I've set up firing an a lot of projectiles to push performance to its limits.

To assist with this I created various debug tools, such as a projectile tweaker.

Projectiles are configured via a json file and can be serialized to the disk, and referenced by other configs (such as a fighter ship config).

 My spatial hash grid has the ability to look up collision shapes within a given spatial hash cell.

But I did not really have the ability to easily query a line of individual cells.

If I wanted to trace a line through the spatial hash, I would need a shape encompassed the entire line.

This was e…

To get better at c++, problem solving, vector math, programming, and rendering -- I embarked on a project to build a game from scratch in c++ and modern OpenGL.

The crux of this engine revolves around the collision system I wrote. Rather than use a library like bullet or PhysX I wanted to learn a b…