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

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2answers
157 views

redstone problems

I have several Redstone contraptions on my map, but while trying to build another, I'm having problems with pistons deploying once and getting stuck deployed, even when power is removed. they will not ...
2
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2answers
7k views

Using a command to replace wool blocks with command blocks which contain a command

I am trying to replace certain blocks in this case lime wool with a command block that contains a certain command. The following command to replace lime blocks with stone works: /fill ~-15 ~0 ~-15 ...
0
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2answers
525 views

Testing for a block in a certain radius

I am making an arrow that explodes when it hits anything, but I need a way to testfor all blocks within a radius of 2 blocks to see if they're air or not. The only problem is, I dont know how.
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1answer
575 views

How to make a chest open with redstone or command

I have Minecraft 1.8.1 in creative mode and I would like to make a chest open visually, using redstone or commands, without touching it.
1
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1answer
1k 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 ...
0
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1answer
323 views

How do I set up a scorebord variable to act as a bool and later test for it

I am making a capture the point map in minecraft in which two teams are capturing points. I intended a capture point that switches color every time a redstone pulse is supplied. now i have a problem ...
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2answers
572 views

execute command setblock

Ok so when you throw a snowball I have /execute @e[type=Snowball] /setblock ~ ~-1 ~ minecraft:ice' So this makes an ice path following under the snowball. I had some code something like this and ...
3
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2answers
2k 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 ...
3
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1answer
1k views

Automated Crop Farming

I am wondering how would I automate this underground farm so I can flick a lever and have it all collected by water like for Sugar Cane and Wheat or Pistons for say Pumpkins or Melons.
0
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1answer
621 views

Minecraft; How can you use command blocks to detect player levels? [duplicate]

I'm trying to work on redstone works with a new adventure map, how can I make command blocks detect player levels? That's my main question, the rest I know how to work out but here's the purpose ...
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2answers
260 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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2answers
718 views

How do I replace the non-air blocks in a 5x5x5 area?

Is it possible for me to replace all non-air with stone blocks in a 5x5x5 box around where I am having the command executed? What is the command to do this? Note: I believe that I can do it by ...
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2answers
2k 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
538 views

Minecraft /testfor problem

I have another problem with my Minecraft PvP map. I'm trying to set up a command block that checks when a player is standing on a block and if so it will give them jump boost so I used this command ...
2
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1answer
2k views

Only allow certain blocks to be broken with mining fatigue

I want to make sure players cant break any blocks but wheat, while they have the mining fatigue effect. Is there a way to detect if they are trying to break the wheat or is there a way to only allow ...
-1
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1answer
2k views

In Minecraft, how much is a redstone repeater tick?

In Minecraft, there are these redstone repeaters that look like this. How much is one tick? Is 2 2x longer, how much?
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1answer
2k views

Minecraft Mob-Spawning in vanilla 1.8 server [closed]

I am making my own server and I am trying to make mobs not spawn in a certain area, I can't do a /kill @e[type=!Player] command because I have armor stands! So I was wondering what you guys thought. I ...
0
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2answers
554 views

How to /setblock a specific type of redstone (Debug mode) | Minecraft

I've had a look at the new hidden world type on 1.8, and I've just wondered how to get a type of redstone that goes up in the north part of the square, and I want to use the /setblock command to ...
6
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4answers
436 views

How should I go about “reseting” a large arena?

For a minigame map I am making, I have a large (320*320*116) destructible arena. Players get explosives, blocks, etc. and the entire area can change. At the end of the match, I would like to restore ...
0
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1answer
700 views

How do you make people drop extra items on death?

As seen in this video: (Skip to 5:53) When a player is slain, they drop an Enchanting Table on top of their inventory. How was this achieved and how can I build a ...
2
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1answer
129 views

Test for birch log in Minecraft

How do i get my command block to test for a birch log in 1.8? What are the new item names? I have already tried names like birch_log, 17:2 log:2 and so on. Google is against me on this as well.
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2answers
3k 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 ...
0
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1answer
327 views

Minecraft command block order I need help in redstone

I would like to make a command block that when he found someone(testfor) in a specific condition (like, survival mode) a redstone signal will appear and activate another command block(the command ...
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1answer
130 views

How can I pulse one of several wires in Minecraft randomly?

