Minecraft function generator

Minecraft function generator DEFAULT

Castle Generator

Last updated on

Description

Instant Castle Generator, that creates a customizable castle without the need for any mods!

  • Release 1.1.0Java 1.16, stable, 2020/07/15
    • Added
      • support for Java Edition 1.16
      • progress messages in chat (how much of the castle was already generated)
    • Changed
      • loop now being updated by tick.json instead of a repeating command block
      • generating speed being 3 times slower to fix lag spikes in 1.16
  • Release 1.0.3Java 1.15, stable, 2019/12/19
    • Added
      • support for Java Edition 1.15
  • Release 1.0.2Java 1.14, stable
    • Added
      • support for Java Edition 1.14
  • Release 1.0.1Java 1.13, stable
    • Added
      • support for Java Edition 1.13
  • Initial ReleaseJava 1.12, 2018/02/20

If you experience any problems with this data pack, one of the options below may help you. Should none of those options address your problem, you may want to report a bug using the checkbox at the bottom.


There may be multiple reasons if the data pack appears to do nothing.

  • Make sure that you properly followed the installation guide.
  • You may use the data pack in the wrong Minecraft version or edition. Make sure that you are using it in Minecraft version 1.16-1.12!
  • Some "Unzipping" programs may wrap the unzipped folder in another folder. Open the folder and if there is only a single folder inside, that folder inside is the actual data pack! Move that single folder outside, and use it instead!

There may be multiple reasons if the data pack only works partially.

  • Check that you properly followed the installation guide.
  • You may use the data pack in the wrong Minecraft version or edition. Make sure that you are using Minecraft version 1.16-1.12!
  • Multiplayer: You are using the data pack on a modded Minecraft server like Spigot or Bukkit, which may break parts of the data pack.


I want to report a bug.


Frequently Asked Questions

Does this data pack work in Minecraft Bedrock?

No, this data pack only works in the Minecraft Java Edition.

Can I record this data pack for a video?

Yes. You can make videos about the data pack, stream it, or publish articles about it! But you need to give proper credit! For example, you can add the following to your description:

Data Pack: Castle Generator by IJAMinecraft Download: https://ijaminecraft.com/datapack/instant-castle-generator/

For more information, you should check out my Copyright License.

Can I reupload the data pack?

No, you are not allowed to reupload the data pack or modified versions of it. If you want to modify this data pack, you may only use it privately without sharing it publically.


How To Install

Select one of the following Minecraft versions to get a complete and easy-to-understand guide on how to install Castle Generator in the specific version of the Minecraft Java Edition!

  1. 1.16
  2. 1.15
  3. 1.14
  4. 1.13
  5. 1.12

Download

By downloading this data pack, you accept the Copyright License.

Sours: https://ijaminecraft.com/datapack/instant-castle-generator/
KeyType Default Value Description allow-flightboolean false Allows users to use flight on the server while in Survival mode, if they have a mod that provides flight installed.

With allow-flight enabled, griefers may become more common, because it makes their work easier. In Creative mode, this has no effect.

false - Flight is not allowed (players in air for at least 5 seconds get kicked).
true - Flight is allowed, and used if the player has a fly mod installed.
allow-netherboolean true Allows players to travel to the Nether.
false - Nether portals do not work.
true - The server allows portals to send players to the Nether.
broadcast-console-to-opsboolean true Send console command outputs to all online operators. broadcast-rcon-to-opsboolean true Send rcon console command outputs to all online operators. difficultystring easy Defines the difficulty (such as damage dealt by mobs and the way hunger and poison affects players) of the server.

If a legacy difficulty number is specified, it is silently converted to a difficulty name.

peaceful (0)
easy (1)
normal (2)
hard (3)
enable-command-blockboolean false Enables command blocks enable-jmx-monitoringboolean false Exposes an MBean with the Object name and two attributes and exposing the tick times in milliseconds.

