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GIF Loop Coder (GLC) is a JavaScript-based tool designed to create perfectly looping animations using code and HTML5 Canvas. 1. Leverage the Two-Value Array Trick

The simplest way to animate in GLC is to supply a two-value array to any object property. Instead of writing complex loops, passing [startValue, endValue] (such as a circle’s radius as [50, 200]) automatically interpolates the value over time. GLC handles the progression fluidly from frame to frame. 2. Match Width and Height for Squishy Effects

You can animate multiple properties on a single object to give it a more organic feel. To create a squishy, bouncy animation, reverse the values of the width and height arrays. For example, setting the width to [200, 50] and the height to [50, 200] ensures that when the object gets wider, it also gets flatter. 3. Stick to Integers for Speed Multipliers

GLC keeps animations perfectly in sync by default using “bounce mode” interpolation. If you want an object to move faster than the others, you can use the speedMult property. Always use whole integers (like 2 or 3). Using decimals (like 1.5) will break the perfect loop, causing the animation to awkwardly jump back to the beginning. 4. Master Bounce Mode and Default Easing

By default, GLC uses bounce mode interpolation, meaning an object travels from the start value to the end value by the middle of the animation, and then reverses back to the start. It also applies a built-in easing effect, which causes the shape to start moving slowly, speed up in the middle, and slow down at its destination. Lean into this default behavior rather than manually fighting the timing. 5. Preview and Export Safely

When your animation looks correct, use the built-in shortcuts to render it. You can hit Pause (Ctrl + Space) and then the Make GIF button or Ctrl + G. This plays the animation exactly once to capture every frame, encodes it, and gives you an estimated file size before you save it to your computer.

Watch this introductory guide to understand the fundamentals of building animations in GIF Loop Coder: GIF Loop Coder – Introduction Egghead.io · 4 Apr 2024 If you want to dive deeper, let me know: