First of all, It's a very simple and functional pixel fire but was very interesting developing and learning how do that, I did this like a study case after read how the fire of game "DOOM" works. The DOOM Fire Algorithm is a JavaScript-based program that generates a mesmerizing fire effect using a pixel matrix. Fire intensities are calculated and updated over time, creating a dynamic and visually stunning display.

You can see working here: https://pedrofurlaneto.github.io/doom-fire-algorithm/