Class: Zyps::BreedAction

Inherits:
Action
  • Object
show all
Defined in:
lib/zyps/actions.rb

Constant Summary collapse

DEFAULT_DELAY = 
60

Instance Attribute Summary collapse

Attributes inherited from Action

#started

Instance Method Summary collapse

Methods inherited from Action

#copy, #start, #started?, #stop

Constructor Details

#initialize(environment, delay = DEFAULT_DELAY) ⇒ BreedAction

Returns a new instance of BreedAction.



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# File 'lib/zyps/actions.rb', line 233

def initialize(environment, delay = DEFAULT_DELAY)
  self.environment, self.delay = environment, delay
  @clock = Clock.new
  @time_since_last_action = 0
end

Instance Attribute Details

#delay ⇒ Object

Delay between actions.



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# File 'lib/zyps/actions.rb', line 232

def delay
  @delay
end

#environment ⇒ Object

Environment to place children into.



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# File 'lib/zyps/actions.rb', line 230

def environment
  @environment
end

Instance Method Details

#do(actor, targets) ⇒ Object 



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# File 'lib/zyps/actions.rb', line 238

def do(actor, targets)
  targets.each do |target|
    #Skip action if target is not a Creature.
    next unless target.is_a?(Creature)
    #Get time since last action, and skip if it hasn't been long enough.
    @time_since_last_action += @clock.elapsed_time
    return unless @time_since_last_action >= @delay
    #Create a child.
    child = Creature.new
    #Combine colors.
    child.color = actor.color + target.color
    #Combine behaviors EXCEPT those with BreedActions.
    behaviors = (actor.behaviors + target.behaviors).find_all do |behavior|
      ! behavior.actions.any?{|action| action.is_a?(BreedAction)}
    end
    behaviors.each {|behavior| child.behaviors << behavior.copy}
    #Location should equal actor's.
    child.location = actor.location.copy
    #Add parents' vectors to get child's vector.
    child.vector = actor.vector + target.vector
    #Child's size should be half the average size of the parents'.
    child.size = ((actor.size + target.size) / 2) / 2
    #Add child to environment.
    @environment.objects << child
    #Reset elapsed time.
    @time_since_last_action = 0
  end
end