DCI experimentation

dci_experiment.rb

class AttacksController
  def create
    attacker = current_users.characters.find(params[:attacker_id])
    target   = Character.find_by_x_and_y(params[:x], params[:y])

    attack = CharacterAttacksAnotherCharacter.new(attacker, target)
    attack.execute!
  end
end



class CharacterAttacksAnotherCharacter
  attr_reader :attacker, :target

  def initialize(attacker, target)
    @attacker = attacker.extend(Attacker)
    @target   = target.extend(Target)
  end

  def execute!
    attacker.attack(target)
    self
  end
end



module Attacker
  def attack(target)
    damages = self.weapon.roll_damages_dice
    target.receive_damages(damages, self, weapon)
  end

  def reward_for_kill(target)
    self.experience += target.level * 10
  end
end



module Target
  def receive_damages(damages, attacker, weapon)
    remaining_damages = self.armor.block_damages(damages, weapon)
    self.health      -= remaining_damages

    self.die_from_attacker(attacker) if self.health < 1
  end

  def die_from_attacker(attacker)
    attacker.reward_for_kill(self)
  end
end