ТЕМА: "Жила-была таверна" и другие игры

#shift_z 10

<template>
template_code=MonoDispenser
source_event_id=8
</template>

class Object
 
  def to_b
    return true if self
    return false
  end
  alias :to_boolean :to_b
  alias :to_bool    :to_b
 
  def to_lazy_bool
    return false if [false, nil, 0, 0.0, '0', 'false', 'no', 'off', 'n'].include?(self)
    return true
  end
 
  def callable?
    respond_to? :call
  end
 
end
 
module Attr_processor
 
  def attr_processor(attr_name, ops={}, &body)
 
    on_change=ops[:on_change]
    attr_reader(attr_name)
    define_method attr_name.to_s+'=' do |val|
 
      var_name='@'+attr_name.to_s
      var_content=instance_variable_get(var_name)
      return var_content if var_content.eql?(val)
 
      processed=body.call(val)
      return var_content if processed.eql?(val)
 
      instance_variable_set(var_name, processed)
 
      unless on_change.nil?
        if on_change.is_a?(Symbol)
          send(on_change)
        elsif on_change.callable?
          on_change.call
        end
      end
 
    end
 
  end
 
  def attr_bool(attr_name, opts={})
    attr_processor(attr_name, opts) { |val| val.to_b }
  end
 
  def attr_lazy_bool(attr_name, opts={})
    attr_processor(attr_name, opts) { |val| val.to_lazy_bool }
  end
 
  def attr_int(attr_name, opts={})
    attr_processor(attr_name, opts) { |val| val.to_i }
  end
 
  def attr_str(attr_name, opts={})
    attr_processor(attr_name, opts) { |val| val.to_s }
  end
 
  def attr_sym(attr_name, opts={})
    attr_processor(attr_name, opts) { |val| val.to_sym }
  end
 
end
 

class EventTemplate_Dispenser < EventTemplate
  extend Attr_processor
 
  attr_lazy_bool :preview_offer
  attr_int :source_map_id, on_change: :reset_prototype
  attr_int :source_event_id, on_change: :reset_prototype
 
  def reset_prototype
    @prototype=nil
  end
 
end

String === 's' #=> true
/a/ === 'abra' #=> true