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HTML

              
                <div class="scene">
  <svg preserveAspectRatio="xMinYMin meet" xmlns="http://www.w3.org/2000/svg" width="1280" height="720" viewBox="0 0 1280 720">
    <g class="space">
      <svg class="Warstwa_1" data-name="Warstwa 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1280 720">
        <defs>
          <style>
            .cls-1 {
              fill: #212121;
            }

            .cls-2 {
              fill: #e5e5e5;
            }

            .cls-3 {
              fill: #e8f1f9;
            }

            .cls-4 {
              fill: #a1e2a4;
            }

            .cls-5 {
              fill: #fff;
            }

            .cls-6 {
              fill: none;
              stroke: #898989;
              stroke-miterlimit: 10;
              stroke-width: 10px;
            }
          </style>
        </defs>
        <title>space</title>
        <g class="sky">
          <rect class="cls-1" x="-21" y="-43" width="1329.14" height="788" />
          <circle class="cls-2" cx="359" cy="329.52" r="6.79" />
          <circle class="cls-2" cx="65.75" cy="323.34" r="8" />
          <circle class="cls-2" cx="65.75" cy="33.56" r="6.16" />
          <circle class="cls-2" cx="606.93" cy="257" r="5.68" />
          <circle class="cls-2" cx="395.87" cy="215.14" r="5.2" />
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          <circle class="cls-2" cx="267.63" cy="115.19" r="7.11" />
          <circle class="cls-2" cx="286.78" cy="60" r="8.16" />
          <circle class="cls-2" cx="104.79" cy="119.09" r="3.39" />
          <circle class="cls-2" cx="152.09" cy="434.15" r="7.3" />
          <circle class="cls-2" cx="199.1" cy="533.4" r="3.91" />
          <circle class="cls-2" cx="224.33" cy="577.74" r="2.64" />
          <circle class="cls-2" cx="178.92" cy="626.46" r="3.85" />
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          <circle class="cls-2" cx="392.44" cy="670.31" r="6.52" />
          <circle class="cls-2" cx="466.52" cy="640.24" r="9.36" />
          <circle class="cls-2" cx="602.03" cy="614.43" r="6.54" />
          <circle class="cls-2" cx="768.45" cy="687.94" r="4.64" />
          <circle class="cls-2" cx="816.75" cy="640.4" r="5.38" />
          <circle class="cls-2" cx="961.76" cy="414.89" r="6.11" />
          <circle class="cls-2" cx="927.92" cy="331.37" r="8.4" />
          <circle class="cls-2" cx="991.09" cy="220.97" r="6.65" />
          <circle class="cls-2" cx="1102.71" cy="114.11" r="7.47" />
          <circle class="cls-2" cx="1184.71" cy="100.14" r="6.8" />
          <circle class="cls-2" cx="1170.9" cy="198.35" r="6.68" />
          <circle class="cls-2" cx="1142.65" cy="340.93" r="4.55" />
          <circle class="cls-2" cx="1256.47" cy="510.28" r="4.52" />
          <circle class="cls-2" cx="1266.53" cy="569.57" r="5.83" />
          <circle class="cls-2" cx="1189.58" cy="336.94" r="6.48" />
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          <circle class="cls-2" cx="883.38" cy="97.31" r="8.3" />
          <circle class="cls-2" cx="722.82" cy="35.11" r="6.25" />
          <circle class="cls-2" cx="662.32" cy="17.33" r="5.84" />
          <circle class="cls-2" cx="1131.69" cy="499.73" r="6.03" />
          <circle class="cls-2" cx="1148.95" cy="531.27" r="6.21" />
          <circle class="cls-2" cx="1142.94" cy="604.67" r="6.04" />
          <circle class="cls-2" cx="722.82" cy="483.83" r="5.09" />
          <circle class="cls-2" cx="991.72" cy="619.18" r="4.96" />
          <circle class="cls-2" cx="957.12" cy="643.02" r="4.87" />
          <circle class="cls-2" cx="316.52" cy="502.08" r="5.07" />
          <circle class="cls-2" cx="371.13" cy="469.18" r="4.47" />
          <circle class="cls-2" cx="422.28" cy="394.24" r="4.47" />
        </g>
        <g class="earth">
          <g class="ścieżka">
            <g class="land">
              <path class="cls-3" d="M687.91,387a54.93,54.93,0,1,0-30,25Z" />
              <path class="cls-4" d="M687.91,387a21.58,21.58,0,0,0-14.34-14.79,21.32,21.32,0,0,0-5.45-1c0-.54.06-1.08.06-1.63,0-.72,0-1.42-.1-2.12a21.57,21.57,0,0,0-43,2.12,21.85,21.85,0,0,0,.38,4.07h0a21.6,21.6,0,0,0,20.2,17.47A24.19,24.19,0,0,0,657.9,412Z" />
              <path class="cls-4" d="M654.74,314.87a21.58,21.58,0,0,1-24.81,17.77q-.79-.14-1.59-.33a21.57,21.57,0,0,1-39.33,7A55.05,55.05,0,0,1,654.58,307,21.4,21.4,0,0,1,654.74,314.87Z" />
            </g>
            <path class="cls-3" d="M647.85,357.88c0,2.74-2.75,2-5.5,1.9a2.8,2.8,0,1,1-4.57,2.16v-.13c-2.8,1.86-5.63,4.06-5.63,2.26,0-2.84,2.68-8.81,5.52-8.81S647.85,355.05,647.85,357.88Z" />
            <g class="earth-clouds">
              <path class="cls-5" d="M627,371.84a8.69,8.69,0,0,1-.73-13.25,6.87,6.87,0,0,1,10.5-8.07l0,0A7.88,7.88,0,1,1,645.94,363a5,5,0,0,1-6.89,7.18A8.68,8.68,0,0,1,627,371.84Z" />
              <path class="cls-5" d="M675.05,375.92a5.34,5.34,0,0,1-5.34,5.34h0a5.29,5.29,0,0,1-10.07,2.27,2.8,2.8,0,0,1-.51,0,3,3,0,0,1-3-3,2.89,2.89,0,0,1,0-.36,4.36,4.36,0,0,1,1.74-8.36h0c0-.07,0-.13,0-.2a6,6,0,0,1,11.8-1.1h0A5.34,5.34,0,0,1,675.05,375.92Z" />
              <path class="cls-5" d="M617.73,337.46a5.34,5.34,0,0,1-5.34,5.34h0a5.29,5.29,0,0,1-10.07,2.27,2.8,2.8,0,0,1-.51,0,3,3,0,0,1-3-3,2.89,2.89,0,0,1,0-.36,4.36,4.36,0,0,1,1.74-8.36h0c0-.07,0-.13,0-.2a6,6,0,0,1,11.8-1.1h0A5.34,5.34,0,0,1,617.73,337.46Z" />
            </g>
          </g>
          <path class="cls-6" d="M695,360a55,55,0,1,1-40.42-53A54.76,54.76,0,0,1,695,360Z" />
        </g>
      </svg>
    </g>

