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https://github.com/mt-mods/led_marquee.git
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multi-color support
send string.char(0 to 7) to change colors (red=0, orange, yellow, green, cyan, blue, purple, magenta=7) the panel remembers the last color used (saved in the meta of the left-most/"master" panel node)
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50
init.lua
50
init.lua
@ -56,45 +56,64 @@ local display_string = function(pos, channel, string)
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local padded_string = string.sub(string..padding, 1, 64)
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local fdir = minetest.get_node(pos).param2 % 4
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local pos2 = pos
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local mastermeta = minetest.get_meta(pos)
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local lastcolor = mastermeta:get_int("lastcolor")
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if not lastcolor or lastcolor < 0 or lastcolor > 7 then
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lastcolor = 0
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mastermeta:set_int("lastcolor", 0)
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end
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for i = 1, 64 do
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local node = minetest.get_node(pos2)
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local meta = minetest.get_meta(pos2)
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local setchan = meta:get_string("channel")
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if not string.match(node.name, "led_marquee:char_") or (setchan ~= nil and setchan ~= "" and setchan ~= channel) then break end
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local asc = string.byte(padded_string, i, i)
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if (node.param2 % 4) == fdir and asc > 31 and asc < 130 then
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minetest.swap_node(pos2, { name = "led_marquee:char_"..asc, param2 = node.param2})
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minetest.swap_node(pos2, { name = "led_marquee:char_"..asc, param2 = (node.param2 % 4) + (lastcolor*32)})
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pos2.x = pos2.x + fdir_to_right[fdir+1][1]
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pos2.z = pos2.z + fdir_to_right[fdir+1][2]
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elseif asc < 8 then
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lastcolor = asc
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mastermeta:set_int("lastcolor", asc)
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end
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pos2.x = pos2.x + fdir_to_right[fdir+1][1]
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pos2.z = pos2.z + fdir_to_right[fdir+1][2]
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end
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end
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local on_digiline_receive_string = function(pos, node, 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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local lastcolor = meta:get_int("lastcolor")
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if not lastcolor or lastcolor < 0 or lastcolor > 7 then
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lastcolor = 0
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meta:set_int("lastcolor", 0)
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end
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if setchan ~= channel then return end
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if msg and msg ~= "" and type(msg) == "string" then
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if string.len(msg) > 1 then
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if msg == "off" then
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minetest.swap_node(pos, { name = "led_marquee:char_32", param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_32", param2 = (node.param2 % 4) + (lastcolor*32)})
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elseif msg == "colon" then
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minetest.swap_node(pos, { name = "led_marquee:char_58", param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_58", param2 = (node.param2 % 4) + (lastcolor*32)})
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elseif msg == "period" then
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minetest.swap_node(pos, { name = "led_marquee:char_46", param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_46", param2 = (node.param2 % 4) + (lastcolor*32)})
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elseif msg == "del" then
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minetest.swap_node(pos, { name = "led_marquee:char_127", param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_127", param2 = (node.param2 % 4) + (lastcolor*32)})
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elseif msg == "allon" then
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minetest.swap_node(pos, { name = "led_marquee:char_128", param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_128", param2 = (node.param2 % 4) + (lastcolor*32)})
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elseif msg == "cursor" then
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minetest.swap_node(pos, { name = "led_marquee:char_129", param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_129", param2 = (node.param2 % 4) + (lastcolor*32)})
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else
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display_string(pos, channel, msg)
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end
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else
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local asc = string.byte(msg)
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if asc > 31 and asc < 130 then
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minetest.swap_node(pos, { name = "led_marquee:char_"..asc, param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_"..asc, param2 = (node.param2 % 4) + (lastcolor*32)})
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elseif asc < 8 then
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lastcolor = asc
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meta:set_int("lastcolor", asc)
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elseif msg == "get" then -- get value as ASCII numerical value
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digiline:receptor_send(pos, digiline.rules.default, channel, tonumber(string.match(minetest.get_node(pos).name,"led_marquee:char_(.+)"))) -- wonderfully horrible string manipulaiton
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elseif msg == "getstr" then -- get actual char
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@ -103,9 +122,9 @@ local on_digiline_receive_string = function(pos, node, channel, msg)
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end
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elseif msg and type(msg) == "number" then
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if msg == 0 then
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minetest.swap_node(pos, { name = "led_marquee:char_32", param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_32", param2 = (node.param2 % 4) + (lastcolor*32)})
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elseif msg > 31 and alnum_chars[msg - 31] ~= nil then
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minetest.swap_node(pos, { name = "led_marquee:char_"..tostring(msg), param2 = node.param2})
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minetest.swap_node(pos, { name = "led_marquee:char_"..tostring(msg), param2 = (node.param2 % 4) + (lastcolor*32)})
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end
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end
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end
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@ -126,10 +145,11 @@ for i = 32, 129 do
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drawtype = "mesh",
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mesh = "led_marquee.obj",
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tiles = {
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"led_marquee_base.png",
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"led_marquee_leds_off.png",
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{ name="led_marquee_char_"..i..".png", color="0xffff0000"},
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{ name="led_marquee_base.png", color="white"},
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{ name="led_marquee_leds_off.png", color="white"},
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"led_marquee_char_"..i..".png",
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},
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palette="palette.png",
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use_texture_alpha = true,
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groups = groups,
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paramtype = "light",
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