Module: Motel

Defined in:
lib/motel/exceptions.rb,
lib/motel/common.rb,
lib/motel/runner.rb,
lib/motel/location.rb,
lib/motel/callbacks.rb,
lib/motel/simrpc_adapter.rb,
lib/motel/movement_strategy.rb,
lib/motel/movement_strategies/linear.rb,
lib/motel/movement_strategies/stopped.rb,
lib/motel/movement_strategies/elliptical.rb

Overview

Exceptions used in the MOTEL project

Copyright © 2010 Mohammed Morsi <[email protected]> Licensed under the AGPLv3+ www.gnu.org/licenses/agpl.txt

Defined Under Namespace

Modules: Callbacks, MovementStrategies Classes: Client, InvalidMovementStrategy, Location, Logger, MovementStrategy, Runner, Server

Instance Method Summary collapse

Instance Method Details

#gen_uuid ⇒ Object

generate a random id



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# File 'lib/motel/common.rb', line 44

def gen_uuid
  ["%02x"*4, "%02x"*2, "%02x"*2, "%02x"*2, "%02x"*6].join("-") %
      Array.new(16) {|x| rand(0xff) }
end

#normalize(x, y, z) ⇒ Object

normalize a vector if not normal already, eg divide each component x,y,z by the vector length and return them



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# File 'lib/motel/common.rb', line 52

def normalize(x,y,z)
  return x,y,z if x.nil? || y.nil? || z.nil?

  l = Math.sqrt(x**2 + y**2 + z**2)
  if l != 1
    x /= l
    y /= l
    z /= l
  end
  return x,y,z
end

#orthogonal?(x1, y1, z1, x2, y2, z2) ⇒ Boolean

determine if two vectors are orthogonal

Returns:

  • (Boolean) 


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# File 'lib/motel/common.rb', line 65

def orthogonal?(x1,y1,z1, x2,y2,z2)
  return false if x1.nil? || y1.nil? || z1.nil? || x2.nil? || y2.nil? || z2.nil?
  return (x1 * x2 + y1 * y2 + z1 * z2).abs == 0
end