# Use this if you need a closest targeting mechanism.
#
module Targeting
  
  module Closest extend Trait
    
    # Returns the closest target of all targets in the fire arc.
    #
    # TODO fire arc
    #
    def acquire *targets
      closest = nil
      lowest_distance = nil
      
      targets.each do |target|
        distance = (target.position - self.position).length
        next if lowest_distance && distance > lowest_distance
        lowest_distance = distance
        closest = target
      end
      
      closest
    end
  end
  
end