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I'm trying to make a minigame that's in a space station. Everyone gets a certain amount of oxygen using scoreboards.

I am stuck on how I can kill a player when they reach 0 oxygen. I have tried

/testfor @a["scoreboard name"=0]

but this does not seem to work. How can I kill the player when they reach 0 oxygen?

I am using Minecraft version 1.7.10.

  • You were on the right track, just some syntax problems. Simply put score_ in front of the "scoreboard name". I recommend replacing the /testfor command with a /kill command if you're simply using it to kill players, for simplicity's sake. Therefore your command would become /kill @a[score_<scoreboard name>=0] For future reference, /testfor is mostly useless. If you find yourself using it, i highly suggest checking everything and seeing if a /scoreboard command would suit your needs better (it almost always will). – rustphoenix Mar 10 '16 at 17:03
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if you're still on 1.7 (the other answer only works on 1.8+), then try:

/effect @a[score_O2remaining=0] 20 5 100

to give those players a strong Wither effect for 5 seconds.

  • Wither is effect 20, I edited your answer accordingly. Good first answer, welcome to Arqade! Take the tour and check out the help center if you have any questions regarding the site. – MrLemon Mar 10 '16 at 19:16
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Try this looped on a fill clock:

/kill @a[score_NAME_min=0,score_NAME=0]

This should kill all players that have a score of zero. All you need to do after that is set the killed players oxygen score back to 10 so that they don't keep getting killed.

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    The target selector to check for a maximum score is score_NAME, rather than score_NAME_max. – MrLemon Mar 10 '16 at 10:55
  • I don't think so, @MrLemon. The way scoreboard are working is kind of weird. You can't test for an exact value with score_WHATEVER. You need to append _max to it, if I remember correctly – Seblor Mar 10 '16 at 13:24
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    @Seblor: You are incorrect. score_NAME matches everyone who has a score equal to or less than the value, score_NAME_min matches everyone who has a score that's at least the value. Combine the two to match everyone who has a score that is exactly equal to the value. I do wish that we had score_NAME, score_NAME_min, and score_NAME_max. – MBraedley Mar 10 '16 at 13:43
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    The _0 won't do anything useful either. – rustphoenix Mar 10 '16 at 17:00
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    Note that you also cannot have spaces anywhere within the selector parameters, including between the selector and square bracket: @a[score_NAME_min=0,score_NAME=0] – Skylinerw Mar 11 '16 at 13:45

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