Most indie devs prompting AI for particle effects end up with bloated classes that trigger garbage collection lag every time an enemy explodes.

Instead, tell your AI coding assistant to use a flat array velocity decay loop directly inside requestAnimationFrame.

The 10-Line Particle Explosion Trick 

const particles = Array.from({ length: 40 }, () => ({ x: hitX, y: hitY, vx: (Math.random() - 0.5) * 12, vy: (Math.random() - 0.5) * 12, alpha: 1 })); particles.forEach(p => { p.x += p.vx; p.y += p.vy; p.vx *= 0.94; p.vy *= 0.94; // Smooth friction decay p.alpha -= 0.025; ctx.fillStyle = `rgba(255, 90, 30, ${Math.max(0, p.alpha)})`; ctx.fillRect(p.x, p.y, 4, 4); });

Why This Pattern Works in One-Shot AI Prompts

  • Zero external libraries: Runs at a locked 60 FPS in any modern browser.
  • Smooth physics: Multiplying velocity by 0.94 each frame creates natural arcade deceleration.
  • LLM friendly: Asking for a flat particle array with friction decay prevents broken particle emitters.

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