 0.164337
+vt 1.000000 -0.000000
+vt 1.000000 0.017400
+vt 0.000000 0.017400
+vt 0.000000 -0.000000
+vt 1.000000 0.982506
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vt 0.000000 0.982506
+vt 0.000000 0.965011
+vt 1.000000 0.965011
+vt 1.000000 0.034801
+vt 0.000000 0.034801
+vt 0.000000 0.000000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vt 0.000000 0.000000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vn 1.0000 0.0000 -0.0000
+vn 0.0000 -0.0000 1.0000
+vn -1.0000 -0.0000 0.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+vn -0.0000 0.0000 -1.0000
+vn -0.0000 -0.7071 -0.7071
+vn -0.0000 0.7071 -0.7071
+g Cube_Cube_LEDs_Cube_Cube_LEDs_base
+s off
+f 5/1/1 6/2/1 7/3/1 8/4/1 9/5/1 10/6/1 11/7/1 12/8/1
+f 12/9/2 11/10/2 13/11/2 14/12/2
+f 14/13/3 13/14/3 15/15/3 16/16/3 17/17/3 18/18/3 19/19/3 20/20/3
+f 12/21/4 14/22/4 20/23/4 5/24/4
+f 13/25/5 11/26/5 10/27/5 15/28/5
+f 20/29/6 19/30/6 6/31/6 5/32/6
+f 16/33/6 15/34/6 10/35/6 9/36/6
+f 9/36/7 8/37/7 17/38/7 16/33/7
+f 18/39/8 7/40/8 6/31/8 19/30/8
+g Cube_Cube_LEDs_Cube_Cube_LEDs_leds_off
+f 1/41/6 2/42/6 3/43/6 4/44/6
+g Cube_Cube_LEDs_Cube_Cube_LEDs_leds_on
+f 21/45/6 22/46/6 23/47/6 24/48/6