Advanced Particle System

Description

This is a modified version of Griffpatch's recent particle effect tutorial in which no clones are used, allowing for an insane amount of particles to be present at once. It can get quite laggy, so if it becomes unusable, consider trying it at https://turbowarp.org/780601277. Update 1: Added a trail effect using another list, friendly with other pen objects Update 2: Added collision! Starting to take a hefty toll on Scratch's interpreter, highly recommend Turbowarp as it is much faster at handling lists (which this project makes heavy use of). Also, the trail effect can now be turned off with the T key. Update 3: Added scrolling! Move around using WASD. Also decided to hide particles touching the edge of the screen at the top, left, and right (particles that fall off the bottom are deleted). Finally, I adjusted bounce parameters to normal levels. This update really brought Scratch to its knees (at least on my system, yours might be different), so I've lowered the number of particles to just 4 per frame. This can still be adjusted, though, so give it a try if you want!

Instructions

Click and drag to bask in sparkling glory! Move around the scene with WASD.