Move Settings constants to Core
Use a Direction object instead of a symbol
Update the Core::Spaceship so it uses the new constants
Combine speed and direction in velocity wherever possible
Update Core::ParallaxBackground to use the new constants
Update Core::Map to use the new constants
Place missed comma
Dependant constants should be initialized in the proper order
Add default spaceship type
Remove commented code
Add Settings constant to make window initialization easier
Use the default type and properly initialize instance variables
Update the spaceship renderer to use the moved to Core constants
Update the game file according to the changes
Minor change, I find it more straightforward this way