Questions about redstone contraptions and machinery in Minecraft. For command block contraptions, use [tag:minecraft-commands] instead.

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2answers
259 views

How to test if someone died twice and then put them in creative with invisiblite x in command blocks

I am doing a minigame map, and there are a couple events I want to set-up: If someone dies twice they will be eliminated and put into creative with invisibility X If all of a persons wool is ...
2
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1answer
687 views

How can I make the redstone repeat a task x times and reset it self?

So I'm trying to make a redstone circuit that can repeat a task x amount of times and then reset it self. I was thinking of using a dropper and a hopper and use the hopper redstone signal (retrieved ...
2
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1answer
659 views

Scoreboard and testfor issues using commandblocks

My problem is that I'm building on a map in Minecraft, where a player (myself for example) will press a button and his status changes into "The Player is ready for the game to begin". So, press button ...
2
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2answers
5k views

Inverting pressure plate without powering piston

I'm working on a trap, where if a person steps on a pressure plate, then the pistons deactivate and a pit forms in front of the plate. I decided to do this like a vertical jeb's door (a piston door in ...
2
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2answers
3k views

Is there a way to keep a clock ticking with no players logged into SMP?

I'm planning to build a clock tower for my SMP server; however, it's occurred to me that my plans have a gaping flaw: when nobody's online, the redstone clock won't keep time. I'm using vanilla, so ...
2
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2answers
114 views

RPG-esque Area Names on Entry in Minecraft

So the title command lets you put a fancy thing across people's screens like you might see in some RPG. I'd like to use this as a way to give names for areas in my adventure map- for example, they ...
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2answers
1k views

Trail of particles from a point to TNT

I have a map where I spawn Primed TNT then teleport it to a random Mushroom Cow which is invisible to make 100% random explosion. Now I want to make a particle trail from an orb kind of block in the ...
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2answers
7k views

How do I make a Redstone Door that opens with a lever?

I am making a castle in my minecraft world but I want a door that villagers can't enter. So, I decided to make a redstone door but everything I looked up on google seemed to complicated. please ...
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2answers
90 views

How can I make my far away command blocks work

I have command blocks on my adventure map, the map is partially parkour and has no ground just floating islands, I don't want people too see the command blocks so I put them 200 blocks away and ...
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3answers
209 views

How do I make a rain detector on Minecraft?

I am making a server and it rains alot. rain lags up my computer so every time this happens, I have to type in /toggledownfall. Is there a way to make a simple redstone creation that detects rain, ...
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4answers
9k views

What are some good novice applications for redstone circuitry? [closed]

I've just decided to finally bite the bullet and learn redstone circuitry in minecraft. I'm already familiar with logical circuitry, and the minecraftwiki page about redstone circuits is certainly a ...
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4answers
19k views

How do I use the /kill command to ONLY kill mobs?

I have a Redstone Power loop that connects to a Command Block that is set to kill all entities except for myself (/kill @e[type=!Player]), because I'm building a creative map, but don't want slimes ...
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1answer
186 views

How do I get two pistons (one of them on an inverted signal) to go at the same time?

Here's the problem - I need two pistons to go at the exact same time, so that one of them is contracted and the other is expanded, on a switch mechanism. To achieve this, one of the pistons has to ...
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1answer
439 views

What is the purpose of a D Flip-Flop in Minecraft?

Based on the design of the circuit and on the description, what is its purpose? It says that it transfers the state of D to Q. This means it can store one bit. But what is the purpose of a D ...
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1answer
2k views

How to destroy a chest using redstone in minecraft?

I am acquiring emeralds. I am having the issue that if I destroy 4 double chests of paper at my location with a pickax, I can't run through it all (i.e. exchange the paper for emeralds) in time ...
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1answer
24 views

How do I make a command block output a Redstone signal when it is successful?

I want to know how to make a command block output a Redstone signal when it is successful.
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1answer
57 views

How do I make a mob riding another mob and make the rider invisible?

