PrismarineJS/prismarine-viewer

const canvas = createCanvas(width, height)

nicolasvac opened this issue · 2 comments

nicolasvac commented

Code:

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

const bot = mineflayer.createBot({
    username: 'Bot',
    host: "127.0.0.1",
    port: 25565
})

bot.once('spawn', () => {
    // rtmp stream
    const client = mineflayerViewer(bot, {output: 'rtmp://127.0.0.1:8089', frames: -1, width: 512, height: 512})
    bot.setControlState('jump', true)

    client.on('data', (data) => {
        const key = parseInt(data.toString(), 10)
        // console.log(key)
        bot.clearControlStates()
        if (key === 32) { // space
            bot.setControlState('jump', true)
        } else if (key === 81) { // left arrow
            bot.entity.yaw += 0.1
        } else if (key === 82) { // top arrow
            bot.setControlState('forward', true)
        } else if (key === 83) { // right arrow
            bot.entity.yaw -= 0.1
        } else if (key === 84) { // down arrow
            bot.setControlState('back', true)
        }
    })
})

Error:

D:\BigBox\bots\prismarine-test\node_modules\prismarine-viewer\lib\headless.js:18
  const canvas = createCanvas(width, height)
                 ^

TypeError: createCanvas is not a function
    at module.exports (D:\BigBox\bots\prismarine-test\node_modules\prismarine-viewer\lib\headless.js:18:18)
    at EventEmitter.<anonymous> (D:\BigBox\bots\prismarine-test\index.js:12:20)
    at Object.onceWrapper (node:events:509:28)
    at EventEmitter.emit (node:events:402:35)
    at Client.<anonymous> (D:\BigBox\bots\prismarine-test\node_modules\mineflayer\lib\plugins\health.js:13:11)
    at Object.onceWrapper (node:events:510:26)
    at Client.emit (node:events:402:35)
    at FullPacketParser.<anonymous> (D:\BigBox\bots\prismarine-test\node_modules\minecraft-protocol\src\client.js:91:12)
    at FullPacketParser.emit (node:events:390:28)
    at addChunk (D:\BigBox\bots\prismarine-test\node_modules\readable-stream\lib\_stream_readable.js:298:12)

Process finished with exit code 1

dependencies:

"dependencies": {
    "mineflayer": "^3.15.0",
    "prismarine-viewer": "^1.22.0"
  }
OBNinjaa commented

Try npm install node-canvas-webgl

IceTank commented

You need node-canvas-webgl installed to run prismarine-viewer in headless node. But that install will fail on windows unless you have extra windows build tools installed. It is easier to install a virtual machine and install prismarine-viewer in that. Uses less space too.

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