prismarine-viewer

Web based viewer for servers and bots

Install

npm install prismarine-viewer

Example

const mineflayer = require('mineflayer')
const mineflayerViewer = require('prismarine-viewer').mineflayer

const bot = mineflayer.createBot({
  username: 'Bot'
})

bot.once('spawn', () => {
  mineflayerViewer(bot, { port: 3000 }) // Start the viewing server on port 3000

  // Draw the path followed by the bot
  const path = [bot.entity.position.clone()]
  bot.on('move', () => {
    if (path[path.length - 1].distanceTo(bot.entity.position) > 1) {
      path.push(bot.entity.position.clone())
      bot.viewer.drawLine('path', path)
    }
  })
})

More examples:

• First person bot example
• Record view as video file example
• Streaming video to a python script example
• Visualize a world, without a bot example

API

prismarine-viewer

mineflayer

Serve a webserver allowing to visualize the bot surrounding, in first or third person. Comes with drawing functionnalities.

const { mineflayer } = require('prismarine-viewer')

Options:

• viewDistance view radius, in chunks, default: 6
• firstPerson is the view first person ? default: false
• port the port for the webserver, default: 3000

example

standalone

Serve a webserver allowing to visualize a world.

const { standalone } = require('prismarine-viewer')

Options:

• version the version to use, default: 1.13.2
• generator a world generator function, default: (x, y, z) => 0
• center a vec3 to center the view on, default: new Vec3(0, 0, 0)
• viewDistance view radius, in chunks, default: 6
• port the port for the webserver, default: 3000

example

headless

Render the bot view and stream it to a file or over TCP.

const { headless } = require('prismarine-viewer')

Options:

• viewDistance view radius, in chunks, default: 6
• output the output file or a host:port address to stream to, default: output.mp4
• frames number of frames to record, -1 for infinite, default: 200
• width the width of a frame, default: 512
• height the height of a frame, default: 512

example

Drawing (mineflayer mode)

All drawing function have a unique id that can be used to replace or erase the primitive.

bot.viewer.drawLine (id, points, color=0xff0000)

Draw a line passing through all the points.

bot.viewer.erase (id)

Remove the primitive with the given id from the display.

Tests

node_modules/.bin/jest --verbose --runInBand --forceExit -t "1.16.1"