My question is a bit familiar to How can I randomly power one of several wires in Minecraft?, but slightly different. Let's say I have 5 wires (or more), wire A, B, C, D and E. Now, I want to ...
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2answers
249 views

How do you combine two stats into one scoreboard objective?

I want to create a scoreboard objective for the amount of times a player falls 50 blocks, places a water bucket, and survives the fall. I only want the player to get a point if they manage to do all ...
5
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2answers
2k views

How can I teleport to an unloaded entity?

I am using invisible invulnerable ArmorStands to create "warps" and "homes" in a map. The idea is that I can spawn them in with a specific name, and then teleport a player back to them like this: /tp ...
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3answers
130 views

Is there a logic gate for this?

I have a set of lights that turn on based on time of day. I want to be able to turn on a separate switch and have the lights blink on and off with a clock I've already built. So basically, is there a ...
6
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2answers
818 views

How do you automatically detect water in Minecraft 1.8?

I'm building an automated farms for several crops, including wheat. The farm consists of a long cascade of farm fragments: Seen from side Currently, I have to manually toggle water off after it ...
3
votes
1answer
268 views

Where is there a key to the different redstone circuit notations used on the minecraft wiki?

There are lots of schematics of minecraft circuits online, but few of them reference the notation they are using and I am finding it hard to chase down what some symbols mean. The page on Advanced ...
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1answer
251 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 ...
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 ...
0
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4answers
14k views

How do I spawn potions with Command Blocks?

I want to get super speed, like a speed III for 1:00? I want it to be a splash potion that spawns from a command block, I know it can be done, since potions are entities.
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2answers
11k 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 ...
3
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1answer
2k views

Exactly how do the contents of a furnace effect a comparator?

Can someone tell me how the contents of a furnace affect a comparator? I want to create some automation in vanilla Minecraft, but don't know how the mechanics work.
1
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2answers
245 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?
4
votes
1answer
364 views

Command Blocks vs Bukkit Plugin, Performance?

I am currently building an open world minecraft adventure map, primarily focused around compatibility for public multiplayer minecraft server. I would like to create events such as; spawning mobs when ...
1
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1answer
192 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 ...
2
votes
2answers
355 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 ...
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1answer
443 views

How do you make a item transporter in minecraft [closed]

Can you please help me on this topic? I just need basic facts about this.
4
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1answer
15k views

how do you make commands not show up on the chat

I am making a server, and I put a comparitor clock down to constantly have clear weather. How do I silence the commands?
2
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1answer
356 views

minecraft command block /setblock is innacurate

I notice when I use command blocks and /setblock, i will always have to subtract the x-value by 1 for it to go in the correct place when i check where the coordinates for the block i want to be set. ...
2
votes
4answers
3k views

Command Block always activates Comparator

I am trying to do something with command blocks. I have it test for a player at a certain position. I have set up a hopper clock that activates a command block with /testfor @a[x=-611,y=80,z=714] ...
6
votes
3answers
2k views

How can I receive a success output signal from command block on a fill clock?

I have a setup like this: In which the yellow command blocks are a standard 20Hz /fill clock, and the blue is a command such as, for example: /spreadplayers ~ ~ 10 20 false @p[r=5] My problem, ...
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1answer
616 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 ...
2
votes
1answer
1k 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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4answers
495 views

Use a command block to “Sense” a player in a certain area

OK, so on my friends and my server, we have a skyblock map. My issue is when somebody joins they spawn above the Void. What I need is for a command block to determine if a player is near the Void and ...
3
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3answers
12k views

Is there a way to display a player name in /tellraw command?

like the title says, I'm looking for a way to display a player name in a /tellraw command which is run by a command block. Example: /tellraw @a {"text":"","extra":[{"text":"A player has won the ...
2
votes
2answers
7k views

How to use a command block to welcome new players on a server in Minecraft?

Ok, so me and my friend own a server, it uses Minecraft 1.6.4. What I can't seem to figure out, is how to welcome new users to the server by saying Welcome USER To Northwood, when they join.
3
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1answer
6k 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
599 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 ...