Debugging

// Display all options
options

// View changed settings only
debugChangedOptions

// Change render distance
options.renderDistance = 8

// Enable smooth lighting
options.smoothLighting = true

// Change FOV
options.fov = 90

// Enable debug packet logging (non-frequent packets only)
options.debugLogNotFrequentPackets = true

// Mineflayer bot instance
bot

// Three.js world renderer instance
world

// Local server instance (singleplayer only)
localServer
server // alias for localServer

// NBT utilities
nbt.simplify(someNbt) // Simplifies NBT data for easier reading

// Toggle all debug messages
debugToggle // Get current state and toggle
debugToggle = 'minecraft-protocol' // Enable specific namespace

// View top packet statistics
JSON.stringify(debugTopPackets)

// Packet name references
debugServerPacketNames // All server->client packet names
debugClientPacketNames // All client->server packet names

// Get all loaded chunk sections
world.sectionObjects

// Relative to current position (0,0 is current chunk)
debugSceneChunks

// Helper functions for chunk/section keys
chunkKey(xRel, zRel) // e.g., chunkKey(0, 1)
sectionKey(xRel, yRel, zRel) // e.g., sectionKey(1, 0, -1)

// Get camera position
world.getCameraPosition()

// Get block at cursor
cursorBlockRel(x, y, z) // With offset from cursor
cursorBlockRel() // Block at cursor

// Get entity at cursor
entityCursor()

// Holding block
holdingBlock

// View all loaded regions
localServer.overworld.storageProvider.regions

// Change world name
localServer.levelData.LevelName = 'MyWorld'
localServer.writeLevelDat()

// Enable ALL debug messages (WARNING: causes packet spam!)
debugToggle

// Recommended: Log only non-frequent packets
options.debugLogNotFrequentPackets = true

// View packet statistics
JSON.stringify(debugTopPackets)

// Inspect server packets
inspectPacket('position', false, true) // Full packet data
inspectPacket('position') // First argument only

// Inspect client packets
inspectPacket('position', true)

// Use wildcards
inspectPacket('entity_*') // All entity packets

// Custom listener
inspectPacket('chat', (data, name) => {
  console.log('Chat message:', data.message)
})

// Detach listener
const listener = inspectPacket('position')
listener.detach // Remove listener

// Camera position (updates continuously)
world.getCameraPosition()

// Current chunk position
`${Math.floor(bot.entity.position.x / 16)}, ${Math.floor(bot.entity.position.z / 16)}`

// Player velocity
bot.entity.velocity

// Current health and food
`HP: ${bot.health} Food: ${bot.food}`

// Loaded chunks count
Object.keys(world.sectionObjects).length

// Memory usage
(performance.memory.usedJSHeapSize / 1024 / 1024).toFixed(2) + ' MB'

// Request current metrics
requestMetrics()

// Custom performance tracking
markStart('myOperation')
// ... do something ...
markEnd('myOperation')

// View stats per second
statsPerSecAvg

// Add custom counter
addStatPerSec('myCounter')
statsPerSec // View current second's stats

// Check memory usage (Chrome only)
performance.memory.usedJSHeapSize / 1024 / 1024 // MB
performance.memory.totalJSHeapSize / 1024 / 1024
performance.memory.jsHeapSizeLimit / 1024 / 1024

// Download file from local server (singleplayer)
downloadFile('/world/playerdata/uuid.dat')
downloadFile('level.dat')

// Object utilities
keys(obj) // Object.keys shorthand
values(obj) // Object.values shorthand
len(obj) // Object.keys(obj).length

// Vector3 constructor
Vec3(x, y, z)

// Clear localStorage (keep specific keys)
clearStorage('serverList', 'options')

// Ignore specific packets (stored in sessionStorage)
sessionStorage.ignorePackets = ['keep_alive', 'entity_velocity']

?reconnect=true

?addPing=100

?setting=renderDistance:4&setting=smoothLighting:false

// Watch player position and velocity
bot.entity.position
bot.entity.velocity

// Check if on ground
bot.entity.onGround

// View current control state
bot.controlState

// Check loaded chunks
Object.keys(world.sectionObjects).length

// View specific chunk section
world.sectionObjects['0,64,0'] // x, y, z

// Toggle chunk borders
options.showChunkBorders = true

// Reload all chunks
// Press F3 + A

// Enable packet logging
options.debugLogNotFrequentPackets = true

// Check connection state
bot._client.state

// View server info
bot.game

options.mouseRawInput = false