Слайдер / карусель изображений не работает гладко, когда нажимаешь следующий / предыдущий?

Question

https://codepen.io/sub0-l3/pen/xjPwBP

Мне очень нравится этот слайдер, но я не могу найти способ, чтобы при его перемещении он двигался плавно? Кажется, есть некоторые кадры, в которых ползунок сдвигается назад, прежде чем двигаться вперед, когда вы нажимаете на стрелки. Мне было интересно, как я могу сделать так, чтобы он не делал этого? Я пытался понять это, но не повезло.

Спасибо!

.move-out-from-left {
    animation: moveOutLeft 0.5s ease-in-out;
}

.move-out-from-right {
    animation: moveOutRight 0.5s ease-in-out;
}

.move-to-position5-from-left {
    animation: moveToP5Left 0.5s ease-in-out;
}

.move-to-position4-from-left {
    animation: moveToP4Left 0.5s ease-in-out;
}

.move-to-position3-from-left {
    animation: moveToP3Left 0.5s ease-in-out;
}

.move-to-position2-from-left {
    animation: moveToP2Left 0.5s ease-in-out;
}


.move-to-position1-from-left{
    animation: moveToP1Left 0.5s ease-in-out;
}

.move-to-position5-from-right{
    animation: moveToP5Right 0.5s ease-in-out;
}
.move-to-position4-from-right{
    animation: moveToP4Right 0.5s ease-in-out;
}
.move-to-position3-from-right{
    animation: moveToP3Right 0.5s ease-in-out;
}
.move-to-position2-from-right{
    animation: moveToP2Right 0.5s ease-in-out;
}
.move-to-position1-from-right{
    animation: moveToP1Right 0.5s ease-in-out;
}

@keyframes moveOutLeft {
    0% {
        transform: scale(0.75) translateX(0%);
        opacity: 1;
    }
    50% {
        transform: scale(0.5) translateX(-150%);
        opacity: 0.5;
    }
    100% {
        transform: scale(0.25) translateX(0%);
        opacity: 0;
    }
}

@keyframes moveOutRight {
    0% {
        transform: scale(0.75) translateX(0%);
        opacity: 1;
    }
    50% {
        transform: scale(0.5) translateX(150%);
        opacity: 0.5;
    }
    100% {
        transform: scale(0.25) translateX(0%);
        opacity: 0;
    }
}


@keyframes moveToP5Left {
    from {
        transform: scale(0.75) translateX(100%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

@keyframes moveToP4Left {
    from {
        transform: scale(0.75) translateX(100%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP3Left {
    from {
        transform: scale(0.85) translateX(100%);
    }
    to {
        transform: scale(1) translateX(0);
    }
}

@keyframes moveToP2Left {
    from {
        transform: scale(1) translateX(100%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP1Left {
    from {
        transform: scale(0.85) translateX(100%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

Answer 1

Попробуйте это. Я избавился от большей части translateX, потому что именно поэтому он так прыгнул и изменил режим замедления на простой

.move-out-from-left {
    animation: moveOutLeft 0.5s ease-in;
}    
.move-out-from-right {
    animation: moveOutRight 0.5s ease-in;
}    
.move-to-position5-from-left {
    animation: moveToP5Left 0.5s ease-in;
}    
.move-to-position4-from-left {
    animation: moveToP4Left 0.5s ease-in;
}    
.move-to-position3-from-left {
    animation: moveToP3Left 0.5s ease-in;
}    
.move-to-position2-from-left {
    animation: moveToP2Left 0.5s ease-in;
}    
.move-to-position1-from-left{
    animation: moveToP1Left 0.5s ease-in;
}   
.move-to-position5-from-right{
    animation: moveToP5Right 0.5s ease-in;
}
.move-to-position4-from-right{
    animation: moveToP4Right 0.5s ease-in;
}
.move-to-position3-from-right{
    animation: moveToP3Right 0.5s ease-in;
}
.move-to-position2-from-right{
    animation: moveToP2Right 0.5s ease-in;
}
.move-to-position1-from-right{
    animation: moveToP1Right 0.5s ease-in;
}

