Fusion animation with Javascript driven by scroll (GSAP)

i have this animation where the plasmid (circle thing) moves towards a row of objects (blue lipids) and i want the lipids to form a circle around the plasmid while it is passing through the row.
I dont know how to animate the movement of the lipids and what tools to use (GSAP was useful so far).

If possible it should look a bit like this

I came this far codepen

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<code>const plasmid_container = document.querySelector(".plasmid_container");
let DOM_plasmid_container = plasmid_container.getBoundingClientRect();
const drop_container = document.querySelector(".drop_container");
let DOM_drop_container = drop_container.getBoundingClientRect();
const scrollsource = document.querySelector(".scrollsource")
let DOM_scrollsource = scrollsource.getBoundingClientRect()
console.log(DOM_scrollsource)
const startpoint = {x: DOM_plasmid_container.x + (DOM_plasmid_container.width/2), y: DOM_plasmid_container.y + (DOM_plasmid_container.height/2)}
console.log(startpoint)
const drop_center = {x: DOM_drop_container.x + (DOM_drop_container.width/2), y: DOM_drop_container.y + (DOM_drop_container.height/2)}
// gets each element with the id and returns the positions of it in an array of ClientRect objects
function get_class_positions(class_name) {
const positions = [];
const elements = document.querySelectorAll(class_name);
for (let i = 0; i < elements.length; i++) {
let element_x = elements[i].getBoundingClientRect().x - startpoint.x;
let element_y = elements[i].getBoundingClientRect().y -startpoint.y;
positions.push({x: element_x, y: element_y});
}
return positions;
}
const anchor = get_class_positions(".anchor")
console.log("DOM anchor")
console.log(anchor)
//create access point and import relevant packages
gsap.registerPlugin(MotionPathPlugin, ScrollTrigger);
/* // variables to set start and end for scrolltimeline
let plasmid_start_trigger = DOM_plasmid_container.y - DOM_scrollsource.y
let plasmid_end_trigger = DOM_drop_container.y - DOM_scrollsource.y + DOM_drop_container.height/2
*/
//create a timeline object
let tl_plasmid = gsap.timeline({
//connect the timeline to scrolltrigger instead of duration in s
scrollTrigger: {
trigger: ".scrollsource", // selector or element
start: "top top", // [trigger]=animated element, [scroller]=viewport
end: "90% 60%",
scrub: 2, // Add scrub to control the animation progress on scroll
markers: true, // Add markers
},
})
// -------------- plasmid path ---------------
// it assumes startpoint is {0/0} so its necessary to substract the strating coordinates from all other coordinates --> this can be changed saw something somewhere in the GSAP docs
const plasmidPath1 = [
{x: 0, y:0},
{x: 0, y: anchor[0].y},
// 1
{x: anchor[0].x, y: anchor[0].y}
]
// scale 3
const plasmidPath2 = [
{x: anchor[1].x, y: anchor[0].y},
{x: anchor[1].x, y: anchor[2].y},
{x: anchor[2].x, y: anchor[2].y},
]
// scale 1
const plasmidPath3 = [
{x: anchor[3].x, y: anchor[2].y},
{x: anchor[3].x, y: anchor[4].y},
{x: anchor[4].x, y: anchor[4].y},
{x: drop_center.x - startpoint.x, y: drop_center.y - startpoint.y},
]
// move in drop
const plasmidPath5 = [
{x: anchor[5].x, y: anchor[5].y},
]
// drop opacity 1
const plasmidPath6 = [
{x: anchor[6].x, y: anchor[6].y}
]
//drop opacity 0
//before bilipid
const plasmidPath7 = [
{x: anchor[7].x, y: anchor[7].y}
]
//after bilipid
// -------------- drop path ---------------
// starts when plasmid hits center, moves synchronized, opacity 0
const dropPath1 = [
{x: 0, y: anchor[5].y - anchor[4].y},
]
// drop opacity 1
const dropPath2 = [
{x: 0, y: anchor[6].y - anchor[4].y}
]
// drop opacity 0
// -------------- PLASMID ANIMATION ---------------
// Animate the plasmid along the plasmidMoving path
tl_plasmid.to(".plasmid_container", {
motionPath: {
path: plasmidPath1,
curviness: 1,
alignOrigin: [0.5, 1]
},
scale: 3,
ease: "linear",
})
.to(".plasmid_container", {
motionPath: {
path: plasmidPath2,
curviness: 1,
alignOrigin: [0.5, 1]
},
scale: 1,
ease: "linear",
})
.to(".plasmid_container", {
motionPath: {
path: plasmidPath3,
curviness: 1,
alignOrigin: [0.5, 1]
},
scale: 1,
ease: "linear",
})
.add("inDrop")
.to(".plasmid_container", {
motionPath: {
path: plasmidPath5,
curviness: 1,
alignOrigin: [0.5, 1]
},
scale: 1,
