Useful Tutorials & Resources

View this list on Google Drive

1. Installing ComputerCraft
• TangentDelta's Windows Video

• Getting Started/Tutorials
1. New to Lua? Read this (Important chapters: 2-7, read the rest once you understand that; Part IV is not important for CC): Programming in Lua (*Does not cover Computercraft; but will get you familiar with Lua)
2. Casper's Interactive Tutorial
3. How to use Modems (by Casper7526)
4. Frequently Asked Questions (by Bubba)

• Doing Various Stuff
1. Debugging (i.e I get errors when running my code!): Advert's Codex of Error Slaying
2. Creating an API (by Advert)
3. Preventing Your Program From Being Terminated (CTRL-T) (by Espen)
4. Keycode map for os.pullEvent('key')
5. We need MOAR! Post a nice tutorial, and maybe it'll be added here!

• I don't see what I'm looking for here! Unfortunately, since this thread is young, it does not have a wealth of knowledge to share. Create a new thread; or post a topic asking! More stuff will be added as it is created. Tutorials wanted:

• Installing Programs To Your Computer
• Saving/writing to files
• Making some commonly requested programs: i.e 'Lock' program, …

Updates:
1/29/2013: Corrected link for Keycode list.
3/6/2012: Added Keycode list.
2/20/2012: Moved How to Create an API to it's own thread.
2/26/2012: Added Modem tutorial; Fixed error due to forums eating numbers.

Sticky?

FuzzyPurp, on 20 February 2012 - 02:46 PM said:

Sticky?

Once I add some more stuff to it, I guess ;)/>/>

I'm currently rewriting / improving my post about preventing program terminations, including an explanation for the reasons and an additional solution.
Initially I planned on just posting it in the old thread as a followup.
Shall I post it as a tutorial for your list instead? I'd PM it to you beforehand.

Espen, on 20 February 2012 - 05:31 PM said:

I'm currently rewriting / improving my post about preventing program terminations, including an explanation for the reasons and an additional solution.
Initially I planned on just posting it in the old thread as a followup.
Shall I post it as a tutorial for your list instead? I'd PM it to you beforehand.

That would be awesome; but you need not PM it to me (I wouldn't mind proof-reading it, though), you can post a thread in the tutorial section, then I'll update this with a link to it ;)/>/>

Anyone has got problems if I translate some of them to german so that non-english speakers can use them too?

luza, on 21 February 2012 - 01:24 PM said:

Anyone has got problems if I translate some of them to german so that non-english speakers can use them too?

I don't have a problem with you translating my stuff; but you should ask each author individually.

luza, on 21 February 2012 - 01:24 PM said:

Anyone has got problems if I translate some of them to german so that non-english speakers can use them too?

Web browsers should auto translate or ask to their native language. May be unnecessary.

FuzzyPurp, on 21 February 2012 - 02:58 PM said:

luza, on 21 February 2012 - 01:24 PM said:

Anyone has got problems if I translate some of them to german so that non-english speakers can use them too?

Web browsers should auto translate or ask to their native language. May be unnecessary.

No. Just no. Have you seen what that translation comes up with?

Advert, on 21 February 2012 - 02:58 PM said:

FuzzyPurp, on 21 February 2012 - 02:58 PM said:

luza, on 21 February 2012 - 01:24 PM said:

Anyone has got problems if I translate some of them to german so that non-english speakers can use them too?

Web browsers should auto translate or ask to their native language. May be unnecessary.

No. Just no. Have you seen what that translation comes up with?

Haha no, i only know English & Spanish.

Advert, on 21 February 2012 - 02:58 PM said:

FuzzyPurp, on 21 February 2012 - 02:58 PM said:

luza, on 21 February 2012 - 01:24 PM said:

Anyone has got problems if I translate some of them to german so that non-english speakers can use them too?

Web browsers should auto translate or ask to their native language. May be unnecessary.

No. Just no. Have you seen what that translation comes up with?

exspecially because all the programming terms are in english and the browser will try to translate them aswell.

is it awaylable to code a program with that you can send a redstone signal for a time and than set pause and start again after a time??