    <g class="room">
      <svg class="Warstwa_1" data-name="Warstwa 1" xmlns="http://www.w3.org/2000/svg" width="1280" height="720" viewBox="0 0 1280 720">
        <title>room</title>
        <polygon points="858.5 157.46 858.5 410.12 1278.5 720 1278.5 0 858.5 157.46" fill="#f9f9f9" />
        <polygon points="414.51 410.12 1.5 720 1281.5 720 858.5 410.12 414.51 410.12" fill="#f4f4f4" />
        <polygon points="414.51 157.46 1.5 0 1271.52 0 858.5 157.46 414.51 157.46" fill="#dddbdb" />
        <polygon points="414.51 157.46 414.51 410.12 1.5 720 1.5 0 414.51 157.46" fill="#f9f9f9" />
        <rect x="414.51" y="157.46" width="443.98" height="252.66" fill="#efefef" />
        <g class="mr-triangle">
          <polyline class="leg-right" points="596.13 384.15 596.13 424.49 584.33 428.9" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
          <polyline class="leg-left" points="672.7 384.15 672.7 424.49 684.5 428.9" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
          <g class="body">
            <rect class="button" x="622.96" y="280.18" width="22.91" height="12.74" fill="#ff7bac" />
            <polygon class="hat" points="651.26 292.92 617.56 292.92 634.41 265.94 651.26 292.92" fill="#fff" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <polygon class="shape" points="714.5 394.15 554.33 394.15 617.56 292.92 651.26 292.92 714.5 394.15" fill="#fff" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <path class="saliva" d="M621.5,371.21S622.63,386,626.13,386s3.38-16.41,3.38-16.41,1.81,6.54,4.91,6.91,5-6.91,5-6.91.5,4.64,3.13,4.64,5.13-7.86,5.13-7.86,1,12.13,4,11.88,3.09-10.87,3.09-10.87" fill="#83ce3e" />
            <path class="mouth-2" d="M614.08,374.18s7.06-4.7,21.88-5.74a97.84,97.84,0,0,1,21.88,1.1" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <path class="mouth" d="M618.57,366.26s.72,13.67,15.84,13.67,15.84-13.67,15.84-13.67" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <circle cx="584.33" cy="375.82" r="6.28" fill="#ff7bac" />
            <circle cx="684.5" cy="375.82" r="6.28" fill="#ff7bac" />
            <path class="hand-right" d="M604.79,313.36c-98.94-16-70.22,80.79-70.22,80.79" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <path class="hand-left-3" d="M664,313.36c98.94-16,8.94-106-26.52-28.78" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <path class="hand-left-1" d="M734.26,394.15S763,297.39,664,313.36" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <path class="hand-left-2" d="M693.5,223.83c52.5-23.5,93,98-29.46,89.54" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
            <g class="eyes">
              <g class="eyes-closed">
                <path d="M604.79,349.78a9.29,9.29,0,1,1,18.57,0" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
                <path d="M645.46,349.78a9.29,9.29,0,0,1,18.57,0" fill="none" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
              </g>
              <g class="eyes-opened">
                <g class="eyes-2" data-name="eyes">
                  <circle cx="614.08" cy="345.78" r="9.29" fill="#fff" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
                  <circle cx="654.75" cy="345.78" r="9.29" fill="#fff" stroke="#898989" stroke-miterlimit="10" stroke-width="4.91" />
                </g>
                <g class="irises">
                  <circle cx="614.08" cy="345.78" r="3.09" fill="#898989" />
                  <circle cx="654.75" cy="345.78" r="3.09" fill="#898989" />
                </g>
              </g>
              <g class="eyes-active">
                <circle cx="614.08" cy="345.78" r="9.95" fill="#83ce3e" />
                <circle cx="654.75" cy="345.78" r="9.95" fill="#83ce3e" />
              </g>
            </g>
          </g>
          <ellipse class="shadow" cx="634.41" cy="428.9" rx="69.94" ry="9.82" fill="#898989" opacity="0.2" />
        </g>
      </svg>
    </g>

