[Legendary] How to make an animation?

fart sex

And so I know that with eventData.getPartialTicks() in render2D you can somehow make an animation, but how to do it?

0x64

@skidma wdym animation

fart sex

@asutoboki-kun smooth rect animation

0x64

@skidma still can't get it

fart sex

@asutoboki-kun
ZERODAY B20.6 RELEASED | HYPIXEL ZOOMING & BOOMING – 01:59
— Intent Store

(TargetHud health bar animation)

0x64

@skidma uh

function animate(target, current, speed, partialTicks) {
	dif = target - current;
	if (speed < 0) {
		speed = 0;
	}
	if (speed > 1) {
		speed = 1;
	}
	factor = dif * speed * partialTicks;
	if (target > current) {
		current += factor;
	} else {
		current -= factor;
	}
	return current;
}

var shit;
//...(the following lines of code will use Core)
	
	onRender2D: function(event) {
		shit = animate(target_here, shit, speed_here, event.getPartialTicks());
		//too lazy since it's late rn
	}