Game template for godot-mapper plugin

The rolling ball type of game is perfect for beginners to experiment with.
Unfortunately, even a simple game like that requires quite many directories.
Set Generic game path to the project mapping directory in TrenchBroom.

Project configuration can be changed in addons/mapper.gd games file.

Project directories

• addons is a directory for modular code (plugins, tools).
• application should contain application files and global settings.
• characters contains special maps with animated layers for prototyping.
• interfaces should contain all kinds of buttons, progress bars, etc...
• mapping is the main directory for game levels with map resources.
• sources should contain all game logic and the game state.