apollo/data/plugins/combat/combat_state.rb

def get_combat_state(mob)
  mob.is_a?(Player) ? type = :player : type = :npc

  unless MOB_COMBAT_STATE_CACHE[type].has_key? mob.index
    MOB_COMBAT_STATE_CACHE[type][mob.index] = CombatState.new(mob)
  end

  MOB_COMBAT_STATE_CACHE[type][mob.index]
end

private

class CombatState
  attr_accessor :state
  attr_reader :queued_attacks, :supports_weapon

  def initialize(mob, supports_weapon = true)
    @mob             = mob
    @supports_weapon = supports_weapon
    reset
  end

  def reset
    @state          = :idle
    @target         = nil
    @next_attack    = nil
    @queued_attacks = []
    @mob.reset_interacting_mob
  end

  def target
    @target
  end

  def target=(target)
    @mob.reset_interacting_mob
    @mob.interacting_mob = target
    @target              = target
  end

  def queue_attack(attack)
    @queued_attacks.push(attack)
  end

  def next_attack(peek = false)
    if @queued_attacks.size > 0
      peek ? @queued_attacks.first : @queued_attacks.pop
    else
      weapon = EquipmentUtil.equipped_weapon @mob

      if @mob.using_special and weapon.special_attack?
        weapon.special_attack
      else
        weapon_class = weapon.weapon_class
        combat_style = weapon_class.style_at @mob.combat_style
        
        weapon_class.attack combat_style
      end
    end
  end
end

MOB_COMBAT_STATE_CACHE = {
  :player => {},
  :npc    => {}
}