In order for enabling JMX on the Java runtime you also need to add a couple of JVM flags to the startup as documented here.

enable-rconboolean false Enables remote access to the server console.
  • It's not recommended to expose RCON to the Internet, because RCON protocol transfers everything without encryption. Everything (including RCON password) communicated between the RCON server and client can be leaked to someone listening in on your connection.
sync-chunk-writesboolean true Enables synchronous chunk writes. enable-statusboolean true Makes the server appear as "online" on the server list.

If set to false, it will suppress replies from clients. This means it will appear as offline, but will still accept connections.

enable-queryboolean false Enables GameSpy4 protocol server listener. Used to get information about server. entity-broadcast-range-percentageinteger (10-1000) 100 Controls how close entities need to be before being sent to clients. Higher values means they'll be rendered from farther away, potentially causing more lag. This is expressed the percentage of the default value. For example, setting to 50 will make it half as usual. This mimics the function on the client video settings (not unlike Render Distance, which the client can customize so long as it's under the server's setting). force-gamemodeboolean false Force players to join in the default game mode.
false - Players join in the gamemode they left in.
true - Players always join in the default gamemode.
function-permission-levelinteger (1-4) 2 Sets the default permission level for functions.

See permission level for the details on the 4 levels.

gamemodestring survival Defines the mode of gameplay.

If a legacy gamemode number is specified, it is silently converted to a gamemode name.

survival (0)
creative (1)
adventure (2)
spectator (3)
generate-structuresboolean true Defines whether structures (such as villages) can be generated.
false - Structures are not generated in new chunks.
true - Structures are generated in new chunks.

Note:Dungeons still generate if this is set to false.

generator-settingsstring blankThe settings used to customize world generation. Follow its format and write the corresponding JSON string. Remember to escape all with . hardcoreboolean false If set to true, server difficulty is ignored and set to hard and players are set to spectator mode if they die. level-namestring world The "level-name" value is used as the world name and its folder name. The player may also copy their saved game folder here, and change the name to the same as that folder's to load it instead.
Characters such as ' (apostrophe) may need to be escaped by adding a backslash before them.
level-seedstring blankSets a world seed for the player's world, as in Singleplayer. The world generates with a random seed if left blank.
Some examples are: minecraft, 404, 1a2b3c.
level-typestring default Determines the type of map that is generated.
default - Standard world with hills, valleys, water, etc.
flat - A flat world with no features, can be modified with generator-settings.
largeBiomes - Same as default but all biomes are larger.
amplified - Same as default but world-generation height limit is increased.
buffet - Only for 1.15 or before. Same as default unless generator-settings is set.
default_1_1 - Only for 1.15 or before. Same as default, but counted as a different world type.
customized - Only for 1.15 or before. After 1.13, this value is no different than default, but in 1.12 and before, it could be used to create a completely custom world.
max-build-heightinteger 256 The maximum height allowed for building. Terrain may still naturally generate above a low height limit. 256 is the maximum possible, it also has to be a multiple of 8. max-playersinteger (0-(2^31 - 1)) 20 The maximum number of players that can play on the server at the same time. Note that more players on the server consume more resources. Note also, op player connections are not supposed to count against the max players, but ops currently cannot join a full server. However, this can be changed by going to the file called ops.json in the player's server directory, opening it, finding the op that the player wants to change, and changing the setting called bypassesPlayerLimit to true (the default is false). This means that that op does not have to wait for a player to leave in order to join. Extremely large values for this field result in the client-side user list being broken. max-tick-time
integer (0–(2^63 - 1)) 60000 The maximum number of milliseconds a single tick may take before the server watchdog stops the server with the message, A single server tick took 60.00 seconds (should be max 0.05); Considering it to be crashed, server will forcibly shutdown. Once this criterion is met, it calls System.exit(1).
-1 - disable watchdog entirely (this disable option was added in 14w32a)
max-world-size
integer (1-29999984) 29999984 This sets the maximum possible size in blocks, expressed as a radius, that the world border can obtain. Setting the world border bigger causes the commands to complete successfully but the actual border does not move past this block limit. Setting the max-world-size higher than the default doesn't appear to do anything.