ease: "linear",
})
.add("dropVisible")
.to(".plasmid_container", {
motionPath: {
path: plasmidPath6,
curviness: 1,
alignOrigin: [0.5, 1]
},
scale: 1,
ease: "linear",
})
.to(".plasmid_container", {
motionPath: {
path: plasmidPath7,
curviness: 1,
alignOrigin: [0.5, 1]
},
scale: 1,
ease: "linear",
})
// -------------- DROP ANIMATION ---------------
// inserted drop tween
tl_plasmid.to(".drop_container", {
motionPath: {
path: dropPath1,
curviness: 1,
alignOrigin: [0.5, 1]
},
ease: "linear",
opacity: 1,
rotate: -720
}, "inDrop") //starts when inDrop label is reached by plasmid
.to(".drop_container", {
motionPath: {
path: dropPath2,
curviness: 1,
alignOrigin: [0.5, 1]
},
ease: "linear",
opacity: 0,
rotation: 365,
}, "dropVisible") //starts when drop has opacity 1, then turn opacity to 0
// create number of images in a certain container with a class and a name
function fill_image_container(container_name, image_source, img_name, div_class, number){
const container = document.getElementById(container_name);
if (!container) {
console.error(`Container with id '${container_name}' not found.`);
return;
}
for (let i = 0; i < number; i++) {
const img = document.createElement('img');
img.src = image_source; // Your image URL as string
img.id = `${img_name}_${i}`; // Alt text for the image
const div = document.createElement('div'); // Step 1: Create a new div
div.className = `${div_class}`
div.appendChild(img); // Step 2: Append the img to the div
container.appendChild(div); // Step 3: Append the div to the container
}
}
fill_image_container("lipid-container", "https://static.igem.wiki/teams/5057/bilipid-b.svg", "bilipid", "bilipid", 100)
window.addEventListener("scroll", () => {
/* let plasmid = document.getElementById("plasmid");
let DOM_plasmid = plasmid.getBoundingClientRect();
// console.log("Plasmid x:", rect_plasmid.x, "Plasmid y:", rect_plasmid.y);
let plasmid_center = {x: DOM_plasmid.x + DOM_plasmid.width/2, y: DOM_plasmid.y + DOM_plasmid.height/2}
console.log("Plasmid center: ", plasmid_center) */
/* let bilipid_50 = document.getElementById("bilipid_50")
let DOM_bilipid_50 = bilipid_50.getBoundingClientRect()
console.log("Bilipid_50 y: " , DOM_bilipid_50.y) */
// function to track the center of a element selected by ID
})
</code>
<code>const plasmid_container = document.querySelector(".plasmid_container"); let DOM_plasmid_container = plasmid_container.getBoundingClientRect(); const drop_container = document.querySelector(".drop_container"); let DOM_drop_container = drop_container.getBoundingClientRect(); const scrollsource = document.querySelector(".scrollsource") let DOM_scrollsource = scrollsource.getBoundingClientRect() console.log(DOM_scrollsource) const startpoint = {x: DOM_plasmid_container.x + (DOM_plasmid_container.width/2), y: DOM_plasmid_container.y + (DOM_plasmid_container.height/2)} console.log(startpoint) const drop_center = {x: DOM_drop_container.x + (DOM_drop_container.width/2), y: DOM_drop_container.y + (DOM_drop_container.height/2)} // gets each element with the id and returns the positions of it in an array of ClientRect objects function get_class_positions(class_name) { const positions = []; const elements = document.querySelectorAll(class_name); for (let i = 0; i < elements.length; i++) { let element_x = elements[i].getBoundingClientRect().x - startpoint.x; let element_y = elements[i].getBoundingClientRect().y -startpoint.y; positions.push({x: element_x, y: element_y}); } return positions; } const anchor = get_class_positions(".anchor") console.log("DOM anchor") console.log(anchor) //create access point and import relevant packages gsap.registerPlugin(MotionPathPlugin, ScrollTrigger); /* // variables to set start and end for scrolltimeline let plasmid_start_trigger = DOM_plasmid_container.y - DOM_scrollsource.y let plasmid_end_trigger = DOM_drop_container.y - DOM_scrollsource.y + DOM_drop_container.height/2 */ //create a timeline object let tl_plasmid = gsap.timeline({ //connect the timeline to scrolltrigger instead of duration in s scrollTrigger: { trigger: ".scrollsource", // selector or element start: "top top", // [trigger]=animated element, [scroller]=viewport end: "90% 60%", scrub: 2, // Add scrub to control the animation progress on scroll markers: true, // Add markers }, }) // -------------- plasmid path --------------- // it