Step by step guide to create Android native games in HTML5 with Cocoon.io and without Android Studio

As you may know, I used Cocoon.io cloud services to convert my Ladderz HTML5 game into a native Android game.

I made the port in less than five minutes without installing any software or SDK by compiling it directly on the cloud thanks to Cocoon.io which provides all the tools and services to build awesome native HTML5 apps and games with a simple workflow and all the power of Cordova.

Now it’s time to write a step by step guide about this process.

1 – Obfuscate your code

This is very important. Be aware your javascript is not converted into “something else”, it’s just executed into a wrapper which acts like a virtual machine inside your app. So your code will remain exactly as you made it, and although there is no “view source code” in your game, you should obfuscate it. I highly recommend Jscramber, but the free online JavaScript Obfuscator Tool has some interesting features too.

2 – Create your Cocoon.io account

Go to Cocoon.io, and choose your plan. I am using the free plan which allows to completely manage up to two projects simultaneously with plugins, with a 50MB max project size, which can be raised to 250MB – with 10 projects simultaneously – for as low as $8/month, which is the plan I recommend to start with.

3 – Include cordova.js file

Go to the official GitHub repository and grab the latest version. Then include it in your project, making your index.html page look something like this:

This will allow you to use Cordova specific features, like…

4 – Add a deviceready event to start the game

Unlike old CocoonJS plugins, Cocoon Canvas+ plugins need to wait for Cordova deviceready event to start working. This event fires when Cordova is fully loaded, so your game will be executed this way:

Now you are ready to make your game be processed by Cocoon.io

5 – Zip your HTML5 game, THE RIGHT WAY

Your project won’t work if you zip your project with don’t use the Windows compression, use WinRAR instead, just create a Zip file.

If you have a Mac, you can use your default macOS zip utility.

6 – Download Java JDK

You will need it to create your keystores, required by Cocoon.io to compile your game. You can download it from this page.

7 – Create your keystores

You are going to use keytool to generate your release or debug keystore.

Execute the command prompt as administrator, move into your bin directory into your Java/jdk directory then write

keytool -genkey -v -keystore my-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000

for your release keystore, or

keytool -genkey -v -keystore debug.keystore -storepass android -alias androiddebugkey -keypass android -keyalg RSA -keysize 2048 -validity 10000

for your debug keystore.

8 – Compile signing section

At this time you are readyto upload the keystore along with its passwords

Now, you can compile your Android native app, directly on Cocoon cloud

  • disqusUser911

    Is this service free? Can I build more than two games without paying?

    • Emanuele Feronato

      it’s free as long as you have a maximum of two projects AT THE SAME TIME

      • disqusUser911

        Sorry, I don’t undestand it, what happens if I delete one project? Application still works? If yes, what are benefits of having more than two projects?

        • Emanuele Feronato

          exported applications will still work, but if you delete a project and – let’s say – want to publish an update, you will have to re-create the project from scratch, deleting another one (if you currently have two projects) to make room for it.

          • disqusUser911

            Thank you.