@nxg-org/mineflayer-physics-util/tests/actualBot.ts

Provides functionality for more accurate entity and projectile tracking.

import { pathfinder, goals } from "mineflayer-pathfinder";
import { Bot, createBot } from "mineflayer";
const physicsInject = require("mineflayer/lib/plugins/physics");
import loader, { BotcraftPhysics, EntityPhysics, EntityState, EPhysicsCtx } from "../src/index";
import { PlayerState } from "../src/physics/states";

const { Physics } = require("prismarine-physics");

const rl = require("readline").createInterface({
  input: process.stdin,
  output: process.stdout,
});

let bot1: Bot;
function buildBot() {
  console.log("hey!");

  const bot = createBot({
    host: process.argv[2] || 'localhost',
    port: Number(process.argv[3]),
    username: "testingbot",
    version: process.argv[4],
  });

  bot.on('login', () => {
    bot.chat("Hello! I am a testing bot!");
  })

  bot.once("spawn", async () => {
    bot.loadPlugin(loader);
    bot.loadPlugin(pathfinder);
    await bot.waitForTicks(20);
    (bot as any).physics.yawSpeed = 50;
    (bot as any).physics.pitchSpeed = 50;
    setupNewPhysics(bot);
    // setupNewPhysics(bot);
  });

  let wasOnGround = false;
  const printNextPos = false;

  bot.on("move", (pos) => {
    // console.log(pos);
    if (bot.entity.onGround && !wasOnGround) {
      // bot.chat("Hit the ground! " + bot.entity.position.toString());
    }
    wasOnGround = bot.entity.onGround;
  });

  // print whenever another player hits the ground
  const lastPositions: Record<string, boolean> = {};
  bot.on("entityMoved", (entity) => {
    if (entity.username && entity.username !== bot.username) {
      // check by seeing is y value is an integer
      if (Math.floor(entity.position.y) === entity.position.y && !lastPositions[entity.username]) {
        // check if in liquid
        const block = bot.blockAt(entity.position);
        if (block && (block.type === bot.registry.blocksByName.water.id || block.type === bot.registry.blocksByName.lava.id)) return;

        bot.chat(`${entity.username} hit the ground! ${entity.position.toString()}`);
        lastPositions[entity.username] = true;
      } else if (Math.floor(entity.position.y) !== entity.position.y) {
        lastPositions[entity.username] = false;
      }
    }
  });

  let usingNew = false;
  let oldSimulate: any = null;
  let state: PlayerState | null = null;

  function setupNewPhysics(bot: Bot) {
    if (usingNew) return;
    usingNew = true;
    oldSimulate = (bot.physics as any).simulatePlayer;

    const val = new BotcraftPhysics(bot.registry);

    (EntityState.prototype as any).apply = function (this: EntityState, bot: Bot) {
      console.log(this.control, this.isUsingItem);
      this.applyToBot(bot);
    };

    const ctx = EPhysicsCtx.FROM_BOT(val, bot);
    state = ctx.state as PlayerState;

    // EntityPhysics.prototype.simulate = function (ctx, world) {
    //   bot.physics.simulatePlayer(ctx.state, world);
    // }

    (bot.physics as any).autojumpCooldown = 0;
    // (bot.physics).jumpTicks = 0;

    (bot.physics as any).simulatePlayer = (...args: any[]) => {
      state!.update(bot);
      ctx.state.jumpTicks = 0; // allow immediate jumping
      return val.simulate(ctx, bot.world);
    };
  }

  bot.on("chat", async (user, message) => {
    const [cmd, ...args] = message.split(" ");
    const author = bot.nearestEntity((e) => e.username === user);

    switch (cmd) {
      case "using":
        bot.chat(`Using new physics: ${usingNew}`);
        break;
      case "lookatme":
        if (!author) return bot.chat("I can't see you!");
        bot.lookAt(author.position.offset(0, author.height, 0));
        break;
      case "status":
        const str0 = `pos: ${bot.entity.position.toString()}, vel: ${bot.entity.velocity.toString()}, yaw: ${bot.entity.yaw}, pitch: ${bot.entity.pitch}`;
        bot.chat(str0);
        
        const str = `onGround: ${bot.entity.onGround}, hCol: ${(bot.entity as any).isCollidedHorizontally}, vCol: ${
          (bot.entity as any).isCollidedVertically
        }, inWater: ${(bot.entity as any).isInWater}, inLava: ${(bot.entity as any).isInLava}`;
        bot.chat(str);

        if (state != null) {
          const str1 = `crouching: ${state.crouching}, sprinting: ${state.sprinting}`;
          bot.chat(str1);
        }
        break;
      case "use":
        if (bot.usingHeldItem) bot.deactivateItem();
        else bot.activateItem();
        break;
      case "useoff":
        bot.deactivateItem();
        bot.activateItem(true);
        break;
      case "control":
        if (args[0] === "clear") return bot.clearControlStates();
        if (args.length === 1) return bot.setControlState(args[0] as any, !bot.getControlState(args[0] as any));
        bot.setControlState(args[0] as any, args[1] === "true");
        break;
      case "sim":
        // turn all but the mentioned ones off
        const [time, ...controls] = args;
        bot.clearControlStates();
        for (const control of controls) {
          bot.setControlState(control as any, true);
        }

        for (let i = 0; i <= Number(time); i++) {
          console.log(bot.entity.position, bot.entity.velocity, i);
          await bot.waitForTicks(1);
        }
        bot.clearControlStates();

        break;
      case "reset":
        usingNew = false;
        bot.quit();
        await new Promise((res) => setTimeout(res, 3000));
        bot1 = buildBot();

        break;
      case "new":
        setupNewPhysics(bot);
        bot.chat("Switched to new physics!");
        break;
      case "jump":
        bot.setControlState("jump", true);
        break;
      case "come":
        if (!author) return bot.chat(`Cannot see ${user}!`);
        const goal0 = new goals.GoalNear(author.position.x, author.position.y, author.position.z, 3);
        bot.pathfinder.setGoal(goal0);
        break;
      case "goto":
        if (!author) return bot.chat(`Cannot see ${user}!`);
        const goal1 = new goals.GoalNear(Number(args[0]), Number(args[1]), Number(args[2]), 3);
        bot.pathfinder.setGoal(goal1);
        break;
      case "stop":
        bot.deactivateItem();
        bot.pathfinder.stop();
        bot.clearControlStates();
        bot.chat("Stopped!");
        break;
    }
  });

  rl.on("line", (line: any) => bot.chat(line));

  return bot;
}

bot1 = buildBot();