import React, { ReactNode, useLayoutEffect, useRef, createRef } from "react";
import { gsap } from "gsap";
import ScrollTrigger from 'gsap/ScrollTrigger';
gsap.registerPlugin(ScrollTrigger);
export interface Props {
letter: string;
}
const Header = () => {
const container = useRef<HTMLDivElement>(null);
const windowSize = useRef([window.innerWidth, window.innerHeight]);
const nameRef = useRef<HTMLDivElement>(null);
let name: string = "MY NAME";
let nameArr: string[] = name.split('');
const letterRefs: any[] = [];
useLayoutEffect(function(): any {
let width = windowSize.current[0];
let height= windowSize.current[1];
let x = (): number => {
return Math.random() * (width - 200);
}
let y = (): number => {
return Math.random() * (height - 200);
}
console.log(letterRefs);
letterRefs.forEach(letterRef => {
let floating = gsap.fromTo(letterRef.current, {
x: x,
y: y,
},
{
id: "letters",
duration: Math.random() * 100,
x: x,
y: y,
});
let scrollAnim = gsap.to(letterRef.current, {
x: (): number => {
if (nameRef.current){
// floating.pause();
let nameWidth = nameRef.current.clientWidth;
return (width/2) - (nameWidth/2);
} else {
return width/1.5
}
},
y: (): number => {
if (nameRef.current){
let nameHeight = nameRef.current.clientHeight;
return (height/2) - (nameHeight/2)
} else {
return height/1.5
}
},
duration: 3,
scrollTrigger: {
// trigger: container.current,
// pin: container.current,
start: 10,
markers: true,
},
})
});
}, []);
return(
<div className="container" ref={container}>
<div className="name" ref ={nameRef}>
{
nameArr.map((value, index) => {
const newLetterRef = createRef<HTMLDivElement>();
letterRefs[index] = newLetterRef;
return <div key={index} className="letter" ref={newLetterRef}>
<div>{value}</div>
</div>
})
}
</div>
</div>
)
};
export default Header;
I'm probably missing something obvious here. I'm currently using forEach to animate each of my div elements in the same way. However, this means that all my animations need to be within it otherwise they can't interact and I am so sure that there is a better, cleaner way.
I'm trying to pause `floating ` on Scrolltrigger but because it is currently only accessible within the loop its already paused on load.