card_deck.png

gistfile1.rb

#!/usr/bin/env ruby
require 'ray'
require 'forwardable'

class Card
  extend Forwardable
  def_delegators :@sprite, :pos, :x, :y

  attr_reader :rank, :suit, :sprite

  def initialize(rank, suit)
    @rank   = rank
    @suit   = suit
    @sprite = Ray::Sprite.new('card_deck.png')

    @sprite.sheet_size = [13, 5]
    @sprite.sheet_pos = [rank, suit]
  end

  def pick_up(mouse_pos)
    @offset = @sprite.pos - mouse_pos
  end

  def drag(mouse_pos)    
    @sprite.pos = mouse_pos + @offset
  end

  def received_click?(mouse_pos)
    @sprite.to_rect.contain?(mouse_pos)
  end

end

class Deck
  attr_reader :cards

  def initialize
    @cards = []
    suits  = 0..13
    ranks  = 0..4

    suits.each do |rank|
      ranks.each { |suit| @cards << Card.new(rank, suit) }
    end

  end

  def size
    @cards.size
  end

end

class PatienceScene < Ray::Scene

  def setup
    @background_color = Ray::Color.new(31, 95, 25)
    @deck = Deck.new
    @deck.cards.each { |c| c.sprite.pos = [0, 0] }
  end

  def register
    add_hook :quit, method(:exit!)
    add_hook :key_press, key(:q), method(:exit!)

    always do
      on :mouse_press do
        @clicked_card = @deck.cards.find { |card| card.received_click?(mouse_pos) }
        @clicked_card.pick_up(mouse_pos) if @clicked_card 
      end

      on :mouse_release do
        @clicked_card = nil
      end

      @clicked_card.drag(mouse_pos) if @clicked_card
    end
  end

  def render(win)
    win.clear(@background_color)
    win.draw(@deck.cards[1].sprite)
  end

end

class Game < Ray::Game

  def initialize
    super("Patience", :size => [800, 600])
    PatienceScene.bind(self)

    scenes << :patience_scene
  end

end

Game.new.run