Examples:

  • Setting max-world-size to 1000 allows the player to have a 2000×2000 world border.
  • Setting max-world-size to 4000 gives the player an 8000×8000 world border.
motdstring A Minecraft ServerThis is the message that is displayed in the server list of the client, below the name.
  • The MOTD supports color and formatting codes.
  • The MOTD supports special characters, such as "♥". However, such characters must be converted to escaped Unicode form. An online converter can be found here.
  • If the MOTD is over 59 characters, the server list may report a communication error.
network-compression-threshold
integer 256 By default it allows packets that are n-1 bytes big to go normally, but a packet of n bytes or more gets compressed down. So, a lower number means more compression but compressing small amounts of bytes might actually end up with a larger result than what went in.
-1 - disable compression entirely
0 - compress everything

Note:The Ethernet spec requires that packets less than 64 bytes become padded to 64 bytes. Thus, setting a value lower than 64 may not be beneficial. It is also not recommended to exceed the MTU, typically 1500 bytes.

online-modeboolean true Server checks connecting players against Minecraft account database. Set this to false only if the player's server is not connected to the Internet. Hackers with fake accounts can connect if this is set to false! If minecraft.net is down or inaccessible, no players can connect if this is set to true. Setting this variable to off purposely is called "cracking" a server, and servers that are present with online mode off are called "cracked" servers, allowing players with unlicensed copies of Minecraft to join.
true - Enabled. The server assumes it has an Internet connection and checks every connecting player.
false - Disabled. The server does not attempt to check connecting players.
op-permission-levelinteger (0-4) 4 Sets the default permission level for ops when using . player-idle-timeoutinteger 0 If non-zero, players are kicked from the server if they are idle for more than that many minutes.
Note:Idle time is reset when the server receives one of the following packets:
prevent-proxy-connectionsboolean false If the ISP/AS sent from the server is different from the one from Mojang Studios' authentication server, the player is kicked
true - Enabled. Server prevents users from using vpns or proxies.
false - Disabled. The server doesn't prevent users from using vpns or proxies.
pvpboolean true Enable PvP on the server. Players shooting themselves with arrows receive damage only if PvP is enabled.
true - Players can kill each other.
false - Players cannot kill other players (also known as Player versus Environment (PvE)).

Note:Indirect damage sources spawned by players (such as lava, fire, TNT and to some extent water, sand and gravel) still deal damage to other players.

query.portinteger (1-(2^16 - 2)) 25565 Sets the port for the query server (see enable-query). rate-limitinteger 0 Sets the maximum amount of packets a user can send before getting kicked. Setting to 0 disables this feature. rcon.passwordstring blankSets the password for RCON: a remote console protocol that can allow other applications to connect and interact with a Minecraft server over the internet. rcon.portinteger (1-(2^16 - 2)) 25575 Sets the RCON network port. resource-packstring blankOptional URI to a resource pack. The player may choose to use it.

Note that (in some versions before 1.15.2), the ":" and "=" characters need to be escaped with a backslash (\), e.g. http\://somedomain.com/somepack.zip?someparam\=somevalue

The resource pack may not have a larger file size than 100 MiB (Before 1.15: 50 MiB (≈ 50.4 MB)). Note that download success or failure is logged by the client, and not by the server.

resource-pack-prompt
string blank

Optional, adds a custom message to be shown on resource pack prompt when is used.

Expects chat component syntax, can contain multiple lines.

resource-pack-sha1
string blank Optional SHA-1 digest of the resource pack, in lowercase hexadecimal. It is recommended to specify this, because it is used to verify the integrity of the resource pack.