    <g class="tower">
      <svg xmlns="http://www.w3.org/2000/svg" width="1280" height="661.21" viewBox="0 0 1280 661.21">
        <title>tower</title>
        <g class="Warstwa_2" data-name="Warstwa 2">
          <g class="Warstwa_1-2" data-name="Warstwa 1">
            <ellipse cx="640" cy="462.34" rx="640" ry="198.87" fill="#a1e2a4" />
            <path d="M744.27,346.79c-9.55,41.22-111.22,47-163,26.78-29.35-11.46-45.13-43.37-63.59-60.94-29.1-27.7-61.49-39.22-42.36-41.88,102.16-14.21,162.38,6.53,265.59,74.94" fill="#212121" />
            <path d="M562.06,40.43V345.69c0,19.57,39.91,35.44,89.14,35.44s89.74-15.87,89.74-35.44V40.43ZM674.59,188a217.53,217.53,0,0,1-23.39,1.23A217,217,0,0,1,628.41,188V150.13a219.79,219.79,0,0,0,23.09,1.2,219.79,219.79,0,0,0,23.09-1.2Z" fill="#fff" stroke="#898989" stroke-miterlimit="10" stroke-width="10" />
            <ellipse cx="651.5" cy="40.44" rx="89.14" ry="35.44" fill="#fff" stroke="#898989" stroke-miterlimit="10" stroke-width="10" />
          </g>
        </g>
      </svg>
    </g>

