Hello Alix, RenJS is based on Phaser https://phaser.io/, everything is inside a canvas, so it'll not be that easy to implement such a thing. In any case, you're welcomed to try.
Hello Alix, RenJS is based on Phaser https://phaser.io/, everything is inside a canvas, so it'll not be that easy to implement such a thing. In any case, you're welcomed to try.