This has been fixed.

I am trying to implement every tween in HaxeFlixel into Scratch. I am currently struggling on the Bounce tween.
Here is Easings.net's function:

function easeOutBounce(x: number): number {
const n1 = 7.5625;
const d1 = 2.75;

if (x < 1 / d1) {
return n1 * x * x;
} else if (x < 2 / d1) {
return n1 * (x -= 1.5 / d1) * x + 0.75;
} else if (x < 2.5 / d1) {
return n1 * (x -= 2.25 / d1) * x + 0.9375;
} else {
return n1 * (x -= 2.625 / d1) * x + 0.984375;
}
}

and here is a link to an SB3 containing my failed recreation.

What's that -= doing in the middle of the expressions?

DragonBeast829 wrote:

What's that -= doing in the middle of the expressions?

-= is TypeScript's form of the (() - ()) block. It's a short way to say “x = x - y” (or “set x to x - y” in scratch terms)

Bump

bump

bump

Greenie_WasTaken wrote:

I am trying to implement every tween in HaxeFlixel into Scratch. I am currently struggling on the Bounce tween.
Here is Easings.net's function:

function easeOutBounce(x: number): number {
const n1 = 7.5625;
const d1 = 2.75;

if (x < 1 / d1) {
return n1 * x * x;
} else if (x < 2 / d1) {
return n1 * (x -= 1.5 / d1) * x + 0.75;
} else if (x < 2.5 / d1) {
return n1 * (x -= 2.25 / d1) * x + 0.9375;
} else {
return n1 * (x -= 2.625 / d1) * x + 0.984375;
}
}

and here is a link to an SB3 containing my failed recreation.

I personally don't have time right now to checkk this, will try and check in a solid few hours

Sorry I didn't respond quicker, it didn't notify me.

I'd also recommend not bumping several times in one day

I'm aware of what -= means in textual programming languages. My confusion stemmed from the fact it's in the middle of an expression, which isn't valid in any language I know; you probably meant to write -, not -=. Also I thought HaxeFlixel uses Haxe, not TypeScript.

edit: I looked it up and this is some obscure TypeScript syntax I've never seen before. I'll see if I can remake this easing function in Scratch later, when I have time.

DragonBeast829 wrote:

I'm aware of what -= means in textual programming languages. My confusion stemmed from the fact it's in the middle of an expression, which isn't valid in any language I know…

That's how it was written on Easings.net.

DragonBeast829 wrote:

Also I thought HaxeFlixel uses Haxe, not TypeScript.

Yes, but Easings.net writes its easing code in TypeScript, and my school's wifi blocked GitHub for some ungodly reason so I can't access Flixel's source code.

EDIT: also you gotta click “Follow Discussion” to get notified of new posts in a topic

Greenie_WasTaken wrote:

Yes, but Easings.net writes its easing code in TypeScript, and my school's wifi blocked GitHub for some ungodly reason so I can't access Flixel's source code.

Oh, I didn't know about that website.

Greenie_WasTaken wrote:

DragonBeast829 wrote:

EDIT: also you gotta click “Follow Discussion” to get notified of new posts in a topic

Yup, I know. Scratch doesn't notify me anyway sometimes. It's annoying.

bump

This has now been fixed (it was because Easings.net's implementation is WRONG!!!!! I used a SourceForge mirror of HaxeFlixel's source code to access flxEase.hx and implemented it from there). I will now close the topic after editing the first message.