nalc/led_marquee
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fix glitch where first byte of msg gets skipped on scroll

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(causes color code to be displayed raw)
This commit is contained in:
Vanessa Dannenberg 2018-08-21 04:27:58 -04:00
parent cf94878a46
commit 3f98601875
1 changed files with 3 additions and 2 deletions
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5
init.lua
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@ -153,6 +153,7 @@ led_marquee.set_timer = function(pos, timeout)
end
led_marquee.scroll_text = function(pos, elapsed, skip)
skip = skip or 1
local meta = minetest.get_meta(pos)
local msg = meta:get_string("last_msg")
local channel = meta:get_string("channel")
@ -161,8 +162,8 @@ led_marquee.scroll_text = function(pos, elapsed, skip)
local colorchar = color_to_char[color+1]
if not index or index < 1 or not string.byte(msg, index) then index = 1 end
local len = string.len(msg)
skip = skip or 1
index = index + skip
if index > len then index = 1 end
-- search backward to find the most recent color code in the string
local r = index
@ -177,7 +178,7 @@ led_marquee.scroll_text = function(pos, elapsed, skip)
-- search forward to find the next printable symbol after the current index
local f = index
while f < len do
if string.match(string.sub(msg, f, f+1), "/[0-9A-Ra-r]") then
if string.match(string.sub(msg, f-1, f), "/[0-9A-Ra-r]") then
f = f + 2
else
break