I’ve been asked since then when I would come out with the tutorial.   I was finally able to get around to completing the source file, and I’ve added line by line (well pretty close) comments in plain english to make it easier to follow.

The above video utilizes the exact source code from this tutorial running in the iPhone simulator.

Following the suggestions of a friend of mine who is just starting to learn this I’ve used as few methods as possible, and made extensive use of autorelease objects to make the flow easier to follow for beginners.

The tutorial features:

• Loading/Placing Images
• Animation
• Touch Events
• Text
• Sound Effects
• Background Music
• Buttons
• Resetting The Game

Coming up next week I will be posting a more comprehensive tutorial, but I am posting the source code now.  If you look through this code and the comments you should be able to grasp what is going on, and I hope that the upcoming tutorial will fill in the gaps. Be sure to come back next week when the full tutorial is posted!

I recreated this from scratch using Sparrow Framework and Objective-C because in my findings it was easiest to follow for a beginner looking to create an action game.

Things could change a little as I haven’t really looked through it myself.. just quickly coded it and wrote line by line comments. If you open it up, and are wondering which files to look at to understand things go to the Game.h and Game.m files.. the app delegate files were created automatically with the Sparrow project and I didn’t comment those.

Update! I have modified the project to remove an error that occurred on some systems due to a recursive search being done in the project for already included files.  Please re-download if you encountered this problem.

You can download the source with music/sound effects here:
BalloonGameTutorial

Graphics are included so the example will run but are slightly different because I am using graphics similar to those in the video in my own game.

As far as licensing goes feel free to use this in your own apps, and if you do send me a message or post a comment about it, and I’ll mention it on this site. You may not use any portion of this project in your own tutorials, books, etc. (and definitely don’t submit it to a site buying tutorials.. you know who you are!) without permission.

Please be sure to check back next week when the entire tutorial is posted which will give you a much better idea of how to extend/use this source code and utilize the Sparrow Framework.

If you have any questions as to why I did something or have any suggestions for the tutorial then please post them below — it will help to make the final tutorial better.

Also, if you could share this post that would be great too and help motivate me to make more!

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.

Let’s face it.. getting app downloads is tough. There are over 200,000 apps out there, and it is very easy for an app to fade into obscurity.

Even free apps can suffer from this, you really have to get the word out there, and there are many different approaches.

One approach that has worked for one developer was to take their app, and release the source code. With so many people interested in iPhone development the app was able to go from 40 to about 1000 downloads in a day.

The app is SpaceBubble from Nick Vellios for which the iTunes link can be found here along with the source code.

The source code will be added to the Open Source iPhone App Store Apps listing.

[Source: Vellios.com]

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.

Welcome to the fourth iteration of this big list of open source iPhone apps.  For those that have seen similar listings on other sites using the exact wordings, and links below welcome to the source for the original list.

It can be tough to learn how to develop, especially when it comes to finding complete examples.  That’s why I put this list together.  Each of these apps has been in the app store, and all but one are in there right now.  So if you’re looking for an example of some real apps here they are.

Update: This list now actually contains 37 apps thanks to the additions of Tweetee and Spacebubble.  Also added was a link to a Github project created for those looking to download the wikihow source code.

Note to potential content thieves: I was amazed by the number of human edited sites that flat out copied this list without any attribution of any type (even the descriptions).. it seems so many copied that the original page on ManiacDev.Com (where I hope you’re reading this..) vanished from Google which wasn’t cool.  While this may just be a list it takes me hours each time I post it to put it together, find new apps, and check the links.

If you feel you have to copy this list in an effort to make a quick buck (I know the lack of money makes people do stupid things) I’ve got a better alternative for you… why not write a post about your favorite apps from this list, and link back to this page?  I’ll even give you a link back in the form of a trackback.  We’ll both get more visitors.

The Apps

Here is the list in alphabetical order:

1. ABC 123 – Sequence memorization game. Utilizes Cocos2D. (itunes link) (source code)

*2. Artifice – Strategy game where you try to get to the other side by moving boxes out of the way. Utilizes Cocos2D. (itunes link) (source code)

3. Colloquy – Conversion of the most popular Mac IRC client to the iPhone. (itunes link) (source code)

*4. Countitout - A generic counting app. (itunes link) (source code)

5. Diceshaker - Dice rolling simulator designed for role-playing game enthusiasts. (itunes link) (source code)

6. Doom Classic - Classic 3D first person shooter. (itunes link) (source code) (build instructions)

*7. Fosdem - Calendar app for the Fosdem open source conference. (itunes link) (source code)

