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

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1
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3answers
394 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 ...
3
votes
1answer
152 views

Determine Minecraft item type from entity or inventory?

I have a dropper which can contain, of course, any items. Assuming I can already target this dropper in a command's target selector, how can I determine what item is in the first slot of its inventory ...
1
vote
2answers
508 views

How do you clear all item drops in Minecraft?

How do you clear all item drops in Minecraft? I want to have something activated by an Item landing on a golden pressure plate, but It can only be activated once. Is there any command block command ...
1
vote
1answer
80 views

Wireless Redstone Lamp without Command Blocks?

So I want to create a building that shows no Redstone. And one of the problem is the lighting. I really want to see if I could get a Redstone lamp float above ground by 1 block and be able to be ...
0
votes
1answer
31 views

How do I stop Zombie Villagers from spawning or Zombies

I am making a flat adventure/Survival map which is meant to be played for meaby a year or two and is made to make the game harder. In the map when you spawn you have a big shop which is setted up ...
1
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1answer
96 views

How can I build a redstone-powered vehicle?

I tried to build a redstone vehicle in Minecraft (vanilla), but my attempts proved futile. I tried to build it using pistons, wire and some pushable blocks, but it didn't work, because the wire breaks ...
0
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1answer
930 views

How do I keep my hoppers from filling up when chests are full?

I'm not sure how to do this, but i believe it is possible. Basically, I want to know how to have a chest system, that when a chest is full, (no matter how many items there are per slot) the hopper ...
-2
votes
0answers
15 views

How do I choose the right cannon in minecraft factions? [closed]

so I have a raid and I'm trying to get tnt onto someone's roof. But I've tried 4 cannon designs and they either fired too low, too high, too far, or too short. How do I choose a cannon that has the ...
17
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6answers
10k views

What's the largest size of “door” I can open with a single switch?

I'm fairly new to using redstone, and I'm wondering what's the largest size of "door" that can be opened with a single switch? I have a huge arena, and I'd ideally like to be able to hit one switch ...
8
votes
2answers
19k views

Can I use dispensers or droppers to auto-replant crops?

I'm working on a fully-automatic farm now that 1.5 is out. The plan is to use redstone to flush fully-grown crops into a channel to be collected by a hopper and then picked up by a cart. The issue ...
0
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1answer
49 views

Minecraft: /setblock a playing jukebox

How do I setblock a playing jokebox in Minecraft? I need the command.
0
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1answer
76 views

How to make a player drop an item when hit

I am making a game on Minecraft when someone starts holding one item. If they get hit by someone they lose the item, and it goes on until a timer finishes. How can I do this? I am still new to command ...
1
vote
0answers
63 views

Redstone circuit that activates on short pulse and does not activate on longer pulse

I made a circuit that activates on a long signal but I am missing one that activates on a short pulse and does not activate if the pulse time exceeds a certain pulse. Everything I made still activates ...
4
votes
3answers
99 views

Detect broken blocks that don't drop items

I'm trying to make certain aspects of survival more "painfully realistic" using command blocks. One of those things is that I'd like mining through stone (or other hard objects) with your bare hands ...
0
votes
2answers
64 views

Redstone repeater delay if activated

Can you make a lot of repeaters activate after 10 seconds of making sure it's really activated? Like, if there is a redstone current that lasts 5 seconds (It will deactivate after 5 seconds) then it ...
5
votes
1answer
59 views

Minecraft execute tellraw's clickEvent from original entity, not player

I'm using a command like this: /execute @e[type=ArmorStand] ~ ~ ~ tellraw @a[score_goto=-1] { "selector": "@e[type=ArmorStand,r=1]", "clickEvent": { "action": "run_command", ...
1
vote
3answers
79 views

minecraft vanilla, shuffle chest

I am trying to make a game in vanilla minecraft, and I need to shuffle items in chest. To do that I made a dropper system that allows to shuffle 9 items (and multiples of 9). The problem is, that when ...
3
votes
1answer
48 views

System with multiple inputs, but when one is activated it disables the other inputs

I am currently working on a bank system. However, it cannot accept multiple inputs at the same time (through multiple ATMs). So I made it so that every ATM will output a signal when a user has ...
1
vote
1answer
88 views

Trouble wiring a double row of droppers

The problem seems simple enough. I want to power a double row of droppers. My idea was to redstone wire it this way: Take a double decker row of droppers, and run redstone across the top. ...
-2
votes
0answers
33 views

How to make a scoreboard countdown

I am trying to make a countdown on Minecraft using the /scoreboard command, but I have been unsuccessful in doing so. Is there a way that I can do this? I have tried doing /scoreboard objectives add ...
3
votes
1answer
157 views

Why won't this redstone and command block setup work like the other one?

I'm trying to make an RPG adventure where the player can interact with different stuff. For example, if he walks up to a crafting table, then this text should come up in chat: [Robert:] I wish there ...
5
votes
2answers
103 views

Trouble making a 5 x 6 wall of redstone lamps

I am trying to make a 5 high by 6 wide cube of redstone lamps to work all at once but I'm having issues getting them to work. They need to be wired so that you can turn them on and off with a clock. ...
2
votes
2answers
50 views

Disabling nether portal functionality

I need to know how to disable the nether portal from taking you into the nether, and instead, to tp you somewhere else in the overworld. Is it possible to do this on a commandblock or with redstone in ...
0
votes
1answer
38 views

'/testfor' a number more than 0

I am making a points shop for kills. I have the objectives money and kills. When I press a button, a command block tests for my kills (hopefully) above 0, and if that is a thing, it takes gives me one ...
2
votes
2answers
40 views

Efficient way to power stacked rows of pistons?