    <g class="clouds-group">
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="65.04" height="62.87" viewBox="0 0 65.04 62.87">
          <title>cloud-a_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path d="M65,30.77A16.12,16.12,0,0,1,48.92,46.89h-.14a16,16,0,0,1-30.41,6.87,8.46,8.46,0,0,1-1.55.14,9,9,0,0,1-9-9,8.72,8.72,0,0,1,.07-1.09,13.18,13.18,0,0,1,5.26-25.26h0c0-.2,0-.4,0-.59a18,18,0,0,1,35.64-3.33h.1A16.12,16.12,0,0,1,65,30.77Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="90.37" height="77.3" viewBox="0 0 90.37 77.3">
          <title>cloud-b_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path class="M90.37,41.36A26.25,26.25,0,0,1,59.73,67.21,20.76,20.76,0,0,1,21.16,56.54v-.15A23.79,23.79,0,1,1,34.62,11.56a15.13,15.13,0,0,1,29.83,3.57A26.22,26.22,0,0,1,90.37,41.36Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="65.04" height="62.87" viewBox="0 0 65.04 62.87">
          <title>cloud-a_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path d="M65,30.77A16.12,16.12,0,0,1,48.92,46.89h-.14a16,16,0,0,1-30.41,6.87,8.46,8.46,0,0,1-1.55.14,9,9,0,0,1-9-9,8.72,8.72,0,0,1,.07-1.09,13.18,13.18,0,0,1,5.26-25.26h0c0-.2,0-.4,0-.59a18,18,0,0,1,35.64-3.33h.1A16.12,16.12,0,0,1,65,30.77Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="90.37" height="77.3" viewBox="0 0 90.37 77.3">
          <title>cloud-b_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path class="M90.37,41.36A26.25,26.25,0,0,1,59.73,67.21,20.76,20.76,0,0,1,21.16,56.54v-.15A23.79,23.79,0,1,1,34.62,11.56a15.13,15.13,0,0,1,29.83,3.57A26.22,26.22,0,0,1,90.37,41.36Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="65.04" height="62.87" viewBox="0 0 65.04 62.87">
          <title>cloud-a_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path d="M65,30.77A16.12,16.12,0,0,1,48.92,46.89h-.14a16,16,0,0,1-30.41,6.87,8.46,8.46,0,0,1-1.55.14,9,9,0,0,1-9-9,8.72,8.72,0,0,1,.07-1.09,13.18,13.18,0,0,1,5.26-25.26h0c0-.2,0-.4,0-.59a18,18,0,0,1,35.64-3.33h.1A16.12,16.12,0,0,1,65,30.77Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="90.37" height="77.3" viewBox="0 0 90.37 77.3">
          <title>cloud-b_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path class="M90.37,41.36A26.25,26.25,0,0,1,59.73,67.21,20.76,20.76,0,0,1,21.16,56.54v-.15A23.79,23.79,0,1,1,34.62,11.56a15.13,15.13,0,0,1,29.83,3.57A26.22,26.22,0,0,1,90.37,41.36Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="65.04" height="62.87" viewBox="0 0 65.04 62.87">
          <title>cloud-a_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path d="M65,30.77A16.12,16.12,0,0,1,48.92,46.89h-.14a16,16,0,0,1-30.41,6.87,8.46,8.46,0,0,1-1.55.14,9,9,0,0,1-9-9,8.72,8.72,0,0,1,.07-1.09,13.18,13.18,0,0,1,5.26-25.26h0c0-.2,0-.4,0-.59a18,18,0,0,1,35.64-3.33h.1A16.12,16.12,0,0,1,65,30.77Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
      <g class="particle"><svg xmlns="http://www.w3.org/2000/svg" width="90.37" height="77.3" viewBox="0 0 90.37 77.3">
          <title>cloud-b_1</title>
          <g class="Warstwa_2" data-name="Warstwa 2">
            <g class="Warstwa_1-2" data-name="Warstwa 1">
              <path class="M90.37,41.36A26.25,26.25,0,0,1,59.73,67.21,20.76,20.76,0,0,1,21.16,56.54v-.15A23.79,23.79,0,1,1,34.62,11.56a15.13,15.13,0,0,1,29.83,3.57A26.22,26.22,0,0,1,90.37,41.36Z" fill="#fff" />
            </g>
          </g>
        </svg>
      </g>
    </g>
  </svg>

  <div class="scene__outro-text">GSAP</div>
</div>
              
            
!

