Dear friends. This article is for all those interested in the development of Mods for SimplePlanes. Excuse me if my English is not very good, I accept corrections to improve your understanding.

Some interesting resources before you start
- Comment and write with Markdown Formatting test/explanations
- SimplePlanes Modding

Some interesting resources related to Aircraft XML Mod
- XML Properties
- XML Eternal tips

1. Installation

The installation of all the software can become complex if the versions and keys are not known to ensure a correct installation. Even functions like the creation of Mods for Android may not work correctly. Therefore, I recommend following the steps below and installing the indicated versions.

• Unity 5.3.6f1 - Download
• Visual Studio 2015 Community Edition - Download
• Java SE Development Kit 8u151 - Download
• Android SDK 3.0.1 - Download

---

Installation process

.
Unity 5.3.6f1 installation
- No problem was detected in the installation. Download first and install normally.

Visual Studio 2015 Community Edition
- No problem was detected in the installation. Download in second place and install normally.

Java SE Development Kit 8u151
- Download third and install the version for Windows x86 jdk-8u151-windows-i586.exe (later versions I can not ensure that work correctly).
- The Java version will install both JRE, as JDK, both may be necessary for the proper functioning of Unity (especially to generate the Mods for Android).

Android SDK 3.0.1
- Probably the most complicated program to install. Actually they are two programs.
- The file "android-studio-ide-171.4443003-windows.exe" or similar will be downloaded.
- When installing, it will install "Android Studio". This component can be installed in the default location, for example **C:/Program Files/Android**, but it can be any other.
- However, during the installation process, the "SDK" installation option appears. Here it is very important to indicate the correct installation path, which should be **C:/SDK**. The folder must be created if it does not exist.

---

Configuration of system environment variables

.
Now you have to fix the system environment variables. These are very important to ensure the proper functioning of JAVA and SDK, in order to create Mods for Android. (Believe me, when you make your Mods a lot of people will ask you for an Android version).

To access the environment variables of the system (if you use Windows) you must access Control Panel => System => Advanced System Configuration => Environment Variables

*Ilustrative image https://i.imgur.com/9FmcKBr.png

Check if you have created the following environment variables. If not, you will have to create them. Verify that the paths are correct. If you follow all the steps, they should be the same or very similar to the ones indicated here.

User variables

• Variable = android-sdk | Value = C:\SDK
• Variable = JAVAHOME | Value = C:\Program Files (x86)\Java\jre1.8.0151
• Variable = Path | Value = C:\Program Files (x86)\Java\jre1.8.0_151

System variables

• Variable = Path | Value = C:\Program Files (x86)\Java\jdk1.8.0_151

Note In some cases, a variable can be created with several values. It is not a problem, a new row will be added to the list of values of that variable.

---

Configuration of Unity variables

.
In order for the Unity software be able to create Mods for Android, one more step must be completed. You need to configure Unity variables. Take a look at the following image.

Open Unity and access the following menu Edit => Preferences => External Tools You will see a section that contains the SDK and JDK fields for android.

*Real installation (my installation) https://i.imgur.com/i0W4mFZ.png

Add the following values for the SDK and JDK paths

SDK path

• **C:/SDK**

JDK path

• **C:\Program Files (x86)\Java\jdk1.8.0_151**

After completing this step, it is recommended to save all changes, close all applications and restart the computer ... and congratulation's! Now you have everything installed. Now you can start creating your Mods.

---