assumes startpoint is {0/0} so its necessary to substract the strating coordinates from all other coordinates --> this can be changed saw something somewhere in the GSAP docs const plasmidPath1 = [ {x: 0, y:0}, {x: 0, y: anchor[0].y}, // 1 {x: anchor[0].x, y: anchor[0].y} ] // scale 3 const plasmidPath2 = [ {x: anchor[1].x, y: anchor[0].y}, {x: anchor[1].x, y: anchor[2].y}, {x: anchor[2].x, y: anchor[2].y}, ] // scale 1 const plasmidPath3 = [ {x: anchor[3].x, y: anchor[2].y}, {x: anchor[3].x, y: anchor[4].y}, {x: anchor[4].x, y: anchor[4].y}, {x: drop_center.x - startpoint.x, y: drop_center.y - startpoint.y}, ] // move in drop const plasmidPath5 = [ {x: anchor[5].x, y: anchor[5].y}, ] // drop opacity 1 const plasmidPath6 = [ {x: anchor[6].x, y: anchor[6].y} ] //drop opacity 0 //before bilipid const plasmidPath7 = [ {x: anchor[7].x, y: anchor[7].y} ] //after bilipid // -------------- drop path --------------- // starts when plasmid hits center, moves synchronized, opacity 0 const dropPath1 = [ {x: 0, y: anchor[5].y - anchor[4].y}, ] // drop opacity 1 const dropPath2 = [ {x: 0, y: anchor[6].y - anchor[4].y} ] // drop opacity 0 // -------------- PLASMID ANIMATION --------------- // Animate the plasmid along the plasmidMoving path tl_plasmid.to(".plasmid_container", { motionPath: { path: plasmidPath1, curviness: 1, alignOrigin: [0.5, 1] }, scale: 3, ease: "linear", }) .to(".plasmid_container", { motionPath: { path: plasmidPath2, curviness: 1, alignOrigin: [0.5, 1] }, scale: 1, ease: "linear", }) .to(".plasmid_container", { motionPath: { path: plasmidPath3, curviness: 1, alignOrigin: [0.5, 1] }, scale: 1, ease: "linear", }) .add("inDrop") .to(".plasmid_container", { motionPath: { path: plasmidPath5, curviness: 1, alignOrigin: [0.5, 1] }, scale: 1, ease: "linear", }) .add("dropVisible") .to(".plasmid_container", { motionPath: { path: plasmidPath6, curviness: 1, alignOrigin: [0.5, 1] }, scale: 1, ease: "linear", }) .to(".plasmid_container", { motionPath: { path: plasmidPath7, curviness: 1, alignOrigin: [0.5, 1] }, scale: 1, ease: "linear", }) // -------------- DROP ANIMATION --------------- // inserted drop tween tl_plasmid.to(".drop_container", { motionPath: { path: dropPath1, curviness: 1, alignOrigin: [0.5, 1] }, ease: "linear", opacity: 1, rotate: -720 }, "inDrop") //starts when inDrop label is reached by plasmid .to(".drop_container", { motionPath: { path: dropPath2, curviness: 1, alignOrigin: [0.5, 1] }, ease: "linear", opacity: 0, rotation: 365, }, "dropVisible") //starts when drop has opacity 1, then turn opacity to 0 // create number of images in a certain container with a class and a name function fill_image_container(container_name, image_source, img_name, div_class, number){ const container = document.getElementById(container_name); if (!container) { console.error(`Container with id '${container_name}' not found.`); return; } for (let i = 0; i < number; i++) { const img = document.createElement('img'); img.src = image_source; // Your image URL as string img.id = `${img_name}_${i}`; // Alt text for the image const div = document.createElement('div'); // Step 1: Create a new div div.className = `${div_class}` div.appendChild(img); // Step 2: Append the img to the div container.appendChild(div); // Step 3: Append the div to the container } } fill_image_container("lipid-container", "https://static.igem.wiki/teams/5057/bilipid-b.svg", "bilipid", "bilipid", 100) window.addEventListener("scroll", () => { /* let plasmid = document.getElementById("plasmid"); let DOM_plasmid = plasmid.getBoundingClientRect(); // console.log("Plasmid x:", rect_plasmid.x, "Plasmid y:", rect_plasmid.y); let plasmid_center = {x: DOM_plasmid.x + DOM_plasmid.width/2, y: DOM_plasmid.y + DOM_plasmid.height/2} console.log("Plasmid center: ", plasmid_center) */ /* let bilipid_50 = document.getElementById("bilipid_50") let DOM_bilipid_50 = bilipid_50.getBoundingClientRect() console.log("Bilipid_50 y: " , DOM_bilipid_50.y) */ // function to track the center of a element selected by ID }) </code>
const plasmid_container = document.querySelector(".plasmid_container");
let DOM_plasmid_container = plasmid_container.getBoundingClientRect();
const drop_container = document.querySelector(".drop_container");
let DOM_drop_container = drop_container.getBoundingClientRect();

