128 lines
3.2 KiB
JavaScript
128 lines
3.2 KiB
JavaScript
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/*
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* Never spend hours mining from ground to bedrock again!
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*
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* Learn how to create a simple bot that is capable of digging the block
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* below his feet and then going back up by creating a dirt column to the top.
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*
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* As always, you can send the bot commands using chat messages, and monitor
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* his inventory at any time.
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*
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* Remember that in survival mode he might not have enough dirt to get back up,
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* so be sure to teach him a few more tricks before leaving him alone at night.
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*/
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const mineflayer = require('mineflayer')
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const vec3 = require('vec3')
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if (process.argv.length < 4 || process.argv.length > 6) {
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console.log('Usage : node digger.js <host> <port> [<name>] [<password>]')
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process.exit(1)
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}
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const bot = mineflayer.createBot({
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host: process.argv[2],
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port: parseInt(process.argv[3]),
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username: process.argv[4] ? process.argv[4] : 'digger',
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password: process.argv[5]
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})
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bot.on('chat', async (username, message) => {
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if (username === bot.username) return
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switch (message) {
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case 'loaded':
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await bot.waitForChunksToLoad()
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bot.chat('Ready!')
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break
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case 'list':
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sayItems()
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break
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case 'dig':
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dig()
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break
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case 'build':
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build()
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break
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case 'equip dirt':
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equipDirt()
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break
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}
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})
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function sayItems (items = bot.inventory.items()) {
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const output = items.map(itemToString).join(', ')
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if (output) {
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bot.chat(output)
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} else {
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bot.chat('empty')
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}
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}
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async function dig () {
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let target
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if (bot.targetDigBlock) {
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bot.chat(`already digging ${bot.targetDigBlock.name}`)
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} else {
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target = bot.blockAt(bot.entity.position.offset(0, -1, 0))
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if (target && bot.canDigBlock(target)) {
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bot.chat(`starting to dig ${target.name}`)
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try {
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await bot.dig(target)
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bot.chat(`finished digging ${target.name}`)
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} catch (err) {
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console.log(err.stack)
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}
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} else {
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bot.chat('cannot dig')
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}
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}
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}
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function build () {
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const referenceBlock = bot.blockAt(bot.entity.position.offset(0, -1, 0))
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const jumpY = Math.floor(bot.entity.position.y) + 1.0
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bot.setControlState('jump', true)
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bot.on('move', placeIfHighEnough)
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let tryCount = 0
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async function placeIfHighEnough () {
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if (bot.entity.position.y > jumpY) {
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try {
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await bot.placeBlock(referenceBlock, vec3(0, 1, 0))
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bot.setControlState('jump', false)
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bot.removeListener('move', placeIfHighEnough)
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bot.chat('Placing a block was successful')
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} catch (err) {
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tryCount++
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if (tryCount > 10) {
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bot.chat(err.message)
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bot.setControlState('jump', false)
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bot.removeListener('move', placeIfHighEnough)
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}
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}
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}
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}
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}
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async function equipDirt () {
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let itemsByName
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if (bot.supportFeature('itemsAreNotBlocks')) {
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itemsByName = 'itemsByName'
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} else if (bot.supportFeature('itemsAreAlsoBlocks')) {
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itemsByName = 'blocksByName'
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}
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try {
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await bot.equip(bot.registry[itemsByName].dirt.id, 'hand')
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bot.chat('equipped dirt')
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} catch (err) {
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bot.chat(`unable to equip dirt: ${err.message}`)
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}
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}
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function itemToString (item) {
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if (item) {
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return `${item.name} x ${item.count}`
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} else {
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return '(nothing)'
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}
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}
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