classicborne

A general purpose* Minecraft Classic server with CPE support.

import { BaseUniverse } from "classicborne/class/server/BaseUniverse.mjs"

const myUniverse = new BaseUniverse({
	port: 25565,
	postToMainServer: true,
})

// flush changes on all levels every 60 seconds
setInterval(() => {
	myUniverse.levels.forEach(async (level) => {
		level = await level
		if (level.changeRecord) level.changeRecord.flushChanges()
	})
}, 60000)

Extend it by subclassing base classes.

import { BaseLevel } from "classicborne/class/level/BaseLevel.mjs"
import { BasePlayer } from "classicborne/class/player/BasePlayer.mjs"
import { BaseUniverse } from "classicborne/class/server/BaseUniverse.mjs"

class MyLevel extends BaseLevel {
	/** */
	constructor(...args) {
		super(...args)
		this.positionEventListeners = new Map()
		this.on("playerRemoved", async (player) => {
			const positionEventListener = this.positionEventListeners.get(player)
			player.client.removeListener("position", positionEventListener)
		})
		this.on("playerAdded", async (player) => {
			const onPosition = (position) => {
				console.log(position)
			}
			player.client.on("position", onPosition)
			this.positionEventListeners.set(player, onPosition)
		})
	}

	static async teleportPlayer(player) {
		if (super.teleportPlayer(player) === false) return
		MyLevel.loadIntoUniverse(player.universe, "my-level").then(async (level) => {
			level.addPlayer(player, [60, 8, 4], [162, 254])
		})
	}
}

class MyPlayer extends BasePlayer {
	/** */
	async initialize(...args) {
		const authenticated = await super.initialize(...args)
		if (!authenticated) return
		this.universe.addPlayer(this)
		MyLevel.teleportPlayer(this)
	}
}

class MyUniverse extends BaseUniverse {
	static playerClass = MyPlayer
}

new MyUniverse({
	port: 25565,
	postToMainServer: false,
})

Features

• Support for Classic Protocol Extension (CPE).
• Multiple level management.
• Per-client entity ID assignment.
• Novel level data persistence.
  • It's just undoable history in a compact format.
  • Block changes and command issues are only recorded.
  • Optional caching of "keyframes" when restoring from changes alone takes long.
  • Each change can be undone.
• Basic "Watchdog" client monitor.

Projects using classicborne

• Voxel Telephone

See the GitHub topic for more.