//Variables

$animation-speed: 700ms;
$animation-delay: 0.4s;
$castle-size: 400px;
$grass-size: $castle-size + 240px;
$grass-depth: 48px;
$floor-section-size: $castle-size / 5;
$floor-depth: 72px;
$pillar-depth: 128px;
$pillar-thickness: 64px;
$wall-depth: 116px;
$wall-height: 32px;
$wall-width: $castle-size - ($pillar-thickness * 2) + 24px;
$snap-edge: ($castle-size / 2) - ($pillar-thickness / 2);

//Pivot Mixin

@mixin pivot(){
  position: absolute;
  left: 50%;
  top: 50%;
  transform-origin: 50%;
  transform-style: preserve-3d;
}

//Face Mixin

@mixin face(
  $texture: 'face-placeholder.jpg',
  $texture-size: 128px,
  $texture-position: 'center',
  $height: 128px,
  $width: 128px
){
  backface-visibility: hidden;
  background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/1678849/' + $texture);
  background-position: $texture-position;
  background-size: $texture-size;
  height: $height;
  position: absolute;
  transform-style: preserve-3d;
  width: $width;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: -moz-crisp-edges;
  image-rendering: pixelated;
}

//Box Mixin

@mixin box(
  $pivot-position-x: "center",
  $pivot-position-y: "center",
  $pivot-position-z: "center",
  $depth: 128px,
  $height: 128px,
  $width: 128px,
  $shadow-bottom: true,
  $texture: "box-placeholder.jpg",
  $texture-top: $texture,
  $texture-bottom: $texture,
  $texture-left: $texture,
  $texture-right: $texture,
  $texture-front: $texture,
  $texture-back: $texture,
  $texture-size: 128px,
  $top-x: 0,
  $bottom-x: 0,
  $sides-x: 0,
  $top-y: 0,
  $bottom-y: 0,
  $sides-y: 0,
  $top-z: 0,
  $bottom-z: 0,
  $sides-z: 0
){

  @if($pivot-position-z == 'top'){
    $top-z: 0;
    $bottom-z: - $depth;
    $sides-z: - $depth /2;
  }@else if($pivot-position-z == 'center'){
    $top-z: $depth / 2;
    $bottom-z: - $depth / 2;
    $sides-z: 0;
  }@else{
    $top-z: $depth;
    $bottom-z: 0;
    $sides-z: $depth /2;
  }

  @if($pivot-position-y == 'top'){
    $top-y: 0;
    $bottom-y: 0;
    $sides-y: calc( -50% + #{$height / 2});
  }@else if($pivot-position-y == 'center'){
    $top-y: -50%;
    $bottom-y: -50%;
    $sides-y: -50%;
  }@else{
    $top-y: -$height;
    $bottom-y: -$height;
    $sides-y: calc( -50% - #{$height / 2});
  }

  @if($pivot-position-x == 'left'){
    $top-x: 0;
    $bottom-x: 0;
    $sides-x: calc( -50% + #{$width / 2});
  }@else if($pivot-position-x == 'center'){
    $top-x: -50%;
    $bottom-x: -50%;
    $sides-x: -50%;
  }@else{
    $top-x: -$width;
    $bottom-x: -$width;
    $sides-x: calc( -50% - #{$width / 2});
  }

  @include pivot;

  .face--top{
    @include face($texture-top, $texture-size, center, $height, $width);
    transform: translate3d($top-x, $top-y, $top-z);
  }

  .face--bottom{
    @include face($texture-bottom, $texture-size, center, $height, $width);
    transform: translate3d($bottom-x, $bottom-y, $bottom-z);
    @if($shadow-bottom){
      box-shadow: 0 0 10px rgba(0,0,0,0.8);
    }
  }

  .face--front{
    @include face($texture-front, $texture-size, top center, $depth, $width);
    transform: translate3d($sides-x, $sides-y, $sides-z)
    translateY( $height / 2 )
    rotateX(270deg);
  }

  .face--back{
    @include face($texture-back, $texture-size, top center, $depth, $width);
    transform: translate3d($sides-x, $sides-y, $sides-z)
    translateY( -$height / 2 )
    rotateX(270deg)
    rotateY(180deg);
  }

  .face--left {
    @include face($texture-left, $texture-size, top center, $depth, $height);
    transform: translate3d($sides-x, $sides-y, $sides-z)
    translateX( $width / 2 )
    rotateX(270deg)
    rotateY(90deg);
  }

  .face--right{
    @include face($texture-right, $texture-size, top center, $depth, $height);
    transform: translate3d($sides-x, $sides-y, $sides-z)
    translateX( -$width / 2 )
    rotateX(270deg)
    rotateY(270deg);
  }

