[Command computers] Get player table from @a - ComputerCraft Forums (archive)

Goof #1

Goof's profile picture

767 posts

Posted 10 April 2015 - 10:22 PM

Hey!

me and some friends are testing the command computers, and tried to gather a table of players nearby, by using some command, and "@a[r=5]" – all players within 5 blocks from the computer…

But this just returned:


true
{}

Any solutions?

Thanks in Advance

MKlegoman357 #2

1140 posts

Location Kaunas, Lithuania

Posted 10 April 2015 - 10:47 PM

~~Dynamically getting a player list is sadly impossible by Command Computers.~~

EDIT: looks like it is possible, look below for the answer.

Edited on 11 April 2015 - 07:12 AM

HPWebcamAble #3

957 posts

Location Web Development

Posted 10 April 2015 - 10:52 PM

What command did you use?

MKlegoman357, on 10 April 2015 - 10:47 PM said:
Dynamically getting a player list is sadly impossible by Command Computers.

Well… It isn't impossible, but my solution isn't very elegant

You can run this command:


commands.exec("tp @a ~ ~ ~")

It should return true, then a table in this format:


{
  "Teleported player to x.0, y.0, z.0",
  "Teleported player2 to x.0, y.0, z.0",
  ect
}

You should be able to use a Lua pattern to get the player from each entry

If you use ~ ~ ~ as the location, it SHOULDN'T move the player, but your screen does jiggle a bit in 1.7, its fixed in MC 1.8

I was trying things like 'tellraw', but I think /tp is one of they only commands that gives you the names

Goof #4

Goof's profile picture

767 posts

Posted 10 April 2015 - 11:16 PM

well I just found out, that the "tell @a[r=5] @a[r=5]" actually Does return player names…
And then it just needs to be formatted into a table, and then its done!

This question is solved.
but.
Another question is revealed:
Is it possible to use /tell [computercraft] @a[r=5]
instead of spamming the players within 5 blocks?

like a 'fake-player'
?

HPWebcamAble #5

957 posts

Location Web Development

Posted 11 April 2015 - 12:21 AM

Thats why I used /tp, it doesn't output anything to other players

MKlegoman357 #6

1140 posts

Location Kaunas, Lithuania

Posted 11 April 2015 - 09:11 AM

HPWebcamAble, on 10 April 2015 - 10:52 PM said:
-snip-

That's actually quite smart, didn't realize that some commands return player names..

Mikk809h, on 10 April 2015 - 11:16 PM said:
well I just found out, that the "tell @a[r=5] @a[r=5]" actually Does return player names…
And then it just needs to be formatted into a table, and then its done!

This question is solved.
but.
Another question is revealed:
Is it possible to use /tell [computercraft] @a[r=5]
instead of spamming the players within 5 blocks?

like a 'fake-player'
?

I think Turtles were able to 'act' like fake-players, well at least bukkit permission plugins could forbid a turtle to place blocks. I think it was called '[ComputerCraft]'.

MKlegoman357 #7

1140 posts

Location Kaunas, Lithuania

Posted 11 April 2015 - 09:53 AM

I found that by using 'xp 0 @a' might actually return the player list without affecting anything. I only tested on SSP so I don't know what are the exact returns in a multi-player environment. Also, it shows the result for OPs if the gamerule 'commandBlockOutput' is set to true which can be quite annoying.

ItsRodrick #8

95 posts

Location = gps.locate() or "unknown"

Posted 11 April 2015 - 03:43 PM

testfor @a[r=5] may work

(Mikkel, I remembered it when I was going to sleep xD)

HPWebcamAble #9

957 posts

Location Web Development

Posted 11 April 2015 - 04:44 PM

RodrickLord, on 11 April 2015 - 03:43 PM said:
testfor @a[r=5] may work

(Mikkel, I remembered it when I was going to sleep xD)

I actually thought about that before and decided it wouldn't work

It does work :D/>
In 1.8 it returns 'Found player1 and player2 ect'

In 1.7 PLAYERS can't run it, but I'm pretty sure command blocks can

Nevermind, looks like we'll have to wait for 1.8 to use /testfor

Edited on 11 April 2015 - 08:58 PM

Wojbie #10

724 posts

Location Kinda lost

Posted 11 April 2015 - 10:12 PM

Sorry in 1.7 testfor on command computers returns only true/false and nothing in chat return. Can't get player list that way.