Note: If the resource pack is any different, a yellow message "Invalid sha1 for resource-pack-sha1" appears in the console when the server starts. Due to the nature of hash functions, errors have a tiny probability of occurring, so this consequence has no effect.

require-resource-packboolean false When this option is enabled (set to true), players will be prompted for a response and will be disconnected if they decline the required pack. server-ipstring blankThe player should set this if they want the server to bind to a particular IP. It is strongly recommended that the player leaves server-ip blank.
Set to blank, or the IP the player want their server to run (listen) on.
server-portinteger (1-(2^16 - 2)) 25565 Changes the port the server is hosting (listening) on. This port must be forwarded if the server is hosted in a network using NAT (if the player has a home router/firewall). simulation-distance[upcoming:JE 1.18][more information needed][more information needed][more information needed]snooper-enabledboolean true Sets whether the server sends snoop data regularly to http://snoop.minecraft.net.
false - disable snooping.
true - enable snooping.
spawn-animalsboolean true Determines if animals can spawn.
true - Animals spawn as normal.
false - Animals immediately vanish.

If the player has major lag, it is recommended to turn this off/set to false.

spawn-monstersboolean true Determines if monsters can spawn.
true - Enabled. Monsters appear at night and in the dark.
false - Disabled. No monsters.

This setting has no effect if difficulty = 0 (peaceful). If difficulty is not = 0, a monster can still spawn from a spawner.

If the player has major lag, it is recommended to turn this off/set to false.

spawn-npcsboolean true Determines whether villagers can spawn.
true - Enabled. Villagers spawn.
false - Disabled. No villagers.
spawn-protectioninteger 16 Determines the side length of the square spawn protection area as 2x+1. Setting this to 0 disables the spawn protection. A value of 1 protects a 3×3 square centered on the spawn point. 2 protects 5×5, 3 protects 7×7, etc. This option is not generated on the first server start and appears when the first player joins. If there are no ops set on the server, the spawn protection is disabled automatically as well. text-filtering-config[more information needed][more information needed][more information needed]use-native-transportboolean true Linux server performance improvements: optimized packet sending/receiving on Linux
true - Enabled. Enable Linux packet sending/receiving optimization
false - Disabled. Disable Linux packet sending/receiving optimization
view-distanceinteger (3-32) 10 Sets the amount of world data the server sends the client, measured in chunks in each direction of the player (radius, not diameter). It determines the server-side viewing distance.

10 is the default/recommended. If the player has major lag, this value is recommended to be reduced.

white-listboolean false Enables a whitelist on the server.

With a whitelist enabled, users not on the whitelist cannot connect. Intended for private servers, such as those for real-life friends or strangers carefully selected via an application process, for example.

false - No white list is used.
true - The file whitelist.json is used to generate the white list.

Note:Ops are automatically whitelisted, and there is no need to add them to the whitelist.

enforce-whitelistboolean false Enforces the whitelist on the server.

When this option is enabled, users who are not present on the whitelist (if it's enabled) get kicked from the server after the server reloads the whitelist file.

false - No user gets kicked if not on the whitelist.
true - Online users not on the whitelist get kicked.
Sours: https://minecraft.fandom.com/wiki/Server.properties
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Gear (item).gif
This article is a work in progress. 

Please help in the expansion or creation of this article by expanding or improving it. The talk page may contain suggestions.

Minecraft uses several different types of noise generators, specifically those making use of gradient noise, for the generation of terrain alongside other features.

Specifications[]

Noise generators can be defined by the following parameters:

  • Octaves: The amount of different copies of this noise generator, each scaled down from the last by a factor of 2. Fewer octaves result in an unnatural appearance. More octaves added with lacunarity result in a rougher fractal appearence reminiscent of proper terrain.
  • Frequency: [more information needed]
  • Factor: A value the noise is multiplied with after processing (lacunarity). To make the set of values more or less extreme.
  • Offset: A value added to the noise after processing. To shift the resulting set of values by this value.

These values are displayed and calculated differently in the code. Vanilla simply applies a "scale" value (frequency*(2^octaves)), defined as how much the noise generator increments per sampling (every four blocks).

Customization[]

Old Customized worlds (1.8-1.12)[]

This section of the article is empty. 

You can help by adding to it.

Custom worlds (1.16+)[]

This section of the article is empty. 

You can help by adding to it.

