ReadonlyafterContains a set of events that are applicable to the entirety of the world. Event callbacks are called in a deferred manner. Event callbacks are executed in read-write mode.
This property can be read in early-execution mode.
import { world } from "@minecraft/server";
const callback = world.afterEvents.itemUseOn.subscribe((event) => {
if (event.itemStack.typeId == "minecraft:water_bucket") {
event.source.sendMessage("You used water bucket once.");
// Unsubscribe callback after first use
world.afterEvents.itemUseOn.unsubscribe(callback);
}
});
ReadonlybeforeContains a set of events that are applicable to the entirety of the world. Event callbacks are called immediately. Event callbacks are executed in read-only mode.
This property can be read in early-execution mode.
import { world, DimensionLocation } from "@minecraft/server";
function customCommand(targetLocation: DimensionLocation) {
const chatCallback = world.beforeEvents.chatSend.subscribe((eventData) => {
if (eventData.message.includes("cancel")) {
// Cancel event if the message contains "cancel"
eventData.cancel = true;
} else {
const args = eventData.message.split(" ");
if (args.length > 0) {
switch (args[0].toLowerCase()) {
case "echo":
// Send a modified version of chat message
world.sendMessage(`Echo '${eventData.message.substring(4).trim()}'`);
break;
case "help":
world.sendMessage(`Available commands: echo <message>`);
break;
}
}
}
});
}
// Check out how BeforeEvents privilege system work:
// https://wiki.bedrock.dev/scripting/script-server.html#beforeevents-privilege-system
import { world, system, TimeOfDay } from "@minecraft/server";
// Use system.run()
world.beforeEvents.chatSend.subscribe((event) => {
event.cancel = true;
// setTime changes world state, must be run after its execution by a tick
system.run(() => {
world.setTimeOfDay(TimeOfDay.Night);
});
});
/**
* @param {number} ticks
*/
function sleep(ticks) {
return new Promise((resolve) => {
system.runTimeout(() => resolve(), ticks);
});
}
// Or execute function at a later tick using async functions
world.beforeEvents.chatSend.subscribe(async (event) => {
// synchronous code
event.cancel = true;
// asynchronous code
await sleep(10); // Pretend you have a sleep function that returns a promise that resolves in 10 ticks
world.setTimeOfDay(TimeOfDay.Night);
});
import { system, world } from "@minecraft/server";
const callback = world.beforeEvents.itemUseOn.subscribe((event) => {
if (event.itemStack.typeId == "minecraft:water_bucket") {
event.source.sendMessage(
"You cannot use water bucket at this time, please try again.",
);
event.cancel = true;
// Unsubscribe callback after first use
system.run(() => world.beforeEvents.itemUseOn.unsubscribe(callback));
}
});
ReadonlygameReadonlyis// Script by WavePlayz
import { world } from "@minecraft/server";
// Subscribe to the `playerSpawn` event, which is triggered when the world is initialized
world.afterEvents.playerSpawn.subscribe(() => {
// Check if the world is in hardcore mode
// Notify players about the current mode
if (world.isHardcore) {
world.sendMessage(
"Welcome to Hardcore mode! Be careful, as death is permanent.",
);
} else {
world.sendMessage("This world is not in Hardcore mode. Play safely!");
}
});
ReadonlyscoreboardReadonlystructureReturns the manager for Structure related APIs.
Betaimport { EntityHealthComponent, system, world } from "@minecraft/server";
system.runInterval(() => {
for (const player of world.getAllPlayers()) {
const health = player.getComponent(EntityHealthComponent.componentId);
player.onScreenDisplay.setActionBar(
`Name: ${player.name} | Health: ${health.currentValue.toFixed()} / ${health.effectiveMax}`,
);
}
}, 5000);
The default Overworld spawn location. By default, the Y coordinate is 32767, indicating a player's spawn height is not fixed and will be determined by surrounding blocks.
The name of the dimension. For example, "overworld", "nether" or "the_end".
The requested dimension
The property identifier.
