Introduction

In Scratch, the most common way to grow a sprite is using change size.

And the most common way to move a sprite is using glide.

Using these methods for animations like clicking a button or showing a logo is not really good.
Here, i use another method, that I call “smooth animation”.
In short, a “smooth animation” is when the sprite’s movement speed varies in the animation, which is better than one of the “animating” methods showed before. Here we’ll see how to make a smooth animation for changing the size of a sprite.

Explaining by an example : changing size

First, let’s set the beginning size.
Then, we open a loop where, at each iteration, we make our sprite grow by the size you want to get minus your current size, divided by your speed.

Important :

• The lower is the speed, the more you have to repeat the loop.
• The speed should be a number between 0 and 1.

Why do we do this ?
Doing the current size minus the wanted size will do the difference between these two. Knowing that difference, we multiply it by a non integer number, so we divide it, to split the difference in mutliple parts, who get smaller as the animation moves on; that’s what makes the “smooth” effect.

Here is an example :

Do what you want !

You can now change that code to use it for something else, like the position.

Now have fun with that !
Thank you for reading this article :3

Article written by delnyn.

How to make smooth animations in Scratch by delnyn is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.