Add a trail effect to any object with one line of code! Just call create_trail once (it does not need to go in step or draw event).
Most trail effects are only intended for finger swipes. These path-based trail effects are already set up to work with projectiles and swords!
Unleash the full potential of trail effects!
Trails need not be straight and narrow! It is possible to create your own path building algorithm inside of the trail_path_update function.
Here is a link to everything by this author: https://marketplace.yoyogames.com/publishers/218/ground-effect-games
To get the demo, just click the link "more info" below.
NEW: blow up the rockets with the sword! Added more comments to the code.