@keyframes moveOutLeft {
    0% {
        transform: scale(0.75) translateX(0%);
        opacity: 1;
    }    
    100% {
        transform: scale(0.25) translateX(0%);
        opacity: 0;
    }
}

@keyframes moveOutRight {
    0% {
        transform: scale(0.75) translateX(0%);
        opacity: 1;
    }    
    100% {
        transform: scale(0.25) translateX(0%);
        opacity: 0;
    }
}


@keyframes moveToP5Left {
    from {
        transform: scale(0.75) translateX(50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

@keyframes moveToP4Left {
    from {
        transform: scale(0.75) translateX(50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP3Left {
    from {
        transform: scale(0.85) translateX(50%);
    }
    to {
        transform: scale(1) translateX(0);
    }
}

@keyframes moveToP2Left {
    from {
        transform: scale(1) translateX(50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP1Left {
    from {
        transform: scale(0.85) translateX(50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}


@keyframes moveToP1Right {
    from {
        transform: scale(0.75) translateX(-50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

@keyframes moveToP2Right {
    from {
        transform: scale(0.75) translateX(-50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP3Right {
    from {
        transform: scale(0.85) translateX(-50%);
    }
    to {
        transform: scale(1) translateX(0);
    }
}

@keyframes moveToP4Right {
    from {
        transform: scale(1) translateX(-50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP5Right {
    from {
        transform: scale(0.85) translateX(-50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

Ваша главная проблема была в том, что вы перестали переводить.

function shiftLeft() {
    const boxes = document.querySelectorAll(".box");
    const tmpNode = boxes[0];
    boxes[0].className = "box move-out-from-left";

    setTimeout(function() {
        if (boxes.length > 5) {
            tmpNode.classList.add("box--hide");
            boxes[5].className = "box move-to-position5-from-left";
        }
        boxes[1].className = "box move-to-position1-from-left";
        boxes[2].className = "box move-to-position2-from-left";
        boxes[3].className = "box move-to-position3-from-left";
        boxes[4].className = "box move-to-position4-from-left";
        boxes[0].remove();

        document.querySelector(".cards__container").appendChild(tmpNode);

    }, 500);

}

function shiftRight() {
    const boxes = document.querySelectorAll(".box");
    boxes[4].className = "box move-out-from-right";
    setTimeout(function() {
        const noOfCards = boxes.length;
        if (noOfCards > 4) {
            boxes[4].className = "box box--hide";
        }

        const tmpNode = boxes[noOfCards - 1];
        tmpNode.classList.remove("box--hide");
        boxes[noOfCards - 1].remove();
        let parentObj = document.querySelector(".cards__container");
        parentObj.insertBefore(tmpNode, parentObj.firstChild);
        tmpNode.className = "box move-to-position1-from-right";
        boxes[0].className = "box move-to-position2-from-right";
        boxes[1].className = "box move-to-position3-from-right";
        boxes[2].className = "box move-to-position4-from-right";
        boxes[3].className = "box move-to-position5-from-right";
    }, 500);

}

html {
    font-size: 16px;
}

* {
    margin: 0px;
    padding: 0px;
}

body {
    font-family: "Lato", sans-serif;
}

.container {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.button {
    margin-left: 0 3%;
    width: 2rem;
    cursor: pointer;
}

.button--inactive {
    opacity: 0.2;
}

.button img {
    width: 60%;
}

.cards-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cards__container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 25rem;
}

.box {
/*     margin: -1.5rem; */
    width: 12rem;
    height: 20rem;
    box-shadow: 0px 0px 2rem 0px #888888;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    /* transition: 1s all; */
}

