The mainbody of the game is done, could generate some pretty interesting simulations.

What I did tonight:

- Implemented the scale screen system

- Tracking system for the star

- Boundary of the universe and bouncing of the stars

- Introduced year and shrinking universe

- Some initial trials on the story system, the tkinter msgbox is not very good to use

- Color of the different stars

Still some features to add tomorrow.

- Change keyboard setting, wasd for change accelerator 

- Change time method, keep fps the same, but in game update speed different

- Fix the bouncing logic

- Find a better message box, and game pause system

- At first, give choice to choose a star, get a selection bounding box for the star

- Get event through civilization

- Get game end screen and event

My code is so shitty, really want to refactor my code