Comments on: 2D Scrolling Game with Cocos2D TileMap with Zoom!

By: Eric

Eric — Thu, 17 Jun 2010 21:17:45 +0000

There is certainly a way to do this, but I don’t have an answer as there are many different ways to approach this. Just apply forces to approach a pre-set list of points.

By: umer sufyan

umer sufyan — Mon, 24 May 2010 17:38:59 +0000

Thanks for this interesting information actually i m working on a game and i want to know whether there is a way to give a pre specified path to a moving body in box2d so that the obstacle (ball) should move only in that way any sample code or hints how it can be achieved.

By: Eric

Eric — Mon, 26 Apr 2010 19:46:50 +0000

Thanks, I’m glad this stuff helped you out some.

If I was going to make an RPG, it depends on how the game is structured. If the different locations in the game have different interactions (castle vs forest) that require different behavior code, then split up the Layers. If all that is changed is the visuals, then use the same Layer and load up different images based on the location.

Sorry for the delay in getting back to you, if you post again I’ll be on it quicker.

By: Michael

Michael — Sat, 17 Apr 2010 14:25:45 +0000

Eric – Regardless of the changes to the api, your explanations have been extremely helpful in my effort to get off the ground with cocos2d – thanks. I have a really basic noob-level question… if you were to construct an RPG using the premises outlined in your code, would you create one single game layer, regardless of how many scenes are in the game and just remove/add child objects to the layer when the scene changes? Or would you create a game layer specific to each scene (e.g. GameLayer_Castle, GameLayer_Forest, etc)? I’m assuming it’s the former, but I want to make sure I understand correctly. Thanks again for your helpful examples and explanations.

By: Eric

Eric — Wed, 07 Apr 2010 22:30:46 +0000

Sorry I realized this is old code before cocos2d made a lot of changes (like adding CC prefix). I don’t have a zip for this, but I will eventually put together some tutorials using cocos2d 1.0 that people will be able to download.

By: apaella

apaella — Tue, 06 Apr 2010 13:54:30 +0000

It is possibile to have a zip of this example? I’m having troubles setting up a simple working project with cocos2d.

Tkz a lot!

By: Eric

Eric — Mon, 15 Mar 2010 21:35:00 +0000

This works in landscape, that is actually the same as the game that was running this code.

centerPoint refers to the center of the iPhone screen (240, 180). If you wanted it portrait you’d do (180, 240). Easy!

By: Richard

Richard — Mon, 15 Mar 2010 16:10:12 +0000

Hi Eric,

Some quick questions for you, does the ‘centerPoint’ variable refer to the centre of the iphone screen or the centre tile of the map itself?

I’m running my game in Landscape mode, does that also affect things?

By: Daniel

Daniel — Sun, 07 Mar 2010 21:37:46 +0000

Thanks so much for the quick reply
That did the trick.

By: Eric

Eric — Sun, 07 Mar 2010 20:04:03 +0000

In your singleton class header file, instead of importing “GameLayer.h” use the @class GameLayer so you can store a pointer to it, and then in your single class .m file go ahead and import “GameLayer.h”.

That will fix the errors. In case that isn’t clear, just google how to use the @class statement.