const scrollsource = document.querySelector(".scrollsource")
let DOM_scrollsource = scrollsource.getBoundingClientRect()
console.log(DOM_scrollsource)

const startpoint = {x: DOM_plasmid_container.x + (DOM_plasmid_container.width/2), y: DOM_plasmid_container.y + (DOM_plasmid_container.height/2)}
console.log(startpoint)
const drop_center = {x: DOM_drop_container.x + (DOM_drop_container.width/2), y: DOM_drop_container.y + (DOM_drop_container.height/2)}


// gets each element with the id and returns the positions of it in an array of ClientRect objects
function get_class_positions(class_name) {
    const positions = [];
    const elements = document.querySelectorAll(class_name);
    for (let i = 0; i < elements.length; i++) {
        let element_x = elements[i].getBoundingClientRect().x - startpoint.x;
        let element_y = elements[i].getBoundingClientRect().y -startpoint.y;
        positions.push({x: element_x, y: element_y});
    }
    return positions;
}
const anchor = get_class_positions(".anchor")
console.log("DOM anchor")
console.log(anchor)

//create access point and import relevant packages
gsap.registerPlugin(MotionPathPlugin, ScrollTrigger);

/* // variables to set start and end for scrolltimeline
let plasmid_start_trigger = DOM_plasmid_container.y - DOM_scrollsource.y
let plasmid_end_trigger = DOM_drop_container.y - DOM_scrollsource.y + DOM_drop_container.height/2
 */

//create a timeline object
let tl_plasmid = gsap.timeline({
    //connect the timeline to scrolltrigger instead of duration in s
    scrollTrigger: {
        trigger: ".scrollsource", // selector or element 
        start: "top top", // [trigger]=animated element, [scroller]=viewport
        end: "90% 60%",
        scrub: 2, // Add scrub to control the animation progress on scroll
        markers: true, // Add markers 
    },
})

// -------------- plasmid path ---------------
// it assumes startpoint is {0/0} so its necessary to substract the strating coordinates from all other coordinates --> this can be changed saw something somewhere in the GSAP docs
const plasmidPath1 = [
    {x: 0, y:0},
    {x: 0, y: anchor[0].y},
    // 1
    {x: anchor[0].x, y: anchor[0].y}
]
// scale 3
const plasmidPath2 = [
    {x: anchor[1].x, y: anchor[0].y},
    {x: anchor[1].x, y: anchor[2].y},
    {x: anchor[2].x, y: anchor[2].y},
]
// scale 1
const plasmidPath3 = [
    {x: anchor[3].x, y: anchor[2].y},
    {x: anchor[3].x, y: anchor[4].y},
    {x: anchor[4].x, y: anchor[4].y},
    {x: drop_center.x - startpoint.x, y: drop_center.y - startpoint.y},
]
// move in drop
const plasmidPath5 = [
    {x: anchor[5].x, y: anchor[5].y},
]
// drop opacity 1
const plasmidPath6 = [
    {x: anchor[6].x, y: anchor[6].y}
]
//drop opacity 0
//before bilipid
const plasmidPath7 = [
    {x: anchor[7].x, y: anchor[7].y}
]
//after bilipid

// -------------- drop path ---------------
// starts when plasmid hits center, moves synchronized, opacity 0
const dropPath1 = [
    {x: 0, y: anchor[5].y - anchor[4].y},
]
// drop opacity 1
const dropPath2 = [
    {x: 0, y: anchor[6].y - anchor[4].y}
]
// drop opacity 0


