minecraft-bot/bot.py

if __name__ == '__main__':
    print('Run main.py instead.')
    exit(1)

import os
import time
import importlib
from math import floor, ceil
from copy import copy

USERNAME = os.environ['USERNAME']
PASSWORD = os.environ['PASSWORD']
SERVER = os.environ['SERVER']
PORT = int(os.environ.get('PORT', 25565))

import monkey_patch # must be before any possible pyCraft imports

from minecraft import authentication
from minecraft.exceptions import YggdrasilError
from minecraft.networking.connection import Connection
from minecraft.networking.packets import Packet, clientbound, serverbound

from protocol.managers import DataManager, ChunksManager, ChatManager, ChunkNotLoadedException

from munch import Munch
from vector import Point3D, Vector3D

import blocks
import game
import items
import job
import mcdata
import mobs
import path
import print_help
import utils
import vector

for module in [
    blocks,
    game,
    items,
    job,
    mcdata,
    mobs,
    path,
    print_help,
    utils,
    vector,
]:
    importlib.reload(module)

last_tick = time.time()

PITCH_ANGLE_DIR = Vector3D((0, 1, 0))
YAW_ANGLE_DIR = Vector3D((0, 0, -1))
YAW_ANGLE_REF = Vector3D((0, 1, 0))
YAW_LOOK_AHEAD = 4



def tick(global_state):
    g = global_state
    p = g.pos

    target = None

    # make sure current chunks are loaded for physics
    if not g.chunks.check_loaded(p, 288):
        if not g.chunks.loading:
            print('Loading chunks', end='', flush=True)
            g.chunks.loading = True
        packet = serverbound.play.PositionAndLookPacket(x=p.x, feet_y=p.y, z=p.z, pitch=0, yaw=0, on_ground=True)
        g.connection.write_packet(packet, force=True)
        return
    else:
        if g.chunks.loading:
            print()
            print('Chunks loaded.')
        g.chunks.loading = False

    g.chunks.unload_chunks(p)

    ########## object physics ##########
    # note: it's possible the chunk data is out of date when this runs

    for eid, obj in copy(g.objects).items():
        if obj.velocity_x:
            obj.x += obj.velocity_x / 8000
        if obj.velocity_y:
            obj.y += obj.velocity_y / 8000
        if obj.velocity_z:
            obj.z += obj.velocity_z / 8000

        block_below = g.chunks.get_block_at(floor(obj.x), floor(obj.y-0.20), floor(obj.z))
        in_air = block_below in blocks.NON_SOLID_IDS

        if in_air:
            obj.velocity_x *= 0.988
            obj.velocity_y -= 390
            obj.velocity_z *= 0.988
        else:
            obj.y = int(obj.y-0.20)+1
            obj.velocity_x *= 0.5
            obj.velocity_y = 0
            obj.velocity_z *= 0.5

        # float object back up in case it clipped through multiple blocks
        if g.chunks.get_block_at(floor(obj.x), floor(obj.y), floor(obj.z)) not in blocks.NON_SOLID_IDS:
            obj.y += 0.05

        if abs(obj.velocity_x) < 1: obj.velocity_x = 0
        if abs(obj.velocity_z) < 1: obj.velocity_z = 0


    ########## player physics ##########

    if g.path and len(g.path):
        target = Point3D(g.path[0])
        target.x += 0.5
        target.z += 0.5

    if g.afk_timeout > 0:
        target = None
        g.afk_timeout -= utils.TICK

    if target:
        d = p - target

        # jump up block
        if d.y < -0.9 and not g.y_v:
            g.y_v = 8.5
            g.y_a = -36.0

        # jump gap
        if d.xz.length() > 1.6 and not g.y_v:
            g.y_v = 8.5
            g.y_a = -36.0

        if d.length() > 0:
            if g.y_v < 5:
                p.x -= utils.cap(d.x, 0.2)
                p.z -= utils.cap(d.z, 0.2)

        if len(g.path) > 1 and d.length() < 0.2:
            # removes some jitter in walking
            g.path.pop(0)
        elif d.length() == 0:
            g.path.pop(0)

    if g.y_v or g.y_a:
        p.y += g.y_v * utils.TICK
        g.y_v += g.y_a * utils.TICK