CSS

              
                html,
body {
  overflow: hidden;
  position: fixed;
  width: 100%;
  height: 100%;
}

.scene {
  transition: opacity 0.5s;
  transform: translate(-50%, -50%);
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100%;
  height: 0;
  overflow: hidden;
  padding-bottom: (720 / 1280) * 100%;
  background: #e8f1f9;
  opacity: 0;

  svg {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }

  .is-ready & {
    opacity: 1;
  }
}

.scene__outro-text {
  width: 100%;
  text-align: center;
  font-family: Helvetica, sans-serif;
  transform: translate(-50%, -50%);
  position: absolute;
  top: 50%;
  left: 50%;
  font-size: 24vw;
  color: white;
  perspective: 100vw;

  // FF fix
  div {
    perspective: 100vw;
  }
}

.scene-controls__control {
  $width: 90vw;

  -webkit-appearance: none;
  display: none;
  position: fixed;
  top: 20px;
  left: 5vw;
  width: $width;
  z-index: 999;

  .is-debug & {
    display: block;
  }

  @mixin track {
    width: $width;
    height: 5px;
    background: #ddd;
    border: none;
    border-radius: 3px;
  }

  @mixin thumb {
    border: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    box-shadow: 0 2px 2px 0 rgba(black, 0.3);
    background: white;
    margin-top: -4px;
  }

  &::-webkit-slider-runnable-track {
    @include track;
  }

  &::-webkit-slider-thumb {
    -webkit-appearance: none;
    @include thumb;
  }

  &:focus {
    outline: none;
  }

  &:focus::-webkit-slider-runnable-track {
    background: #ccc;
  }

  &::-moz-range-track {
    @include track;
  }

  &::-moz-range-thumb {
    @include thumb;
  }

  &:-moz-focusring {
    outline: 1px solid white;
    outline-offset: -1px;
  }

  &::-ms-track {
    width: $width;
    height: 5px;
    background: transparent;
    border-color: transparent;
    border-width: 6px 0;
    color: transparent;
  }

  &::-ms-fill-lower {
    background: #777;
    border-radius: 10px;
  }

  &::-ms-fill-upper {
    background: #ddd;
    border-radius: 10px;
  }

  &::-ms-thumb {
    @include thumb;
  }

  &:focus::-ms-fill-lower {
    background: #888;
  }

  &:focus::-ms-fill-upper {
    background: #ccc;
  }
}

.scene-controls__play {
  position: absolute;
  top: 50px;
  left: 5vw;
  display: block;
  padding: 4px 20px;
  background: black;
  border: 0 none;
  color: white;
  font-family: Helvetica, Arial, sans-serif;
  font-weight: 300;
  border: 1px solid white;

  .is-debug & {
    display: block;
  }
}

              
            
!

JS

              
                import { Howl, Howler } from "https://cdn.skypack.dev/howler@2.2.3";

function getRandom(min, max) {
  return Math.random() * (max - min) + min;
}

function getRandomInt(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min) + min);
}

const $ = document;

const SCENE_CX = 1280 / 2;
const SCENE_CY = 720 / 2;
const cloudsGroup = $.querySelector(".clouds-group");
const space = $.querySelector(".space");
const earth = space.querySelector(".earth");
const earthClouds = space.querySelector(".earth-clouds");
const room = $.querySelector(".room");
const sky = space.querySelector(".sky");
const tower = $.querySelector(".tower");
const mrTriangle = $.querySelector(".mr-triangle");
const outroText = $.querySelector(".scene__outro-text");
const mrTriangleAll = {
  body: mrTriangle.querySelector(".body"),
  handRight: mrTriangle.querySelector(".hand-right"),
  handLeft1: mrTriangle.querySelector(".hand-left-1"),
  handLeft2: mrTriangle.querySelector(".hand-left-2"),
  handLeft3: mrTriangle.querySelector(".hand-left-3"),
  mouth: mrTriangle.querySelector(".mouth"),
  mouth2: mrTriangle.querySelector(".mouth-2"),
  saliva: mrTriangle.querySelector(".saliva"),
  eyes: mrTriangle.querySelector(".eyes"),
  eyesClosed: mrTriangle.querySelector(".eyes-closed"),
  eyesOpened: mrTriangle.querySelector(".eyes-opened"),
  eyesActive: mrTriangle.querySelector(".eyes-active"),
  irises: mrTriangle.querySelector(".irises"),
  button: mrTriangle.querySelector(".button"),
  hat: mrTriangle.querySelector(".hat"),
  shadow: mrTriangle.querySelector(".shadow")
};

let progressedCount = 0;
let isPlaying = false;
const items = [];
const placedItems = [];
const callbacks = [];

