Class: Ruck::EventClock

Inherits:
Object
  • Object
show all
Defined in:
lib/ruck/event_clock.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ EventClock

Returns a new instance of EventClock.



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# File 'lib/ruck/event_clock.rb', line 6

def initialize
  @now = 0
  @waiting = Hash.new { |hash, event| hash[event] = [] }
  @raised = []
end

Instance Attribute Details

#now ⇒ Object (readonly)

Returns the value of attribute now.



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# File 'lib/ruck/event_clock.rb', line 4

def now
  @now
end

Instance Method Details

#fast_forward(dt) ⇒ Object

fast-forward this clock by the given time delta



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# File 'lib/ruck/event_clock.rb', line 13

def fast_forward(dt)
  @now += dt
end

#next ⇒ Object 



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# File 'lib/ruck/event_clock.rb', line 26

def next
  [@raised.first, 0] if @raised.length > 0
end

#raise_all(event) ⇒ Object 



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# File 'lib/ruck/event_clock.rb', line 34

def raise_all(event)
  @raised += @waiting[event]
  @waiting[event].clear
end

#schedule(obj, event = nil) ⇒ Object 



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# File 'lib/ruck/event_clock.rb', line 17

def schedule(obj, event = nil)
  @waiting[event] << obj
end

#unschedule(obj) ⇒ Object 



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# File 'lib/ruck/event_clock.rb', line 21

def unschedule(obj)
  @waiting.each { |event, objs| objs.delete(obj) }
  @raised.delete(obj)
end

#unschedule_next ⇒ Object 



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# File 'lib/ruck/event_clock.rb', line 30

def unschedule_next
  [@raised.shift, 0] if @raised.length > 0
end