cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   sunnystormy
   Member

   Hey, I love using Ruby btw!

   I'm trying to figure out the Ruby for scene changes using Shinycocos.

   The code from the Monocle Studios tutorial is (in summary):

   -(void)startGame: (id)sender {
   GameScene * gs = [GameScene node];
   [[Director sharedDirector] replaceScene:gs];
   }

   The code I have so far is (Using template):

   class DemoScene < Cocos2D::Scene
   include Cocos2D
   
   def initialize
   @sprite = Sprite.new("menu.png")
   @sprite.position = [240, 160]
   
   @numSprite = Sprite.new("fps_images.png")
   @numSprite.position = [240, 100]
   
   @label = Label.new("I wrote this in RUBY! Mwahahahaha!", "Arial", 20)
   @label.position = [240, 200]
   
   @menu = MenuItemImage.new(:normal => "textup.png", :selected => "textdown.png")
   
   @listMenu = Menu.new(@menu)
   
   add_child @sprite
   add_child @numSprite
   add_child @label
   add_child @listMenu
   
   # Director.add_touch_handler(self)
   # end
   
   # def touches_ended(touches)
   #// move the sprite to the touched part, with a "Move To"
   # @sprite.run_action Actions::MoveTo.new(1.0, Director.convert_to_gl(touches.first[:location]))
   # end
   
   end
   end
   
   class FollowScene < Cocos2D::Scene
   include Cocos2D
   def initialize
   @gsSprite = Sprite.new("game.png")
   @gsSprite.position = [240, 160]
   
   add_child @gsSprite
   end
   end
   
   Cocos2D::Director.set_orientation Cocos2D::Director::ORIENTATION_LANDSCAPE_RIGHT
   Cocos2D::Director.run_scene DemoScene.new

   So what I'd like to do is have the @menu item be clicked upon and then go to "FollowScene". I'm not new to Ruby, but I am new to Cocos2D. I love the whole scene/layer approach and am very excited to learn as much as possible!

   Thanks for your help in advance!

   -SS

   Posted 1 year ago #
2. 

   rolando
   Moderator

   Hi @sunnystormy

   Glad to see you're trying ShinyCocos :-)
   First, I edited your post: use backticks (`) to format your code.

   Now to the question. Internally, ShinyCocos creates a proxy for your menu items and will call the "item_action" method when a specific item is pressed. So you have two approaches: you can either subclass each menu item, or use the singleton class. For small menus, I prefer the latter. Here's how I would do it:

   item1 = MenuItemImage.new(:normal => "textup.png", :selected => "textdown.png")
   class << item1 # open the singleton class
     def item_action
       Director.replace_scene FollowScene.new
     end
   end
   @listMenu = Menu.new(item1)

   If you're not very familiar with ruby, you can learn more about the singleton class here:

   http://ola-bini.blogspot.com/2006/09/ruby-singleton-class.html
   http://www.contextualdevelopment.com/articles/2008/ruby-singleton

   Finally, you can check the latest version of ShinyCocos, where I fixed some bugs and added some classes, like MenuItemLabel.
   And as a teaser, here's an early build of a game built entirely using ShinyCocos:

   Get the Flash Video

   hth,
   rolando.-

   Posted 1 year ago #

RSS feed for this topic

Reply

You must log in to post.