Types of noise generators[]

Stratum colors are determined using only the first 48 bits of the 64-bit world seed in Java Edition. The strata repeat every 64 blocks on the Y-axis, and the elevation of a particular stratum can vary through a biome by as much as 4 blocks. Stratum elevations vary with respect to the X-axis only, neglecting the Z-axis.

Terrain noise generators[]

These are used for defining the shape of generated terrain itself.

A table of default/hardcoded settings, as well as values resulting from these, is as follows. Note that not all of these are used in vanilla, but are instead used by mods such as CubicWorldGen.

Fundamental terrain noise generators (Overworld)
Generator Low noise High noise Selector noise Depth noise
Parameter X Y Z X Y Z X Z
Offset
0
0.5
0
Factor
1
12.75
1.024
Octaves
16
8
16
Frequency
0.00522...
0.00261...
0.00522...
0.01671...
0.00835...
0.01671...
0.00153...
Period
191.51
383.02
191.51
59.85
119.69
59.85
655.36
Increments per block
171.103
85.5515
171.103
2.138
1.069
2.138
50
Increments per sampling
684.412
342.206
684.412
8.555
4.278
8.555
200
Expected 32-bit overflow distance
12,550,824
25,101,648
12,550,824
1,004,065,920
2,008,131,841
1,004,065,920
42,949,672
Expected 64-bit overflow distance
53 quadrillion
107 quadrillion
53 quadrillion
4 quintillion
8 quintillion
4 quintillion
184 quadrillion

Low noise[]

Low noise is one of the two main noise generators used for defining terrain shape. This noise generator, which uses Perlin noise, is one which is actually used as a heightmap.

High noise[]

This is effectively identical to low noise, but is only used when selector noise is above a given threshold value.

Selector noise[]

Selector noise is a third important noise generator used for terrain generation. Selector noise, using Perlin noise, dictates which of either low noise or high noise is used for generating terrain at a given position - above 1 high noise is used, below 0 low noise is used, and values between 0-1 are linearly interpolated between the low and high noise values.

Depth noise[]

A rather insignificant noise generator, this uses Perlin noise to make terrain slightly more nuanced in general. The possible values it can have are tightly clamped to a thin set of values. It is also only defined for the X and Z axes.

Other noise generators[]

This section is missing information about Nether soul sand, gravel and equivalent of biome fill noise. 

Please expand the section to include this information. Further details may exist on the talk page.

These noise generators are oriented to the generation of other world features.

Decorative noise generators (Overworld)
Generator Biome fill noise Badlands noise pillar Badlands clay band offset noise Swamplands noise Flower distribution noise
Parameter X Z X Y Z X Y Z X Y Z X Y Z
Offset
3
?
?
?
?
Factor
2.333...
?
?
?
?
Octaves
4
?
?
?
?
Frequency
0.00781...
?
?
?
?
?
?
?
?
?
?
?
?
Period
128
?
?
?
?
?
?
?
?
?
?
?
?
Increments per block
0.0625
?
?
?
?
?
?
?
?
?
?
?
?
Increments per sampling
0.25
?
?
?
?
?
?
?
?
?
?
?
?
Expected 32-bit overflow distance
34,359,738,368
?
?
?
?
?
?
?
?
?
?
?
?
Expected 64-bit overflow distance
147 quintillion
?
?
?
?
?
?
?
?
?
?
?
?

Biome fill noise[]

Upon generation, a top layer block (e.g. dirt, sand) will be placed to a certain thickness to replace the bare stone heightmap. The thickness of this dirt relies on a noise generator in vanilla.

Biome distribution[]

Ocean biome variants are distributed using a Perlin noise function.

The Multi Noise Biome Source (used for the nether[verify]) also uses perlin noise.

Badlands clay band offset noise[]

This section of the article is empty. 

You can help by adding to it.

Badlands noise pillar[]

This section of the article is empty. 

You can help by adding to it.

Swamp noise[]

Swamps use a noise generator for two purposes: for the generation of marshy areas composing a mixture of water and grass blocks, and for the variation of the two different grass colors used.

