collection of usfull scripts

basic clock that prints on a monitor

while true do
side = "" -- Top, bottom, left, right, front, back, WHATEVER YOU CHOOSE
local time = os.time()
time = textutils.formatTime(time, false)
mon = peripheral.wrap(side, true)
mon.setTextScale(5)
mon.setCursorPos(1,1)
mon.write(time)
sleep(0.1)
mon.clear()
end

Quick suggestion: Make a variable for the side instead of using "top" because anyone who uses it will wrap on top. You want this to be a choice.

and how would i go about doin that i only started using computer craft 2 days ago and still learning lua

Add this at the top

side = "" -- Top, bottom, left, right, front, back, WHATEVER YOU CHOOSE

Then make the "top"; side

do u think it would be possible to make a day counter

Yes, do an if statement.

if os.time() == 12 then
day = day + 1
end

Something like that… I'm not really familiar with the whole os.time().

too long without yeilding

Did you get rid of the sleep? You need the sleep (if not event) for a while true loop.

i think iv fixed it

local time = os.time()
if time == 23 then
day = day+1
else
side = "top" -- Top, bottom, left, right, front, back, WHATEVER YOU CHOOSE
time = textutils.formatTime(time, false)
mon = peripheral.wrap(side, true)
mon.setTextScale(5)
mon.setCursorPos(1,1)
mon.write(time)
mon.setCursorPos(1,2)
mon.write("Day="..day)
sleep(0.1)
mon.clear()
shell.run("startup")
end

nope still getting errors any advice

Well, first of all, please say what the error actually is.

If the error is

name:10: attempt to concatenate string and nil

then it is because you never defined the base value for day, making its value nil (an empty variable).

Currently, the only mention of day before the line that this error occurs on (10), is this:

if time == 23 then
day = day+1

(Just a note, the way the code is set up right now doesn't really make sense. Why would it not print if it's a new day?)

You need to assign day to 1 before this:

local day = 1

Other than this, why are you running startup all over again? This doesn't really work well, as the user may not want to run it on startup. This is a version of the script with some fixes:

local tArgs = { ... } -- This gets arguments after "filename", i.e. "<filename> <side>"

assert(#tArgs == 1,"Usage: <name> <side>") -- If tArgs has more or less than 1 element, print "Usage: <name> <side>" and terminate.

while true do
local time = os.time()
local day = 1

if time == 23 then
day = day+1
end

time = textutils.formatTime(time, false)
mon = peripheral.wrap(tArgs[1], true)
mon.setTextScale(5)
mon.setCursorPos(1,1)
mon.write(time)
mon.setCursorPos(1,2)
mon.write("Day: "..day)
sleep(0.1)
mon.clear()
end
end

If there's anything new in the script that I didn't fully explain, feel free to ask.

wen it gets to 11pm it gos to 2 then jumps back up to 1

What you mean resets to 0 then jumps 1?
Like day = 0, day = 1?

because

local day = 1

is under

while true do

so its looping and reseting

twig1233, on 27 July 2012 - 01:43 AM said:

because

local day = 1

is under

while true do

so its looping and reseting

Whoops, sorry. You can easily fix that yourself, though, I reckon.

How would I go about doin that, like I said the other day im new to lua, java is more my cup of tea.