Returns the value for the property, or undefined if the property has not been set.
import { world, DimensionLocation } from "@minecraft/server";
function incrementDynamicProperty(
log: (message: string, status?: number) => void,
targetLocation: DimensionLocation
) {
let number = world.getDynamicProperty("samplelibrary:number");
log("Current value is: " + number);
if (number === undefined) {
number = 0;
}
if (typeof number !== "number") {
log("Number is of an unexpected type.");
return -1;
}
world.setDynamicProperty("samplelibrary:number", number + 1);
}
import { world, DimensionLocation } from "@minecraft/server";
function incrementDynamicPropertyInJsonBlob(
log: (message: string, status?: number) => void,
targetLocation: DimensionLocation
) {
let paintStr = world.getDynamicProperty("samplelibrary:longerjson");
let paint: { color: string; intensity: number } | undefined = undefined;
log("Current value is: " + paintStr);
if (paintStr === undefined) {
paint = {
color: "purple",
intensity: 0,
};
} else {
if (typeof paintStr !== "string") {
log("Paint is of an unexpected type.");
return -1;
}
try {
paint = JSON.parse(paintStr);
} catch (e) {
log("Error parsing serialized struct.");
return -1;
}
}
if (!paint) {
log("Error parsing serialized struct.");
return -1;
}
paint.intensity++;
paintStr = JSON.stringify(paint); // be very careful to ensure your serialized JSON str cannot exceed limits
world.setDynamicProperty("samplelibrary:longerjson", paintStr);
}
// Script by WavePlayz
import { world } from "@minecraft/server";
// Subscribe to the `playerJoin` event, which is triggered when a player joins the world
world.afterEvents.playerJoin.subscribe((eventData) => {
// Extract the player entity from the event data
const player = eventData.player;
// Attempt to retrieve a custom dynamic property
const playersCount = world.getDynamicProperty("playersCount");
// If the property doesn't exist
playersCount ??= 0;
// set a default value
player.setDynamicProperty("playersCount", playersCount + 1);
});
A string array of active dynamic property identifiers.
import { world } from "@minecraft/server";
world.getDynamicPropertyIds().forEach((id) => {
const value = world.getDynamicProperty(id)!;
world.sendMessage(`Dynamic property ${id} has value ${value}`);
});
world.sendMessage(
"There are " + world.getDynamicPropertyIds().length + " dynamic properties",
);
import { MoonPhase, world } from "@minecraft/server";
// Get the current moon phase
const moonPhase: MoonPhase = world.getMoonPhase();
// Display a message based on the current moon phase
switch (moonPhase) {
case MoonPhase.FullMoon:
world.sendMessage("It's full moon!");
break;
case MoonPhase.WaningGibbous:
world.sendMessage("It's waning gibbous moon!");
break;
// Add cases for other moon phases as needed
default:
world.sendMessage("It's another phase of the moon.");
}
Optionaloptions: EntityQueryOptionsAdditional options that can be used to filter the set of players returned.
A player array.
Returns a set of players based on a set of conditions defined via the EntityQueryOptions set of filter criteria.
import { world } from "@minecraft/server";
world.getPlayers({ families: ["player"] });
import { EntityQueryOptions, world } from "@minecraft/server";
const entityQueryOptions: EntityQueryOptions = {
minLevel: 10,
maxLevel: 30,
tags: ["team_red"],
excludeNames: ["Admin"],
};
const filteredPlayers = world.getPlayers(entityQueryOptions);
console.log(
"Filtered Players:",
filteredPlayers.map((player) => player.name),
);
The time of day, in ticks, between 0 and 24000.
import { TimeOfDay, system, world } from "@minecraft/server";
function GetWorldTime() {
const daytime = world.getTimeOfDay() + 6000;
const datetime = new Date(daytime * 3.6 * 1000);
const hours =
datetime.getHours() < 10
? "0" + datetime.getHours()
: datetime.getHours();
const minutes =
datetime.getMinutes() < 10
? "0" + datetime.getMinutes()
: datetime.getMinutes();
return { hours, minutes };
}
system.runInterval(() => {
const { hours, minutes } = GetWorldTime();
for (const player of world.getAllPlayers()) {
player.onScreenDisplay.setActionBar(`Time - ${hours}:${minutes}`);
}
});
OptionalmusicOptions: MusicOptionsPlays a particular music track for all players.
