Mojang's exploration and survival based sandbox game in almost endless, procedurally generated worlds. This tag is for (vanilla) Minecraft on the PC. See the tag wiki for related tags. Please note that questions requesting technical support for modded Minecraft crash issues are off-topic.

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8
votes
2answers
1k views

Why do we swim up some water currents faster than other?

Sometimes when i swim up long streams of water i swim really slowly but fast other times. this applies for any length of water. And also the speed differs when i reach certain sections for the stream. ...
12
votes
1answer
4k views

Do monsters spawn in unlit caves?

I'm new to Minecraft and I want to go mining, but I don't want to encounter any monsters. Basically, I'm searching for Iron so I can make buckets, armour and swords. If I lit a whole cave with ...
5
votes
4answers
3k views

What do I need to change to get these Minecraft trees to grow?

In a minecraft 1.2.3 world, I have created an underground area for growing trees. The four dirt blocks you see (two on left) all can grow trees, but with the others, they never grow, even when using ...
5
votes
1answer
1k views

Does grass grow when covered in water?

I was playing around with the idea of make pistonless automatic street lights in Minecraft. My idea was to use a BUD switch to see if a grass block had grown or died. I know that if grass is ...
12
votes
2answers
73k views

What is the most efficient level for enchanting?

According to the Minecraft Wiki article on enchanting, with full bookshelves, the max level is 50, so all further levels are pointless. While this is pretty straightforward, it's not too efficient to ...
2
votes
1answer
718 views

Where's the iron in Sea of Flame II?

OrigamiRobot and I are playing through the Sea of Flame II, and we can't find any iron. We got about 15 from the rotten caves, but that's not nearly enough. Where can we find more iron?
4
votes
2answers
6k views

How fast do Iron Golems respawn?

I am trying to create an Iron Golem trap as outlined in this wiki entry (Iron Golem), however they seem to be respawning very slowly. I have enough villagers to spawn at least one golem, what else ...
4
votes
2answers
1k views

Are Strongholds more common in Swamp Biomes?

In my experience with generating new worlds and finding the stronghold is close, they've almost always been in a swamp biome. Is this intentional, a bug, or just a coincidence?
25
votes
1answer
1k views

What is a snow golem's range?

I want to incorporate snow golems into my mob grinders. How close does a hostile mob need to be in order for a snow golem to begin throwing snowballs?
10
votes
6answers
32k views

How can I disable a mob spawner without destroying it?

I hear rumors that lava, water, and enough light can all disable spawners if done correctly. However, I can't seem to verify any of this. In what ways is it possible to disable a mob spawner without ...
4
votes
1answer
8k views

Is it possible to remove animals from a Minecraft map? [duplicate]

I recently opened a map which I thought was broken, because I could not load it anymore. I increased the memory for the Java VM to 8GB and now I can open it but it is impossible to play on this map, ...
6
votes
2answers
1k views

Why is everything bright in my test world?

I have a superflat test world, where I was going to do experiments with mob farms. Except it seems that for some reason, everything is lit up, as if I were building it out of glass. (it gets dark once ...
0
votes
1answer
655 views

PermissionsBukkit: Is there a replacement for Superpermsbridge for apps that don't support superperms?

I'm attempting to run a module (mcmmo) with PermissionsBukkit. The problem is, mcmmo doesn't seem to support superperms. For the most part it works, but anything listed by world or in groups isn't ...
3
votes
3answers
27k views

How do I disable PvP in regions using WorldGuard?

I am running in to some problems when users kill each other in their homes. How can I configure the WorldGuard plugin to disable PvP in regions?
7
votes
1answer
433 views

Is there an enchanted item duplication bug in Minecraft?

I enchanted a bow with Power 1, and now I have three bows all with Power 1 on them. Did monsters drop the others, or is there an item duplication bug in Minecraft?
2
votes
1answer
2k views

What sort of “abuse” would be possible if pistons could push obsidian blocks? [closed]

In the Minecraft Wiki entry for pistons, under the heading "Pushing Blocks", it says the following: Some blocks cannot be pushed by Pistons and the piston head will not extend: Obsidian, ...
33
votes
6answers
92k views

What makes a villager spawn?

