gistfile1.txt

object Character
  
  object Statistics
    attribute accessor character, type: Float, default: 1.0
  
  object PrimaryStatistics < Statistics
    attribute accessor strength    , type: Float, default: 1.0
    attribute accessor perception  , type: Float, default: 1.0
    attribute accessor endurance   , type: Float, default: 1.0
    attribute accessor charisma    , type: Float, default: 1.0
    attribute accessor intelligence, type: Float, default: 1.0
    attribute accessor agility     , type: Float, default: 1.0
    attribute accessor luck        , type: Float, default: 1.0
  
  object DerivedStatistics < Statistics
    attribute accessor hit_points, default: -> { 95 + (character.endurance * 20) }
    attribute reader carry_weight, default: -> { 150 + (character.strength * 10) }
    attribute reader melee_damage, default: -> { 95 + (character.strength / 2) }
    attribute reader reload_speed, default: -> { character.agility < 5 ? character.agility / 10 : 0.5 }
    
    alias hit_points as hp
  
  attribute accessor name, type: String, default: 'Player'
  attribute reader primary_statistics, type: PrimaryStatistics, default: -> { PrimaryStatistics.new }
  attribute reader derived_statistics, type: DerivedStatistics, default: -> { DerivedStatistics.new }
  
  delegate strength, perception, endurance, charisma, intelligence, agility, luck to primary_statistics
  delegate hit_points, hp, carry_weight, melee_damage, reload_speed to derived_statistics
  
  method attack(character <Character>)
    force = strength * luck.random_between(0)
    character.attacked_by( character: self, force: force )
  
  method attacked_by(character <Character>, force <Float>)
    hp -= force * luck.random_between(luck/2)