This function can't be called in read-only mode.
import { world, MusicOptions, WorldSoundOptions, PlayerSoundOptions, DimensionLocation } from "@minecraft/server";
function playMusicAndSound(targetLocation: DimensionLocation) {
const players = world.getPlayers();
const musicOptions: MusicOptions = {
fade: 0.5,
loop: true,
volume: 1.0,
};
world.playMusic("music.menu", musicOptions);
const worldSoundOptions: WorldSoundOptions = {
pitch: 0.5,
volume: 4.0,
};
world.playSound("ambient.weather.thunder", targetLocation, worldSoundOptions);
const playerSoundOptions: PlayerSoundOptions = {
pitch: 1.0,
volume: 1.0,
};
players[0].playSound("bucket.fill_water", playerSoundOptions);
}
// Script by WavePlayz
import { world } from "@minecraft/server";
// Subscribe to the `playerSpawn` event, which is triggered when a player joins the world
world.afterEvents.playerSpawn.subscribe((eventData) => {
const player = eventData.player;
// Play a music track for the player when they join the world
player.playMusic("minecraft:music.game", {
volume: 1.0, // Volume level of the music (1.0 is normal)
fade: 0.5, // Fade in/out time in seconds
});
player.sendMessage("Welcome! Enjoy the music while you play.");
});
Identifier of the music track to play.
OptionalmusicOptions: MusicOptionsAdditional options for the music track.
The message to be displayed.
This method can throw if the provided RawMessage is
in an invalid format. For example, if an empty name string
is provided to score.
// Script by WavePlayz
import { world } from "@minecraft/server";
// Subscribe to the `playerSpawn` event, which is triggered when a player joins the world
world.afterEvents.playerSpawn.subscribe((eventData) => {
// ignore if player respawns
if (!eventData.initialSpawn) return;
const player = eventData.player;
// Construct a welcome message for the player who just joined
const welcomeMessage = `Welcome ${player.name}! Have fun in the world of Minecraft!`;
// Use world.sendMessage to broadcast the message to all players in the world
world.sendMessage(welcomeMessage);
// Notify the player specifically with a different message
player.sendMessage("Feel free to explore and build your adventure!");
});
Location of the spawn point. Note that this is assumed to be within the overworld dimension.
The difficulty we want to set the world to.
BetaA Record of key value pairs of the dynamic properties to set.
The property identifier.
Optionalvalue: string | number | boolean | Vector3Data value of the property to set.
import { world, DimensionLocation } from "@minecraft/server";
function incrementDynamicProperty(
log: (message: string, status?: number) => void,
targetLocation: DimensionLocation
) {
let number = world.getDynamicProperty("samplelibrary:number");
log("Current value is: " + number);
if (number === undefined) {
number = 0;
}
if (typeof number !== "number") {
log("Number is of an unexpected type.");
return -1;
}
world.setDynamicProperty("samplelibrary:number", number + 1);
}
import { world, DimensionLocation } from "@minecraft/server";
function incrementDynamicPropertyInJsonBlob(
log: (message: string, status?: number) => void,
targetLocation: DimensionLocation
) {
let paintStr = world.getDynamicProperty("samplelibrary:longerjson");
let paint: { color: string; intensity: number } | undefined = undefined;
log("Current value is: " + paintStr);
if (paintStr === undefined) {
paint = {
color: "purple",
intensity: 0,
};
} else {
if (typeof paintStr !== "string") {
log("Paint is of an unexpected type.");
return -1;
}
try {
paint = JSON.parse(paintStr);
} catch (e) {
log("Error parsing serialized struct.");
return -1;
}
}
if (!paint) {
log("Error parsing serialized struct.");
return -1;
}
paint.intensity++;
paintStr = JSON.stringify(paint); // be very careful to ensure your serialized JSON str cannot exceed limits
world.setDynamicProperty("samplelibrary:longerjson", paintStr);
}
// Script by WavePlayz
import { world } from "@minecraft/server";
// Subscribe to the `playerSpawn` event, which is triggered when a player joins the world
world.afterEvents.playerSpawn.subscribe((eventData) => {
// Extract the player entity from the event data
const player = eventData.player;
// Attempt to retrieve a custom dynamic property
let playersCount = world.getDynamicProperty("playersCount");
// If the property doesn't exist
playersCount ??= 0;
// set a default value
// @ts-ignore assuming playersCount is a number
player.setDynamicProperty("playersCount", playersCount + 1);
});
A class that wraps the state of a world - a set of dimensions and the environment of Minecraft.