// It _should_ deal with the distorted sounds issue on iOS
// https://github.com/goldfire/howler.js/issues/434
Howler.unload();

const Sounds = {
  onLoad,
  getSound,
  items,
  addSound,
  resumeAll,
  pauseAll,
  placeSound,
  finishSound,
  allReady: () => Promise.all(items.map((item) => item.promise))
};

Sounds.addSound('humming');
Sounds.addSound('music');
Sounds.addSound('button');

function onLoad(callback) {
  callbacks.push(callback);
}

function getSound(name) {
  return items.find((item) => item.name === name).sound;
}

function executeCallbacks() {
  if (!callbacks.length) {
    return;
  }
  callbacks.forEach((callback) => callback(items, progressedCount));
}

function pauseAll() {
  isPlaying = false;

  items.forEach((item) => item.sound.pause());
}

function resumeAll(timeline) {
  isPlaying = true;

  placedItems.forEach((placedItem) => {
    const { name, startTime, endTime } = placedItem;
    const item = items.find((item) => item.name === name);
    
    if (!item) return;
    
    const currentTime = timeline.time();

    if (currentTime >= startTime && currentTime <= endTime) {
      item.sound
        .volume(1)
        .seek(currentTime - startTime)
        .play();
    } else {
      item.sound.pause();
    }
  });
}

function placeSound(name, tl, label) {
  const item = items.find((item) => item.name === name);

  if (!item) return;

  const sound = item.sound;

  if (isPlaying) {
    sound.seek(0).play();
  }

  if (placedItems.some(checkIfPlaced.bind(null, name, label))) {
    return;
  }

  const duration = sound.duration();
  const startTime = tl.startTime() + tl.labels[label];
  const endTime = duration + startTime;

  placedItems.push({
    name,
    label,
    startTime,
    endTime,
    duration
  });
}

function finishSound(name, tl, startLabel, finishLabel, duration = 0) {
  const item = items.find((item) => item.name === name);
  
  if (!item) return;
  
  const sound = item.sound;

  if (duration && isPlaying) {
    sound.fade(sound.volume(), 0, duration);
  } else if (isPlaying) {
    sound.pause();
  }

  if (placedItems.some(checkIfTruncated.bind(null, name, startLabel))) {
    return;
  }

  const index = placedItems.findIndex(
    (item) => item.name === name && item.label === startLabel
  );
  const placedItem = placedItems[index];
  const endTime = tl.startTime() + tl.labels[finishLabel];

  placedItem.isTruncated = true;
  placedItem.endTime = endTime;
}

function checkIfPlaced(name, label, item) {
  return item.name === name && item.label === label;
}

function checkIfTruncated(name, label, item) {
  return item.name === name && item.label === label && item.isTruncated;
}

function addSound(name, fileName) {
  if (!fileName) {
    fileName = name;
  }

  const offScreenPaused = false;
  const sound = new Howl({
    src: [
      `https://assets.codepen.io/62093/${fileName}.ogg`,
      `https://assets.codepen.io/62093/${fileName}.mp3`
    ]
  });
  const promise = new Promise((resolve) => {
    sound.on("load", () => {
      progressedCount += 1;
      executeCallbacks();
      resolve();
    });
  });

  items.push({ name, sound, promise, offScreenPaused });
}

function timelineUI(timeline) {
  const bodyEl = document.querySelector("body");
  const timelineControlEl = document.createElement("input");
  const timelinePlayEl = document.createElement("button");
  const { pauseAll, resumeAll } = Sounds;

  let intitalProgress = parseFloat(localStorage.getItem("timelineValue"));
  let isPlaying = false;

  if (isNaN(intitalProgress)) {
    intitalProgress = 0;
  }

  document.documentElement.classList.add("is-debug");

  timelineControlEl.classList.add("scene-controls__control");
  timelineControlEl.setAttribute("type", "range");
  timelineControlEl.setAttribute("min", 0);
  timelineControlEl.setAttribute("max", 1);
  timelineControlEl.setAttribute("value", intitalProgress);
  timelineControlEl.setAttribute("step", 0.001);
  bodyEl.appendChild(timelineControlEl);

  timelinePlayEl.setAttribute("class", "scene-controls__play");
  timelinePlayEl.textContent = "Play/Pause";
  bodyEl.appendChild(timelinePlayEl);

  timeline.progress(intitalProgress);
  timeline.eventCallback("onUpdate", () => {
    timelineControlEl.value = timeline.progress();
  });