    block_below = g.chunks.get_block_at(floor(p.x), ceil(p.y-1), floor(p.z))
    block_above = g.chunks.get_block_at(floor(p.x), ceil(p.y+1), floor(p.z))
    in_void = p.y < 0
    in_air = block_below in blocks.NON_SOLID_IDS or in_void
    in_water = block_below in blocks.WATER_IDS
    g.crawling = block_above not in blocks.NON_SOLID_IDS

    if in_air:
        g.y_a = -36.0
    elif in_water:
        g.y_a = -16.0
    else:
        p.y = ceil(p.y)
        g.y_v = 0
        g.y_a = 0

    if g.look_at:
        look_at = Point3D(g.look_at)
    elif g.path and len(g.path) > YAW_LOOK_AHEAD:
        look_at = Point3D(g.path[YAW_LOOK_AHEAD])
    elif g.path and len(g.path):
        look_at = Point3D(g.path[-1])
    else:
        look_at = None

    if look_at:
        look_at.x += 0.5
        look_at.z += 0.5
        look_at_d = p - look_at

        if look_at_d.length() > 0.6:
            target_pitch = look_at_d.normalized().angleDeg(PITCH_ANGLE_DIR)
            target_pitch = (target_pitch - 90) * -1
            target_pitch_d = target_pitch - g.pitch
            g.pitch += utils.cap(target_pitch_d, 10)

        # remove vertical component for yaw calculation
        look_at_d.y = 0

        if look_at_d.length() > 0.6:
            target_yaw = look_at_d.normalized().signedAngleDeg(other=YAW_ANGLE_DIR, ref=YAW_ANGLE_REF)
            target_yaw_d = target_yaw - g.yaw
            target_yaw_d = (target_yaw_d + 180) % 360 - 180
            g.yaw += utils.cap(target_yaw_d, 30)
    else:
        target_pitch_d = 0 - g.pitch
        g.pitch += utils.cap(target_pitch_d, 10)

    packet = serverbound.play.PositionAndLookPacket(x=p.x, feet_y=p.y, z=p.z, pitch=g.pitch, yaw=g.yaw, on_ground=(not in_air))
    g.connection.write_packet(packet)

    g.game.tick()
    g.job.tick()


def init(global_state):
    g = global_state

    g.time = 0

    g.path = []
    g.look_at = None
    g.y_v = 0
    g.y_a = 0
    g.yaw = 360
    g.pitch = 0
    g.crawling = False

    g.breaking = None
    g.break_time = 0

    g.dumping = None
    g.draining = False
    g.item_lock = False
    g.command_lock = False

    g.trades = []

    g.job = job.JobStates(g)
    g.chopped_tree = False

    g.afk_timeout = 0

    g.filling = False

    g.minimum_cache_slots = 27
    g.maximum_supply_slots = 33

def bot(global_state):
    g = global_state

    if not g.mcdata:
        g.mcdata = DataManager('./minecraft_data')

    if not g.connection:
        auth_token = authentication.AuthenticationToken()
        try:
            auth_token.authenticate(USERNAME, PASSWORD)
        except YggdrasilError as e:
            print(e)
            sys.exit()
        print("Logged in as %s..." % auth_token.username)
        g.connection = Connection(SERVER, PORT, auth_token=auth_token)

        g.chunks = ChunksManager(g.mcdata)

        g.connection.connect()

    g.chunks.register(g.connection)

    g.chat = ChatManager(g)

    g.game = game.Game(g)
    g.world = game.MCWorld(g)

    try:
        while not g.pos:
            time.sleep(utils.TICK)
        print('Player loaded.')

        init(g)
        g.game.close_window()
        print('Initialized.')

        while g.running:
            tick(g)

            global last_tick
            sleep_time = utils.TICK + last_tick - time.time()
            if sleep_time < 0: sleep_time = 0
            time.sleep(sleep_time)
            last_tick = time.time()
    finally:
        print('Removing listeners...')
        g.connection.packet_listeners = []
        g.connection.early_packet_listeners = []
        g.connection.outgoing_packet_listeners = []
        g.connection.early_outgoing_packet_listeners = []

print('Bot module loaded.')