8. Freshbooks – App that enables usage of Freshbooks web invoicing software from your iPhone. (itunes link) (source code)

9. Gorillas – Classic Worms/iShoot turn based shooter type game converted to iPhone from basic. Utilizes Cocos2D. (itunes link) (source code). 1249ouFh83XA

*10. Go Go Lotto – Open source lotto ticket generator. (itunes link) (source code)

11. Last.fm – Software that enables usage of the Last.fm platform for personal radio stations. (itunes link) (source code)

12. Mobilesynth - A monophonic synthesizer designed for live performance. (itunes link) (source code)

13. Molecules – Allows you to view 3D models of molecules and manipulate them through touch. (itunes link) (source code)

14. Mover – Allows you to transfer stuff from one iPhone to another by “flicking” it to the other device. (itunes link) (source code)

15. Natsulion - A basic twitter client converted from mac. (itunes link) (source code)

16. NowPlaying – Allows you to check local theater listings, and check rotten tomato ratings. (itunes link) (source code)

17. Packlog – Backpack journal client. (itunes link) (source code)

*18. PlainNote - Simple Open Source Notepad. (itunes link) (source code)

19. PocketFlix – Find movies, and manage your Netflix information. (itunes link) (source code)

*20. NevoChess – A Xiangqi game. (itunes link) (source code)

21. reMail – E-mail client featuring ultra-fast search. Removed from app store, but source made available. (source code)

22. RobotFindsKitten – Port of a very silly “classic” ASCII game. (itunes link) (source code)

23. Sci-15 HPCalc – Calculator app based on classic scientific HP-Calculator. (itunes link) (source code)

*24. SpaceBubble – Space game featuring core graphics, and accelerometer usage. (itunes link) (source code)

*25. Star3Map – Augmented reality star and planet charting application. (itunes link) (source code)

26. Task Coach – Personal to-do list and task manager. (itunes link) (source code)

27. Tubestatus – London train schedule tracker. (itunes link) (source code)

28. Tweejump – Platform jumping game inspired by Icy Tower. Utilizes Cocos2D. (itunes link) (source code)

*29. Tweetee – Enhanced version of the Natsulion Twitter Client. (itunes link) (source code)

30. Tweetero – Basic twitter client with image uploading. (itunes link) (source code)

31. Twitterfon – Super-fast intuitive twitter client. (itunes link) (source code)

* 32. ViralFire – Unique game where you are a dodging blood cell. (itunes link) (source code)

* 33. Wikihow – A reader app for the popular how to wiki site. (itunes link) (source code)

* 34. Wolfenstein 3D Classic Platinum – If you haven’t heard of Wolfenstein post below so we can say a prayer for you. (itunes link) (source code)

35. WordPress – Client for managing WordPress blogs. Also has an iPad version. (itunes link) (source code)

36. YourRights – Pocket database containing a summary of your legal rights. (itunes link) (source code)

* 37. ZBar – A barcode reader. (itunes link) (source code)

Check them out if you are working on something similar or think they might have a feature you could use there’s no reason to re-invent the wheel.  Always make sure you understand the licenses though many are GPL and require that you open source your app.

Please Share And Comment

Please click here to share this list with others by tweeting about it.

If you’ve found or have released another open source iPhone or iPad app that has been in the app store then please mention it in the comments.

If you see this list copied someplace else please mention it in the comments.

Or if you have any other thoughts please mention them below, thanks.

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.

If you haven’t seen it yet, it’s a very concise implementation of the classic game, and also a very basic implementation, but I noticed something pretty cool while playing with it, and that was the particle based explosions. So what I did was spend about 3 minutes playing with the code, and I came up with the demo shown here in this video.

To create these explosions a Particle Emitter created by the guys at 71 Squared (makers of some great iPhone game development tutorials) along with a custom texture class. 

To create the explosions a Particle Emitter is first created and initialized using the initParticleWithEmitter class, where you can specify parameters for the color, duration, size, number of particles, and gravity of the resulting display of particles (an example of this is in the EaglView.m file).

To display the particles a time index is created, and the update: method is executed along with the renderparticles method.  I won’t go into the details here as the ParticleEmitter classes are extremely well documented.

Download the source code for the explosion generator here:
>>> Explosion Generator Source <<<

Have fun with the code.

©2010 iPhone iOS 4 iPad SDK Development Tutorials, Programming Tips, News. All Rights Reserved.