snow.js

var mineflayer = require('mineflayer');
var bot = mineflayer.createBot({
  host: "mobile.csie.ntu.edu.tw",
  username: "jomican_bot"
});


bot.on('chat', function(username, message) {
  var words, name, item, amount, destination;
  if (message === 'debug') {
    console.log(bot.inventory);
  } else if (message === 'list') {
    listInventory();
  } else if (message === 'look') {
    lookAt(username);
  } else if (/^toss (\d+) /.test(message)) {
    words = message.split(" ");
    amount = parseInt(words[1], 10);
    name = words[2];
    toss(name, amount);
  } else if (/^toss /.test(message)) {
    words = message.split(" ");
    name = words[1];
    toss(name);
  } else if (/^equip /.test(message)) {
    words = message.split(" ");
    destination = words[1];
    name = words[2];
    equip(name, destination);
  } else if (/^unequip /.test(message)) {
    words = message.split(" ");
    destination = words[1];
    unequip(destination);
  } else if (/^craft (\d+)/.test(message)) {
    words = message.split(" ");
    amount = parseInt(words[1], 10);
    name = words[2];
    craft(name, amount);
  } else if (message === "makesnow") {
    craft("snowBlock", 100);
  } else if (message === "use") {
    bot.chat("activating");
    bot.activateItem();
  } else if (message === "stop") {
    bot.chat("stopping");
    bot.clearControlStates();
    bot.deactivateItem();
  } else if (message === "dig") {
    digSnow();
  } else if (message === "food") {
    bot.chat("food: " + bot.food);
  } else if (message === "jump") {
    bot.setControlState('jump', true);
  } else if (message === "health") {
    bot.chat("health: " + bot.health);
  } else if (message === "difficulty") {
    bot.chat("difficulty: " + bot.game.difficulty);
  }
});


function listInventory() {
  bot.chat(bot.inventory.items().map(itemStr).join(", "));
}

function itemStr(item) {
  if (item) {
    return item.name + " x " + item.count;
  } else {
    return "(nothing)";
  }
}

function itemByName(name) {
  return bot.inventory.items().filter(function(item) {
    return item.name === name;
  })[0];
}

function findItemType(name) {
  var id;
  for (id in mineflayer.items) {
    var item = mineflayer.items[id];
    if (item.name === name) return item;
  }
  for (id in mineflayer.blocks) {
    var block = mineflayer.blocks[id];
    if (block.name === name) return block;
  }
  return null;
}

function lookAt(username) {
  var entity = bot.players[username].entity;
  bot.lookAt(entity.position.offset(0, entity.height, 0));
}

function equip(name, destination) {
  item = itemByName(name);
  if (item) {
    bot.equip(item, destination, function(err) {
      if (err) {
        bot.chat("unable to equip " + item.name);
        console.error(err.stack);
      } else {
        bot.chat("equipped " + item.name);
      }
    });
  } else {
    bot.chat("I have no " + name);
  }
}

function unequip(destination) {
  bot.unequip(destination, function(err) {
    if (err) {
      bot.chat("unable to unequip");
      console.error(err.stack);
    } else {
      bot.chat("unequipped");
    }
  });
}

function toss(name, amount) {
  if (amount === undefined) {
    item = itemByName(name);
    if (item) {
      bot.tossStack(item, function(err) {
        if (err) {
          bot.chat("unable to toss " + item.name);
          console.error(err.stack);
        } else {
          bot.chat("tossed " + item.name);
        }
      });
    } else {
      bot.chat("I have no " + name);
    }
  } else {
    item = itemByName(name);
    if (item) {
      bot.toss(item.type, null, amount, function(err) {
        if (err) {
          bot.chat("unable to toss " + item.name);
          console.error(err.stack);
        } else {
          bot.chat("tossed " + amount + " " + item.name);
        }
      });
    } else {
      bot.chat("I have no " + name);
    }
  }
}

function craft(name, amount, callback) {
  var item = findItemType(name);
  var craftingTable = findCraftingTable();
  var wbText = craftingTable ? "with a crafting table, " : "without a crafting table, ";
  if (item == null) {
    console.log(wbText + "unknown item: " + name);
  } else {
    var recipes = bot.recipesFor(item.id, null, 1, craftingTable);
    if (recipes.length) {
      console.log(wbText + "I can make " + item.name);
      bot.craft(recipes[0], amount, craftingTable, function(err) {
        if (err) {
          console.log("error making " + item.name);
          console.error(err.stack);
        } else {
          console.log("did the recipe for " + item.name + " " + amount + "times");
        }
        if (callback !== undefined) {
          callback();
        }
      });
    } else {
      console.log(wbText + "I can't make " + item.name);
      if (callback !== undefined) {
        callback();
      }
    }
  }
}