  window.addEventListener("visibilitychange", () => {
    if (document.visibilityState === "visible" && isPlaying) {
      resumeAll(timeline);
    }

    if (document.visibilityState === "hidden") {
      pauseAll();
    }
  });

  timelineControlEl.addEventListener("input", () => {
    if (isPlaying) {
      isPlaying = false;
      pauseAll();
      timeline.pause();
    }

    timeline.progress(timelineControlEl.value);
  });

  timelinePlayEl.addEventListener("click", () => {
    if (isPlaying) {
      isPlaying = false;
      pauseAll();
      timeline.pause();
    } else {
      isPlaying = true;
      resumeAll(timeline);
      timeline.play();
    }
  });

  setInterval(() => {
    localStorage.setItem("timelineValue", timeline.progress());
  }, 1000);
}

const setupTL = new TimelineMax();

setupTL
  .add("sceneStart")

  .set(
    [
      mrTriangleAll.handLeft2,
      mrTriangleAll.handLeft3,
      mrTriangleAll.eyesOpened,
      mrTriangleAll.eyesActive,
      mrTriangleAll.mouth2,
      mrTriangleAll.saliva
    ],
    {
      opacity: 0
    }
  );

const spaceTL = new TimelineMax();

spaceTL
  .add("sceneStart")

  .add("playMusic")
  .add(() => {
    Sounds.placeSound("music", spaceTL, "playMusic");
  }, "playMusic")

  .to(
    sky,
    5,
    {
      transformOrigin: "50% 50%",
      scale: 2,
      ease: Power1.easeIn
    },
    "sceneStart"
  )

  .to(
    earth,
    5,
    {
      transformOrigin: `50% 50%`,
      scale: 300,
      ease: Power1.easeIn
    },
    "sceneStart"
  );

const cloudsTL = new TimelineMax();
const cloudsParticles = cloudsGroup.querySelectorAll(".particle");
const cloudAnimations = [];

Array.from(cloudsParticles).forEach((cloud, index) => {
  const cloudAnimation = new TimelineMax().fromTo(
    cloud,
    getRandom(2, 4),
    {
      transformOrigin: "50% 50%",
      x: SCENE_CX - getRandomInt(-SCENE_CX, SCENE_CX),
      y: SCENE_CY - getRandomInt(-SCENE_CY, SCENE_CY),
      opacity: 1,
      scale: 0
    },
    {
      scale: 30,
      opacity: 0
    },
    index / 10
  );

  cloudAnimations.push(cloudAnimation);
});

cloudsTL
  .add("sceneStart")

  .fromTo(
    cloudsGroup,
    0.5,
    {
      opacity: 0
    },
    {
      opacity: 1
    },
    "sceneStart"
  )

  .fromTo(
    earthClouds,
    2,
    {
      opacity: 1
    },
    {
      opacity: 0
    },
    "sceneStart"
  )

  .fromTo(
    tower,
    5,
    {
      transformOrigin: "51% 50%",
      scale: 0
    },
    {
      transformOrigin: "51% 24.5%",
      scale: 40,
      ease: Power3.easeIn
    },
    "sceneStart+=2"
  )

  .fromTo(
    room,
    5,
    {
      transformOrigin: "51% 46%",
      scale: 0
    },
    {
      transformOrigin: "51% 38%",
      scale: 2,
      ease: Power3.easeIn
    },
    "sceneStart+=2"
  )

  .add(cloudAnimations, "sceneStart");

const mrTrinagleTL = new TimelineMax();

mrTrinagleTL
  .add("sceneStart")

  .to(
    mrTriangleAll.body,
    0.2,
    {
      y: 10
    },
    "sceneStart"
  )

  .to(
    mrTriangleAll.handLeft1,
    0.2,
    {
      transformOrigin: "0% 15%",
      rotation: -15
    },
    "sceneStart"
  )

  .to(
    mrTriangleAll.handRight,
    0.2,
    {
      transformOrigin: "100% 15%",
      rotation: 15
    },
    "sceneStart"
  )

  .add("jumpUp")

  .to(
    mrTriangleAll.body,
    1,
    {
      y: 0,
      ease: Elastic.easeOut.config(1, 0.3)
    },
    "jumpUp"
  )

  .to(
    [mrTriangleAll.handLeft1, mrTriangleAll.handRight],
    0.8,
    {
      rotation: 0,
      ease: Elastic.easeOut.config(1, 0.3)
    },
    "jumpUp"
  )

