Detect an Empty Hopper in MC 1.12.2How to power a row of droppers efficiently from side or bottom?Minecraft...

Initiative: Do I lose my attack/action if my target moves or dies before my turn in combat?

bldc motor, esc and battery draw, nominal vs peak

What is the optimal strategy for the Dictionary Game?

I preordered a game on my Xbox while on the home screen of my friend's account. Which of us owns the game?

How could Tony Stark make this in Endgame?

How exactly does Hawking radiation decrease the mass of black holes?

Why does nature favour the Laplacian?

basic difference between canonical isomorphism and isomorphims

How to have a sharp product image?

Could the terminal length of components like resistors be reduced?

Is there any official lore on the Far Realm?

Overlay of two functions leaves gaps

Why did C use the -> operator instead of reusing the . operator?

Critique of timeline aesthetic

Extension of 2-adic valuation to the real numbers

Retract an already submitted recommendation letter (written for an undergrad student)

What makes accurate emulation of old systems a difficult task?

Does a large simulator bay have standard public address announcements?

What is the most expensive material in the world that could be used to create Pun-Pun's lute?

Why do games have consumables?

How can Republicans who favour free markets, consistently express anger when they don't like the outcome of that choice?

Why must Chinese maps be obfuscated?

Can someone publish a story that happened to you?

Why didn't the Space Shuttle bounce back into space as many times as possible so as to lose a lot of kinetic energy up there?



Detect an Empty Hopper in MC 1.12.2


How to power a row of droppers efficiently from side or bottom?Minecraft Command Blocks Help - Selecting previous target in a second command blockAll items not removed from brewing stand in automated brewing systemHow can I make the redstone repeat a task x times and reset it self?How can I receive a success output signal from command block on a fill clock?Command Block always activates ComparatorHow to replace a SPECIFIC item in a players hotbar with another specific itemTesting for players in particlesBurnt-Out Redstone Torches Re-Ignites RandomlyTestfor items in hopper 1.12.2!






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}







1















I'd like to use a command block to detect when the first slot of a hopper has no items in it in 1.12.2 (Or alternatively, if no slots have items in them). I already know how to search for a specific item in the first slot:




/testforblock ~a ~b ~c hopper -1 {Items:[{id:"minecraft:dirt",Count:1b,Slot:0b}]}




I've tried to search for minecraft:air as a way to detect nothing, but this doesn't seem to work. Any help is appreciated! It must be a command block solution (I know that you can detect an empty hopper "manually" by having a comparator output with redstone torch, but in my scenario the hopper and signal destination (command block location) are very far apart)










share|improve this question





























    1















    I'd like to use a command block to detect when the first slot of a hopper has no items in it in 1.12.2 (Or alternatively, if no slots have items in them). I already know how to search for a specific item in the first slot:




    /testforblock ~a ~b ~c hopper -1 {Items:[{id:"minecraft:dirt",Count:1b,Slot:0b}]}




    I've tried to search for minecraft:air as a way to detect nothing, but this doesn't seem to work. Any help is appreciated! It must be a command block solution (I know that you can detect an empty hopper "manually" by having a comparator output with redstone torch, but in my scenario the hopper and signal destination (command block location) are very far apart)










    share|improve this question

























      1












      1








      1








      I'd like to use a command block to detect when the first slot of a hopper has no items in it in 1.12.2 (Or alternatively, if no slots have items in them). I already know how to search for a specific item in the first slot:




      /testforblock ~a ~b ~c hopper -1 {Items:[{id:"minecraft:dirt",Count:1b,Slot:0b}]}




      I've tried to search for minecraft:air as a way to detect nothing, but this doesn't seem to work. Any help is appreciated! It must be a command block solution (I know that you can detect an empty hopper "manually" by having a comparator output with redstone torch, but in my scenario the hopper and signal destination (command block location) are very far apart)










      share|improve this question














      I'd like to use a command block to detect when the first slot of a hopper has no items in it in 1.12.2 (Or alternatively, if no slots have items in them). I already know how to search for a specific item in the first slot:




      /testforblock ~a ~b ~c hopper -1 {Items:[{id:"minecraft:dirt",Count:1b,Slot:0b}]}




      I've tried to search for minecraft:air as a way to detect nothing, but this doesn't seem to work. Any help is appreciated! It must be a command block solution (I know that you can detect an empty hopper "manually" by having a comparator output with redstone torch, but in my scenario the hopper and signal destination (command block location) are very far apart)







      minecraft minecraft-commands






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 4 hours ago









      AndrewAndrew

      255




      255






















          1 Answer
          1






          active

          oldest

          votes


















          3














          In Minecraft 1.12.2, you can detect a hopper with no items in it with the command:



          /testforblock <x> <y> <z> hopper -1 {Items:[]}


          in one command block, followed by a conditional chain command block to do something when this is true.






          share|improve this answer








          New contributor




          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.





















          • Wow I seriously overthought that... thank you!

            – Andrew
            2 hours ago












          Your Answer








          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "41"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: false,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          noCode: true, onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgaming.stackexchange.com%2fquestions%2f350546%2fdetect-an-empty-hopper-in-mc-1-12-2%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3














          In Minecraft 1.12.2, you can detect a hopper with no items in it with the command:



          /testforblock <x> <y> <z> hopper -1 {Items:[]}


          in one command block, followed by a conditional chain command block to do something when this is true.






          share|improve this answer








          New contributor




          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.





















          • Wow I seriously overthought that... thank you!

            – Andrew
            2 hours ago
















          3














          In Minecraft 1.12.2, you can detect a hopper with no items in it with the command:



          /testforblock <x> <y> <z> hopper -1 {Items:[]}


          in one command block, followed by a conditional chain command block to do something when this is true.






          share|improve this answer








          New contributor




          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.





















          • Wow I seriously overthought that... thank you!

            – Andrew
            2 hours ago














          3












          3








          3







          In Minecraft 1.12.2, you can detect a hopper with no items in it with the command:



          /testforblock <x> <y> <z> hopper -1 {Items:[]}


          in one command block, followed by a conditional chain command block to do something when this is true.






          share|improve this answer








          New contributor




          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.










          In Minecraft 1.12.2, you can detect a hopper with no items in it with the command:



          /testforblock <x> <y> <z> hopper -1 {Items:[]}


          in one command block, followed by a conditional chain command block to do something when this is true.







          share|improve this answer








          New contributor




          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          share|improve this answer



          share|improve this answer






          New contributor




          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          answered 2 hours ago









          Jack L.Jack L.

          662




          662




          New contributor




          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.





          New contributor





          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          Jack L. is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.













          • Wow I seriously overthought that... thank you!

            – Andrew
            2 hours ago



















          • Wow I seriously overthought that... thank you!

            – Andrew
            2 hours ago

















          Wow I seriously overthought that... thank you!

          – Andrew
          2 hours ago





          Wow I seriously overthought that... thank you!

          – Andrew
          2 hours ago


















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Arqade!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgaming.stackexchange.com%2fquestions%2f350546%2fdetect-an-empty-hopper-in-mc-1-12-2%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          What is the “three and three hundred thousand syndrome”?Who wrote the book Arena?What five creatures were...

          Gersau Kjelder | Navigasjonsmeny46°59′0″N 8°31′0″E46°59′0″N...

          Hestehale Innhaldsliste Hestehale på kvinner | Hestehale på menn | Galleri | Sjå òg |...