I have a village in a desert. I took all the villagers out and rode them to my base via a rail system so their village is deserted. The buildings are in one piece each with a wooden door. I then ...
-4
votes
1answer
767 views

Does blocking halve fall damage?

Does Blocking with a sword still halve fall damage? The wiki says that it did before the release, but doesn't exactly clarify whether or not this is still implemented.
16
votes
3answers
701 views

Do natural structures generate above 128 blocks?

We are running a Minecraft server (bukkit) with new version 1.2. The height limit was doubled in the release, but I can't find any natural structures that use the new space above 128 blocks. I found ...
8
votes
1answer
12k views

How do you create double doors that open in sync from a 2-wide power source?

I've got a double door which I power from below, using a T-flip flop triggered by a pressure plate on the inside so that when I walk out, the doors open before me and when I walk in, the doors close ...
8
votes
2answers
2k views

Can I build a TNT cannon that fires the TNT directly upwards?

I've successfully built a cannon that will fire the player upwards to above the clouds by using this design (found on YouTube). The player stands on the stone pad, it triggers the TNT and the "water ...
3
votes
2answers
21k views

How do you set Minecraft offline mode player name and also pass parameters into the jar?

I know how to set the Minecraft offline mode player name via: Java -Xms512m -Xmx1024m -cp "%APPDATA%\.minecraft\bin\*" -Djava.library.path="%APPDATA%\.minecraft\bin\natives" ...
6
votes
2answers
18k views

Is there a height limit on bookshelves enhancing an enchantment table?

I have built up bookshelves around my enchanting temple like this: As you can see, there is a bookshelf four layers up. I am planning to add more, is there a limit that will prevent bookshelves on ...
1
vote
2answers
12k views

How can I restore a corrupted level.dat?

While I was playing Minecraft, my computer (running Ubuntu) crashed and my game I was playing got corrupted. I've managed to trace the problem to the level.dat and the level.dat_old files. All the ...
4
votes
2answers
3k views

How can I find the “center” of a dungeon?

I recently found a dungeon in Minecraft, and I have decided to make an XP farm out of it. From watching youtubers do it, I know that you need to have an 8x8 hole around the spawner to maximize ...
5
votes
2answers
3k views

What is the tallest trees can grow in the Jungle Biome?

Between what heights will "Jungle" biome trees grow to? I'm curious because sometimes I get really short awkward trees, and at times I get huge trees with multiple layers of leaves. Is there a ...
30
votes
4answers
50k views

How do I make big jungle trees?

I found a jungle biome in my new Minecraft world, but I'm afraid of cutting down the big trees (the ones that are 2 squares wide and long), because I don't know if I can replant them. So is it ...
2
votes
2answers
2k views

Will my Minecraft 1.1 world ever contain a Jungle biome?

Now that Minecraft 1.2 has been released, I'm wondering how much of the new stuff added will ever appear in the world that I started playing in 1.1. Specifically, a new Jungle biome has been added, ...
11
votes
5answers
13k views

How do you stop vines from spreading?

Its annoying me because I built a room surrounding my city and the vines still came in. The same thing happened to my friends city too. My friend covered a house in vines and it spread to our houses. ...
5
votes
1answer
2k views

Is there a bukkit plugin to run small scripts when players (re)spawn?

I'd like to setup my bukkit server to run a small script (like, giving players basic items) when players respawn or enter a world for the first time (or cause every 10th respawn to be in another ...
4
votes
4answers
9k views

How do I hide the plugin list from my users?

I want to hide my plugin list from my users. How do I do that? They just type /plugins and all plugins are shown. Is there any option to disable this? I am using Essentials.
7
votes
2answers
6k views

How to generate a predetermined number of pulses?

Motivation: I have a grinder that spawns spiders which are then moved to a very small space. When they accumulate in big enough numbers, I pull a lever and let a piston crush them 11 times. Then I can ...
1
vote
3answers
2k views

How can I toggle fire using redstone in SSP?

The Yogscast uses redstone-toggled fire, probably using this mod. However, CraftBook is only available for SMP. How can I get this feature into SSP?
14
votes
1answer
2k views

Do Mobs Recover their Health?

