main.js

/**
 * __main__
 */


var bot;
var botId;

var lenColumns;
var lenRows;

var round;
var field;

var readline = require('readline');

var rl = readline.createInterface({ 
  input: process.stdin,
  output: process.stdout,
  terminal: false
});

rl.on('line', function(line) {
  log('line : ' + line);

  try { 
    processLine(line);
  } catch (err) {
    log('Error : ' + err);
  }
});

function log(message) {
  console.error('Log : ' + message);
}

function processLine(line) {
  if (!line || line.length === 0)
    return;

  var splits = line.split(' ');
  var params = splits.slice(1);
  
  switch(splits[0]) {
    case 'settings' :
      processSettings.apply(null, params);
      break;
    case 'update' :
      processUpdate.apply(null, params);
      break;
    case 'action' :
      processAction.apply(null, params);
      break;
  }
}

function processSettings(type, value) {
  log('settings : type : ' + type + ' value : ' + value);
  switch(type) {
    case 'your_bot' : 
      bot = value;
      break;
    case 'your_botid' :
      botId = value;
      break;
    case 'field_columns' :
      lenColumns = parseInt(value);
      break;
    case 'field_rows' :
      lenRows = parseInt(value);
      break;
  }
}

function processUpdate(updateType, type, value) {
  log('update : type : ' + type + ' value : ' + value);
  switch(type) {
    case 'round' :
      round = parseInt(value);
      break;
    case 'field' :
      processField(value);
      break;
  }
}

function processField(strField) {
  var rows = strField.split(';');

  field = [];

  for(var i in rows) {
    var vals = rows[i].split(',');
    field[i] = vals.map(function(strVal) {
      return parseInt(strVal);
    });
  }

  log(field);
}

function processAction(type, value) {
  log('update : type : ' + type + ' value : ' + value);
  switch(type) {
    case 'move' :
      log('remaining time : ' + value);
      processMove();
      break;
  }
}

function processMove() {
  var topField = field[0];
  var index = -1;
  do {
    index = Math.round(Math.random() * (topField.length - 1));
  } while (topField[index] != 0)

  log('index ' + index);
  process.stdout.write('place_disk ' + index + '\n');
}