App prototyping with Keynote

Prototyping is a critical developing phase. During prototyping you may find design problems on your app that, if not detected early, would probably make you and your team waste an important amount of time.

There are a lot of techniques and tools to create prototypes. You can prototype on paper while brainstorming and use sophisticated tools later to create visually appealing prototypes.

However, I decided to use Keynote for prototyping my last client app Aduho Mirror. In today’s post I would like to share my reasons and experience.

App prototyping with Keynote

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The mobile cross-platform development headache

The lasts weeks I have been trying and playing with different frameworks, methodologies and alternatives to mobile cross-platform development. In today’s post I would like to share with you my conclusions and… headaches.

So, you know, by definition cross-platform development is never an easy issue. Every platform is very different from each other just because it needs to differentiate from the competitors. So you, as a cross-platform developer, have to deal with it. Period.

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Developing tools for creating a game

Some months ago I wrote an article on this blog titled “Tools for creating a game“. On that article I talked about the tools I used to develop my first iOS game New Sokoban. The message of that article was summarized with this mental note:

Mental note: always use existing tools. If there is a tool that barely fits your needs use it. You will be amazed about how quickly you adapt yourself to that tool and how your productivity increases.

However, currently I’m working on a new game that needed a very specific and game dependent developing tool. So, unfortunately, I spent about two weeks developing, testing and refining a development tool for my new game. In today’s article I’m going to share the experience.

Xcode icon

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Using sprite sheets in Cocos2d and Tiled (part 2)

Today’s post is the second part of last week post about using sprite sheets with cocos2d and Tiled. In the previous post we saw what is a sprite sheet, how to to create it from a collection of individual sprites using Texture Packer and how to code it using cocos2d for iPhone. Today I’m going to explain how I used sprite sheets as source libraries in Tiled to create and edit New Sokoban puzzles. In this previous post I partially covered this topic. However, today I’m going to enter in more detail into some technical issues.

As we saw in the first part of this article, sprite sheets are mainly used to drastically improve our games performance in terms of both memory and CPU usage. We basically need to group our original individual sprites and then have some way to refer to them in our game code.

Vegeta Sprite Sheet

Vegeta Sprite Sheet

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Using sprite sheets in Cocos2d and Tiled (part 1)

In today’s post I’m going to enter in more detail in a very useful topic for game development: Sprite Sheets. I introduced this topic in two of my previous post, but did not enter in detail. I received some feedback pointing out that there is some interest on sprite sheets and how to use them in conjunction with Texture Packer and Cocos2d. In addition, I’m also going to explain how to use sprite sheets as your source library for creating maps on Tiled. This will probably be a large post, so I’m going to split it into two parts.

Super Mario World Sprite Sheet

Super Mario World Sprite Sheet

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Game Center integration – leaderboards and achievements

Today’s post is going to be a pragmatic and technical one. I’m going to make a brief introduction to Game Center integration for your games. I decided to talk about this topic today because I found some things that I was not expecting about Game Center. So, I going to share my experience.

As you may know, Game Center is Apple’s solution to social gaming experience. It’s not the best social gaming experience, but its acceptance has been very high among iOS users and it’s quite easy to implement. That’s why I finally decided to only support Game Center, forgetting about Open Feint or Plus+.

game center icon

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Tools for creating a game

In today’s post I would like to review the tools I used to perform the different types of tasks involved in the development of New Sokoban, my first iOS game.

Development

Xcode

When saying “development” I mean those tools that help me generating the code of the game. So, the first one is Xcode, the main development IDE for creating any kind of app for any of the Apple devices and computers. Xcode comes with the Mac OS. I have not used any other IDE on Mac OS, so I can’t compare. But I have worked on Windows and Linux using Visual Studio for C++ and Netbeans for Java, among others.

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“Creatinology”

Creatinology is a mental illness that makes people’s brain creativity skills constantly fight to their brain technology skills“. Of course, this doesn’t exist (yet) but if so, I would have it for sure. I have been a lot of years working in a technology environment where people only were interested on if “it works or not”.

So, in some sense, my professional education is technology predominant. When my brain tries to think about work (even if the work is making games) it is difficult for me to avoid trying to solve the technological problems first in my mind. “Is 3D or 2D?”, “Needs animations?”, “Particle effects? If so, how would I implement it?”. This are the kind of questions or thoughts that I still need to train my brain to avoid when thinking about making games or, in general, any kind of app.

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