Class: FB::Status

Inherits:
Object
  • Object
show all
Defined in:
lib/arduino/status.rb

Defined Under Namespace

Classes: Info

Constant Summary collapse

DEFAULT_INFO =

Map of informational status and default values for status within Arduino.

{X: 0, Y: 0, Z: 0, S: 10, Q: 0,  T: 0,  C: '', P: 0,  V: 0,
 W: 0, L: 0, E: 0, M: 0, XA: 0, XB: 0, YA: 0, YB: 0, ZA: 0,
ZB: 0,YR: 0, R: 0, BUSY: 1, LAST: 'none'}

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Status

Returns a new instance of Status.



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# File 'lib/arduino/status.rb', line 9

def initialize
  @changes = EM::Channel.new
  @info    = Info.new(*DEFAULT_INFO.values)
end

Instance Method Details

#[](value) ⇒ Object 



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# File 'lib/arduino/status.rb', line 33

def [](value)
  @info[value.upcase.to_sym]
end

#[]=(register, value) ⇒ Object 



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# File 'lib/arduino/status.rb', line 22

def []=(register, value)
  transaction do
    register = register.upcase.to_sym
    if @info.members.include?(register)
      @info[register] = value
    else
      bot.log "Ignoring attempt to set unknown status value: #{register}"
    end
  end
end

#gcode_update(gcode) ⇒ Object 



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# File 'lib/arduino/status.rb', line 37

def gcode_update(gcode)
  transaction do
    gcode.params.each { |p| @info.send("#{p.head}=", p.tail) }
  end
end

#onchange ⇒ Object 



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# File 'lib/arduino/status.rb', line 43

def onchange
  @changes.subscribe { |diff| yield(diff) }
end

#ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/arduino/status.rb', line 47

def ready?
  self[:BUSY] == 0
end

#transaction {|@info| ... } ⇒ Object

Yields:

  • (@info) 


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# File 'lib/arduino/status.rb', line 14

def transaction(&blk)
  old = @info.to_h
  yield(@info)
  # Broadcast a diff between the old status and new status
  diff = (@info.to_h.to_a - old.to_a).to_h
  @changes << diff unless diff.empty?
end