}

//HTML & Body

html{
  height: 100%;
}

body {
  background-color: #252c36;
  background-image: linear-gradient(rgba(0,0,0,0.4),rgba(0,0,0,0.4),rgba(0,0,0,0));
  height: 100%;
  overflow: hidden;
  transform: scale(0.75);
}

//Scene

.scene{
  @include pivot;
  transform: rotateX(45deg) rotateZ(225deg);
  animation: sceneSpin 30s infinite linear;
}

@keyframes sceneSpin{
  0%{ transform: rotateX(45deg) rotateZ(225deg); }
  50%{ transform: rotateX(45deg) rotateZ(135deg); }
  100%{ transform: rotateX(45deg) rotateZ(225deg); }
}

//Bouncy Castle

.bouncy-castle{
  @include pivot;
}

//Floor

.floor{
  @include pivot;
  transform: translateZ(-2px);
}

.floor__grass{
  @include box(
    $pivot-position-z: 'top',
    $depth: $grass-depth,
    $height: $grass-size,
    $width: $grass-size,
    $texture: "grass-side.png",
    $texture-top: "grass.png",
    $texture-size: cover
  );
  transform: translateZ(-$floor-depth - 40px);
}

.floor__section{
  @include box(
    $pivot-position-z: 'top',
    $depth: $floor-depth,
    $height: $castle-size,
    $width: $castle-size / 5,
    $texture: "bouncy-dark.png",
    $texture-left: "bouncy-dark-side.png",
    $texture-right: "bouncy-dark-side.png",
    $texture-front: "bouncy-dark-cap.png",
    $texture-back: "bouncy-dark-cap.png",
    $texture-size: cover
  );
  animation-duration: $animation-speed;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
  animation-delay: $animation-delay;
}

.floor__section--teal{
  @include box(
    $pivot-position-z: 'top',
    $depth: $floor-depth,
    $height: $castle-size,
    $width: $castle-size / 5,
    $texture: "bouncy-teal.png",
    $texture-left: "bouncy-teal-side.png",
    $texture-right: "bouncy-teal-side.png",
    $texture-front: "bouncy-teal-cap.png",
    $texture-back: "bouncy-teal-cap.png",
    $texture-size: cover
  );
}

.floor__section--1{
  animation-name: floorSection1;
  transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2)) translateZ(-8px);
}

.floor__section--2{
  animation-name: floorSection2;
  transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size) translateZ(-20px);
}

.floor__section--3{
  animation-name: floorSection3;
  transform: translateZ(-28px);
}

.floor__section--4{
  animation-name: floorSection4;
  transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size)) translateZ(-16px);
}

.floor__section--5{
  animation-name: floorSection5;
  transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2))) translateZ(-8px);
}

@keyframes floorSection1{
  0%{ transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2)) translateZ(-8px); }
  50%{ transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2)) translateZ(-0); }
  100%{ transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2)) translateZ(-8px); }
}

@keyframes floorSection2{
  0%{ transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size) translateZ(-20px); }
  50%{ transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size) translateZ(0); }
  100%{ transform: translateX( ($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size) translateZ(-20px); }
}

@keyframes floorSection3{
  0%{ transform: translateZ(-28px); }
  50%{ transform: translateZ(0); }
  100%{ transform: translateZ(-28px); }
}

@keyframes floorSection4{
  0%{ transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size)) translateZ(-16px); }
  50%{ transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size)) translateZ(0); }
  100%{ transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2) - $floor-section-size)) translateZ(-16px); }
}

@keyframes floorSection5{
  0%{ transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2))) translateZ(-8px); }
  50%{ transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2))) translateZ(0); }
  100%{ transform: translateX( - (($castle-size / 2)  - ($floor-section-size / 2))) translateZ(-8px); }
}

//Pillars

.pillar{
  @include box(
    $pivot-position-z: 'bottom',
    $depth: $pillar-depth,
    $height: $pillar-thickness,
    $width: $pillar-thickness,
    $texture: 'bouncy-pillar.png',
    $texture-top: 'bouncy-pillar-cap.png',
    $texture-size: cover
  );
  animation-duration: $animation-speed;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
  animation-delay: $animation-delay;
}

.pillar--top-left{
  animation-name: pillarTopLeft;
  transform: translateY(-$snap-edge) translateX(-$snap-edge) rotateX(0) rotateY(0);
}

.pillar--top-right{
  animation-name: pillarTopRight;
  transform: translateY(-$snap-edge) translateX($snap-edge) rotateX(0) rotateY(0);
}

.pillar--bottom-left{
  animation-name: pillarBottomLeft;
  transform: translateY($snap-edge) translateX(-$snap-edge) rotateX(0) rotateY(0);
}