I want to have an invisible blaze riding a bat so it looks like a bat is shooting fireballs. If I do /summon blaze ~ ~5 ~ {ActiveEffects:[{Id:14,Amplifier:1,Duration:999999,{Riding:{id:"Bat"}}}]}, it ...
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4answers
328 views

How can I make an automatic cobblestone breaker?

Is there a way to break blocks with a redstone/piston system and then pick them up with a hopper in vanilla Minecraft. I want to make an automatic cobblestone breaker. I know that I can break sand, I ...
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1answer
1k views

Trigger command blocks remotely?

I am currently working on a minigame, and I am trying to remotely trigger command blocks. Is there any way to use a lever and a command block to activate another command block 4K blocks away? For ...
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1answer
6k views

How do I reverse the redstone door so it starts in close position?

I'm trying to make a hidden door in Minecraft. I have pressure plates set up to open the door, but since the door starts in open mode, when I use the pressure plates, it closes and then opens. How do ...
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1answer
630 views

Confusion on Redstone Wire Transmission

According to the wiki on Redstone Circuits: Redstone Wire powers itself, the block below it, or the block it is pointing to. I'm having trouble understanding what this is saying. According to the ...
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1answer
54 views

Inclusive redstone repeater

So, I have this: Now, what I want is a repeater that would work while keeping the unlit lamp on. Yeah, that one right there: I have this already: ...but the piston turns on and off ...
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1answer
14k views

Summoning PrimedTnt with custom fuselengths

How can I summon PrimedTnt with a custom fuse length? I know I have to add some attributes to it, but I'm not sure as to how I can do that. Does anyone know? Also, is there a way to turn TNT explosion ...
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2answers
4k views

Can I configure a Redstone Energy Cell to emit a redstone signal if it is full?

I have Magmatic Engines powering a Redstone Energy Cell. Is there a way to configure the cell to emit a redstone signal once it's full, so I can use said signal to rurn off my engines so they dont ...
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1answer
45 views

Select player that does not have a specific score set

I want to select all players that do not have a specific scoreboard objective value set. I have tried doing testfor @a[score_hasJoined=] and testfor @a[score_hasJoined_min=], but it still won't work. ...
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1answer
175 views

Execute or Testfor a named dropped Item?

I have a contraption set up where if I drop a player head named Camera1 (it looked very much like a camera) a clock will find it and replace it with an armor stand that is also wearing the head. It ...
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2answers
243 views

How to put a redstone block in clock mode?

I saw this video by SethBling. (The video is caught up to the moment of my question) He says "Make sure these are in clock mode" what does he mean by clock mode?
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2answers
217 views

How does sethbling “steal items from air” in this video?

Around 0:40, sethbling throws iron blocks at the huge villager statue, and they vanish. How does that work? And what version of Minecraft do I need to use to do this?
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1answer
4k views

How to testfor blocks not people

how do I testfor blocks? like if I put down stone near a command block with a comparator attached to it and it will activate a piston connected by the comparator on the command block? please answer.
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1answer
196 views

How can I change the outputs from two different wires to the same state (on/off) using one input, regardless of the previous states of the two wires?

So, I've set up two traps near my base, hooked up to pressure plates.Inside each trap, I have some sticky pistons with blocks attached, such that when extended (turned on) no power reaches the various ...
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1answer
960 views

In Minecraft, what is the most space-efficient way to construct AND and OR Redstone gates?

With Redstone you can create wiring and circuitry. Using this, it is possible to create complex devices and even "programs". Unfortunately, the size of such projects usually tends to be massive in ...
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1answer
153 views

Why is it when I do “/kill @e [type=!player]” in a command block I die?

I need this command to be able to reset my mini-game map, but I don't know how to do it! Am I doing it wrong?? I've found other websites that say its just like that, so I don't know what I'm doing ...
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1answer
326 views

Place block in Minecraft with redstone?