.box:nth-child(2n) {
    transform: scale(0.85);
    z-index: -1;
}

.box:nth-child(2) {
  left: 5%;
}

.box:nth-child(4) {
  left: -5%;
}

.box:nth-child(4n + 1) {
    transform: scale(0.75);
    z-index: -2;
}

.box:nth-child(1) {
  left: 15%;
}

.box:nth-child(5) {
  left: -15%;
}

.card__text-content {
    text-align: center;
    width: 75%;
}

.card__title {
    padding: 1rem;
}

.box--hide {
    display: none;
}

.move-out-from-left {
    animation: moveOutLeft 0.5s ease-in;
}

.move-out-from-right {
    animation: moveOutRight 0.5s ease-in;
}

.move-to-position5-from-left {
    animation: moveToP5Left 0.5s ease-in;
}

.move-to-position4-from-left {
    animation: moveToP4Left 0.5s ease-in;
}

.move-to-position3-from-left {
    animation: moveToP3Left 0.5s ease-in;
}

.move-to-position2-from-left {
    animation: moveToP2Left 0.5s ease-in;
}


.move-to-position1-from-left{
    animation: moveToP1Left 0.5s ease-in;
}

.move-to-position5-from-right{
    animation: moveToP5Right 0.5s ease-in;
}
.move-to-position4-from-right{
    animation: moveToP4Right 0.5s ease-in;
}
.move-to-position3-from-right{
    animation: moveToP3Right 0.5s ease-in;
}
.move-to-position2-from-right{
    animation: moveToP2Right 0.5s ease-in;
}
.move-to-position1-from-right{
    animation: moveToP1Right 0.5s ease-in;
}

@keyframes moveOutLeft {
    0% {
        transform: scale(0.75) translateX(0%);
        opacity: 1;
    }

    100% {
        transform: scale(0.25) translateX(0%);
        opacity: 0;
    }
}

@keyframes moveOutRight {
    0% {
        transform: scale(0.75) translateX(0%);
        opacity: 1;
    }

    100% {
        transform: scale(0.25) translateX(0%);
        opacity: 0;
    }
}


@keyframes moveToP5Left {
    from {
        transform: scale(0.75) translateX(50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

@keyframes moveToP4Left {
    from {
        transform: scale(0.75) translateX(50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP3Left {
    from {
        transform: scale(0.85) translateX(50%);
    }
    to {
        transform: scale(1) translateX(0);
    }
}

@keyframes moveToP2Left {
    from {
        transform: scale(1) translateX(50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP1Left {
    from {
        transform: scale(0.85) translateX(50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}


@keyframes moveToP1Right {
    from {
        transform: scale(0.75) translateX(-50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

@keyframes moveToP2Right {
    from {
        transform: scale(0.75) translateX(-50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP3Right {
    from {
        transform: scale(0.85) translateX(-50%);
    }
    to {
        transform: scale(1) translateX(0);
    }
}

@keyframes moveToP4Right {
    from {
        transform: scale(1) translateX(-50%);
    }
    to {
        transform: scale(0.85) translateX(0);
    }
}

@keyframes moveToP5Right {
    from {
        transform: scale(0.85) translateX(-50%);
    }
    to {
        transform: scale(0.75) translateX(0);
    }
}

<head>
    <title>3d-carousal</title>
    <link rel="stylesheet" type="text/css" href="css/style.css">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>

<body>
    <div class="container">
        <div class="button" onclick="shiftLeft()"><img src="https://image.ibb.co/mRsEb7/left_arrow.png" alt=""></div>
        <div class="cards-wrapper">
            <ul class="cards__container">
                <li class="box" style="background-color:red">box 1</li>
                <li class="box">box 2</li>
                <li class="box">box 3</li>
                <li class="box">box 4</li>
                <li class="box">box 5</li>
                <li class="box box--hide">box 6</li>
                <li class="box box--hide">box 7</li>
            </ul>
            <div class="card__text-content">
                <h3 class="card__title">The Famous Five</h3>
                <div class="card__summary">The Famous Five is a series of children's adventure novels written by English author Enid Blyton. The first book, Five on a Treasure Island, was published in 1942.</div>
            </div>
        </div>
        <div class="button" onclick="shiftRight()"><img src="https://image.ibb.co/dfPSw7/right_arrow.png" alt=""></div>
    </div>
    <script src='js/index.js'></script>
</body>

Обратите внимание, что вам нужно развернуть полный фрагмент кода, чтобы увидеть стрелки