Flower noise[]

The placement of flowers, most prominently in flower forest biomes but possibly also elsewhere, is controlled via a noise function. Flowers generated naturally will be in different positions from those grown via bone meal, and those grown via bone meal may not be seed dependent.[verify]

Removed noise generators[]

These are no longer used in the current version of the game.

Removed noise generators (Overworld)
Generator Infdev pre-0327 noise Island carver noise Scale noise Sand noise Gravel noise Tree density noise
Parameter X Z X Z X Z X Z X Z X Z
Offset
?
?
?
?
?
?
Factor
?
?
?
?
?
?
Octaves
16[verify]
16[verify]
16[verify]
4[verify]
4[verify]
?
Frequency
0.00195...
0.00007...
0.000009...
0.00391...
0.00391...
?
Period
512
14246.96
116924.175
256
256
?
Increments per block
64
2.3
0.28025
0.03125
0.03125
?
Increments per sampling
256
9.2
1.121
0.125
0.125
?
Expected 32-bit overflow distance
33,554,432
933,688,542
7,662,742,722
68,719,476,736
68,719,476,736
8,589,934,592
Expected 64-bit overflow distance
144 quadrillion
4 quintillion
32 quintillion
295 quintillion
295 quintillion
?

Major noise generation prior to Infdev 20100327[]

This section of the article is empty. 

You can help by adding to it.

Floating island carver noise[]

During Indev, floating islands were produced by using an extra noise generator to carve out air into existing terrain.

Scale noise[]

A noise generator that appears to only have effects in hilly areas, with little to no impact on flat low-lying regions. Its effects are now handled by biomes rather than noise generation.

Tree density noise[]

A noise generator existed in Infdev which dictated the density of trees in the world. This was likely removed in Alpha v1.2.0 with the introduction of biomes although is yet to be confirmed, as a similar noise generator also seems to exist in 1.12.2.

Sand noise[]

A noise generator was used for generating the surface block used for low-altitude areas commonly characteristic of beaches. This noise generator would determine if a given area would use sand as the surface block or not. This was probably removed in Beta 1.8.

Gravel noise[]

Effectively identical to sand noise and used in very similar cases, this determined where gravel would generate in beach-like areas.

Biomes prior to 1.0.0[]

This section of the article is empty. 

You can help by adding to it.

Overflowing[]

Main article: Far Lands

Noise generators are capable of overflowing once hitting the integer limit for their given data type, producing spectacular results. The most notable of these are the Far Lands, resulting in noise generator overflows being referred to as types of Far Lands as a result.

In current versions of Java Edition, overflowing is not usually visible without either direct modification to terrain generation code or possibly via custom world generation.

  • Selector noise overflowing; note how the noise pattern continues beyond the overflow for areas where the same noise is selected

  • Depth noise overflowing; note the incline (where it overflows) and the perpendicular rifts caused by it

  • Biome fill noise overflowing

  • Pre-inf-20100327 terrain generation noise overflowing

  • Floating island carver noise overflowing

References[]