@schrolock:
This will turn on the redstone output on the back of the computer for .5 seconds and then turn it off again.
Then it will wait for 1 second and repeat the process. It will do all of this in an infinite loop.

local pulseLength = 0.5 -- Length of redstone pulse in seconds.
local delayLength = 1   -- Length of delay between pulses in seconds.
local side = "back"	 -- Side of the computer we want to control redstone signals for.

while true do
  redstone.setOutput( side, true )
  sleep( pulseLength )
  redstone.setOutput( side, false )
  sleep( delayLength )
end

Now, if you want to be able to listen for events while the redstone pulses, then it gets a bit more complicated.
Because sleep() waits itself for an event, we can't use it if we wait for events ourselves.
Well, we could, but then our event loop wouldn't be interactive and we would always have to wait until sleep() finishes.
Therefore we can implement sleep() ourselves by making use of os.startTimer() instead:

local pulseLength = 0.5 -- Length of redstone pulse in seconds.
local delayLength = 1   -- Length of delay between pulses in seconds.
local side = "back"	 -- Side of the computer we want to control redstone signals for.

local pulseTimer = os.startTimer( pulseLength )
local delayTimer
redstone.setOutput( side, true )	-- Redstone initially turned on (will be turned back off after the first time pulseTimer fires).
while true do
  local sEvent, param = os.pullEvent()

  if sEvent == "timer" and param == pulseTimer then
	redstone.setOutput( side, false )   -- Turn off redstone output
	delayTimer = os.startTimer( delayLength )   -- (Re-)Start delayTimer.
  end

  if sEvent == "timer" and param == delayTimer then
	redstone.setOutput( side, true )	-- Turn on redstone output
	pulseTimer = os.startTimer( pulseLength )   -- Restart pulseTimer.
  end

  if sEvent == "char" and param == "q" then break end
end

Yet another (and for some use cases easier) way would be to make use of the 'parallel' API and let both the redstone pulse and our own event listener run in spearate threads.
We have to wrap their respective code in functions then, though:

function redstonePulser()
  local pulseLength = .5 -- Length of redstone pulse in seconds.
  local delayLength = 1   -- Length of delay between pulses in seconds.
  local side = "back"	  -- Side of the computer we want to control redstone signals for.

  while true do
	redstone.setOutput( side, true )
	sleep( pulseLength )
	redstone.setOutput( side, false )
	sleep( delayLength )
  end
end

function eventProcessing()
  local side = "back"	 -- Side of the computer we want to control redstone signals for.
  local maxProgramTimer = os.startTimer( 60 )

  while true do
	local sEvent, param = os.pullEvent()
	
	if sEvent == "char" and param == "q" then   -- 'q' breaks out of the loop, ends the function and therefore the whole program.
	  break
	end
	
	if sEvent == "timer" and param == maxProgramTimer then  -- After 60 seconds, breaks out of the loop, ends the function and therefore the whole program.
	  break
	end
  end
end

parallel.waitForAny( redstonePulser, eventProcessing )

I start translating this post after school. Into german
Sry for double posting but here is the translation

• ComputerCraft installieren
• TangentDelta's Windows Video

• Anfang/Tutorials
• Neu in Lua? Lies das (Wichtige Kapitel: 2-7, lies den Rest wenn du das verstehst; Teil IV ist nicht wichtig für CC): Programming in Lua (*Hat nichts mit CC zu tun sondern macht dich mit Lua vertraut)
• Caspers Interaktives Tutorial - Englisch
• Wie benutzt man Modems?(by Casper7526) - Englisch

