Class: Etsm::StateMachine

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(owner) ⇒ StateMachine

Returns a new instance of StateMachine.



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# File 'lib/etsm.rb', line 43

def initialize(owner)
    @owner = owner
    @current = nil
    @in_transition = false
end

Instance Attribute Details

#current ⇒ Object (readonly)

Returns the value of attribute current.



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# File 'lib/etsm.rb', line 40

def current
  @current
end

#in_transition ⇒ Object (readonly)

Returns the value of attribute in_transition.



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# File 'lib/etsm.rb', line 41

def in_transition
  @in_transition
end

#owner ⇒ Object (readonly)

Returns the value of attribute owner.



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# File 'lib/etsm.rb', line 39

def owner
  @owner
end

Instance Method Details

#IsIn(state) ⇒ Object 



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# File 'lib/etsm.rb', line 70

def IsIn(state)
    return state == @current
end

#Transition(state) ⇒ Object 



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# File 'lib/etsm.rb', line 49

def Transition(state)
    if @in_transition == true
        return false
    end

    @in_transition = true

    if @current != nil and @current.exit != nil
        @current.exit.call
    end

    @current = state

    if @current != nil and @current.enter != nil
        @current.enter.call
    end

    @in_transition = false
    return true
end