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.
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.
// 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);
});
});
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));
}
});
ReadonlygameReadonlyscoreboardReadonlystructureReturns the manager for Structure related APIs.
import { EntityHealthComponent, system, world } from "@minecraft/server";
system.runInterval(() => {
for (const player of world.getPlayers()) {
const health = player.getComponent(EntityHealthComponent.componentId);
player.onScreenDisplay.setActionBar(
`Name: ${
player.name
} | Health: ${health.currentValue.toFixed()} / ${
health.effectiveMax
}`
);
}
}, 5000);
The property identifier.
Returns the value for the property, or undefined if the property has not been set.
import * as mc from '@minecraft/server';
function incrementProperty(propertyName: string): boolean {
let number = mc.world.getDynamicProperty(propertyName);
console.warn('Current value is: ' + number);
if (number === undefined) {
number = 0;
}
if (typeof number !== 'number') {
console.warn('Number is of an unexpected type.');
return false;
}
mc.world.setDynamicProperty(propertyName, number + 1);
return true;
}
incrementProperty('samplelibrary:number');
import * as mc from '@minecraft/server';
function updateWorldProperty(propertyName: string): boolean {
let paintStr = mc.world.getDynamicProperty(propertyName);
let paint: { color: string; intensity: number } | undefined = undefined;
console.log('Current value is: ' + paintStr);
if (paintStr === undefined) {
paint = {
color: 'purple',
intensity: 0,
};
} else {
if (typeof paintStr !== 'string') {
console.warn('Paint is of an unexpected type.');
return false;
}
try {
paint = JSON.parse(paintStr);
} catch (e) {
console.warn('Error parsing serialized struct.');
return false;
}
}
if (!paint) {
console.warn('Error parsing serialized struct.');
return false;
}
paint.intensity++;
paintStr = JSON.stringify(paint); // be very careful to ensure your serialized JSON str cannot exceed limits
mc.world.setDynamicProperty(propertyName, paintStr);
return true;
}
updateWorldProperty('samplelibrary:longerjson');
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, Vector3 } from '@minecraft/server';
const players = world.getPlayers();
const targetLocation: Vector3 = {
x: 0,
y: 0,
z: 0,
};
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);
OptionalsoundOptions: WorldSoundOptionsAn error will be thrown if volume is less than 0.0. An error will be thrown if fade is less than 0.0. An error will be thrown if pitch is less than 0.01. An error will be thrown if volume is less than 0.0.
import { world, MusicOptions, WorldSoundOptions, PlayerSoundOptions, Vector3 } from '@minecraft/server';
const players = world.getPlayers();
const targetLocation: Vector3 = {
x: 0,
y: 0,
z: 0,
};
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);
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.
import { world } from '@minecraft/server';
// Displays "Apple or Coal"
const rawMessage = {
translate: 'accessibility.list.or.two',
with: { rawtext: [{ translate: 'item.apple.name' }, { translate: 'item.coal.name' }] },
};
world.sendMessage(rawMessage);
import { world } from '@minecraft/server';
// Displays the player's score for objective "obj". Each player will see their own score.
const rawMessage = { score: { name: '*', objective: 'obj' } };
world.sendMessage(rawMessage);
The property identifier.
Optionalvalue: string | number | boolean | Vector3Data value of the property to set.
import * as mc from '@minecraft/server';
function incrementProperty(propertyName: string): boolean {
let number = mc.world.getDynamicProperty(propertyName);
console.warn('Current value is: ' + number);
if (number === undefined) {
number = 0;
}
if (typeof number !== 'number') {
console.warn('Number is of an unexpected type.');
return false;
}
mc.world.setDynamicProperty(propertyName, number + 1);
return true;
}
incrementProperty('samplelibrary:number');
import * as mc from '@minecraft/server';
function updateWorldProperty(propertyName: string): boolean {
let paintStr = mc.world.getDynamicProperty(propertyName);
let paint: { color: string; intensity: number } | undefined = undefined;
console.log('Current value is: ' + paintStr);
if (paintStr === undefined) {
paint = {
color: 'purple',
intensity: 0,
};
} else {
if (typeof paintStr !== 'string') {
console.warn('Paint is of an unexpected type.');
return false;
}
try {
paint = JSON.parse(paintStr);
} catch (e) {
console.warn('Error parsing serialized struct.');
return false;
}
}
if (!paint) {
console.warn('Error parsing serialized struct.');
return false;
}
paint.intensity++;
paintStr = JSON.stringify(paint); // be very careful to ensure your serialized JSON str cannot exceed limits
mc.world.setDynamicProperty(propertyName, paintStr);
return true;
}
updateWorldProperty('samplelibrary:longerjson');
A class that wraps the state of a world - a set of dimensions and the environment of Minecraft.