Sours: https://minecraft.fandom.com/wiki/Noise_generator

haveyouwantto/index.html

<html><body><scripttype="text/javascript">functionsier(){letz=0for(z=-50;z<50;z++){letzs=zdraw(z)}}functiondraw(z){for(letx=-50;x<50;x++){lety=x^zsetTile(x,y,z,"redstone_block")}}functionsetTile(x,y,z,id){document.write("setblock ~"+x+" ~"+y+" ~"+z+" "+id+"<br>")}functionqiuling(x,y,z,r,l){y--letpi=Math.PI*0.5l=l*0.7leta=1.4letb=4letc=7letd=Math.random()*30+20leta1=Math.random()*300000leta2=Math.random()*50000000leta3=Math.random()*8000for(letm=-r;m<r;m++){for(letn=-r;n<r;n++){letls=(Math.cos(pi*m/r)*Math.cos(pi*n/r))*l-(Math.sin(pi*m*a/r+b)*Math.cos(pi*n*a/r+c))*l*0.25+(Math.cos(pi*m*a*2/r+b*d)+Math.sin(pi*n*a*2/r+c*d))*l*0.2-(Math.sin(pi*m*a*3/r+b*d*2)*Math.sin(pi*n*a*3/r+c*d*2))*l*0.15if(ls>0){setlongblock(x+m,y,z+n,ls)}}}}functionsetlongblock(x,y,z,l){for(leti=0;i<=l;i++){if(i>3)setTile(x,y+l-i,z,"stone")elseif(i>0)setTile(x,y+l-i,z,"dirt")elseif(i==0)setTile(x,y+l,z,"grass")}}qiuling(1395,4,317,20,10)</script></body>
Sours: https://gist.github.com/haveyouwantto/f2e0009e2f6c7b1cf2d5377a1cee8755

Generator minecraft function

How to Use the Function Command in Minecraft

This Minecraft tutorial explains how to use the /function command with screenshots and step-by-step instructions.

You can use the /function command to run a function in Minecraft. This is a great way to chain multiple commands without using a command block. Let's explore how to use this cheat (game command).

Supported Platforms

The /function command is available in the following versions of Minecraft:

* The version that it was added or removed, if applicable.
NOTE: Pocket Edition (PE), Xbox One, PS4, Nintendo Switch, and Windows 10 Edition are now called Bedrock Edition. We will continue to show them individually for version history.

Requirements

To run game commands in Minecraft, you have to turn cheats on in your world.

Function Command

  • Java
  • PE
  • Xbox
  • PS
  • Nintendo
  • Win10
  • Edu

Function Command in Minecraft Java Edition (PC/Mac)

In Minecraft Java Edition (PC/Mac), there are different syntaxes depending on the conditions that will run the function.

To always run a function (with no conditions):

/function <name>

To run a function only if the selector is matched:

/function <name> [if <selector>]

To run a function if the selector does not match:

/function <name> [unless <selector>]

Definitions

  • name is the function to run and must be formatted as:

  • selector is optional. It is a target selector that is used to describe either players or entities in the game. A selector must be included when preceeded by or .

Function Command in Minecraft Pocket Edition (PE)

In Minecraft Pocket Edition (PE), the syntax to run a function is:

/function <name>

Definitions

  • name is the name of the function to run. It can either be a filepath or a string value.

Function Command in Minecraft Xbox One Edition

In Minecraft Xbox One Edition, the syntax to run a function is:

/function <name>

Definitions

  • name is the name of the function to run. It can either be a filepath or a string value.

Function Command in Minecraft PS4 Edition

In Minecraft PS4 Edition, the syntax to run a function is:

/function <name>

Definitions

  • name is the name of the function to run. It can either be a filepath or a string value.

Function Command in Minecraft Nintendo Switch Edition

In Minecraft Nintendo Switch Edition, the syntax to run a function is:

/function <name>

Definitions

  • name is the name of the function to run. It can either be a filepath or a string value.

Function Command in Minecraft Windows 10 Edition

In Minecraft Windows 10 Edition, the syntax to run a function is:

/function <name>

Definitions

  • name is the name of the function to run. It can either be a filepath or a string value.

Function Command in Minecraft Education Edition

In Minecraft Education Edition, the syntax to run a function is:

/function <name>

Definitions

  • name is the name of the function to run. It can either be a filepath or a string value.

Where is the Function File Stored in Java Edition?

Each function belongs to a specific saved world.

When storing functions, you must first create a new folder under the folder for the saved world. You can then store your function within this new folder. The filename for the function must have a .mcfunction extension.

For example, you could create a new folder called for the saved world called World1. You would then store the function in this new folder. Depending on your version of Minecraft, this function would be saved under one of the following hidden paths (Note: path may be different on your system):

Path for Windows
C:\Users\<username>\AppData\Roaming\.minecraft\saves\World1\data\functions\digminecraft\give_diamond.mcfunction
Path for Mac
/Users/<username>/Library/Application Support/minecraft/saves/World1/data/functions/digminecraft/give_diamond.mcfunction

You could then run the file called with the following /function command:

/function digminecraft:give_diamond

As you can see, you do not need to enter the .mcfunction extension when using the /function command.