  .set(
    mrTriangleAll.eyesClosed,
    {
      opacity: 0
    },
    "jumpUp+=0.3"
  )

  .set(
    mrTriangleAll.eyesOpened,
    {
      opacity: 1
    },
    "jumpUp+=0.3"
  )

  .add("openHat")

  .to(
    mrTriangleAll.hat,
    1,
    {
      transformOrigin: "0 100%",
      rotation: -105,
      ease: Bounce.easeOut
    },
    "openHat"
  )

  .to(
    mrTriangleAll.irises,
    1,
    {
      y: -5
    },
    "openHat"
  )

  .to(
    [mrTriangleAll.mouth, mrTriangleAll.eyes],
    1,
    {
      y: -3
    },
    "openHat"
  )

  .to(
    mrTriangleAll.irises,
    0.2,
    {
      y: 0
    },
    "openHat+=1"
  )

  .to(
    [mrTriangleAll.mouth, mrTriangleAll.eyes],
    0.2,
    {
      y: 0
    },
    "openHat+=1"
  )

  .add("blink")

  .set(
    mrTriangleAll.eyesOpened,
    {
      opacity: 0
    },
    "blink"
  )

  .set(
    mrTriangleAll.eyesClosed,
    {
      opacity: 1
    },
    "blink"
  )

  .set(
    mrTriangleAll.eyesOpened,
    {
      opacity: 1
    },
    "blink+=0.2"
  )

  .set(
    mrTriangleAll.eyesClosed,
    {
      opacity: 0
    },
    "blink+=0.2"
  )

  .to(mrTriangleAll.handLeft1, 0.5, {
    morphSVG: mrTriangleAll.handLeft2,
    ease: Power1.easeIn
  })

  .to(mrTriangleAll.handLeft1, 0.3, {
    morphSVG: mrTriangleAll.handLeft3,
    ease: Power1.easeOut
  })

  .add("finishMusic")
  .add(() => {
    Sounds.finishSound("music", mrTrinagleTL, "playMusic", "finishMusic", 500);
  }, "finishMusic")

  .add("playButtonSound", "-=0.2")

  .add(() => {
    Sounds.placeSound("button", mrTrinagleTL, "playButtonSound");
  }, "playButtonSound")

  .to(
    mrTriangleAll.button,
    0.2,
    {
      y: 5
    },
    "-=0.1"
  )

  .add("gettingWeird")

  .to(
    mrTriangleAll.eyesActive,
    0.2,
    {
      opacity: 1
    },
    "gettingWeird"
  )

  .to(
    mrTriangleAll.mouth,
    0.5,
    {
      morphSVG: mrTriangleAll.mouth2
    },
    "gettingWeird"
  )

  .fromTo(
    mrTriangleAll.saliva,
    2,
    {
      opacity: 0,
      scaleY: 0
    },
    {
      opacity: 1,
      scaleY: 1
    },
    "gettingWeird+=0.5"
  )

  .add("cover", "+=0.4")

  .add(() => {
    Sounds.placeSound("humming", mrTrinagleTL, "cover");
  }, "cover")

  .to(
    mrTriangleAll.shadow,
    0.3,
    {
      opacity: 0,
      ease: Power1.easeIn
    },
    "cover"
  )

  .to(
    mrTriangleAll.eyesActive.querySelectorAll("circle"),
    1,
    {
      transformOrigin: "50% 50%",
      scale: 100,
      ease: Power1.easeIn
    },
    "cover"
  );

const outroTL = new TimelineMax();
const outroTextLetters = new SplitText(outroText).chars;

outroTL.staggerFromTo(
  outroTextLetters,
  2,
  {
    transformOrigin: "50% 0",
    rotationX: -90,
    y: -10,
    opacity: 0
  },
  {
    rotationX: 0,
    y: 0,
    opacity: 1,
    ease: Elastic.easeOut.config(1, 0.3)
  },
  0.1
);

const mainTimeline = new TimelineMax();

mainTimeline
  .add(setupTL)
  .add(spaceTL)
  .add(cloudsTL, "-=3")
  .add(mrTrinagleTL)
  .add(outroTL);

mainTimeline.pause();

Sounds.allReady()
  .then(() => {
    document.querySelector("body").classList.add("is-ready");
    timelineUI(mainTimeline);
  })
  .catch((err) => console.log(err));

              
            
!
999px

Console