Just kicked off my new fluid simulation project for Stardance! Today, I got the absolute basics running. I set up the HTML canvas and built a 2D grid array to handle the underlying math. It’s pretty barebones right now—just clicking and dragging the mouse to inject some neon color into the cells. I implemented a simple diffusion algorithm, so the colors spread out to neighboring cells and slowly fade away over time. It looks a bit blocky because of the low resolution, but it’s super satisfying to see the arrays updating correctly. Next up: adding actual fluid movement!