TIP #1: Make sure you are in the correct saved world. Since each function is stored under the folder for a specific saved world, the function can only be run from within that saved world.

TIP #2: Always run the /reload command after saving or changing a function file before using the /function command.

Examples

  • Java
  • PE
  • Xbox
  • PS
  • Nintendo
  • Win10
  • Edu

Example in Java Edition (PC/Mac) 1.12

To run the function with no conditions:

/function digminecraft:give_diamond

To run the function if there is a cow within 20 blocks:

/function digminecraft:create_fence if @e[type=cow,r=20]

To run the function if there are no llamas within 100 blocks:

/function digminecraft:chest unless @e[type=llama,r=100]

Example in Pocket Edition (PE)

To run a function called overpowered in Minecraft PE:

/function overpowered

Example in Xbox One Edition

To run a function called tools in Minecraft Xbox One Edition:

/function tools

Example in PS4 Edition

To run a function called resources in Minecraft PS4 Edition:

/function resources

Example in Nintendo Switch Edition

To run a function called weapons in Minecraft Nintendo Switch Edition:

/function weapons

Example in Windows 10 Edition

To run a function called defense in Minecraft Windows 10 Edition:

/function defense

Example in Education Edition

To run a function called lightning in Minecraft Education Edition:

/function lightning

How to Enter the Command

1. Open the Chat Window

The easiest way to run a command in Minecraft is within the chat window. The game control to open the chat window depends on the version of Minecraft:

2. Type the Command

In this example, we will run the function called give_diamond.mcfunction in Minecraft Java Edition (PC/Mac) 1.12 with the following command:

/function digminecraft:give_diamond

Type the command in the chat window. As you are typing, you will see the command appear in the lower left corner of the game window. Press the key to run the command.

function command

Once the cheat has been entered, all commands within the function will be executed.

completed function command

You will see the message "Executed 1 command(s) from function 'digminecraft:give_diamond'" appear in the lower left corner of the game window to indicate that the function was successfully run.

In this tutorial, the file called give_diamond.mcfunction is very simple and only has the following command inside:

give @p diamond

TIP: When entering commands inside your function, do not type the character at the start of each command.

If you want to execute multiple commands in a function, just enter each new command on a separate line inside the function file.

For example:

give @p diamond give @p gold_block setblock ~ ~ ~1 tnt 0 replace

Congratulations, you just learned how to use the /function command in Minecraft!

Other Game Commands

You can use other commands and cheats in Minecraft such as:

Sours: https://www.digminecraft.com/game_commands/function_command.php
Learn JavaScript Generators In 12 Minutes

What sources of randomness can be made with commands in Minecraft?

MinMax
-21474836482147483647

Details

The simplest solution is not to use an actual random generator at all, because it's not really needed. The randomness can come from a user input instead.

What I mean by that is that you can have a rapidly changing scoreboard objective, and evaluate the score at the moment a button is pressed.

First set up your randomness objective using

There used to be a which would automatically increase it by 1 every single game tick without another command needed, and it will not be the same for every player (if that is not desired, resetting it for everyone works). However, because updates have removed this statistic, we would need to implement our own commands to increase it by one tick.

Now create a fill/setblock clock and have it run

and you're done. To use your random numbers, make one command block for every single outcome and include with your target selector arguments, where is the score to use, running from 0 to 8(!). Trigger all of these at the same time. For example

If your command does not use a target selector argument, you can (ab)use for that, e.g.

Nowadays in 1.13+, it is advised not to use this as there are much better alternatives and it requires a running function. This is however the most easy way to generate random numbers.

Sours: https://gaming.stackexchange.com/questions/229610/what-sources-of-randomness-can-be-made-with-commands-in-minecraft

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