.pillar--bottom-right{
  animation-name: pillarBottomRight;
  transform: translateY($snap-edge) translateX($snap-edge) rotateX(0) rotateY(0);
}

@keyframes pillarTopLeft{
  0%{ transform: translateY(-$snap-edge) translateX(-$snap-edge) rotateX(0) rotateY(0); }
  50%{ transform: translateY(-$snap-edge) translateX(-$snap-edge) rotateX(6deg) rotateY(-6deg); }
  100%{ transform: translateY(-$snap-edge) translateX(-$snap-edge) rotateX(0) rotateY(0); }
}

@keyframes pillarTopRight{
  0%{ transform: translateY(-$snap-edge) translateX($snap-edge) rotateX(0) rotateY(0); }
  50%{ transform: translateY(-$snap-edge) translateX($snap-edge) rotateX(6deg) rotateY(6deg); }
  100%{ transform: translateY(-$snap-edge) translateX($snap-edge) rotateX(0) rotateY(0); }
}

@keyframes pillarBottomLeft{
  0%{ transform: translateY($snap-edge) translateX(-$snap-edge) rotateX(0) rotateY(0); }
  50%{ transform: translateY($snap-edge) translateX(-$snap-edge) rotateX(-6deg) rotateY(-6deg); }
  100%{ transform: translateY($snap-edge) translateX(-$snap-edge) rotateX(0) rotateY(0); }
}

@keyframes pillarBottomRight{
  0%{ transform: translateY($snap-edge) translateX($snap-edge) rotateX(0) rotateY(0); }
  50%{ transform: translateY($snap-edge) translateX($snap-edge) rotateX(-6deg) rotateY(6deg); }
  100%{ transform: translateY($snap-edge) translateX($snap-edge) rotateX(0) rotateY(0); }
}

//Walls

.wall{
  @include box(
    $pivot-position-z: 'bottom',
    $depth: $wall-depth,
    $height: $wall-height,
    $width: $wall-width,
    $texture: "bouncy-wall.png",
    $texture-top: "bouncy-wall-top.png",
    $texture-size: cover
  );
  animation-duration: $animation-speed;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
  animation-delay: $animation-delay;
}

.wall--back{
  animation-name: wallBack;
  transform: translateY($snap-edge) rotateX(0deg);
}

.wall--left{
  animation-name: wallLeft;
  transform: translateX(-$snap-edge) rotateZ(90deg) rotateX(0);
}

.wall--right{
  animation-name: wallRight;
  transform: translateX($snap-edge) rotateZ(90deg) rotateX(0);
}

@keyframes wallBack{
  0%{ transform: translateY($snap-edge) rotateX(0deg); }
  50%{ transform: translateY($snap-edge) rotateX(-8deg); }
  100%{ transform: translateY($snap-edge) rotateX(0deg); }
}

@keyframes wallRight{
  0%{ transform: translateX($snap-edge) rotateZ(90deg) rotateX(0); }
  50%{ transform: translateX($snap-edge) rotateZ(90deg) rotateX(8deg); }
  100%{ transform: translateX($snap-edge) rotateZ(90deg) rotateX(0); }
}

@keyframes wallLeft{
  0%{ transform: translateX(-$snap-edge) rotateZ(90deg) rotateX(0); }
  50%{ transform: translateX(-$snap-edge) rotateZ(90deg) rotateX(-8deg); }
  100%{ transform: translateX(-$snap-edge) rotateZ(90deg) rotateX(0); }
}

//Robot

.robot{
  @include box(
    $pivot-position-z: 'bottom',
    $depth: 27px,
    $height: 54px,
    $width: 27px,
    $shadow-bottom: false,
    $texture: "face-placeholder.jpg",
    $texture-bottom: "robot-bottom.gif",
    $texture-top: "robot-top.png",
    $texture-left: "robot-side.png",
    $texture-right: "robot-side.png",
    $texture-front: "robot-cap.png",
    $texture-back: "robot-cap.png",
    $texture-size: cover
  );
  animation: robot $animation-speed infinite ease-in-out $animation-delay;
  transform: translateY(-100px) translateX(100px) translateZ(-20px) rotateZ(45deg);

  .face--bottom{
    height: 78px;
    width: 51px;
    transform: translate3d(-50%, -50%, 13px);
  }
}

@keyframes robot{
  0%{ transform: translateY(-100px) translateX(100px) translateZ(-20px) rotateZ(45deg); }
  50%{ transform: translateY(-100px) translateX(100px) translateZ(0) rotateZ(45deg); }
  100%{ transform: translateY(-100px) translateX(100px) translateZ(-20px) rotateZ(45deg); }
}

//Steve

.steve{
  @include pivot;
  animation: steve $animation-speed infinite ease-in-out $animation-delay;
  transform: translateZ(18px);
}

