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led_marquee
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fix fencepost error

This commit is contained in:
Vanessa Dannenberg 2018-08-17 15:43:13 -04:00
parent 06b419a905
commit 0cacd9af9c
1 changed files with 5 additions and 3 deletions
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8
init.lua
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@ -71,20 +71,22 @@ led_marquee.scroll_text = function(pos, elapsed)
local meta = minetest.get_meta(pos)
local msg = meta:get_string("last_msg")
local channel = meta:get_string("channel")
local index = meta:get_int("index") + 1
local index = meta:get_int("index")
if not index or index < 1 or not string.byte(msg, index) then index = 1 end
local len = string.len(msg)
index = index + 1
while string.byte(msg, index) < 28 and index < len do
while index < len and string.byte(msg, index) < 28 do
index = index + 1
if index > len then index = 1 break end
end
if string.byte(msg, index - 1) < 28 then
led_marquee.display_msg(pos, channel, string.sub(msg, index - 1).." ")
else
local i = index - 1
local color = ""
while string.byte(msg, i) > 27 and i > 0 do
while i > 0 and string.byte(msg, i) > 27 do
i = i - 1
if i == 0 then break end
end