Simple_game.rb

class Game
  def initialize
    @board = Board.new 100,100
    add_objects
  end

  def add_objects
    #add objects to board
    @board.add Movable.new 1,2
    @board.add Movable.new 1,3
    @board.add Imovable.new 2,2
    @board.add Mob.new 3,4
    @hero = Hero.new
    @board.add @hero
  end

  # called by the engine
  def move x_move, y_move
    @hero.x += x_move
    @hero.y += y_move
    display @board
  end

  # send to the engine
  def display @board

  end
end

class Board
  def initialize x, y
    @max_x, @max_y = x,y
    @representation = [][]
  end

  def add addable
    @representation[addable.x][addable.y] = addable
  end
end


class Entity
  def initialize x,y
    @x, @y = x,y
  end
end

class Hero < Entity
end

class Mob < Entity
end

class Immovable < Entity
end

class Movable < Entity
end