Planet Devlog #2 - Galaxy generation, new sprites, and asteroid belts

Now one of the main parts of the game is done. The galaxy can now be seen and is procedurally generated. By pressing space the player can view a map of the galaxy and all star systems. Every system is saved and the map version of each star turns blue and gains the scale of it's star once visited. Also a new addition are asteroid belts. These will be used for mining ore using mining vessels. The distance and amount of asteroids depend on the size of the star. The larger the star the more asteroids spawn and the farther they are out. Every moon and star has different sprites now to give more variety.