How can I power two vertically stacked rows of pistons, hopefully with a minimal number of repeaters? I can get the bottom row powered with just a line of redstone on the gold blocks behind as shown, ...
7
votes
3answers
206 views

How do I build a 4x2 Piston Gate?

I have been searching the Internet searching for the solution, but I have yet to see it... Just to clarify I am NOT looking for... I want to solution to the following gate... The Gate is very ...
19
votes
6answers
10k views

Is there a way to shut down a Nether portal with redstone?

Since it is no longer possible for flowing water to deactivate a Nether portal, you can't use pistons to push blocks into the nether portal and finally you can't move the obsidian powering the portal ...
7
votes
3answers
141 views

Without mods, is it possible to filter items in hoppers/droppers/others?

I'm new to Minecraft, and finally out of my "build a log cabin and try not to die" phase. I just completed my second useful machine today, a dropper-vator from level 14, up to the top of a large(ish) ...
3
votes
2answers
43 views

How to detect if a mob has been hit in minecraft with command blocks?

i am making a boss battle for my minecraft adventure map, and using a mob spawned with commands as the boss. When the mob gets hit, some command blocks will give the player a potion effect, but I ...
0
votes
0answers
31 views

Vertically stacked armor stands should have increasing scores, but don't

I'm trying to make a goalpost system for a custom map I'm designing. The idea is that a goalpost--consisting of a tall stack of iron bars--would have variable height, and at each block up and down the ...
1
vote
1answer
31 views

Kill all minecarts on a specific block

I am working on my "Minecart Elevator" and I need to kill all the minecarts on a specific block. I have tried many methods, but none of them work. There is no track below the minecarts. How should I ...
3
votes
1answer
29 views

What Specific Blocks are needed for Turing Completeness?

Let's say I want to make a shop with all the redstone components required for Turing-completeness. Since we know Minecraft is Turing-complete, what are the basic blocks required? Ex: Comparators might ...
2
votes
3answers
4k 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 ...
2
votes
2answers
2k views

Redstone Circuitry - Resistors?

Is there any way to construct a resistor within a redstone circuit? I was thinking that there might be some properties of cobblestone versus glass, dirt versus obsidian, etc. but I haven't had the ...
0
votes
5answers
10k views

How to make a command block say something only once in Minecraft?

I am creating an adventure map and needed to know how to make a command block only say something once in the chat menu. PS: I would like this to be under my floor because it is supposed to be an NPC ...
1
vote
1answer
47 views

Rewarding Players On Kills

I am working on a Minecraft Map where whenever you kill another player your sword upgrades. I have tried doing /scoreboard players add @a[score_Kills=1] Kills 1 and /give @a[score_Kills=1] 283 but it ...
2
votes
1answer
64 views

Minecraft 1.9 Data Tags changed?

Ok so I have this command here: /summon Item ~ ~1 ~ {Item:{id:spawn_egg,Damage:65,Count:32,tag:{display:{Name:"Destruction Pellet",Lore:["Place this item in a dispenser and power","to destroy the ...
0
votes
2answers
166 views

Can I make an invisible block which only people with a specific item can go through?

I am currently making a server, and I want to make an invisible block in which only people with a specific item can go through(in this case, a nametag called:key). Is there a command to do so? I am ...
-2
votes
1answer
37 views

How to make scoreboard points

I am working on a Minecraft map where two teams have to get to the other side first. I want it to be that the first team to 3 points wins. Is there any way I can do this?
4
votes
2answers
161 views

How do I create unbreakable blocks?

I am creating a map on Minecraft, and I want the players to break certain blocks like trees, but I don't want them to break other blocks like stone bricks. Is there any command that can help me?
0
votes
1answer
204 views

make player inable to deal damage to someone minecraft

Ok so I made a mechanism where if you get hit, you get hit by lightning. However all the redstone freezes and stays on if you spam it. Because it test if you have stat.damageTaken and if it is 1 or ...
1
vote
1answer
93 views

How to award player on every kill in Minecraft using command blocks?

I want to award the players in my game with 2 cooked porkchops every time they kill another player. What I have tried so far, is setup one command block which gives every player with the killsloot ...
1
vote
2answers
119 views

Is there any way I can ride blocks like they were horses?

I just made a resource pack with a 3D model of the "Swegway/IOHawk/PhunkeeDuck/Hoverboard"-thing. The texture I changed is the flower pot. Now im just wondering if I can somehow ride blocks (like the ...
9
votes
3answers
3k views

How to Make an Instant Off/Delayed On Redstone Circuit?

I would like to make a circuit with one lever input and two outputs. When the user flips the lever, I would like for the one output that's ON to immediately turn OFF, while the other output which is ...
1
vote
1answer
57 views

How to change scoreboard score if player does not have item in his inventory?

I want to make a killstreak award system. for that I need to be able to make a player choose to use his killstreak points to get an ability/potion effect or open a certain gate. I wanted to make the ...
1
vote
5answers
2k 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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votes
2answers
1k views

How to run commands depending on players scoreboard?

How can I teleport players based on their score on the scoreboard? For example, only if there scoreboard score is 1.
0
votes
1answer
24 views

How to execute different redstone circuits according to a scoreboard variable?

I have a scoreboard variable that counts a killstreak of a player. when a player uses his killstreak I want to preform different actions acording to his killstreak points(1-9) and the team(red-blue). ...
0
votes
0answers
19 views

minecraft take Nth item from chest

Hello I dont know if it is possible, but I wanted to ask how can take Nth item from chest? Like I have 7 items in chest in 7 slots and I want take the 4th. Hopper always takes the first one. Can you ...
1
vote
1answer
169 views

Minecraft PE BUD switch

I am running the latest version of MCPE, so I don't have access to pistons, redstone repeaters, or redstone comparators. Is it possible to make a BUD switch?