dream-cheeky-driver/scripts/dcDriver.js

Driver for Dream Cheeky Missile Launcher

define(['usb', 'signal', 'trigger', 'deviceConstants', 'shortHandTranslationMap', 'underscore'], function(usb, signal, trigger, DEVICE_CONSTANTS, shortHandTranslationMap, __){

  var DCDriver = {};

  DCDriver.DEVICE_CONSTANTS = DEVICE_CONSTANTS;

  DCDriver.turnOnDebugMode = function(){ 
    usb.setDebugLevel(4);
  };

  DCDriver.turnOffDebugMode = function(){
    usb.setDebugLevel(0);
  }


  DCDriver.moveUp = function (durationMS, callback) {
    signal(DEVICE_CONSTANTS.CMD.UP, durationMS, callback);
  };

  DCDriver.moveDown = function (durationMS, callback) {
    signal(DEVICE_CONSTANTS.CMD.DOWN, durationMS, callback);
  };

  DCDriver.moveLeft = function (durationMS, callback) {
    signal(DEVICE_CONSTANTS.CMD.LEFT, durationMS, callback);
  };

  DCDriver.moveRight = function (durationMS, callback) {
    signal(DEVICE_CONSTANTS.CMD.RIGHT, durationMS, callback);
  };

  DCDriver.stop = function (callback) {
    if (__.isFunction(callback) && callback !== DCDriver.stop) {
      signal(DEVICE_CONSTANTS.CMD.STOP, 0, callback);
    } else {
      signal(DEVICE_CONSTANTS.CMD.STOP);
    }
  };

  DCDriver.fire = function (number, callback) {
    number = __.isNumber(number) && number >= 0 && number <= DEVICE_CONSTANTS.MISSILES.NUMBER ? number : 1;
    if (number === 0) {
      DCDriver.stop(callback);
    } else {
      signal(DEVICE_CONSTANTS.CMD.FIRE, DEVICE_CONSTANTS.MISSILES.RELOAD_DELAY_MS, trigger(DCDriver.fire, number - 1, callback));
    }
  };

  DCDriver.park = function (callback) {
    DCDriver.execute('l8000,d2000', callback);
  };

  DCDriver.execute = function (commands, callback) {
    if (__.isString(commands)) {
      DCDriver.execute(commands.split(','), callback);
    } else if (commands.length === 0) {
      DCDriver.stop(callback);
    } else {
      var command = commands.shift();
      var func = command.length > 0 ? DCDriver[shortHandTranslationMap[command[0]]] : null;
      if (__.isFunction(func)) {
        var next = trigger(DCDriver.execute, commands, callback);
        if (func === DCDriver.park || func === DCDriver.stop) {
          func(next);
        } else {
          var number;
          try {
            number = parseInt(command.substring(1), 10);
          } catch (ignore) {
            number = null;
          }
          func(number, next);
        }
      } else {
        console.warn('Ignoring bad command: ' + command);
        DCDriver.execute(commands, callback);
      }
    }
  }

  return DCDriver;
});