I'd like to get ore, and place it (without command blocks) anywhere near the contraption. My question is could it be possible to do this, and if so how? Note: it does not matter on the timing the ...
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2answers
205 views

Check if a player is blocking

Is is possible to check if a player is blocking? If so, how is it done? It didn't have any stat that seemed right on the wiki, and I didn't see one when I hit tab on "/scoreboard add derp". Thanks for ...
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1answer
3k views

How to test for time of day with command block in Minecraft

I'm trying to setup something similar to the MindCrack team's current server set up for my single player world so that the world border expands slowly as I play the game. I already know how to work ...
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1answer
153 views

Can I shrink this three-pulse-generating circuit?

I guess what I'm after here is a code review for my redstone. I've set up a circuit so that when I press a button, 3 items get dispensed from a dispenser, but it seems rather large. Can anyone ...
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1answer
472 views

Inflict damage when player is hit by minecart

Is it possible to test when a player gets hit by a minecart, then inflict damage on the person hit by the minecart based on the speed of the minecart? If testing for the speed of the minecart isn't ...
1
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1answer
263 views

Easy redstone memory

I want to make a simple one-bit storage to check if someone else entered my house. For the person detector, I use the magic plate from thaumcraft. But how can I build a circuit memory which changes ...
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2answers
167 views

How can I null the output of this circuit when a switch is activated?

Specifically, how would I cancel the redstone signal going to the stone block? What type of logic gate would I need? I want to be able to active a switch on the right input (in the screenshot) that ...
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2answers
2k views

How many ticks must I use to get only one item through a hopper?

If I have a powered hopper with items in it, and I want to let one item through, how long do I have to un-power the hopper? 1 or 2 ticks? All I know is that a hopper transfers items at the rate of 2.5 ...
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2answers
746 views

How can I control a sequence of outputs via a single input?

Ok, so I'm making a map which needs a level system. By level system I mean: Push the button first time,output A lights up. Push the button second time,output B lights up. Push the button third ...
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1answer
327 views

What is the actual function of the third torch in the comparator?

I have heard different explanations for what the function of the third torch is in the comparator. But I have never gotten a definite answer for what the use is being able to right click on the ...
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1answer
63 views

Can you make retractable sticky pistons, while extended, in Minecraft?

I was wondering if there is a mod or something to allow sticky pistons that are extended to be pulled or pushed by other pistons? There must be a way to make this work, because trying to make a ...
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1answer
206 views

Detecting items in a Dropper

I am standing on a dropper facing upwards, with 64 stone blocks in the top-left slot, and I am running this command: /testforblock ~ ~-1 ~ dropper 1 {Items:[{Count:64,Slot:0,id:stone}]} but for ...
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1answer
65 views

Minecraft piston door is only shut when lever is on, but how do I turn it off with another lever?

This is a frequent problem I've been having with the designs of some doors. Basically, the door, to be shut must have its redstone to be powered by a lever. So when I want to enter my house I must ...
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1answer
141 views

Minecraft - Implement Random Access with Redstone

I'm trying to build a machine in Minecraft that will act similarly to an array. It will be implemented using physical blocks, not using a traditional redstone CPU type architecture of redstone signal ...
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1answer
83 views

How can I detect if only one out of 8 lines of redstone is on and block the others from passing trough?

I have a (very) big redstone contraption used to store numbers for ALU's or minecraft computers. As of with most inventions, They get upgraded to preform better/get smaller from time to time, so to ...
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3answers
239 views

How to reset a command block's status?

I'd like to use a comparator to act when e.g. a testforblock command block attached to a button triggers. But the comparator changes its state only when the button is pressed after the test result ...
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1answer
666 views

How do I teleport a player to another entity while changing the player's rotation?

I want to be able to teleport to an entity but keep my original rotation? I tried /tp @p @e[type=ArmorStand] ~ ~. I have looked everywhere and tested even the most stupid lines of code, in hope I'd ...
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2answers
2k views

How do I teleport players based on their teams?

I'm making a costum map which uses comandblocks to teleport players to a spot. The commandblocks are setup under two rooms. (One for team red players and one for team blue players). I need to teleport ...