cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Pen Settings

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. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

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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.

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Code Indentation

     

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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.

            
              <article>
	<p id="text">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Doloremque porro illo voluptates, delectus fugiat culpa aspernatur cupiditate ipsa cum totam sapiente non error veritatis dignissimos in. Corporis soluta, quo iure.</p>
	<button id="reset" data-bound="true">reset</button>
</article>
            
          
!
            
              
*{
	box-sizing:border-box;
}

html,body{
	width:100%;
	height:100%;
}

body{
	margin:0;
	background:#222;
}

p{
	padding : 1em;
	font-family : monospace;
	font-size:2em;
}
button{
	margin:auto;
	text-align:center;
	display:block;
	width:250px;
	height:70px;
	background:orange;
	border:0;
	cursor:pointer;
	position: absolute;
	left: 0;
	right:0;

	border-radius:3px;
	font-family : monospace;
	font-size:2em;
}

article{
  width:80%;
  margin:auto;
}
            
          
!
            
              var time = 0;
function Gravity(id){
  var that = this;
  var element = document.getElementById(id);
  var text = element.textContent;
  var arr = text.split('');

  this.animate = true;
  this.floating = true;
  this.resetTime = 0;

  this.positionType = getComputedStyle(element).position;

  this.lerp = function (e,t,i){
    return(1-i)*e+i*t;
  }
  this.checkBound = function(){
    if (element.hasAttribute("data-bound")) {
      return element.dataset.bound === "true";
    }
  }

  this.useBound = this.checkBound();
  this.colors = [
      '#f44336','#e91e63','#9c27b0',
      '#673ab7','#3f51b5','#2196f3',
      '#03a9f4','#00bcd4','#009688',
      '#4caf50','#8bc34a','#cddc39',
      '#ffeb3b','#ffc107','#ff9800',
      '#ff5722','#795548','#9e9e9e',
      '#607d8b'
  ];

  this.randomColor = function(){
    var randNum = Math.floor(Math.random() * this.colors.length);
    return this.colors[randNum];
  }

  this.bounds = this.useBound ? {
    min : {
      x : element.offsetLeft,
      y : element.offsetTop 
    },
    max : {
      x : element.offsetLeft + element.offsetWidth,
      y : element.offsetTop + element.offsetHeight
    }
  } : {
    min : {
      x : 0,
      y : 0
    },
    max : {
      x : window.innerWidth,
      y : window.innerHeight
    }
  }

  this.pointInCircle = function(point, target, radius) {
    var distsq = (point.x - target.x) * (point.x - target.x) + (point.y - target.y) * (point.y - target.y);
    return [distsq <= radius * radius, distsq];
  }

  function createSpan(text,pos){
    var span = document.createElement('span');
        span.innerHTML = text;
        span.style.position = "relative";
        span.style.display = "inline-block";
        span.style.minWidth = "10px";
        span.style.color = that.randomColor();
        span._own = {
          pos : {
            x : 0,
            y : 0
          },
          vel : {
            x : -0.5 + Math.random(),
            y : -0.5 + Math.random()
          },
          speed : {
            x : 1,
            y : 1
          },
          dir : {
            x : 1,
            y : 1
          }
        }
    return span;
  }
  this.textSpans = [];

  element.innerHTML = '';

  arr.forEach(function(t,i){
    var el = createSpan(t,{
      x : 0,
      y : 0
    });
    element.appendChild(el);
    that.textSpans.push(el);
  });

  this.getDim = function(){

    this.textSpans.forEach(function(t,i){
      var offset = {
        x : 0,
        y : 0
      }
      if(that.positionType === 'relative' || that.positionType === 'absolute'){
        offset.x = element.offsetLeft
        offset.y = element.offsetTop
      }
      t._own.real = {
        x : offset.x +t.offsetLeft,
        y : offset.y +t.offsetTop
      },
      t._own.size = {
        x : t.offsetWidth,
        y : t.offsetHeight
      }

    });

  };

  this.getDim();

  this.floatText = function(){
    this.textSpans.forEach(function(t,i){
      
      if(t._own.pos.x + t._own.real.x < that.bounds.min.x || t._own.pos.x + t._own.real.x + t._own.size.x > that.bounds.max.x){
        t._own.dir.x *= -1;
      }
      if(t._own.pos.y + t._own.real.y < that.bounds.min.y || t._own.pos.y + t._own.real.y + t._own.size.y > that.bounds.max.y){
        t._own.dir.y *= -1;
      }
      t._own.pos.x += (t._own.vel.x * t._own.speed.x) * t._own.dir.x;
      t._own.pos.y += (t._own.vel.y * t._own.speed.y) * t._own.dir.y;
      t.style.transform = 'translateX('+ t._own.pos.x +'px) translateY('+ t._own.pos.y +'px)';
    
    });
  }
  this.update = function(){
    if(this.animate){
      if(this.floating){
        this.floatText();
      }else{
        this.floatBackwards();
      }
    }
  }

  this.floatBackwards = function(){
    this.textSpans.forEach(function(t,i){
      
      var x = that.lerp(t._own.pos.x,0, that.resetTime / 10);
      var y = that.lerp(t._own.pos.y,0, that.resetTime / 10);
     
      t.style.transform = 'translateX('+ x +'px) translateY('+ y +'px)';
    
    });

    if(this.resetTime===10){
      this.animate = false;
      this.resetTime = 0;
    }
    this.resetTime++;
  }
  this.reset = function(){
    this.floating = false;
  }
  this.restart = function(){
    this.textSpans.forEach(function(t,i){
      t._own.pos.x = 0;
      t._own.pos.y = 0;
    });
    this.floating = true;
    this.animate = true;
  }
  
  window.onresize = function(){
    that.getDim();
  }
  
}

var paragraph = new Gravity('text');
var gravity = new Gravity('reset');

var button = document.getElementById('reset');
button.addEventListener('click',function(){
  if(gravity.animate){
    gravity.reset();
    paragraph.reset();
  }else{
    gravity.restart();
    paragraph.restart();
  }
});

var render = function (time) { 
  requestAnimationFrame( render );

  animation(time);
};

//__________ animation

function animation(time){
  paragraph.update();
  gravity.update();
};

//__________

render(time);

            
          
!
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