Based on the 2D Beginner Project look, these demos now have the colorful
GDQuest "theme" to them.
This had the effect of removing the circle and triangle/ship sprites as
everything is drawn in Godot directly.
Made booleans start with a prefix, e.g. is_open
Added a leading underscore to two virtual functions
Added VIRTUAL comment above several virtual functions
Renamed accel -> acceleration in a function
They were looking kind of floaty, moving not like spaceships but like
they were on ice. Now they travel along their orientation, towards
where the player is/will be.
Add quickstart guide and quickstart demo
Authored by Razoric and edited by Nathan and Johnny.
The purpose of the guide is simply to give an overview of what the
behaviors are there for, and a quick look at how to actually make use
of them in the basis of this toolkit, with some explanatory comments.
The actual user's manual will be built out of the API reference.
