How to Code: Tron-Like Particle Tunnels

To achieve the effect of particles expanding outwards in ring formation, you need to know a little bit of trigonometry. The real question is, "How do you get particles to be placed evenly along the edge of a circle?" By using sine and cosine functions, you can return coordinates for each particle, where if you're increasing the radian value that goes into sine and cosine over time, you get different locations along a circle's edge. Using these values as a particles velocity, you can create a ring expansion effect, where if used correctly, gets the end result we're looking for.

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📃Table of Contents 00:00 Project overview 00:33 Initial canvas setup 03:00 Populate canvas with particles 06:39 Whiteboard explanation of sine / cosine 11:44 Create a ring of circles 17:34 Ring expansion animation 21:15 Generate multiple rings over time 22:46 Remove off-screen particles 25:20 Spawn from mouse coordinates 26:44 Colorize background and particles over time 32:40 Speed-run / particle effect examples 34:07 Outro / Intro to chriscourses.com

🔗 Links CodePen Example: https://codepen.io/chriscourses/pen/rNeWBER Canvas Boilerplate: https://github.com/christopher4lis/canvas-boilerplate ... https://www.youtube.com/watch?v=5MUsKgU6i0I