function doDigging() {
  // Do digging
  //
  block = nearestBlock("snow");
  if (block !== undefined) {
    bot.dig(block, function() {
      console.log('dig complete,', countItem('snowball'), "snow balls harvested");
      setTimeout(digSnow, 1000);
    });
  } else {
    bot.chat("Snow not found.");
    setTimeout(digSnow, 100);
  }
};

function nearestBlock(name) {
  item = findItemType(name);
  var cursor = mineflayer.vec3();
  for (cursor.x = bot.entity.position.x - 4; cursor.x < bot.entity.position.x + 4; cursor.x++) {
    for (cursor.y = bot.entity.position.y - 4; cursor.y < bot.entity.position.y + 4; cursor.y++) {
      for (cursor.z = bot.entity.position.z - 4; cursor.z < bot.entity.position.z + 4; cursor.z++) {
        var block = bot.blockAt(cursor);
        if (block.type == item.id) return block;
      }
    }
  }
}

function countItem(name) {
  item = findItemType(name);
  return bot.inventory.items().filter(function(i) {
    return i.type == item.id
  }).map(function(i) {
    return i.count
  }).reduce(function(p, c) {
    return p + c
  }, 0);
}

function digSnow() {
  if (countItem('snowball') >= 16) {
    console.log(countItem('snowball'), "snow balls, making block");
    setTimeout(function() {
      craft("snowBlock", 4, function() {
        setTimeout(digSnow, 1000)
      });
    }, 1000);
  } else if (countItem('snowBlock') >= 64) {
    setTimeout(function() {
      saveToChest("snowBlock", countItem('snowBlock'), digSnow);
    }, 100);
  } else {
    // Check shovel status
    //
    iron_shovel = findItemType("shovelIron");
    // console.log('Tool in hand:', bot.heldItem);
    // console.log(iron_shovel.id);
    if (!(bot.heldItem && bot.heldItem.type === iron_shovel.id)) {
      var shovel = bot.inventory.findInventoryItem(iron_shovel.id);
      if (!shovel) {
        bot.chat("No shovel left.");
      } else {
        bot.equip(shovel, 'hand', function(err) {
          if (err) throw err;
          console.log("Equipped with a new shovel.");
          doDigging();
        })
      }
    } else {
      doDigging();
    }
  }

};

bot.on('message', function(message, jsonMsg) {
  console.log(message);
  if (message.text == "§6若想接受傳送,輸入 §4/tpaccept§6") {
    bot.chat("/tpaccept");
  }
});
bot.on('spawn', function() {
  setTimeout(digSnow, 1500);
});

function findChest() {
  return findBlock([54, 130]);
}

function findBlock(listOfIds) {
  var cursor = mineflayer.vec3();
  for (cursor.x = bot.entity.position.x - 4; cursor.x < bot.entity.position.x + 4; cursor.x++) {
    for (cursor.y = bot.entity.position.y - 2; cursor.y < bot.entity.position.y + 4; cursor.y++) {
      for (cursor.z = bot.entity.position.z - 4; cursor.z < bot.entity.position.z + 4; cursor.z++) {
        var block = bot.blockAt(cursor);
        if (listOfIds.indexOf(block.type) >= 0) {
          console.log(cursor);
          return block;
        }
      }
    }
  }
}

function saveToChest(name, amount, callback) {
  console.log("saving to chest");
  var chestBlock = findChest();
  if (!chestBlock) {
    bot.chat("no chest found");
    callback();
    return;
  }
  var chest = bot.openChest(chestBlock);
  chest.on('open', function() {
    console.log("chest opened");
    setTimeout(function() {
      chest.deposit(findItemType(name).id, null, amount, function(err) {
        if (err) {
          console.log("unable to deposit " + amount + " " + name, err);
        } else {
          console.log("deposited " + amount + " " + name);
        }
        chest.close();
      });
    }, 1000);

  });
  chest.on('close', function() {
    console.log("chest closed");
    callback();
  });

}

function findCraftingTable() {
  var cursor = mineflayer.vec3();
  for (cursor.x = bot.entity.position.x - 4; cursor.x < bot.entity.position.x + 4; cursor.x++) {
    for (cursor.y = bot.entity.position.y - 4; cursor.y < bot.entity.position.y + 4; cursor.y++) {
      for (cursor.z = bot.entity.position.z - 4; cursor.z < bot.entity.position.z + 4; cursor.z++) {
        var block = bot.blockAt(cursor);
        if (block.type === 58) return block;
      }
    }
  }
}