.steve__head{
  @include box(
    $pivot-position-z: 'bottom',
    $depth: 32px,
    $height: 32px,
    $width: 32px,
    $shadow-bottom: false,
    $texture: "steve-head-top.png",
    $texture-back: "steve-face.png",
    $texture-left: "steve-head-right.png",
    $texture-right: "steve-head-left.png",
    $texture-size: cover
  );
  animation: steveHead $animation-speed infinite ease-in-out $animation-delay;
  transform: translateZ(54px);
}

.steve__body{
  @include box(
    $pivot-position-z: 'top',
    $depth: 48px,
    $height: 24px,
    $width: 32px,
    $shadow-bottom: false,
    $texture: "steve-body.png",
    $texture-back: "steve-body-front.png",
    $texture-size: cover
  );
  transform: translateZ(52px);
}

.steve__leg{
  @include box(
    $pivot-position-z: 'top',
    $depth: 52px,
    $height: 16px,
    $width: 16px,
    $texture: "steve-leg.png",
    $texture-size: cover
  );
  animation-duration: $animation-speed;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
  animation-delay: $animation-delay;
}

.steve__arm{
  @include box(
    $pivot-position-z: 'top',
    $depth: 52px,
    $height: 16px,
    $width: 16px,
    $shadow-bottom: false,
    $texture: "steve-arm.png",
    $texture-size: cover
  );
  animation-duration: $animation-speed;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
  animation-delay: $animation-delay;
}

.steve__arm--left{
  animation-name: steveArmLeft;
  transform: translateX(-24px) translateZ(48px);
}
.steve__arm--right{
  animation-name: steveArmRight;
  transform: translateX(24px) translateZ(48px);
}

.steve__leg--left{
  animation-name: steveLegLeft;
  transform: translateX(-8px);
}

.steve__leg--right{
  animation-name: steveLegRight;
  transform: translateX(8px);
}

@keyframes steve{
  0%{ transform: translateZ(18px); }
  50%{ transform: translateZ(128px); }
  100%{ transform: translateZ(18px); }
}

@keyframes steveHead{
  0%{ transform: translateZ(54px) rotateX(0); }
  50%{ transform: translateZ(54px) rotateX(-8deg); }
  100%{ transform: translateZ(54px) rotateX(0); }
}

@keyframes steveArmLeft{
  0%{ transform: translateX(-24px) translateZ(48px) rotateY(0); }
  50%{ transform: translateX(-24px) translateZ(48px) rotateY(40deg); }
  100%{ transform: translateX(-24px) translateZ(48px) rotateY(0); }
}

@keyframes steveArmRight{
  0%{ transform: translateX(24px) translateZ(48px) rotateY(0); }
  50%{ transform: translateX(24px) translateZ(48px) rotateY(-40deg); }
  100%{ transform: translateX(24px) translateZ(48px) rotateY(0); }
}

@keyframes steveLegLeft{
  0%{ transform: translateX(-8px) rotateY(0); }
  50%{ transform: translateX(-8px) rotateY(20deg); }
  100%{ transform: translateX(-8px) rotateY(0); }
}

@keyframes steveLegRight{
  0%{ transform: translateX(8px) rotateY(0); }
  50%{ transform: translateX(8px) rotateY(-20deg); }
  100%{ transform: translateX(8px) rotateY(0); }
}

//Rope

.rope{
  @include pivot;
  animation-duration: $animation-speed;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
  animation-delay: $animation-delay;
}

.rope .face{
  @include face('rope.png', cover, center, 124px, $castle-size);
  transform: translate3d(-50%, -50%, 0);
}

.rope--left{
  animation-name: ropeLeft;
  transform: translateX(252px) translateZ(-74px) rotateY(30deg) rotateZ(-90deg);
}

.rope--right{
  animation-name: ropeRight;
  transform: translateX(-252px) translateZ(-74px) rotateY(-30deg) rotateZ(-270deg);
}

@keyframes ropeLeft{
  0%{ transform: translateX(252px) translateZ(-74px) rotateY(30deg) rotateZ(-90deg); }
  50%{ transform: translateX(252px) translateZ(-74px) rotateY(40deg) rotateZ(-90deg); }
  100%{ transform: translateX(252px) translateZ(-74px) rotateY(30deg) rotateZ(-90deg); }
}

@keyframes ropeRight{
  0%{ transform: translateX(-252px) translateZ(-74px) rotateY(-30deg) rotateZ(-270deg); }
  50%{ transform: translateX(-252px) translateZ(-74px) rotateY(-40deg) rotateZ(-270deg); }
  100%{ transform: translateX(-252px) translateZ(-74px) rotateY(-30deg) rotateZ(-270deg); }
}