Class: AmbientOrb

Inherits:
Object
  • Object
show all
Defined in:
lib/ambient-orb.rb,
lib/ambient-orb/version.rb

Constant Summary collapse

SERIAL_PORT_BAUD_RATE =

These are fixed characteristics of the orb.

19200
SERIAL_PORT_DATA_BITS = 
8
SERIAL_PORT_STOP_BITS = 
1
SERIAL_PORT_PARITY = 
SerialPort::NONE
COLOR_RED =

Colors are specified as an integer from 0 to 36, inclusive. Common colors are assigned constants for convenience.

0
COLOR_ORANGE = 
3
COLOR_YELLOW = 
6
COLOR_GREEN = 
12
COLOR_BLUE = 
24
COLOR_PURPLE = 
27
ANIMATION_NONE =

Animation is specified as an integer from 0 to 9, inclusive.

0
ANIMATION_VERY_SLOW = 
1
ANIMATION_SLOW = 
2
ANIMATION_MEDIUM_SLOW = 
3
ANIMATION_MEDIUM = 
4
ANIMATION_MEDIUM_FAST = 
5
ANIMATION_FAST = 
6
ANIMATION_VERY_FAST = 
7
ANIMATION_CRESCENDO = 
8
ANIMATION_HEARTBEAT = 
9
VERSION = 
'0.0.2'

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ AmbientOrb

Returns a new instance of AmbientOrb.



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# File 'lib/ambient-orb.rb', line 34

def initialize(options = {})
  @opts = options
end

Instance Method Details

#chip ⇒ Object 



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# File 'lib/ambient-orb.rb', line 52

def chip
  @chip ||= begin
    chip = @opts[:chip] || autodetect_chip

    unless chip
      raise ArgumentError, 'invalid chip'
    end

    logger.info("using chip #{chip}")

    chip
  end
end

#device ⇒ Object 



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# File 'lib/ambient-orb.rb', line 38

def device
  @device ||= begin
    dev = @opts[:device] || autodetect_device

    unless dev && File.exist?(dev) && File.stat(dev).chardev?
      raise ArgumentError, 'invalid device'
    end

    logger.info("selected device #{dev}")

    dev
  end
end

#logger ⇒ Object 



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# File 'lib/ambient-orb.rb', line 66

def logger
  @logger ||= begin
    @opts[:logger] || Logger.new(nil)
  end
end

#update(color, animation) ⇒ Object 



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# File 'lib/ambient-orb.rb', line 72

def update(color, animation)
  if (color < 0 || color > 36)
    raise ArgumentError, 'color must be between 0 and 36'
  end

  if (animation < 0 || animation > 9)
    raise ArgumentError, 'animation must be between 0 and 9'
  end

  logger.info("updating with color=#{color}, animation=#{animation}")

  color_ord     = (color + (37 * animation)) / 94 + 32
  animation_ord = (color + (37 * animation)) % 94 + 32

  send("~A#{color_ord.chr}#{animation_ord.chr}")
end