• Verschiedene Dinge
• Debugging (Fehler im Code finden/beseitigen!): Advert's Codex of Error Slaying - Englisch
• Eine API erstellen (von Advert) - Englisch
• Terminate Shutz erstellen (CTRL-T) (von Espen) - Englisch
• KeyCodes für os.pullEvent('key') - Englisch
• Wir brauchen mehr! Poste hier ein nettes Tutorial(Englisch) und vielleicht nehmen wir es auf
• Ich finde nicht was ich suche!
Da der Thread noch jung ist gibt es hier noch nicht soviel Wissen. Erstelle einen neuen Thread; oder schreibe ein Thema Posting! Mehr Sachen werden hinzugefügt wenn etwas geschrieben wird. gesuchte Tutorials:

• Programme auf Computer installieren
• Speichern/Schreiben von Dateien
• Ein paar gefragte Programme erstellen, zum Beispiel Passwort-Schlösser, …

Updates:
6.3.2012: Keycodeliste hinzugefügt.
20.2.2012: How to create an API in eigenen Thread verschoben.
26.2.2012: Modemtutorial hinzugefügt; Fehler von verschwunden Nummern behoben.


Translation Updates:
13.03.2012: Erstmals veröffentlicht; Links behoben
[right]Translation into german by Wolvan[/right]

You killed some links :mellow:/>/>.

Advert, on 13 March 2012 - 02:08 PM said:

You killed some links :D/>/>.

Sry but no. I fixed them already

Advert, on 20 February 2012 - 02:34 PM said:

Tutorials wanted:

• Installing Programs To Your Computer
• Saving/writing to files
• Making some commonly requested programs: i.e 'Lock' program

when you say installing programs, what do u mean? as in getting from pastebin? or having one program load another program onto like a turtle?

Advert, on 20 February 2012 - 02:34 PM said:

Tutorials wanted:

• Installing Programs To Your Computer
• Saving/writing to files
• Making some commonly requested programs: i.e 'Lock' program, …

Same question, Installing programs to your computer? Do you mean the actual physical computer? like /appdata/minecraft/saves… folder?
Saving/writing files. Do you mean the fs api, like saving and loading data? or backing up files?
and could you provide a commonly requested programs list?

Lyqyd, I saw you added keycode map, link to the one on CC wiki rather than MC wiki, it is more correct(numpad enter)

Doyle3694, on 28 January 2013 - 04:37 AM said:

Lyqyd, I saw you added keycode map, link to the one on CC wiki rather than MC wiki, it is more correct(numpad enter)

I don't believe it was me who added the map (though perhaps it was, dunno). Either way, it links to the correct place now.

Tutorial Request: Creating clickable buttons in ComputerCraft. It seems we have gotten a strong uptick in the frequency of these questions in the past week or so, so I'd appreciate it if someone could (create and) link one here. If it is a high-quality tutorial, it may be added to the OP of this topic. I'm going to try to put together a few tutorials for common questions and get them in the OP. Hopefully, we can cut down on the number of repeat questions.

You guys should include this tutorial
http://www.computercraft.info/forums2/index.php?/topic/10654-storing-variables-in-a-file/page__fromsearch__1
Storing variables in a file by LBPHacker

Engineer, on 11 March 2013 - 08:04 AM said:

You guys should include this tutorial
http://www.computerc...__fromsearch__1
Storing variables in a file by LBPHacker

Why thanks! :D/>

Hmmmm… Just have realized that this topic actually exists…

Lyqyd, on 02 February 2013 - 10:09 AM said:

Creating clickable buttons in ComputerCraft.

Challenge accepted!

LBPHacker, on 11 March 2013 - 08:15 AM said:

Hmmmm… Just have realized that this topic actually exists…

Lyqyd, on 02 February 2013 - 10:09 AM said:

Creating clickable buttons in ComputerCraft.

Challenge accepted!

LOL was about to write one :P/>

We'll see wich one is better
xD

Ummm… One quesition… Should I write an API or something like that? Not sure if I can explain buttons and basic GUI with a simple tutorial…

Direwolf20's Computercraft Tutorial Vids:http://www.youtube.com/watch?v=wrUHUhfCY5A&feature=share&list=PLaiPn4ewcbkHYflo2jl0OuNaHK6Mj-koG
For his button api:http://youtu.be/1nuMDtmnEjg