Fixed File Location

I decided to move the CelestialBody class to the celestialBody folder,
which I created. I figured the name would make more sense.
Added Planet Class

The Planet class holds data for a planet. I ended up removing a lot of
code from the CelestialBody class and transferring it to the Planet
class because it had more to do with planets than celestial bodies in
general.
Created Star and Orbit Classes

The Star class holds data for a star, and the Orbit class holds
parameters for an orbit. Plain and simple.
Added Code For Orbit

The code I added will calculate a circular orbit around an Entity. My
initial intention was to have it calculate an elliptical orbit, but it
requires calculus, which I have not yet learned. I will try to write
code for elliptical orbits, but it may take time.
Quick Change

The Longitude of Ascending Node wasn't being taken into account.
Another Quick Change

I realized a minute after the previous change that some of the numbers
were wrong.
Added Black Holes

BlackHoles are CelestialBody objects that are designed to be inescapable
if an Entity gets too close. I also added a bug fix.
Fixed Ship Sizes

The sizes of Ship objects were too big. I made a number change to fix
this.
Fixed Light Speed Limitation

With this change, Entity objects will no longer be able to reach the
exact speed of light.
Changed Viewer To Distinguish Entity Types

The Tester class will draw black holes as being pitch black, and may or
may not draw atmospheres for planets.
Orbit Class Changes

I've been working on improving the Orbit class, and have made it work
much better. But, it still needs some work.
More Orbit Class Changes and a Bug Fix

I fixed a problem with the inclination and also fixed a bug with
gravitation. I also fixed a very similar piece of code in the same
class.
Created CelestialBodyArrangement Class

This code stores a list of CelestialBody objects for map making.
Revert "Created CelestialBodyArrangement Class"

This reverts commit 349926a92e1fe5cd8f37bc9ac189bac6935e6b38.
Created Map Generator

It is a work in progress, but the idea behind it is that it can be used
to create environments for the game to be played in. I also made a bug
fix in the Entity class.
Unsaved Change

This goes with the previous commit.
Added To MapGenerator

I finished up the Solar System map for the MapGenerator class. I only
added Earth's moon because there's a lot of moons, and I can always add
them later. I also made a change to drag because it turns out that drag
is based on density, not pressure.
Another Unsaved Change

I can't believe I forgot the press the save button again!
Added Desired Maps To List

I came up with a couple of maps that I want to exist in the game.
They're listed in the MapGenerator class, even though they do not yet
have a full implementation, which I will commit when I write it.
Implemented New Maps

I added the Black Hole and Binary maps to the game. They may require
tweaking in the future.