Nic Raboy of Polyglot Developer writes: "So you’re at a point in your game where you need to allow the player to interact with the game. While keyboard events are common in a lot of games, they aren’t the only way to interact, and they may not even be the best way to interact if you’re planning on taking your game into a mobile setting.
An alternative to using keystrokes to interact with your game is to use pointer events. Events that involve a pointer could include the clicking or movement of a mouse, a tapping of a finger, or a swiping gesture event with either.
In this tutorial, we’re going to see how to interact with a Phaser 3.x game, not with a keyboard, but with your finger on the screen or with your mouse."