Thank you for your comment! I'm using raylib to prototype the game. The first release will be in opengl and will be a more GPU oriented system. Nethertheless, I'll work on optimizing the prototype as I'm making it grow for now. Do you think adding procedurally generated planets(in the background), blackholes to trap the ennemies and procedurally generated enemies(different types in groups) based on perlin noise might be a good idea?
I wouldnt proceduraly generate the background since its not exactly something youd tend to look at during gameplay but you could make a few star and planet textures and proceduraly place them using simplex noise.
I dont exactly see how randomizing the enemies would require perlin noise but it doesnt sound like a bad idea and it would definetly add more variety.
Maybe this is my personal taste speaking but id make the game a little bit less chaotic becouse after wave 4 its practicly impossible maybe adding upgrades or more weapons could solve this issue.
Anyhow GL.
Thanks! I also think it's a bit too hard. By randomizing the enemies I meant making groups of ennemies of different classes that are like a squad patrolling instead of just rushing to you to make the game more playable (it's true perlin noise is a bit too much for this task) and the weapons could also help solving the issue. Good continuation and have a nice day!