The Level Editor has been build with WPF, so it runs only on Windows.
To build the Level Editor, the simplest way is to execute the Build.bat script in the root folder.
You can also open the solution in Visual Studio 2015 Community Edition, available for free, and build it.
Then you can either run it from Visual Studio, or execute bin/Release/LevelEditor.exe
The folder [root]/Documentation contains documentation explaining a bit more how to use the Level Editor.
Editor project files
We included sample project files in the folder SampleProject/LevelEditorSettings
Open the file SampleProject.settings it in the editor via the menu File/Load Project.
You should see some components being loaded in the left-hand side panel Components, as well as a few Game Board Elements on the right-hand side panel.
Then you can load the sample level file SampleLevel.bytes located in the folder SampleProject/Assets/Levels via the menu File/Open
Once loaded, the first block of the level should be displayed automatically. The level file contains two blocks, you can browse them using the drop-down selector above the editor workspace.
Unity 3D project
This folder also contains a Unity project showing how to import level files within Unity 3D.
Please refer to the readme file in this folder for more information.
The editor does not have undo/redo feature.
For now we implemented an auto-backup feature to avoid too much lose in case of crash.