Can I just leave a spawner trap that uses fall damage alone for about half an hour, or will the mobs recover their health, rendering the fall damage trap useless?
3
votes
1answer
2k views

Finding lost Ocelots?

I didn't realize that upon quitting Minecraft, your Ocelots automatically sit. When I logged back in, I went off adventuring again, but I didn't notice that my Ocelots weren't following me. Now I ...
0
votes
1answer
9k views

How to stop winter? (Or, how to change a single biome in Minecraft / bukkit) [duplicate]

Possible Duplicate: Can I alter the biome of an area? After, copying my vanilla world to bukkit, the biome seems to have changed from tundra to snow (while the terrain is the same as I ...
4
votes
2answers
820 views

How to visualize and export player generated parts of a Minecraft world?

I build a few structure in different worlds which I'd now like to put into one single common world. Is there a way do this, preferably without having to manually select which parts of each world are ...
3
votes
4answers
2k views

How do I keep skeletons from jumping in my xp farm?

I have a simple xp farm using a skeleton spawner. My main problem with it is that the skeletons won't stop moving. Here's the basic setup as I have it right now: b=block w=water flow #=air w # b b ...
5
votes
2answers
6k views

When do redstone torches burn out?

I know that if I make a redstone circuit that switches too often, my redstone torches will 'burn out' and stop working. Under what circumstances does this happen? Will a slow circuit eventually burn ...
13
votes
1answer
14k views

What constitutes a house for villagers?

I was trying to create a small village in Minecraft. As I am in Single Player and wanted some neighbours, I spawned a few NPC villagers using spawn eggs. Even though they are good neighbours (they ...
2
votes
1answer
2k views

Can I give other players powertools?

Can I give other players the use of powertools via the Essentials plugin for Bukkit? Not the command (/powertool), but the ability to use an item as a powertool. Ex: I assign the use of /spawn to a ...
7
votes
1answer
5k views

Do armor enchantments stack?

I have diamond helmet/chest piece/legs with protection 2 or 3 on each one. I'm wondering if there's any point to wearing all at the same time or would I be better off just wearing one piece with the ...
19
votes
2answers
6k views

How do I keep my creepers from disappearing?

I spawned a bunch of creepers in the morning and locked them all inside a "creeper pen" I made. And then when night falls only 4 out of the 20+ in the pen were remaining. So where did they go? How ...
32
votes
3answers
88k views

Is there a way to see Minecraft's source code?

I'm interested in browsing the Minecraft source code and see its classes - especially the code controlling the creeper. Is there a way to do that? Maybe open the minecraft.jar file and peek inside?
5
votes
2answers
843 views

Exploring the locations of monsters in a Minecraft map

I am trying to "debug" my large monster spawning room. I am aware that all surrounding caves must be lit, but my trap still seems to wind down after a few minutes. I would ideally like to use a tool ...
4
votes
3answers
2k views

Minecraft FPS irregular in fullscreen, but reporting 35-45

How to reproduce: Start the PC, and log in to Linux Mint 12 (although I'm pretty sure the same issue appeared on Ubuntu 11.10 as well) Start Minecraft Maximise the window Have smooth experience at ...
0
votes
2answers
3k views

How can I make water flow into a 1-block gap?

I have some water blocks (the first line of blocks are directly placed water-sources while the others are flowing water) and I want the water to flow into an empty space, but it's not: s - water ...
13
votes
4answers
46k views

How can I get my redstone to activate adjacent pistons?

I'm trying to create my first circuit in minecraft: a - pressure plate p - piston d - dirt - or | - redstone   a----dddd pppp Pistons are placed over the dirt and there's water under ...
2
votes
2answers
50k views

Can multiple people share a single Minecraft account on my server?

I'm new to the Minecraft server world and I have a question: is it possible to let multiple users play on the same account on my Minecraft server?
4
votes
0answers
3k views

How do I change my offline name on the mac? [duplicate]

Possible Duplicate: How do I change player name in Minecraft smp in offline mode on a Mac? I want to change my offline name in MineCraft on my mac. I have only found ways to change it on ...