Phaser 4 Particles

Particles are how a game reads as responsive. A hit that spawns three sparks feels twice as solid as the same hit without them, for a fraction of the work of any other juice technique.

They are also the most common cause of a Phaser game running at 20fps.

The emitter

const emitter = this.add.particles(x, y, 'texture', config);

One call creates and adds an emitter. It is a normal game object: it has depth, scroll factor, alpha, and can go in a container.