Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using it's URL and the proper URL extention.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <body>
<div class="mv">
      <div class="dot js-tg"><div class="inner colorA"></div></div>
      <div class="dot js-tg"><div class="inner colorB"></div></div>
      <div class="dot js-tg"><div class="inner colorC"></div></div>
      <div class="dot js-tg"><div class="inner colorA"></div></div>
      <div class="dot js-tg"><div class="inner colorB"></div></div>
      <div class="dot js-tg"><div class="inner colorC"></div></div>
    </div>
</body>
              
            
!

CSS

              
                * {
        box-sizing: border-box;
      }
      body, html {
        width: 100%;
        height: 100%;
        margin: 0;
        padding: 0;
      }
      .mv {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: hidden;
        background-color: #f4f1cc;
      }
      .dot {
        position: absolute;
        top: 0;
        left: 0;
      }
      .dot .inner {
        position: absolute;
        top: -50px;
        left: -50px;
        width: 100px;
        height: 100px;
        border-radius: 50px;
      }
      .colorA {
        background-color: #dd9588;
      }
      .colorB {
        background-color: #68bc9b;
      }
      .colorC {
        background-color: #9b99be;
      }
              
            
!

JS

              
                
param = [];

init();

// 初期設定
function init() {

  $('.js-tg').each(function(i,e) {

    obj = {
      rate:0,            // 最終目標値までの進捗度
      posTg2:{x:0, y:0}, // 最終目標位置
      posTg1:{x:0, y:0}, // 寄り道位置
      posNow:{x:0, y:0}, // 現在位置
      el:$(e),
      scale:1,
      isStart:false
    }
    reset(obj, i * 0.3);
    param.push(obj);

  });

}


// リセット
function reset(obj, delay) {

  sw = window.innerWidth
  sh = window.innerHeight

  obj.rate = 0;

  obj.posNow.x = random(sw * 0.25, sw * 0.75);
  obj.posNow.y = sh * 1.25;

  // 最終目標位置 画面外へ
  obj.posTg2.x = sw * 0.5;
  obj.posTg2.y = -sh * 0.2;

  // 寄り道
  range = 1;
  obj.posTg1.x = obj.posNow.x + random(-sw * range, sw * range);
  obj.posTg1.y = random(sh * 0.4, sh * 0.6);

  // スケールのランダムに
  obj.scale = random(0.5, 1);

  // rate値をアニメーション
  TweenMax.killTweensOf(obj);
  TweenMax.to(obj, 1, {
    rate:1,
    ease:Power3.easeOut,
    delay:delay
  })

}


// 毎フレーム実行
window.requestAnimationFrame(update);
function update() {

  // イージングかける
  ease = 0.08;

  len = param.length;
  for(var i = 0; i < len; i++) {

    obj = param[i];

    if(obj.rate > 0) {
      // 進捗度を使って、寄り道しつつ最終的にクリックした位置へ行くように
      tgX = (obj.posTg1.x * (1 - obj.rate)) + (obj.posTg2.x * obj.rate);
      tgY = (obj.posTg1.y * (1 - obj.rate)) + (obj.posTg2.y * obj.rate);
      obj.posNow.x += (tgX - obj.posNow.x) * ease;
      obj.posNow.y += (tgY - obj.posNow.y) * ease;
    }

    // DOM更新
    TweenMax.set(obj.el, {
      x:obj.posNow.x,
      y:obj.posNow.y,
      scale:obj.scale
    });

    // だいたい1に近づいたら目標値変更
    if(Math.abs(1 - obj.rate) < 0.005) {
      reset(obj, random(0, 0.5));
    }
  }

  window.requestAnimationFrame(update);
}




// ----------------------------------------
// 度からラジアンに変換
// @val : 度
// ----------------------------------------
function radian(val) {
  return val * Math.PI / 180;
}

// ----------------------------------------
// ラジアンから度に変換
// @val : ラジアン
// ----------------------------------------
function degree(val) {
  return val * 180 / Math.PI;
}

// ----------------------------------------
// minからmaxまでランダム
// ----------------------------------------
function random(min, max) {
  return Math.random() * (max - min) + min;
}

              
            
!
999px

Console