// -------------- PLASMID ANIMATION ---------------
// Animate the plasmid along the plasmidMoving path
tl_plasmid.to(".plasmid_container", {
        motionPath: {
            path: plasmidPath1,
            curviness: 1,
            alignOrigin: [0.5, 1]
        },
        scale: 3,
        ease: "linear",
    })
    .to(".plasmid_container", {
        motionPath: {
            path: plasmidPath2,
            curviness: 1,
            alignOrigin: [0.5, 1]
        },
        scale: 1,
        ease: "linear",
    })
    .to(".plasmid_container", {
        motionPath: {
            path: plasmidPath3,
            curviness: 1,
            alignOrigin: [0.5, 1]
        },
        scale: 1,
        ease: "linear",
    })
    .add("inDrop")
    .to(".plasmid_container", {
        motionPath: {
            path: plasmidPath5,
            curviness: 1,
            alignOrigin: [0.5, 1]
        },
        scale: 1,
        ease: "linear",
    })
    .add("dropVisible")
    .to(".plasmid_container", {
        motionPath: {
            path: plasmidPath6,
            curviness: 1,
            alignOrigin: [0.5, 1]
        },
        scale: 1,
        ease: "linear",
    })
    .to(".plasmid_container", {
        motionPath: {
            path: plasmidPath7,
            curviness: 1,
            alignOrigin: [0.5, 1]
        },
        scale: 1,
        ease: "linear",
    })


// -------------- DROP ANIMATION ---------------
// inserted drop tween 
tl_plasmid.to(".drop_container", {
        motionPath: {
        path: dropPath1,
            curviness: 1,
            alignOrigin: [0.5, 1] 
        },
        ease: "linear",
        opacity: 1,
        rotate: -720
    }, "inDrop") //starts when inDrop label is reached by plasmid

    .to(".drop_container", {
        motionPath: {
        path: dropPath2,
            curviness: 1,
            alignOrigin: [0.5, 1] 
        },
        ease: "linear",
        opacity: 0,
        rotation: 365,
    }, "dropVisible") //starts when drop has opacity 1, then turn opacity to 0 



// create number of images in a certain container with a class and a name
function fill_image_container(container_name, image_source, img_name, div_class, number){
    const container = document.getElementById(container_name);
    if (!container) {
        console.error(`Container with id '${container_name}' not found.`);
        return;
    }
    for (let i = 0; i < number; i++) {
        const img = document.createElement('img');
        img.src = image_source; // Your image URL as string
        img.id = `${img_name}_${i}`; // Alt text for the image

        const div = document.createElement('div'); // Step 1: Create a new div
        div.className =  `${div_class}`
        div.appendChild(img); // Step 2: Append the img to the div
    
        container.appendChild(div); // Step 3: Append the div to the container
    } 
}
fill_image_container("lipid-container", "https://static.igem.wiki/teams/5057/bilipid-b.svg", "bilipid", "bilipid", 100)

window.addEventListener("scroll", () => {
/*     let plasmid = document.getElementById("plasmid");
    let DOM_plasmid = plasmid.getBoundingClientRect();
    // console.log("Plasmid x:", rect_plasmid.x, "Plasmid y:", rect_plasmid.y);
    let plasmid_center = {x: DOM_plasmid.x + DOM_plasmid.width/2, y: DOM_plasmid.y + DOM_plasmid.height/2}
    console.log("Plasmid center: ", plasmid_center) */

/*     let bilipid_50 = document.getElementById("bilipid_50")
    let DOM_bilipid_50 = bilipid_50.getBoundingClientRect()
    console.log("Bilipid_50 y: " , DOM_bilipid_50.y) */
    // function to track the center of a element selected by ID
})

I also tried to create a Class for the lipids to link them toghether and then let them keep a certain distance to the plasmid but this approach seems way to complicated…

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Trang chủ Giới thiệu Sinh nhật bé trai Sinh nhật bé gái Tổ chức sự kiện Biểu diễn giải trí Dịch vụ khác Trang trí tiệc cưới Tổ chức khai trương Tư vấn dịch vụ Thư viện ảnh Tin tức - sự kiện Liên hệ Chú hề sinh nhật Trang trí YEAR END PARTY công ty Trang trí tất niên cuối năm Trang trí tất niên xu hướng mới nhất Trang trí sinh nhật bé trai Hải Đăng Trang trí sinh nhật bé Khánh Vân Trang trí sinh nhật Bích Ngân Trang trí sinh nhật bé Thanh Trang Thuê ông già Noel phát quà Biểu diễn xiếc khỉ Xiếc quay đĩa
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